fix to lower case

ConfidentialConvert and some test framework update

.github/scripts/rename/README.md

@@ -1,36 +0,0 @@
-## Renaming ripple(d) to xrpl(d)
-
-In the initial phases of development of the XRPL, the open source codebase was
-called "rippled" and it remains with that name even today. Today, over 1000
-nodes run the application, and code contributions have been submitted by
-developers located around the world. The XRPL community is larger than ever.
-In light of the decentralized and diversified nature of XRPL, we will rename any
-references to `ripple` and `rippled` to `xrpl` and `xrpld`, when appropriate.
-
-See [here](https://xls.xrpl.org/xls/XLS-0095-rename-rippled-to-xrpld.html) for
-more information.
-
-### Scripts
-
-To facilitate this transition, there will be multiple scripts that developers
-can run on their own PRs and forks to minimize conflicts. Each script should be
-run from the repository root.
-
-1. `.github/scripts/rename/definitions.sh`: This script will rename all
-   definitions, such as include guards, from `RIPPLE_XXX` and `RIPPLED_XXX` to
-   `XRPL_XXX`.
-2. `.github/scripts/rename/copyright.sh`: This script will remove superflous
-   copyright notices.
-3. `.github/scripts/rename/cmake.sh`: This script will rename all CMake files
-   from `RippleXXX.cmake` or `RippledXXX.cmake` to `XrplXXX.cmake`, and any
-   references to `ripple` and `rippled` (with or without capital letters) to
-   `xrpl` and `xrpld`, respectively. The name of the binary will remain as-is,
-   and will only be renamed to `xrpld` by a later script.
-
-You can run all these scripts from the repository root as follows:
-
-```shell
-./.github/scripts/rename/definitions.sh .
-./.github/scripts/rename/copyright.sh .
-./.github/scripts/rename/cmake.sh .
-```

.github/scripts/rename/cmake.sh

@@ -1,92 +0,0 @@
-#!/bin/bash
-
-# Exit the script as soon as an error occurs.
-set -e
-
-# On MacOS, ensure that GNU sed and head are installed and available as `gsed`
-# and `ghead`, respectively.
-SED_COMMAND=sed
-HEAD_COMMAND=head
-if [[ "${OSTYPE}" == 'darwin'* ]]; then
-  if ! command -v gsed &> /dev/null; then
-      echo "Error: gsed is not installed. Please install it using 'brew install gnu-sed'."
-      exit 1
-  fi
-  SED_COMMAND=gsed
-  if ! command -v ghead &> /dev/null; then
-      echo "Error: ghead is not installed. Please install it using 'brew install coreutils'."
-      exit 1
-  fi
-  HEAD_COMMAND=ghead
-fi
-
-# This script renames CMake files from `RippleXXX.cmake` or `RippledXXX.cmake`
-# to `XrplXXX.cmake`, and any references to `ripple` and `rippled` (with or
-# without capital letters) to `xrpl` and `xrpld`, respectively. The name of the
-# binary will remain as-is, and will only be renamed to `xrpld` in a different
-# script, but the proto file will be renamed.
-# Usage: .github/scripts/rename/cmake.sh <repository directory>
-
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <repository directory>"
-    exit 1
-fi
-
-DIRECTORY=$1
-echo "Processing directory: ${DIRECTORY}"
-if [ ! -d "${DIRECTORY}" ]; then
-    echo "Error: Directory '${DIRECTORY}' does not exist."
-    exit 1
-fi
-pushd ${DIRECTORY}
-
-# Rename the files.
-find cmake -type f -name 'Rippled*.cmake' -exec bash -c 'mv "${1}" "${1/Rippled/Xrpl}"' - {} \;
-find cmake -type f -name 'Ripple*.cmake' -exec bash -c 'mv "${1}" "${1/Ripple/Xrpl}"' - {} \;
-if [ -e cmake/xrpl_add_test.cmake ]; then
-  mv cmake/xrpl_add_test.cmake cmake/XrplAddTest.cmake
-fi
-if [ -e include/xrpl/proto/ripple.proto ]; then
-  mv include/xrpl/proto/ripple.proto include/xrpl/proto/xrpl.proto
-fi
-
-# Rename inside the files.
-find cmake -type f -name '*.cmake' | while read -r FILE; do
-    echo "Processing file: ${FILE}"
-    ${SED_COMMAND} -i 's/Rippled/Xrpld/g' "${FILE}"
-    ${SED_COMMAND} -i 's/Ripple/Xrpl/g' "${FILE}"
-    ${SED_COMMAND} -i 's/rippled/xrpld/g' "${FILE}"
-    ${SED_COMMAND} -i 's/ripple/xrpl/g' "${FILE}"
-done
-${SED_COMMAND} -i -E 's/Rippled?/Xrpl/g' CMakeLists.txt
-${SED_COMMAND} -i 's/ripple/xrpl/g' CMakeLists.txt
-${SED_COMMAND} -i 's/include(xrpl_add_test)/include(XrplAddTest)/' src/tests/libxrpl/CMakeLists.txt
-${SED_COMMAND} -i 's/ripple.pb.h/xrpl.pb.h/' include/xrpl/protocol/messages.h
-${SED_COMMAND} -i 's/ripple.pb.h/xrpl.pb.h/' BUILD.md
-${SED_COMMAND} -i 's/ripple.pb.h/xrpl.pb.h/' BUILD.md
-
-# Restore the name of the validator keys repository.
-${SED_COMMAND} -i 's@xrpl/validator-keys-tool@ripple/validator-keys-tool@' cmake/XrplValidatorKeys.cmake
-
-# Ensure the name of the binary and config remain 'rippled' for now.
-${SED_COMMAND} -i -E 's/xrpld(-example)?\.cfg/rippled\1.cfg/g' cmake/XrplInstall.cmake
-if grep -q '"xrpld"' cmake/XrplCore.cmake; then
-  # The script has been rerun, so just restore the name of the binary.
-  ${SED_COMMAND} -i 's/"xrpld"/"rippled"/' cmake/XrplCore.cmake
-elif ! grep -q '"rippled"' cmake/XrplCore.cmake; then
-  ${HEAD_COMMAND} -n -1 cmake/XrplCore.cmake > cmake.tmp
-  echo '  # For the time being, we will keep the name of the binary as it was.' >> cmake.tmp
-  echo '  set_target_properties(xrpld PROPERTIES OUTPUT_NAME "rippled")' >> cmake.tmp
-  tail -1 cmake/XrplCore.cmake >> cmake.tmp
-  mv cmake.tmp cmake/XrplCore.cmake
-fi
-
-# Restore the symlink from 'xrpld' to 'rippled'.
-${SED_COMMAND} -i -E 's@create_symbolic_link\(xrpld@create_symbolic_link(rippled@' cmake/XrplInstall.cmake
-
-# Remove the symlink that previously pointed from 'ripple' to 'xrpl' but now is
-# no longer needed.
-${SED_COMMAND} -z -i -E 's@install\(CODE.+CMAKE_INSTALL_INCLUDEDIR}/xrpl\)\n"\)\n+@@' cmake/XrplInstall.cmake
-
-popd
-echo "Renaming complete."

.github/scripts/rename/copyright.sh

@@ -1,103 +0,0 @@
-#!/bin/bash
-
-# Exit the script as soon as an error occurs.
-set -e
-
-# On MacOS, ensure that GNU sed is installed and available as `gsed`.
-SED_COMMAND=sed
-if [[ "${OSTYPE}" == 'darwin'* ]]; then
-  if ! command -v gsed &> /dev/null; then
-      echo "Error: gsed is not installed. Please install it using 'brew install gnu-sed'."
-      exit 1
-  fi
-  SED_COMMAND=gsed
-fi
-
-# This script removes superfluous copyright notices in source and header files
-# in this project. Specifically, it removes all notices referencing Ripple,
-# XRPLF, and certain individual contributors upon mutual agreement, so the one
-# in the LICENSE.md file applies throughout. Copyright notices referencing
-# external contributions, e.g. from Bitcoin, remain as-is.
-# Usage: .github/scripts/rename/copyright.sh <repository directory>
-
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <repository directory>"
-    exit 1
-fi
-
-DIRECTORY=$1
-echo "Processing directory: ${DIRECTORY}"
-if [ ! -d "${DIRECTORY}" ]; then
-    echo "Error: Directory '${DIRECTORY}' does not exist."
-    exit 1
-fi
-pushd ${DIRECTORY}
-
-# Prevent sed and echo from removing newlines and tabs in string literals by
-# temporarily replacing them with placeholders. This only affects one file.
-PLACEHOLDER_NEWLINE="__NEWLINE__"
-PLACEHOLDER_TAB="__TAB__"
-${SED_COMMAND} -i -E "s@\\\n@${PLACEHOLDER_NEWLINE}@g" src/test/rpc/ValidatorInfo_test.cpp
-${SED_COMMAND} -i -E "s@\\\t@${PLACEHOLDER_TAB}@g" src/test/rpc/ValidatorInfo_test.cpp
-
-# Process the include/ and src/ directories.
-DIRECTORIES=("include" "src")
-for DIRECTORY in "${DIRECTORIES[@]}"; do
-  echo "Processing directory: ${DIRECTORY}"
-
-  find "${DIRECTORY}" -type f \( -name "*.h" -o -name "*.hpp" -o -name "*.ipp" -o -name "*.cpp" -o -name "*.macro" \) | while read -r FILE; do
-      echo "Processing file: ${FILE}"
-      # Handle the cases where the copyright notice is enclosed in /* ... */
-      # and usually surrounded by //---- and //======.
-      ${SED_COMMAND} -z -i -E 's@^//-------+\n+@@' "${FILE}"
-      ${SED_COMMAND} -z -i -E 's@^.*Copyright.+(Ripple|Bougalis|Falco|Hinnant|Null|Ritchford|XRPLF).+PERFORMANCE OF THIS SOFTWARE\.\n\*/\n+@@' "${FILE}"
-      ${SED_COMMAND} -z -i -E 's@^//=======+\n+@@' "${FILE}"
-
-      # Handle the cases where the copyright notice is commented out with //.
-      ${SED_COMMAND} -z -i -E 's@^//\n// Copyright.+Falco \(vinnie dot falco at gmail dot com\)\n//\n+@@' "${FILE}"
-  done
-done
-
-# Restore copyright notices that were removed from specific files, without
-# restoring the verbiage that is already present in LICENSE.md. Ensure that if
-# the script is run multiple times, duplicate notices are not added.
-if ! grep -q 'Raw Material Software' include/xrpl/beast/core/CurrentThreadName.h; then
-  echo -e "// Portions of this file are from JUCE (http://www.juce.com).\n// Copyright (c) 2013 - Raw Material Software Ltd.\n// Please visit http://www.juce.com\n\n$(cat include/xrpl/beast/core/CurrentThreadName.h)" > include/xrpl/beast/core/CurrentThreadName.h
-fi
-if ! grep -q 'Dev Null' src/test/app/NetworkID_test.cpp; then
-  echo -e "// Copyright (c) 2020 Dev Null Productions\n\n$(cat src/test/app/NetworkID_test.cpp)" > src/test/app/NetworkID_test.cpp
-fi
-if ! grep -q 'Dev Null' src/test/app/tx/apply_test.cpp; then
-  echo -e "// Copyright (c) 2020 Dev Null Productions\n\n$(cat src/test/app/tx/apply_test.cpp)" > src/test/app/tx/apply_test.cpp
-fi
-if ! grep -q 'Dev Null' src/test/rpc/ManifestRPC_test.cpp; then
-  echo -e "// Copyright (c) 2020 Dev Null Productions\n\n$(cat src/test/rpc/ManifestRPC_test.cpp)" > src/test/rpc/ManifestRPC_test.cpp
-fi
-if ! grep -q 'Dev Null' src/test/rpc/ValidatorInfo_test.cpp; then
-  echo -e "// Copyright (c) 2020 Dev Null Productions\n\n$(cat src/test/rpc/ValidatorInfo_test.cpp)" > src/test/rpc/ValidatorInfo_test.cpp
-fi
-if ! grep -q 'Dev Null' src/xrpld/rpc/handlers/DoManifest.cpp; then
-  echo -e "// Copyright (c) 2019 Dev Null Productions\n\n$(cat src/xrpld/rpc/handlers/DoManifest.cpp)" > src/xrpld/rpc/handlers/DoManifest.cpp
-fi
-if ! grep -q 'Dev Null' src/xrpld/rpc/handlers/ValidatorInfo.cpp; then
-  echo -e "// Copyright (c) 2019 Dev Null Productions\n\n$(cat src/xrpld/rpc/handlers/ValidatorInfo.cpp)" > src/xrpld/rpc/handlers/ValidatorInfo.cpp
-fi
-if ! grep -q 'Bougalis' include/xrpl/basics/SlabAllocator.h; then
-  echo -e "// Copyright (c) 2022, Nikolaos D. Bougalis <nikb@bougalis.net>\n\n$(cat include/xrpl/basics/SlabAllocator.h)" > include/xrpl/basics/SlabAllocator.h
-fi
-if ! grep -q 'Bougalis' include/xrpl/basics/spinlock.h; then
-  echo -e "// Copyright (c) 2022, Nikolaos D. Bougalis <nikb@bougalis.net>\n\n$(cat include/xrpl/basics/spinlock.h)" > include/xrpl/basics/spinlock.h
-fi
-if ! grep -q 'Bougalis' include/xrpl/basics/tagged_integer.h; then
-  echo -e "// Copyright (c) 2014, Nikolaos D. Bougalis <nikb@bougalis.net>\n\n$(cat include/xrpl/basics/tagged_integer.h)" > include/xrpl/basics/tagged_integer.h
-fi
-if ! grep -q 'Ritchford' include/xrpl/beast/utility/Zero.h; then
-  echo -e "// Copyright (c) 2014, Tom Ritchford <tom@swirly.com>\n\n$(cat include/xrpl/beast/utility/Zero.h)" > include/xrpl/beast/utility/Zero.h
-fi
-
-# Restore newlines and tabs in string literals in the affected file.
-${SED_COMMAND} -i -E "s@${PLACEHOLDER_NEWLINE}@\\\n@g" src/test/rpc/ValidatorInfo_test.cpp
-${SED_COMMAND} -i -E "s@${PLACEHOLDER_TAB}@\\\t@g" src/test/rpc/ValidatorInfo_test.cpp
-
-popd
-echo "Removal complete."

.github/scripts/rename/definitions.sh

@@ -1,42 +0,0 @@
-#!/bin/bash
-
-# Exit the script as soon as an error occurs.
-set -e
-
-# On MacOS, ensure that GNU sed is installed and available as `gsed`.
-SED_COMMAND=sed
-if [[ "${OSTYPE}" == 'darwin'* ]]; then
-  if ! command -v gsed &> /dev/null; then
-      echo "Error: gsed is not installed. Please install it using 'brew install gnu-sed'."
-      exit 1
-  fi
-  SED_COMMAND=gsed
-fi
-
-# This script renames definitions, such as include guards, in this project.
-# Specifically, it renames "RIPPLED_XXX" and "RIPPLE_XXX" to "XRPL_XXX" by
-# scanning all cmake, header, and source files in the specified directory and
-# its subdirectories.
-# Usage: .github/scripts/rename/definitions.sh <repository directory>
-
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <repository directory>"
-    exit 1
-fi
-
-DIRECTORY=$1
-echo "Processing directory: ${DIRECTORY}"
-if [ ! -d "${DIRECTORY}" ]; then
-    echo "Error: Directory '${DIRECTORY}' does not exist."
-    exit 1
-fi
-
-find "${DIRECTORY}" -type f \( -name "*.h" -o -name "*.hpp" -o -name "*.ipp" -o -name "*.cpp" \) | while read -r FILE; do
-    echo "Processing file: ${FILE}"
-    ${SED_COMMAND} -i -E 's@#(define|endif|if|ifdef|ifndef)(.*)(RIPPLED_|RIPPLE_)([A-Z0-9_]+)@#\1\2XRPL_\4@g' "${FILE}"
-done
-find "${DIRECTORY}" -type f \( -name "*.cmake" -o -name "*.txt" \) | while read -r FILE; do
-    echo "Processing file: ${FILE}"
-    ${SED_COMMAND} -i -E 's@(RIPPLED_|RIPPLE_)([A-Z0-9_]+)@XRPL_\2@g' "${FILE}"
-done
-echo "Renaming complete."

.github/scripts/strategy-matrix/generate.py

@@ -2,12 +2,11 @@
 import argparse
 import itertools
 import json
-from dataclasses import dataclass
 from pathlib import Path
+from dataclasses import dataclass
 
 THIS_DIR = Path(__file__).parent.resolve()
 
-
 @dataclass
 class Config:
     architecture: list[dict]
@@ -15,8 +14,7 @@ class Config:
     build_type: list[str]
     cmake_args: list[str]
 
-
-"""
+'''
 Generate a strategy matrix for GitHub Actions CI.
 
 On each PR commit we will build a selection of Debian, RHEL, Ubuntu, MacOS, and
@@ -29,23 +27,19 @@ We will further set additional CMake arguments as follows:
 - All release builds will have the `assert` option.
 - Certain Debian Bookworm configurations will change the reference fee, enable
   codecov, and enable voidstar in PRs.
-"""
-
-
+'''
 def generate_strategy_matrix(all: bool, config: Config) -> list:
     configurations = []
-    for architecture, os, build_type, cmake_args in itertools.product(
-        config.architecture, config.os, config.build_type, config.cmake_args
-    ):
+    for architecture, os, build_type, cmake_args in itertools.product(config.architecture, config.os, config.build_type, config.cmake_args):
         # The default CMake target is 'all' for Linux and MacOS and 'install'
         # for Windows, but it can get overridden for certain configurations.
-        cmake_target = "install" if os["distro_name"] == "windows" else "all"
+        cmake_target = 'install' if os["distro_name"] == 'windows' else 'all'
 
         # We build and test all configurations by default, except for Windows in
         # Debug, because it is too slow, as well as when code coverage is
         # enabled as that mode already runs the tests.
         build_only = False
-        if os["distro_name"] == "windows" and build_type == "Debug":
+        if os['distro_name'] == 'windows' and build_type == 'Debug':
             build_only = True
 
         # Only generate a subset of configurations in PRs.
@@ -60,46 +54,21 @@ def generate_strategy_matrix(all: bool, config: Config) -> list:
             # - Bookworm using Clang 17: Release and no Unity on linux/amd64,
             #   set the reference fee to 1000.
             # - Bookworm using Clang 20: Debug and Unity on linux/amd64.
-            if os["distro_name"] == "debian":
+            if os['distro_name'] == 'debian':
                 skip = True
-                if os["distro_version"] == "bookworm":
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-13"
-                        and build_type == "Release"
-                        and "-Dunity=ON" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
-                        cmake_args = f"-DUNIT_TEST_REFERENCE_FEE=500 {cmake_args}"
+                if os['distro_version'] == 'bookworm':
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'gcc-13' and build_type == 'Release' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'linux/amd64':
+                        cmake_args = f'-DUNIT_TEST_REFERENCE_FEE=500 {cmake_args}'
                         skip = False
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-15"
-                        and build_type == "Debug"
-                        and "-Dunity=OFF" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'gcc-15' and build_type == 'Debug' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'linux/amd64':
                         skip = False
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "clang-16"
-                        and build_type == "Debug"
-                        and "-Dunity=OFF" in cmake_args
-                        and architecture["platform"] == "linux/arm64"
-                    ):
-                        cmake_args = f"-Dvoidstar=ON {cmake_args}"
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-16' and build_type == 'Debug' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'linux/arm64':
+                        cmake_args = f'-Dvoidstar=ON {cmake_args}'
                         skip = False
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "clang-17"
-                        and build_type == "Release"
-                        and "-Dunity=ON" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
-                        cmake_args = f"-DUNIT_TEST_REFERENCE_FEE=1000 {cmake_args}"
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-17' and build_type == 'Release' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'linux/amd64':
+                        cmake_args = f'-DUNIT_TEST_REFERENCE_FEE=1000 {cmake_args}'
                         skip = False
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "clang-20"
-                        and build_type == "Debug"
-                        and "-Dunity=ON" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-20' and build_type == 'Debug' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'linux/amd64':
                         skip = False
                 if skip:
                     continue
@@ -107,23 +76,13 @@ def generate_strategy_matrix(all: bool, config: Config) -> list:
             # RHEL:
             # - 9 using GCC 12: Debug and Unity on linux/amd64.
             # - 10 using Clang: Release and no Unity on linux/amd64.
-            if os["distro_name"] == "rhel":
+            if os['distro_name'] == 'rhel':
                 skip = True
-                if os["distro_version"] == "9":
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-12"
-                        and build_type == "Debug"
-                        and "-Dunity=ON" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
+                if os['distro_version'] == '9':
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'gcc-12' and build_type == 'Debug' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'linux/amd64':
                         skip = False
-                elif os["distro_version"] == "10":
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "clang-any"
-                        and build_type == "Release"
-                        and "-Dunity=OFF" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
+                elif os['distro_version'] == '10':
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-any' and build_type == 'Release' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'linux/amd64':
                         skip = False
                 if skip:
                     continue
@@ -133,169 +92,106 @@ def generate_strategy_matrix(all: bool, config: Config) -> list:
             # - Noble using GCC 14: Release and Unity on linux/amd64.
             # - Noble using Clang 18: Debug and no Unity on linux/amd64.
             # - Noble using Clang 19: Release and Unity on linux/arm64.
-            if os["distro_name"] == "ubuntu":
+            if os['distro_name'] == 'ubuntu':
                 skip = True
-                if os["distro_version"] == "jammy":
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-12"
-                        and build_type == "Debug"
-                        and "-Dunity=OFF" in cmake_args
-                        and architecture["platform"] == "linux/arm64"
-                    ):
+                if os['distro_version'] == 'jammy':
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'gcc-12' and build_type == 'Debug' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'linux/arm64':
                         skip = False
-                elif os["distro_version"] == "noble":
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-14"
-                        and build_type == "Release"
-                        and "-Dunity=ON" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
+                elif os['distro_version'] == 'noble':
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'gcc-14' and build_type == 'Release' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'linux/amd64':
                         skip = False
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "clang-18"
-                        and build_type == "Debug"
-                        and "-Dunity=OFF" in cmake_args
-                        and architecture["platform"] == "linux/amd64"
-                    ):
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-18' and build_type == 'Debug' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'linux/amd64':
                         skip = False
-                    if (
-                        f"{os['compiler_name']}-{os['compiler_version']}" == "clang-19"
-                        and build_type == "Release"
-                        and "-Dunity=ON" in cmake_args
-                        and architecture["platform"] == "linux/arm64"
-                    ):
+                    if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-19' and build_type == 'Release' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'linux/arm64':
                         skip = False
                 if skip:
                     continue
 
             # MacOS:
             # - Debug and no Unity on macos/arm64.
-            if os["distro_name"] == "macos" and not (
-                build_type == "Debug"
-                and "-Dunity=OFF" in cmake_args
-                and architecture["platform"] == "macos/arm64"
-            ):
+            if os['distro_name'] == 'macos' and not (build_type == 'Debug' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'macos/arm64'):
                 continue
 
             # Windows:
             # - Release and Unity on windows/amd64.
-            if os["distro_name"] == "windows" and not (
-                build_type == "Release"
-                and "-Dunity=ON" in cmake_args
-                and architecture["platform"] == "windows/amd64"
-            ):
+            if os['distro_name'] == 'windows' and not (build_type == 'Release' and '-Dunity=ON' in cmake_args and architecture['platform'] == 'windows/amd64'):
                 continue
 
+
         # Additional CMake arguments.
-        cmake_args = f"{cmake_args} -Dtests=ON -Dwerr=ON -Dxrpld=ON"
-        if not f"{os['compiler_name']}-{os['compiler_version']}" in [
-            "gcc-12",
-            "clang-16",
-        ]:
-            cmake_args = f"{cmake_args} -Dwextra=ON"
-        if build_type == "Release":
-            cmake_args = f"{cmake_args} -Dassert=ON"
+        cmake_args = f'{cmake_args} -Dtests=ON -Dwerr=ON -Dxrpld=ON'
+        if not f'{os['compiler_name']}-{os['compiler_version']}' in ['gcc-12', 'clang-16']:
+            cmake_args = f'{cmake_args} -Dwextra=ON'
+        if build_type == 'Release':
+            cmake_args = f'{cmake_args} -Dassert=ON'
 
         # We skip all RHEL on arm64 due to a build failure that needs further
         # investigation.
-        if os["distro_name"] == "rhel" and architecture["platform"] == "linux/arm64":
+        if os['distro_name'] == 'rhel' and architecture['platform'] == 'linux/arm64':
             continue
 
-        # We skip all clang 20+ on arm64 due to Boost build error.
-        if (
-            f"{os['compiler_name']}-{os['compiler_version']}"
-            in ["clang-20", "clang-21"]
-            and architecture["platform"] == "linux/arm64"
-        ):
+        # We skip all clang-20 on arm64 due to boost 1.86 build error
+        if f'{os['compiler_name']}-{os['compiler_version']}' == 'clang-20' and architecture['platform'] == 'linux/arm64':
             continue
 
         # Enable code coverage for Debian Bookworm using GCC 15 in Debug and no
         # Unity on linux/amd64
-        if (
-            f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-15"
-            and build_type == "Debug"
-            and "-Dunity=OFF" in cmake_args
-            and architecture["platform"] == "linux/amd64"
-        ):
-            cmake_args = f"-Dcoverage=ON -Dcoverage_format=xml -DCODE_COVERAGE_VERBOSE=ON -DCMAKE_C_FLAGS=-O0 -DCMAKE_CXX_FLAGS=-O0 {cmake_args}"
+        if f'{os['compiler_name']}-{os['compiler_version']}' == 'gcc-15' and build_type == 'Debug' and '-Dunity=OFF' in cmake_args and architecture['platform'] == 'linux/amd64':
+            cmake_args = f'-Dcoverage=ON -Dcoverage_format=xml -DCODE_COVERAGE_VERBOSE=ON -DCMAKE_C_FLAGS=-O0 -DCMAKE_CXX_FLAGS=-O0 {cmake_args}'
+            cmake_target = 'coverage'
+            build_only = True
 
         # Generate a unique name for the configuration, e.g. macos-arm64-debug
         # or debian-bookworm-gcc-12-amd64-release-unity.
-        config_name = os["distro_name"]
-        if (n := os["distro_version"]) != "":
-            config_name += f"-{n}"
-        if (n := os["compiler_name"]) != "":
-            config_name += f"-{n}"
-        if (n := os["compiler_version"]) != "":
-            config_name += f"-{n}"
-        config_name += (
-            f"-{architecture['platform'][architecture['platform'].find('/') + 1 :]}"
-        )
-        config_name += f"-{build_type.lower()}"
-        if "-Dunity=ON" in cmake_args:
-            config_name += "-unity"
+        config_name = os['distro_name']
+        if (n := os['distro_version']) != '':
+            config_name += f'-{n}'
+        if (n := os['compiler_name']) != '':
+            config_name += f'-{n}'
+        if (n := os['compiler_version']) != '':
+            config_name += f'-{n}'
+        config_name += f'-{architecture['platform'][architecture['platform'].find('/')+1:]}'
+        config_name += f'-{build_type.lower()}'
+        if '-Dunity=ON' in cmake_args:
+            config_name += '-unity'
 
         # Add the configuration to the list, with the most unique fields first,
         # so that they are easier to identify in the GitHub Actions UI, as long
         # names get truncated.
-        configurations.append(
-            {
-                "config_name": config_name,
-                "cmake_args": cmake_args,
-                "cmake_target": cmake_target,
-                "build_only": build_only,
-                "build_type": build_type,
-                "os": os,
-                "architecture": architecture,
-            }
-        )
+        configurations.append({
+            'config_name': config_name,
+            'cmake_args': cmake_args,
+            'cmake_target': cmake_target,
+            'build_only': build_only,
+            'build_type': build_type,
+            'os': os,
+            'architecture': architecture,
+        })
 
     return configurations
 
 
 def read_config(file: Path) -> Config:
     config = json.loads(file.read_text())
-    if (
-        config["architecture"] is None
-        or config["os"] is None
-        or config["build_type"] is None
-        or config["cmake_args"] is None
-    ):
-        raise Exception("Invalid configuration file.")
+    if config['architecture'] is None or config['os'] is None or config['build_type'] is None or config['cmake_args'] is None:
+        raise Exception('Invalid configuration file.')
 
     return Config(**config)
 
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     parser = argparse.ArgumentParser()
-    parser.add_argument(
-        "-a",
-        "--all",
-        help="Set to generate all configurations (generally used when merging a PR) or leave unset to generate a subset of configurations (generally used when committing to a PR).",
-        action="store_true",
-    )
-    parser.add_argument(
-        "-c",
-        "--config",
-        help="Path to the JSON file containing the strategy matrix configurations.",
-        required=False,
-        type=Path,
-    )
+    parser.add_argument('-a', '--all', help='Set to generate all configurations (generally used when merging a PR) or leave unset to generate a subset of configurations (generally used when committing to a PR).', action="store_true")
+    parser.add_argument('-c', '--config', help='Path to the JSON file containing the strategy matrix configurations.', required=False, type=Path)
     args = parser.parse_args()
 
     matrix = []
-    if args.config is None or args.config == "":
-        matrix += generate_strategy_matrix(
-            args.all, read_config(THIS_DIR / "linux.json")
-        )
-        matrix += generate_strategy_matrix(
-            args.all, read_config(THIS_DIR / "macos.json")
-        )
-        matrix += generate_strategy_matrix(
-            args.all, read_config(THIS_DIR / "windows.json")
-        )
+    if args.config is None or args.config == '':
+        matrix += generate_strategy_matrix(args.all, read_config(THIS_DIR / "linux.json"))
+        matrix += generate_strategy_matrix(args.all, read_config(THIS_DIR / "macos.json"))
+        matrix += generate_strategy_matrix(args.all, read_config(THIS_DIR / "windows.json"))
     else:
         matrix += generate_strategy_matrix(args.all, read_config(args.config))
 
     # Generate the strategy matrix.
-    print(f"matrix={json.dumps({'include': matrix})}")
+    print(f'matrix={json.dumps({"include": matrix})}')

.github/scripts/strategy-matrix/linux.json

@@ -15,196 +15,168 @@
       "distro_version": "bookworm",
       "compiler_name": "gcc",
       "compiler_version": "12",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "gcc",
       "compiler_version": "13",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "gcc",
       "compiler_version": "15",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "clang",
       "compiler_version": "16",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "clang",
       "compiler_version": "17",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "clang",
       "compiler_version": "18",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "clang",
       "compiler_version": "19",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "debian",
       "distro_version": "bookworm",
       "compiler_name": "clang",
       "compiler_version": "20",
-      "image_sha": "0525eae"
-    },
-    {
-      "distro_name": "debian",
-      "distro_version": "trixie",
-      "compiler_name": "gcc",
-      "compiler_version": "14",
-      "image_sha": "0525eae"
-    },
-    {
-      "distro_name": "debian",
-      "distro_version": "trixie",
-      "compiler_name": "gcc",
-      "compiler_version": "15",
-      "image_sha": "0525eae"
-    },
-    {
-      "distro_name": "debian",
-      "distro_version": "trixie",
-      "compiler_name": "clang",
-      "compiler_version": "20",
-      "image_sha": "0525eae"
-    },
-    {
-      "distro_name": "debian",
-      "distro_version": "trixie",
-      "compiler_name": "clang",
-      "compiler_version": "21",
-      "image_sha": "0525eae"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "8",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "8",
       "compiler_name": "clang",
       "compiler_version": "any",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "gcc",
       "compiler_version": "12",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "gcc",
       "compiler_version": "13",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "9",
       "compiler_name": "clang",
       "compiler_version": "any",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "10",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "rhel",
       "distro_version": "10",
       "compiler_name": "clang",
       "compiler_version": "any",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "jammy",
       "compiler_name": "gcc",
       "compiler_version": "12",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "noble",
       "compiler_name": "gcc",
       "compiler_version": "13",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "noble",
       "compiler_name": "gcc",
       "compiler_version": "14",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "noble",
       "compiler_name": "clang",
       "compiler_version": "16",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "noble",
       "compiler_name": "clang",
       "compiler_version": "17",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "noble",
       "compiler_name": "clang",
       "compiler_version": "18",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     },
     {
       "distro_name": "ubuntu",
       "distro_version": "noble",
       "compiler_name": "clang",
       "compiler_version": "19",
-      "image_sha": "e1782cd"
+      "image_sha": "97ba375"
     }
   ],
   "build_type": ["Debug", "Release"],

.github/workflows/on-pr.yml

@@ -50,9 +50,7 @@ jobs:
           files: |
             # These paths are unique to `on-pr.yml`.
             .github/scripts/levelization/**
-            .github/scripts/rename/**
             .github/workflows/reusable-check-levelization.yml
-            .github/workflows/reusable-check-rename.yml
             .github/workflows/reusable-notify-clio.yml
             .github/workflows/on-pr.yml
 
@@ -100,11 +98,6 @@ jobs:
     if: ${{ needs.should-run.outputs.go == 'true' }}
     uses: ./.github/workflows/reusable-check-levelization.yml
 
-  check-rename:
-    needs: should-run
-    if: ${{ needs.should-run.outputs.go == 'true' }}
-    uses: ./.github/workflows/reusable-check-rename.yml
-
   build-test:
     needs: should-run
     if: ${{ needs.should-run.outputs.go == 'true' }}
@@ -122,7 +115,7 @@ jobs:
     needs:
       - should-run
       - build-test
-    if: ${{ needs.should-run.outputs.go == 'true' && (startsWith(github.base_ref, 'release') || github.base_ref == 'master') }}
+    if: ${{ needs.should-run.outputs.go == 'true' && contains(fromJSON('["release", "master"]'), github.ref_name) }}
     uses: ./.github/workflows/reusable-notify-clio.yml
     secrets:
       clio_notify_token: ${{ secrets.CLIO_NOTIFY_TOKEN }}

.github/workflows/on-trigger.yml

@@ -14,7 +14,9 @@ on:
       - "master"
     paths:
       # These paths are unique to `on-trigger.yml`.
+      - ".github/workflows/reusable-check-missing-commits.yml"
       - ".github/workflows/on-trigger.yml"
+      - ".github/workflows/publish-docs.yml"
 
       # Keep the paths below in sync with those in `on-pr.yml`.
       - ".github/actions/build-deps/**"
@@ -61,6 +63,10 @@ defaults:
     shell: bash
 
 jobs:
+  check-missing-commits:
+    if: ${{ github.event_name == 'push' && github.ref_type == 'branch' && contains(fromJSON('["develop", "release"]'), github.ref_name) }}
+    uses: ./.github/workflows/reusable-check-missing-commits.yml
+
   build-test:
     uses: ./.github/workflows/reusable-build-test.yml
     strategy:

.github/workflows/reusable-build-test-config.yml

@@ -7,23 +7,19 @@ on:
         description: "The directory where to build."
         required: true
         type: string
-
       build_only:
         description: 'Whether to only build or to build and test the code ("true", "false").'
         required: true
         type: boolean
-
       build_type:
         description: 'The build type to use ("Debug", "Release").'
         type: string
         required: true
-
       cmake_args:
         description: "Additional arguments to pass to CMake."
         required: false
         type: string
         default: ""
-
       cmake_target:
         description: "The CMake target to build."
         type: string
@@ -33,7 +29,6 @@ on:
         description: Runner to run the job on as a JSON string
         required: true
         type: string
-
       image:
         description: "The image to run in (leave empty to run natively)"
         required: true
@@ -55,159 +50,28 @@ on:
         description: "The Codecov token to use for uploading coverage reports."
         required: true
 
-defaults:
-  run:
-    shell: bash
-
 jobs:
-  build-and-test:
-    name: ${{ inputs.config_name }}
-    runs-on: ${{ fromJSON(inputs.runs_on) }}
-    container: ${{ inputs.image != '' && inputs.image || null }}
-    timeout-minutes: 60
-    env:
-      ENABLED_VOIDSTAR: ${{ contains(inputs.cmake_args, '-Dvoidstar=ON') }}
-      ENABLED_COVERAGE: ${{ contains(inputs.cmake_args, '-Dcoverage=ON') }}
-    steps:
-      - name: Cleanup workspace (macOS and Windows)
-        if: ${{ runner.os == 'macOS' || runner.os == 'Windows' }}
-        uses: XRPLF/actions/.github/actions/cleanup-workspace@01b244d2718865d427b499822fbd3f15e7197fcc
+  build:
+    uses: ./.github/workflows/reusable-build.yml
+    with:
+      build_dir: ${{ inputs.build_dir }}
+      build_type: ${{ inputs.build_type }}
+      cmake_args: ${{ inputs.cmake_args }}
+      cmake_target: ${{ inputs.cmake_target }}
+      runs_on: ${{ inputs.runs_on }}
+      image: ${{ inputs.image }}
+      config_name: ${{ inputs.config_name }}
+      nproc_subtract: ${{ inputs.nproc_subtract }}
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
-      - name: Checkout repository
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
-
-      - name: Prepare runner
-        uses: XRPLF/actions/.github/actions/prepare-runner@99685816bb60a95a66852f212f382580e180df3a
-        with:
-          disable_ccache: false
-
-      - name: Print build environment
-        uses: ./.github/actions/print-env
-
-      - name: Get number of processors
-        uses: XRPLF/actions/.github/actions/get-nproc@046b1620f6bfd6cd0985dc82c3df02786801fe0a
-        id: nproc
-        with:
-          subtract: ${{ inputs.nproc_subtract }}
-
-      - name: Setup Conan
-        uses: ./.github/actions/setup-conan
-
-      - name: Build dependencies
-        uses: ./.github/actions/build-deps
-        with:
-          build_dir: ${{ inputs.build_dir }}
-          build_nproc: ${{ steps.nproc.outputs.nproc }}
-          build_type: ${{ inputs.build_type }}
-          # Set the verbosity to "quiet" for Windows to avoid an excessive
-          # amount of logs. For other OSes, the "verbose" logs are more useful.
-          log_verbosity: ${{ runner.os == 'Windows' && 'quiet' || 'verbose' }}
-
-      - name: Configure CMake
-        working-directory: ${{ inputs.build_dir }}
-        env:
-          BUILD_TYPE: ${{ inputs.build_type }}
-          CMAKE_ARGS: ${{ inputs.cmake_args }}
-        run: |
-          cmake \
-            -G '${{ runner.os == 'Windows' && 'Visual Studio 17 2022' || 'Ninja' }}' \
-            -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake \
-            -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
-            ${CMAKE_ARGS} \
-            ..
-
-      - name: Build the binary
-        working-directory: ${{ inputs.build_dir }}
-        env:
-          BUILD_NPROC: ${{ steps.nproc.outputs.nproc }}
-          BUILD_TYPE: ${{ inputs.build_type }}
-          CMAKE_TARGET: ${{ inputs.cmake_target }}
-        run: |
-          cmake \
-            --build . \
-            --config "${BUILD_TYPE}" \
-            --parallel "${BUILD_NPROC}" \
-            --target "${CMAKE_TARGET}"
-
-      - name: Upload rippled artifact (Linux)
-        if: ${{ github.repository_owner == 'XRPLF' && runner.os == 'Linux' }}
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-        env:
-          BUILD_DIR: ${{ inputs.build_dir }}
-        with:
-          name: rippled-${{ inputs.config_name }}
-          path: ${{ env.BUILD_DIR }}/rippled
-          retention-days: 3
-          if-no-files-found: error
-
-      - name: Check linking (Linux)
-        if: ${{ runner.os == 'Linux' }}
-        working-directory: ${{ inputs.build_dir }}
-        run: |
-          ldd ./rippled
-          if [ "$(ldd ./rippled | grep -E '(libstdc\+\+|libgcc)' | wc -l)" -eq 0 ]; then
-            echo 'The binary is statically linked.'
-          else
-            echo 'The binary is dynamically linked.'
-            exit 1
-          fi
-
-      - name: Verify presence of instrumentation (Linux)
-        if: ${{ runner.os == 'Linux' && env.ENABLED_VOIDSTAR == 'true' }}
-        working-directory: ${{ inputs.build_dir }}
-        run: |
-          ./rippled --version | grep libvoidstar
-
-      - name: Run the separate tests
-        if: ${{ !inputs.build_only }}
-        working-directory: ${{ inputs.build_dir }}
-        # Windows locks some of the build files while running tests, and parallel jobs can collide
-        env:
-          BUILD_TYPE: ${{ inputs.build_type }}
-          PARALLELISM: ${{ runner.os == 'Windows' && '1' || steps.nproc.outputs.nproc }}
-        run: |
-          ctest \
-            --output-on-failure \
-            -C "${BUILD_TYPE}" \
-            -j "${PARALLELISM}"
-
-      - name: Run the embedded tests
-        if: ${{ !inputs.build_only }}
-        working-directory: ${{ runner.os == 'Windows' && format('{0}/{1}', inputs.build_dir, inputs.build_type) || inputs.build_dir }}
-        env:
-          BUILD_NPROC: ${{ steps.nproc.outputs.nproc }}
-        run: |
-          ./rippled --unittest --unittest-jobs "${BUILD_NPROC}"
-
-      - name: Debug failure (Linux)
-        if: ${{ failure() && runner.os == 'Linux' && !inputs.build_only }}
-        run: |
-          echo "IPv4 local port range:"
-          cat /proc/sys/net/ipv4/ip_local_port_range
-          echo "Netstat:"
-          netstat -an
-
-      - name: Prepare coverage report
-        if: ${{ !inputs.build_only && env.ENABLED_COVERAGE == 'true' }}
-        working-directory: ${{ inputs.build_dir }}
-        env:
-          BUILD_NPROC: ${{ steps.nproc.outputs.nproc }}
-          BUILD_TYPE: ${{ inputs.build_type }}
-        run: |
-          cmake \
-            --build . \
-            --config "${BUILD_TYPE}" \
-            --parallel "${BUILD_NPROC}" \
-            --target coverage
-
-      - name: Upload coverage report
-        if: ${{ github.repository_owner == 'XRPLF' && !inputs.build_only && env.ENABLED_COVERAGE == 'true' }}
-        uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
-        with:
-          disable_search: true
-          disable_telem: true
-          fail_ci_if_error: true
-          files: ${{ inputs.build_dir }}/coverage.xml
-          plugins: noop
-          token: ${{ secrets.CODECOV_TOKEN }}
-          verbose: true
+  test:
+    needs: build
+    uses: ./.github/workflows/reusable-test.yml
+    with:
+      run_tests: ${{ !inputs.build_only }}
+      verify_voidstar: ${{ contains(inputs.cmake_args, '-Dvoidstar=ON') }}
+      runs_on: ${{ inputs.runs_on }}
+      image: ${{ inputs.image }}
+      config_name: ${{ inputs.config_name }}
+      nproc_subtract: ${{ inputs.nproc_subtract }}

.github/workflows/reusable-build.yml

@@ -0,0 +1,154 @@
+name: Build rippled
+
+on:
+  workflow_call:
+    inputs:
+      build_dir:
+        description: "The directory where to build."
+        required: true
+        type: string
+      build_type:
+        description: 'The build type to use ("Debug", "Release").'
+        required: true
+        type: string
+      cmake_args:
+        description: "Additional arguments to pass to CMake."
+        required: true
+        type: string
+      cmake_target:
+        description: "The CMake target to build."
+        required: true
+        type: string
+
+      runs_on:
+        description: Runner to run the job on as a JSON string
+        required: true
+        type: string
+      image:
+        description: "The image to run in (leave empty to run natively)"
+        required: true
+        type: string
+
+      config_name:
+        description: "The name of the configuration."
+        required: true
+        type: string
+
+      nproc_subtract:
+        description: "The number of processors to subtract when calculating parallelism."
+        required: true
+        type: number
+
+    secrets:
+      CODECOV_TOKEN:
+        description: "The Codecov token to use for uploading coverage reports."
+        required: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  build:
+    name: Build ${{ inputs.config_name }}
+    runs-on: ${{ fromJSON(inputs.runs_on) }}
+    container: ${{ inputs.image != '' && inputs.image || null }}
+    timeout-minutes: 60
+    steps:
+      - name: Cleanup workspace
+        if: ${{ runner.os == 'macOS' }}
+        uses: XRPLF/actions/.github/actions/cleanup-workspace@3f044c7478548e3c32ff68980eeb36ece02b364e
+
+      - name: Checkout repository
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+
+      - name: Prepare runner
+        uses: XRPLF/actions/.github/actions/prepare-runner@99685816bb60a95a66852f212f382580e180df3a
+        with:
+          disable_ccache: false
+
+      - name: Print build environment
+        uses: ./.github/actions/print-env
+
+      - name: Get number of processors
+        uses: XRPLF/actions/.github/actions/get-nproc@046b1620f6bfd6cd0985dc82c3df02786801fe0a
+        id: nproc
+        with:
+          subtract: ${{ inputs.nproc_subtract }}
+
+      - name: Setup Conan
+        uses: ./.github/actions/setup-conan
+
+      - name: Build dependencies
+        uses: ./.github/actions/build-deps
+        with:
+          build_dir: ${{ inputs.build_dir }}
+          build_nproc: ${{ steps.nproc.outputs.nproc }}
+          build_type: ${{ inputs.build_type }}
+          # Set the verbosity to "quiet" for Windows to avoid an excessive
+          # amount of logs. For other OSes, the "verbose" logs are more useful.
+          log_verbosity: ${{ runner.os == 'Windows' && 'quiet' || 'verbose' }}
+
+      - name: Configure CMake
+        shell: bash
+        working-directory: ${{ inputs.build_dir }}
+        env:
+          BUILD_TYPE: ${{ inputs.build_type }}
+          CMAKE_ARGS: ${{ inputs.cmake_args }}
+        run: |
+          cmake \
+            -G '${{ runner.os == 'Windows' && 'Visual Studio 17 2022' || 'Ninja' }}' \
+            -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake \
+            -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
+            ${CMAKE_ARGS} \
+            ..
+
+      - name: Build the binary
+        shell: bash
+        working-directory: ${{ inputs.build_dir }}
+        env:
+          BUILD_NPROC: ${{ steps.nproc.outputs.nproc }}
+          BUILD_TYPE: ${{ inputs.build_type }}
+          CMAKE_TARGET: ${{ inputs.cmake_target }}
+        run: |
+          cmake \
+            --build . \
+            --config "${BUILD_TYPE}" \
+            --parallel ${BUILD_NPROC} \
+            --target "${CMAKE_TARGET}"
+
+      - name: Put built binaries in one location
+        shell: bash
+        working-directory: ${{ inputs.build_dir }}
+        env:
+          BUILD_TYPE_DIR: ${{ runner.os == 'Windows' && inputs.build_type || '' }}
+          CMAKE_TARGET: ${{ inputs.cmake_target }}
+        run: |
+          mkdir -p ./binaries/doctest/
+
+          cp ./${BUILD_TYPE_DIR}/rippled* ./binaries/
+          if [ "${CMAKE_TARGET}" != 'coverage' ]; then
+            cp ./src/tests/libxrpl/${BUILD_TYPE_DIR}/xrpl.test.* ./binaries/doctest/
+          fi
+
+      - name: Upload rippled artifact
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        env:
+          BUILD_DIR: ${{ inputs.build_dir }}
+        with:
+          name: rippled-${{ inputs.config_name }}
+          path: ${{ env.BUILD_DIR }}/binaries/
+          retention-days: 3
+          if-no-files-found: error
+
+      - name: Upload coverage report
+        if: ${{ github.repository_owner == 'XRPLF' && inputs.cmake_target == 'coverage' }}
+        uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
+        with:
+          disable_search: true
+          disable_telem: true
+          fail_ci_if_error: true
+          files: ${{ inputs.build_dir }}/coverage.xml
+          plugins: noop
+          token: ${{ secrets.CODECOV_TOKEN }}
+          verbose: true

.github/workflows/reusable-check-missing-commits.yml

@@ -0,0 +1,62 @@
+# This workflow checks that all commits in the "master" branch are also in the
+# "release" and "develop" branches, and that all commits in the "release" branch
+# are also in the "develop" branch.
+name: Check for missing commits
+
+# This workflow can only be triggered by other workflows.
+on: workflow_call
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-missing-commits
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          fetch-depth: 0
+      - name: Check for missing commits
+        env:
+          MESSAGE: |
+
+            If you are reading this, then the commits indicated above are missing
+            from the "develop" and/or "release" branch. Do a reverse-merge as soon
+            as possible. See CONTRIBUTING.md for instructions.
+        run: |
+          set -o pipefail
+          # Branches are ordered by how "canonical" they are. Every commit in one
+          # branch should be in all the branches behind it.
+          order=(master release develop)
+          branches=()
+          for branch in "${order[@]}"; do
+            # Check that the branches exist so that this job will work on forked
+            # repos, which don't necessarily have master and release branches.
+            echo "Checking if ${branch} exists."
+            if git ls-remote --exit-code --heads origin \
+              refs/heads/${branch} > /dev/null; then
+              branches+=(origin/${branch})
+            fi
+          done
+
+          prior=()
+          for branch in "${branches[@]}"; do
+            if [[ ${#prior[@]} -ne 0 ]]; then
+              echo "Checking ${prior[@]} for commits missing from ${branch}."
+              git log --oneline --no-merges "${prior[@]}" \
+                ^$branch | tee -a "missing-commits.txt"
+              echo
+            fi
+            prior+=("${branch}")
+          done
+
+          if [[ $(cat missing-commits.txt | wc -l) -ne 0 ]]; then
+            echo "${MESSAGE}"
+            exit 1
+          fi

.github/workflows/reusable-check-rename.yml

@@ -1,46 +0,0 @@
-# This workflow checks if the codebase is properly renamed, see more info in
-# .github/scripts/rename/README.md.
-name: Check rename
-
-# This workflow can only be triggered by other workflows.
-on: workflow_call
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}-rename
-  cancel-in-progress: true
-
-defaults:
-  run:
-    shell: bash
-
-jobs:
-  rename:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
-      - name: Check definitions
-        run: .github/scripts/rename/definitions.sh .
-      - name: Check copyright notices
-        run: .github/scripts/rename/copyright.sh .
-      - name: Check CMake configs
-        run: .github/scripts/rename/cmake.sh .
-      - name: Check for differences
-        env:
-          MESSAGE: |
-
-            One or more files contain changes that do not adhere to new naming
-            conventions.
-
-            Run the scripts in '.github/scripts/rename/' in your repo, commit
-            and push the changes. See .github/scripts/rename/README.md for
-            more info.
-        run: |
-          DIFF=$(git status --porcelain)
-          if [ -n "${DIFF}" ]; then
-            # Print the differences to give the contributor a hint about what to
-            # expect when running the renaming scripts on their own machine.
-            git diff
-            echo "${MESSAGE}"
-            exit 1
-          fi

.github/workflows/reusable-strategy-matrix.yml

@@ -18,10 +18,6 @@ on:
         description: "The generated strategy matrix."
         value: ${{ jobs.generate-matrix.outputs.matrix }}
 
-defaults:
-  run:
-    shell: bash
-
 jobs:
   generate-matrix:
     runs-on: ubuntu-latest

.github/workflows/reusable-test.yml

@@ -0,0 +1,111 @@
+name: Test rippled
+
+on:
+  workflow_call:
+    inputs:
+      verify_voidstar:
+        description: "Whether to verify the presence of voidstar instrumentation."
+        required: true
+        type: boolean
+      run_tests:
+        description: "Whether to run unit tests"
+        required: true
+        type: boolean
+
+      runs_on:
+        description: Runner to run the job on as a JSON string
+        required: true
+        type: string
+      image:
+        description: "The image to run in (leave empty to run natively)"
+        required: true
+        type: string
+
+      config_name:
+        description: "The name of the configuration."
+        required: true
+        type: string
+
+      nproc_subtract:
+        description: "The number of processors to subtract when calculating parallelism."
+        required: true
+        type: number
+
+jobs:
+  test:
+    name: Test ${{ inputs.config_name }}
+    runs-on: ${{ fromJSON(inputs.runs_on) }}
+    container: ${{ inputs.image != '' && inputs.image || null }}
+    timeout-minutes: 30
+    steps:
+      - name: Cleanup workspace
+        if: ${{ runner.os == 'macOS' }}
+        uses: XRPLF/actions/.github/actions/cleanup-workspace@3f044c7478548e3c32ff68980eeb36ece02b364e
+
+      - name: Get number of processors
+        uses: XRPLF/actions/.github/actions/get-nproc@046b1620f6bfd6cd0985dc82c3df02786801fe0a
+        id: nproc
+        with:
+          subtract: ${{ inputs.nproc_subtract }}
+
+      - name: Download rippled artifact
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        with:
+          name: rippled-${{ inputs.config_name }}
+
+      - name: Make binary executable (Linux and macOS)
+        shell: bash
+        if: ${{ runner.os == 'Linux' || runner.os == 'macOS' }}
+        run: |
+          chmod +x ./rippled
+
+      - name: Check linking (Linux)
+        if: ${{ runner.os == 'Linux' }}
+        shell: bash
+        run: |
+          ldd ./rippled
+          if [ "$(ldd ./rippled | grep -E '(libstdc\+\+|libgcc)' | wc -l)" -eq 0 ]; then
+            echo 'The binary is statically linked.'
+          else
+            echo 'The binary is dynamically linked.'
+            exit 1
+          fi
+
+      - name: Verifying presence of instrumentation
+        if: ${{ inputs.verify_voidstar }}
+        shell: bash
+        run: |
+          ./rippled --version | grep libvoidstar
+
+      - name: Run the embedded tests
+        if: ${{ inputs.run_tests }}
+        shell: bash
+        env:
+          BUILD_NPROC: ${{ steps.nproc.outputs.nproc }}
+        run: |
+          ./rippled --unittest --unittest-jobs ${BUILD_NPROC}
+
+      - name: Run the separate tests
+        if: ${{ inputs.run_tests }}
+        env:
+          EXT: ${{ runner.os == 'Windows' && '.exe' || '' }}
+        shell: bash
+        run: |
+          for test_file in ./doctest/*${EXT}; do
+            echo "Executing $test_file"
+            chmod +x "$test_file"
+            if [[ "${{ runner.os }}" == "Windows" && "$test_file" == "./doctest/xrpl.test.net.exe" ]]; then
+              echo "Skipping $test_file on Windows"
+            else
+              "$test_file"
+            fi
+          done
+
+      - name: Debug failure (Linux)
+        if: ${{ failure() && runner.os == 'Linux' && inputs.run_tests }}
+        shell: bash
+        run: |
+          echo "IPv4 local port range:"
+          cat /proc/sys/net/ipv4/ip_local_port_range
+          echo "Netstat:"
+          netstat -an

.github/workflows/upload-conan-deps.yml

@@ -40,10 +40,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-defaults:
-  run:
-    shell: bash
-
 jobs:
   # Generate the strategy matrix to be used by the following job.
   generate-matrix:
@@ -62,9 +58,9 @@ jobs:
     runs-on: ${{ matrix.architecture.runner }}
     container: ${{ contains(matrix.architecture.platform, 'linux') && format('ghcr.io/xrplf/ci/{0}-{1}:{2}-{3}-sha-{4}', matrix.os.distro_name, matrix.os.distro_version, matrix.os.compiler_name, matrix.os.compiler_version, matrix.os.image_sha) || null }}
     steps:
-      - name: Cleanup workspace (macOS and Windows)
-        if: ${{ runner.os == 'macOS' || runner.os == 'Windows' }}
-        uses: XRPLF/actions/.github/actions/cleanup-workspace@01b244d2718865d427b499822fbd3f15e7197fcc
+      - name: Cleanup workspace
+        if: ${{ runner.os == 'macOS' }}
+        uses: XRPLF/actions/.github/actions/cleanup-workspace@3f044c7478548e3c32ff68980eeb36ece02b364e
 
       - name: Checkout repository
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0

.pre-commit-config.yaml

@@ -31,13 +31,9 @@ repos:
     hooks:
       - id: prettier
 
-  - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 25.11.0
-    hooks:
-      - id: black
-
 exclude: |
   (?x)^(
       external/.*|
-      .github/scripts/levelization/results/.*\.txt
+      .github/scripts/levelization/results/.*\.txt|
+      conan\.lock
   )$

BUILD.md

@@ -88,13 +88,6 @@ These instructions assume a basic familiarity with Conan and CMake. If you are
 unfamiliar with Conan, then please read [this crash course](./docs/build/conan.md) or the official
 [Getting Started][3] walkthrough.
 
-#### Conan lockfile
-
-To achieve reproducible dependencies, we use a [Conan lockfile](https://docs.conan.io/2/tutorial/versioning/lockfiles.html),
-which has to be updated every time dependencies change.
-
-Please see the [instructions on how to regenerate the lockfile](conan/lockfile/README.md).
-
 #### Default profile
 
 We recommend that you import the provided `conan/profiles/default` profile:
@@ -145,12 +138,10 @@ cd external
 git init
 git remote add origin git@github.com:XRPLF/conan-center-index.git
 git sparse-checkout init
-git sparse-checkout set recipes/ed25519
-git sparse-checkout add recipes/snappy
+git sparse-checkout set recipes/snappy
 git sparse-checkout add recipes/soci
 git fetch origin master
 git checkout master
-conan export --version 2015.03 recipes/ed25519/all
 conan export --version 1.1.10 recipes/snappy/all
 conan export --version 4.0.3 recipes/soci/all
 rm -rf .git
@@ -164,8 +155,7 @@ the new recipe will be automatically pulled from the official Conan Center.
 
 > [!NOTE]
 > You might need to add `--lockfile=""` to your `conan install` command
-> to avoid automatic use of the existing `conan.lock` file when you run
-> `conan export` manually on your machine
+> to avoid automatic use of the existing `conan.lock` file when you run `conan export` manually on your machine
 
 ### Conan profile tweaks
 
@@ -460,6 +450,33 @@ tools.build:cxxflags=['-DBOOST_ASIO_DISABLE_CONCEPTS']
    The location of `rippled` binary in your build directory depends on your
    CMake generator. Pass `--help` to see the rest of the command line options.
 
+#### Conan lockfile
+
+To achieve reproducible dependencies, we use [Conan lockfile](https://docs.conan.io/2/tutorial/versioning/lockfiles.html).
+
+The `conan.lock` file in the repository contains a "snapshot" of the current dependencies.
+It is implicitly used when running `conan` commands, you don't need to specify it.
+
+You have to update this file every time you add a new dependency or change a revision or version of an existing dependency.
+
+> [!NOTE]
+> Conan uses local cache by default when creating a lockfile.
+>
+> To ensure, that lockfile creation works the same way on all developer machines, you should clear the local cache before creating a new lockfile.
+
+To create a new lockfile, run the following commands in the repository root:
+
+```bash
+conan remove '*' --confirm
+rm conan.lock
+# This ensure that xrplf remote is the first to be consulted
+conan remote add --force --index 0 xrplf https://conan.ripplex.io
+conan lock create . -o '&:jemalloc=True' -o '&:rocksdb=True'
+```
+
+> [!NOTE]
+> If some dependencies are exclusive for some OS, you may need to run the last command for them adding `--profile:all <PROFILE>`.
+
 ## Coverage report
 
 The coverage report is intended for developers using compilers GCC
@@ -478,18 +495,18 @@ A coverage report is created when the following steps are completed, in order:
 
 1. `rippled` binary built with instrumentation data, enabled by the `coverage`
    option mentioned above
-2. completed one or more run of the unit tests, which populates coverage capture data
+2. completed run of unit tests, which populates coverage capture data
 3. completed run of the `gcovr` tool (which internally invokes either `gcov` or `llvm-cov`)
    to assemble both instrumentation data and the coverage capture data into a coverage report
 
-The last step of the above is automated into a single target `coverage`. The instrumented
+The above steps are automated into a single target `coverage`. The instrumented
 `rippled` binary can also be used for regular development or testing work, at
 the cost of extra disk space utilization and a small performance hit
-(to store coverage capture data). Since `rippled` binary is simply a dependency of the
-coverage report target, it is possible to re-run the `coverage` target without
-rebuilding the `rippled` binary. Note, running of the unit tests before the `coverage`
-target is left to the developer. Each such run will append to the coverage data
-collected in the build directory.
+(to store coverage capture). In case of a spurious failure of unit tests, it is
+possible to re-run the `coverage` target without rebuilding the `rippled` binary
+(since it is simply a dependency of the coverage report target). It is also possible
+to select only specific tests for the purpose of the coverage report, by setting
+the `coverage_test` variable in `cmake`
 
 The default coverage report format is `html-details`, but the user
 can override it to any of the formats listed in `Builds/CMake/CodeCoverage.cmake`
@@ -498,6 +515,11 @@ to generate more than one format at a time by setting the `coverage_extra_args`
 variable in `cmake`. The specific command line used to run the `gcovr` tool will be
 displayed if the `CODE_COVERAGE_VERBOSE` variable is set.
 
+By default, the code coverage tool runs parallel unit tests with `--unittest-jobs`
+set to the number of available CPU cores. This may cause spurious test
+errors on Apple. Developers can override the number of unit test jobs with
+the `coverage_test_parallelism` variable in `cmake`.
+
 Example use with some cmake variables set:
 
 ```
@@ -568,7 +590,7 @@ you might have generated CMake files for a different `build_type` than the
 `CMAKE_BUILD_TYPE` you passed to Conan.
 
 ```
-/rippled/.build/pb-xrpl.libpb/xrpl/proto/xrpl.pb.h:10:10: fatal error: 'google/protobuf/port_def.inc' file not found
+/rippled/.build/pb-xrpl.libpb/xrpl/proto/ripple.pb.h:10:10: fatal error: 'google/protobuf/port_def.inc' file not found
    10 | #include <google/protobuf/port_def.inc>
       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 1 error generated.

CMakeLists.txt

@@ -49,7 +49,7 @@ if(Git_FOUND)
 endif() #git
 
 if(thread_safety_analysis)
-  add_compile_options(-Wthread-safety -D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS -DXRPL_ENABLE_THREAD_SAFETY_ANNOTATIONS)
+  add_compile_options(-Wthread-safety -D_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS -DRIPPLE_ENABLE_THREAD_SAFETY_ANNOTATIONS)
   add_compile_options("-stdlib=libc++")
   add_link_options("-stdlib=libc++")
 endif()
@@ -62,9 +62,9 @@ if (target)
   message (FATAL_ERROR "The target option has been removed - use native cmake options to control build")
 endif ()
 
-include(XrplSanity)
-include(XrplVersion)
-include(XrplSettings)
+include(RippledSanity)
+include(RippledVersion)
+include(RippledSettings)
 # this check has to remain in the top-level cmake
 # because of the early return statement
 if (packages_only)
@@ -73,11 +73,11 @@ if (packages_only)
   endif()
   return ()
 endif ()
-include(XrplCompiler)
-include(XrplInterface)
+include(RippledCompiler)
+include(RippledInterface)
 
 option(only_docs "Include only the docs target?" FALSE)
-include(XrplDocs)
+include(RippledDocs)
 if(only_docs)
   return()
 endif()
@@ -97,6 +97,7 @@ set(SECP256K1_BUILD_CTIME_TESTS FALSE)
 set(SECP256K1_BUILD_EXAMPLES FALSE)
 add_subdirectory(external/secp256k1)
 add_library(secp256k1::secp256k1 ALIAS secp256k1)
+add_subdirectory(external/ed25519-donna)
 add_subdirectory(external/antithesis-sdk)
 find_package(gRPC REQUIRED)
 find_package(lz4 REQUIRED)
@@ -111,17 +112,16 @@ option(rocksdb "Enable RocksDB" ON)
 if(rocksdb)
   find_package(RocksDB REQUIRED)
   set_target_properties(RocksDB::rocksdb PROPERTIES
-    INTERFACE_COMPILE_DEFINITIONS XRPL_ROCKSDB_AVAILABLE=1
+    INTERFACE_COMPILE_DEFINITIONS RIPPLE_ROCKSDB_AVAILABLE=1
   )
-  target_link_libraries(xrpl_libs INTERFACE RocksDB::rocksdb)
+  target_link_libraries(ripple_libs INTERFACE RocksDB::rocksdb)
 endif()
 
-find_package(date REQUIRED)
-find_package(ed25519 REQUIRED)
 find_package(nudb REQUIRED)
+find_package(date REQUIRED)
 find_package(xxHash REQUIRED)
 
-target_link_libraries(xrpl_libs INTERFACE
+target_link_libraries(ripple_libs INTERFACE
   ed25519::ed25519
   lz4::lz4
   OpenSSL::Crypto
@@ -139,16 +139,16 @@ elseif(TARGET NuDB::nudb)
 else()
   message(FATAL_ERROR "unknown nudb target")
 endif()
-target_link_libraries(xrpl_libs INTERFACE ${nudb})
+target_link_libraries(ripple_libs INTERFACE ${nudb})
 
 if(coverage)
-  include(XrplCov)
+  include(RippledCov)
 endif()
 
-set(PROJECT_EXPORT_SET XrplExports)
-include(XrplCore)
-include(XrplInstall)
-include(XrplValidatorKeys)
+set(PROJECT_EXPORT_SET RippleExports)
+include(RippledCore)
+include(RippledInstall)
+include(RippledValidatorKeys)
 
 if(tests)
   include(CTest)

LICENSE.md

@@ -1,7 +1,7 @@
 ISC License
 
 Copyright (c) 2011, Arthur Britto, David Schwartz, Jed McCaleb, Vinnie Falco, Bob Way, Eric Lombrozo, Nikolaos D. Bougalis, Howard Hinnant.
-Copyright (c) 2012-2025, the XRP Ledger developers.
+Copyright (c) 2012-2020, the XRP Ledger developers.
 
 Permission to use, copy, modify, and distribute this software for any
 purpose with or without fee is hereby granted, provided that the above

cmake/CMakeFuncs.cmake

@@ -1,3 +1,21 @@
+macro(group_sources_in source_dir curdir)
+  file(GLOB children RELATIVE ${source_dir}/${curdir}
+    ${source_dir}/${curdir}/*)
+  foreach (child ${children})
+    if (IS_DIRECTORY ${source_dir}/${curdir}/${child})
+      group_sources_in(${source_dir} ${curdir}/${child})
+    else()
+      string(REPLACE "/" "\\" groupname ${curdir})
+      source_group(${groupname} FILES
+        ${source_dir}/${curdir}/${child})
+    endif()
+  endforeach()
+endmacro()
+
+macro(group_sources curdir)
+  group_sources_in(${PROJECT_SOURCE_DIR} ${curdir})
+endmacro()
+
 macro (exclude_from_default target_)
   set_target_properties (${target_} PROPERTIES EXCLUDE_FROM_ALL ON)
   set_target_properties (${target_} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON)

cmake/CodeCoverage.cmake

@@ -109,9 +109,6 @@
 #     - add a new function add_code_coverage_to_target
 #     - remove some unused code
 #
-# 2025-11-11, Bronek Kozicki
-#     - make EXECUTABLE and EXECUTABLE_ARGS optional
-#
 # USAGE:
 #
 # 1. Copy this file into your cmake modules path.
@@ -320,10 +317,6 @@ function(setup_target_for_coverage_gcovr)
         set(Coverage_FORMAT xml)
     endif()
 
-    if(NOT DEFINED Coverage_EXECUTABLE AND DEFINED Coverage_EXECUTABLE_ARGS)
-        message(FATAL_ERROR "EXECUTABLE_ARGS must not be set if EXECUTABLE is not set")
-    endif()
-
     if("--output" IN_LIST GCOVR_ADDITIONAL_ARGS)
         message(FATAL_ERROR "Unsupported --output option detected in GCOVR_ADDITIONAL_ARGS! Aborting...")
     else()
@@ -405,18 +398,17 @@ function(setup_target_for_coverage_gcovr)
     endforeach()
 
     # Set up commands which will be run to generate coverage data
-    # If EXECUTABLE is not set, the user is expected to run the tests manually
-    # before running the coverage target NAME
-    if(DEFINED Coverage_EXECUTABLE)
-        set(GCOVR_EXEC_TESTS_CMD
-            ${Coverage_EXECUTABLE} ${Coverage_EXECUTABLE_ARGS}
-        )
-    endif()
+    # Run tests
+    set(GCOVR_EXEC_TESTS_CMD
+        ${Coverage_EXECUTABLE} ${Coverage_EXECUTABLE_ARGS}
+    )
 
     # Create folder
     if(DEFINED GCOVR_CREATE_FOLDER)
         set(GCOVR_FOLDER_CMD
             ${CMAKE_COMMAND} -E make_directory ${GCOVR_CREATE_FOLDER})
+    else()
+        set(GCOVR_FOLDER_CMD echo) # dummy
     endif()
 
     # Running gcovr
@@ -433,13 +425,11 @@ function(setup_target_for_coverage_gcovr)
     if(CODE_COVERAGE_VERBOSE)
         message(STATUS "Executed command report")
 
-        if(NOT "${GCOVR_EXEC_TESTS_CMD}" STREQUAL "")
-            message(STATUS "Command to run tests: ")
-            string(REPLACE ";" " " GCOVR_EXEC_TESTS_CMD_SPACED "${GCOVR_EXEC_TESTS_CMD}")
-            message(STATUS "${GCOVR_EXEC_TESTS_CMD_SPACED}")
-        endif()
+        message(STATUS "Command to run tests: ")
+        string(REPLACE ";" " " GCOVR_EXEC_TESTS_CMD_SPACED "${GCOVR_EXEC_TESTS_CMD}")
+        message(STATUS "${GCOVR_EXEC_TESTS_CMD_SPACED}")
 
-        if(NOT "${GCOVR_FOLDER_CMD}" STREQUAL "")
+        if(NOT GCOVR_FOLDER_CMD STREQUAL "echo")
             message(STATUS "Command to create a folder: ")
             string(REPLACE ";" " " GCOVR_FOLDER_CMD_SPACED "${GCOVR_FOLDER_CMD}")
             message(STATUS "${GCOVR_FOLDER_CMD_SPACED}")

cmake/RippleConfig.cmake

@@ -12,7 +12,7 @@ if (static OR MSVC)
 else ()
   set (Boost_USE_STATIC_RUNTIME OFF)
 endif ()
-find_dependency (Boost
+find_dependency (Boost 1.70
   COMPONENTS
     chrono
     container
@@ -52,3 +52,5 @@ if (TARGET ZLIB::ZLIB)
   set_target_properties(OpenSSL::Crypto PROPERTIES
     INTERFACE_LINK_LIBRARIES ZLIB::ZLIB)
 endif ()
+
+include ("${CMAKE_CURRENT_LIST_DIR}/RippleTargets.cmake")

cmake/RippledCompiler.cmake

@@ -7,9 +7,9 @@
    toolchain file, especially the ABI-impacting ones
 #]=========================================================]
 add_library (common INTERFACE)
-add_library (Xrpl::common ALIAS common)
+add_library (Ripple::common ALIAS common)
 # add a single global dependency on this interface lib
-link_libraries (Xrpl::common)
+link_libraries (Ripple::common)
 set_target_properties (common
   PROPERTIES INTERFACE_POSITION_INDEPENDENT_CODE ON)
 set(CMAKE_CXX_EXTENSIONS OFF)

cmake/RippledCore.cmake

@@ -13,7 +13,7 @@ set_target_properties(xrpl.libpb PROPERTIES UNITY_BUILD OFF)
 target_protobuf_sources(xrpl.libpb xrpl/proto
   LANGUAGE cpp
   IMPORT_DIRS include/xrpl/proto
-  PROTOS include/xrpl/proto/xrpl.proto
+  PROTOS include/xrpl/proto/ripple.proto
 )
 
 file(GLOB_RECURSE protos "include/xrpl/proto/org/*.proto")
@@ -58,10 +58,10 @@ target_link_libraries(xrpl.imports.main
     ed25519::ed25519
     LibArchive::LibArchive
     OpenSSL::Crypto
-    Xrpl::boost
-    Xrpl::libs
-    Xrpl::opts
-    Xrpl::syslibs
+    Ripple::boost
+    Ripple::libs
+    Ripple::opts
+    Ripple::syslibs
     secp256k1::secp256k1
     xrpl.libpb
     xxHash::xxhash
@@ -73,7 +73,10 @@ include(target_link_modules)
 
 # Level 01
 add_module(xrpl beast)
-target_link_libraries(xrpl.libxrpl.beast PUBLIC xrpl.imports.main)
+target_link_libraries(xrpl.libxrpl.beast PUBLIC
+  xrpl.imports.main
+  xrpl.libpb
+)
 
 # Level 02
 add_module(xrpl basics)
@@ -165,14 +168,14 @@ target_link_modules(xrpl PUBLIC
 #     $<INSTALL_INTERFACE:include>)
 
 if(xrpld)
-  add_executable(xrpld)
+  add_executable(rippled)
   if(tests)
-    target_compile_definitions(xrpld PUBLIC ENABLE_TESTS)
-    target_compile_definitions(xrpld PRIVATE
+    target_compile_definitions(rippled PUBLIC ENABLE_TESTS)
+    target_compile_definitions(rippled PRIVATE
                                        UNIT_TEST_REFERENCE_FEE=${UNIT_TEST_REFERENCE_FEE}
     )
   endif()
-  target_include_directories(xrpld
+  target_include_directories(rippled
     PRIVATE
       $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
   )
@@ -180,36 +183,36 @@ if(xrpld)
   file(GLOB_RECURSE sources CONFIGURE_DEPENDS
     "${CMAKE_CURRENT_SOURCE_DIR}/src/xrpld/*.cpp"
   )
-  target_sources(xrpld PRIVATE ${sources})
+  target_sources(rippled PRIVATE ${sources})
 
   if(tests)
     file(GLOB_RECURSE sources CONFIGURE_DEPENDS
       "${CMAKE_CURRENT_SOURCE_DIR}/src/test/*.cpp"
     )
-    target_sources(xrpld PRIVATE ${sources})
+    target_sources(rippled PRIVATE ${sources})
   endif()
 
-  target_link_libraries(xrpld
-    Xrpl::boost
-    Xrpl::opts
-    Xrpl::libs
+  target_link_libraries(rippled
+    Ripple::boost
+    Ripple::opts
+    Ripple::libs
     xrpl.libxrpl
   )
-  exclude_if_included(xrpld)
+  exclude_if_included(rippled)
   # define a macro for tests that might need to
   # be exluded or run differently in CI environment
   if(is_ci)
-    target_compile_definitions(xrpld PRIVATE XRPL_RUNNING_IN_CI)
+    target_compile_definitions(rippled PRIVATE RIPPLED_RUNNING_IN_CI)
   endif ()
 
   if(voidstar)
-    target_compile_options(xrpld
+    target_compile_options(rippled
       PRIVATE
         -fsanitize-coverage=trace-pc-guard
     )
-    # xrpld requires access to antithesis-sdk-cpp implementation file
+    # rippled requires access to antithesis-sdk-cpp implementation file
     # antithesis_instrumentation.h, which is not exported as INTERFACE
-    target_include_directories(xrpld
+    target_include_directories(rippled
       PRIVATE
         ${CMAKE_SOURCE_DIR}/external/antithesis-sdk
     )
@@ -223,6 +226,4 @@ if(xrpld)
       src/test/ledger/Invariants_test.cpp
       PROPERTIES SKIP_UNITY_BUILD_INCLUSION TRUE)
   endif()
-  # For the time being, we will keep the name of the binary as it was.
-  set_target_properties(xrpld PROPERTIES OUTPUT_NAME "rippled")
 endif()

cmake/RippledCov.cmake

@@ -11,9 +11,6 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
   return()
 endif()
 
-include(ProcessorCount)
-ProcessorCount(PROCESSOR_COUNT)
-
 include(CodeCoverage)
 
 # The instructions for these commands come from the `CodeCoverage` module,
@@ -29,13 +26,15 @@ list(APPEND GCOVR_ADDITIONAL_ARGS
   --exclude-throw-branches
   --exclude-noncode-lines
   --exclude-unreachable-branches -s
-  -j ${PROCESSOR_COUNT})
+  -j ${coverage_test_parallelism})
 
 setup_target_for_coverage_gcovr(
   NAME coverage
   FORMAT ${coverage_format}
+  EXECUTABLE rippled
+  EXECUTABLE_ARGS --unittest$<$<BOOL:${coverage_test}>:=${coverage_test}> --unittest-jobs ${coverage_test_parallelism} --quiet --unittest-log
   EXCLUDE "src/test" "src/tests" "include/xrpl/beast/test" "include/xrpl/beast/unit_test" "${CMAKE_BINARY_DIR}/pb-xrpl.libpb"
-  DEPENDENCIES xrpld xrpl.tests
+  DEPENDENCIES rippled
 )
 
 add_code_coverage_to_target(opts INTERFACE)

cmake/RippledInstall.cmake

@@ -8,9 +8,9 @@ install (
   TARGETS
     common
     opts
-    xrpl_boost
-    xrpl_libs
-    xrpl_syslibs
+    ripple_boost
+    ripple_libs
+    ripple_syslibs
     xrpl.imports.main
     xrpl.libpb
     xrpl.libxrpl
@@ -26,7 +26,7 @@ install (
     xrpl.libxrpl.server
     xrpl.libxrpl.shamap
     antithesis-sdk-cpp
-  EXPORT XrplExports
+  EXPORT RippleExports
   LIBRARY DESTINATION lib
   ARCHIVE DESTINATION lib
   RUNTIME DESTINATION bin
@@ -37,19 +37,26 @@ install(
   DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
 )
 
-install (EXPORT XrplExports
-  FILE XrplTargets.cmake
-  NAMESPACE Xrpl::
-  DESTINATION lib/cmake/xrpl)
+install(CODE "
+  set(CMAKE_MODULE_PATH \"${CMAKE_MODULE_PATH}\")
+  include(create_symbolic_link)
+  create_symbolic_link(xrpl \
+    \$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}/ripple)
+")
+
+install (EXPORT RippleExports
+  FILE RippleTargets.cmake
+  NAMESPACE Ripple::
+  DESTINATION lib/cmake/ripple)
 include (CMakePackageConfigHelpers)
 write_basic_package_version_file (
-  XrplConfigVersion.cmake
-  VERSION ${xrpld_version}
+  RippleConfigVersion.cmake
+  VERSION ${rippled_version}
   COMPATIBILITY SameMajorVersion)
 
-if (is_root_project AND TARGET xrpld)
-  install (TARGETS xrpld RUNTIME DESTINATION bin)
-  set_target_properties(xrpld PROPERTIES INSTALL_RPATH_USE_LINK_PATH ON)
+if (is_root_project AND TARGET rippled)
+  install (TARGETS rippled RUNTIME DESTINATION bin)
+  set_target_properties(rippled PROPERTIES INSTALL_RPATH_USE_LINK_PATH ON)
   # sample configs should not overwrite existing files
   # install if-not-exists workaround as suggested by
   # https://cmake.org/Bug/view.php?id=12646
@@ -74,6 +81,6 @@ endif ()
 
 install (
   FILES
-    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/XrplConfig.cmake
-    ${CMAKE_CURRENT_BINARY_DIR}/XrplConfigVersion.cmake
-  DESTINATION lib/cmake/xrpl)
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/RippleConfig.cmake
+    ${CMAKE_CURRENT_BINARY_DIR}/RippleConfigVersion.cmake
+  DESTINATION lib/cmake/ripple)

cmake/RippledInterface.cmake

@@ -1,9 +1,9 @@
 #[===================================================================[
-   xrpld compile options/settings via an interface library
+   rippled compile options/settings via an interface library
 #]===================================================================]
 
 add_library (opts INTERFACE)
-add_library (Xrpl::opts ALIAS opts)
+add_library (Ripple::opts ALIAS opts)
 target_compile_definitions (opts
   INTERFACE
     BOOST_ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS
@@ -21,7 +21,7 @@ target_compile_definitions (opts
     >
     $<$<BOOL:${beast_no_unit_test_inline}>:BEAST_NO_UNIT_TEST_INLINE=1>
     $<$<BOOL:${beast_disable_autolink}>:BEAST_DONT_AUTOLINK_TO_WIN32_LIBRARIES=1>
-    $<$<BOOL:${single_io_service_thread}>:XRPL_SINGLE_IO_SERVICE_THREAD=1>
+    $<$<BOOL:${single_io_service_thread}>:RIPPLE_SINGLE_IO_SERVICE_THREAD=1>
     $<$<BOOL:${voidstar}>:ENABLE_VOIDSTAR>)
 target_compile_options (opts
   INTERFACE
@@ -59,12 +59,12 @@ if (san)
 endif ()
 
 #[===================================================================[
-   xrpld transitive library deps via an interface library
+   rippled transitive library deps via an interface library
 #]===================================================================]
 
-add_library (xrpl_syslibs INTERFACE)
-add_library (Xrpl::syslibs ALIAS xrpl_syslibs)
-target_link_libraries (xrpl_syslibs
+add_library (ripple_syslibs INTERFACE)
+add_library (Ripple::syslibs ALIAS ripple_syslibs)
+target_link_libraries (ripple_syslibs
   INTERFACE
     $<$<BOOL:${MSVC}>:
       legacy_stdio_definitions.lib
@@ -89,9 +89,9 @@ target_link_libraries (xrpl_syslibs
 if (NOT MSVC)
   set (THREADS_PREFER_PTHREAD_FLAG ON)
   find_package (Threads)
-  target_link_libraries (xrpl_syslibs INTERFACE Threads::Threads)
+  target_link_libraries (ripple_syslibs INTERFACE Threads::Threads)
 endif ()
 
-add_library (xrpl_libs INTERFACE)
-add_library (Xrpl::libs ALIAS xrpl_libs)
-target_link_libraries (xrpl_libs INTERFACE Xrpl::syslibs)
+add_library (ripple_libs INTERFACE)
+add_library (Ripple::libs ALIAS ripple_libs)
+target_link_libraries (ripple_libs INTERFACE Ripple::syslibs)

cmake/RippledSanity.cmake

@@ -1,5 +1,5 @@
 #[===================================================================[
-   sanity checks
+   convenience variables and sanity checks
 #]===================================================================]
 
 get_property(is_multiconfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
@@ -16,19 +16,39 @@ if (NOT is_multiconfig)
   endif ()
 endif ()
 
+get_directory_property(has_parent PARENT_DIRECTORY)
+if (has_parent)
+  set (is_root_project OFF)
+else ()
+  set (is_root_project ON)
+endif ()
+
 if ("${CMAKE_CXX_COMPILER_ID}" MATCHES ".*Clang") # both Clang and AppleClang
   set (is_clang TRUE)
   if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" AND
-         CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16.0)
-    message (FATAL_ERROR "This project requires clang 16 or later")
+         CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0)
+    message (FATAL_ERROR "This project requires clang 8 or later")
   endif ()
+  # TODO min AppleClang version check ?
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
   set (is_gcc TRUE)
-  if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.0)
-    message (FATAL_ERROR "This project requires GCC 12 or later")
+  if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0)
+    message (FATAL_ERROR "This project requires GCC 8 or later")
   endif ()
 endif ()
 
+if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  set (is_linux TRUE)
+else ()
+  set (is_linux FALSE)
+endif ()
+
+if ("$ENV{CI}" STREQUAL "true" OR "$ENV{CONTINUOUS_INTEGRATION}" STREQUAL "true")
+  set (is_ci TRUE)
+else ()
+  set (is_ci FALSE)
+endif ()
+
 # check for in-source build and fail
 if ("${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
   message (FATAL_ERROR "Builds (in-source) are not allowed in "
@@ -41,8 +61,8 @@ if (MSVC AND CMAKE_GENERATOR_PLATFORM STREQUAL "Win32")
 endif ()
 
 if (NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
-  message (FATAL_ERROR "Xrpld requires a 64 bit target architecture.\n"
-    "The most likely cause of this warning is trying to build xrpld with a 32-bit OS.")
+  message (FATAL_ERROR "Rippled requires a 64 bit target architecture.\n"
+    "The most likely cause of this warning is trying to build rippled with a 32-bit OS.")
 endif ()
 
 if (APPLE AND NOT HOMEBREW)

cmake/RippledSettings.cmake

@@ -1,25 +1,10 @@
 #[===================================================================[
-   declare options and variables
+   declare user options/settings
 #]===================================================================]
 
-if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
-  set (is_linux TRUE)
-else()
-  set(is_linux FALSE)
-endif()
+include(ProcessorCount)
 
-if("$ENV{CI}" STREQUAL "true" OR "$ENV{CONTINUOUS_INTEGRATION}" STREQUAL "true")
-  set(is_ci TRUE)
-else()
-  set(is_ci FALSE)
-endif()
-
-get_directory_property(has_parent PARENT_DIRECTORY)
-if(has_parent)
-  set(is_root_project OFF)
-else()
-  set(is_root_project ON)
-endif()
+ProcessorCount(PROCESSOR_COUNT)
 
 option(assert "Enables asserts, even in release builds" OFF)
 
@@ -40,30 +25,31 @@ if(unity)
   endif()
   set(CMAKE_UNITY_BUILD ON CACHE BOOL "Do a unity build")
 endif()
-
 if(is_clang AND is_linux)
   option(voidstar "Enable Antithesis instrumentation." OFF)
 endif()
-
 if(is_gcc OR is_clang)
-  include(ProcessorCount)
-  ProcessorCount(PROCESSOR_COUNT)
-
   option(coverage "Generates coverage info." OFF)
   option(profile "Add profiling flags" OFF)
+  set(coverage_test_parallelism "${PROCESSOR_COUNT}" CACHE STRING
+    "Unit tests parallelism for the purpose of coverage report.")
   set(coverage_format "html-details" CACHE STRING
     "Output format of the coverage report.")
   set(coverage_extra_args "" CACHE STRING
     "Additional arguments to pass to gcovr.")
+  set(coverage_test "" CACHE STRING
+    "On gcc & clang, the specific unit test(s) to run for coverage. Default is all tests.")
+  if(coverage_test AND NOT coverage)
+    set(coverage ON CACHE BOOL "gcc/clang only" FORCE)
+  endif()
   option(wextra "compile with extra gcc/clang warnings enabled" ON)
 else()
   set(profile OFF CACHE BOOL "gcc/clang only" FORCE)
   set(coverage OFF CACHE BOOL "gcc/clang only" FORCE)
   set(wextra OFF CACHE BOOL "gcc/clang only" FORCE)
 endif()
-
 if(is_linux)
-  option(BUILD_SHARED_LIBS "build shared xrpl libraries" OFF)
+  option(BUILD_SHARED_LIBS "build shared ripple libraries" OFF)
   option(static "link protobuf, openssl, libc++, and boost statically" ON)
   option(perf "Enables flags that assist with perf recording" OFF)
   option(use_gold "enables detection of gold (binutils) linker" ON)
@@ -72,19 +58,17 @@ else()
   # we are not ready to allow shared-libs on windows because it would require
   # export declarations. On macos it's more feasible, but static openssl
   # produces odd linker errors, thus we disable shared lib builds for now.
-  set(BUILD_SHARED_LIBS OFF CACHE BOOL "build shared xrpl libraries - OFF for win/macos" FORCE)
+  set(BUILD_SHARED_LIBS OFF CACHE BOOL "build shared ripple libraries - OFF for win/macos" FORCE)
   set(static ON CACHE BOOL "static link, linux only. ON for WIN/macos" FORCE)
   set(perf OFF CACHE BOOL "perf flags, linux only" FORCE)
   set(use_gold OFF CACHE BOOL "gold linker, linux only" FORCE)
   set(use_mold OFF CACHE BOOL "mold linker, linux only" FORCE)
 endif()
-
 if(is_clang)
   option(use_lld "enables detection of lld linker" ON)
 else()
   set(use_lld OFF CACHE BOOL "try lld linker, clang only" FORCE)
 endif()
-
 option(jemalloc "Enables jemalloc for heap profiling" OFF)
 option(werr "treat warnings as errors" OFF)
 option(local_protobuf
@@ -118,6 +102,16 @@ if(san)
     message(FATAL_ERROR "${san} sanitizer does not seem to be supported by your compiler")
   endif()
 endif()
+set(container_label "" CACHE STRING "tag to use for package building containers")
+option(packages_only
+  "ONLY generate package building targets. This is special use-case and almost \
+   certainly not what you want. Use with caution as you won't be able to build \
+   any compiled targets locally." OFF)
+option(have_package_container
+  "Sometimes you already have the tagged container you want to use for package \
+   building and you don't want docker to rebuild it. This flag will detach the \
+   dependency of the package build from the container build. It's an advanced \
+   use case and most likely you should not be touching this flag." OFF)
 
 # the remaining options are obscure and rarely used
 option(beast_no_unit_test_inline
@@ -131,13 +125,15 @@ option(boost_show_deprecated
   "Allow boost to fail on deprecated usage. Only useful if you're trying\
   to find deprecated calls."
   OFF)
+option(beast_hashers
+  "Use local implementations for sha/ripemd hashes (experimental, not recommended)"
+  OFF)
 
 if(WIN32)
   option(beast_disable_autolink "Disables autolinking of system libraries on WIN32" OFF)
 else()
   set(beast_disable_autolink OFF CACHE BOOL "WIN32 only" FORCE)
 endif()
-
 if(coverage)
   message(STATUS "coverage build requested - forcing Debug build")
   set(CMAKE_BUILD_TYPE Debug CACHE STRING "build type" FORCE)

cmake/RippledVersion.cmake

@@ -5,11 +5,11 @@
 file(STRINGS src/libxrpl/protocol/BuildInfo.cpp BUILD_INFO)
 foreach(line_ ${BUILD_INFO})
   if(line_ MATCHES "versionString[ ]*=[ ]*\"(.+)\"")
-    set(xrpld_version ${CMAKE_MATCH_1})
+    set(rippled_version ${CMAKE_MATCH_1})
   endif()
 endforeach()
-if(xrpld_version)
-  message(STATUS "xrpld version: ${xrpld_version}")
+if(rippled_version)
+  message(STATUS "rippled version: ${rippled_version}")
 else()
-  message(FATAL_ERROR "unable to determine xrpld version")
+  message(FATAL_ERROR "unable to determine rippled version")
 endif()

cmake/deps/Boost.cmake

@@ -12,10 +12,10 @@ find_package(Boost 1.82 REQUIRED
     thread
 )
 
-add_library(xrpl_boost INTERFACE)
-add_library(Xrpl::boost ALIAS xrpl_boost)
+add_library(ripple_boost INTERFACE)
+add_library(Ripple::boost ALIAS ripple_boost)
 
-target_link_libraries(xrpl_boost
+target_link_libraries(ripple_boost
   INTERFACE
     Boost::headers
     Boost::chrono
@@ -30,7 +30,7 @@ target_link_libraries(xrpl_boost
     Boost::system
     Boost::thread)
 if(Boost_COMPILER)
-  target_link_libraries(xrpl_boost INTERFACE Boost::disable_autolinking)
+  target_link_libraries(ripple_boost INTERFACE Boost::disable_autolinking)
 endif()
 if(san AND is_clang)
   # TODO: gcc does not support -fsanitize-blacklist...can we do something else

cmake/xrpl_add_test.cmake

@@ -22,4 +22,20 @@ function(xrpl_add_test name)
     UNITY_BUILD_BATCH_SIZE 0)  # Adjust as needed
 
   add_test(NAME ${target} COMMAND ${target})
+  set_tests_properties(
+    ${target} PROPERTIES
+    FIXTURES_REQUIRED ${target}_fixture
+  )
+
+  add_test(
+    NAME ${target}.build
+    COMMAND
+      ${CMAKE_COMMAND}
+      --build ${CMAKE_BINARY_DIR}
+      --config $<CONFIG>
+      --target ${target}
+  )
+  set_tests_properties(${target}.build PROPERTIES
+    FIXTURES_SETUP ${target}_fixture
+  )
 endfunction()

conan.lock

@@ -6,34 +6,32 @@
         "sqlite3/3.49.1#8631739a4c9b93bd3d6b753bac548a63%1756234266.869",
         "soci/4.0.3#a9f8d773cd33e356b5879a4b0564f287%1756234262.318",
         "snappy/1.1.10#968fef506ff261592ec30c574d4a7809%1756234314.246",
-        "rocksdb/10.5.1#4a197eca381a3e5ae8adf8cffa5aacd0%1762797952.535",
-        "re2/20230301#ca3b241baec15bd31ea9187150e0b333%1764175362.029",
-        "protobuf/3.21.12#44ee56c0a6eea0c19aeeaca680370b88%1764175361.456",
-        "openssl/3.5.4#a1d5835cc6ed5c5b8f3cd5b9b5d24205%1760106486.594",
-        "nudb/2.0.9#fb8dfd1a5557f5e0528114c2da17721e%1763150366.909",
+        "rocksdb/10.0.1#85537f46e538974d67da0c3977de48ac%1756234304.347",
+        "re2/20230301#dfd6e2bf050eb90ddd8729cfb4c844a4%1756234257.976",
+        "protobuf/3.21.12#d927114e28de9f4691a6bbcdd9a529d1%1756234251.614",
+        "openssl/3.5.4#a1d5835cc6ed5c5b8f3cd5b9b5d24205%1759746684.671",
+        "nudb/2.0.9#c62cfd501e57055a7e0d8ee3d5e5427d%1756234237.107",
         "lz4/1.10.0#59fc63cac7f10fbe8e05c7e62c2f3504%1756234228.999",
         "libiconv/1.17#1e65319e945f2d31941a9d28cc13c058%1756223727.64",
         "libbacktrace/cci.20210118#a7691bfccd8caaf66309df196790a5a1%1756230911.03",
-        "libarchive/3.8.1#ffee18995c706e02bf96e7a2f7042e0d%1764175360.142",
+        "libarchive/3.8.1#5cf685686322e906cb42706ab7e099a8%1756234256.696",
         "jemalloc/5.3.0#e951da9cf599e956cebc117880d2d9f8%1729241615.244",
         "grpc/1.50.1#02291451d1e17200293a409410d1c4e1%1756234248.958",
-        "ed25519/2015.03#17c1f1910e769f368025267a53c23c13%1764259445.491",
-        "doctest/2.4.12#eb9fb352fb2fdfc8abb17ec270945165%1762797941.757",
-        "date/3.0.4#862e11e80030356b53c2c38599ceb32b%1763584497.32",
-        "c-ares/1.34.5#5581c2b62a608b40bb85d965ab3ec7c8%1764175359.429",
-        "bzip2/1.0.8#c470882369c2d95c5c77e970c0c7e321%1764175359.429",
+        "doctest/2.4.11#a4211dfc329a16ba9f280f9574025659%1756234220.819",
+        "date/3.0.4#f74bbba5a08fa388256688743136cb6f%1756234217.493",
+        "c-ares/1.34.5#b78b91e7cfb1f11ce777a285bbf169c6%1756234217.915",
+        "bzip2/1.0.8#00b4a4658791c1f06914e087f0e792f5%1756234261.716",
         "boost/1.88.0#8852c0b72ce8271fb8ff7c53456d4983%1756223752.326",
-        "abseil/20230802.1#90ba607d4ee8fb5fb157c3db540671fc%1764175359.429"
+        "abseil/20230802.1#f0f91485b111dc9837a68972cb19ca7b%1756234220.907"
     ],
     "build_requires": [
         "zlib/1.3.1#b8bc2603263cf7eccbd6e17e66b0ed76%1756234269.497",
         "strawberryperl/5.32.1.1#707032463aa0620fa17ec0d887f5fe41%1756234281.733",
-        "protobuf/3.21.12#44ee56c0a6eea0c19aeeaca680370b88%1764175361.456",
+        "protobuf/3.21.12#d927114e28de9f4691a6bbcdd9a529d1%1756234251.614",
         "nasm/2.16.01#31e26f2ee3c4346ecd347911bd126904%1756234232.901",
         "msys2/cci.latest#5b73b10144f73cc5bfe0572ed9be39e1%1751977009.857",
-        "m4/1.4.19#70dc8bbb33e981d119d2acc0175cf381%1763158052.846",
-        "cmake/4.2.0#ae0a44f44a1ef9ab68fd4b3e9a1f8671%1764175359.44",
-        "cmake/3.31.10#313d16a1aa16bbdb2ca0792467214b76%1764175359.429",
+        "m4/1.4.19#b38ced39a01e31fef5435bc634461fd2%1700758725.451",
+        "cmake/3.31.8#dde3bde00bb843687e55aea5afa0e220%1756234232.89",
         "b2/5.3.3#107c15377719889654eb9a162a673975%1756234226.28",
         "automake/1.16.5#b91b7c384c3deaa9d535be02da14d04f%1755524470.56",
         "autoconf/2.71#51077f068e61700d65bb05541ea1e4b0%1731054366.86"
@@ -52,10 +50,7 @@
         ],
         "sqlite3/3.44.2": [
             "sqlite3/3.49.1"
-        ],
-        "lz4/[>=1.9.4 <2]": [
-            "lz4/1.10.0#59fc63cac7f10fbe8e05c7e62c2f3504"
         ]
     },
     "config_requires": []
-}
+}

conan/lockfile/README.md

@@ -1,12 +0,0 @@
-# Conan lockfile
-
-To achieve reproducible dependencies, we use a [Conan lockfile](https://docs.conan.io/2/tutorial/versioning/lockfiles.html).
-
-The `conan.lock` file in the repository contains a "snapshot" of the current
-dependencies. It is implicitly used when running `conan` commands, so you don't
-need to specify it.
-
-You have to update this file every time you add a new dependency or change a
-revision or version of an existing dependency.
-
-To update a lockfile, run from the repository root: `./conan/lockfile/regenerate.sh`

conan/lockfile/linux.profile

@@ -1,8 +0,0 @@
-[settings]
-arch=x86_64
-build_type=Release
-compiler=gcc
-compiler.cppstd=20
-compiler.libcxx=libstdc++11
-compiler.version=13
-os=Linux

conan/lockfile/macos.profile

@@ -1,8 +0,0 @@
-[settings]
-arch=armv8
-build_type=Release
-compiler=apple-clang
-compiler.cppstd=20
-compiler.libcxx=libc++
-compiler.version=17.0
-os=Macos

conan/lockfile/regenerate.sh

@@ -1,36 +0,0 @@
-#!/usr/bin/env bash
-
-set -ex
-
-TEMP_DIR=$(mktemp -d)
-trap "rm -rf $TEMP_DIR" EXIT
-
-echo "Using temporary CONAN_HOME: $TEMP_DIR"
-
-# We use a temporary Conan home to avoid polluting the user's existing Conan
-# configuration and to not use local cache (which leads to non-reproducible lockfiles).
-export CONAN_HOME="$TEMP_DIR"
-
-# Ensure that the xrplf remote is the first to be consulted, so any recipes we
-# patched are used. We also add it there to not created huge diff when the
-# official Conan Center Index is updated.
-conan remote add --force --index 0 xrplf https://conan.ripplex.io
-
-# Delete any existing lockfile.
-rm -f conan.lock
-
-# Create a new lockfile that is compatible with Linux, macOS, and Windows. The
-# first create command will create a new lockfile, while the subsequent create
-# commands will merge any additional dependencies into the created lockfile.
-conan lock create . \
-  --options '&:jemalloc=True' \
-  --options '&:rocksdb=True' \
-  --profile:all=conan/lockfile/linux.profile
-conan lock create . \
-  --options '&:jemalloc=True' \
-  --options '&:rocksdb=True' \
-  --profile:all=conan/lockfile/macos.profile
-conan lock create . \
-  --options '&:jemalloc=True' \
-  --options '&:rocksdb=True' \
-  --profile:all=conan/lockfile/windows.profile

conan/lockfile/windows.profile

@@ -1,9 +0,0 @@
-[settings]
-arch=x86_64
-build_type=Release
-compiler=msvc
-compiler.cppstd=20
-compiler.runtime=dynamic
-compiler.runtime_type=Release
-compiler.version=194
-os=Windows

conanfile.py

@@ -1,156 +1,149 @@
+from conan import ConanFile, __version__ as conan_version
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
 import re
 
-from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
-
-from conan import ConanFile
-from conan import __version__ as conan_version
-
-
 class Xrpl(ConanFile):
-    name = "xrpl"
+    name = 'xrpl'
 
-    license = "ISC"
-    author = "John Freeman <jfreeman@ripple.com>"
-    url = "https://github.com/xrplf/rippled"
-    description = "The XRP Ledger"
-    settings = "os", "compiler", "build_type", "arch"
+    license = 'ISC'
+    author = 'John Freeman <jfreeman@ripple.com>'
+    url = 'https://github.com/xrplf/rippled'
+    description = 'The XRP Ledger'
+    settings = 'os', 'compiler', 'build_type', 'arch'
     options = {
-        "assertions": [True, False],
-        "coverage": [True, False],
-        "fPIC": [True, False],
-        "jemalloc": [True, False],
-        "rocksdb": [True, False],
-        "shared": [True, False],
-        "static": [True, False],
-        "tests": [True, False],
-        "unity": [True, False],
-        "xrpld": [True, False],
+        'assertions': [True, False],
+        'coverage': [True, False],
+        'fPIC': [True, False],
+        'jemalloc': [True, False],
+        'rocksdb': [True, False],
+        'shared': [True, False],
+        'static': [True, False],
+        'tests': [True, False],
+        'unity': [True, False],
+        'xrpld': [True, False],
     }
 
     requires = [
-        "ed25519/2015.03",
-        "grpc/1.50.1",
-        "libarchive/3.8.1",
-        "nudb/2.0.9",
-        "openssl/3.5.4",
-        "soci/4.0.3",
-        "zlib/1.3.1",
+        'grpc/1.50.1',
+        'libarchive/3.8.1',
+        'nudb/2.0.9',
+        'openssl/3.5.4',
+        'soci/4.0.3',
+        'zlib/1.3.1',
     ]
 
     test_requires = [
-        "doctest/2.4.12",
+        'doctest/2.4.11',
     ]
 
     tool_requires = [
-        "protobuf/3.21.12",
+        'protobuf/3.21.12',
     ]
 
     default_options = {
-        "assertions": False,
-        "coverage": False,
-        "fPIC": True,
-        "jemalloc": False,
-        "rocksdb": True,
-        "shared": False,
-        "static": True,
-        "tests": False,
-        "unity": False,
-        "xrpld": False,
-        "date/*:header_only": True,
-        "grpc/*:shared": False,
-        "grpc/*:secure": True,
-        "libarchive/*:shared": False,
-        "libarchive/*:with_acl": False,
-        "libarchive/*:with_bzip2": False,
-        "libarchive/*:with_cng": False,
-        "libarchive/*:with_expat": False,
-        "libarchive/*:with_iconv": False,
-        "libarchive/*:with_libxml2": False,
-        "libarchive/*:with_lz4": True,
-        "libarchive/*:with_lzma": False,
-        "libarchive/*:with_lzo": False,
-        "libarchive/*:with_nettle": False,
-        "libarchive/*:with_openssl": False,
-        "libarchive/*:with_pcreposix": False,
-        "libarchive/*:with_xattr": False,
-        "libarchive/*:with_zlib": False,
-        "lz4/*:shared": False,
-        "openssl/*:shared": False,
-        "protobuf/*:shared": False,
-        "protobuf/*:with_zlib": True,
-        "rocksdb/*:enable_sse": False,
-        "rocksdb/*:lite": False,
-        "rocksdb/*:shared": False,
-        "rocksdb/*:use_rtti": True,
-        "rocksdb/*:with_jemalloc": False,
-        "rocksdb/*:with_lz4": True,
-        "rocksdb/*:with_snappy": True,
-        "snappy/*:shared": False,
-        "soci/*:shared": False,
-        "soci/*:with_sqlite3": True,
-        "soci/*:with_boost": True,
-        "xxhash/*:shared": False,
+        'assertions': False,
+        'coverage': False,
+        'fPIC': True,
+        'jemalloc': False,
+        'rocksdb': True,
+        'shared': False,
+        'static': True,
+        'tests': False,
+        'unity': False,
+        'xrpld': False,
+
+        'date/*:header_only': True,
+        'grpc/*:shared': False,
+        'grpc/*:secure': True,
+        'libarchive/*:shared': False,
+        'libarchive/*:with_acl': False,
+        'libarchive/*:with_bzip2': False,
+        'libarchive/*:with_cng': False,
+        'libarchive/*:with_expat': False,
+        'libarchive/*:with_iconv': False,
+        'libarchive/*:with_libxml2': False,
+        'libarchive/*:with_lz4': True,
+        'libarchive/*:with_lzma': False,
+        'libarchive/*:with_lzo': False,
+        'libarchive/*:with_nettle': False,
+        'libarchive/*:with_openssl': False,
+        'libarchive/*:with_pcreposix': False,
+        'libarchive/*:with_xattr': False,
+        'libarchive/*:with_zlib': False,
+        'lz4/*:shared': False,
+        'openssl/*:shared': False,
+        'protobuf/*:shared': False,
+        'protobuf/*:with_zlib': True,
+        'rocksdb/*:enable_sse': False,
+        'rocksdb/*:lite': False,
+        'rocksdb/*:shared': False,
+        'rocksdb/*:use_rtti': True,
+        'rocksdb/*:with_jemalloc': False,
+        'rocksdb/*:with_lz4': True,
+        'rocksdb/*:with_snappy': True,
+        'snappy/*:shared': False,
+        'soci/*:shared': False,
+        'soci/*:with_sqlite3': True,
+        'soci/*:with_boost': True,
+        'xxhash/*:shared': False,
     }
 
     def set_version(self):
         if self.version is None:
-            path = f"{self.recipe_folder}/src/libxrpl/protocol/BuildInfo.cpp"
-            regex = r"versionString\s?=\s?\"(.*)\""
-            with open(path, encoding="utf-8") as file:
+            path = f'{self.recipe_folder}/src/libxrpl/protocol/BuildInfo.cpp'
+            regex = r'versionString\s?=\s?\"(.*)\"'
+            with open(path, encoding='utf-8') as file:
                 matches = (re.search(regex, line) for line in file)
                 match = next(m for m in matches if m)
                 self.version = match.group(1)
 
     def configure(self):
-        if self.settings.compiler == "apple-clang":
-            self.options["boost"].visibility = "global"
-        if self.settings.compiler in ["clang", "gcc"]:
-            self.options["boost"].without_cobalt = True
+        if self.settings.compiler == 'apple-clang':
+            self.options['boost'].visibility = 'global'
+        if self.settings.compiler in ['clang', 'gcc']:
+            self.options['boost'].without_cobalt = True
 
     def requirements(self):
         # Conan 2 requires transitive headers to be specified
-        transitive_headers_opt = (
-            {"transitive_headers": True} if conan_version.split(".")[0] == "2" else {}
-        )
-        self.requires("boost/1.88.0", force=True, **transitive_headers_opt)
-        self.requires("date/3.0.4", **transitive_headers_opt)
-        self.requires("lz4/1.10.0", force=True)
-        self.requires("protobuf/3.21.12", force=True)
-        self.requires("sqlite3/3.49.1", force=True)
+        transitive_headers_opt = {'transitive_headers': True} if conan_version.split('.')[0] == '2' else {}
+        self.requires('boost/1.88.0', force=True, **transitive_headers_opt)
+        self.requires('date/3.0.4', **transitive_headers_opt)
+        self.requires('lz4/1.10.0', force=True)
+        self.requires('protobuf/3.21.12', force=True)
+        self.requires('sqlite3/3.49.1', force=True)
         if self.options.jemalloc:
-            self.requires("jemalloc/5.3.0")
+            self.requires('jemalloc/5.3.0')
         if self.options.rocksdb:
-            self.requires("rocksdb/10.5.1")
-        self.requires("xxhash/0.8.3", **transitive_headers_opt)
+            self.requires('rocksdb/10.0.1')
+        self.requires('xxhash/0.8.3', **transitive_headers_opt)
 
     exports_sources = (
-        "CMakeLists.txt",
-        "cfg/*",
-        "cmake/*",
-        "external/*",
-        "include/*",
-        "src/*",
+        'CMakeLists.txt',
+        'cfg/*',
+        'cmake/*',
+        'external/*',
+        'include/*',
+        'src/*',
     )
 
     def layout(self):
         cmake_layout(self)
         # Fix this setting to follow the default introduced in Conan 1.48
         # to align with our build instructions.
-        self.folders.generators = "build/generators"
-
-    generators = "CMakeDeps"
+        self.folders.generators = 'build/generators'
 
+    generators = 'CMakeDeps'
     def generate(self):
         tc = CMakeToolchain(self)
-        tc.variables["tests"] = self.options.tests
-        tc.variables["assert"] = self.options.assertions
-        tc.variables["coverage"] = self.options.coverage
-        tc.variables["jemalloc"] = self.options.jemalloc
-        tc.variables["rocksdb"] = self.options.rocksdb
-        tc.variables["BUILD_SHARED_LIBS"] = self.options.shared
-        tc.variables["static"] = self.options.static
-        tc.variables["unity"] = self.options.unity
-        tc.variables["xrpld"] = self.options.xrpld
+        tc.variables['tests'] = self.options.tests
+        tc.variables['assert'] = self.options.assertions
+        tc.variables['coverage'] = self.options.coverage
+        tc.variables['jemalloc'] = self.options.jemalloc
+        tc.variables['rocksdb'] = self.options.rocksdb
+        tc.variables['BUILD_SHARED_LIBS'] = self.options.shared
+        tc.variables['static'] = self.options.static
+        tc.variables['unity'] = self.options.unity
+        tc.variables['xrpld'] = self.options.xrpld
         tc.generate()
 
     def build(self):
@@ -165,41 +158,40 @@ class Xrpl(ConanFile):
         cmake.install()
 
     def package_info(self):
-        libxrpl = self.cpp_info.components["libxrpl"]
+        libxrpl = self.cpp_info.components['libxrpl']
         libxrpl.libs = [
-            "xrpl",
-            "xrpl.libpb",
-            "ed25519",
-            "secp256k1",
+            'xrpl',
+            'xrpl.libpb',
+            'ed25519',
+            'secp256k1',
         ]
         # TODO: Fix the protobufs to include each other relative to
         # `include/`, not `include/ripple/proto/`.
-        libxrpl.includedirs = ["include", "include/ripple/proto"]
+        libxrpl.includedirs = ['include', 'include/ripple/proto']
         libxrpl.requires = [
-            "boost::headers",
-            "boost::chrono",
-            "boost::container",
-            "boost::coroutine",
-            "boost::date_time",
-            "boost::filesystem",
-            "boost::json",
-            "boost::program_options",
-            "boost::process",
-            "boost::regex",
-            "boost::system",
-            "boost::thread",
-            "date::date",
-            "ed25519::ed25519",
-            "grpc::grpc++",
-            "libarchive::libarchive",
-            "lz4::lz4",
-            "nudb::nudb",
-            "openssl::crypto",
-            "protobuf::libprotobuf",
-            "soci::soci",
-            "sqlite3::sqlite",
-            "xxhash::xxhash",
-            "zlib::zlib",
+            'boost::headers',
+            'boost::chrono',
+            'boost::container',
+            'boost::coroutine',
+            'boost::date_time',
+            'boost::filesystem',
+            'boost::json',
+            'boost::program_options',
+            'boost::process',
+            'boost::regex',
+            'boost::system',
+            'boost::thread',
+            'date::date',
+            'grpc::grpc++',
+            'libarchive::libarchive',
+            'lz4::lz4',
+            'nudb::nudb',
+            'openssl::crypto',
+            'protobuf::libprotobuf',
+            'soci::soci',
+            'sqlite3::sqlite',
+            'xxhash::xxhash',
+            'zlib::zlib',
         ]
         if self.options.rocksdb:
-            libxrpl.requires.append("rocksdb::librocksdb")
+            libxrpl.requires.append('rocksdb::librocksdb')

external/README.md

@@ -5,4 +5,5 @@ The subdirectories in this directory contain external libraries used by rippled.
 | Folder           | Upstream                                                       | Description                                                                                  |
 | :--------------- | :------------------------------------------------------------- | :------------------------------------------------------------------------------------------- |
 | `antithesis-sdk` | [Project](https://github.com/antithesishq/antithesis-sdk-cpp/) | [Antithesis](https://antithesis.com/docs/using_antithesis/sdk/cpp/overview.html) SDK for C++ |
+| `ed25519-donna`  | [Project](https://github.com/floodyberry/ed25519-donna)        | [Ed25519](http://ed25519.cr.yp.to/) digital signatures                                       |
 | `secp256k1`      | [Project](https://github.com/bitcoin-core/secp256k1)           | ECDSA digital signatures using the **secp256k1** curve                                       |

external/ed25519-donna/CMakeLists.txt

@@ -0,0 +1,51 @@
+cmake_minimum_required(VERSION 3.11)
+
+project(ed25519
+  LANGUAGES C
+)
+
+if(PROJECT_NAME STREQUAL CMAKE_PROJECT_NAME)
+  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/output/$<CONFIG>/lib")
+endif()
+
+if(NOT TARGET OpenSSL::SSL)
+  find_package(OpenSSL)
+endif()
+
+add_library(ed25519 STATIC
+  ed25519.c
+)
+add_library(ed25519::ed25519 ALIAS ed25519)
+target_link_libraries(ed25519 PUBLIC OpenSSL::SSL)
+if(NOT MSVC)
+  target_compile_options(ed25519 PRIVATE -Wno-implicit-fallthrough)
+endif()
+
+include(GNUInstallDirs)
+
+#[=========================================================[
+   NOTE for macos:
+   https://github.com/floodyberry/ed25519-donna/issues/29
+   our source for ed25519-donna-portable.h has been
+   patched to workaround this.
+#]=========================================================]
+target_include_directories(ed25519 PUBLIC
+  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+)
+
+install(
+  TARGETS ed25519
+  EXPORT ${PROJECT_NAME}-exports
+  ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+)
+install(
+  EXPORT ${PROJECT_NAME}-exports
+  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+  FILE ${PROJECT_NAME}-targets.cmake
+  NAMESPACE ${PROJECT_NAME}::
+)
+install(
+  FILES ed25519.h
+  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+)

external/ed25519-donna/README.md

@@ -0,0 +1,183 @@
+[ed25519](http://ed25519.cr.yp.to/) is an 
+[Elliptic Curve Digital Signature Algortithm](http://en.wikipedia.org/wiki/Elliptic_Curve_DSA), 
+developed by [Dan Bernstein](http://cr.yp.to/djb.html), 
+[Niels Duif](http://www.nielsduif.nl/), 
+[Tanja Lange](http://hyperelliptic.org/tanja), 
+[Peter Schwabe](http://www.cryptojedi.org/users/peter/), 
+and [Bo-Yin Yang](http://www.iis.sinica.edu.tw/pages/byyang/).
+
+This project provides performant, portable 32-bit & 64-bit implementations. All implementations are 
+of course constant time in regard to secret data.
+
+#### Performance
+
+SSE2 code and benches have not been updated yet. I will do those next.
+
+Compilers versions are gcc 4.6.3, icc 13.1.1, clang 3.4-1~exp1.
+
+Batch verification time (in parentheses) is the average time per 1 verification in a batch of 64 signatures. Counts are in thousands of cycles.
+
+Note that SSE2 performance may be less impressive on AMD & older CPUs with slower SSE ops!
+
+Visual Studio performance for `ge25519_scalarmult_base_niels` will lag behind a bit until optimized assembler versions of `ge25519_scalarmult_base_choose_niels`
+are made.
+
+##### E5200 @ 2.5ghz, march=core2
+
+<table>
+<thead><tr><th>Implementation</th><th>Sign</th><th>gcc</th><th>icc</th><th>clang</th><th>Verify</th><th>gcc</th><th>icc</th><th>clang</th></tr></thead>
+<tbody>
+<tr><td>ed25519-donna 64bit     </td><td></td><td>100k</td><td>110k</td><td>137k</td><td></td><td>327k (144k) </td><td>342k (163k) </td><td>422k (194k) </td></tr>
+<tr><td>amd64-64-24k            </td><td></td><td>102k</td><td>    </td><td>    </td><td></td><td>355k (158k) </td><td>            </td><td>            </td></tr>
+<tr><td>ed25519-donna-sse2 64bit</td><td></td><td>108k</td><td>111k</td><td>116k</td><td></td><td>353k (155k) </td><td>345k (154k) </td><td>360k (161k) </td></tr>
+<tr><td>amd64-51-32k            </td><td></td><td>116k</td><td>    </td><td>    </td><td></td><td>380k (175k) </td><td>            </td><td>            </td></tr>
+<tr><td>ed25519-donna-sse2 32bit</td><td></td><td>147k</td><td>147k</td><td>156k</td><td></td><td>380k (178k) </td><td>381k (173k) </td><td>430k (192k) </td></tr>
+<tr><td>ed25519-donna 32bit     </td><td></td><td>597k</td><td>335k</td><td>380k</td><td></td><td>1693k (720k)</td><td>1052k (453k)</td><td>1141k (493k)</td></tr>
+</tbody>
+</table>
+
+##### E3-1270 @ 3.4ghz, march=corei7-avx
+
+<table>
+<thead><tr><th>Implementation</th><th>Sign</th><th>gcc</th><th>icc</th><th>clang</th><th>Verify</th><th>gcc</th><th>icc</th><th>clang</th></tr></thead>
+<tbody>
+<tr><td>amd64-64-24k            </td><td></td><td> 68k</td><td>    </td><td>    </td><td></td><td>225k (104k) </td><td>            </td><td>            </td></tr>
+<tr><td>ed25519-donna 64bit     </td><td></td><td> 71k</td><td> 75k</td><td> 90k</td><td></td><td>226k (105k) </td><td>226k (112k) </td><td>277k (125k) </td></tr>
+<tr><td>amd64-51-32k            </td><td></td><td> 72k</td><td>    </td><td>    </td><td></td><td>218k (107k) </td><td>            </td><td>            </td></tr>
+<tr><td>ed25519-donna-sse2 64bit</td><td></td><td> 79k</td><td> 82k</td><td> 92k</td><td></td><td>252k (122k) </td><td>259k (124k) </td><td>282k (131k) </td></tr>
+<tr><td>ed25519-donna-sse2 32bit</td><td></td><td> 94k</td><td> 95k</td><td>103k</td><td></td><td>296k (146k) </td><td>294k (137k) </td><td>306k (147k) </td></tr>
+<tr><td>ed25519-donna 32bit     </td><td></td><td>525k</td><td>299k</td><td>316k</td><td></td><td>1502k (645k)</td><td>959k (418k) </td><td>954k (416k) </td></tr>
+</tbody>
+</table>
+
+#### Compilation
+
+No configuration is needed **if you are compiling against OpenSSL**. 
+
+##### Hash Options
+
+If you are not compiling aginst OpenSSL, you will need a hash function.
+
+To use a simple/**slow** implementation of SHA-512, use `-DED25519_REFHASH` when compiling `ed25519.c`. 
+This should never be used except to verify the code works when OpenSSL is not available.
+
+To use a custom hash function, use `-DED25519_CUSTOMHASH` when compiling `ed25519.c` and put your 
+custom hash implementation in ed25519-hash-custom.h. The hash must have a 512bit digest and implement
+
+	struct ed25519_hash_context;
+
+	void ed25519_hash_init(ed25519_hash_context *ctx);
+	void ed25519_hash_update(ed25519_hash_context *ctx, const uint8_t *in, size_t inlen);
+	void ed25519_hash_final(ed25519_hash_context *ctx, uint8_t *hash);
+	void ed25519_hash(uint8_t *hash, const uint8_t *in, size_t inlen);
+
+##### Random Options
+
+If you are not compiling aginst OpenSSL, you will need a random function for batch verification.
+
+To use a custom random function, use `-DED25519_CUSTOMRANDOM` when compiling `ed25519.c` and put your 
+custom hash implementation in ed25519-randombytes-custom.h. The random function must implement:
+
+	void ED25519_FN(ed25519_randombytes_unsafe) (void *p, size_t len);
+
+Use `-DED25519_TEST` when compiling `ed25519.c` to use a deterministically seeded, non-thread safe CSPRNG 
+variant of Bob Jenkins [ISAAC](http://en.wikipedia.org/wiki/ISAAC_%28cipher%29)
+
+##### Minor options
+
+Use `-DED25519_INLINE_ASM` to disable the use of custom assembler routines and instead rely on portable C.
+
+Use `-DED25519_FORCE_32BIT` to force the use of 32 bit routines even when compiling for 64 bit.
+
+##### 32-bit
+
+	gcc ed25519.c -m32 -O3 -c
+
+##### 64-bit
+
+	gcc ed25519.c -m64 -O3 -c
+
+##### SSE2
+
+	gcc ed25519.c -m32 -O3 -c -DED25519_SSE2 -msse2
+	gcc ed25519.c -m64 -O3 -c -DED25519_SSE2
+
+clang and icc are also supported
+
+
+#### Usage
+
+To use the code, link against `ed25519.o -mbits` and:
+
+	#include "ed25519.h"
+
+Add `-lssl -lcrypto` when using OpenSSL (Some systems don't need -lcrypto? It might be trial and error).
+
+To generate a private key, simply generate 32 bytes from a secure
+cryptographic source:
+
+	ed25519_secret_key sk;
+	randombytes(sk, sizeof(ed25519_secret_key));
+
+To generate a public key:
+
+	ed25519_public_key pk;
+	ed25519_publickey(sk, pk);
+
+To sign a message:
+
+	ed25519_signature sig;
+	ed25519_sign(message, message_len, sk, pk, signature);
+
+To verify a signature:
+
+	int valid = ed25519_sign_open(message, message_len, pk, signature) == 0;
+
+To batch verify signatures:
+
+	const unsigned char *mp[num] = {message1, message2..}
+	size_t ml[num] = {message_len1, message_len2..}
+	const unsigned char *pkp[num] = {pk1, pk2..}
+	const unsigned char *sigp[num] = {signature1, signature2..}
+	int valid[num]
+
+	/* valid[i] will be set to 1 if the individual signature was valid, 0 otherwise */
+	int all_valid = ed25519_sign_open_batch(mp, ml, pkp, sigp, num, valid) == 0;
+
+**Note**: Batch verification uses `ed25519_randombytes_unsafe`, implemented in 
+`ed25519-randombytes.h`, to generate random scalars for the verification code. 
+The default implementation now uses OpenSSLs `RAND_bytes`.
+
+Unlike the [SUPERCOP](http://bench.cr.yp.to/supercop.html) version, signatures are
+not appended to messages, and there is no need for padding in front of messages. 
+Additionally, the secret key does not contain a copy of the public key, so it is 
+32 bytes instead of 64 bytes, and the public key must be provided to the signing
+function.
+
+##### Curve25519
+
+Curve25519 public keys can be generated thanks to 
+[Adam Langley](http://www.imperialviolet.org/2013/05/10/fastercurve25519.html) 
+leveraging Ed25519's precomputed basepoint scalar multiplication.
+
+	curved25519_key sk, pk;
+	randombytes(sk, sizeof(curved25519_key));
+	curved25519_scalarmult_basepoint(pk, sk);
+
+Note the name is curved25519, a combination of curve and ed25519, to prevent 
+name clashes. Performance is slightly faster than short message ed25519
+signing due to both using the same code for the scalar multiply.
+
+#### Testing
+
+Fuzzing against reference implemenations is now available. See [fuzz/README](fuzz/README.md).
+
+Building `ed25519.c` with `-DED25519_TEST` and linking with `test.c` will run basic sanity tests
+and benchmark each function. `test-batch.c` has been incorporated in to `test.c`.
+
+`test-internals.c` is standalone and built the same way as `ed25519.c`. It tests the math primitives
+with extreme values to ensure they function correctly. SSE2 is now supported.
+
+#### Papers
+
+[Available on the Ed25519 website](http://ed25519.cr.yp.to/papers.html)

external/ed25519-donna/curve25519-donna-32bit.h

@@ -0,0 +1,579 @@
+/*
+	Public domain by Andrew M. <liquidsun@gmail.com>
+	See: https://github.com/floodyberry/curve25519-donna
+
+	32 bit integer curve25519 implementation
+*/
+
+typedef uint32_t bignum25519[10];
+typedef uint32_t bignum25519align16[12];
+
+static const uint32_t reduce_mask_25 = (1 << 25) - 1;
+static const uint32_t reduce_mask_26 = (1 << 26) - 1;
+
+
+/* out = in */
+DONNA_INLINE static void
+curve25519_copy(bignum25519 out, const bignum25519 in) {
+	out[0] = in[0];
+	out[1] = in[1];
+	out[2] = in[2];
+	out[3] = in[3];
+	out[4] = in[4];
+	out[5] = in[5];
+	out[6] = in[6];
+	out[7] = in[7];
+	out[8] = in[8];
+	out[9] = in[9];
+}
+
+/* out = a + b */
+DONNA_INLINE static void
+curve25519_add(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	out[0] = a[0] + b[0];
+	out[1] = a[1] + b[1];
+	out[2] = a[2] + b[2];
+	out[3] = a[3] + b[3];
+	out[4] = a[4] + b[4];
+	out[5] = a[5] + b[5];
+	out[6] = a[6] + b[6];
+	out[7] = a[7] + b[7];
+	out[8] = a[8] + b[8];
+	out[9] = a[9] + b[9];
+}
+
+DONNA_INLINE static void 
+curve25519_add_after_basic(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint32_t c;
+	out[0] = a[0] + b[0]    ; c = (out[0] >> 26); out[0] &= reduce_mask_26;
+	out[1] = a[1] + b[1] + c; c = (out[1] >> 25); out[1] &= reduce_mask_25;
+	out[2] = a[2] + b[2] + c; c = (out[2] >> 26); out[2] &= reduce_mask_26;
+	out[3] = a[3] + b[3] + c; c = (out[3] >> 25); out[3] &= reduce_mask_25;
+	out[4] = a[4] + b[4] + c; c = (out[4] >> 26); out[4] &= reduce_mask_26;
+	out[5] = a[5] + b[5] + c; c = (out[5] >> 25); out[5] &= reduce_mask_25;
+	out[6] = a[6] + b[6] + c; c = (out[6] >> 26); out[6] &= reduce_mask_26;
+	out[7] = a[7] + b[7] + c; c = (out[7] >> 25); out[7] &= reduce_mask_25;
+	out[8] = a[8] + b[8] + c; c = (out[8] >> 26); out[8] &= reduce_mask_26;
+	out[9] = a[9] + b[9] + c; c = (out[9] >> 25); out[9] &= reduce_mask_25;
+	out[0] += 19 * c;
+}
+
+DONNA_INLINE static void
+curve25519_add_reduce(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint32_t c;
+	out[0] = a[0] + b[0]    ; c = (out[0] >> 26); out[0] &= reduce_mask_26;
+	out[1] = a[1] + b[1] + c; c = (out[1] >> 25); out[1] &= reduce_mask_25;
+	out[2] = a[2] + b[2] + c; c = (out[2] >> 26); out[2] &= reduce_mask_26;
+	out[3] = a[3] + b[3] + c; c = (out[3] >> 25); out[3] &= reduce_mask_25;
+	out[4] = a[4] + b[4] + c; c = (out[4] >> 26); out[4] &= reduce_mask_26;
+	out[5] = a[5] + b[5] + c; c = (out[5] >> 25); out[5] &= reduce_mask_25;
+	out[6] = a[6] + b[6] + c; c = (out[6] >> 26); out[6] &= reduce_mask_26;
+	out[7] = a[7] + b[7] + c; c = (out[7] >> 25); out[7] &= reduce_mask_25;
+	out[8] = a[8] + b[8] + c; c = (out[8] >> 26); out[8] &= reduce_mask_26;
+	out[9] = a[9] + b[9] + c; c = (out[9] >> 25); out[9] &= reduce_mask_25;
+	out[0] += 19 * c;
+}
+
+/* multiples of p */
+static const uint32_t twoP0       = 0x07ffffda;
+static const uint32_t twoP13579   = 0x03fffffe;
+static const uint32_t twoP2468    = 0x07fffffe;
+static const uint32_t fourP0      = 0x0fffffb4;
+static const uint32_t fourP13579  = 0x07fffffc;
+static const uint32_t fourP2468   = 0x0ffffffc;
+
+/* out = a - b */
+DONNA_INLINE static void
+curve25519_sub(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint32_t c;
+	out[0] = twoP0     + a[0] - b[0]    ; c = (out[0] >> 26); out[0] &= reduce_mask_26;
+	out[1] = twoP13579 + a[1] - b[1] + c; c = (out[1] >> 25); out[1] &= reduce_mask_25;
+	out[2] = twoP2468  + a[2] - b[2] + c; c = (out[2] >> 26); out[2] &= reduce_mask_26;
+	out[3] = twoP13579 + a[3] - b[3] + c; c = (out[3] >> 25); out[3] &= reduce_mask_25;
+	out[4] = twoP2468  + a[4] - b[4] + c;
+	out[5] = twoP13579 + a[5] - b[5]    ;
+	out[6] = twoP2468  + a[6] - b[6]    ;
+	out[7] = twoP13579 + a[7] - b[7]    ;
+	out[8] = twoP2468  + a[8] - b[8]    ;
+	out[9] = twoP13579 + a[9] - b[9]    ;
+}
+
+/* out = a - b, where a is the result of a basic op (add,sub) */
+DONNA_INLINE static void
+curve25519_sub_after_basic(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint32_t c;
+	out[0] = fourP0     + a[0] - b[0]    ; c = (out[0] >> 26); out[0] &= reduce_mask_26;
+	out[1] = fourP13579 + a[1] - b[1] + c; c = (out[1] >> 25); out[1] &= reduce_mask_25;
+	out[2] = fourP2468  + a[2] - b[2] + c; c = (out[2] >> 26); out[2] &= reduce_mask_26;
+	out[3] = fourP13579 + a[3] - b[3] + c; c = (out[3] >> 25); out[3] &= reduce_mask_25;
+	out[4] = fourP2468  + a[4] - b[4] + c; c = (out[4] >> 26); out[4] &= reduce_mask_26;
+	out[5] = fourP13579 + a[5] - b[5] + c; c = (out[5] >> 25); out[5] &= reduce_mask_25;
+	out[6] = fourP2468  + a[6] - b[6] + c; c = (out[6] >> 26); out[6] &= reduce_mask_26;
+	out[7] = fourP13579 + a[7] - b[7] + c; c = (out[7] >> 25); out[7] &= reduce_mask_25;
+	out[8] = fourP2468  + a[8] - b[8] + c; c = (out[8] >> 26); out[8] &= reduce_mask_26;
+	out[9] = fourP13579 + a[9] - b[9] + c; c = (out[9] >> 25); out[9] &= reduce_mask_25;
+	out[0] += 19 * c;
+}
+
+DONNA_INLINE static void
+curve25519_sub_reduce(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint32_t c;
+	out[0] = fourP0     + a[0] - b[0]    ; c = (out[0] >> 26); out[0] &= reduce_mask_26;
+	out[1] = fourP13579 + a[1] - b[1] + c; c = (out[1] >> 25); out[1] &= reduce_mask_25;
+	out[2] = fourP2468  + a[2] - b[2] + c; c = (out[2] >> 26); out[2] &= reduce_mask_26;
+	out[3] = fourP13579 + a[3] - b[3] + c; c = (out[3] >> 25); out[3] &= reduce_mask_25;
+	out[4] = fourP2468  + a[4] - b[4] + c; c = (out[4] >> 26); out[4] &= reduce_mask_26;
+	out[5] = fourP13579 + a[5] - b[5] + c; c = (out[5] >> 25); out[5] &= reduce_mask_25;
+	out[6] = fourP2468  + a[6] - b[6] + c; c = (out[6] >> 26); out[6] &= reduce_mask_26;
+	out[7] = fourP13579 + a[7] - b[7] + c; c = (out[7] >> 25); out[7] &= reduce_mask_25;
+	out[8] = fourP2468  + a[8] - b[8] + c; c = (out[8] >> 26); out[8] &= reduce_mask_26;
+	out[9] = fourP13579 + a[9] - b[9] + c; c = (out[9] >> 25); out[9] &= reduce_mask_25;
+	out[0] += 19 * c;
+}
+
+/* out = -a */
+DONNA_INLINE static void
+curve25519_neg(bignum25519 out, const bignum25519 a) {
+	uint32_t c;
+	out[0] = twoP0     - a[0]    ; c = (out[0] >> 26); out[0] &= reduce_mask_26;
+	out[1] = twoP13579 - a[1] + c; c = (out[1] >> 25); out[1] &= reduce_mask_25;
+	out[2] = twoP2468  - a[2] + c; c = (out[2] >> 26); out[2] &= reduce_mask_26;
+	out[3] = twoP13579 - a[3] + c; c = (out[3] >> 25); out[3] &= reduce_mask_25;
+	out[4] = twoP2468  - a[4] + c; c = (out[4] >> 26); out[4] &= reduce_mask_26;
+	out[5] = twoP13579 - a[5] + c; c = (out[5] >> 25); out[5] &= reduce_mask_25;
+	out[6] = twoP2468  - a[6] + c; c = (out[6] >> 26); out[6] &= reduce_mask_26;
+	out[7] = twoP13579 - a[7] + c; c = (out[7] >> 25); out[7] &= reduce_mask_25;
+	out[8] = twoP2468  - a[8] + c; c = (out[8] >> 26); out[8] &= reduce_mask_26;
+	out[9] = twoP13579 - a[9] + c; c = (out[9] >> 25); out[9] &= reduce_mask_25;
+	out[0] += 19 * c;
+}
+
+/* out = a * b */
+#define curve25519_mul_noinline curve25519_mul
+static void
+curve25519_mul(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint32_t r0,r1,r2,r3,r4,r5,r6,r7,r8,r9;
+	uint32_t s0,s1,s2,s3,s4,s5,s6,s7,s8,s9;
+	uint64_t m0,m1,m2,m3,m4,m5,m6,m7,m8,m9,c;
+	uint32_t p;
+
+	r0 = b[0];
+	r1 = b[1];
+	r2 = b[2];
+	r3 = b[3];
+	r4 = b[4];
+	r5 = b[5];
+	r6 = b[6];
+	r7 = b[7];
+	r8 = b[8];
+	r9 = b[9];
+
+	s0 = a[0];
+	s1 = a[1];
+	s2 = a[2];
+	s3 = a[3];
+	s4 = a[4];
+	s5 = a[5];
+	s6 = a[6];
+	s7 = a[7];
+	s8 = a[8];
+	s9 = a[9];
+
+	m1 = mul32x32_64(r0, s1) + mul32x32_64(r1, s0);
+	m3 = mul32x32_64(r0, s3) + mul32x32_64(r1, s2) + mul32x32_64(r2, s1) + mul32x32_64(r3, s0);
+	m5 = mul32x32_64(r0, s5) + mul32x32_64(r1, s4) + mul32x32_64(r2, s3) + mul32x32_64(r3, s2) + mul32x32_64(r4, s1) + mul32x32_64(r5, s0);
+	m7 = mul32x32_64(r0, s7) + mul32x32_64(r1, s6) + mul32x32_64(r2, s5) + mul32x32_64(r3, s4) + mul32x32_64(r4, s3) + mul32x32_64(r5, s2) + mul32x32_64(r6, s1) + mul32x32_64(r7, s0);
+	m9 = mul32x32_64(r0, s9) + mul32x32_64(r1, s8) + mul32x32_64(r2, s7) + mul32x32_64(r3, s6) + mul32x32_64(r4, s5) + mul32x32_64(r5, s4) + mul32x32_64(r6, s3) + mul32x32_64(r7, s2) + mul32x32_64(r8, s1) + mul32x32_64(r9, s0);
+
+	r1 *= 2;
+	r3 *= 2;
+	r5 *= 2;
+	r7 *= 2;
+
+	m0 = mul32x32_64(r0, s0);
+	m2 = mul32x32_64(r0, s2) + mul32x32_64(r1, s1) + mul32x32_64(r2, s0);
+	m4 = mul32x32_64(r0, s4) + mul32x32_64(r1, s3) + mul32x32_64(r2, s2) + mul32x32_64(r3, s1) + mul32x32_64(r4, s0);
+	m6 = mul32x32_64(r0, s6) + mul32x32_64(r1, s5) + mul32x32_64(r2, s4) + mul32x32_64(r3, s3) + mul32x32_64(r4, s2) + mul32x32_64(r5, s1) + mul32x32_64(r6, s0);
+	m8 = mul32x32_64(r0, s8) + mul32x32_64(r1, s7) + mul32x32_64(r2, s6) + mul32x32_64(r3, s5) + mul32x32_64(r4, s4) + mul32x32_64(r5, s3) + mul32x32_64(r6, s2) + mul32x32_64(r7, s1) + mul32x32_64(r8, s0);
+
+	r1 *= 19;
+	r2 *= 19;
+	r3 = (r3 / 2) * 19;
+	r4 *= 19;
+	r5 = (r5 / 2) * 19;
+	r6 *= 19;
+	r7 = (r7 / 2) * 19;
+	r8 *= 19;
+	r9 *= 19;
+
+	m1 += (mul32x32_64(r9, s2) + mul32x32_64(r8, s3) + mul32x32_64(r7, s4) + mul32x32_64(r6, s5) + mul32x32_64(r5, s6) + mul32x32_64(r4, s7) + mul32x32_64(r3, s8) + mul32x32_64(r2, s9));
+	m3 += (mul32x32_64(r9, s4) + mul32x32_64(r8, s5) + mul32x32_64(r7, s6) + mul32x32_64(r6, s7) + mul32x32_64(r5, s8) + mul32x32_64(r4, s9));
+	m5 += (mul32x32_64(r9, s6) + mul32x32_64(r8, s7) + mul32x32_64(r7, s8) + mul32x32_64(r6, s9));
+	m7 += (mul32x32_64(r9, s8) + mul32x32_64(r8, s9));
+
+	r3 *= 2;
+	r5 *= 2;
+	r7 *= 2;
+	r9 *= 2;
+
+	m0 += (mul32x32_64(r9, s1) + mul32x32_64(r8, s2) + mul32x32_64(r7, s3) + mul32x32_64(r6, s4) + mul32x32_64(r5, s5) + mul32x32_64(r4, s6) + mul32x32_64(r3, s7) + mul32x32_64(r2, s8) + mul32x32_64(r1, s9));
+	m2 += (mul32x32_64(r9, s3) + mul32x32_64(r8, s4) + mul32x32_64(r7, s5) + mul32x32_64(r6, s6) + mul32x32_64(r5, s7) + mul32x32_64(r4, s8) + mul32x32_64(r3, s9));
+	m4 += (mul32x32_64(r9, s5) + mul32x32_64(r8, s6) + mul32x32_64(r7, s7) + mul32x32_64(r6, s8) + mul32x32_64(r5, s9));
+	m6 += (mul32x32_64(r9, s7) + mul32x32_64(r8, s8) + mul32x32_64(r7, s9));
+	m8 += (mul32x32_64(r9, s9));
+
+	                             r0 = (uint32_t)m0 & reduce_mask_26; c = (m0 >> 26);
+	m1 += c;                     r1 = (uint32_t)m1 & reduce_mask_25; c = (m1 >> 25);
+	m2 += c;                     r2 = (uint32_t)m2 & reduce_mask_26; c = (m2 >> 26);
+	m3 += c;                     r3 = (uint32_t)m3 & reduce_mask_25; c = (m3 >> 25);
+	m4 += c;                     r4 = (uint32_t)m4 & reduce_mask_26; c = (m4 >> 26);
+	m5 += c;                     r5 = (uint32_t)m5 & reduce_mask_25; c = (m5 >> 25);
+	m6 += c;                     r6 = (uint32_t)m6 & reduce_mask_26; c = (m6 >> 26);
+	m7 += c;                     r7 = (uint32_t)m7 & reduce_mask_25; c = (m7 >> 25);
+	m8 += c;                     r8 = (uint32_t)m8 & reduce_mask_26; c = (m8 >> 26);
+	m9 += c;                     r9 = (uint32_t)m9 & reduce_mask_25; p = (uint32_t)(m9 >> 25);
+	m0 = r0 + mul32x32_64(p,19); r0 = (uint32_t)m0 & reduce_mask_26; p = (uint32_t)(m0 >> 26);
+	r1 += p;
+
+	out[0] = r0;
+	out[1] = r1;
+	out[2] = r2;
+	out[3] = r3;
+	out[4] = r4;
+	out[5] = r5;
+	out[6] = r6;
+	out[7] = r7;
+	out[8] = r8;
+	out[9] = r9;
+}
+
+/* out = in*in */
+static void
+curve25519_square(bignum25519 out, const bignum25519 in) {
+	uint32_t r0,r1,r2,r3,r4,r5,r6,r7,r8,r9;
+	uint32_t d6,d7,d8,d9;
+	uint64_t m0,m1,m2,m3,m4,m5,m6,m7,m8,m9,c;
+	uint32_t p;
+
+	r0 = in[0];
+	r1 = in[1];
+	r2 = in[2];
+	r3 = in[3];
+	r4 = in[4];
+	r5 = in[5];
+	r6 = in[6];
+	r7 = in[7];
+	r8 = in[8];
+	r9 = in[9];
+
+	m0 = mul32x32_64(r0, r0);
+	r0 *= 2;
+	m1 = mul32x32_64(r0, r1);
+	m2 = mul32x32_64(r0, r2) + mul32x32_64(r1, r1 * 2);
+	r1 *= 2;
+	m3 = mul32x32_64(r0, r3) + mul32x32_64(r1, r2    );
+	m4 = mul32x32_64(r0, r4) + mul32x32_64(r1, r3 * 2) + mul32x32_64(r2, r2);
+	r2 *= 2;
+	m5 = mul32x32_64(r0, r5) + mul32x32_64(r1, r4    ) + mul32x32_64(r2, r3);
+	m6 = mul32x32_64(r0, r6) + mul32x32_64(r1, r5 * 2) + mul32x32_64(r2, r4) + mul32x32_64(r3, r3 * 2);
+	r3 *= 2;
+	m7 = mul32x32_64(r0, r7) + mul32x32_64(r1, r6    ) + mul32x32_64(r2, r5) + mul32x32_64(r3, r4    );
+	m8 = mul32x32_64(r0, r8) + mul32x32_64(r1, r7 * 2) + mul32x32_64(r2, r6) + mul32x32_64(r3, r5 * 2) + mul32x32_64(r4, r4    );
+	m9 = mul32x32_64(r0, r9) + mul32x32_64(r1, r8    ) + mul32x32_64(r2, r7) + mul32x32_64(r3, r6    ) + mul32x32_64(r4, r5 * 2);
+
+	d6 = r6 * 19;
+	d7 = r7 * 2 * 19;
+	d8 = r8 * 19;
+	d9 = r9 * 2 * 19;
+
+	m0 += (mul32x32_64(d9, r1    ) + mul32x32_64(d8, r2    ) + mul32x32_64(d7, r3    ) + mul32x32_64(d6, r4 * 2) + mul32x32_64(r5, r5 * 2 * 19));
+	m1 += (mul32x32_64(d9, r2 / 2) + mul32x32_64(d8, r3    ) + mul32x32_64(d7, r4    ) + mul32x32_64(d6, r5 * 2));
+	m2 += (mul32x32_64(d9, r3    ) + mul32x32_64(d8, r4 * 2) + mul32x32_64(d7, r5 * 2) + mul32x32_64(d6, r6    ));
+	m3 += (mul32x32_64(d9, r4    ) + mul32x32_64(d8, r5 * 2) + mul32x32_64(d7, r6    ));
+	m4 += (mul32x32_64(d9, r5 * 2) + mul32x32_64(d8, r6 * 2) + mul32x32_64(d7, r7    ));
+	m5 += (mul32x32_64(d9, r6    ) + mul32x32_64(d8, r7 * 2));
+	m6 += (mul32x32_64(d9, r7 * 2) + mul32x32_64(d8, r8    ));
+	m7 += (mul32x32_64(d9, r8    ));
+	m8 += (mul32x32_64(d9, r9    ));
+
+	                             r0 = (uint32_t)m0 & reduce_mask_26; c = (m0 >> 26);
+	m1 += c;                     r1 = (uint32_t)m1 & reduce_mask_25; c = (m1 >> 25);
+	m2 += c;                     r2 = (uint32_t)m2 & reduce_mask_26; c = (m2 >> 26);
+	m3 += c;                     r3 = (uint32_t)m3 & reduce_mask_25; c = (m3 >> 25);
+	m4 += c;                     r4 = (uint32_t)m4 & reduce_mask_26; c = (m4 >> 26);
+	m5 += c;                     r5 = (uint32_t)m5 & reduce_mask_25; c = (m5 >> 25);
+	m6 += c;                     r6 = (uint32_t)m6 & reduce_mask_26; c = (m6 >> 26);
+	m7 += c;                     r7 = (uint32_t)m7 & reduce_mask_25; c = (m7 >> 25);
+	m8 += c;                     r8 = (uint32_t)m8 & reduce_mask_26; c = (m8 >> 26);
+	m9 += c;                     r9 = (uint32_t)m9 & reduce_mask_25; p = (uint32_t)(m9 >> 25);
+	m0 = r0 + mul32x32_64(p,19); r0 = (uint32_t)m0 & reduce_mask_26; p = (uint32_t)(m0 >> 26);
+	r1 += p;
+
+	out[0] = r0;
+	out[1] = r1;
+	out[2] = r2;
+	out[3] = r3;
+	out[4] = r4;
+	out[5] = r5;
+	out[6] = r6;
+	out[7] = r7;
+	out[8] = r8;
+	out[9] = r9;
+}
+
+
+/* out = in ^ (2 * count) */
+static void
+curve25519_square_times(bignum25519 out, const bignum25519 in, int count) {
+	uint32_t r0,r1,r2,r3,r4,r5,r6,r7,r8,r9;
+	uint32_t d6,d7,d8,d9;
+	uint64_t m0,m1,m2,m3,m4,m5,m6,m7,m8,m9,c;
+	uint32_t p;
+
+	r0 = in[0];
+	r1 = in[1];
+	r2 = in[2];
+	r3 = in[3];
+	r4 = in[4];
+	r5 = in[5];
+	r6 = in[6];
+	r7 = in[7];
+	r8 = in[8];
+	r9 = in[9];
+
+	do {
+		m0 = mul32x32_64(r0, r0);
+		r0 *= 2;
+		m1 = mul32x32_64(r0, r1);
+		m2 = mul32x32_64(r0, r2) + mul32x32_64(r1, r1 * 2);
+		r1 *= 2;
+		m3 = mul32x32_64(r0, r3) + mul32x32_64(r1, r2    );
+		m4 = mul32x32_64(r0, r4) + mul32x32_64(r1, r3 * 2) + mul32x32_64(r2, r2);
+		r2 *= 2;
+		m5 = mul32x32_64(r0, r5) + mul32x32_64(r1, r4    ) + mul32x32_64(r2, r3);
+		m6 = mul32x32_64(r0, r6) + mul32x32_64(r1, r5 * 2) + mul32x32_64(r2, r4) + mul32x32_64(r3, r3 * 2);
+		r3 *= 2;
+		m7 = mul32x32_64(r0, r7) + mul32x32_64(r1, r6    ) + mul32x32_64(r2, r5) + mul32x32_64(r3, r4    );
+		m8 = mul32x32_64(r0, r8) + mul32x32_64(r1, r7 * 2) + mul32x32_64(r2, r6) + mul32x32_64(r3, r5 * 2) + mul32x32_64(r4, r4    );
+		m9 = mul32x32_64(r0, r9) + mul32x32_64(r1, r8    ) + mul32x32_64(r2, r7) + mul32x32_64(r3, r6    ) + mul32x32_64(r4, r5 * 2);
+
+		d6 = r6 * 19;
+		d7 = r7 * 2 * 19;
+		d8 = r8 * 19;
+		d9 = r9 * 2 * 19;
+
+		m0 += (mul32x32_64(d9, r1    ) + mul32x32_64(d8, r2    ) + mul32x32_64(d7, r3    ) + mul32x32_64(d6, r4 * 2) + mul32x32_64(r5, r5 * 2 * 19));
+		m1 += (mul32x32_64(d9, r2 / 2) + mul32x32_64(d8, r3    ) + mul32x32_64(d7, r4    ) + mul32x32_64(d6, r5 * 2));
+		m2 += (mul32x32_64(d9, r3    ) + mul32x32_64(d8, r4 * 2) + mul32x32_64(d7, r5 * 2) + mul32x32_64(d6, r6    ));
+		m3 += (mul32x32_64(d9, r4    ) + mul32x32_64(d8, r5 * 2) + mul32x32_64(d7, r6    ));
+		m4 += (mul32x32_64(d9, r5 * 2) + mul32x32_64(d8, r6 * 2) + mul32x32_64(d7, r7    ));
+		m5 += (mul32x32_64(d9, r6    ) + mul32x32_64(d8, r7 * 2));
+		m6 += (mul32x32_64(d9, r7 * 2) + mul32x32_64(d8, r8    ));
+		m7 += (mul32x32_64(d9, r8    ));
+		m8 += (mul32x32_64(d9, r9    ));
+
+		                             r0 = (uint32_t)m0 & reduce_mask_26; c = (m0 >> 26);
+		m1 += c;                     r1 = (uint32_t)m1 & reduce_mask_25; c = (m1 >> 25);
+		m2 += c;                     r2 = (uint32_t)m2 & reduce_mask_26; c = (m2 >> 26);
+		m3 += c;                     r3 = (uint32_t)m3 & reduce_mask_25; c = (m3 >> 25);
+		m4 += c;                     r4 = (uint32_t)m4 & reduce_mask_26; c = (m4 >> 26);
+		m5 += c;                     r5 = (uint32_t)m5 & reduce_mask_25; c = (m5 >> 25);
+		m6 += c;                     r6 = (uint32_t)m6 & reduce_mask_26; c = (m6 >> 26);
+		m7 += c;                     r7 = (uint32_t)m7 & reduce_mask_25; c = (m7 >> 25);
+		m8 += c;                     r8 = (uint32_t)m8 & reduce_mask_26; c = (m8 >> 26);
+		m9 += c;                     r9 = (uint32_t)m9 & reduce_mask_25; p = (uint32_t)(m9 >> 25);
+		m0 = r0 + mul32x32_64(p,19); r0 = (uint32_t)m0 & reduce_mask_26; p = (uint32_t)(m0 >> 26);
+		r1 += p;
+	} while (--count);
+
+	out[0] = r0;
+	out[1] = r1;
+	out[2] = r2;
+	out[3] = r3;
+	out[4] = r4;
+	out[5] = r5;
+	out[6] = r6;
+	out[7] = r7;
+	out[8] = r8;
+	out[9] = r9;
+}
+
+/* Take a little-endian, 32-byte number and expand it into polynomial form */
+static void
+curve25519_expand(bignum25519 out, const unsigned char in[32]) {
+	static const union { uint8_t b[2]; uint16_t s; } endian_check = {{1,0}};
+	uint32_t x0,x1,x2,x3,x4,x5,x6,x7;
+
+	if (endian_check.s == 1) {
+		x0 = *(uint32_t *)(in + 0);
+		x1 = *(uint32_t *)(in + 4);
+		x2 = *(uint32_t *)(in + 8);
+		x3 = *(uint32_t *)(in + 12);
+		x4 = *(uint32_t *)(in + 16);
+		x5 = *(uint32_t *)(in + 20);
+		x6 = *(uint32_t *)(in + 24);
+		x7 = *(uint32_t *)(in + 28);
+    } else {
+		#define F(s)                         \
+			((((uint32_t)in[s + 0])      ) | \
+			 (((uint32_t)in[s + 1]) <<  8) | \
+			 (((uint32_t)in[s + 2]) << 16) | \
+			 (((uint32_t)in[s + 3]) << 24))
+		x0 = F(0);
+		x1 = F(4);
+		x2 = F(8);
+		x3 = F(12);
+		x4 = F(16);
+		x5 = F(20);
+		x6 = F(24);
+		x7 = F(28);
+		#undef F
+	}
+
+	out[0] = (                        x0       ) & 0x3ffffff;
+	out[1] = ((((uint64_t)x1 << 32) | x0) >> 26) & 0x1ffffff;
+	out[2] = ((((uint64_t)x2 << 32) | x1) >> 19) & 0x3ffffff;
+	out[3] = ((((uint64_t)x3 << 32) | x2) >> 13) & 0x1ffffff;
+	out[4] = ((                       x3) >>  6) & 0x3ffffff;
+	out[5] = (                        x4       ) & 0x1ffffff;
+	out[6] = ((((uint64_t)x5 << 32) | x4) >> 25) & 0x3ffffff;
+	out[7] = ((((uint64_t)x6 << 32) | x5) >> 19) & 0x1ffffff;
+	out[8] = ((((uint64_t)x7 << 32) | x6) >> 12) & 0x3ffffff;
+	out[9] = ((                       x7) >>  6) & 0x1ffffff;
+}
+
+/* Take a fully reduced polynomial form number and contract it into a
+ * little-endian, 32-byte array
+ */
+static void
+curve25519_contract(unsigned char out[32], const bignum25519 in) {
+	bignum25519 f;
+	curve25519_copy(f, in);
+
+	#define carry_pass() \
+		f[1] += f[0] >> 26; f[0] &= reduce_mask_26; \
+		f[2] += f[1] >> 25; f[1] &= reduce_mask_25; \
+		f[3] += f[2] >> 26; f[2] &= reduce_mask_26; \
+		f[4] += f[3] >> 25; f[3] &= reduce_mask_25; \
+		f[5] += f[4] >> 26; f[4] &= reduce_mask_26; \
+		f[6] += f[5] >> 25; f[5] &= reduce_mask_25; \
+		f[7] += f[6] >> 26; f[6] &= reduce_mask_26; \
+		f[8] += f[7] >> 25; f[7] &= reduce_mask_25; \
+		f[9] += f[8] >> 26; f[8] &= reduce_mask_26;
+
+	#define carry_pass_full() \
+		carry_pass() \
+		f[0] += 19 * (f[9] >> 25); f[9] &= reduce_mask_25;
+
+	#define carry_pass_final() \
+		carry_pass() \
+		f[9] &= reduce_mask_25;
+
+	carry_pass_full()
+	carry_pass_full()
+
+	/* now t is between 0 and 2^255-1, properly carried. */
+	/* case 1: between 0 and 2^255-20. case 2: between 2^255-19 and 2^255-1. */
+	f[0] += 19;
+	carry_pass_full()
+
+	/* now between 19 and 2^255-1 in both cases, and offset by 19. */
+	f[0] += (reduce_mask_26 + 1) - 19;
+	f[1] += (reduce_mask_25 + 1) - 1;
+	f[2] += (reduce_mask_26 + 1) - 1;
+	f[3] += (reduce_mask_25 + 1) - 1;
+	f[4] += (reduce_mask_26 + 1) - 1;
+	f[5] += (reduce_mask_25 + 1) - 1;
+	f[6] += (reduce_mask_26 + 1) - 1;
+	f[7] += (reduce_mask_25 + 1) - 1;
+	f[8] += (reduce_mask_26 + 1) - 1;
+	f[9] += (reduce_mask_25 + 1) - 1;
+
+	/* now between 2^255 and 2^256-20, and offset by 2^255. */
+	carry_pass_final()
+
+	#undef carry_pass
+	#undef carry_full
+	#undef carry_final
+
+	f[1] <<= 2;
+	f[2] <<= 3;
+	f[3] <<= 5;
+	f[4] <<= 6;
+	f[6] <<= 1;
+	f[7] <<= 3;
+	f[8] <<= 4;
+	f[9] <<= 6;
+
+	#define F(i, s) \
+		out[s+0] |= (unsigned char )(f[i] & 0xff); \
+		out[s+1] = (unsigned char )((f[i] >> 8) & 0xff); \
+		out[s+2] = (unsigned char )((f[i] >> 16) & 0xff); \
+		out[s+3] = (unsigned char )((f[i] >> 24) & 0xff);
+
+	out[0] = 0;
+	out[16] = 0;
+	F(0,0);
+	F(1,3);
+	F(2,6);
+	F(3,9);
+	F(4,12);
+	F(5,16);
+	F(6,19);
+	F(7,22);
+	F(8,25);
+	F(9,28);
+	#undef F
+}
+
+
+/* out = (flag) ? in : out */
+DONNA_INLINE static void
+curve25519_move_conditional_bytes(uint8_t out[96], const uint8_t in[96], uint32_t flag) {
+	const uint32_t nb = flag - 1, b = ~nb;
+	const uint32_t *inl = (const uint32_t *)in;
+	uint32_t *outl = (uint32_t *)out;
+	outl[0] = (outl[0] & nb) | (inl[0] & b);
+	outl[1] = (outl[1] & nb) | (inl[1] & b);
+	outl[2] = (outl[2] & nb) | (inl[2] & b);
+	outl[3] = (outl[3] & nb) | (inl[3] & b);
+	outl[4] = (outl[4] & nb) | (inl[4] & b);
+	outl[5] = (outl[5] & nb) | (inl[5] & b);
+	outl[6] = (outl[6] & nb) | (inl[6] & b);
+	outl[7] = (outl[7] & nb) | (inl[7] & b);
+	outl[8] = (outl[8] & nb) | (inl[8] & b);
+	outl[9] = (outl[9] & nb) | (inl[9] & b);
+	outl[10] = (outl[10] & nb) | (inl[10] & b);
+	outl[11] = (outl[11] & nb) | (inl[11] & b);
+	outl[12] = (outl[12] & nb) | (inl[12] & b);
+	outl[13] = (outl[13] & nb) | (inl[13] & b);
+	outl[14] = (outl[14] & nb) | (inl[14] & b);
+	outl[15] = (outl[15] & nb) | (inl[15] & b);
+	outl[16] = (outl[16] & nb) | (inl[16] & b);
+	outl[17] = (outl[17] & nb) | (inl[17] & b);
+	outl[18] = (outl[18] & nb) | (inl[18] & b);
+	outl[19] = (outl[19] & nb) | (inl[19] & b);
+	outl[20] = (outl[20] & nb) | (inl[20] & b);
+	outl[21] = (outl[21] & nb) | (inl[21] & b);
+	outl[22] = (outl[22] & nb) | (inl[22] & b);
+	outl[23] = (outl[23] & nb) | (inl[23] & b);
+
+}
+
+/* if (iswap) swap(a, b) */
+DONNA_INLINE static void
+curve25519_swap_conditional(bignum25519 a, bignum25519 b, uint32_t iswap) {
+	const uint32_t swap = (uint32_t)(-(int32_t)iswap);
+	uint32_t x0,x1,x2,x3,x4,x5,x6,x7,x8,x9;
+
+	x0 = swap & (a[0] ^ b[0]); a[0] ^= x0; b[0] ^= x0;
+	x1 = swap & (a[1] ^ b[1]); a[1] ^= x1; b[1] ^= x1;
+	x2 = swap & (a[2] ^ b[2]); a[2] ^= x2; b[2] ^= x2;
+	x3 = swap & (a[3] ^ b[3]); a[3] ^= x3; b[3] ^= x3;
+	x4 = swap & (a[4] ^ b[4]); a[4] ^= x4; b[4] ^= x4;
+	x5 = swap & (a[5] ^ b[5]); a[5] ^= x5; b[5] ^= x5;
+	x6 = swap & (a[6] ^ b[6]); a[6] ^= x6; b[6] ^= x6;
+	x7 = swap & (a[7] ^ b[7]); a[7] ^= x7; b[7] ^= x7;
+	x8 = swap & (a[8] ^ b[8]); a[8] ^= x8; b[8] ^= x8;
+	x9 = swap & (a[9] ^ b[9]); a[9] ^= x9; b[9] ^= x9;
+}

external/ed25519-donna/curve25519-donna-64bit.h

@@ -0,0 +1,413 @@
+/*
+	Public domain by Adam Langley <agl@imperialviolet.org> &
+	                 Andrew M. <liquidsun@gmail.com>
+	See: https://github.com/floodyberry/curve25519-donna
+
+	64bit integer curve25519 implementation
+*/
+
+typedef uint64_t bignum25519[5];
+
+static const uint64_t reduce_mask_40 = ((uint64_t)1 << 40) - 1;
+static const uint64_t reduce_mask_51 = ((uint64_t)1 << 51) - 1;
+static const uint64_t reduce_mask_56 = ((uint64_t)1 << 56) - 1;
+
+/* out = in */
+DONNA_INLINE static void
+curve25519_copy(bignum25519 out, const bignum25519 in) {
+	out[0] = in[0];
+	out[1] = in[1];
+	out[2] = in[2];
+	out[3] = in[3];
+	out[4] = in[4];
+}
+
+/* out = a + b */
+DONNA_INLINE static void
+curve25519_add(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	out[0] = a[0] + b[0];
+	out[1] = a[1] + b[1];
+	out[2] = a[2] + b[2];
+	out[3] = a[3] + b[3];
+	out[4] = a[4] + b[4];
+}
+
+/* out = a + b, where a and/or b are the result of a basic op (add,sub) */
+DONNA_INLINE static void
+curve25519_add_after_basic(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	out[0] = a[0] + b[0];
+	out[1] = a[1] + b[1];
+	out[2] = a[2] + b[2];
+	out[3] = a[3] + b[3];
+	out[4] = a[4] + b[4];
+}
+
+DONNA_INLINE static void
+curve25519_add_reduce(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint64_t c;
+	out[0] = a[0] + b[0]    ; c = (out[0] >> 51); out[0] &= reduce_mask_51;
+	out[1] = a[1] + b[1] + c; c = (out[1] >> 51); out[1] &= reduce_mask_51;
+	out[2] = a[2] + b[2] + c; c = (out[2] >> 51); out[2] &= reduce_mask_51;
+	out[3] = a[3] + b[3] + c; c = (out[3] >> 51); out[3] &= reduce_mask_51;
+	out[4] = a[4] + b[4] + c; c = (out[4] >> 51); out[4] &= reduce_mask_51;
+	out[0] += c * 19;
+}
+
+/* multiples of p */
+static const uint64_t twoP0      = 0x0fffffffffffda;
+static const uint64_t twoP1234   = 0x0ffffffffffffe;
+static const uint64_t fourP0     = 0x1fffffffffffb4;
+static const uint64_t fourP1234  = 0x1ffffffffffffc;
+
+/* out = a - b */
+DONNA_INLINE static void
+curve25519_sub(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	out[0] = a[0] + twoP0    - b[0];
+	out[1] = a[1] + twoP1234 - b[1];
+	out[2] = a[2] + twoP1234 - b[2];
+	out[3] = a[3] + twoP1234 - b[3];
+	out[4] = a[4] + twoP1234 - b[4];
+}
+
+/* out = a - b, where a and/or b are the result of a basic op (add,sub) */
+DONNA_INLINE static void
+curve25519_sub_after_basic(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	out[0] = a[0] + fourP0    - b[0];
+	out[1] = a[1] + fourP1234 - b[1];
+	out[2] = a[2] + fourP1234 - b[2];
+	out[3] = a[3] + fourP1234 - b[3];
+	out[4] = a[4] + fourP1234 - b[4];
+}
+
+DONNA_INLINE static void
+curve25519_sub_reduce(bignum25519 out, const bignum25519 a, const bignum25519 b) {
+	uint64_t c;
+	out[0] = a[0] + fourP0    - b[0]    ; c = (out[0] >> 51); out[0] &= reduce_mask_51;
+	out[1] = a[1] + fourP1234 - b[1] + c; c = (out[1] >> 51); out[1] &= reduce_mask_51;
+	out[2] = a[2] + fourP1234 - b[2] + c; c = (out[2] >> 51); out[2] &= reduce_mask_51;
+	out[3] = a[3] + fourP1234 - b[3] + c; c = (out[3] >> 51); out[3] &= reduce_mask_51;
+	out[4] = a[4] + fourP1234 - b[4] + c; c = (out[4] >> 51); out[4] &= reduce_mask_51;
+	out[0] += c * 19;
+}
+
+/* out = -a */
+DONNA_INLINE static void
+curve25519_neg(bignum25519 out, const bignum25519 a) {
+	uint64_t c;
+	out[0] = twoP0    - a[0]    ; c = (out[0] >> 51); out[0] &= reduce_mask_51;
+	out[1] = twoP1234 - a[1] + c; c = (out[1] >> 51); out[1] &= reduce_mask_51;
+	out[2] = twoP1234 - a[2] + c; c = (out[2] >> 51); out[2] &= reduce_mask_51;
+	out[3] = twoP1234 - a[3] + c; c = (out[3] >> 51); out[3] &= reduce_mask_51;
+	out[4] = twoP1234 - a[4] + c; c = (out[4] >> 51); out[4] &= reduce_mask_51;
+	out[0] += c * 19;
+}
+
+/* out = a * b */
+DONNA_INLINE static void
+curve25519_mul(bignum25519 out, const bignum25519 in2, const bignum25519 in) {
+#if !defined(HAVE_NATIVE_UINT128)
+	uint128_t mul;
+#endif
+	uint128_t t[5];
+	uint64_t r0,r1,r2,r3,r4,s0,s1,s2,s3,s4,c;
+
+	r0 = in[0];
+	r1 = in[1];
+	r2 = in[2];
+	r3 = in[3];
+	r4 = in[4];
+
+	s0 = in2[0];
+	s1 = in2[1];
+	s2 = in2[2];
+	s3 = in2[3];
+	s4 = in2[4];
+
+#if defined(HAVE_NATIVE_UINT128)
+	t[0]  =  ((uint128_t) r0) * s0;
+	t[1]  =  ((uint128_t) r0) * s1 + ((uint128_t) r1) * s0;
+	t[2]  =  ((uint128_t) r0) * s2 + ((uint128_t) r2) * s0 + ((uint128_t) r1) * s1;
+	t[3]  =  ((uint128_t) r0) * s3 + ((uint128_t) r3) * s0 + ((uint128_t) r1) * s2 + ((uint128_t) r2) * s1;
+	t[4]  =  ((uint128_t) r0) * s4 + ((uint128_t) r4) * s0 + ((uint128_t) r3) * s1 + ((uint128_t) r1) * s3 + ((uint128_t) r2) * s2;
+#else
+	mul64x64_128(t[0], r0, s0)
+	mul64x64_128(t[1], r0, s1) mul64x64_128(mul, r1, s0) add128(t[1], mul)
+	mul64x64_128(t[2], r0, s2) mul64x64_128(mul, r2, s0) add128(t[2], mul) mul64x64_128(mul, r1, s1) add128(t[2], mul)
+	mul64x64_128(t[3], r0, s3) mul64x64_128(mul, r3, s0) add128(t[3], mul) mul64x64_128(mul, r1, s2) add128(t[3], mul) mul64x64_128(mul, r2, s1) add128(t[3], mul)
+	mul64x64_128(t[4], r0, s4) mul64x64_128(mul, r4, s0) add128(t[4], mul) mul64x64_128(mul, r3, s1) add128(t[4], mul) mul64x64_128(mul, r1, s3) add128(t[4], mul) mul64x64_128(mul, r2, s2) add128(t[4], mul)
+#endif
+
+	r1 *= 19;
+	r2 *= 19;
+	r3 *= 19;
+	r4 *= 19;
+
+#if defined(HAVE_NATIVE_UINT128)
+	t[0] += ((uint128_t) r4) * s1 + ((uint128_t) r1) * s4 + ((uint128_t) r2) * s3 + ((uint128_t) r3) * s2;
+	t[1] += ((uint128_t) r4) * s2 + ((uint128_t) r2) * s4 + ((uint128_t) r3) * s3;
+	t[2] += ((uint128_t) r4) * s3 + ((uint128_t) r3) * s4;
+	t[3] += ((uint128_t) r4) * s4;
+#else
+	mul64x64_128(mul, r4, s1) add128(t[0], mul) mul64x64_128(mul, r1, s4) add128(t[0], mul) mul64x64_128(mul, r2, s3) add128(t[0], mul) mul64x64_128(mul, r3, s2) add128(t[0], mul)
+	mul64x64_128(mul, r4, s2) add128(t[1], mul) mul64x64_128(mul, r2, s4) add128(t[1], mul) mul64x64_128(mul, r3, s3) add128(t[1], mul)
+	mul64x64_128(mul, r4, s3) add128(t[2], mul) mul64x64_128(mul, r3, s4) add128(t[2], mul)
+	mul64x64_128(mul, r4, s4) add128(t[3], mul)
+#endif
+
+
+	                     r0 = lo128(t[0]) & reduce_mask_51; shr128(c, t[0], 51);
+	add128_64(t[1], c)   r1 = lo128(t[1]) & reduce_mask_51; shr128(c, t[1], 51);
+	add128_64(t[2], c)   r2 = lo128(t[2]) & reduce_mask_51; shr128(c, t[2], 51);
+	add128_64(t[3], c)   r3 = lo128(t[3]) & reduce_mask_51; shr128(c, t[3], 51);
+	add128_64(t[4], c)   r4 = lo128(t[4]) & reduce_mask_51; shr128(c, t[4], 51);
+	r0 +=   c * 19; c = r0 >> 51; r0 = r0 & reduce_mask_51;
+	r1 +=   c;
+
+	out[0] = r0;
+	out[1] = r1;
+	out[2] = r2;
+	out[3] = r3;
+	out[4] = r4;
+}
+
+DONNA_NOINLINE static void
+curve25519_mul_noinline(bignum25519 out, const bignum25519 in2, const bignum25519 in) {
+	curve25519_mul(out, in2, in);
+}
+
+/* out = in^(2 * count) */
+DONNA_NOINLINE static void
+curve25519_square_times(bignum25519 out, const bignum25519 in, uint64_t count) {
+#if !defined(HAVE_NATIVE_UINT128)
+	uint128_t mul;
+#endif
+	uint128_t t[5];
+	uint64_t r0,r1,r2,r3,r4,c;
+	uint64_t d0,d1,d2,d4,d419;
+
+	r0 = in[0];
+	r1 = in[1];
+	r2 = in[2];
+	r3 = in[3];
+	r4 = in[4];
+
+	do {
+		d0 = r0 * 2;
+		d1 = r1 * 2;
+		d2 = r2 * 2 * 19;
+		d419 = r4 * 19;
+		d4 = d419 * 2;
+
+#if defined(HAVE_NATIVE_UINT128)
+		t[0] = ((uint128_t) r0) * r0 + ((uint128_t) d4) * r1 + (((uint128_t) d2) * (r3     ));
+		t[1] = ((uint128_t) d0) * r1 + ((uint128_t) d4) * r2 + (((uint128_t) r3) * (r3 * 19));
+		t[2] = ((uint128_t) d0) * r2 + ((uint128_t) r1) * r1 + (((uint128_t) d4) * (r3     ));
+		t[3] = ((uint128_t) d0) * r3 + ((uint128_t) d1) * r2 + (((uint128_t) r4) * (d419   ));
+		t[4] = ((uint128_t) d0) * r4 + ((uint128_t) d1) * r3 + (((uint128_t) r2) * (r2     ));
+#else
+		mul64x64_128(t[0], r0, r0) mul64x64_128(mul, d4, r1) add128(t[0], mul) mul64x64_128(mul, d2,      r3) add128(t[0], mul)
+		mul64x64_128(t[1], d0, r1) mul64x64_128(mul, d4, r2) add128(t[1], mul) mul64x64_128(mul, r3, r3 * 19) add128(t[1], mul)
+		mul64x64_128(t[2], d0, r2) mul64x64_128(mul, r1, r1) add128(t[2], mul) mul64x64_128(mul, d4,      r3) add128(t[2], mul)
+		mul64x64_128(t[3], d0, r3) mul64x64_128(mul, d1, r2) add128(t[3], mul) mul64x64_128(mul, r4,    d419) add128(t[3], mul)
+		mul64x64_128(t[4], d0, r4) mul64x64_128(mul, d1, r3) add128(t[4], mul) mul64x64_128(mul, r2,      r2) add128(t[4], mul)
+#endif
+
+		r0 = lo128(t[0]) & reduce_mask_51;
+		r1 = lo128(t[1]) & reduce_mask_51; shl128(c, t[0], 13); r1 += c;
+		r2 = lo128(t[2]) & reduce_mask_51; shl128(c, t[1], 13); r2 += c;
+		r3 = lo128(t[3]) & reduce_mask_51; shl128(c, t[2], 13); r3 += c;
+		r4 = lo128(t[4]) & reduce_mask_51; shl128(c, t[3], 13); r4 += c; 
+		                                   shl128(c, t[4], 13); r0 += c * 19;
+		               c = r0 >> 51; r0 &= reduce_mask_51;
+		r1 += c     ;  c = r1 >> 51; r1 &= reduce_mask_51;
+		r2 += c     ;  c = r2 >> 51; r2 &= reduce_mask_51;
+		r3 += c     ;  c = r3 >> 51; r3 &= reduce_mask_51;
+		r4 += c     ;  c = r4 >> 51; r4 &= reduce_mask_51;
+		r0 += c * 19;
+	} while(--count);
+
+	out[0] = r0;
+	out[1] = r1;
+	out[2] = r2;
+	out[3] = r3;
+	out[4] = r4;
+}
+
+DONNA_INLINE static void
+curve25519_square(bignum25519 out, const bignum25519 in) {
+#if !defined(HAVE_NATIVE_UINT128)
+	uint128_t mul;
+#endif
+	uint128_t t[5];
+	uint64_t r0,r1,r2,r3,r4,c;
+	uint64_t d0,d1,d2,d4,d419;
+
+	r0 = in[0];
+	r1 = in[1];
+	r2 = in[2];
+	r3 = in[3];
+	r4 = in[4];
+
+	d0 = r0 * 2;
+	d1 = r1 * 2;
+	d2 = r2 * 2 * 19;
+	d419 = r4 * 19;
+	d4 = d419 * 2;
+
+#if defined(HAVE_NATIVE_UINT128)
+	t[0] = ((uint128_t) r0) * r0 + ((uint128_t) d4) * r1 + (((uint128_t) d2) * (r3     ));
+	t[1] = ((uint128_t) d0) * r1 + ((uint128_t) d4) * r2 + (((uint128_t) r3) * (r3 * 19));
+	t[2] = ((uint128_t) d0) * r2 + ((uint128_t) r1) * r1 + (((uint128_t) d4) * (r3     ));
+	t[3] = ((uint128_t) d0) * r3 + ((uint128_t) d1) * r2 + (((uint128_t) r4) * (d419   ));
+	t[4] = ((uint128_t) d0) * r4 + ((uint128_t) d1) * r3 + (((uint128_t) r2) * (r2     ));
+#else
+	mul64x64_128(t[0], r0, r0) mul64x64_128(mul, d4, r1) add128(t[0], mul) mul64x64_128(mul, d2,      r3) add128(t[0], mul)
+	mul64x64_128(t[1], d0, r1) mul64x64_128(mul, d4, r2) add128(t[1], mul) mul64x64_128(mul, r3, r3 * 19) add128(t[1], mul)
+	mul64x64_128(t[2], d0, r2) mul64x64_128(mul, r1, r1) add128(t[2], mul) mul64x64_128(mul, d4,      r3) add128(t[2], mul)
+	mul64x64_128(t[3], d0, r3) mul64x64_128(mul, d1, r2) add128(t[3], mul) mul64x64_128(mul, r4,    d419) add128(t[3], mul)
+	mul64x64_128(t[4], d0, r4) mul64x64_128(mul, d1, r3) add128(t[4], mul) mul64x64_128(mul, r2,      r2) add128(t[4], mul)
+#endif
+
+	                     r0 = lo128(t[0]) & reduce_mask_51; shr128(c, t[0], 51);
+	add128_64(t[1], c)   r1 = lo128(t[1]) & reduce_mask_51; shr128(c, t[1], 51);
+	add128_64(t[2], c)   r2 = lo128(t[2]) & reduce_mask_51; shr128(c, t[2], 51);
+	add128_64(t[3], c)   r3 = lo128(t[3]) & reduce_mask_51; shr128(c, t[3], 51);
+	add128_64(t[4], c)   r4 = lo128(t[4]) & reduce_mask_51; shr128(c, t[4], 51);
+	r0 +=   c * 19; c = r0 >> 51; r0 = r0 & reduce_mask_51;
+	r1 +=   c;
+
+	out[0] = r0;
+	out[1] = r1;
+	out[2] = r2;
+	out[3] = r3;
+	out[4] = r4;
+}
+
+/* Take a little-endian, 32-byte number and expand it into polynomial form */
+DONNA_INLINE static void
+curve25519_expand(bignum25519 out, const unsigned char *in) {
+	static const union { uint8_t b[2]; uint16_t s; } endian_check = {{1,0}};
+	uint64_t x0,x1,x2,x3;
+
+	if (endian_check.s == 1) {
+		x0 = *(uint64_t *)(in + 0);
+		x1 = *(uint64_t *)(in + 8);
+		x2 = *(uint64_t *)(in + 16);
+		x3 = *(uint64_t *)(in + 24);
+	} else {
+		#define F(s)                         \
+			((((uint64_t)in[s + 0])      ) | \
+			 (((uint64_t)in[s + 1]) <<  8) | \
+			 (((uint64_t)in[s + 2]) << 16) | \
+			 (((uint64_t)in[s + 3]) << 24) | \
+			 (((uint64_t)in[s + 4]) << 32) | \
+			 (((uint64_t)in[s + 5]) << 40) | \
+			 (((uint64_t)in[s + 6]) << 48) | \
+			 (((uint64_t)in[s + 7]) << 56))
+
+		x0 = F(0);
+		x1 = F(8);
+		x2 = F(16);
+		x3 = F(24);
+	}
+
+	out[0] = x0 & reduce_mask_51; x0 = (x0 >> 51) | (x1 << 13);
+	out[1] = x0 & reduce_mask_51; x1 = (x1 >> 38) | (x2 << 26);
+	out[2] = x1 & reduce_mask_51; x2 = (x2 >> 25) | (x3 << 39);
+	out[3] = x2 & reduce_mask_51; x3 = (x3 >> 12);
+	out[4] = x3 & reduce_mask_51;
+}
+
+/* Take a fully reduced polynomial form number and contract it into a
+ * little-endian, 32-byte array
+ */
+DONNA_INLINE static void
+curve25519_contract(unsigned char *out, const bignum25519 input) {
+	uint64_t t[5];
+	uint64_t f, i;
+
+	t[0] = input[0];
+	t[1] = input[1];
+	t[2] = input[2];
+	t[3] = input[3];
+	t[4] = input[4];
+
+	#define curve25519_contract_carry() \
+		t[1] += t[0] >> 51; t[0] &= reduce_mask_51; \
+		t[2] += t[1] >> 51; t[1] &= reduce_mask_51; \
+		t[3] += t[2] >> 51; t[2] &= reduce_mask_51; \
+		t[4] += t[3] >> 51; t[3] &= reduce_mask_51;
+
+	#define curve25519_contract_carry_full() curve25519_contract_carry() \
+		t[0] += 19 * (t[4] >> 51); t[4] &= reduce_mask_51;
+
+	#define curve25519_contract_carry_final() curve25519_contract_carry() \
+		t[4] &= reduce_mask_51;
+
+	curve25519_contract_carry_full()
+	curve25519_contract_carry_full()
+
+	/* now t is between 0 and 2^255-1, properly carried. */
+	/* case 1: between 0 and 2^255-20. case 2: between 2^255-19 and 2^255-1. */
+	t[0] += 19;
+	curve25519_contract_carry_full()
+
+	/* now between 19 and 2^255-1 in both cases, and offset by 19. */
+	t[0] += (reduce_mask_51 + 1) - 19;
+	t[1] += (reduce_mask_51 + 1) - 1;
+	t[2] += (reduce_mask_51 + 1) - 1;
+	t[3] += (reduce_mask_51 + 1) - 1;
+	t[4] += (reduce_mask_51 + 1) - 1;
+
+	/* now between 2^255 and 2^256-20, and offset by 2^255. */
+	curve25519_contract_carry_final()
+
+	#define write51full(n,shift) \
+		f = ((t[n] >> shift) | (t[n+1] << (51 - shift))); \
+		for (i = 0; i < 8; i++, f >>= 8) *out++ = (unsigned char)f;
+	#define write51(n) write51full(n,13*n)
+	write51(0)
+	write51(1)
+	write51(2)
+	write51(3)
+}
+
+#if !defined(ED25519_GCC_64BIT_CHOOSE)
+
+/* out = (flag) ? in : out */
+DONNA_INLINE static void
+curve25519_move_conditional_bytes(uint8_t out[96], const uint8_t in[96], uint64_t flag) {
+	const uint64_t nb = flag - 1, b = ~nb;
+	const uint64_t *inq = (const uint64_t *)in;
+	uint64_t *outq = (uint64_t *)out;
+	outq[0] = (outq[0] & nb) | (inq[0] & b);
+	outq[1] = (outq[1] & nb) | (inq[1] & b);
+	outq[2] = (outq[2] & nb) | (inq[2] & b);
+	outq[3] = (outq[3] & nb) | (inq[3] & b);
+	outq[4] = (outq[4] & nb) | (inq[4] & b);
+	outq[5] = (outq[5] & nb) | (inq[5] & b);
+	outq[6] = (outq[6] & nb) | (inq[6] & b);
+	outq[7] = (outq[7] & nb) | (inq[7] & b);
+	outq[8] = (outq[8] & nb) | (inq[8] & b);
+	outq[9] = (outq[9] & nb) | (inq[9] & b);
+	outq[10] = (outq[10] & nb) | (inq[10] & b);
+	outq[11] = (outq[11] & nb) | (inq[11] & b);
+}
+
+/* if (iswap) swap(a, b) */
+DONNA_INLINE static void
+curve25519_swap_conditional(bignum25519 a, bignum25519 b, uint64_t iswap) {
+	const uint64_t swap = (uint64_t)(-(int64_t)iswap);
+	uint64_t x0,x1,x2,x3,x4;
+
+	x0 = swap & (a[0] ^ b[0]); a[0] ^= x0; b[0] ^= x0;
+	x1 = swap & (a[1] ^ b[1]); a[1] ^= x1; b[1] ^= x1;
+	x2 = swap & (a[2] ^ b[2]); a[2] ^= x2; b[2] ^= x2;
+	x3 = swap & (a[3] ^ b[3]); a[3] ^= x3; b[3] ^= x3;
+	x4 = swap & (a[4] ^ b[4]); a[4] ^= x4; b[4] ^= x4;
+}
+
+#endif /* ED25519_GCC_64BIT_CHOOSE */
+
+#define ED25519_64BIT_TABLES
+

external/ed25519-donna/curve25519-donna-helpers.h

@@ -0,0 +1,67 @@
+/*
+	Public domain by Andrew M. <liquidsun@gmail.com>
+	See: https://github.com/floodyberry/curve25519-donna
+
+	Curve25519 implementation agnostic helpers
+*/
+
+/*
+ * In:  b =   2^5 - 2^0
+ * Out: b = 2^250 - 2^0
+ */
+static void
+curve25519_pow_two5mtwo0_two250mtwo0(bignum25519 b) {
+	bignum25519 ALIGN(16) t0,c;
+
+	/* 2^5  - 2^0 */ /* b */
+	/* 2^10 - 2^5 */ curve25519_square_times(t0, b, 5);
+	/* 2^10 - 2^0 */ curve25519_mul_noinline(b, t0, b);
+	/* 2^20 - 2^10 */ curve25519_square_times(t0, b, 10);
+	/* 2^20 - 2^0 */ curve25519_mul_noinline(c, t0, b);
+	/* 2^40 - 2^20 */ curve25519_square_times(t0, c, 20);
+	/* 2^40 - 2^0 */ curve25519_mul_noinline(t0, t0, c);
+	/* 2^50 - 2^10 */ curve25519_square_times(t0, t0, 10);
+	/* 2^50 - 2^0 */ curve25519_mul_noinline(b, t0, b);
+	/* 2^100 - 2^50 */ curve25519_square_times(t0, b, 50);
+	/* 2^100 - 2^0 */ curve25519_mul_noinline(c, t0, b);
+	/* 2^200 - 2^100 */ curve25519_square_times(t0, c, 100);
+	/* 2^200 - 2^0 */ curve25519_mul_noinline(t0, t0, c);
+	/* 2^250 - 2^50 */ curve25519_square_times(t0, t0, 50);
+	/* 2^250 - 2^0 */ curve25519_mul_noinline(b, t0, b);
+}
+
+/*
+ * z^(p - 2) = z(2^255 - 21)
+ */
+static void
+curve25519_recip(bignum25519 out, const bignum25519 z) {
+	bignum25519 ALIGN(16) a,t0,b;
+
+	/* 2 */ curve25519_square_times(a, z, 1); /* a = 2 */
+	/* 8 */ curve25519_square_times(t0, a, 2);
+	/* 9 */ curve25519_mul_noinline(b, t0, z); /* b = 9 */
+	/* 11 */ curve25519_mul_noinline(a, b, a); /* a = 11 */
+	/* 22 */ curve25519_square_times(t0, a, 1);
+	/* 2^5 - 2^0 = 31 */ curve25519_mul_noinline(b, t0, b);
+	/* 2^250 - 2^0 */ curve25519_pow_two5mtwo0_two250mtwo0(b);
+	/* 2^255 - 2^5 */ curve25519_square_times(b, b, 5);
+	/* 2^255 - 21 */ curve25519_mul_noinline(out, b, a);
+}
+
+/*
+ * z^((p-5)/8) = z^(2^252 - 3)
+ */
+static void
+curve25519_pow_two252m3(bignum25519 two252m3, const bignum25519 z) {
+	bignum25519 ALIGN(16) b,c,t0;
+
+	/* 2 */ curve25519_square_times(c, z, 1); /* c = 2 */
+	/* 8 */ curve25519_square_times(t0, c, 2); /* t0 = 8 */
+	/* 9 */ curve25519_mul_noinline(b, t0, z); /* b = 9 */
+	/* 11 */ curve25519_mul_noinline(c, b, c); /* c = 11 */
+	/* 22 */ curve25519_square_times(t0, c, 1);
+	/* 2^5 - 2^0 = 31 */ curve25519_mul_noinline(b, t0, b);
+	/* 2^250 - 2^0 */ curve25519_pow_two5mtwo0_two250mtwo0(b);
+	/* 2^252 - 2^2 */ curve25519_square_times(b, b, 2);
+	/* 2^252 - 3 */ curve25519_mul_noinline(two252m3, b, z);
+}

external/ed25519-donna/ed25519-donna-32bit-sse2.h

@@ -0,0 +1,513 @@
+#if defined(ED25519_GCC_32BIT_SSE_CHOOSE)
+
+#define HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS
+
+DONNA_NOINLINE static void
+ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
+	int32_t breg = (int32_t)b;
+	uint32_t sign = (uint32_t)breg >> 31;
+	uint32_t mask = ~(sign - 1);
+	uint32_t u = (breg + mask) ^ mask;
+
+	__asm__ __volatile__ (
+		/* ysubx+xaddy */
+		"movl %0, %%eax                  ;\n"
+		"movd %%eax, %%xmm6              ;\n"
+		"pshufd $0x00, %%xmm6, %%xmm6    ;\n"
+		"pxor %%xmm0, %%xmm0             ;\n"
+		"pxor %%xmm1, %%xmm1             ;\n"
+		"pxor %%xmm2, %%xmm2             ;\n"
+		"pxor %%xmm3, %%xmm3             ;\n"
+
+		/* 0 */
+		"movl $0, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movl $1, %%ecx                  ;\n"
+		"movd %%ecx, %%xmm4              ;\n"
+		"pxor %%xmm5, %%xmm5             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 1 */
+		"movl $1, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 0(%1), %%xmm4            ;\n"
+		"movdqa 16(%1), %%xmm5           ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 32(%1), %%xmm4           ;\n"
+		"movdqa 48(%1), %%xmm5           ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 2 */
+		"movl $2, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 96(%1), %%xmm4           ;\n"
+		"movdqa 112(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 128(%1), %%xmm4          ;\n"
+		"movdqa 144(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 3 */
+		"movl $3, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 192(%1), %%xmm4          ;\n"
+		"movdqa 208(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 224(%1), %%xmm4          ;\n"
+		"movdqa 240(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 4 */
+		"movl $4, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 288(%1), %%xmm4          ;\n"
+		"movdqa 304(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 320(%1), %%xmm4          ;\n"
+		"movdqa 336(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 5 */
+		"movl $5, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 384(%1), %%xmm4          ;\n"
+		"movdqa 400(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 416(%1), %%xmm4          ;\n"
+		"movdqa 432(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 6 */
+		"movl $6, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 480(%1), %%xmm4          ;\n"
+		"movdqa 496(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 512(%1), %%xmm4          ;\n"
+		"movdqa 528(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 7 */
+		"movl $7, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 576(%1), %%xmm4          ;\n"
+		"movdqa 592(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 608(%1), %%xmm4          ;\n"
+		"movdqa 624(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* 8 */
+		"movl $8, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 672(%1), %%xmm4          ;\n"
+		"movdqa 688(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm0              ;\n"
+		"por %%xmm5, %%xmm1              ;\n"
+		"movdqa 704(%1), %%xmm4          ;\n"
+		"movdqa 720(%1), %%xmm5          ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"por %%xmm4, %%xmm2              ;\n"
+		"por %%xmm5, %%xmm3              ;\n"
+
+		/* conditional swap based on sign */
+		"movl %3, %%ecx                  ;\n"
+		"movl %2, %%eax                  ;\n"
+		"xorl $1, %%ecx                  ;\n"
+		"movd %%ecx, %%xmm6              ;\n"
+		"pxor %%xmm7, %%xmm7             ;\n"
+		"pshufd $0x00, %%xmm6, %%xmm6    ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa %%xmm2, %%xmm4           ;\n"
+		"movdqa %%xmm3, %%xmm5           ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"pand %%xmm7, %%xmm5             ;\n"
+		"pxor %%xmm4, %%xmm0             ;\n"
+		"pxor %%xmm5, %%xmm1             ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+
+		/* store ysubx */
+		"movd %%xmm0, %%ecx              ;\n"
+		"movl %%ecx, %%edx               ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 0(%%eax)            ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"shrdl $26, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 4(%%eax)            ;\n"
+		"movd %%xmm0, %%edx              ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"shrdl $19, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 8(%%eax)            ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"shrdl $13, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 12(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrl $6, %%ecx                  ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 16(%%eax)           ;\n"
+		"movl %%edx, %%ecx               ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 20(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrdl $25, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 24(%%eax)           ;\n"
+		"movd %%xmm1, %%ecx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrdl $19, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 28(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"shrdl $12, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 32(%%eax)           ;\n"
+		"shrl $6, %%edx                  ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"xorl %%ecx, %%ecx               ;\n"
+		"movl %%edx, 36(%%eax)           ;\n"
+		"movl %%ecx, 40(%%eax)           ;\n"
+		"movl %%ecx, 44(%%eax)           ;\n"
+
+		/* store xaddy */
+		"addl $48, %%eax                 ;\n"
+		"movdqa %%xmm2, %%xmm0           ;\n"
+		"movdqa %%xmm3, %%xmm1           ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"movl %%ecx, %%edx               ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 0(%%eax)            ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"shrdl $26, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 4(%%eax)            ;\n"
+		"movd %%xmm0, %%edx              ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"shrdl $19, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 8(%%eax)            ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"shrdl $13, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 12(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrl $6, %%ecx                  ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 16(%%eax)           ;\n"
+		"movl %%edx, %%ecx               ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 20(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrdl $25, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 24(%%eax)           ;\n"
+		"movd %%xmm1, %%ecx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrdl $19, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 28(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"shrdl $12, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 32(%%eax)           ;\n"
+		"shrl $6, %%edx                  ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"xorl %%ecx, %%ecx               ;\n"
+		"movl %%edx, 36(%%eax)           ;\n"
+		"movl %%ecx, 40(%%eax)           ;\n"
+		"movl %%ecx, 44(%%eax)           ;\n"
+
+		/* t2d */
+		"movl %0, %%eax                  ;\n"
+		"movd %%eax, %%xmm6              ;\n"
+		"pshufd $0x00, %%xmm6, %%xmm6    ;\n"
+		"pxor %%xmm0, %%xmm0             ;\n"
+		"pxor %%xmm1, %%xmm1             ;\n"
+
+		/* 0 */
+		"movl $0, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"pxor %%xmm0, %%xmm0             ;\n"
+		"pxor %%xmm1, %%xmm1             ;\n"
+
+		/* 1 */
+		"movl $1, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 64(%1), %%xmm3           ;\n"
+		"movdqa 80(%1), %%xmm4           ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 2 */
+		"movl $2, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 160(%1), %%xmm3          ;\n"
+		"movdqa 176(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 3 */
+		"movl $3, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 256(%1), %%xmm3          ;\n"
+		"movdqa 272(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 4 */
+		"movl $4, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 352(%1), %%xmm3          ;\n"
+		"movdqa 368(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 5 */
+		"movl $5, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 448(%1), %%xmm3          ;\n"
+		"movdqa 464(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 6 */
+		"movl $6, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 544(%1), %%xmm3          ;\n"
+		"movdqa 560(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 7 */
+		"movl $7, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 640(%1), %%xmm3          ;\n"
+		"movdqa 656(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* 8 */
+		"movl $8, %%eax                  ;\n"
+		"movd %%eax, %%xmm7              ;\n"
+		"pshufd $0x00, %%xmm7, %%xmm7    ;\n"
+		"pcmpeqd %%xmm6, %%xmm7          ;\n"
+		"movdqa 736(%1), %%xmm3          ;\n"
+		"movdqa 752(%1), %%xmm4          ;\n"
+		"pand %%xmm7, %%xmm3             ;\n"
+		"pand %%xmm7, %%xmm4             ;\n"
+		"por %%xmm3, %%xmm0              ;\n"
+		"por %%xmm4, %%xmm1              ;\n"
+
+		/* store t2d */
+		"movl %2, %%eax                  ;\n"
+		"addl $96, %%eax                 ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"movl %%ecx, %%edx               ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 0(%%eax)            ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"shrdl $26, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 4(%%eax)            ;\n"
+		"movd %%xmm0, %%edx              ;\n"
+		"pshufd $0x39, %%xmm0, %%xmm0    ;\n"
+		"shrdl $19, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 8(%%eax)            ;\n"
+		"movd %%xmm0, %%ecx              ;\n"
+		"shrdl $13, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 12(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrl $6, %%ecx                  ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 16(%%eax)           ;\n"
+		"movl %%edx, %%ecx               ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 20(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrdl $25, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 24(%%eax)           ;\n"
+		"movd %%xmm1, %%ecx              ;\n"
+		"pshufd $0x39, %%xmm1, %%xmm1    ;\n"
+		"shrdl $19, %%ecx, %%edx         ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"movl %%edx, 28(%%eax)           ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"movd %%xmm1, %%edx              ;\n"
+		"shrdl $12, %%edx, %%ecx         ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"movl %%ecx, 32(%%eax)           ;\n"
+		"shrl $6, %%edx                  ;\n"
+		"andl $0x1ffffff, %%edx          ;\n"
+		"xorl %%ecx, %%ecx               ;\n"
+		"movl %%edx, 36(%%eax)           ;\n"
+		"movl %%ecx, 40(%%eax)           ;\n"
+		"movl %%ecx, 44(%%eax)           ;\n"
+		"movdqa 0(%%eax), %%xmm0         ;\n"
+		"movdqa 16(%%eax), %%xmm1        ;\n"
+		"movdqa 32(%%eax), %%xmm2        ;\n"
+
+		/* conditionally negate t2d */
+
+		/* set up 2p in to 3/4 */
+		"movl $0x7ffffda, %%ecx          ;\n"
+		"movl $0x3fffffe, %%edx          ;\n"
+		"movd %%ecx, %%xmm3              ;\n"
+		"movd %%edx, %%xmm5              ;\n"
+		"movl $0x7fffffe, %%ecx          ;\n"
+		"movd %%ecx, %%xmm4              ;\n"
+		"punpckldq %%xmm5, %%xmm3        ;\n"
+		"punpckldq %%xmm5, %%xmm4        ;\n"
+		"punpcklqdq %%xmm4, %%xmm3       ;\n"
+		"movdqa %%xmm4, %%xmm5           ;\n"
+		"punpcklqdq %%xmm4, %%xmm4       ;\n"
+
+		/* subtract and conditionally move */
+		"movl %3, %%ecx                  ;\n"
+		"sub $1, %%ecx                   ;\n"
+		"movd %%ecx, %%xmm6              ;\n"
+		"pshufd $0x00, %%xmm6, %%xmm6    ;\n"
+		"movdqa %%xmm6, %%xmm7           ;\n"
+		"psubd %%xmm0, %%xmm3            ;\n"
+		"psubd %%xmm1, %%xmm4            ;\n"
+		"psubd %%xmm2, %%xmm5            ;\n"
+		"pand %%xmm6, %%xmm0             ;\n"
+		"pand %%xmm6, %%xmm1             ;\n"
+		"pand %%xmm6, %%xmm2             ;\n"
+		"pandn %%xmm3, %%xmm6            ;\n"
+		"movdqa %%xmm7, %%xmm3           ;\n"
+		"pandn %%xmm4, %%xmm7            ;\n"
+		"pandn %%xmm5, %%xmm3            ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm3, %%xmm2              ;\n"
+
+		/* store */
+		"movdqa %%xmm0, 0(%%eax)         ;\n"
+		"movdqa %%xmm1, 16(%%eax)        ;\n"
+		"movdqa %%xmm2, 32(%%eax)        ;\n"
+		:
+		: "m"(u), "r"(&table[pos * 8]), "m"(t), "m"(sign) /* %0 = u, %1 = table, %2 = t, %3 = sign */
+		: "%eax", "%ecx", "%edx", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "cc", "memory"
+	);
+}
+
+#endif /* defined(ED25519_GCC_32BIT_SSE_CHOOSE) */
+

external/ed25519-donna/ed25519-donna-32bit-tables.h

@@ -0,0 +1,61 @@
+static const ge25519 ALIGN(16) ge25519_basepoint = {
+	{0x0325d51a,0x018b5823,0x00f6592a,0x0104a92d,0x01a4b31d,0x01d6dc5c,0x027118fe,0x007fd814,0x013cd6e5,0x0085a4db},
+	{0x02666658,0x01999999,0x00cccccc,0x01333333,0x01999999,0x00666666,0x03333333,0x00cccccc,0x02666666,0x01999999},
+	{0x00000001,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000},
+	{0x01b7dda3,0x01a2ace9,0x025eadbb,0x0003ba8a,0x0083c27e,0x00abe37d,0x01274732,0x00ccacdd,0x00fd78b7,0x019e1d7c}
+};
+
+/*
+	d
+*/
+
+static const bignum25519 ALIGN(16) ge25519_ecd = {
+	0x035978a3,0x00d37284,0x03156ebd,0x006a0a0e,0x0001c029,0x0179e898,0x03a03cbb,0x01ce7198,0x02e2b6ff,0x01480db3
+};
+
+static const bignum25519 ALIGN(16) ge25519_ec2d = {
+	0x02b2f159,0x01a6e509,0x022add7a,0x00d4141d,0x00038052,0x00f3d130,0x03407977,0x019ce331,0x01c56dff,0x00901b67
+};
+
+/*
+	sqrt(-1)
+*/
+
+static const bignum25519 ALIGN(16) ge25519_sqrtneg1 = {
+	0x020ea0b0,0x0186c9d2,0x008f189d,0x0035697f,0x00bd0c60,0x01fbd7a7,0x02804c9e,0x01e16569,0x0004fc1d,0x00ae0c92
+};
+
+static const ge25519_niels ALIGN(16) ge25519_niels_sliding_multiples[32] = {
+	{{0x0340913e,0x000e4175,0x03d673a2,0x002e8a05,0x03f4e67c,0x008f8a09,0x00c21a34,0x004cf4b8,0x01298f81,0x0113f4be},{0x018c3b85,0x0124f1bd,0x01c325f7,0x0037dc60,0x033e4cb7,0x003d42c2,0x01a44c32,0x014ca4e1,0x03a33d4b,0x001f3e74},{0x037aaa68,0x00448161,0x0093d579,0x011e6556,0x009b67a0,0x0143598c,0x01bee5ee,0x00b50b43,0x0289f0c6,0x01bc45ed}},
+	{{0x00fcd265,0x0047fa29,0x034faacc,0x01ef2e0d,0x00ef4d4f,0x014bd6bd,0x00f98d10,0x014c5026,0x007555bd,0x00aae456},{0x00ee9730,0x016c2a13,0x017155e4,0x01874432,0x00096a10,0x01016732,0x01a8014f,0x011e9823,0x01b9a80f,0x01e85938},{0x01d0d889,0x01a4cfc3,0x034c4295,0x0110e1ae,0x0162508c,0x00f2db4c,0x0072a2c6,0x0098da2e,0x02f12b9b,0x0168a09a}},
+	{{0x0047d6ba,0x0060b0e9,0x0136eff2,0x008a5939,0x03540053,0x0064a087,0x02788e5c,0x00be7c67,0x033eb1b5,0x005529f9},{0x00a5bb33,0x00af1102,0x01a05442,0x001e3af7,0x02354123,0x00bfec44,0x01f5862d,0x00dd7ba3,0x03146e20,0x00a51733},{0x012a8285,0x00f6fc60,0x023f9797,0x003e85ee,0x009c3820,0x01bda72d,0x01b3858d,0x00d35683,0x0296b3bb,0x010eaaf9}},
+	{{0x023221b1,0x01cb26aa,0x0074f74d,0x0099ddd1,0x01b28085,0x00192c3a,0x013b27c9,0x00fc13bd,0x01d2e531,0x0075bb75},{0x004ea3bf,0x00973425,0x001a4d63,0x01d59cee,0x01d1c0d4,0x00542e49,0x01294114,0x004fce36,0x029283c9,0x01186fa9},{0x01b8b3a2,0x00db7200,0x00935e30,0x003829f5,0x02cc0d7d,0x0077adf3,0x0220dd2c,0x0014ea53,0x01c6a0f9,0x01ea7eec}},
+	{{0x039d8064,0x01885f80,0x00337e6d,0x01b7a902,0x02628206,0x015eb044,0x01e30473,0x0191f2d9,0x011fadc9,0x01270169},{0x02a8632f,0x0199e2a9,0x00d8b365,0x017a8de2,0x02994279,0x0086f5b5,0x0119e4e3,0x01eb39d6,0x0338add7,0x00d2e7b4},{0x0045af1b,0x013a2fe4,0x0245e0d6,0x014538ce,0x038bfe0f,0x01d4cf16,0x037e14c9,0x0160d55e,0x0021b008,0x01cf05c8}},
+	{{0x01864348,0x01d6c092,0x0070262b,0x014bb844,0x00fb5acd,0x008deb95,0x003aaab5,0x00eff474,0x00029d5c,0x0062ad66},{0x02802ade,0x01c02122,0x01c4e5f7,0x00781181,0x039767fb,0x01703406,0x0342388b,0x01f5e227,0x022546d8,0x0109d6ab},{0x016089e9,0x00cb317f,0x00949b05,0x01099417,0x000c7ad2,0x011a8622,0x0088ccda,0x01290886,0x022b53df,0x00f71954}},
+	{{0x027fbf93,0x01c04ecc,0x01ed6a0d,0x004cdbbb,0x02bbf3af,0x00ad5968,0x01591955,0x0094f3a2,0x02d17602,0x00099e20},{0x02007f6d,0x003088a8,0x03db77ee,0x00d5ade6,0x02fe12ce,0x0107ba07,0x0107097d,0x00482a6f,0x02ec346f,0x008d3f5f},{0x032ea378,0x0028465c,0x028e2a6c,0x018efc6e,0x0090df9a,0x01a7e533,0x039bfc48,0x010c745d,0x03daa097,0x0125ee9b}},
+	{{0x028ccf0b,0x00f36191,0x021ac081,0x012154c8,0x034e0a6e,0x01b25192,0x00180403,0x01d7eea1,0x00218d05,0x010ed735},{0x03cfeaa0,0x01b300c4,0x008da499,0x0068c4e1,0x0219230a,0x01f2d4d0,0x02defd60,0x00e565b7,0x017f12de,0x018788a4},{0x03d0b516,0x009d8be6,0x03ddcbb3,0x0071b9fe,0x03ace2bd,0x01d64270,0x032d3ec9,0x01084065,0x0210ae4d,0x01447584}},
+	{{0x0020de87,0x00e19211,0x01b68102,0x00b5ac97,0x022873c0,0x01942d25,0x01271394,0x0102073f,0x02fe2482,0x01c69ff9},{0x010e9d81,0x019dbbe5,0x0089f258,0x006e06b8,0x02951883,0x018f1248,0x019b3237,0x00bc7553,0x024ddb85,0x01b4c964},{0x01c8c854,0x0060ae29,0x01406d8e,0x01cff2f9,0x00cff451,0x01778d0c,0x03ac8c41,0x01552e59,0x036559ee,0x011d1b12}},
+	{{0x00741147,0x0151b219,0x01092690,0x00e877e6,0x01f4d6bb,0x0072a332,0x01cd3b03,0x00dadff2,0x0097db5e,0x0086598d},{0x01c69a2b,0x01decf1b,0x02c2fa6e,0x013b7c4f,0x037beac8,0x013a16b5,0x028e7bda,0x01f6e8ac,0x01e34fe9,0x01726947},{0x01f10e67,0x003c73de,0x022b7ea2,0x010f32c2,0x03ff776a,0x00142277,0x01d38b88,0x00776138,0x03c60822,0x01201140}},
+	{{0x0236d175,0x0008748e,0x03c6476d,0x013f4cdc,0x02eed02a,0x00838a47,0x032e7210,0x018bcbb3,0x00858de4,0x01dc7826},{0x00a37fc7,0x0127b40b,0x01957884,0x011d30ad,0x02816683,0x016e0e23,0x00b76be4,0x012db115,0x02516506,0x0154ce62},{0x00451edf,0x00bd749e,0x03997342,0x01cc2c4c,0x00eb6975,0x01a59508,0x03a516cf,0x00c228ef,0x0168ff5a,0x01697b47}},
+	{{0x00527359,0x01783156,0x03afd75c,0x00ce56dc,0x00e4b970,0x001cabe9,0x029e0f6d,0x0188850c,0x0135fefd,0x00066d80},{0x02150e83,0x01448abf,0x02bb0232,0x012bf259,0x033c8268,0x00711e20,0x03fc148f,0x005e0e70,0x017d8bf9,0x0112b2e2},{0x02134b83,0x001a0517,0x0182c3cc,0x00792182,0x0313d799,0x001a3ed7,0x0344547e,0x01f24a0d,0x03de6ad2,0x00543127}},
+	{{0x00dca868,0x00618f27,0x015a1709,0x00ddc38a,0x0320fd13,0x0036168d,0x0371ab06,0x01783fc7,0x0391e05f,0x01e29b5d},{0x01471138,0x00fca542,0x00ca31cf,0x01ca7bad,0x0175bfbc,0x01a708ad,0x03bce212,0x01244215,0x0075bb99,0x01acad68},{0x03a0b976,0x01dc12d1,0x011aab17,0x00aba0ba,0x029806cd,0x0142f590,0x018fd8ea,0x01a01545,0x03c4ad55,0x01c971ff}},
+	{{0x00d098c0,0x000afdc7,0x006cd230,0x01276af3,0x03f905b2,0x0102994c,0x002eb8a4,0x015cfbeb,0x025f855f,0x01335518},{0x01cf99b2,0x0099c574,0x01a69c88,0x00881510,0x01cd4b54,0x0112109f,0x008abdc5,0x0074647a,0x0277cb1f,0x01e53324},{0x02ac5053,0x01b109b0,0x024b095e,0x016997b3,0x02f26bb6,0x00311021,0x00197885,0x01d0a55a,0x03b6fcc8,0x01c020d5}},
+	{{0x02584a34,0x00e7eee0,0x03257a03,0x011e95a3,0x011ead91,0x00536202,0x00b1ce24,0x008516c6,0x03669d6d,0x004ea4a8},{0x00773f01,0x0019c9ce,0x019f6171,0x01d4afde,0x02e33323,0x01ad29b6,0x02ead1dc,0x01ed51a5,0x01851ad0,0x001bbdfa},{0x00577de5,0x00ddc730,0x038b9952,0x00f281ae,0x01d50390,0x0002e071,0x000780ec,0x010d448d,0x01f8a2af,0x00f0a5b7}},
+	{{0x031f2541,0x00d34bae,0x0323ff9d,0x003a056d,0x02e25443,0x00a1ad05,0x00d1bee8,0x002f7f8e,0x03007477,0x002a24b1},{0x0114a713,0x01457e76,0x032255d5,0x01cc647f,0x02a4bdef,0x0153d730,0x00118bcf,0x00f755ff,0x013490c7,0x01ea674e},{0x02bda3e8,0x00bb490d,0x00f291ea,0x000abf40,0x01dea321,0x002f9ce0,0x00b2b193,0x00fa54b5,0x0128302f,0x00a19d8b}},
+	{{0x022ef5bd,0x01638af3,0x038c6f8a,0x01a33a3d,0x039261b2,0x01bb89b8,0x010bcf9d,0x00cf42a9,0x023d6f17,0x01da1bca},{0x00e35b25,0x000d824f,0x0152e9cf,0x00ed935d,0x020b8460,0x01c7b83f,0x00c969e5,0x01a74198,0x0046a9d9,0x00cbc768},{0x01597c6a,0x0144a99b,0x00a57551,0x0018269c,0x023c464c,0x0009b022,0x00ee39e1,0x0114c7f2,0x038a9ad2,0x01584c17}},
+	{{0x03b0c0d5,0x00b30a39,0x038a6ce4,0x01ded83a,0x01c277a6,0x01010a61,0x0346d3eb,0x018d995e,0x02f2c57c,0x000c286b},{0x0092aed1,0x0125e37b,0x027ca201,0x001a6b6b,0x03290f55,0x0047ba48,0x018d916c,0x01a59062,0x013e35d4,0x0002abb1},{0x003ad2aa,0x007ddcc0,0x00c10f76,0x0001590b,0x002cfca6,0x000ed23e,0x00ee4329,0x00900f04,0x01c24065,0x0082fa70}},
+	{{0x02025e60,0x003912b8,0x0327041c,0x017e5ee5,0x02c0ecec,0x015a0d1c,0x02b1ce7c,0x0062220b,0x0145067e,0x01a5d931},{0x009673a6,0x00e1f609,0x00927c2a,0x016faa37,0x01650ef0,0x016f63b5,0x03cd40e1,0x003bc38f,0x0361f0ac,0x01d42acc},{0x02f81037,0x008ca0e8,0x017e23d1,0x011debfe,0x01bcbb68,0x002e2563,0x03e8add6,0x000816e5,0x03fb7075,0x0153e5ac}},
+	{{0x02b11ecd,0x016bf185,0x008f22ef,0x00e7d2bb,0x0225d92e,0x00ece785,0x00508873,0x017e16f5,0x01fbe85d,0x01e39a0e},{0x01669279,0x017c810a,0x024941f5,0x0023ebeb,0x00eb7688,0x005760f1,0x02ca4146,0x0073cde7,0x0052bb75,0x00f5ffa7},{0x03b8856b,0x00cb7dcd,0x02f14e06,0x001820d0,0x01d74175,0x00e59e22,0x03fba550,0x00484641,0x03350088,0x01c3c9a3}},
+	{{0x00dcf355,0x0104481c,0x0022e464,0x01f73fe7,0x00e03325,0x0152b698,0x02ef769a,0x00973663,0x00039b8c,0x0101395b},{0x01805f47,0x019160ec,0x03832cd0,0x008b06eb,0x03d4d717,0x004cb006,0x03a75b8f,0x013b3d30,0x01cfad88,0x01f034d1},{0x0078338a,0x01c7d2e3,0x02bc2b23,0x018b3f05,0x0280d9aa,0x005f3d44,0x0220a95a,0x00eeeb97,0x0362aaec,0x00835d51}},
+	{{0x01b9f543,0x013fac4d,0x02ad93ae,0x018ef464,0x0212cdf7,0x01138ba9,0x011583ab,0x019c3d26,0x028790b4,0x00e2e2b6},{0x033bb758,0x01f0dbf1,0x03734bd1,0x0129b1e5,0x02b3950e,0x003bc922,0x01a53ec8,0x018c5532,0x006f3cee,0x00ae3c79},{0x0351f95d,0x0012a737,0x03d596b8,0x017658fe,0x00ace54a,0x008b66da,0x0036c599,0x012a63a2,0x032ceba1,0x00126bac}},
+	{{0x03dcfe7e,0x019f4f18,0x01c81aee,0x0044bc2b,0x00827165,0x014f7c13,0x03b430f0,0x00bf96cc,0x020c8d62,0x01471997},{0x01fc7931,0x001f42dd,0x00ba754a,0x005bd339,0x003fbe49,0x016b3930,0x012a159c,0x009f83b0,0x03530f67,0x01e57b85},{0x02ecbd81,0x0096c294,0x01fce4a9,0x017701a5,0x0175047d,0x00ee4a31,0x012686e5,0x008efcd4,0x0349dc54,0x01b3466f}},
+	{{0x02179ca3,0x01d86414,0x03f0afd0,0x00305964,0x015c7428,0x0099711e,0x015d5442,0x00c71014,0x01b40b2e,0x01d483cf},{0x01afc386,0x01984859,0x036203ff,0x0045c6a8,0x0020a8aa,0x00990baa,0x03313f10,0x007ceede,0x027429e4,0x017806ce},{0x039357a1,0x0142f8f4,0x0294a7b6,0x00eaccf4,0x0259edb3,0x01311e6e,0x004d326f,0x0130c346,0x01ccef3c,0x01c424b2}},
+	{{0x0364918c,0x00148fc0,0x01638a7b,0x01a1fd5b,0x028ad013,0x0081e5a4,0x01a54f33,0x0174e101,0x003d0257,0x003a856c},{0x00051dcf,0x00f62b1d,0x0143d0ad,0x0042adbd,0x000fda90,0x01743ceb,0x0173e5e4,0x017bc749,0x03b7137a,0x0105ce96},{0x00f9218a,0x015b8c7c,0x00e102f8,0x0158d7e2,0x0169a5b8,0x00b2f176,0x018b347a,0x014cfef2,0x0214a4e3,0x017f1595}},
+	{{0x006d7ae5,0x0195c371,0x0391e26d,0x0062a7c6,0x003f42ab,0x010dad86,0x024f8198,0x01542b2a,0x0014c454,0x0189c471},{0x0390988e,0x00b8799d,0x02e44912,0x0078e2e6,0x00075654,0x01923eed,0x0040cd72,0x00a37c76,0x0009d466,0x00c8531d},{0x02651770,0x00609d01,0x0286c265,0x0134513c,0x00ee9281,0x005d223c,0x035c760c,0x00679b36,0x0073ecb8,0x016faa50}},
+	{{0x02c89be4,0x016fc244,0x02f38c83,0x018beb72,0x02b3ce2c,0x0097b065,0x034f017b,0x01dd957f,0x00148f61,0x00eab357},{0x0343d2f8,0x003398fc,0x011e368e,0x00782a1f,0x00019eea,0x00117b6f,0x0128d0d1,0x01a5e6bb,0x01944f1b,0x012b41e1},{0x03318301,0x018ecd30,0x0104d0b1,0x0038398b,0x03726701,0x019da88c,0x002d9769,0x00a7a681,0x031d9028,0x00ebfc32}},
+	{{0x0220405e,0x0171face,0x02d930f8,0x017f6d6a,0x023b8c47,0x0129d5f9,0x02972456,0x00a3a524,0x006f4cd2,0x004439fa},{0x00c53505,0x0190c2fd,0x00507244,0x009930f9,0x01a39270,0x01d327c6,0x0399bc47,0x01cfe13d,0x0332bd99,0x00b33e7d},{0x0203f5e4,0x003627b5,0x00018af8,0x01478581,0x004a2218,0x002e3bb7,0x039384d0,0x0146ea62,0x020b9693,0x0017155f}},
+	{{0x03c97e6f,0x00738c47,0x03b5db1f,0x01808fcf,0x01e8fc98,0x01ed25dd,0x01bf5045,0x00eb5c2b,0x0178fe98,0x01b85530},{0x01c20eb0,0x01aeec22,0x030b9eee,0x01b7d07e,0x0187e16f,0x014421fb,0x009fa731,0x0040b6d7,0x00841861,0x00a27fbc},{0x02d69abf,0x0058cdbf,0x0129f9ec,0x013c19ae,0x026c5b93,0x013a7fe7,0x004bb2ba,0x0063226f,0x002a95ca,0x01abefd9}},
+	{{0x02f5d2c1,0x00378318,0x03734fb5,0x01258073,0x0263f0f6,0x01ad70e0,0x01b56d06,0x01188fbd,0x011b9503,0x0036d2e1},{0x0113a8cc,0x01541c3e,0x02ac2bbc,0x01d95867,0x01f47459,0x00ead489,0x00ab5b48,0x01db3b45,0x00edb801,0x004b024f},{0x00b8190f,0x011fe4c2,0x00621f82,0x010508d7,0x001a5a76,0x00c7d7fd,0x03aab96d,0x019cd9dc,0x019c6635,0x00ceaa1e}},
+	{{0x01085cf2,0x01fd47af,0x03e3f5e1,0x004b3e99,0x01e3d46a,0x0060033c,0x015ff0a8,0x0150cdd8,0x029e8e21,0x008cf1bc},{0x00156cb1,0x003d623f,0x01a4f069,0x00d8d053,0x01b68aea,0x01ca5ab6,0x0316ae43,0x0134dc44,0x001c8d58,0x0084b343},{0x0318c781,0x0135441f,0x03a51a5e,0x019293f4,0x0048bb37,0x013d3341,0x0143151e,0x019c74e1,0x00911914,0x0076ddde}},
+	{{0x006bc26f,0x00d48e5f,0x00227bbe,0x00629ea8,0x01ea5f8b,0x0179a330,0x027a1d5f,0x01bf8f8e,0x02d26e2a,0x00c6b65e},{0x01701ab6,0x0051da77,0x01b4b667,0x00a0ce7c,0x038ae37b,0x012ac852,0x03a0b0fe,0x0097c2bb,0x00a017d2,0x01eb8b2a},{0x0120b962,0x0005fb42,0x0353b6fd,0x0061f8ce,0x007a1463,0x01560a64,0x00e0a792,0x01907c92,0x013a6622,0x007b47f1}}
+};

external/ed25519-donna/ed25519-donna-64bit-sse2.h

@@ -0,0 +1,436 @@
+#if defined(ED25519_GCC_64BIT_SSE_CHOOSE)
+
+#define HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS
+
+DONNA_NOINLINE static void
+ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
+	int64_t breg = (int64_t)b;
+	uint64_t sign = (uint64_t)breg >> 63;
+	uint64_t mask = ~(sign - 1);
+	uint64_t u = (breg + mask) ^ mask;
+
+	__asm__ __volatile__ (
+		/* ysubx+xaddy+t2d */
+		"movq %0, %%rax                  ;\n"
+		"movd %%rax, %%xmm14             ;\n"
+		"pshufd $0x00, %%xmm14, %%xmm14  ;\n"
+		"pxor %%xmm0, %%xmm0             ;\n"
+		"pxor %%xmm1, %%xmm1             ;\n"
+		"pxor %%xmm2, %%xmm2             ;\n"
+		"pxor %%xmm3, %%xmm3             ;\n"
+		"pxor %%xmm4, %%xmm4             ;\n"
+		"pxor %%xmm5, %%xmm5             ;\n"
+
+		/* 0 */
+		"movq $0, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm6              ;\n"
+		"pxor %%xmm7, %%xmm7             ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm6, %%xmm2              ;\n"
+		"por %%xmm7, %%xmm3              ;\n"
+
+		/* 1 */
+		"movq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 0(%1), %%xmm6            ;\n"
+		"movdqa 16(%1), %%xmm7           ;\n"
+		"movdqa 32(%1), %%xmm8           ;\n"
+		"movdqa 48(%1), %%xmm9           ;\n"
+		"movdqa 64(%1), %%xmm10          ;\n"
+		"movdqa 80(%1), %%xmm11          ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 2 */
+		"movq $2, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 96(%1), %%xmm6           ;\n"
+		"movdqa 112(%1), %%xmm7          ;\n"
+		"movdqa 128(%1), %%xmm8          ;\n"
+		"movdqa 144(%1), %%xmm9          ;\n"
+		"movdqa 160(%1), %%xmm10         ;\n"
+		"movdqa 176(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 3 */
+		"movq $3, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 192(%1), %%xmm6          ;\n"
+		"movdqa 208(%1), %%xmm7          ;\n"
+		"movdqa 224(%1), %%xmm8          ;\n"
+		"movdqa 240(%1), %%xmm9          ;\n"
+		"movdqa 256(%1), %%xmm10         ;\n"
+		"movdqa 272(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 4 */
+		"movq $4, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 288(%1), %%xmm6          ;\n"
+		"movdqa 304(%1), %%xmm7          ;\n"
+		"movdqa 320(%1), %%xmm8          ;\n"
+		"movdqa 336(%1), %%xmm9          ;\n"
+		"movdqa 352(%1), %%xmm10         ;\n"
+		"movdqa 368(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 5 */
+		"movq $5, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 384(%1), %%xmm6          ;\n"
+		"movdqa 400(%1), %%xmm7          ;\n"
+		"movdqa 416(%1), %%xmm8          ;\n"
+		"movdqa 432(%1), %%xmm9          ;\n"
+		"movdqa 448(%1), %%xmm10         ;\n"
+		"movdqa 464(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 6 */
+		"movq $6, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 480(%1), %%xmm6          ;\n"
+		"movdqa 496(%1), %%xmm7          ;\n"
+		"movdqa 512(%1), %%xmm8          ;\n"
+		"movdqa 528(%1), %%xmm9          ;\n"
+		"movdqa 544(%1), %%xmm10         ;\n"
+		"movdqa 560(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 7 */
+		"movq $7, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 576(%1), %%xmm6          ;\n"
+		"movdqa 592(%1), %%xmm7          ;\n"
+		"movdqa 608(%1), %%xmm8          ;\n"
+		"movdqa 624(%1), %%xmm9          ;\n"
+		"movdqa 640(%1), %%xmm10         ;\n"
+		"movdqa 656(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 8 */
+		"movq $8, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 672(%1), %%xmm6          ;\n"
+		"movdqa 688(%1), %%xmm7          ;\n"
+		"movdqa 704(%1), %%xmm8          ;\n"
+		"movdqa 720(%1), %%xmm9          ;\n"
+		"movdqa 736(%1), %%xmm10         ;\n"
+		"movdqa 752(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* conditionally swap ysubx and xaddy */
+		"movq %3, %%rax                  ;\n"
+		"xorq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm14             ;\n"
+		"pxor %%xmm15, %%xmm15           ;\n"
+		"pshufd $0x00, %%xmm14, %%xmm14  ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa %%xmm2, %%xmm6           ;\n"
+		"movdqa %%xmm3, %%xmm7           ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pxor %%xmm6, %%xmm0             ;\n"
+		"pxor %%xmm7, %%xmm1             ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+
+		/* store ysubx */
+		"xorq %%rax, %%rax               ;\n"
+		"movd %%xmm0, %%rcx              ;\n"
+		"movd %%xmm0, %%r8               ;\n"
+		"movd %%xmm1, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm0, %%xmm0    ;\n"
+		"pshufd $0xee, %%xmm1, %%xmm1    ;\n"
+		"movd %%xmm0, %%rdx              ;\n"
+		"movd %%xmm1, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"movq %%rcx, %%r9                ;\n"
+		"movq %%r8, %%r10                ;\n"
+		"movq %%rdx, %%r11               ;\n"
+		"movq %%rsi, %%r12               ;\n"
+		"movq %%rdi, %%r13               ;\n"
+		"shrq $26, %%r9                  ;\n"
+		"shrq $26, %%r10                 ;\n"
+		"shrq $26, %%r11                 ;\n"
+		"shrq $26, %%r12                 ;\n"
+		"shrq $26, %%r13                 ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"andl $0x1ffffff, %%r9d          ;\n"
+		"andl $0x3ffffff, %%r8d          ;\n"
+		"andl $0x1ffffff, %%r10d         ;\n"
+		"andl $0x3ffffff, %%edx          ;\n"
+		"andl $0x1ffffff, %%r11d         ;\n"
+		"andl $0x3ffffff, %%esi          ;\n"
+		"andl $0x1ffffff, %%r12d         ;\n"
+		"andl $0x3ffffff, %%edi          ;\n"
+		"andl $0x1ffffff, %%r13d         ;\n"
+		"movl %%ecx, 0(%2)               ;\n"
+		"movl %%r9d, 4(%2)               ;\n"
+		"movl %%r8d, 8(%2)               ;\n"
+		"movl %%r10d, 12(%2)             ;\n"
+		"movl %%edx, 16(%2)              ;\n"
+		"movl %%r11d, 20(%2)             ;\n"
+		"movl %%esi, 24(%2)              ;\n"
+		"movl %%r12d, 28(%2)             ;\n"
+		"movl %%edi, 32(%2)              ;\n"
+		"movl %%r13d, 36(%2)             ;\n"
+		"movq %%rax, 40(%2)              ;\n"
+
+		/* store xaddy */
+		"movd %%xmm2, %%rcx              ;\n"
+		"movd %%xmm2, %%r8               ;\n"
+		"movd %%xmm3, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm2, %%xmm2    ;\n"
+		"pshufd $0xee, %%xmm3, %%xmm3    ;\n"
+		"movd %%xmm2, %%rdx              ;\n"
+		"movd %%xmm3, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"movq %%rcx, %%r9                ;\n"
+		"movq %%r8, %%r10                ;\n"
+		"movq %%rdx, %%r11               ;\n"
+		"movq %%rsi, %%r12               ;\n"
+		"movq %%rdi, %%r13               ;\n"
+		"shrq $26, %%r9                  ;\n"
+		"shrq $26, %%r10                 ;\n"
+		"shrq $26, %%r11                 ;\n"
+		"shrq $26, %%r12                 ;\n"
+		"shrq $26, %%r13                 ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"andl $0x1ffffff, %%r9d          ;\n"
+		"andl $0x3ffffff, %%r8d          ;\n"
+		"andl $0x1ffffff, %%r10d         ;\n"
+		"andl $0x3ffffff, %%edx          ;\n"
+		"andl $0x1ffffff, %%r11d         ;\n"
+		"andl $0x3ffffff, %%esi          ;\n"
+		"andl $0x1ffffff, %%r12d         ;\n"
+		"andl $0x3ffffff, %%edi          ;\n"
+		"andl $0x1ffffff, %%r13d         ;\n"
+		"movl %%ecx, 48(%2)              ;\n"
+		"movl %%r9d, 52(%2)              ;\n"
+		"movl %%r8d, 56(%2)              ;\n"
+		"movl %%r10d, 60(%2)             ;\n"
+		"movl %%edx, 64(%2)              ;\n"
+		"movl %%r11d, 68(%2)             ;\n"
+		"movl %%esi, 72(%2)              ;\n"
+		"movl %%r12d, 76(%2)             ;\n"
+		"movl %%edi, 80(%2)              ;\n"
+		"movl %%r13d, 84(%2)             ;\n"
+		"movq %%rax, 88(%2)              ;\n"
+
+		/* extract t2d */
+		"xorq %%rax, %%rax               ;\n"
+		"movd %%xmm4, %%rcx              ;\n"
+		"movd %%xmm4, %%r8               ;\n"
+		"movd %%xmm5, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm4, %%xmm4    ;\n"
+		"pshufd $0xee, %%xmm5, %%xmm5    ;\n"
+		"movd %%xmm4, %%rdx              ;\n"
+		"movd %%xmm5, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"movq %%rcx, %%r9                ;\n"
+		"movq %%r8, %%r10                ;\n"
+		"movq %%rdx, %%r11               ;\n"
+		"movq %%rsi, %%r12               ;\n"
+		"movq %%rdi, %%r13               ;\n"
+		"shrq $26, %%r9                  ;\n"
+		"shrq $26, %%r10                 ;\n"
+		"shrq $26, %%r11                 ;\n"
+		"shrq $26, %%r12                 ;\n"
+		"shrq $26, %%r13                 ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"andl $0x1ffffff, %%r9d          ;\n"
+		"andl $0x3ffffff, %%r8d          ;\n"
+		"andl $0x1ffffff, %%r10d         ;\n"
+		"andl $0x3ffffff, %%edx          ;\n"
+		"andl $0x1ffffff, %%r11d         ;\n"
+		"andl $0x3ffffff, %%esi          ;\n"
+		"andl $0x1ffffff, %%r12d         ;\n"
+		"andl $0x3ffffff, %%edi          ;\n"
+		"andl $0x1ffffff, %%r13d         ;\n"
+		"movd %%ecx, %%xmm0              ;\n"
+		"movd %%r9d, %%xmm4              ;\n"
+		"movd %%r8d, %%xmm8              ;\n"
+		"movd %%r10d, %%xmm3             ;\n"
+		"movd %%edx, %%xmm1              ;\n"
+		"movd %%r11d, %%xmm5             ;\n"
+		"movd %%esi, %%xmm6              ;\n"
+		"movd %%r12d, %%xmm7             ;\n"
+		"movd %%edi, %%xmm2              ;\n"
+		"movd %%r13d, %%xmm9             ;\n"
+		"punpckldq %%xmm4, %%xmm0        ;\n"
+		"punpckldq %%xmm3, %%xmm8        ;\n"
+		"punpckldq %%xmm5, %%xmm1        ;\n"
+		"punpckldq %%xmm7, %%xmm6        ;\n"
+		"punpckldq %%xmm9, %%xmm2        ;\n"
+		"punpcklqdq %%xmm8, %%xmm0       ;\n"
+		"punpcklqdq %%xmm6, %%xmm1       ;\n"
+
+		/* set up 2p in to 3/4 */
+		"movl $0x7ffffda, %%ecx          ;\n"
+		"movl $0x3fffffe, %%edx          ;\n"
+		"movl $0x7fffffe, %%eax          ;\n"
+		"movd %%ecx, %%xmm3              ;\n"
+		"movd %%edx, %%xmm5              ;\n"
+		"movd %%eax, %%xmm4              ;\n"
+		"punpckldq %%xmm5, %%xmm3        ;\n"
+		"punpckldq %%xmm5, %%xmm4        ;\n"
+		"punpcklqdq %%xmm4, %%xmm3       ;\n"
+		"movdqa %%xmm4, %%xmm5           ;\n"
+		"punpcklqdq %%xmm4, %%xmm4       ;\n"
+
+		/* subtract and conditionally move */
+		"movl %3, %%ecx                  ;\n"
+		"sub $1, %%ecx                   ;\n"
+		"movd %%ecx, %%xmm6              ;\n"
+		"pshufd $0x00, %%xmm6, %%xmm6    ;\n"
+		"movdqa %%xmm6, %%xmm7           ;\n"
+		"psubd %%xmm0, %%xmm3            ;\n"
+		"psubd %%xmm1, %%xmm4            ;\n"
+		"psubd %%xmm2, %%xmm5            ;\n"
+		"pand %%xmm6, %%xmm0             ;\n"
+		"pand %%xmm6, %%xmm1             ;\n"
+		"pand %%xmm6, %%xmm2             ;\n"
+		"pandn %%xmm3, %%xmm6            ;\n"
+		"movdqa %%xmm7, %%xmm3           ;\n"
+		"pandn %%xmm4, %%xmm7            ;\n"
+		"pandn %%xmm5, %%xmm3            ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm3, %%xmm2              ;\n"
+
+		/* store t2d */
+		"movdqa %%xmm0, 96(%2)           ;\n"
+		"movdqa %%xmm1, 112(%2)          ;\n"
+		"movdqa %%xmm2, 128(%2)          ;\n"
+		:
+		: "m"(u), "r"(&table[pos * 8]), "r"(t), "m"(sign) /* %0 = u, %1 = table, %2 = t, %3 = sign */
+		:
+			"%rax", "%rcx", "%rdx", "%rdi", "%rsi", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", 
+			"%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm14", "%xmm14",
+			"cc", "memory"
+	);
+}
+
+#endif /* defined(ED25519_GCC_64BIT_SSE_CHOOSE) */
+

external/ed25519-donna/ed25519-donna-64bit-tables.h

@@ -0,0 +1,53 @@
+static const ge25519 ge25519_basepoint = {
+	{0x00062d608f25d51a,0x000412a4b4f6592a,0x00075b7171a4b31d,0x0001ff60527118fe,0x000216936d3cd6e5},
+	{0x0006666666666658,0x0004cccccccccccc,0x0001999999999999,0x0003333333333333,0x0006666666666666},
+	{0x0000000000000001,0x0000000000000000,0x0000000000000000,0x0000000000000000,0x0000000000000000},
+	{0x00068ab3a5b7dda3,0x00000eea2a5eadbb,0x0002af8df483c27e,0x000332b375274732,0x00067875f0fd78b7}
+};
+
+static const bignum25519 ge25519_ecd = {
+	0x00034dca135978a3,0x0001a8283b156ebd,0x0005e7a26001c029,0x000739c663a03cbb,0x00052036cee2b6ff
+};
+
+static const bignum25519 ge25519_ec2d = {
+	0x00069b9426b2f159,0x00035050762add7a,0x0003cf44c0038052,0x0006738cc7407977,0x0002406d9dc56dff
+};
+
+static const bignum25519 ge25519_sqrtneg1 = {
+	0x00061b274a0ea0b0,0x0000d5a5fc8f189d,0x0007ef5e9cbd0c60,0x00078595a6804c9e,0x0002b8324804fc1d
+};
+
+static const ge25519_niels ge25519_niels_sliding_multiples[32] = {
+	{{0x00003905d740913e,0x0000ba2817d673a2,0x00023e2827f4e67c,0x000133d2e0c21a34,0x00044fd2f9298f81},{0x000493c6f58c3b85,0x0000df7181c325f7,0x0000f50b0b3e4cb7,0x0005329385a44c32,0x00007cf9d3a33d4b},{0x00011205877aaa68,0x000479955893d579,0x00050d66309b67a0,0x0002d42d0dbee5ee,0x0006f117b689f0c6}},
+	{{0x00011fe8a4fcd265,0x0007bcb8374faacc,0x00052f5af4ef4d4f,0x0005314098f98d10,0x0002ab91587555bd},{0x0005b0a84cee9730,0x00061d10c97155e4,0x0004059cc8096a10,0x00047a608da8014f,0x0007a164e1b9a80f},{0x0006933f0dd0d889,0x00044386bb4c4295,0x0003cb6d3162508c,0x00026368b872a2c6,0x0005a2826af12b9b}},
+	{{0x000182c3a447d6ba,0x00022964e536eff2,0x000192821f540053,0x0002f9f19e788e5c,0x000154a7e73eb1b5},{0x0002bc4408a5bb33,0x000078ebdda05442,0x0002ffb112354123,0x000375ee8df5862d,0x0002945ccf146e20},{0x0003dbf1812a8285,0x0000fa17ba3f9797,0x0006f69cb49c3820,0x00034d5a0db3858d,0x00043aabe696b3bb}},
+	{{0x00072c9aaa3221b1,0x000267774474f74d,0x000064b0e9b28085,0x0003f04ef53b27c9,0x0001d6edd5d2e531},{0x00025cd0944ea3bf,0x00075673b81a4d63,0x000150b925d1c0d4,0x00013f38d9294114,0x000461bea69283c9},{0x00036dc801b8b3a2,0x0000e0a7d4935e30,0x0001deb7cecc0d7d,0x000053a94e20dd2c,0x0007a9fbb1c6a0f9}},
+	{{0x0006217e039d8064,0x0006dea408337e6d,0x00057ac112628206,0x000647cb65e30473,0x00049c05a51fadc9},{0x0006678aa6a8632f,0x0005ea3788d8b365,0x00021bd6d6994279,0x0007ace75919e4e3,0x00034b9ed338add7},{0x0004e8bf9045af1b,0x000514e33a45e0d6,0x0007533c5b8bfe0f,0x000583557b7e14c9,0x00073c172021b008}},
+	{{0x00075b0249864348,0x00052ee11070262b,0x000237ae54fb5acd,0x0003bfd1d03aaab5,0x00018ab598029d5c},{0x000700848a802ade,0x0001e04605c4e5f7,0x0005c0d01b9767fb,0x0007d7889f42388b,0x0004275aae2546d8},{0x00032cc5fd6089e9,0x000426505c949b05,0x00046a18880c7ad2,0x0004a4221888ccda,0x0003dc65522b53df}},
+	{{0x0007013b327fbf93,0x0001336eeded6a0d,0x0002b565a2bbf3af,0x000253ce89591955,0x0000267882d17602},{0x0000c222a2007f6d,0x000356b79bdb77ee,0x00041ee81efe12ce,0x000120a9bd07097d,0x000234fd7eec346f},{0x0000a119732ea378,0x00063bf1ba8e2a6c,0x00069f94cc90df9a,0x000431d1779bfc48,0x000497ba6fdaa097}},
+	{{0x0003cd86468ccf0b,0x00048553221ac081,0x0006c9464b4e0a6e,0x00075fba84180403,0x00043b5cd4218d05},{0x0006cc0313cfeaa0,0x0001a313848da499,0x0007cb534219230a,0x00039596dedefd60,0x00061e22917f12de},{0x0002762f9bd0b516,0x0001c6e7fbddcbb3,0x00075909c3ace2bd,0x00042101972d3ec9,0x000511d61210ae4d}},
+	{{0x000386484420de87,0x0002d6b25db68102,0x000650b4962873c0,0x0004081cfd271394,0x00071a7fe6fe2482},{0x000676ef950e9d81,0x0001b81ae089f258,0x00063c4922951883,0x0002f1d54d9b3237,0x0006d325924ddb85},{0x000182b8a5c8c854,0x00073fcbe5406d8e,0x0005de3430cff451,0x000554b967ac8c41,0x0004746c4b6559ee}},
+	{{0x000546c864741147,0x0003a1df99092690,0x0001ca8cc9f4d6bb,0x00036b7fc9cd3b03,0x000219663497db5e},{0x00077b3c6dc69a2b,0x0004edf13ec2fa6e,0x0004e85ad77beac8,0x0007dba2b28e7bda,0x0005c9a51de34fe9},{0x0000f1cf79f10e67,0x00043ccb0a2b7ea2,0x00005089dfff776a,0x0001dd84e1d38b88,0x0004804503c60822}},
+	{{0x000021d23a36d175,0x0004fd3373c6476d,0x00020e291eeed02a,0x00062f2ecf2e7210,0x000771e098858de4},{0x00049ed02ca37fc7,0x000474c2b5957884,0x0005b8388e816683,0x0004b6c454b76be4,0x000553398a516506},{0x0002f5d278451edf,0x000730b133997342,0x0006965420eb6975,0x000308a3bfa516cf,0x0005a5ed1d68ff5a}},
+	{{0x0005e0c558527359,0x0003395b73afd75c,0x000072afa4e4b970,0x00062214329e0f6d,0x000019b60135fefd},{0x0005122afe150e83,0x0004afc966bb0232,0x0001c478833c8268,0x00017839c3fc148f,0x00044acb897d8bf9},{0x000068145e134b83,0x0001e4860982c3cc,0x000068fb5f13d799,0x0007c9283744547e,0x000150c49fde6ad2}},
+	{{0x0001863c9cdca868,0x0003770e295a1709,0x0000d85a3720fd13,0x0005e0ff1f71ab06,0x00078a6d7791e05f},{0x0003f29509471138,0x000729eeb4ca31cf,0x00069c22b575bfbc,0x0004910857bce212,0x0006b2b5a075bb99},{0x0007704b47a0b976,0x0002ae82e91aab17,0x00050bd6429806cd,0x00068055158fd8ea,0x000725c7ffc4ad55}},
+	{{0x00002bf71cd098c0,0x00049dabcc6cd230,0x00040a6533f905b2,0x000573efac2eb8a4,0x0004cd54625f855f},{0x00026715d1cf99b2,0x0002205441a69c88,0x000448427dcd4b54,0x0001d191e88abdc5,0x000794cc9277cb1f},{0x0006c426c2ac5053,0x0005a65ece4b095e,0x0000c44086f26bb6,0x0007429568197885,0x0007008357b6fcc8}},
+	{{0x00039fbb82584a34,0x00047a568f257a03,0x00014d88091ead91,0x0002145b18b1ce24,0x00013a92a3669d6d},{0x0000672738773f01,0x000752bf799f6171,0x0006b4a6dae33323,0x0007b54696ead1dc,0x00006ef7e9851ad0},{0x0003771cc0577de5,0x0003ca06bb8b9952,0x00000b81c5d50390,0x00043512340780ec,0x0003c296ddf8a2af}},
+	{{0x00034d2ebb1f2541,0x0000e815b723ff9d,0x000286b416e25443,0x0000bdfe38d1bee8,0x0000a892c7007477},{0x000515f9d914a713,0x00073191ff2255d5,0x00054f5cc2a4bdef,0x0003dd57fc118bcf,0x0007a99d393490c7},{0x0002ed2436bda3e8,0x00002afd00f291ea,0x0000be7381dea321,0x0003e952d4b2b193,0x000286762d28302f}},
+	{{0x00058e2bce2ef5bd,0x00068ce8f78c6f8a,0x0006ee26e39261b2,0x00033d0aa50bcf9d,0x0007686f2a3d6f17},{0x000036093ce35b25,0x0003b64d7552e9cf,0x00071ee0fe0b8460,0x00069d0660c969e5,0x00032f1da046a9d9},{0x000512a66d597c6a,0x0000609a70a57551,0x000026c08a3c464c,0x0004531fc8ee39e1,0x000561305f8a9ad2}},
+	{{0x0002cc28e7b0c0d5,0x00077b60eb8a6ce4,0x0004042985c277a6,0x000636657b46d3eb,0x000030a1aef2c57c},{0x0004978dec92aed1,0x000069adae7ca201,0x00011ee923290f55,0x00069641898d916c,0x00000aaec53e35d4},{0x0001f773003ad2aa,0x000005642cc10f76,0x00003b48f82cfca6,0x0002403c10ee4329,0x00020be9c1c24065}},
+	{{0x0000e44ae2025e60,0x0005f97b9727041c,0x0005683472c0ecec,0x000188882eb1ce7c,0x00069764c545067e},{0x000387d8249673a6,0x0005bea8dc927c2a,0x0005bd8ed5650ef0,0x0000ef0e3fcd40e1,0x000750ab3361f0ac},{0x00023283a2f81037,0x000477aff97e23d1,0x0000b8958dbcbb68,0x0000205b97e8add6,0x00054f96b3fb7075}},
+	{{0x0005afc616b11ecd,0x00039f4aec8f22ef,0x0003b39e1625d92e,0x0005f85bd4508873,0x00078e6839fbe85d},{0x0005f20429669279,0x00008fafae4941f5,0x00015d83c4eb7688,0x0001cf379eca4146,0x0003d7fe9c52bb75},{0x00032df737b8856b,0x0000608342f14e06,0x0003967889d74175,0x0001211907fba550,0x00070f268f350088}},
+	{{0x0004112070dcf355,0x0007dcff9c22e464,0x00054ada60e03325,0x00025cd98eef769a,0x000404e56c039b8c},{0x00064583b1805f47,0x00022c1baf832cd0,0x000132c01bd4d717,0x0004ecf4c3a75b8f,0x0007c0d345cfad88},{0x00071f4b8c78338a,0x00062cfc16bc2b23,0x00017cf51280d9aa,0x0003bbae5e20a95a,0x00020d754762aaec}},
+	{{0x0004feb135b9f543,0x00063bd192ad93ae,0x00044e2ea612cdf7,0x000670f4991583ab,0x00038b8ada8790b4},{0x0007c36fc73bb758,0x0004a6c797734bd1,0x0000ef248ab3950e,0x00063154c9a53ec8,0x0002b8f1e46f3cee},{0x00004a9cdf51f95d,0x0005d963fbd596b8,0x00022d9b68ace54a,0x0004a98e8836c599,0x000049aeb32ceba1}},
+	{{0x00067d3c63dcfe7e,0x000112f0adc81aee,0x00053df04c827165,0x0002fe5b33b430f0,0x00051c665e0c8d62},{0x00007d0b75fc7931,0x00016f4ce4ba754a,0x0005ace4c03fbe49,0x00027e0ec12a159c,0x000795ee17530f67},{0x00025b0a52ecbd81,0x0005dc0695fce4a9,0x0003b928c575047d,0x00023bf3512686e5,0x0006cd19bf49dc54}},
+	{{0x0007619052179ca3,0x0000c16593f0afd0,0x000265c4795c7428,0x00031c40515d5442,0x0007520f3db40b2e},{0x0006612165afc386,0x0001171aa36203ff,0x0002642ea820a8aa,0x0001f3bb7b313f10,0x0005e01b3a7429e4},{0x00050be3d39357a1,0x0003ab33d294a7b6,0x0004c479ba59edb3,0x0004c30d184d326f,0x00071092c9ccef3c}},
+	{{0x0000523f0364918c,0x000687f56d638a7b,0x00020796928ad013,0x0005d38405a54f33,0x0000ea15b03d0257},{0x0003d8ac74051dcf,0x00010ab6f543d0ad,0x0005d0f3ac0fda90,0x0005ef1d2573e5e4,0x0004173a5bb7137a},{0x00056e31f0f9218a,0x0005635f88e102f8,0x0002cbc5d969a5b8,0x000533fbc98b347a,0x0005fc565614a4e3}},
+	{{0x0006570dc46d7ae5,0x00018a9f1b91e26d,0x000436b6183f42ab,0x000550acaa4f8198,0x00062711c414c454},{0x0002e1e67790988e,0x0001e38b9ae44912,0x000648fbb4075654,0x00028df1d840cd72,0x0003214c7409d466},{0x0001827406651770,0x0004d144f286c265,0x00017488f0ee9281,0x00019e6cdb5c760c,0x0005bea94073ecb8}},
+	{{0x0005bf0912c89be4,0x00062fadcaf38c83,0x00025ec196b3ce2c,0x00077655ff4f017b,0x0003aacd5c148f61},{0x0000ce63f343d2f8,0x0001e0a87d1e368e,0x000045edbc019eea,0x0006979aed28d0d1,0x0004ad0785944f1b},{0x00063b34c3318301,0x0000e0e62d04d0b1,0x000676a233726701,0x00029e9a042d9769,0x0003aff0cb1d9028}},
+	{{0x0005c7eb3a20405e,0x0005fdb5aad930f8,0x0004a757e63b8c47,0x00028e9492972456,0x000110e7e86f4cd2},{0x0006430bf4c53505,0x000264c3e4507244,0x00074c9f19a39270,0x00073f84f799bc47,0x0002ccf9f732bd99},{0x0000d89ed603f5e4,0x00051e1604018af8,0x0000b8eedc4a2218,0x00051ba98b9384d0,0x00005c557e0b9693}},
+	{{0x0001ce311fc97e6f,0x0006023f3fb5db1f,0x0007b49775e8fc98,0x0003ad70adbf5045,0x0006e154c178fe98},{0x0006bbb089c20eb0,0x0006df41fb0b9eee,0x00051087ed87e16f,0x000102db5c9fa731,0x000289fef0841861},{0x00016336fed69abf,0x0004f066b929f9ec,0x0004e9ff9e6c5b93,0x00018c89bc4bb2ba,0x0006afbf642a95ca}},
+	{{0x0000de0c62f5d2c1,0x00049601cf734fb5,0x0006b5c38263f0f6,0x0004623ef5b56d06,0x0000db4b851b9503},{0x00055070f913a8cc,0x000765619eac2bbc,0x0003ab5225f47459,0x00076ced14ab5b48,0x00012c093cedb801},{0x00047f9308b8190f,0x000414235c621f82,0x00031f5ff41a5a76,0x0006736773aab96d,0x00033aa8799c6635}},
+	{{0x0007f51ebd085cf2,0x00012cfa67e3f5e1,0x0001800cf1e3d46a,0x00054337615ff0a8,0x000233c6f29e8e21},{0x0000f588fc156cb1,0x000363414da4f069,0x0007296ad9b68aea,0x0004d3711316ae43,0x000212cd0c1c8d58},{0x0004d5107f18c781,0x00064a4fd3a51a5e,0x0004f4cd0448bb37,0x000671d38543151e,0x0001db7778911914}},
+	{{0x000352397c6bc26f,0x00018a7aa0227bbe,0x0005e68cc1ea5f8b,0x0006fe3e3a7a1d5f,0x00031ad97ad26e2a},{0x00014769dd701ab6,0x00028339f1b4b667,0x0004ab214b8ae37b,0x00025f0aefa0b0fe,0x0007ae2ca8a017d2},{0x000017ed0920b962,0x000187e33b53b6fd,0x00055829907a1463,0x000641f248e0a792,0x0001ed1fc53a6622}}
+};

external/ed25519-donna/ed25519-donna-64bit-x86-32bit.h

@@ -0,0 +1,435 @@
+#if defined(ED25519_GCC_64BIT_32BIT_CHOOSE)
+
+#define HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS
+
+DONNA_NOINLINE static void
+ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
+	int64_t breg = (int64_t)b;
+	uint64_t sign = (uint64_t)breg >> 63;
+	uint64_t mask = ~(sign - 1);
+	uint64_t u = (breg + mask) ^ mask;
+
+	__asm__ __volatile__ (
+		/* ysubx+xaddy+t2d */
+		"movq %0, %%rax                  ;\n"
+		"movd %%rax, %%xmm14             ;\n"
+		"pshufd $0x00, %%xmm14, %%xmm14  ;\n"
+		"pxor %%xmm0, %%xmm0             ;\n"
+		"pxor %%xmm1, %%xmm1             ;\n"
+		"pxor %%xmm2, %%xmm2             ;\n"
+		"pxor %%xmm3, %%xmm3             ;\n"
+		"pxor %%xmm4, %%xmm4             ;\n"
+		"pxor %%xmm5, %%xmm5             ;\n"
+
+		/* 0 */
+		"movq $0, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm6              ;\n"
+		"pxor %%xmm7, %%xmm7             ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm6, %%xmm2              ;\n"
+		"por %%xmm7, %%xmm3              ;\n"
+
+		/* 1 */
+		"movq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 0(%1), %%xmm6            ;\n"
+		"movdqa 16(%1), %%xmm7           ;\n"
+		"movdqa 32(%1), %%xmm8           ;\n"
+		"movdqa 48(%1), %%xmm9           ;\n"
+		"movdqa 64(%1), %%xmm10          ;\n"
+		"movdqa 80(%1), %%xmm11          ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 2 */
+		"movq $2, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 96(%1), %%xmm6           ;\n"
+		"movdqa 112(%1), %%xmm7          ;\n"
+		"movdqa 128(%1), %%xmm8          ;\n"
+		"movdqa 144(%1), %%xmm9          ;\n"
+		"movdqa 160(%1), %%xmm10         ;\n"
+		"movdqa 176(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 3 */
+		"movq $3, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 192(%1), %%xmm6          ;\n"
+		"movdqa 208(%1), %%xmm7          ;\n"
+		"movdqa 224(%1), %%xmm8          ;\n"
+		"movdqa 240(%1), %%xmm9          ;\n"
+		"movdqa 256(%1), %%xmm10         ;\n"
+		"movdqa 272(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 4 */
+		"movq $4, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 288(%1), %%xmm6          ;\n"
+		"movdqa 304(%1), %%xmm7          ;\n"
+		"movdqa 320(%1), %%xmm8          ;\n"
+		"movdqa 336(%1), %%xmm9          ;\n"
+		"movdqa 352(%1), %%xmm10         ;\n"
+		"movdqa 368(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 5 */
+		"movq $5, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 384(%1), %%xmm6          ;\n"
+		"movdqa 400(%1), %%xmm7          ;\n"
+		"movdqa 416(%1), %%xmm8          ;\n"
+		"movdqa 432(%1), %%xmm9          ;\n"
+		"movdqa 448(%1), %%xmm10         ;\n"
+		"movdqa 464(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 6 */
+		"movq $6, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 480(%1), %%xmm6          ;\n"
+		"movdqa 496(%1), %%xmm7          ;\n"
+		"movdqa 512(%1), %%xmm8          ;\n"
+		"movdqa 528(%1), %%xmm9          ;\n"
+		"movdqa 544(%1), %%xmm10         ;\n"
+		"movdqa 560(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 7 */
+		"movq $7, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 576(%1), %%xmm6          ;\n"
+		"movdqa 592(%1), %%xmm7          ;\n"
+		"movdqa 608(%1), %%xmm8          ;\n"
+		"movdqa 624(%1), %%xmm9          ;\n"
+		"movdqa 640(%1), %%xmm10         ;\n"
+		"movdqa 656(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 8 */
+		"movq $8, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 672(%1), %%xmm6          ;\n"
+		"movdqa 688(%1), %%xmm7          ;\n"
+		"movdqa 704(%1), %%xmm8          ;\n"
+		"movdqa 720(%1), %%xmm9          ;\n"
+		"movdqa 736(%1), %%xmm10         ;\n"
+		"movdqa 752(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* conditionally swap ysubx and xaddy */
+		"movq %3, %%rax                  ;\n"
+		"xorq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm14             ;\n"
+		"pxor %%xmm15, %%xmm15           ;\n"
+		"pshufd $0x00, %%xmm14, %%xmm14  ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa %%xmm2, %%xmm6           ;\n"
+		"movdqa %%xmm3, %%xmm7           ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pxor %%xmm6, %%xmm0             ;\n"
+		"pxor %%xmm7, %%xmm1             ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+
+		/* store ysubx */
+		"xorq %%rax, %%rax               ;\n"
+		"movd %%xmm0, %%rcx              ;\n"
+		"movd %%xmm0, %%r8               ;\n"
+		"movd %%xmm1, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm0, %%xmm0    ;\n"
+		"pshufd $0xee, %%xmm1, %%xmm1    ;\n"
+		"movd %%xmm0, %%rdx              ;\n"
+		"movd %%xmm1, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"movq %%rcx, %%r9                ;\n"
+		"movq %%r8, %%r10                ;\n"
+		"movq %%rdx, %%r11               ;\n"
+		"movq %%rsi, %%r12               ;\n"
+		"movq %%rdi, %%r13               ;\n"
+		"shrq $26, %%r9                  ;\n"
+		"shrq $26, %%r10                 ;\n"
+		"shrq $26, %%r11                 ;\n"
+		"shrq $26, %%r12                 ;\n"
+		"shrq $26, %%r13                 ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"andl $0x1ffffff, %%r9d          ;\n"
+		"andl $0x3ffffff, %%r8d          ;\n"
+		"andl $0x1ffffff, %%r10d         ;\n"
+		"andl $0x3ffffff, %%edx          ;\n"
+		"andl $0x1ffffff, %%r11d         ;\n"
+		"andl $0x3ffffff, %%esi          ;\n"
+		"andl $0x1ffffff, %%r12d         ;\n"
+		"andl $0x3ffffff, %%edi          ;\n"
+		"andl $0x1ffffff, %%r13d         ;\n"
+		"movl %%ecx, 0(%2)               ;\n"
+		"movl %%r9d, 4(%2)               ;\n"
+		"movl %%r8d, 8(%2)               ;\n"
+		"movl %%r10d, 12(%2)             ;\n"
+		"movl %%edx, 16(%2)              ;\n"
+		"movl %%r11d, 20(%2)             ;\n"
+		"movl %%esi, 24(%2)              ;\n"
+		"movl %%r12d, 28(%2)             ;\n"
+		"movl %%edi, 32(%2)              ;\n"
+		"movl %%r13d, 36(%2)             ;\n"
+
+		/* store xaddy */
+		"movd %%xmm2, %%rcx              ;\n"
+		"movd %%xmm2, %%r8               ;\n"
+		"movd %%xmm3, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm2, %%xmm2    ;\n"
+		"pshufd $0xee, %%xmm3, %%xmm3    ;\n"
+		"movd %%xmm2, %%rdx              ;\n"
+		"movd %%xmm3, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"movq %%rcx, %%r9                ;\n"
+		"movq %%r8, %%r10                ;\n"
+		"movq %%rdx, %%r11               ;\n"
+		"movq %%rsi, %%r12               ;\n"
+		"movq %%rdi, %%r13               ;\n"
+		"shrq $26, %%r9                  ;\n"
+		"shrq $26, %%r10                 ;\n"
+		"shrq $26, %%r11                 ;\n"
+		"shrq $26, %%r12                 ;\n"
+		"shrq $26, %%r13                 ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"andl $0x1ffffff, %%r9d          ;\n"
+		"andl $0x3ffffff, %%r8d          ;\n"
+		"andl $0x1ffffff, %%r10d         ;\n"
+		"andl $0x3ffffff, %%edx          ;\n"
+		"andl $0x1ffffff, %%r11d         ;\n"
+		"andl $0x3ffffff, %%esi          ;\n"
+		"andl $0x1ffffff, %%r12d         ;\n"
+		"andl $0x3ffffff, %%edi          ;\n"
+		"andl $0x1ffffff, %%r13d         ;\n"
+		"movl %%ecx, 40(%2)              ;\n"
+		"movl %%r9d, 44(%2)              ;\n"
+		"movl %%r8d, 48(%2)              ;\n"
+		"movl %%r10d, 52(%2)             ;\n"
+		"movl %%edx, 56(%2)              ;\n"
+		"movl %%r11d, 60(%2)             ;\n"
+		"movl %%esi, 64(%2)              ;\n"
+		"movl %%r12d, 68(%2)             ;\n"
+		"movl %%edi, 72(%2)              ;\n"
+		"movl %%r13d, 76(%2)             ;\n"
+
+		/* extract t2d */
+		"xorq %%rax, %%rax               ;\n"
+		"movd %%xmm4, %%rcx              ;\n"
+		"movd %%xmm4, %%r8               ;\n"
+		"movd %%xmm5, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm4, %%xmm4    ;\n"
+		"pshufd $0xee, %%xmm5, %%xmm5    ;\n"
+		"movd %%xmm4, %%rdx              ;\n"
+		"movd %%xmm5, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"movq %%rcx, %%r9                ;\n"
+		"movq %%r8, %%r10                ;\n"
+		"movq %%rdx, %%r11               ;\n"
+		"movq %%rsi, %%r12               ;\n"
+		"movq %%rdi, %%r13               ;\n"
+		"shrq $26, %%r9                  ;\n"
+		"shrq $26, %%r10                 ;\n"
+		"shrq $26, %%r11                 ;\n"
+		"shrq $26, %%r12                 ;\n"
+		"shrq $26, %%r13                 ;\n"
+		"andl $0x3ffffff, %%ecx          ;\n"
+		"andl $0x1ffffff, %%r9d          ;\n"
+		"andl $0x3ffffff, %%r8d          ;\n"
+		"andl $0x1ffffff, %%r10d         ;\n"
+		"andl $0x3ffffff, %%edx          ;\n"
+		"andl $0x1ffffff, %%r11d         ;\n"
+		"andl $0x3ffffff, %%esi          ;\n"
+		"andl $0x1ffffff, %%r12d         ;\n"
+		"andl $0x3ffffff, %%edi          ;\n"
+		"andl $0x1ffffff, %%r13d         ;\n"
+		"movd %%ecx, %%xmm0              ;\n"
+		"movd %%r9d, %%xmm4              ;\n"
+		"movd %%r8d, %%xmm8              ;\n"
+		"movd %%r10d, %%xmm3             ;\n"
+		"movd %%edx, %%xmm1              ;\n"
+		"movd %%r11d, %%xmm5             ;\n"
+		"movd %%esi, %%xmm6              ;\n"
+		"movd %%r12d, %%xmm7             ;\n"
+		"movd %%edi, %%xmm2              ;\n"
+		"movd %%r13d, %%xmm9             ;\n"
+		"punpckldq %%xmm4, %%xmm0        ;\n"
+		"punpckldq %%xmm3, %%xmm8        ;\n"
+		"punpckldq %%xmm5, %%xmm1        ;\n"
+		"punpckldq %%xmm7, %%xmm6        ;\n"
+		"punpckldq %%xmm9, %%xmm2        ;\n"
+		"punpcklqdq %%xmm8, %%xmm0       ;\n"
+		"punpcklqdq %%xmm6, %%xmm1       ;\n"
+
+		/* set up 2p in to 3/4 */
+		"movl $0x7ffffda, %%ecx          ;\n"
+		"movl $0x3fffffe, %%edx          ;\n"
+		"movl $0x7fffffe, %%eax          ;\n"
+		"movd %%ecx, %%xmm3              ;\n"
+		"movd %%edx, %%xmm5              ;\n"
+		"movd %%eax, %%xmm4              ;\n"
+		"punpckldq %%xmm5, %%xmm3        ;\n"
+		"punpckldq %%xmm5, %%xmm4        ;\n"
+		"punpcklqdq %%xmm4, %%xmm3       ;\n"
+		"movdqa %%xmm4, %%xmm5           ;\n"
+		"punpcklqdq %%xmm4, %%xmm4       ;\n"
+
+		/* subtract and conditionally move */
+		"movl %3, %%ecx                  ;\n"
+		"sub $1, %%ecx                   ;\n"
+		"movd %%ecx, %%xmm6              ;\n"
+		"pshufd $0x00, %%xmm6, %%xmm6    ;\n"
+		"movdqa %%xmm6, %%xmm7           ;\n"
+		"psubd %%xmm0, %%xmm3            ;\n"
+		"psubd %%xmm1, %%xmm4            ;\n"
+		"psubd %%xmm2, %%xmm5            ;\n"
+		"pand %%xmm6, %%xmm0             ;\n"
+		"pand %%xmm6, %%xmm1             ;\n"
+		"pand %%xmm6, %%xmm2             ;\n"
+		"pandn %%xmm3, %%xmm6            ;\n"
+		"movdqa %%xmm7, %%xmm3           ;\n"
+		"pandn %%xmm4, %%xmm7            ;\n"
+		"pandn %%xmm5, %%xmm3            ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm3, %%xmm2              ;\n"
+
+		/* store t2d */
+		"movdqa %%xmm0, 80(%2)           ;\n"
+		"movdqa %%xmm1, 96(%2)          ;\n"
+		"movd %%xmm2, %%rax              ;\n"
+		"movq %%rax, 112(%2)             ;\n"
+		:
+		: "m"(u), "r"(&table[pos * 8]), "r"(t), "m"(sign) /* %0 = u, %1 = table, %2 = t, %3 = sign */
+		:
+			"%rax", "%rcx", "%rdx", "%rdi", "%rsi", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", 
+			"%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm14", "%xmm14",
+			"cc", "memory"
+	);
+}
+
+#endif /* defined(ED25519_GCC_64BIT_32BIT_CHOOSE) */
+

external/ed25519-donna/ed25519-donna-64bit-x86.h

@@ -0,0 +1,357 @@
+#if defined(ED25519_GCC_64BIT_X86_CHOOSE)
+
+#define HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS
+
+#if defined(__clang__) || defined (__GNUC__)
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
+#else
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS
+#endif
+
+ATTRIBUTE_NO_SANITIZE_ADDRESS DONNA_NOINLINE static void
+ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
+	int64_t breg = (int64_t)b;
+	uint64_t sign = (uint64_t)breg >> 63;
+	uint64_t mask = ~(sign - 1);
+	uint64_t u = (breg + mask) ^ mask;
+
+	__asm__ __volatile__ (
+		/* ysubx+xaddy+t2d */
+		"movq %0, %%rax                  ;\n"
+		"movd %%rax, %%xmm14             ;\n"
+		"pshufd $0x00, %%xmm14, %%xmm14  ;\n"
+		"pxor %%xmm0, %%xmm0             ;\n"
+		"pxor %%xmm1, %%xmm1             ;\n"
+		"pxor %%xmm2, %%xmm2             ;\n"
+		"pxor %%xmm3, %%xmm3             ;\n"
+		"pxor %%xmm4, %%xmm4             ;\n"
+		"pxor %%xmm5, %%xmm5             ;\n"
+
+		/* 0 */
+		"movq $0, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm6              ;\n"
+		"pxor %%xmm7, %%xmm7             ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm6, %%xmm2              ;\n"
+		"por %%xmm7, %%xmm3              ;\n"
+
+		/* 1 */
+		"movq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 0(%1), %%xmm6            ;\n"
+		"movdqa 16(%1), %%xmm7           ;\n"
+		"movdqa 32(%1), %%xmm8           ;\n"
+		"movdqa 48(%1), %%xmm9           ;\n"
+		"movdqa 64(%1), %%xmm10          ;\n"
+		"movdqa 80(%1), %%xmm11          ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 2 */
+		"movq $2, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 96(%1), %%xmm6           ;\n"
+		"movdqa 112(%1), %%xmm7          ;\n"
+		"movdqa 128(%1), %%xmm8          ;\n"
+		"movdqa 144(%1), %%xmm9          ;\n"
+		"movdqa 160(%1), %%xmm10         ;\n"
+		"movdqa 176(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 3 */
+		"movq $3, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 192(%1), %%xmm6          ;\n"
+		"movdqa 208(%1), %%xmm7          ;\n"
+		"movdqa 224(%1), %%xmm8          ;\n"
+		"movdqa 240(%1), %%xmm9          ;\n"
+		"movdqa 256(%1), %%xmm10         ;\n"
+		"movdqa 272(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 4 */
+		"movq $4, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 288(%1), %%xmm6          ;\n"
+		"movdqa 304(%1), %%xmm7          ;\n"
+		"movdqa 320(%1), %%xmm8          ;\n"
+		"movdqa 336(%1), %%xmm9          ;\n"
+		"movdqa 352(%1), %%xmm10         ;\n"
+		"movdqa 368(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 5 */
+		"movq $5, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 384(%1), %%xmm6          ;\n"
+		"movdqa 400(%1), %%xmm7          ;\n"
+		"movdqa 416(%1), %%xmm8          ;\n"
+		"movdqa 432(%1), %%xmm9          ;\n"
+		"movdqa 448(%1), %%xmm10         ;\n"
+		"movdqa 464(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 6 */
+		"movq $6, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 480(%1), %%xmm6          ;\n"
+		"movdqa 496(%1), %%xmm7          ;\n"
+		"movdqa 512(%1), %%xmm8          ;\n"
+		"movdqa 528(%1), %%xmm9          ;\n"
+		"movdqa 544(%1), %%xmm10         ;\n"
+		"movdqa 560(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 7 */
+		"movq $7, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 576(%1), %%xmm6          ;\n"
+		"movdqa 592(%1), %%xmm7          ;\n"
+		"movdqa 608(%1), %%xmm8          ;\n"
+		"movdqa 624(%1), %%xmm9          ;\n"
+		"movdqa 640(%1), %%xmm10         ;\n"
+		"movdqa 656(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* 8 */
+		"movq $8, %%rax                  ;\n"
+		"movd %%rax, %%xmm15             ;\n"
+		"pshufd $0x00, %%xmm15, %%xmm15  ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa 672(%1), %%xmm6          ;\n"
+		"movdqa 688(%1), %%xmm7          ;\n"
+		"movdqa 704(%1), %%xmm8          ;\n"
+		"movdqa 720(%1), %%xmm9          ;\n"
+		"movdqa 736(%1), %%xmm10         ;\n"
+		"movdqa 752(%1), %%xmm11         ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pand %%xmm15, %%xmm8            ;\n"
+		"pand %%xmm15, %%xmm9            ;\n"
+		"pand %%xmm15, %%xmm10           ;\n"
+		"pand %%xmm15, %%xmm11           ;\n"
+		"por %%xmm6, %%xmm0              ;\n"
+		"por %%xmm7, %%xmm1              ;\n"
+		"por %%xmm8, %%xmm2              ;\n"
+		"por %%xmm9, %%xmm3              ;\n"
+		"por %%xmm10, %%xmm4             ;\n"
+		"por %%xmm11, %%xmm5             ;\n"
+
+		/* conditionally swap ysubx and xaddy */
+		"movq %3, %%rax                  ;\n"
+		"xorq $1, %%rax                  ;\n"
+		"movd %%rax, %%xmm14             ;\n"
+		"pxor %%xmm15, %%xmm15           ;\n"
+		"pshufd $0x00, %%xmm14, %%xmm14  ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+		"pcmpeqd %%xmm14, %%xmm15        ;\n"
+		"movdqa %%xmm2, %%xmm6           ;\n"
+		"movdqa %%xmm3, %%xmm7           ;\n"
+		"pand %%xmm15, %%xmm6            ;\n"
+		"pand %%xmm15, %%xmm7            ;\n"
+		"pxor %%xmm6, %%xmm0             ;\n"
+		"pxor %%xmm7, %%xmm1             ;\n"
+		"pxor %%xmm0, %%xmm2             ;\n"
+		"pxor %%xmm1, %%xmm3             ;\n"
+
+		/* store ysubx */
+		"movq $0x7ffffffffffff, %%rax    ;\n"
+		"movd %%xmm0, %%rcx              ;\n"
+		"movd %%xmm0, %%r8               ;\n"
+		"movd %%xmm1, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm0, %%xmm0    ;\n"
+		"pshufd $0xee, %%xmm1, %%xmm1    ;\n"
+		"movd %%xmm0, %%rdx              ;\n"
+		"movd %%xmm1, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"andq %%rax, %%rcx               ;\n"
+		"andq %%rax, %%r8                ;\n"
+		"andq %%rax, %%rdx               ;\n"
+		"andq %%rax, %%rsi               ;\n"
+		"andq %%rax, %%rdi               ;\n"
+		"movq %%rcx, 0(%2)               ;\n"
+		"movq %%r8, 8(%2)                ;\n"
+		"movq %%rdx, 16(%2)              ;\n"
+		"movq %%rsi, 24(%2)              ;\n"
+		"movq %%rdi, 32(%2)              ;\n"
+
+		/* store xaddy */
+		"movq $0x7ffffffffffff, %%rax    ;\n"
+		"movd %%xmm2, %%rcx              ;\n"
+		"movd %%xmm2, %%r8               ;\n"
+		"movd %%xmm3, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm2, %%xmm2    ;\n"
+		"pshufd $0xee, %%xmm3, %%xmm3    ;\n"
+		"movd %%xmm2, %%rdx              ;\n"
+		"movd %%xmm3, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"andq %%rax, %%rcx               ;\n"
+		"andq %%rax, %%r8                ;\n"
+		"andq %%rax, %%rdx               ;\n"
+		"andq %%rax, %%rsi               ;\n"
+		"andq %%rax, %%rdi               ;\n"
+		"movq %%rcx, 40(%2)              ;\n"
+		"movq %%r8, 48(%2)               ;\n"
+		"movq %%rdx, 56(%2)              ;\n"
+		"movq %%rsi, 64(%2)              ;\n"
+		"movq %%rdi, 72(%2)              ;\n"
+
+		/* extract t2d */
+		"movq $0x7ffffffffffff, %%rax    ;\n"
+		"movd %%xmm4, %%rcx              ;\n"
+		"movd %%xmm4, %%r8               ;\n"
+		"movd %%xmm5, %%rsi              ;\n"
+		"pshufd $0xee, %%xmm4, %%xmm4    ;\n"
+		"pshufd $0xee, %%xmm5, %%xmm5    ;\n"
+		"movd %%xmm4, %%rdx              ;\n"
+		"movd %%xmm5, %%rdi              ;\n"
+		"shrdq $51, %%rdx, %%r8          ;\n"
+		"shrdq $38, %%rsi, %%rdx         ;\n"
+		"shrdq $25, %%rdi, %%rsi         ;\n"
+		"shrq $12, %%rdi                 ;\n"
+		"andq %%rax, %%rcx               ;\n"
+		"andq %%rax, %%r8                ;\n"
+		"andq %%rax, %%rdx               ;\n"
+		"andq %%rax, %%rsi               ;\n"
+		"andq %%rax, %%rdi               ;\n"
+
+		/* conditionally negate t2d */
+		"movq %3, %%rax                  ;\n"
+		"movq $0xfffffffffffda, %%r9     ;\n"
+		"movq $0xffffffffffffe, %%r10    ;\n"
+		"movq %%r10, %%r11               ;\n"
+		"movq %%r10, %%r12               ;\n"
+		"movq %%r10, %%r13               ;\n"
+		"subq %%rcx, %%r9                ;\n"
+		"subq %%r8, %%r10                ;\n"
+		"subq %%rdx, %%r11               ;\n"
+		"subq %%rsi, %%r12               ;\n"
+		"subq %%rdi, %%r13               ;\n"
+		"cmpq $1, %%rax                  ;\n"
+		"cmove %%r9, %%rcx               ;\n"
+		"cmove %%r10, %%r8               ;\n"
+		"cmove %%r11, %%rdx              ;\n"
+		"cmove %%r12, %%rsi              ;\n"
+		"cmove %%r13, %%rdi              ;\n"
+
+		/* store t2d */
+		"movq %%rcx, 80(%2)              ;\n"
+		"movq %%r8, 88(%2)               ;\n"
+		"movq %%rdx, 96(%2)              ;\n"
+		"movq %%rsi, 104(%2)             ;\n"
+		"movq %%rdi, 112(%2)             ;\n"
+		:
+		: "m"(u), "r"(&table[pos * 8]), "r"(t), "m"(sign) /* %0 = u, %1 = table, %2 = t, %3 = sign */
+		:
+			"%rax", "%rcx", "%rdx", "%rdi", "%rsi", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", 
+			"%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm14", "%xmm14",
+			"cc", "memory"
+	);
+}
+
+#endif /* defined(ED25519_GCC_64BIT_X86_CHOOSE) */
+

external/ed25519-donna/ed25519-donna-basepoint-table.h

@@ -0,0 +1,259 @@
+/* multiples of the base point in packed {ysubx, xaddy, t2d} form */
+static const uint8_t ALIGN(16) ge25519_niels_base_multiples[256][96] = {
+	{0x3e,0x91,0x40,0xd7,0x05,0x39,0x10,0x9d,0xb3,0xbe,0x40,0xd1,0x05,0x9f,0x39,0xfd,0x09,0x8a,0x8f,0x68,0x34,0x84,0xc1,0xa5,0x67,0x12,0xf8,0x98,0x92,0x2f,0xfd,0x44,0x85,0x3b,0x8c,0xf5,0xc6,0x93,0xbc,0x2f,0x19,0x0e,0x8c,0xfb,0xc6,0x2d,0x93,0xcf,0xc2,0x42,0x3d,0x64,0x98,0x48,0x0b,0x27,0x65,0xba,0xd4,0x33,0x3a,0x9d,0xcf,0x07,0x59,0xbb,0x6f,0x4b,0x67,0x15,0xbd,0xdb,0xea,0xa5,0xa2,0xee,0x00,0x3f,0xe1,0x41,0xfa,0xc6,0x57,0xc9,0x1c,0x9d,0xd4,0xcd,0xca,0xec,0x16,0xaf,0x1f,0xbe,0x0e,0x4f},
+	{0xa8,0xd5,0xb4,0x42,0x60,0xa5,0x99,0x8a,0xf6,0xac,0x60,0x4e,0x0c,0x81,0x2b,0x8f,0xaa,0x37,0x6e,0xb1,0x6b,0x23,0x9e,0xe0,0x55,0x25,0xc9,0x69,0xa6,0x95,0xb5,0x6b,0xd7,0x71,0x3c,0x93,0xfc,0xe7,0x24,0x92,0xb5,0xf5,0x0f,0x7a,0x96,0x9d,0x46,0x9f,0x02,0x07,0xd6,0xe1,0x65,0x9a,0xa6,0x5a,0x2e,0x2e,0x7d,0xa8,0x3f,0x06,0x0c,0x59,0x02,0x68,0xd3,0xda,0xaa,0x7e,0x34,0x6e,0x05,0x48,0xee,0x83,0x93,0x59,0xf3,0xba,0x26,0x68,0x07,0xe6,0x10,0xbe,0xca,0x3b,0xb8,0xd1,0x5e,0x16,0x0a,0x4f,0x31,0x49},
+	{0x65,0xd2,0xfc,0xa4,0xe8,0x1f,0x61,0x56,0x7d,0xba,0xc1,0xe5,0xfd,0x53,0xd3,0x3b,0xbd,0xd6,0x4b,0x21,0x1a,0xf3,0x31,0x81,0x62,0xda,0x5b,0x55,0x87,0x15,0xb9,0x2a,0x30,0x97,0xee,0x4c,0xa8,0xb0,0x25,0xaf,0x8a,0x4b,0x86,0xe8,0x30,0x84,0x5a,0x02,0x32,0x67,0x01,0x9f,0x02,0x50,0x1b,0xc1,0xf4,0xf8,0x80,0x9a,0x1b,0x4e,0x16,0x7a,0x34,0x48,0x67,0xf1,0xf4,0x11,0xf2,0x9b,0x95,0xf8,0x2d,0xf6,0x17,0x6b,0x4e,0xb8,0x4e,0x2a,0x72,0x5b,0x07,0x6f,0xde,0xd7,0x21,0x2a,0xbb,0x63,0xb9,0x04,0x9a,0x54},
+	{0xbf,0x18,0x68,0x05,0x0a,0x05,0xfe,0x95,0xa9,0xfa,0x60,0x56,0x71,0x89,0x7e,0x32,0x73,0x50,0xa0,0x06,0xcd,0xe3,0xe8,0xc3,0x9a,0xa4,0x45,0x74,0x4c,0x3f,0x93,0x27,0x9f,0x09,0xfc,0x8e,0xb9,0x51,0x73,0x28,0x38,0x25,0xfd,0x7d,0xf4,0xc6,0x65,0x67,0x65,0x92,0x0a,0xfb,0x3d,0x8d,0x34,0xca,0x27,0x87,0xe5,0x21,0x03,0x91,0x0e,0x68,0xb0,0x26,0x14,0xe5,0xec,0x45,0x1e,0xbf,0x94,0x0f,0xba,0x6d,0x3d,0xc6,0x2b,0xe3,0xc0,0x52,0xf8,0x8c,0xd5,0x74,0x29,0xe4,0x18,0x4c,0xe6,0xb0,0xb1,0x79,0xf0,0x44},
+	{0xba,0xd6,0x47,0xa4,0xc3,0x82,0x91,0x7f,0xb7,0x29,0x27,0x4b,0xd1,0x14,0x00,0xd5,0x87,0xa0,0x64,0xb8,0x1c,0xf1,0x3c,0xe3,0xf3,0x55,0x1b,0xeb,0x73,0x7e,0x4a,0x15,0x33,0xbb,0xa5,0x08,0x44,0xbc,0x12,0xa2,0x02,0xed,0x5e,0xc7,0xc3,0x48,0x50,0x8d,0x44,0xec,0xbf,0x5a,0x0c,0xeb,0x1b,0xdd,0xeb,0x06,0xe2,0x46,0xf1,0xcc,0x45,0x29,0xb3,0x03,0xd0,0xe7,0x79,0xa1,0x32,0xc8,0x7e,0x4d,0x12,0x00,0x0a,0x9d,0x72,0x5f,0xf3,0x8f,0x6d,0x0e,0xa1,0xd4,0xc1,0x62,0x98,0x7a,0xb2,0x38,0x59,0xac,0xb8,0x68},
+	{0xa4,0x8c,0x7d,0x7b,0xb6,0x06,0x98,0x49,0x39,0x27,0xd2,0x27,0x84,0xe2,0x5b,0x57,0xb9,0x53,0x45,0x20,0xe7,0x5c,0x08,0xbb,0x84,0x78,0x41,0xae,0x41,0x4c,0xb6,0x38,0x31,0x71,0x15,0x77,0xeb,0xee,0x0c,0x3a,0x88,0xaf,0xc8,0x00,0x89,0x15,0x27,0x9b,0x36,0xa7,0x59,0xda,0x68,0xb6,0x65,0x80,0xbd,0x38,0xcc,0xa2,0xb6,0x7b,0xe5,0x51,0xa4,0xe3,0x9d,0x68,0x91,0xad,0x9d,0x8f,0x37,0x91,0xfb,0xf8,0x28,0x24,0x5f,0x17,0x88,0xb9,0xcf,0x9f,0x32,0xb5,0x0a,0x05,0x9f,0xc0,0x54,0x13,0xa2,0xdf,0x65,0x78},
+	{0xb1,0x21,0x32,0xaa,0x9a,0x2c,0x6f,0xba,0xa7,0x23,0xba,0x3b,0x53,0x21,0xa0,0x6c,0x3a,0x2c,0x19,0x92,0x4f,0x76,0xea,0x9d,0xe0,0x17,0x53,0x2e,0x5d,0xdd,0x6e,0x1d,0xbf,0xa3,0x4e,0x94,0xd0,0x5c,0x1a,0x6b,0xd2,0xc0,0x9d,0xb3,0x3a,0x35,0x70,0x74,0x49,0x2e,0x54,0x28,0x82,0x52,0xb2,0x71,0x7e,0x92,0x3c,0x28,0x69,0xea,0x1b,0x46,0x36,0xda,0x0f,0xab,0xac,0x8a,0x7a,0x21,0xc8,0x49,0x35,0x3d,0x54,0xc6,0x28,0xa5,0x68,0x75,0xab,0x13,0x8b,0x5b,0xd0,0x37,0x37,0xbc,0x2c,0x3a,0x62,0xef,0x3c,0x23},
+	{0xd9,0x34,0x92,0xf3,0xed,0x5d,0xa7,0xe2,0xf9,0x58,0xb5,0xe1,0x80,0x76,0x3d,0x96,0xfb,0x23,0x3c,0x6e,0xac,0x41,0x27,0x2c,0xc3,0x01,0x0e,0x32,0xa1,0x24,0x90,0x3a,0x8f,0x3e,0xdd,0x04,0x66,0x59,0xb7,0x59,0x2c,0x70,0x88,0xe2,0x77,0x03,0xb3,0x6c,0x23,0xc3,0xd9,0x5e,0x66,0x9c,0x33,0xb1,0x2f,0xe5,0xbc,0x61,0x60,0xe7,0x15,0x09,0x7e,0xa3,0x34,0xa8,0x35,0xe8,0x7d,0xdf,0xea,0x57,0x98,0x68,0xda,0x9c,0xe1,0x8b,0x26,0xb3,0x67,0x71,0x36,0x85,0x11,0x2c,0xc2,0xd5,0xef,0xdb,0xd9,0xb3,0x9e,0x58},
+	{0x5e,0x51,0xaa,0x49,0x54,0x63,0x5b,0xed,0x3a,0x82,0xc6,0x0b,0x9f,0xc4,0x65,0xa8,0xc4,0xd1,0x42,0x5b,0xe9,0x1f,0x0c,0x85,0xb9,0x15,0xd3,0x03,0x6f,0x6d,0xd7,0x30,0x1d,0x9c,0x2f,0x63,0x0e,0xdd,0xcc,0x2e,0x15,0x31,0x89,0x76,0x96,0xb6,0xd0,0x51,0x58,0x7a,0x63,0xa8,0x6b,0xb7,0xdf,0x52,0x39,0xef,0x0e,0xa0,0x49,0x7d,0xd3,0x6d,0xc7,0xe4,0x06,0x21,0x17,0x44,0x44,0x6c,0x69,0x7f,0x8d,0x92,0x80,0xd6,0x53,0xfb,0x26,0x3f,0x4d,0x69,0xa4,0x9e,0x73,0xb4,0xb0,0x4b,0x86,0x2e,0x11,0x97,0xc6,0x10},
+	{0xde,0x5f,0xbe,0x7d,0x27,0xc4,0x93,0x64,0xa2,0x7e,0xad,0x19,0xad,0x4f,0x5d,0x26,0x90,0x45,0x30,0x46,0xc8,0xdf,0x00,0x0e,0x09,0xfe,0x66,0xed,0xab,0x1c,0xe6,0x25,0x05,0xc8,0x58,0x83,0xa0,0x2a,0xa6,0x0c,0x47,0x42,0x20,0x7a,0xe3,0x4a,0x3d,0x6a,0xdc,0xed,0x11,0x3b,0xa6,0xd3,0x64,0x74,0xef,0x06,0x08,0x55,0xaf,0x9b,0xbf,0x03,0x04,0x66,0x58,0xcc,0x28,0xe1,0x13,0x3f,0x7e,0x74,0x59,0xb4,0xec,0x73,0x58,0x6f,0xf5,0x68,0x12,0xcc,0xed,0x3d,0xb6,0xa0,0x2c,0xe2,0x86,0x45,0x63,0x78,0x6d,0x56},
+	{0x34,0x08,0xc1,0x9c,0x9f,0xa4,0x37,0x16,0x51,0xc4,0x9b,0xa8,0xd5,0x56,0x8e,0xbc,0xdb,0xd2,0x7f,0x7f,0x0f,0xec,0xb5,0x1c,0xd9,0x35,0xcc,0x5e,0xca,0x5b,0x97,0x33,0xd0,0x2f,0x5a,0xc6,0x85,0x42,0x05,0xa1,0xc3,0x67,0x16,0xf3,0x2a,0x11,0x64,0x6c,0x58,0xee,0x1a,0x73,0x40,0xe2,0x0a,0x68,0x2a,0xb2,0x93,0x47,0xf3,0xa5,0xfb,0x14,0xd4,0xf7,0x85,0x69,0x16,0x46,0xd7,0x3c,0x57,0x00,0xc8,0xc9,0x84,0x5e,0x3e,0x59,0x1e,0x13,0x61,0x7b,0xb6,0xf2,0xc3,0x2f,0x6c,0x52,0xfc,0x83,0xea,0x9c,0x82,0x14},
+	{0xc2,0x95,0xdd,0x97,0x84,0x7b,0x43,0xff,0xa7,0xb5,0x4e,0xaa,0x30,0x4e,0x74,0x6c,0x8b,0xe8,0x85,0x3c,0x61,0x5d,0x0c,0x9e,0x73,0x81,0x75,0x5f,0x1e,0xc7,0xd9,0x2f,0xb8,0xec,0x71,0x4e,0x2f,0x0b,0xe7,0x21,0xe3,0x77,0xa4,0x40,0xb9,0xdd,0x56,0xe6,0x80,0x4f,0x1d,0xce,0xce,0x56,0x65,0xbf,0x7e,0x7b,0x5d,0x53,0xc4,0x3b,0xfc,0x05,0xdd,0xde,0xaf,0x52,0xae,0xb3,0xb8,0x24,0xcf,0x30,0x3b,0xed,0x8c,0x63,0x95,0x34,0x95,0x81,0xbe,0xa9,0x83,0xbc,0xa4,0x33,0x04,0x1f,0x65,0x5c,0x47,0x67,0x37,0x37},
+	{0xd9,0xad,0xd1,0x40,0xfd,0x99,0xba,0x2f,0x27,0xd0,0xf4,0x96,0x6f,0x16,0x07,0xb3,0xae,0x3b,0xf0,0x15,0x52,0xf0,0x63,0x43,0x99,0xf9,0x18,0x3b,0x6c,0xa5,0xbe,0x1f,0x90,0x65,0x24,0x14,0xcb,0x95,0x40,0x63,0x35,0x55,0xc1,0x16,0x40,0x14,0x12,0xef,0x60,0xbc,0x10,0x89,0x0c,0x14,0x38,0x9e,0x8c,0x7c,0x90,0x30,0x57,0x90,0xf5,0x6b,0x8a,0x5b,0x41,0xe1,0xf1,0x78,0xa7,0x0f,0x7e,0xa7,0xc3,0xba,0xf7,0x9f,0x40,0x06,0x50,0x9a,0xa2,0x9a,0xb8,0xd7,0x52,0x6f,0x56,0x5a,0x63,0x7a,0xf6,0x1c,0x52,0x02},
+	{0x94,0x52,0x9d,0x0a,0x0b,0xee,0x3f,0x51,0x66,0x5a,0xdf,0x0f,0x5c,0xe7,0x98,0x8f,0xce,0x07,0xe1,0xbf,0x88,0x86,0x61,0xd4,0xed,0x2c,0x38,0x71,0x7e,0x0a,0xa0,0x3f,0xe4,0x5e,0x2f,0x77,0x20,0x67,0x14,0xb1,0xce,0x9a,0x07,0x96,0xb1,0x94,0xf8,0xe8,0x4a,0x82,0xac,0x00,0x4d,0x22,0xf8,0x4a,0xc4,0x6c,0xcd,0xf7,0xd9,0x53,0x17,0x00,0x34,0xdb,0x3d,0x96,0x2d,0x23,0x69,0x3c,0x58,0x38,0x97,0xb4,0xda,0x87,0xde,0x1d,0x85,0xf2,0x91,0xa0,0xf9,0xd1,0xd7,0xaa,0xb6,0xed,0x48,0xa0,0x2f,0xfe,0xb5,0x12},
+	{0x4d,0xe3,0xfc,0x96,0xc4,0xfb,0xf0,0x71,0xed,0x5b,0xf3,0xad,0x6b,0x82,0xb9,0x73,0x61,0xc5,0x28,0xff,0x61,0x72,0x04,0xd2,0x6f,0x20,0xb1,0x6f,0xf9,0x76,0x9b,0x74,0x92,0x1e,0x6f,0xad,0x26,0x7c,0x2b,0xdf,0x13,0x89,0x4b,0x50,0x23,0xd3,0x66,0x4b,0xc3,0x8b,0x1c,0x75,0xc0,0x9d,0x40,0x8c,0xb8,0xc7,0x96,0x07,0xc2,0x93,0x7e,0x6f,0x05,0xae,0xa6,0xae,0x04,0xf6,0x5a,0x1f,0x99,0x9c,0xe4,0xbe,0xf1,0x51,0x23,0xc1,0x66,0x6b,0xff,0xee,0xb5,0x08,0xa8,0x61,0x51,0x21,0xe0,0x01,0x0f,0xc1,0xce,0x0f},
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+	{0xd5,0x54,0xeb,0xb3,0x78,0x83,0x73,0xa7,0x7c,0x3c,0x55,0xa5,0x66,0xd3,0x69,0x1d,0xba,0x00,0x28,0xf9,0x62,0xcf,0x26,0x0a,0x17,0x32,0x7e,0x80,0xd5,0x12,0xab,0x01,0xfd,0x66,0xd2,0xf6,0xe7,0x91,0x48,0x9c,0x1b,0x78,0x07,0x03,0x9b,0xa1,0x44,0x07,0x3b,0xe2,0x61,0x60,0x1d,0x8f,0x38,0x88,0x0e,0xd5,0x4b,0x35,0xa3,0xa6,0x3e,0x12,0x96,0x2d,0xe3,0x41,0x90,0x18,0x8d,0x11,0x48,0x58,0x31,0xd8,0xc2,0xe3,0xed,0xb9,0xd9,0x45,0x32,0xd8,0x71,0x42,0xab,0x1e,0x54,0xa1,0x18,0xc9,0xe2,0x61,0x39,0x4a},
+	{0xa0,0xbb,0xe6,0xf8,0xe0,0x3b,0xdc,0x71,0x0a,0xe3,0xff,0x7e,0x34,0xf8,0xce,0xd6,0x6a,0x47,0x3a,0xe1,0x5f,0x42,0x92,0xa9,0x63,0xb7,0x1d,0xfb,0xe3,0xbc,0xd6,0x2c,0x1e,0x3f,0x23,0xf3,0x44,0xd6,0x27,0x03,0x16,0xf0,0xfc,0x34,0x0e,0x26,0x9a,0x49,0x79,0xb9,0xda,0xf2,0x16,0xa7,0xb5,0x83,0x1f,0x11,0xd4,0x9b,0xad,0xee,0xac,0x68,0x10,0xc2,0xd7,0xf3,0x0e,0xc9,0xb4,0x38,0x0c,0x04,0xad,0xb7,0x24,0x6e,0x8e,0x30,0x23,0x3e,0xe7,0xb7,0xf1,0xd9,0x60,0x38,0x97,0xf5,0x08,0xb5,0xd5,0x60,0x57,0x59},
+	{0x97,0x63,0xaa,0x04,0xe1,0xbf,0x29,0x61,0xcb,0xfc,0xa7,0xa4,0x08,0x00,0x96,0x8f,0x58,0x94,0x90,0x7d,0x89,0xc0,0x8b,0x3f,0xa9,0x91,0xb2,0xdc,0x3e,0xa4,0x9f,0x70,0x90,0x27,0x02,0xfd,0xeb,0xcb,0x2a,0x88,0x60,0x57,0x11,0xc4,0x05,0x33,0xaf,0x89,0xf4,0x73,0x34,0x7d,0xe3,0x92,0xf4,0x65,0x2b,0x5a,0x51,0x54,0xdf,0xc5,0xb2,0x2c,0xca,0x2a,0xfd,0x63,0x8c,0x5d,0x0a,0xeb,0xff,0x4e,0x69,0x2e,0x66,0xc1,0x2b,0xd2,0x3a,0xb0,0xcb,0xf8,0x6e,0xf3,0x23,0x27,0x1f,0x13,0xc8,0xf0,0xec,0x29,0xf0,0x70},
+	{0x33,0x3e,0xed,0x2e,0xb3,0x07,0x13,0x46,0xe7,0x81,0x55,0xa4,0x33,0x2f,0x04,0xae,0x66,0x03,0x5f,0x19,0xd3,0x49,0x44,0xc9,0x58,0x48,0x31,0x6c,0x8a,0x5d,0x7d,0x0b,0xb9,0xb0,0x10,0x5e,0xaa,0xaf,0x6a,0x2a,0xa9,0x1a,0x04,0xef,0x70,0xa3,0xf0,0x78,0x1f,0xd6,0x3a,0xaa,0x77,0xfb,0x3e,0x77,0xe1,0xd9,0x4b,0xa7,0xa2,0xa5,0xec,0x44,0x43,0xd5,0x95,0x7b,0x32,0x48,0xd4,0x25,0x1d,0x0f,0x34,0xa3,0x00,0x83,0xd3,0x70,0x2b,0xc5,0xe1,0x60,0x1c,0x53,0x1c,0xde,0xe4,0xe9,0x7d,0x2c,0x51,0x24,0x22,0x27},
+	{0x2e,0x34,0xc5,0x49,0xaf,0x92,0xbc,0x1a,0xd0,0xfa,0xe6,0xb2,0x11,0xd8,0xee,0xff,0x29,0x4e,0xc8,0xfc,0x8d,0x8c,0xa2,0xef,0x43,0xc5,0x4c,0xa4,0x18,0xdf,0xb5,0x11,0xfc,0x75,0xa9,0x42,0x8a,0xbb,0x7b,0xbf,0x58,0xa3,0xad,0x96,0x77,0x39,0x5c,0x8c,0x48,0xaa,0xed,0xcd,0x6f,0xc7,0x7f,0xe2,0xa6,0x20,0xbc,0xf6,0xd7,0x5f,0x73,0x19,0x66,0x42,0xc8,0x42,0xd0,0x90,0xab,0xe3,0x7e,0x54,0x19,0x7f,0x0f,0x8e,0x84,0xeb,0xb9,0x97,0xa4,0x65,0xd0,0xa1,0x03,0x25,0x5f,0x89,0xdf,0x91,0x11,0x91,0xef,0x0f}
+};

external/ed25519-donna/ed25519-donna-batchverify.h

@@ -0,0 +1,275 @@
+/*
+	Ed25519 batch verification
+*/
+
+#define max_batch_size 64
+#define heap_batch_size ((max_batch_size * 2) + 1)
+
+/* which limb is the 128th bit in? */
+static const size_t limb128bits = (128 + bignum256modm_bits_per_limb - 1) / bignum256modm_bits_per_limb;
+
+typedef size_t heap_index_t;
+
+typedef struct batch_heap_t {
+	unsigned char r[heap_batch_size][16]; /* 128 bit random values */
+	ge25519 points[heap_batch_size];
+	bignum256modm scalars[heap_batch_size];
+	heap_index_t heap[heap_batch_size];
+	size_t size;
+} batch_heap;
+
+/* swap two values in the heap */
+static void
+heap_swap(heap_index_t *heap, size_t a, size_t b) {
+	heap_index_t temp;
+	temp = heap[a];
+	heap[a] = heap[b];
+	heap[b] = temp;
+}
+
+/* add the scalar at the end of the list to the heap */
+static void
+heap_insert_next(batch_heap *heap) {
+	size_t node = heap->size, parent;
+	heap_index_t *pheap = heap->heap;
+	bignum256modm *scalars = heap->scalars;
+
+	/* insert at the bottom */
+	pheap[node] = (heap_index_t)node;
+
+	/* sift node up to its sorted spot */
+	parent = (node - 1) / 2;
+	while (node && lt256_modm_batch(scalars[pheap[parent]], scalars[pheap[node]], bignum256modm_limb_size - 1)) {
+		heap_swap(pheap, parent, node);
+		node = parent;
+		parent = (node - 1) / 2;
+	}
+	heap->size++;
+}
+
+/* update the heap when the root element is updated */
+static void
+heap_updated_root(batch_heap *heap, size_t limbsize) {
+	size_t node, parent, childr, childl;
+	heap_index_t *pheap = heap->heap;
+	bignum256modm *scalars = heap->scalars;
+
+	/* sift root to the bottom */
+	parent = 0;
+	node = 1;
+	childl = 1;
+	childr = 2;
+	while ((childr < heap->size)) {
+		node = lt256_modm_batch(scalars[pheap[childl]], scalars[pheap[childr]], limbsize) ? childr : childl;
+		heap_swap(pheap, parent, node);
+		parent = node;
+		childl = (parent * 2) + 1;
+		childr = childl + 1;
+	}
+
+	/* sift root back up to its sorted spot */
+	parent = (node - 1) / 2;
+	while (node && lte256_modm_batch(scalars[pheap[parent]], scalars[pheap[node]], limbsize)) {
+		heap_swap(pheap, parent, node);
+		node = parent;
+		parent = (node - 1) / 2;
+	}
+}
+
+/* build the heap with count elements, count must be >= 3 */
+static void
+heap_build(batch_heap *heap, size_t count) {
+	heap->heap[0] = 0;
+	heap->size = 0;
+	while (heap->size < count)
+		heap_insert_next(heap);
+}
+
+/* extend the heap to contain new_count elements */
+static void
+heap_extend(batch_heap *heap, size_t new_count) {
+	while (heap->size < new_count)
+		heap_insert_next(heap);
+}
+
+/* get the top 2 elements of the heap */
+static void
+heap_get_top2(batch_heap *heap, heap_index_t *max1, heap_index_t *max2, size_t limbsize) {
+	heap_index_t h0 = heap->heap[0], h1 = heap->heap[1], h2 = heap->heap[2];
+	if (lt256_modm_batch(heap->scalars[h1], heap->scalars[h2], limbsize))
+		h1 = h2;
+	*max1 = h0;
+	*max2 = h1;
+}
+
+/* */
+static void
+ge25519_multi_scalarmult_vartime_final(ge25519 *r, ge25519 *point, bignum256modm scalar) {
+	const bignum256modm_element_t topbit = ((bignum256modm_element_t)1 << (bignum256modm_bits_per_limb - 1));
+	size_t limb = limb128bits;
+	bignum256modm_element_t flag;
+
+	if (isone256_modm_batch(scalar)) {
+		/* this will happen most of the time after bos-carter */
+		*r = *point;
+		return;
+	} else if (iszero256_modm_batch(scalar)) {
+		/* this will only happen if all scalars == 0 */
+		memset(r, 0, sizeof(*r));
+		r->y[0] = 1;
+		r->z[0] = 1;
+		return;
+	}
+
+	*r = *point;
+
+	/* find the limb where first bit is set */
+	while (!scalar[limb])
+		limb--;
+
+	/* find the first bit */
+	flag = topbit;
+	while ((scalar[limb] & flag) == 0)
+		flag >>= 1;
+
+	/* exponentiate */
+	for (;;) {
+		ge25519_double(r, r);
+		if (scalar[limb] & flag)
+			ge25519_add(r, r, point);
+
+		flag >>= 1;
+		if (!flag) {
+			if (!limb--)
+				break;
+			flag = topbit;
+		}
+	}
+}
+
+/* count must be >= 5 */
+static void
+ge25519_multi_scalarmult_vartime(ge25519 *r, batch_heap *heap, size_t count) {
+	heap_index_t max1, max2;
+
+	/* start with the full limb size */
+	size_t limbsize = bignum256modm_limb_size - 1;
+
+	/* whether the heap has been extended to include the 128 bit scalars */
+	int extended = 0;
+
+	/* grab an odd number of scalars to build the heap, unknown limb sizes */
+	heap_build(heap, ((count + 1) / 2) | 1);
+
+	for (;;) {
+		heap_get_top2(heap, &max1, &max2, limbsize);
+
+		/* only one scalar remaining, we're done */
+		if (iszero256_modm_batch(heap->scalars[max2]))
+			break;
+
+		/* exhausted another limb? */
+		if (!heap->scalars[max1][limbsize])
+			limbsize -= 1;
+
+		/* can we extend to the 128 bit scalars? */
+		if (!extended && isatmost128bits256_modm_batch(heap->scalars[max1])) {
+			heap_extend(heap, count);
+			heap_get_top2(heap, &max1, &max2, limbsize);
+			extended = 1;
+		}
+
+		sub256_modm_batch(heap->scalars[max1], heap->scalars[max1], heap->scalars[max2], limbsize);
+		ge25519_add(&heap->points[max2], &heap->points[max2], &heap->points[max1]);
+		heap_updated_root(heap, limbsize);
+	}
+
+	ge25519_multi_scalarmult_vartime_final(r, &heap->points[max1], heap->scalars[max1]);
+}
+
+/* not actually used for anything other than testing */
+unsigned char batch_point_buffer[3][32];
+
+static int
+ge25519_is_neutral_vartime(const ge25519 *p) {
+	static const unsigned char zero[32] = {0};
+	unsigned char point_buffer[3][32];
+	curve25519_contract(point_buffer[0], p->x);
+	curve25519_contract(point_buffer[1], p->y);
+	curve25519_contract(point_buffer[2], p->z);
+	memcpy(batch_point_buffer[1], point_buffer[1], 32);
+	return (memcmp(point_buffer[0], zero, 32) == 0) && (memcmp(point_buffer[1], point_buffer[2], 32) == 0);
+}
+
+int
+ED25519_FN(ed25519_sign_open_batch) (const unsigned char **m, size_t *mlen, const unsigned char **pk, const unsigned char **RS, size_t num, int *valid) {
+	batch_heap ALIGN(16) batch;
+	ge25519 ALIGN(16) p;
+	bignum256modm *r_scalars;
+	size_t i, batchsize;
+	unsigned char hram[64];
+	int ret = 0;
+
+	for (i = 0; i < num; i++)
+		valid[i] = 1;
+
+	while (num > 3) {
+		batchsize = (num > max_batch_size) ? max_batch_size : num;
+
+		/* generate r (scalars[batchsize+1]..scalars[2*batchsize] */
+		ED25519_FN(ed25519_randombytes_unsafe) (batch.r, batchsize * 16);
+		r_scalars = &batch.scalars[batchsize + 1];
+		for (i = 0; i < batchsize; i++)
+			expand256_modm(r_scalars[i], batch.r[i], 16);
+
+		/* compute scalars[0] = ((r1s1 + r2s2 + ...)) */
+		for (i = 0; i < batchsize; i++) {
+			expand256_modm(batch.scalars[i], RS[i] + 32, 32);
+			mul256_modm(batch.scalars[i], batch.scalars[i], r_scalars[i]);
+		}
+		for (i = 1; i < batchsize; i++)
+			add256_modm(batch.scalars[0], batch.scalars[0], batch.scalars[i]);
+
+		/* compute scalars[1]..scalars[batchsize] as r[i]*H(R[i],A[i],m[i]) */
+		for (i = 0; i < batchsize; i++) {
+			ed25519_hram(hram, RS[i], pk[i], m[i], mlen[i]);
+			expand256_modm(batch.scalars[i+1], hram, 64);
+			mul256_modm(batch.scalars[i+1], batch.scalars[i+1], r_scalars[i]);
+		}
+
+		/* compute points */
+		batch.points[0] = ge25519_basepoint;
+		for (i = 0; i < batchsize; i++)
+			if (!ge25519_unpack_negative_vartime(&batch.points[i+1], pk[i]))
+				goto fallback;
+		for (i = 0; i < batchsize; i++)
+			if (!ge25519_unpack_negative_vartime(&batch.points[batchsize+i+1], RS[i]))
+				goto fallback;
+
+		ge25519_multi_scalarmult_vartime(&p, &batch, (batchsize * 2) + 1);
+		if (!ge25519_is_neutral_vartime(&p)) {
+			ret |= 2;
+
+			fallback:
+			for (i = 0; i < batchsize; i++) {
+				valid[i] = ED25519_FN(ed25519_sign_open) (m[i], mlen[i], pk[i], RS[i]) ? 0 : 1;
+				ret |= (valid[i] ^ 1);
+			}
+		}
+
+		m += batchsize;
+		mlen += batchsize;
+		pk += batchsize;
+		RS += batchsize;
+		num -= batchsize;
+		valid += batchsize;
+	}
+
+	for (i = 0; i < num; i++) {
+		valid[i] = ED25519_FN(ed25519_sign_open) (m[i], mlen[i], pk[i], RS[i]) ? 0 : 1;
+		ret |= (valid[i] ^ 1);
+	}
+
+	return ret;
+}
+

external/ed25519-donna/ed25519-donna-impl-base.h

@@ -0,0 +1,364 @@
+/*
+	conversions
+*/
+
+DONNA_INLINE static void
+ge25519_p1p1_to_partial(ge25519 *r, const ge25519_p1p1 *p) {
+	curve25519_mul(r->x, p->x, p->t);
+	curve25519_mul(r->y, p->y, p->z);
+	curve25519_mul(r->z, p->z, p->t); 
+}
+
+DONNA_INLINE static void
+ge25519_p1p1_to_full(ge25519 *r, const ge25519_p1p1 *p) {
+	curve25519_mul(r->x, p->x, p->t);
+	curve25519_mul(r->y, p->y, p->z);
+	curve25519_mul(r->z, p->z, p->t); 
+	curve25519_mul(r->t, p->x, p->y); 
+}
+
+static void
+ge25519_full_to_pniels(ge25519_pniels *p, const ge25519 *r) {
+	curve25519_sub(p->ysubx, r->y, r->x);
+	curve25519_add(p->xaddy, r->y, r->x);
+	curve25519_copy(p->z, r->z);
+	curve25519_mul(p->t2d, r->t, ge25519_ec2d);
+}
+
+/*
+	adding & doubling
+*/
+
+static void
+ge25519_add_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519 *q) {
+	bignum25519 a,b,c,d,t,u;
+
+	curve25519_sub(a, p->y, p->x);
+	curve25519_add(b, p->y, p->x);
+	curve25519_sub(t, q->y, q->x);
+	curve25519_add(u, q->y, q->x);
+	curve25519_mul(a, a, t);
+	curve25519_mul(b, b, u);
+	curve25519_mul(c, p->t, q->t);
+	curve25519_mul(c, c, ge25519_ec2d);
+	curve25519_mul(d, p->z, q->z);
+	curve25519_add(d, d, d);
+	curve25519_sub(r->x, b, a);
+	curve25519_add(r->y, b, a);
+	curve25519_add_after_basic(r->z, d, c);
+	curve25519_sub_after_basic(r->t, d, c);
+}
+
+
+static void
+ge25519_double_p1p1(ge25519_p1p1 *r, const ge25519 *p) {
+	bignum25519 a,b,c;
+
+	curve25519_square(a, p->x);
+	curve25519_square(b, p->y);
+	curve25519_square(c, p->z);
+	curve25519_add_reduce(c, c, c);
+	curve25519_add(r->x, p->x, p->y);
+	curve25519_square(r->x, r->x);
+	curve25519_add(r->y, b, a);
+	curve25519_sub(r->z, b, a);
+	curve25519_sub_after_basic(r->x, r->x, r->y);
+	curve25519_sub_after_basic(r->t, c, r->z);
+}
+
+static void
+ge25519_nielsadd2_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519_niels *q, unsigned char signbit) {
+	const bignum25519 *qb = (const bignum25519 *)q;
+	bignum25519 *rb = (bignum25519 *)r;
+	bignum25519 a,b,c;
+
+	curve25519_sub(a, p->y, p->x);
+	curve25519_add(b, p->y, p->x);
+	curve25519_mul(a, a, qb[signbit]); /* x for +, y for - */
+	curve25519_mul(r->x, b, qb[signbit^1]); /* y for +, x for - */
+	curve25519_add(r->y, r->x, a);
+	curve25519_sub(r->x, r->x, a);
+	curve25519_mul(c, p->t, q->t2d);
+	curve25519_add_reduce(r->t, p->z, p->z);
+	curve25519_copy(r->z, r->t);
+	curve25519_add(rb[2+signbit], rb[2+signbit], c); /* z for +, t for - */
+	curve25519_sub(rb[2+(signbit^1)], rb[2+(signbit^1)], c); /* t for +, z for - */
+}
+
+static void
+ge25519_pnielsadd_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519_pniels *q, unsigned char signbit) {
+	const bignum25519 *qb = (const bignum25519 *)q;
+	bignum25519 *rb = (bignum25519 *)r;
+	bignum25519 a,b,c;
+
+	curve25519_sub(a, p->y, p->x);
+	curve25519_add(b, p->y, p->x);
+	curve25519_mul(a, a, qb[signbit]); /* ysubx for +, xaddy for - */
+	curve25519_mul(r->x, b, qb[signbit^1]); /* xaddy for +, ysubx for - */
+	curve25519_add(r->y, r->x, a);
+	curve25519_sub(r->x, r->x, a);
+	curve25519_mul(c, p->t, q->t2d);
+	curve25519_mul(r->t, p->z, q->z);
+	curve25519_add_reduce(r->t, r->t, r->t);
+	curve25519_copy(r->z, r->t);
+	curve25519_add(rb[2+signbit], rb[2+signbit], c); /* z for +, t for - */
+	curve25519_sub(rb[2+(signbit^1)], rb[2+(signbit^1)], c); /* t for +, z for - */
+}
+
+static void
+ge25519_double_partial(ge25519 *r, const ge25519 *p) {
+	ge25519_p1p1 t;
+	ge25519_double_p1p1(&t, p);
+	ge25519_p1p1_to_partial(r, &t);
+}
+
+static void
+ge25519_double(ge25519 *r, const ge25519 *p) {
+	ge25519_p1p1 t;
+	ge25519_double_p1p1(&t, p);
+	ge25519_p1p1_to_full(r, &t);
+}
+
+static void
+ge25519_add(ge25519 *r, const ge25519 *p,  const ge25519 *q) {
+	ge25519_p1p1 t;
+	ge25519_add_p1p1(&t, p, q);
+	ge25519_p1p1_to_full(r, &t);
+}
+
+static void
+ge25519_nielsadd2(ge25519 *r, const ge25519_niels *q) {
+	bignum25519 a,b,c,e,f,g,h;
+
+	curve25519_sub(a, r->y, r->x);
+	curve25519_add(b, r->y, r->x);
+	curve25519_mul(a, a, q->ysubx);
+	curve25519_mul(e, b, q->xaddy);
+	curve25519_add(h, e, a);
+	curve25519_sub(e, e, a);
+	curve25519_mul(c, r->t, q->t2d);
+	curve25519_add(f, r->z, r->z);
+	curve25519_add_after_basic(g, f, c);
+	curve25519_sub_after_basic(f, f, c);
+	curve25519_mul(r->x, e, f);
+	curve25519_mul(r->y, h, g);
+	curve25519_mul(r->z, g, f);
+	curve25519_mul(r->t, e, h);
+}
+
+static void
+ge25519_pnielsadd(ge25519_pniels *r, const ge25519 *p, const ge25519_pniels *q) {
+	bignum25519 a,b,c,x,y,z,t;
+
+	curve25519_sub(a, p->y, p->x);
+	curve25519_add(b, p->y, p->x);
+	curve25519_mul(a, a, q->ysubx);
+	curve25519_mul(x, b, q->xaddy);
+	curve25519_add(y, x, a);
+	curve25519_sub(x, x, a);
+	curve25519_mul(c, p->t, q->t2d);
+	curve25519_mul(t, p->z, q->z);
+	curve25519_add(t, t, t);
+	curve25519_add_after_basic(z, t, c);
+	curve25519_sub_after_basic(t, t, c);
+	curve25519_mul(r->xaddy, x, t);
+	curve25519_mul(r->ysubx, y, z);
+	curve25519_mul(r->z, z, t);
+	curve25519_mul(r->t2d, x, y);
+	curve25519_copy(y, r->ysubx);
+	curve25519_sub(r->ysubx, r->ysubx, r->xaddy);
+	curve25519_add(r->xaddy, r->xaddy, y);
+	curve25519_mul(r->t2d, r->t2d, ge25519_ec2d);
+}
+
+
+/*
+	pack & unpack
+*/
+
+static void
+ge25519_pack(unsigned char r[32], const ge25519 *p) {
+	bignum25519 tx, ty, zi;
+	unsigned char parity[32];
+	curve25519_recip(zi, p->z);
+	curve25519_mul(tx, p->x, zi);
+	curve25519_mul(ty, p->y, zi);
+	curve25519_contract(r, ty);
+	curve25519_contract(parity, tx);
+	r[31] ^= ((parity[0] & 1) << 7);
+}
+
+static int
+ge25519_unpack_negative_vartime(ge25519 *r, const unsigned char p[32]) {
+	static const unsigned char zero[32] = {0};
+	static const bignum25519 one = {1};
+	unsigned char parity = p[31] >> 7;
+	unsigned char check[32];
+	bignum25519 t, root, num, den, d3;
+
+	curve25519_expand(r->y, p);
+	curve25519_copy(r->z, one);
+	curve25519_square(num, r->y); /* x = y^2 */
+	curve25519_mul(den, num, ge25519_ecd); /* den = dy^2 */
+	curve25519_sub_reduce(num, num, r->z); /* x = y^1 - 1 */
+	curve25519_add(den, den, r->z); /* den = dy^2 + 1 */
+
+	/* Computation of sqrt(num/den) */
+	/* 1.: computation of num^((p-5)/8)*den^((7p-35)/8) = (num*den^7)^((p-5)/8) */
+	curve25519_square(t, den);
+	curve25519_mul(d3, t, den);
+	curve25519_square(r->x, d3);
+	curve25519_mul(r->x, r->x, den);
+	curve25519_mul(r->x, r->x, num);
+	curve25519_pow_two252m3(r->x, r->x);
+
+	/* 2. computation of r->x = num * den^3 * (num*den^7)^((p-5)/8) */
+	curve25519_mul(r->x, r->x, d3);
+	curve25519_mul(r->x, r->x, num);
+
+	/* 3. Check if either of the roots works: */
+	curve25519_square(t, r->x);
+	curve25519_mul(t, t, den);
+	curve25519_sub_reduce(root, t, num);
+	curve25519_contract(check, root);
+	if (!ed25519_verify(check, zero, 32)) {
+		curve25519_add_reduce(t, t, num);
+		curve25519_contract(check, t);
+		if (!ed25519_verify(check, zero, 32))
+			return 0;
+		curve25519_mul(r->x, r->x, ge25519_sqrtneg1);
+	}
+
+	curve25519_contract(check, r->x);
+	if ((check[0] & 1) == parity) {
+		curve25519_copy(t, r->x);
+		curve25519_neg(r->x, t);
+	}
+	curve25519_mul(r->t, r->x, r->y);
+	return 1;
+}
+
+
+/*
+	scalarmults
+*/
+
+#define S1_SWINDOWSIZE 5
+#define S1_TABLE_SIZE (1<<(S1_SWINDOWSIZE-2))
+#define S2_SWINDOWSIZE 7
+#define S2_TABLE_SIZE (1<<(S2_SWINDOWSIZE-2))
+
+/* computes [s1]p1 + [s2]basepoint */
+static void 
+ge25519_double_scalarmult_vartime(ge25519 *r, const ge25519 *p1, const bignum256modm s1, const bignum256modm s2) {
+	signed char slide1[256], slide2[256];
+	ge25519_pniels pre1[S1_TABLE_SIZE];
+	ge25519 d1;
+	ge25519_p1p1 t;
+	int32_t i;
+
+	contract256_slidingwindow_modm(slide1, s1, S1_SWINDOWSIZE);
+	contract256_slidingwindow_modm(slide2, s2, S2_SWINDOWSIZE);
+
+	ge25519_double(&d1, p1);
+	ge25519_full_to_pniels(pre1, p1);
+	for (i = 0; i < S1_TABLE_SIZE - 1; i++)
+		ge25519_pnielsadd(&pre1[i+1], &d1, &pre1[i]);
+
+	/* set neutral */
+	memset(r, 0, sizeof(ge25519));
+	r->y[0] = 1;
+	r->z[0] = 1;
+
+	i = 255;
+	while ((i >= 0) && !(slide1[i] | slide2[i]))
+		i--;
+
+	for (; i >= 0; i--) {
+		ge25519_double_p1p1(&t, r);
+
+		if (slide1[i]) {
+			ge25519_p1p1_to_full(r, &t);
+			ge25519_pnielsadd_p1p1(&t, r, &pre1[abs(slide1[i]) / 2], (unsigned char)slide1[i] >> 7);
+		}
+
+		if (slide2[i]) {
+			ge25519_p1p1_to_full(r, &t);
+			ge25519_nielsadd2_p1p1(&t, r, &ge25519_niels_sliding_multiples[abs(slide2[i]) / 2], (unsigned char)slide2[i] >> 7);
+		}
+
+		ge25519_p1p1_to_partial(r, &t);
+	}
+}
+
+
+
+#if !defined(HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS)
+
+static uint32_t
+ge25519_windowb_equal(uint32_t b, uint32_t c) {
+	return ((b ^ c) - 1) >> 31;
+}
+
+static void
+ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
+	bignum25519 neg;
+	uint32_t sign = (uint32_t)((unsigned char)b >> 7);
+	uint32_t mask = ~(sign - 1);
+	uint32_t u = (b + mask) ^ mask;
+	uint32_t i;
+
+	/* ysubx, xaddy, t2d in packed form. initialize to ysubx = 1, xaddy = 1, t2d = 0 */
+	uint8_t packed[96] = {0};
+	packed[0] = 1;
+	packed[32] = 1;
+
+	for (i = 0; i < 8; i++)
+		curve25519_move_conditional_bytes(packed, table[(pos * 8) + i], ge25519_windowb_equal(u, i + 1));
+
+	/* expand in to t */
+	curve25519_expand(t->ysubx, packed +  0);
+	curve25519_expand(t->xaddy, packed + 32);
+	curve25519_expand(t->t2d  , packed + 64);
+
+	/* adjust for sign */
+	curve25519_swap_conditional(t->ysubx, t->xaddy, sign);
+	curve25519_neg(neg, t->t2d);
+	curve25519_swap_conditional(t->t2d, neg, sign);
+}
+
+#endif /* HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS */
+
+
+/* computes [s]basepoint */
+static void
+ge25519_scalarmult_base_niels(ge25519 *r, const uint8_t basepoint_table[256][96], const bignum256modm s) {
+	signed char b[64];
+	uint32_t i;
+	ge25519_niels t;
+
+	contract256_window4_modm(b, s);
+
+	ge25519_scalarmult_base_choose_niels(&t, basepoint_table, 0, b[1]);
+	curve25519_sub_reduce(r->x, t.xaddy, t.ysubx);
+	curve25519_add_reduce(r->y, t.xaddy, t.ysubx);
+	memset(r->z, 0, sizeof(bignum25519));
+	curve25519_copy(r->t, t.t2d);
+	r->z[0] = 2;	
+	for (i = 3; i < 64; i += 2) {
+		ge25519_scalarmult_base_choose_niels(&t, basepoint_table, i / 2, b[i]);
+		ge25519_nielsadd2(r, &t);
+	}
+	ge25519_double_partial(r, r);
+	ge25519_double_partial(r, r);
+	ge25519_double_partial(r, r);
+	ge25519_double(r, r);
+	ge25519_scalarmult_base_choose_niels(&t, basepoint_table, 0, b[0]);
+	curve25519_mul(t.t2d, t.t2d, ge25519_ecd);
+	ge25519_nielsadd2(r, &t);
+	for(i = 2; i < 64; i += 2) {
+		ge25519_scalarmult_base_choose_niels(&t, basepoint_table, i / 2, b[i]);
+		ge25519_nielsadd2(r, &t);
+	}
+}
+

external/ed25519-donna/ed25519-donna-impl-sse2.h

@@ -0,0 +1,390 @@
+/*
+	conversions
+*/
+
+static void
+ge25519_p1p1_to_partial(ge25519 *r, const ge25519_p1p1 *p) {
+	packed64bignum25519 ALIGN(16) xz, tt, xzout;
+	curve25519_mul(r->y, p->y, p->z);
+	curve25519_tangle64(xz, p->x, p->z);
+	curve25519_tangleone64(tt, p->t);
+	curve25519_mul_packed64(xzout, xz, tt);
+	curve25519_untangle64(r->x, r->z, xzout);
+}
+
+static void 
+ge25519_p1p1_to_full(ge25519 *r, const ge25519_p1p1 *p) {
+	packed64bignum25519 ALIGN(16) zy, xt, xx, zz, ty;
+	curve25519_tangle64(ty, p->t, p->y);
+	curve25519_tangleone64(xx, p->x);
+	curve25519_mul_packed64(xt, xx, ty);
+	curve25519_untangle64(r->x, r->t, xt);
+	curve25519_tangleone64(zz, p->z);
+	curve25519_mul_packed64(zy, zz, ty);
+	curve25519_untangle64(r->z, r->y, zy);
+}
+
+static void
+ge25519_full_to_pniels(ge25519_pniels *p, const ge25519 *r) {
+	curve25519_sub(p->ysubx, r->y, r->x);
+	curve25519_add(p->xaddy, r->x, r->y);
+	curve25519_copy(p->z, r->z);
+	curve25519_mul(p->t2d, r->t, ge25519_ec2d);
+}
+
+/*
+	adding & doubling
+*/
+
+static void
+ge25519_add_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519 *q) {
+	bignum25519 ALIGN(16) a,b,c,d;
+	packed32bignum25519 ALIGN(16) xx, yy, yypxx, yymxx, bd, ac, bdmac, bdpac;
+	packed64bignum25519 ALIGN(16) at, bu, atbu, ptz, qtz, cd;
+
+	curve25519_tangle32(yy, p->y, q->y);
+	curve25519_tangle32(xx, p->x, q->x);
+	curve25519_add_packed32(yypxx, yy, xx);
+	curve25519_sub_packed32(yymxx, yy, xx);
+	curve25519_tangle64_from32(at, bu, yymxx, yypxx);
+	curve25519_mul_packed64(atbu, at, bu);
+	curve25519_untangle64(a, b, atbu);
+	curve25519_tangle64(ptz, p->t, p->z);
+	curve25519_tangle64(qtz, q->t, q->z);
+	curve25519_mul_packed64(cd, ptz, qtz);
+	curve25519_untangle64(c, d, cd);
+	curve25519_mul(c, c, ge25519_ec2d);
+	curve25519_add_reduce(d, d, d);
+	/* reduce, so no after_basic is needed later */
+	curve25519_tangle32(bd, b, d);
+	curve25519_tangle32(ac, a, c);
+	curve25519_sub_packed32(bdmac, bd, ac);
+	curve25519_add_packed32(bdpac, bd, ac);
+	curve25519_untangle32(r->x, r->t, bdmac);
+	curve25519_untangle32(r->y, r->z, bdpac);
+}
+
+
+static void
+ge25519_double_p1p1(ge25519_p1p1 *r, const ge25519 *p) {
+	bignum25519 ALIGN(16) a,b,c,x;
+	packed64bignum25519 ALIGN(16) xy, zx, ab, cx;
+	packed32bignum25519 ALIGN(16) xc, yz, xt, yc, ac, bc;
+
+	curve25519_add(x, p->x, p->y);
+	curve25519_tangle64(xy, p->x, p->y);
+	curve25519_square_packed64(ab, xy);
+	curve25519_untangle64(a, b, ab);
+	curve25519_tangle64(zx, p->z, x);
+	curve25519_square_packed64(cx, zx);
+	curve25519_untangle64(c, x, cx);
+	curve25519_tangle32(bc, b, c);
+	curve25519_tangle32(ac, a, c);
+	curve25519_add_reduce_packed32(yc, bc, ac);
+	curve25519_untangle32(r->y, c, yc);
+	curve25519_sub(r->z, b, a);
+	curve25519_tangle32(yz, r->y, r->z);
+	curve25519_tangle32(xc, x, c);
+	curve25519_sub_after_basic_packed32(xt, xc, yz);
+	curve25519_untangle32(r->x, r->t, xt);
+}
+
+static void
+ge25519_nielsadd2_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519_niels *q, unsigned char signbit) {
+	const bignum25519 *qb = (const bignum25519 *)q;
+	bignum25519 *rb = (bignum25519 *)r;
+	bignum25519 ALIGN(16) a,b,c;
+	packed64bignum25519 ALIGN(16) ab, yx, aybx;
+	packed32bignum25519 ALIGN(16) bd, ac, bdac;
+
+	curve25519_sub(a, p->y, p->x);
+	curve25519_add(b, p->y, p->x);
+	curve25519_tangle64(ab, a, b);
+	curve25519_tangle64(yx, qb[signbit], qb[signbit^1]);
+	curve25519_mul_packed64(aybx, ab, yx);
+	curve25519_untangle64(a, b, aybx);
+	curve25519_add(r->y, b, a);
+	curve25519_add_reduce(r->t, p->z, p->z);
+	curve25519_mul(c, p->t, q->t2d);
+	curve25519_copy(r->z, r->t);
+	curve25519_add(rb[2+signbit], rb[2+signbit], c);
+	curve25519_tangle32(bd, b, rb[2+(signbit^1)]);
+	curve25519_tangle32(ac, a, c);
+	curve25519_sub_packed32(bdac, bd, ac);
+	curve25519_untangle32(r->x, rb[2+(signbit^1)], bdac);
+}
+
+static void
+ge25519_pnielsadd_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519_pniels *q, unsigned char signbit) {
+	const bignum25519 *qb = (const bignum25519 *)q;
+	bignum25519 *rb = (bignum25519 *)r;
+	bignum25519 ALIGN(16) a,b,c;
+	packed64bignum25519 ALIGN(16) ab, yx, aybx, zt, zt2d, tc;
+	packed32bignum25519 ALIGN(16) bd, ac, bdac;
+
+	curve25519_sub(a, p->y, p->x);
+	curve25519_add(b, p->y, p->x);
+	curve25519_tangle64(ab, a, b);
+	curve25519_tangle64(yx, qb[signbit], qb[signbit^1]);
+	curve25519_mul_packed64(aybx, ab, yx);
+	curve25519_untangle64(a, b, aybx);
+	curve25519_add(r->y, b, a);
+	curve25519_tangle64(zt, p->z, p->t);
+	curve25519_tangle64(zt2d, q->z, q->t2d);
+	curve25519_mul_packed64(tc, zt, zt2d);
+	curve25519_untangle64(r->t, c, tc);
+	curve25519_add_reduce(r->t, r->t, r->t);
+	curve25519_copy(r->z, r->t);
+	curve25519_add(rb[2+signbit], rb[2+signbit], c);
+	curve25519_tangle32(bd, b, rb[2+(signbit^1)]);
+	curve25519_tangle32(ac, a, c);
+	curve25519_sub_packed32(bdac, bd, ac);
+	curve25519_untangle32(r->x, rb[2+(signbit^1)], bdac);
+}
+
+static void
+ge25519_double(ge25519 *r, const ge25519 *p) {
+	ge25519_p1p1 ALIGN(16) t;
+	ge25519_double_p1p1(&t, p);
+	ge25519_p1p1_to_full(r, &t);
+}
+
+static void
+ge25519_add(ge25519 *r, const ge25519 *p, const ge25519 *q) {
+	ge25519_p1p1 ALIGN(16) t;
+	ge25519_add_p1p1(&t, p, q);
+	ge25519_p1p1_to_full(r, &t);
+}
+
+static void
+ge25519_double_partial(ge25519 *r, const ge25519 *p) {
+	ge25519_p1p1 ALIGN(16) t;
+	ge25519_double_p1p1(&t, p);
+	ge25519_p1p1_to_partial(r, &t);
+}
+
+static void
+ge25519_nielsadd2(ge25519 *r, const ge25519_niels *q) {
+	packed64bignum25519 ALIGN(16) ab, yx, aybx, eg, ff, hh, xz, ty;
+	packed32bignum25519 ALIGN(16) bd, ac, bdac;
+	bignum25519 ALIGN(16) a,b,c,d,e,f,g,h;
+
+	curve25519_sub(a, r->y, r->x);
+	curve25519_add(b, r->y, r->x);
+	curve25519_tangle64(ab, a, b);
+	curve25519_tangle64(yx, q->ysubx, q->xaddy);
+	curve25519_mul_packed64(aybx, ab, yx);
+	curve25519_untangle64(a, b, aybx);
+	curve25519_add(h, b, a);
+	curve25519_add_reduce(d, r->z, r->z);
+	curve25519_mul(c, r->t, q->t2d);
+	curve25519_add(g, d, c); /* d is reduced, so no need for after_basic */
+	curve25519_tangle32(bd, b, d);
+	curve25519_tangle32(ac, a, c);
+	curve25519_sub_packed32(bdac, bd, ac); /* d is reduced, so no need for after_basic */
+	curve25519_untangle32(e, f, bdac);
+	curve25519_tangle64(eg, e, g);
+	curve25519_tangleone64(ff, f);
+	curve25519_mul_packed64(xz, eg, ff);
+	curve25519_untangle64(r->x, r->z, xz);
+	curve25519_tangleone64(hh, h);
+	curve25519_mul_packed64(ty, eg, hh);
+	curve25519_untangle64(r->t, r->y, ty);
+}
+
+static void
+ge25519_pnielsadd(ge25519_pniels *r, const ge25519 *p, const ge25519_pniels *q) {
+	ge25519_p1p1 ALIGN(16) t;
+	ge25519 ALIGN(16) f;
+	ge25519_pnielsadd_p1p1(&t, p, q, 0);
+	ge25519_p1p1_to_full(&f, &t);
+	ge25519_full_to_pniels(r, &f);
+}
+
+/*
+	pack & unpack
+*/
+
+static void
+ge25519_pack(unsigned char r[32], const ge25519 *p) {
+	bignum25519 ALIGN(16) tx, ty, zi;
+	unsigned char parity[32];
+	curve25519_recip(zi, p->z);
+	curve25519_mul(tx, p->x, zi);
+	curve25519_mul(ty, p->y, zi);
+	curve25519_contract(r, ty);
+	curve25519_contract(parity, tx);
+	r[31] ^= ((parity[0] & 1) << 7);
+}
+
+
+static int
+ge25519_unpack_negative_vartime(ge25519 *r, const unsigned char p[32]) {
+	static const bignum25519 ALIGN(16) one = {1};
+	static const unsigned char zero[32] = {0};
+	unsigned char parity = p[31] >> 7;
+	unsigned char check[32];
+	bignum25519 ALIGN(16) t, root, num, den, d3;
+
+	curve25519_expand(r->y, p);
+	curve25519_copy(r->z, one);
+	curve25519_square_times(num, r->y, 1); /* x = y^2 */
+	curve25519_mul(den, num, ge25519_ecd); /* den = dy^2 */
+	curve25519_sub_reduce(num,  num, r->z); /* x = y^2 - 1 */
+	curve25519_add(den, den, r->z); /* den = dy^2 + 1 */
+
+	/* Computation of sqrt(num/den) */
+	/* 1.: computation of num^((p-5)/8)*den^((7p-35)/8) = (num*den^7)^((p-5)/8) */
+	curve25519_square_times(t, den, 1);
+	curve25519_mul(d3, t, den);
+	curve25519_square_times(r->x, d3, 1);
+	curve25519_mul(r->x, r->x, den);
+	curve25519_mul(r->x, r->x, num);
+	curve25519_pow_two252m3(r->x, r->x);
+
+	/* 2. computation of r->x = t * num * den^3 */
+	curve25519_mul(r->x, r->x, d3);
+	curve25519_mul(r->x, r->x, num);
+
+	/* 3. Check if either of the roots works: */
+	curve25519_square_times(t, r->x, 1);
+	curve25519_mul(t, t, den);
+	curve25519_copy(root, t);
+	curve25519_sub_reduce(root,  root, num);
+	curve25519_contract(check, root);
+	if (!ed25519_verify(check, zero, 32)) {
+		curve25519_add_reduce(t, t, num);
+		curve25519_contract(check, t);
+		if (!ed25519_verify(check, zero, 32))
+			return 0;
+		curve25519_mul(r->x, r->x, ge25519_sqrtneg1);
+	}
+
+	curve25519_contract(check, r->x);
+	if ((check[0] & 1) == parity) {
+		curve25519_copy(t, r->x);
+		curve25519_neg(r->x, t);
+	}
+	curve25519_mul(r->t, r->x, r->y);
+	return 1;
+}
+
+
+
+/*
+	scalarmults
+*/
+
+#define S1_SWINDOWSIZE 5
+#define S1_TABLE_SIZE (1<<(S1_SWINDOWSIZE-2))
+#define S2_SWINDOWSIZE 7
+#define S2_TABLE_SIZE (1<<(S2_SWINDOWSIZE-2))
+
+static void
+ge25519_double_scalarmult_vartime(ge25519 *r, const ge25519 *p1, const bignum256modm s1, const bignum256modm s2) {
+	signed char slide1[256], slide2[256];
+	ge25519_pniels ALIGN(16) pre1[S1_TABLE_SIZE];
+	ge25519 ALIGN(16) d1;
+	ge25519_p1p1 ALIGN(16) t;
+	int32_t i;
+
+	contract256_slidingwindow_modm(slide1, s1, S1_SWINDOWSIZE);
+	contract256_slidingwindow_modm(slide2, s2, S2_SWINDOWSIZE);
+
+	ge25519_double(&d1, p1);
+	ge25519_full_to_pniels(pre1, p1);
+	for (i = 0; i < S1_TABLE_SIZE - 1; i++)
+		ge25519_pnielsadd(&pre1[i+1], &d1, &pre1[i]);
+
+	/* set neutral */
+	memset(r, 0, sizeof(ge25519));
+	r->y[0] = 1;
+	r->z[0] = 1;
+
+	i = 255;
+	while ((i >= 0) && !(slide1[i] | slide2[i]))
+		i--;
+
+	for (; i >= 0; i--) {
+		ge25519_double_p1p1(&t, r);
+
+		if (slide1[i]) {
+			ge25519_p1p1_to_full(r, &t);
+			ge25519_pnielsadd_p1p1(&t, r, &pre1[abs(slide1[i]) / 2], (unsigned char)slide1[i] >> 7);
+		}
+
+		if (slide2[i]) {
+			ge25519_p1p1_to_full(r, &t);
+			ge25519_nielsadd2_p1p1(&t, r, &ge25519_niels_sliding_multiples[abs(slide2[i]) / 2], (unsigned char)slide2[i] >> 7);
+		}
+
+		ge25519_p1p1_to_partial(r, &t);
+	}
+}
+
+#if !defined(HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS)
+
+static uint32_t
+ge25519_windowb_equal(uint32_t b, uint32_t c) {
+	return ((b ^ c) - 1) >> 31;
+}
+
+static void
+ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) {
+	bignum25519 ALIGN(16) neg;
+	uint32_t sign = (uint32_t)((unsigned char)b >> 7);
+	uint32_t mask = ~(sign - 1);
+	uint32_t u = (b + mask) ^ mask;
+	uint32_t i;
+
+	/* ysubx, xaddy, t2d in packed form. initialize to ysubx = 1, xaddy = 1, t2d = 0 */
+	uint8_t ALIGN(16) packed[96] = {0};
+	packed[0] = 1;
+	packed[32] = 1;
+
+	for (i = 0; i < 8; i++)
+		curve25519_move_conditional_bytes(packed, table[(pos * 8) + i], ge25519_windowb_equal(u, i + 1));
+
+	/* expand in to t */
+	curve25519_expand(t->ysubx, packed +  0);
+	curve25519_expand(t->xaddy, packed + 32);
+	curve25519_expand(t->t2d  , packed + 64);
+
+	/* adjust for sign */
+	curve25519_swap_conditional(t->ysubx, t->xaddy, sign);
+	curve25519_neg(neg, t->t2d);
+	curve25519_swap_conditional(t->t2d, neg, sign);
+}
+
+#endif /* HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS */
+
+static void
+ge25519_scalarmult_base_niels(ge25519 *r, const uint8_t table[256][96], const bignum256modm s) {
+	signed char b[64];
+	uint32_t i;
+	ge25519_niels ALIGN(16) t;
+
+	contract256_window4_modm(b, s);
+
+	ge25519_scalarmult_base_choose_niels(&t, table, 0, b[1]);
+	curve25519_sub_reduce(r->x, t.xaddy, t.ysubx);
+	curve25519_add_reduce(r->y, t.xaddy, t.ysubx);
+	memset(r->z, 0, sizeof(bignum25519)); 
+	r->z[0] = 2;
+	curve25519_copy(r->t, t.t2d);
+	for (i = 3; i < 64; i += 2) {
+		ge25519_scalarmult_base_choose_niels(&t, table, i / 2, b[i]);
+		ge25519_nielsadd2(r, &t);
+	}
+	ge25519_double_partial(r, r);
+	ge25519_double_partial(r, r);
+	ge25519_double_partial(r, r);
+	ge25519_double(r, r);
+	ge25519_scalarmult_base_choose_niels(&t, table, 0, b[0]);
+	curve25519_mul(t.t2d, t.t2d, ge25519_ecd);
+	ge25519_nielsadd2(r, &t);
+	for(i = 2; i < 64; i += 2) {
+		ge25519_scalarmult_base_choose_niels(&t, table, i / 2, b[i]);
+		ge25519_nielsadd2(r, &t);
+	}
+}

external/ed25519-donna/ed25519-donna-portable-identify.h

@@ -0,0 +1,103 @@
+/* os */
+#if defined(_WIN32)	|| defined(_WIN64) || defined(__TOS_WIN__) || defined(__WINDOWS__)
+	#define OS_WINDOWS
+#elif defined(sun) || defined(__sun) || defined(__SVR4) || defined(__svr4__)
+	#define OS_SOLARIS
+#else
+	#include <sys/param.h> /* need this to define BSD */
+	#define OS_NIX
+	#if defined(__linux__)
+		#define OS_LINUX
+	#elif defined(BSD)
+		#define OS_BSD
+		#if defined(MACOS_X) || (defined(__APPLE__) & defined(__MACH__))
+			#define OS_OSX
+		#elif defined(macintosh) || defined(Macintosh)
+			#define OS_MAC
+		#elif defined(__OpenBSD__)
+			#define OS_OPENBSD
+		#endif
+	#endif
+#endif
+
+
+/* compiler */
+#if defined(_MSC_VER)
+	#define COMPILER_MSVC
+#endif
+#if defined(__ICC)
+	#define COMPILER_INTEL
+#endif
+#if defined(__GNUC__)
+	#if (__GNUC__ >= 3)
+		#define COMPILER_GCC ((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100) + (__GNUC_PATCHLEVEL__))
+	#else
+		#define COMPILER_GCC ((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100)                        )
+	#endif
+#endif
+#if defined(__PATHCC__)
+	#define COMPILER_PATHCC
+#endif
+#if defined(__clang__)
+	#define COMPILER_CLANG ((__clang_major__ * 10000) + (__clang_minor__ * 100) + (__clang_patchlevel__))
+#endif
+
+
+
+/* cpu */
+#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__ ) || defined(_M_X64)
+	#define CPU_X86_64
+#elif defined(__i586__) || defined(__i686__) || (defined(_M_IX86) && (_M_IX86 >= 500))
+	#define CPU_X86 500
+#elif defined(__i486__) || (defined(_M_IX86) && (_M_IX86 >= 400))
+	#define CPU_X86 400
+#elif defined(__i386__) || (defined(_M_IX86) && (_M_IX86 >= 300)) || defined(__X86__) || defined(_X86_) || defined(__I86__)
+	#define CPU_X86 300
+#elif defined(__ia64__) || defined(_IA64) || defined(__IA64__) || defined(_M_IA64) || defined(__ia64)
+	#define CPU_IA64
+#endif
+
+#if defined(__sparc__) || defined(__sparc) || defined(__sparcv9)
+	#define CPU_SPARC
+	#if defined(__sparcv9)
+		#define CPU_SPARC64
+	#endif
+#endif
+
+#if defined(powerpc) || defined(__PPC__) || defined(__ppc__) || defined(_ARCH_PPC) || defined(__powerpc__) || defined(__powerpc) || defined(POWERPC) || defined(_M_PPC)
+	#define CPU_PPC
+	#if defined(_ARCH_PWR7)
+		#define CPU_POWER7
+	#elif defined(__64BIT__)
+		#define CPU_PPC64
+	#else
+		#define CPU_PPC32
+	#endif
+#endif
+
+#if defined(__hppa__) || defined(__hppa)
+	#define CPU_HPPA
+#endif
+
+#if defined(__alpha__) || defined(__alpha) || defined(_M_ALPHA)
+	#define CPU_ALPHA
+#endif
+
+/* 64 bit cpu */
+#if defined(CPU_X86_64) || defined(CPU_IA64) || defined(CPU_SPARC64) || defined(__64BIT__) || defined(__LP64__) || defined(_LP64) || (defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64))
+	#define CPU_64BITS
+#endif
+
+#if defined(COMPILER_MSVC)
+	typedef signed char int8_t;
+	typedef unsigned char uint8_t;
+	typedef signed short int16_t;
+	typedef unsigned short uint16_t;
+	typedef signed int int32_t;
+	typedef unsigned int uint32_t;
+	typedef signed __int64 int64_t;
+	typedef unsigned __int64 uint64_t;
+#else
+	#include <stdint.h>
+#endif
+

external/ed25519-donna/ed25519-donna-portable.h

@@ -0,0 +1,136 @@
+#include "ed25519-donna-portable-identify.h"
+
+#define mul32x32_64(a,b) (((uint64_t)(a))*(b))
+
+/* platform */
+#if defined(COMPILER_MSVC)
+	#include <intrin.h>
+	#if !defined(_DEBUG)
+		#undef mul32x32_64		
+		#define mul32x32_64(a,b) __emulu(a,b)
+	#endif
+	#undef inline
+	#define inline __forceinline
+	#define DONNA_INLINE __forceinline
+	#define DONNA_NOINLINE __declspec(noinline)
+	#define ALIGN(x) __declspec(align(x))
+	#define ROTL32(a,b) _rotl(a,b)
+	#define ROTR32(a,b) _rotr(a,b)
+#else
+	#include <sys/param.h>
+	#define DONNA_INLINE inline __attribute__((always_inline))
+	#define DONNA_NOINLINE __attribute__((noinline))
+        #undef ALIGN
+	#define ALIGN(x) __attribute__((aligned(x)))
+	#define ROTL32(a,b) (((a) << (b)) | ((a) >> (32 - b)))
+	#define ROTR32(a,b) (((a) >> (b)) | ((a) << (32 - b)))
+#endif
+
+/* uint128_t */
+#if defined(CPU_64BITS) && !defined(ED25519_FORCE_32BIT)
+	#if defined(COMPILER_CLANG) && (COMPILER_CLANG >= 30100)
+		#define HAVE_NATIVE_UINT128
+		typedef unsigned __int128 uint128_t;
+	#elif defined(COMPILER_MSVC)
+		#define HAVE_UINT128
+		typedef struct uint128_t {
+			uint64_t lo, hi;
+		} uint128_t;
+		#define mul64x64_128(out,a,b) out.lo = _umul128(a,b,&out.hi);
+		#define shr128_pair(out,hi,lo,shift) out = __shiftright128(lo, hi, shift);
+		#define shl128_pair(out,hi,lo,shift) out = __shiftleft128(lo, hi, shift);
+		#define shr128(out,in,shift) shr128_pair(out, in.hi, in.lo, shift)
+		#define shl128(out,in,shift) shl128_pair(out, in.hi, in.lo, shift)
+		#define add128(a,b) { uint64_t p = a.lo; a.lo += b.lo; a.hi += b.hi + (a.lo < p); }
+		#define add128_64(a,b) { uint64_t p = a.lo; a.lo += b; a.hi += (a.lo < p); }
+		#define lo128(a) (a.lo)
+		#define hi128(a) (a.hi)
+	#elif defined(COMPILER_GCC) && !defined(HAVE_NATIVE_UINT128)
+		#if defined(__SIZEOF_INT128__)
+			#define HAVE_NATIVE_UINT128
+			typedef unsigned __int128 uint128_t;
+		#elif (COMPILER_GCC >= 40400)
+			#define HAVE_NATIVE_UINT128
+			typedef unsigned uint128_t __attribute__((mode(TI)));
+		#elif defined(CPU_X86_64)
+			#define HAVE_UINT128
+			typedef struct uint128_t {
+				uint64_t lo, hi;
+			} uint128_t;
+			#define mul64x64_128(out,a,b) __asm__ ("mulq %3" : "=a" (out.lo), "=d" (out.hi) : "a" (a), "rm" (b));
+			#define shr128_pair(out,hi,lo,shift) __asm__ ("shrdq %2,%1,%0" : "+r" (lo) : "r" (hi), "J" (shift)); out = lo;
+			#define shl128_pair(out,hi,lo,shift) __asm__ ("shldq %2,%1,%0" : "+r" (hi) : "r" (lo), "J" (shift)); out = hi;
+			#define shr128(out,in,shift) shr128_pair(out,in.hi, in.lo, shift)
+			#define shl128(out,in,shift) shl128_pair(out,in.hi, in.lo, shift)
+			#define add128(a,b) __asm__ ("addq %4,%2; adcq %5,%3" : "=r" (a.hi), "=r" (a.lo) : "1" (a.lo), "0" (a.hi), "rm" (b.lo), "rm" (b.hi) : "cc");
+			#define add128_64(a,b) __asm__ ("addq %4,%2; adcq $0,%3" : "=r" (a.hi), "=r" (a.lo) : "1" (a.lo), "0" (a.hi), "rm" (b) : "cc");
+			#define lo128(a) (a.lo)
+			#define hi128(a) (a.hi)
+		#endif
+	#endif
+
+	#if defined(HAVE_NATIVE_UINT128)
+		#define HAVE_UINT128
+		#define mul64x64_128(out,a,b) out = (uint128_t)a * b;
+		#define shr128_pair(out,hi,lo,shift) out = (uint64_t)((((uint128_t)hi << 64) | lo) >> (shift));
+		#define shl128_pair(out,hi,lo,shift) out = (uint64_t)(((((uint128_t)hi << 64) | lo) << (shift)) >> 64);
+		#define shr128(out,in,shift) out = (uint64_t)(in >> (shift));
+		#define shl128(out,in,shift) out = (uint64_t)((in << shift) >> 64);
+		#define add128(a,b) a += b;
+		#define add128_64(a,b) a += (uint64_t)b;
+		#define lo128(a) ((uint64_t)a)
+		#define hi128(a) ((uint64_t)(a >> 64))
+	#endif
+
+	#if !defined(HAVE_UINT128)
+		#error Need a uint128_t implementation!
+	#endif
+#endif
+
+/* endian */
+#if !defined(ED25519_OPENSSLRNG)
+static inline void U32TO8_LE(unsigned char *p, const uint32_t v) {
+	p[0] = (unsigned char)(v      );
+	p[1] = (unsigned char)(v >>  8);
+	p[2] = (unsigned char)(v >> 16);
+	p[3] = (unsigned char)(v >> 24);
+}
+#endif
+
+#if !defined(HAVE_UINT128)
+static inline uint32_t U8TO32_LE(const unsigned char *p) {
+	return
+	(((uint32_t)(p[0])      ) | 
+	 ((uint32_t)(p[1]) <<  8) |
+	 ((uint32_t)(p[2]) << 16) |
+	 ((uint32_t)(p[3]) << 24));
+}
+#else
+static inline uint64_t U8TO64_LE(const unsigned char *p) {
+	return
+	(((uint64_t)(p[0])      ) |
+	 ((uint64_t)(p[1]) <<  8) |
+	 ((uint64_t)(p[2]) << 16) |
+	 ((uint64_t)(p[3]) << 24) |
+	 ((uint64_t)(p[4]) << 32) |
+	 ((uint64_t)(p[5]) << 40) |
+	 ((uint64_t)(p[6]) << 48) |
+	 ((uint64_t)(p[7]) << 56));
+}
+
+static inline void U64TO8_LE(unsigned char *p, const uint64_t v) {
+	p[0] = (unsigned char)(v      );
+	p[1] = (unsigned char)(v >>  8);
+	p[2] = (unsigned char)(v >> 16);
+	p[3] = (unsigned char)(v >> 24);
+	p[4] = (unsigned char)(v >> 32);
+	p[5] = (unsigned char)(v >> 40);
+	p[6] = (unsigned char)(v >> 48);
+	p[7] = (unsigned char)(v >> 56);
+}
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+

external/ed25519-donna/ed25519-donna.h

@@ -0,0 +1,115 @@
+/*
+	Public domain by Andrew M. <liquidsun@gmail.com>
+	Modified from the amd64-51-30k implementation by
+		Daniel J. Bernstein
+		Niels Duif
+		Tanja Lange
+		Peter Schwabe
+		Bo-Yin Yang
+*/
+
+
+#include "ed25519-donna-portable.h"
+
+#if defined(ED25519_SSE2)
+#else
+	#if defined(HAVE_UINT128) && !defined(ED25519_FORCE_32BIT)
+		#define ED25519_64BIT
+	#else
+		#define ED25519_32BIT
+	#endif
+#endif
+
+#if !defined(ED25519_NO_INLINE_ASM)
+	/* detect extra features first so un-needed functions can be disabled throughout */
+	#if defined(ED25519_SSE2)
+		#if defined(COMPILER_GCC) && defined(CPU_X86)
+			#define ED25519_GCC_32BIT_SSE_CHOOSE
+		#elif defined(COMPILER_GCC) && defined(CPU_X86_64)
+			#define ED25519_GCC_64BIT_SSE_CHOOSE
+		#endif
+	#else
+		#if defined(CPU_X86_64)
+			#if defined(COMPILER_GCC) 
+				#if defined(ED25519_64BIT)
+					#define ED25519_GCC_64BIT_X86_CHOOSE
+				#else
+					#define ED25519_GCC_64BIT_32BIT_CHOOSE
+				#endif
+			#endif
+		#endif
+	#endif
+#endif
+
+#if defined(ED25519_SSE2)
+	#include "curve25519-donna-sse2.h"
+#elif defined(ED25519_64BIT)
+	#include "curve25519-donna-64bit.h"
+#else
+	#include "curve25519-donna-32bit.h"
+#endif
+
+#include "curve25519-donna-helpers.h"
+
+/* separate uint128 check for 64 bit sse2 */
+#if defined(HAVE_UINT128) && !defined(ED25519_FORCE_32BIT)
+	#include "modm-donna-64bit.h"
+#else
+	#include "modm-donna-32bit.h"
+#endif
+
+typedef unsigned char hash_512bits[64];
+
+/*
+	Timing safe memory compare
+*/
+static int
+ed25519_verify(const unsigned char *x, const unsigned char *y, size_t len) {
+	size_t differentbits = 0;
+	while (len--)
+		differentbits |= (*x++ ^ *y++);
+	return (int) (1 & ((differentbits - 1) >> 8));
+}
+
+
+/*
+ * Arithmetic on the twisted Edwards curve -x^2 + y^2 = 1 + dx^2y^2
+ * with d = -(121665/121666) = 37095705934669439343138083508754565189542113879843219016388785533085940283555
+ * Base point: (15112221349535400772501151409588531511454012693041857206046113283949847762202,46316835694926478169428394003475163141307993866256225615783033603165251855960);
+ */
+
+typedef struct ge25519_t {
+	bignum25519 x, y, z, t;
+} ge25519;
+
+typedef struct ge25519_p1p1_t {
+	bignum25519 x, y, z, t;
+} ge25519_p1p1;
+
+typedef struct ge25519_niels_t {
+	bignum25519 ysubx, xaddy, t2d;
+} ge25519_niels;
+
+typedef struct ge25519_pniels_t {
+	bignum25519 ysubx, xaddy, z, t2d;
+} ge25519_pniels;
+
+#include "ed25519-donna-basepoint-table.h"
+
+#if defined(ED25519_64BIT)
+	#include "ed25519-donna-64bit-tables.h"
+	#include "ed25519-donna-64bit-x86.h"
+#else
+	#include "ed25519-donna-32bit-tables.h"
+	#include "ed25519-donna-64bit-x86-32bit.h"
+#endif
+
+
+#if defined(ED25519_SSE2)
+	#include "ed25519-donna-32bit-sse2.h"
+	#include "ed25519-donna-64bit-sse2.h"
+	#include "ed25519-donna-impl-sse2.h"
+#else
+	#include "ed25519-donna-impl-base.h"
+#endif
+

external/ed25519-donna/ed25519-hash-custom.h

@@ -0,0 +1,11 @@
+/*
+	a custom hash must have a 512bit digest and implement:
+
+	struct ed25519_hash_context;
+
+	void ed25519_hash_init(ed25519_hash_context *ctx);
+	void ed25519_hash_update(ed25519_hash_context *ctx, const uint8_t *in, size_t inlen);
+	void ed25519_hash_final(ed25519_hash_context *ctx, uint8_t *hash);
+	void ed25519_hash(uint8_t *hash, const uint8_t *in, size_t inlen);
+*/
+

external/ed25519-donna/ed25519-hash.h

@@ -0,0 +1,219 @@
+#if defined(ED25519_REFHASH)
+
+/* reference/slow SHA-512. really, do not use this */
+
+#define HASH_BLOCK_SIZE 128
+#define HASH_DIGEST_SIZE 64
+
+typedef struct sha512_state_t {
+	uint64_t H[8];
+	uint64_t T[2];
+	uint32_t leftover;
+	uint8_t buffer[HASH_BLOCK_SIZE];
+} sha512_state;
+
+typedef sha512_state ed25519_hash_context;
+
+static const uint64_t sha512_constants[80] = {
+	0x428a2f98d728ae22ull, 0x7137449123ef65cdull, 0xb5c0fbcfec4d3b2full, 0xe9b5dba58189dbbcull,
+	0x3956c25bf348b538ull, 0x59f111f1b605d019ull, 0x923f82a4af194f9bull, 0xab1c5ed5da6d8118ull,
+	0xd807aa98a3030242ull, 0x12835b0145706fbeull, 0x243185be4ee4b28cull, 0x550c7dc3d5ffb4e2ull,
+	0x72be5d74f27b896full, 0x80deb1fe3b1696b1ull, 0x9bdc06a725c71235ull, 0xc19bf174cf692694ull,
+	0xe49b69c19ef14ad2ull, 0xefbe4786384f25e3ull, 0x0fc19dc68b8cd5b5ull, 0x240ca1cc77ac9c65ull,
+	0x2de92c6f592b0275ull, 0x4a7484aa6ea6e483ull, 0x5cb0a9dcbd41fbd4ull, 0x76f988da831153b5ull,
+	0x983e5152ee66dfabull, 0xa831c66d2db43210ull, 0xb00327c898fb213full, 0xbf597fc7beef0ee4ull,
+	0xc6e00bf33da88fc2ull, 0xd5a79147930aa725ull, 0x06ca6351e003826full, 0x142929670a0e6e70ull,
+	0x27b70a8546d22ffcull, 0x2e1b21385c26c926ull, 0x4d2c6dfc5ac42aedull, 0x53380d139d95b3dfull,
+	0x650a73548baf63deull, 0x766a0abb3c77b2a8ull, 0x81c2c92e47edaee6ull, 0x92722c851482353bull,
+	0xa2bfe8a14cf10364ull, 0xa81a664bbc423001ull, 0xc24b8b70d0f89791ull, 0xc76c51a30654be30ull,
+	0xd192e819d6ef5218ull, 0xd69906245565a910ull, 0xf40e35855771202aull, 0x106aa07032bbd1b8ull,
+	0x19a4c116b8d2d0c8ull, 0x1e376c085141ab53ull, 0x2748774cdf8eeb99ull, 0x34b0bcb5e19b48a8ull,
+	0x391c0cb3c5c95a63ull, 0x4ed8aa4ae3418acbull, 0x5b9cca4f7763e373ull, 0x682e6ff3d6b2b8a3ull,
+	0x748f82ee5defb2fcull, 0x78a5636f43172f60ull, 0x84c87814a1f0ab72ull, 0x8cc702081a6439ecull,
+	0x90befffa23631e28ull, 0xa4506cebde82bde9ull, 0xbef9a3f7b2c67915ull, 0xc67178f2e372532bull,
+	0xca273eceea26619cull, 0xd186b8c721c0c207ull, 0xeada7dd6cde0eb1eull, 0xf57d4f7fee6ed178ull,
+	0x06f067aa72176fbaull, 0x0a637dc5a2c898a6ull, 0x113f9804bef90daeull, 0x1b710b35131c471bull,
+	0x28db77f523047d84ull, 0x32caab7b40c72493ull, 0x3c9ebe0a15c9bebcull, 0x431d67c49c100d4cull,
+	0x4cc5d4becb3e42b6ull, 0x597f299cfc657e2aull, 0x5fcb6fab3ad6faecull, 0x6c44198c4a475817ull
+};
+
+static uint64_t
+sha512_ROTR64(uint64_t x, int k) {
+	return (x >> k) | (x << (64 - k));
+}
+
+static uint64_t
+sha512_LOAD64_BE(const uint8_t *p) {
+	return 
+		((uint64_t)p[0] << 56) |
+		((uint64_t)p[1] << 48) |
+		((uint64_t)p[2] << 40) |
+		((uint64_t)p[3] << 32) |
+		((uint64_t)p[4] << 24) |
+		((uint64_t)p[5] << 16) |
+		((uint64_t)p[6] <<  8) |
+		((uint64_t)p[7]      );
+}
+
+static void
+sha512_STORE64_BE(uint8_t *p, uint64_t v) {
+	p[0] = (uint8_t)(v >> 56);
+	p[1] = (uint8_t)(v >> 48);
+	p[2] = (uint8_t)(v >> 40);
+	p[3] = (uint8_t)(v >> 32);
+	p[4] = (uint8_t)(v >> 24);
+	p[5] = (uint8_t)(v >> 16);
+	p[6] = (uint8_t)(v >>  8);
+	p[7] = (uint8_t)(v      );
+}
+
+#define Ch(x,y,z)  (z ^ (x & (y ^ z)))
+#define Maj(x,y,z) (((x | y) & z) | (x & y))
+#define S0(x)      (sha512_ROTR64(x, 28) ^ sha512_ROTR64(x, 34) ^ sha512_ROTR64(x, 39))
+#define S1(x)      (sha512_ROTR64(x, 14) ^ sha512_ROTR64(x, 18) ^ sha512_ROTR64(x, 41))
+#define G0(x)      (sha512_ROTR64(x,  1) ^ sha512_ROTR64(x,  8) ^ (x >>  7))
+#define G1(x)      (sha512_ROTR64(x, 19) ^ sha512_ROTR64(x, 61) ^ (x >>  6))
+#define W0(in,i)   (sha512_LOAD64_BE(&in[i * 8]))
+#define W1(i)      (G1(w[i - 2]) + w[i - 7] + G0(w[i - 15]) + w[i - 16])
+#define STEP(i) \
+	t1 = S0(r[0]) + Maj(r[0], r[1], r[2]); \
+	t0 = r[7] + S1(r[4]) + Ch(r[4], r[5], r[6]) + sha512_constants[i] + w[i]; \
+	r[7] = r[6]; \
+	r[6] = r[5]; \
+	r[5] = r[4]; \
+	r[4] = r[3] + t0; \
+	r[3] = r[2]; \
+	r[2] = r[1]; \
+	r[1] = r[0]; \
+	r[0] = t0 + t1;
+
+static void
+sha512_blocks(sha512_state *S, const uint8_t *in, size_t blocks) {
+	uint64_t r[8], w[80], t0, t1;
+	size_t i;
+
+	for (i = 0; i < 8; i++) r[i] = S->H[i];
+
+	while (blocks--) {
+		for (i =  0; i < 16; i++) { w[i] = W0(in, i); }
+		for (i = 16; i < 80; i++) { w[i] = W1(i); }
+		for (i =  0; i < 80; i++) { STEP(i); }
+		for (i =  0; i <  8; i++) { r[i] += S->H[i]; S->H[i] = r[i]; }
+		S->T[0] += HASH_BLOCK_SIZE * 8;
+		S->T[1] += (!S->T[0]) ? 1 : 0;
+		in += HASH_BLOCK_SIZE;
+	}
+}
+
+static void
+ed25519_hash_init(sha512_state *S) {
+	S->H[0] = 0x6a09e667f3bcc908ull;
+	S->H[1] = 0xbb67ae8584caa73bull;
+	S->H[2] = 0x3c6ef372fe94f82bull;
+	S->H[3] = 0xa54ff53a5f1d36f1ull;
+	S->H[4] = 0x510e527fade682d1ull;
+	S->H[5] = 0x9b05688c2b3e6c1full;
+	S->H[6] = 0x1f83d9abfb41bd6bull;
+	S->H[7] = 0x5be0cd19137e2179ull;
+	S->T[0] = 0;
+	S->T[1] = 0;
+	S->leftover = 0;
+}
+
+static void
+ed25519_hash_update(sha512_state *S, const uint8_t *in, size_t inlen) {
+	size_t blocks, want;
+
+	/* handle the previous data */
+	if (S->leftover) {
+		want = (HASH_BLOCK_SIZE - S->leftover);
+		want = (want < inlen) ? want : inlen;
+		memcpy(S->buffer + S->leftover, in, want);
+		S->leftover += (uint32_t)want;
+		if (S->leftover < HASH_BLOCK_SIZE)
+			return;
+		in += want;
+		inlen -= want;
+		sha512_blocks(S, S->buffer, 1);
+	}
+
+	/* handle the current data */
+	blocks = (inlen & ~(HASH_BLOCK_SIZE - 1));
+	S->leftover = (uint32_t)(inlen - blocks);
+	if (blocks) {
+		sha512_blocks(S, in, blocks / HASH_BLOCK_SIZE);
+		in += blocks;
+	}
+
+	/* handle leftover data */
+	if (S->leftover)
+		memcpy(S->buffer, in, S->leftover);
+}
+
+static void
+ed25519_hash_final(sha512_state *S, uint8_t *hash) {
+	uint64_t t0 = S->T[0] + (S->leftover * 8), t1 = S->T[1];
+
+	S->buffer[S->leftover] = 0x80;
+	if (S->leftover <= 111) {
+		memset(S->buffer + S->leftover + 1, 0, 111 - S->leftover);
+	} else {
+		memset(S->buffer + S->leftover + 1, 0, 127 - S->leftover);
+		sha512_blocks(S, S->buffer, 1);
+		memset(S->buffer, 0, 112);
+	}
+
+	sha512_STORE64_BE(S->buffer + 112, t1);
+	sha512_STORE64_BE(S->buffer + 120, t0);
+	sha512_blocks(S, S->buffer, 1);
+
+	sha512_STORE64_BE(&hash[ 0], S->H[0]);
+	sha512_STORE64_BE(&hash[ 8], S->H[1]);
+	sha512_STORE64_BE(&hash[16], S->H[2]);
+	sha512_STORE64_BE(&hash[24], S->H[3]);
+	sha512_STORE64_BE(&hash[32], S->H[4]);
+	sha512_STORE64_BE(&hash[40], S->H[5]);
+	sha512_STORE64_BE(&hash[48], S->H[6]);
+	sha512_STORE64_BE(&hash[56], S->H[7]);
+}
+
+static void
+ed25519_hash(uint8_t *hash, const uint8_t *in, size_t inlen) {
+	ed25519_hash_context ctx;
+	ed25519_hash_init(&ctx);
+	ed25519_hash_update(&ctx, in, inlen);
+	ed25519_hash_final(&ctx, hash);
+}
+
+#elif defined(ED25519_CUSTOMHASH)
+
+#include "ed25519-hash-custom.h"
+
+#else
+
+#include <openssl/sha.h>
+
+typedef SHA512_CTX ed25519_hash_context;
+
+static void
+ed25519_hash_init(ed25519_hash_context *ctx) {
+	SHA512_Init(ctx);
+}
+
+static void
+ed25519_hash_update(ed25519_hash_context *ctx, const uint8_t *in, size_t inlen) {
+	SHA512_Update(ctx, in, inlen);
+}
+
+static void
+ed25519_hash_final(ed25519_hash_context *ctx, uint8_t *hash) {
+	SHA512_Final(hash, ctx);
+}
+
+static void
+ed25519_hash(uint8_t *hash, const uint8_t *in, size_t inlen) {
+	SHA512(in, inlen, hash);
+}
+
+#endif
+

external/ed25519-donna/ed25519-randombytes-custom.h

@@ -0,0 +1,8 @@
+/*
+	a custom randombytes must implement:
+
+	void ED25519_FN(ed25519_randombytes_unsafe) (void *p, size_t len);
+
+	ed25519_randombytes_unsafe is used by the batch verification function
+	to create random scalars
+*/

external/ed25519-donna/ed25519-randombytes.h

@@ -0,0 +1,91 @@
+#if defined(ED25519_TEST)
+/*
+	ISAAC+ "variant", the paper is not clear on operator precedence and other
+	things. This is the "first in, first out" option!
+
+	Not threadsafe or securely initialized, only for deterministic testing
+*/
+typedef struct isaacp_state_t {
+	uint32_t state[256];
+	unsigned char buffer[1024];
+	uint32_t a, b, c;
+	size_t left;
+} isaacp_state;
+
+#define isaacp_step(offset, mix) \
+	x = mm[i + offset]; \
+	a = (a ^ (mix)) + (mm[(i + offset + 128) & 0xff]); \
+	y = (a ^ b) + mm[(x >> 2) & 0xff]; \
+	mm[i + offset] = y; \
+	b = (x + a) ^ mm[(y >> 10) & 0xff]; \
+	U32TO8_LE(out + (i + offset) * 4, b);
+
+static void
+isaacp_mix(isaacp_state *st) {
+	uint32_t i, x, y;
+	uint32_t a = st->a, b = st->b, c = st->c;
+	uint32_t *mm = st->state;
+	unsigned char *out = st->buffer;
+
+	c = c + 1;
+	b = b + c;
+
+	for (i = 0; i < 256; i += 4) {
+		isaacp_step(0, ROTL32(a,13))
+		isaacp_step(1, ROTR32(a, 6))
+		isaacp_step(2, ROTL32(a, 2))
+		isaacp_step(3, ROTR32(a,16))
+	}
+
+	st->a = a;
+	st->b = b;
+	st->c = c;
+	st->left = 1024;
+}
+
+static void
+isaacp_random(isaacp_state *st, void *p, size_t len) {
+	size_t use;
+	unsigned char *c = (unsigned char *)p;
+	while (len) {
+		use = (len > st->left) ? st->left : len;
+		memcpy(c, st->buffer + (sizeof(st->buffer) - st->left), use);
+
+		st->left -= use;
+		c += use;
+		len -= use;
+
+		if (!st->left)
+			isaacp_mix(st);
+	}
+}
+
+void
+ED25519_FN(ed25519_randombytes_unsafe) (void *p, size_t len) {
+	static int initialized = 0;
+	static isaacp_state rng;
+
+	if (!initialized) {
+		memset(&rng, 0, sizeof(rng));
+		isaacp_mix(&rng);
+		isaacp_mix(&rng);
+		initialized = 1;
+	}
+
+	isaacp_random(&rng, p, len);
+}
+#elif defined(ED25519_CUSTOMRNG)
+
+#include "ed25519-randombytes-custom.h"
+
+#else
+
+#include <openssl/rand.h>
+
+void
+ED25519_FN(ed25519_randombytes_unsafe) (void *p, size_t len) {
+
+  RAND_bytes(p, (int) len);
+
+}
+#endif

external/ed25519-donna/ed25519.c

@@ -0,0 +1,150 @@
+/*
+	Public domain by Andrew M. <liquidsun@gmail.com>
+
+	Ed25519 reference implementation using Ed25519-donna
+*/
+
+
+/* define ED25519_SUFFIX to have it appended to the end of each public function */
+#if !defined(ED25519_SUFFIX)
+#define ED25519_SUFFIX 
+#endif
+
+#define ED25519_FN3(fn,suffix) fn##suffix
+#define ED25519_FN2(fn,suffix) ED25519_FN3(fn,suffix)
+#define ED25519_FN(fn)         ED25519_FN2(fn,ED25519_SUFFIX)
+
+#include "ed25519-donna.h"
+#include "ed25519.h"
+#include "ed25519-randombytes.h"
+#include "ed25519-hash.h"
+
+/*
+	Generates a (extsk[0..31]) and aExt (extsk[32..63])
+*/
+
+DONNA_INLINE static void
+ed25519_extsk(hash_512bits extsk, const ed25519_secret_key sk) {
+	ed25519_hash(extsk, sk, 32);
+	extsk[0] &= 248;
+	extsk[31] &= 127;
+	extsk[31] |= 64;
+}
+
+static void
+ed25519_hram(hash_512bits hram, const ed25519_signature RS, const ed25519_public_key pk, const unsigned char *m, size_t mlen) {
+	ed25519_hash_context ctx;
+	ed25519_hash_init(&ctx);
+	ed25519_hash_update(&ctx, RS, 32);
+	ed25519_hash_update(&ctx, pk, 32);
+	ed25519_hash_update(&ctx, m, mlen);
+	ed25519_hash_final(&ctx, hram);
+}
+
+void
+ED25519_FN(ed25519_publickey) (const ed25519_secret_key sk, ed25519_public_key pk) {
+	bignum256modm a;
+	ge25519 ALIGN(16) A;
+	hash_512bits extsk;
+
+	/* A = aB */
+	ed25519_extsk(extsk, sk);
+	expand256_modm(a, extsk, 32);
+	ge25519_scalarmult_base_niels(&A, ge25519_niels_base_multiples, a);
+	ge25519_pack(pk, &A);
+}
+
+
+void
+ED25519_FN(ed25519_sign) (const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_public_key pk, ed25519_signature RS) {
+	ed25519_hash_context ctx;
+	bignum256modm r, S, a;
+	ge25519 ALIGN(16) R;
+	hash_512bits extsk, hashr, hram;
+
+	ed25519_extsk(extsk, sk);
+
+	/* r = H(aExt[32..64], m) */
+	ed25519_hash_init(&ctx);
+	ed25519_hash_update(&ctx, extsk + 32, 32);
+	ed25519_hash_update(&ctx, m, mlen);
+	ed25519_hash_final(&ctx, hashr);
+	expand256_modm(r, hashr, 64);
+
+	/* R = rB */
+	ge25519_scalarmult_base_niels(&R, ge25519_niels_base_multiples, r);
+	ge25519_pack(RS, &R);
+
+	/* S = H(R,A,m).. */
+	ed25519_hram(hram, RS, pk, m, mlen);
+	expand256_modm(S, hram, 64);
+
+	/* S = H(R,A,m)a */
+	expand256_modm(a, extsk, 32);
+	mul256_modm(S, S, a);
+
+	/* S = (r + H(R,A,m)a) */
+	add256_modm(S, S, r);
+
+	/* S = (r + H(R,A,m)a) mod L */	
+	contract256_modm(RS + 32, S);
+}
+
+int
+ED25519_FN(ed25519_sign_open) (const unsigned char *m, size_t mlen, const ed25519_public_key pk, const ed25519_signature RS) {
+	ge25519 ALIGN(16) R, A;
+	hash_512bits hash;
+	bignum256modm hram, S;
+	unsigned char checkR[32];
+
+	if ((RS[63] & 224) || !ge25519_unpack_negative_vartime(&A, pk))
+		return -1;
+
+	/* hram = H(R,A,m) */
+	ed25519_hram(hash, RS, pk, m, mlen);
+	expand256_modm(hram, hash, 64);
+
+	/* S */
+	expand256_modm(S, RS + 32, 32);
+
+	/* SB - H(R,A,m)A */
+	ge25519_double_scalarmult_vartime(&R, &A, hram, S);
+	ge25519_pack(checkR, &R);
+
+	/* check that R = SB - H(R,A,m)A */
+	return ed25519_verify(RS, checkR, 32) ? 0 : -1;
+}
+
+#include "ed25519-donna-batchverify.h"
+
+/*
+	Fast Curve25519 basepoint scalar multiplication
+*/
+
+void
+ED25519_FN(curved25519_scalarmult_basepoint) (curved25519_key pk, const curved25519_key e) {
+	curved25519_key ec;
+	bignum256modm s;
+	bignum25519 ALIGN(16) yplusz, zminusy;
+	ge25519 ALIGN(16) p;
+	size_t i;
+
+	/* clamp */
+	for (i = 0; i < 32; i++) ec[i] = e[i];
+	ec[0] &= 248;
+	ec[31] &= 127;
+	ec[31] |= 64;
+
+	expand_raw256_modm(s, ec);
+
+	/* scalar * basepoint */
+	ge25519_scalarmult_base_niels(&p, ge25519_niels_base_multiples, s);
+
+	/* u = (y + z) / (z - y) */
+	curve25519_add(yplusz, p.y, p.z);
+	curve25519_sub(zminusy, p.z, p.y);
+	curve25519_recip(zminusy, zminusy);
+	curve25519_mul(yplusz, yplusz, zminusy);
+	curve25519_contract(pk, yplusz);
+}
+

external/ed25519-donna/ed25519.h

@@ -0,0 +1,30 @@
+#ifndef ED25519_H
+#define ED25519_H
+
+#include <stdlib.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+typedef unsigned char ed25519_signature[64];
+typedef unsigned char ed25519_public_key[32];
+typedef unsigned char ed25519_secret_key[32];
+
+typedef unsigned char curved25519_key[32];
+
+void ed25519_publickey(const ed25519_secret_key sk, ed25519_public_key pk);
+int ed25519_sign_open(const unsigned char *m, size_t mlen, const ed25519_public_key pk, const ed25519_signature RS);
+void ed25519_sign(const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_public_key pk, ed25519_signature RS);
+
+int ed25519_sign_open_batch(const unsigned char **m, size_t *mlen, const unsigned char **pk, const unsigned char **RS, size_t num, int *valid);
+
+void ed25519_randombytes_unsafe(void *out, size_t count);
+
+void curved25519_scalarmult_basepoint(curved25519_key pk, const curved25519_key e);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // ED25519_H

external/ed25519-donna/fuzz/README.md

@@ -0,0 +1,173 @@
+This code fuzzes ed25519-donna (and optionally ed25519-donna-sse2) against the ref10 implementations of
+[curve25519](https://github.com/floodyberry/supercop/tree/master/crypto_scalarmult/curve25519/ref10) and 
+[ed25519](https://github.com/floodyberry/supercop/tree/master/crypto_sign/ed25519/ref10).
+
+Curve25519 tests that generating a public key from a secret key
+
+# Building
+
+## *nix + PHP
+
+`php build-nix.php (required parameters) (optional parameters)`
+
+Required parameters:
+
+* `--function=[curve25519,ed25519]`
+* `--bits=[32,64]`
+
+Optional parameters:
+
+* `--with-sse2`
+
+    Also fuzz against ed25519-donna-sse2
+* `--with-openssl`
+
+    Build with OpenSSL's SHA-512.
+
+    Default: Reference SHA-512 implementation (slow!)
+
+* `--compiler=[gcc,clang,icc]`
+
+    Default: gcc
+
+* `--no-asm`
+
+    Do not use platform specific assembler
+
+
+example:
+    
+    php build-nix.php --bits=64 --function=ed25519 --with-sse2 --compiler=icc 
+
+## Windows
+
+Create a project with access to the ed25519 files.
+
+If you are not using OpenSSL, add the `ED25519_REFHASH` define to the projects 
+"Properties/Preprocessor/Preprocessor Definitions" option
+
+Add the following files to the project:
+
+* `fuzz/curve25519-ref10.c`
+* `fuzz/ed25519-ref10.c`
+* `fuzz/ed25519-donna.c`
+* `fuzz/ed25519-donna-sse2.c` (optional)
+* `fuzz-[curve25519/ed25519].c` (depending on which you want to fuzz)
+
+If you are also fuzzing against ed25519-donna-sse2, add the `ED25519_SSE2` define for `fuzz-[curve25519/ed25519].c` under 
+its "Properties/Preprocessor/Preprocessor Definitions" option.
+
+# Running
+
+If everything agrees, the program will only output occasional status dots (every 0x1000 passes) 
+and a 64bit progress count (every 0x20000 passes):
+
+    fuzzing:  ref10 curved25519 curved25519-sse2
+    
+    ................................ [0000000000020000]
+    ................................ [0000000000040000]
+    ................................ [0000000000060000]
+    ................................ [0000000000080000]
+    ................................ [00000000000a0000]
+    ................................ [00000000000c0000]
+ 
+If any of the implementations do not agree with the ref10 implementation, the program will dump
+the random data that was used, the data generated by the ref10 implementation, and diffs of the 
+ed25519-donna data against the ref10 data.
+
+## Example errors
+
+These are example error dumps (with intentionally introduced errors).
+
+### Ed25519
+
+Random data:
+
+* sk, or Secret Key
+* m, or Message
+
+Generated data:
+
+* pk, or Public Key
+* sig, or Signature
+* valid, or if the signature of the message is valid with the public key
+
+Dump:
+
+    sk:
+    0x3b,0xb7,0x17,0x7a,0x66,0xdc,0xb7,0x9a,0x90,0x25,0x07,0x99,0x96,0xf3,0x92,0xef,
+    0x78,0xf8,0xad,0x6c,0x35,0x87,0x81,0x67,0x03,0xe6,0x95,0xba,0x06,0x18,0x7c,0x9c,
+    
+    m:
+    0x7c,0x8d,0x3d,0xe1,0x92,0xee,0x7a,0xb8,0x4d,0xc9,0xfb,0x02,0x34,0x1e,0x5a,0x91,
+    0xee,0x01,0xa6,0xb8,0xab,0x37,0x3f,0x3d,0x6d,0xa2,0x47,0xe3,0x27,0x93,0x7c,0xb7,
+    0x77,0x07,0xb6,0x88,0x41,0x22,0xf3,0x3f,0xce,0xcb,0x6b,0x3e,0x2b,0x23,0x68,0x7f,
+    0x5b,0xb9,0xda,0x04,0xbb,0xae,0x42,0x50,0xf5,0xe9,0xc5,0x11,0xbd,0x52,0x76,0x98,
+    0xf1,0x87,0x09,0xb9,0x89,0x0a,0x52,0x69,0x01,0xce,0xe0,0x4a,0xa6,0x46,0x5a,0xe1,
+    0x63,0x14,0xe0,0x81,0x52,0xec,0xcd,0xcf,0x70,0x54,0x7d,0xa3,0x49,0x8b,0xf0,0x89,
+    0x70,0x07,0x12,0x2a,0xd9,0xaa,0x16,0x01,0xb2,0x16,0x3a,0xbb,0xfc,0xfa,0x13,0x5b,
+    0x69,0x83,0x92,0x70,0x95,0x76,0xa0,0x8e,0x16,0x79,0xcc,0xaa,0xb5,0x7c,0xf8,0x7a,
+    
+    ref10:
+    pk:
+    0x71,0xb0,0x5e,0x62,0x1b,0xe3,0xe7,0x36,0x91,0x8b,0xc0,0x13,0x36,0x0c,0xc9,0x04,
+    0x16,0xf5,0xff,0x48,0x0c,0x83,0x6b,0x88,0x53,0xa2,0xc6,0x0f,0xf7,0xac,0x42,0x04,
+    
+    sig:
+    0x3e,0x05,0xc5,0x37,0x16,0x0b,0x29,0x30,0x89,0xa3,0xe7,0x83,0x08,0x16,0xdd,0x96,
+    0x02,0xfa,0x0d,0x44,0x2c,0x43,0xaa,0x80,0x93,0x04,0x58,0x22,0x09,0xbf,0x11,0xa5,
+    0xcc,0xa5,0x3c,0x9f,0xa0,0xa4,0x64,0x5a,0x4a,0xdb,0x20,0xfb,0xc7,0x9b,0xfd,0x3f,
+    0x08,0xae,0xc4,0x3c,0x1e,0xd8,0xb6,0xb4,0xd2,0x6d,0x80,0x92,0xcb,0x71,0xf3,0x02,
+    
+    valid: yes
+    
+    ed25519-donna:
+    pk diff:
+    ____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,
+    ____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,
+    
+    sig diff:
+    0x2c,0xb9,0x25,0x14,0xd0,0x94,0xeb,0xfe,0x46,0x02,0xc2,0xe8,0xa3,0xeb,0xbf,0xb5,
+    0x72,0x84,0xbf,0xc1,0x8a,0x32,0x30,0x99,0xf7,0x58,0xfe,0x06,0xa8,0xdc,0xdc,0xab,
+    0xb5,0x57,0x03,0x33,0x87,0xce,0x54,0x55,0x6a,0x69,0x8a,0xc4,0xb7,0x2a,0xed,0x97,
+    0xb4,0x68,0xe7,0x52,0x7a,0x07,0x55,0x3b,0xa2,0x94,0xd6,0x5e,0xa1,0x61,0x80,0x08,
+    
+    valid: no
+
+In this case, the generated public key matches, but the generated signature is completely 
+different and does not validate.
+
+### Curve25519
+
+Random data:
+
+* sk, or Secret Key
+
+Generated data:
+
+* pk, or Public Key
+
+Dump:
+
+    sk:
+    0x44,0xec,0x0b,0x0e,0xa2,0x0e,0x9c,0x5b,0x8c,0xce,0x7b,0x1d,0x68,0xae,0x0f,0x9e,
+    0x81,0xe2,0x04,0x76,0xda,0x87,0xa4,0x9e,0xc9,0x4f,0x3b,0xf9,0xc3,0x89,0x63,0x70,
+    
+    
+    ref10:
+    0x24,0x55,0x55,0xc0,0xf9,0x80,0xaf,0x02,0x43,0xee,0x8c,0x7f,0xc1,0xad,0x90,0x95,
+    0x57,0x91,0x14,0x2e,0xf2,0x14,0x22,0x80,0xdd,0x4e,0x3c,0x85,0x71,0x84,0x8c,0x62,
+    
+    
+    curved25519 diff:
+    0x12,0xd1,0x61,0x2b,0x16,0xb3,0xd8,0x29,0xf8,0xa3,0xba,0x70,0x4e,0x49,0x4f,0x43,
+    0xa1,0x3c,0x6b,0x42,0x11,0x61,0xcc,0x30,0x87,0x73,0x46,0xfb,0x85,0xc7,0x9a,0x35,
+    
+    
+    curved25519-sse2 diff:
+    ____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,
+    ____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,____,
+
+
+In this case, curved25519 is totally wrong, while curved25519-sse2 matches the reference 
+implementation.

external/ed25519-donna/fuzz/build-nix.php

@@ -0,0 +1,134 @@
+<?php
+	function echoln($str) {
+		echo $str;
+		echo "\n";
+	}
+
+	function usage($reason) {
+		echoln("Usage: php build-nix.php [flags]");
+		echoln("Flags in parantheses are optional");
+		echoln("");
+		echoln("  --bits=[32,64]");
+		echoln("  --function=[curve25519,ed25519]");
+		echoln(" (--compiler=[*gcc,clang,icc])        which compiler to use, gcc is default");
+		echoln(" (--with-openssl)                     use openssl for SHA512");
+		echoln(" (--with-sse2)                        additionally fuzz against SSE2");
+		echoln(" (--no-asm)                           don't use platform specific asm");
+		echoln("");
+		if ($reason)
+			echoln($reason);
+	}
+
+	function cleanup() {
+		system("rm -f *.o");
+	}
+
+	function runcmd($desc, $cmd) {
+		echoln($desc);
+
+		$ret = 0;
+		system($cmd, $ret);
+		if ($ret) {
+			cleanup();
+			exit;
+		}
+	}
+
+	class argument {
+		var $set, $value;
+	}
+
+	class multiargument extends argument {
+		function multiargument($flag, $legal_values) {
+			global $argc, $argv;
+
+			$this->set = false;
+
+			$map = array();
+			foreach($legal_values as $value)
+				$map[$value] = true;
+
+			for ($i = 1; $i < $argc; $i++) {
+				if (!preg_match("!--".$flag."=(.*)!", $argv[$i], $m))
+					continue;
+				if (isset($map[$m[1]])) {
+					$this->value = $m[1];
+					$this->set = true;
+					return;
+				} else {
+					usage("{$m[1]} is not a valid parameter to --{$flag}!");
+					exit(1);
+				}
+			}
+		}
+	}
+
+	class flag extends argument {
+		function flag($flag) {
+			global $argc, $argv;
+
+			$this->set = false;
+
+			$flag = "--{$flag}";
+			for ($i = 1; $i < $argc; $i++) {
+				if ($argv[$i] !== $flag)
+					continue;
+				$this->value = true;
+				$this->set = true;
+				return;
+			}
+		}
+	}
+
+	$bits = new multiargument("bits", array("32", "64"));
+	$function = new multiargument("function", array("curve25519", "ed25519"));
+	$compiler = new multiargument("compiler", array("gcc", "clang", "icc"));
+	$with_sse2 = new flag("with-sse2");
+	$with_openssl = new flag("with-openssl");
+	$no_asm = new flag("no-asm");
+
+	$err = "";
+	if (!$bits->set)
+		$err .= "--bits not set\n";
+	if (!$function->set)
+		$err .= "--function not set\n";
+
+	if ($err !== "") {
+		usage($err);
+		exit;
+	}
+
+	$compile = ($compiler->set) ? $compiler->value : "gcc";
+	$link = "";
+	$flags = "-O3 -m{$bits->value}";
+	$ret = 0;
+
+	if ($with_openssl->set) $link .= " -lssl -lcrypto";
+	if (!$with_openssl->set) $flags .= " -DED25519_REFHASH -DED25519_TEST";
+	if ($no_asm->set) $flags .= " -DED25519_NO_INLINE_ASM";
+
+	if ($function->value === "curve25519") {
+		runcmd("building ref10..", "{$compile} {$flags} curve25519-ref10.c -c -o curve25519-ref10.o");
+		runcmd("building ed25519..", "{$compile} {$flags} ed25519-donna.c -c -o ed25519.o");
+		if ($with_sse2->set) {
+			runcmd("building ed25519-sse2..", "{$compile} {$flags} ed25519-donna-sse2.c -c -o ed25519-sse2.o -msse2");
+			$flags .= " -DED25519_SSE2";
+			$link .= " ed25519-sse2.o";
+		}
+		runcmd("linking..", "{$compile} {$flags} {$link} fuzz-curve25519.c ed25519.o curve25519-ref10.o -o fuzz-curve25519");
+		echoln("fuzz-curve25519 built.");
+	} else 	if ($function->value === "ed25519") {
+		runcmd("building ref10..", "{$compile} {$flags} ed25519-ref10.c -c -o ed25519-ref10.o");
+		runcmd("building ed25519..", "{$compile} {$flags} ed25519-donna.c -c -o ed25519.o");
+		if ($with_sse2->set) {
+			runcmd("building ed25519-sse2..", "{$compile} {$flags} ed25519-donna-sse2.c -c -o ed25519-sse2.o -msse2");
+			$flags .= " -DED25519_SSE2";
+			$link .= " ed25519-sse2.o";
+		}
+		runcmd("linking..", "{$compile} {$flags} {$link} fuzz-ed25519.c ed25519.o ed25519-ref10.o -o fuzz-ed25519");
+		echoln("fuzz-ed25519 built.");
+	}
+
+
+	cleanup();
+?>

external/ed25519-donna/fuzz/curve25519-ref10.h

@@ -0,0 +1,8 @@
+#ifndef CURVE25519_REF10_H
+#define CURVE25519_REF10_H
+
+int crypto_scalarmult_base_ref10(unsigned char *q,const unsigned char *n);
+int crypto_scalarmult_ref10(unsigned char *q, const unsigned char *n, const unsigned char *p);
+
+#endif /* CURVE25519_REF10_H */
+

external/ed25519-donna/fuzz/ed25519-donna-sse2.c

@@ -0,0 +1,3 @@
+#define ED25519_SUFFIX _sse2
+#define ED25519_SSE2
+#include "../ed25519.c"

external/ed25519-donna/fuzz/ed25519-donna.c

@@ -0,0 +1 @@
+#include "../ed25519.c"

external/ed25519-donna/fuzz/ed25519-donna.h

@@ -0,0 +1,34 @@
+#ifndef ED25519_H
+#define ED25519_H
+
+#include <stdlib.h>
+
+typedef unsigned char ed25519_signature[64];
+typedef unsigned char ed25519_public_key[32];
+typedef unsigned char ed25519_secret_key[32];
+
+typedef unsigned char curved25519_key[32];
+
+void ed25519_publickey(const ed25519_secret_key sk, ed25519_public_key pk);
+int ed25519_sign_open(const unsigned char *m, size_t mlen, const ed25519_public_key pk, const ed25519_signature RS);
+void ed25519_sign(const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_public_key pk, ed25519_signature RS);
+
+int ed25519_sign_open_batch(const unsigned char **m, size_t *mlen, const unsigned char **pk, const unsigned char **RS, size_t num, int *valid);
+
+void ed25519_randombytes_unsafe(void *out, size_t count);
+
+void curved25519_scalarmult_basepoint(curved25519_key pk, const curved25519_key e);
+
+#if defined(ED25519_SSE2)
+void ed25519_publickey_sse2(const ed25519_secret_key sk, ed25519_public_key pk);
+int ed25519_sign_open_sse2(const unsigned char *m, size_t mlen, const ed25519_public_key pk, const ed25519_signature RS);
+void ed25519_sign_sse2(const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_public_key pk, ed25519_signature RS);
+
+int ed25519_sign_open_batch_sse2(const unsigned char **m, size_t *mlen, const unsigned char **pk, const unsigned char **RS, size_t num, int *valid);
+
+void ed25519_randombytes_unsafe_sse2(void *out, size_t count);
+
+void curved25519_scalarmult_basepoint_sse2(curved25519_key pk, const curved25519_key e);
+#endif
+
+#endif // ED25519_H

external/ed25519-donna/fuzz/ed25519-ref10.h

@@ -0,0 +1,9 @@
+#ifndef ED25519_REF10_H
+#define ED25519_REF10_H
+
+int crypto_sign_pk_ref10(unsigned char *pk,unsigned char *sk);
+int crypto_sign_ref10(unsigned char *sm,unsigned long long *smlen,const unsigned char *m,unsigned long long mlen,const unsigned char *sk);
+int crypto_sign_open_ref10(unsigned char *m,unsigned long long *mlen,const unsigned char *sm,unsigned long long smlen,const unsigned char *pk);
+
+#endif /* ED25519_REF10_H */
+

external/ed25519-donna/fuzz/fuzz-curve25519.c

@@ -0,0 +1,172 @@
+#if defined(_WIN32)
+	#include <windows.h>
+	#include <wincrypt.h>
+	typedef unsigned int uint32_t;
+	typedef unsigned __int64 uint64_t;
+#else
+	#include <stdint.h>
+#endif
+
+#include <string.h>
+#include <stdio.h>
+
+#include "ed25519-donna.h"
+#include "curve25519-ref10.h"
+
+static void
+print_diff(const char *desc, const unsigned char *a, const unsigned char *b, size_t len) {
+	size_t p = 0;
+	unsigned char diff;
+	printf("%s diff:\n", desc);
+	while (len--) {
+		diff = *a++ ^ *b++;
+		if (!diff)
+			printf("____,");
+		else
+			printf("0x%02x,", diff);
+		if ((++p & 15) == 0)
+			printf("\n");
+	}
+	printf("\n\n");
+}
+
+static void
+print_bytes(const char *desc, const unsigned char *bytes, size_t len) {
+	size_t p = 0;
+	printf("%s:\n", desc);
+	while (len--) {
+		printf("0x%02x,", *bytes++);
+		if ((++p & 15) == 0)
+			printf("\n");
+	}
+	printf("\n\n");
+}
+
+
+/* chacha20/12 prng */
+void
+prng(unsigned char *out, size_t bytes) {
+	static uint32_t state[16];
+	static int init = 0;
+	uint32_t x[16], t;
+	size_t i;
+
+	if (!init) {
+	#if defined(_WIN32)
+		HCRYPTPROV csp;
+		if (!CryptAcquireContext(&csp, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+			printf("CryptAcquireContext failed\n");
+			exit(1);
+		}
+		if (!CryptGenRandom(csp, (DWORD)sizeof(state), (BYTE*)state)) {
+			printf("CryptGenRandom failed\n");
+			exit(1);
+		}
+		CryptReleaseContext(csp, 0);
+	#else
+		FILE *f = NULL;
+		f = fopen("/dev/urandom", "rb");
+		if (!f) {
+			printf("failed to open /dev/urandom\n");
+			exit(1);
+		}
+		if (fread(state, sizeof(state), 1, f) != 1) {
+			printf("read error on /dev/urandom\n");
+			exit(1);
+		}
+	#endif
+		init = 1;
+	}
+
+	while (bytes) {
+		for (i = 0; i < 16; i++) x[i] = state[i];
+
+		#define rotl32(x,k) ((x << k) | (x >> (32 - k)))
+		#define quarter(a,b,c,d) \
+			x[a] += x[b]; t = x[d]^x[a]; x[d] = rotl32(t,16); \
+			x[c] += x[d]; t = x[b]^x[c]; x[b] = rotl32(t,12); \
+			x[a] += x[b]; t = x[d]^x[a]; x[d] = rotl32(t, 8); \
+			x[c] += x[d]; t = x[b]^x[c]; x[b] = rotl32(t, 7);
+
+		for (i = 0; i < 12; i += 2) {
+			quarter( 0, 4, 8,12)
+			quarter( 1, 5, 9,13)
+			quarter( 2, 6,10,14)
+			quarter( 3, 7,11,15)
+			quarter( 0, 5,10,15)
+			quarter( 1, 6,11,12)
+			quarter( 2, 7, 8,13)
+			quarter( 3, 4, 9,14)
+		};
+
+		if (bytes <= 64) {
+			memcpy(out, x, bytes);
+			bytes = 0;
+		} else {
+			memcpy(out, x, 64);
+			bytes -= 64;
+			out += 64;
+		}
+
+		/* don't need a nonce, so last 4 words are the counter. 2^136 bytes can be generated */
+		if (!++state[12]) if (!++state[13]) if (!++state[14]) ++state[15];
+	}
+}
+
+
+
+int main() {
+	const size_t skmax = 1024;
+	static unsigned char sk[1024][32];
+	unsigned char pk[3][32];
+	unsigned char *skp;
+	size_t ski, pki, i;
+	uint64_t ctr;
+
+	printf("fuzzing: ");
+	printf(" ref10");
+	printf(" curved25519");
+#if defined(ED25519_SSE2)
+	printf(" curved25519-sse2");
+#endif
+	printf("\n\n");
+
+	for (ctr = 0, ski = skmax;;ctr++) {
+		if (ski == skmax) {
+			prng((unsigned char *)sk, sizeof(sk));
+			ski = 0;
+		}
+		skp = sk[ski++];
+
+		pki = 0;
+		crypto_scalarmult_base_ref10(pk[pki++], skp);
+		curved25519_scalarmult_basepoint(pk[pki++],  skp);
+		#if defined(ED25519_SSE2)
+			curved25519_scalarmult_basepoint_sse2(pk[pki++], skp);
+		#endif
+
+		for (i = 1; i < pki; i++) {
+			if (memcmp(pk[0], pk[i], 32) != 0) {
+				printf("\n\n");
+				print_bytes("sk",  skp, 32);
+				print_bytes("ref10", pk[0], 32);
+				print_diff("curved25519", pk[0], pk[1], 32);
+				#if defined(ED25519_SSE2)
+					print_diff("curved25519-sse2", pk[0], pk[2], 32);
+				#endif
+				exit(1);
+			}
+		}
+
+		if (ctr && (ctr % 0x1000 == 0)) {
+			printf(".");
+			if ((ctr % 0x20000) == 0) {
+				printf(" [");
+				for (i = 0; i < 8; i++)
+					printf("%02x", (unsigned char)(ctr >> ((7 - i) * 8)));
+				printf("]\n");
+			}
+		}
+	}
+}
+

external/ed25519-donna/fuzz/fuzz-ed25519.c

@@ -0,0 +1,219 @@
+#if defined(_WIN32)
+	#include <windows.h>
+	#include <wincrypt.h>
+	typedef unsigned int uint32_t;
+#else
+	#include <stdint.h>
+#endif
+
+#include <string.h>
+#include <stdio.h>
+
+#include "ed25519-donna.h"
+#include "ed25519-ref10.h"
+
+static void
+print_diff(const char *desc, const unsigned char *a, const unsigned char *b, size_t len) {
+	size_t p = 0;
+	unsigned char diff;
+	printf("%s diff:\n", desc);
+	while (len--) {
+		diff = *a++ ^ *b++;
+		if (!diff)
+			printf("____,");
+		else
+			printf("0x%02x,", diff);
+		if ((++p & 15) == 0)
+			printf("\n");
+	}
+	printf("\n");
+}
+
+static void
+print_bytes(const char *desc, const unsigned char *bytes, size_t len) {
+	size_t p = 0;
+	printf("%s:\n", desc);
+	while (len--) {
+		printf("0x%02x,", *bytes++);
+		if ((++p & 15) == 0)
+			printf("\n");
+	}
+	printf("\n");
+}
+
+
+/* chacha20/12 prng */
+void
+prng(unsigned char *out, size_t bytes) {
+	static uint32_t state[16];
+	static int init = 0;
+	uint32_t x[16], t;
+	size_t i;
+
+	if (!init) {
+	#if defined(_WIN32)
+		HCRYPTPROV csp = NULL;
+		if (!CryptAcquireContext(&csp, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
+			printf("CryptAcquireContext failed\n");
+			exit(1);
+		}
+		if (!CryptGenRandom(csp, (DWORD)sizeof(state), (BYTE*)state)) {
+			printf("CryptGenRandom failed\n");
+			exit(1);
+		}
+		CryptReleaseContext(csp, 0);
+	#else
+		FILE *f = NULL;
+		f = fopen("/dev/urandom", "rb");
+		if (!f) {
+			printf("failed to open /dev/urandom\n");
+			exit(1);
+		}
+		if (fread(state, sizeof(state), 1, f) != 1) {
+			printf("read error on /dev/urandom\n");
+			exit(1);
+		}
+	#endif
+		init = 1;
+	}
+
+	while (bytes) {
+		for (i = 0; i < 16; i++) x[i] = state[i];
+
+		#define rotl32(x,k) ((x << k) | (x >> (32 - k)))
+		#define quarter(a,b,c,d) \
+			x[a] += x[b]; t = x[d]^x[a]; x[d] = rotl32(t,16); \
+			x[c] += x[d]; t = x[b]^x[c]; x[b] = rotl32(t,12); \
+			x[a] += x[b]; t = x[d]^x[a]; x[d] = rotl32(t, 8); \
+			x[c] += x[d]; t = x[b]^x[c]; x[b] = rotl32(t, 7);
+
+		for (i = 0; i < 12; i += 2) {
+			quarter( 0, 4, 8,12)
+			quarter( 1, 5, 9,13)
+			quarter( 2, 6,10,14)
+			quarter( 3, 7,11,15)
+			quarter( 0, 5,10,15)
+			quarter( 1, 6,11,12)
+			quarter( 2, 7, 8,13)
+			quarter( 3, 4, 9,14)
+		};
+
+		if (bytes <= 64) {
+			memcpy(out, x, bytes);
+			bytes = 0;
+		} else {
+			memcpy(out, x, 64);
+			bytes -= 64;
+			out += 64;
+		}
+
+		/* don't need a nonce, so last 4 words are the counter. 2^136 bytes can be generated */
+		if (!++state[12]) if (!++state[13]) if (!++state[14]) ++state[15];
+	}
+}
+
+typedef struct random_data_t {
+	unsigned char sk[32];
+	unsigned char m[128];
+} random_data;
+
+typedef struct generated_data_t {
+	unsigned char pk[32];
+	unsigned char sig[64];
+	int valid;
+} generated_data;
+
+static void
+print_generated(const char *desc, generated_data *g) {
+	printf("%s:\n", desc);
+	print_bytes("pk", g->pk, 32);
+	print_bytes("sig", g->sig, 64);
+	printf("valid: %s\n\n", g->valid ? "no" : "yes");
+}
+
+static void
+print_generated_diff(const char *desc, const generated_data *base, generated_data *g) {
+	printf("%s:\n", desc);
+	print_diff("pk", base->pk, g->pk, 32);
+	print_diff("sig", base->sig, g->sig, 64);
+	printf("valid: %s\n\n", (base->valid == g->valid) ? "___" : (g->valid ? "no" : "yes"));
+}
+
+int main() {
+	const size_t rndmax = 128;
+	static random_data rnd[128];
+	static generated_data gen[3];
+	random_data *r;
+	generated_data *g;
+	unsigned long long dummylen;
+	unsigned char dummysk[64];
+	unsigned char dummymsg[2][128+64];
+	size_t rndi, geni, i, j;
+	uint64_t ctr;
+
+	printf("fuzzing: ");
+	printf(" ref10");
+	printf(" ed25519-donna");
+#if defined(ED25519_SSE2)
+	printf(" ed25519-donna-sse2");
+#endif
+	printf("\n\n");
+
+	for (ctr = 0, rndi = rndmax;;ctr++) {
+		if (rndi == rndmax) {
+			prng((unsigned char *)rnd, sizeof(rnd));
+			rndi = 0;
+		}
+		r = &rnd[rndi++];
+
+		/* ref10, lots of horrible gymnastics to work around the wonky api */
+		geni = 0;
+		g = &gen[geni++];
+		memcpy(dummysk, r->sk, 32); /* pk is appended to the sk, need to copy the sk to a larger buffer */
+		crypto_sign_pk_ref10(dummysk + 32, dummysk);
+		memcpy(g->pk, dummysk + 32, 32); 
+		crypto_sign_ref10(dummymsg[0], &dummylen, r->m, 128, dummysk);
+		memcpy(g->sig, dummymsg[0], 64); /* sig is placed in front of the signed message */
+		g->valid = crypto_sign_open_ref10(dummymsg[1], &dummylen, dummymsg[0], 128 + 64, g->pk);
+
+		/* ed25519-donna */
+		g = &gen[geni++];
+		ed25519_publickey(r->sk, g->pk);
+		ed25519_sign(r->m, 128, r->sk, g->pk, g->sig);
+		g->valid = ed25519_sign_open(r->m, 128, g->pk, g->sig);
+
+		#if defined(ED25519_SSE2)
+			/* ed25519-donna-sse2 */
+			g = &gen[geni++];
+			ed25519_publickey_sse2(r->sk, g->pk);
+			ed25519_sign_sse2(r->m, 128, r->sk, g->pk, g->sig);
+			g->valid = ed25519_sign_open_sse2(r->m, 128, g->pk, g->sig);
+		#endif
+
+		/* compare implementations 1..geni against the reference */
+		for (i = 1; i < geni; i++) {
+			if (memcmp(&gen[0], &gen[i], sizeof(generated_data)) != 0) {
+				printf("\n\n");
+				print_bytes("sk", r->sk, 32);
+				print_bytes("m", r->m, 128);
+				print_generated("ref10", &gen[0]);
+				print_generated_diff("ed25519-donna", &gen[0], &gen[1]);
+				#if defined(ED25519_SSE2)
+					print_generated_diff("ed25519-donna-sse2", &gen[0], &gen[2]);
+				#endif
+				exit(1);
+			}
+		}
+
+		/* print out status */
+		if (ctr && (ctr % 0x1000 == 0)) {
+			printf(".");
+			if ((ctr % 0x20000) == 0) {
+				printf(" [");
+				for (i = 0; i < 8; i++)
+					printf("%02x", (unsigned char)(ctr >> ((7 - i) * 8)));
+				printf("]\n");
+			}
+		}
+	}
+}

external/ed25519-donna/modm-donna-32bit.h

@@ -0,0 +1,469 @@
+/*
+	Public domain by Andrew M. <liquidsun@gmail.com>
+*/
+
+
+/*
+	Arithmetic modulo the group order n = 2^252 +  27742317777372353535851937790883648493 = 7237005577332262213973186563042994240857116359379907606001950938285454250989
+
+	k = 32
+	b = 1 << 8 = 256
+	m = 2^252 + 27742317777372353535851937790883648493 = 0x1000000000000000000000000000000014def9dea2f79cd65812631a5cf5d3ed
+	mu = floor( b^(k*2) / m ) = 0xfffffffffffffffffffffffffffffffeb2106215d086329a7ed9ce5a30a2c131b
+*/
+
+#define bignum256modm_bits_per_limb 30
+#define bignum256modm_limb_size 9
+
+typedef uint32_t bignum256modm_element_t;
+typedef bignum256modm_element_t bignum256modm[9];
+
+static const bignum256modm modm_m = {
+	0x1cf5d3ed, 0x20498c69, 0x2f79cd65, 0x37be77a8,
+	0x00000014,	0x00000000, 0x00000000,	0x00000000,
+	0x00001000
+};
+
+static const bignum256modm modm_mu = {
+	0x0a2c131b, 0x3673968c, 0x06329a7e, 0x01885742,
+	0x3fffeb21, 0x3fffffff, 0x3fffffff, 0x3fffffff,
+	0x000fffff
+};
+
+static bignum256modm_element_t
+lt_modm(bignum256modm_element_t a, bignum256modm_element_t b) {
+	return (a - b) >> 31;
+}
+
+/* see HAC, Alg. 14.42 Step 4 */
+static void
+reduce256_modm(bignum256modm r) {
+	bignum256modm t;
+	bignum256modm_element_t b = 0, pb, mask;
+
+	/* t = r - m */
+	pb = 0;
+	pb += modm_m[0]; b = lt_modm(r[0], pb); t[0] = (r[0] - pb + (b << 30)); pb = b;
+	pb += modm_m[1]; b = lt_modm(r[1], pb); t[1] = (r[1] - pb + (b << 30)); pb = b;
+	pb += modm_m[2]; b = lt_modm(r[2], pb); t[2] = (r[2] - pb + (b << 30)); pb = b;
+	pb += modm_m[3]; b = lt_modm(r[3], pb); t[3] = (r[3] - pb + (b << 30)); pb = b;
+	pb += modm_m[4]; b = lt_modm(r[4], pb); t[4] = (r[4] - pb + (b << 30)); pb = b;
+	pb += modm_m[5]; b = lt_modm(r[5], pb); t[5] = (r[5] - pb + (b << 30)); pb = b;
+	pb += modm_m[6]; b = lt_modm(r[6], pb); t[6] = (r[6] - pb + (b << 30)); pb = b;
+	pb += modm_m[7]; b = lt_modm(r[7], pb); t[7] = (r[7] - pb + (b << 30)); pb = b;
+	pb += modm_m[8]; b = lt_modm(r[8], pb); t[8] = (r[8] - pb + (b << 16));
+
+	/* keep r if r was smaller than m */
+	mask = b - 1;
+	r[0] ^= mask & (r[0] ^ t[0]);
+	r[1] ^= mask & (r[1] ^ t[1]);
+	r[2] ^= mask & (r[2] ^ t[2]);
+	r[3] ^= mask & (r[3] ^ t[3]);
+	r[4] ^= mask & (r[4] ^ t[4]);
+	r[5] ^= mask & (r[5] ^ t[5]);
+	r[6] ^= mask & (r[6] ^ t[6]);
+	r[7] ^= mask & (r[7] ^ t[7]);
+	r[8] ^= mask & (r[8] ^ t[8]);
+}
+
+/*
+	Barrett reduction,  see HAC, Alg. 14.42
+
+	Instead of passing in x, pre-process in to q1 and r1 for efficiency
+*/
+static void
+barrett_reduce256_modm(bignum256modm r, const bignum256modm q1, const bignum256modm r1) {
+	bignum256modm q3, r2;
+	uint64_t c;
+	bignum256modm_element_t f, b, pb;
+
+	/* q1 = x >> 248 = 264 bits = 9 30 bit elements
+	   q2 = mu * q1
+	   q3 = (q2 / 256(32+1)) = q2 / (2^8)^(32+1) = q2 >> 264 */
+	c  = mul32x32_64(modm_mu[0], q1[7]) + mul32x32_64(modm_mu[1], q1[6]) + mul32x32_64(modm_mu[2], q1[5]) + mul32x32_64(modm_mu[3], q1[4]) + mul32x32_64(modm_mu[4], q1[3]) + mul32x32_64(modm_mu[5], q1[2]) + mul32x32_64(modm_mu[6], q1[1]) + mul32x32_64(modm_mu[7], q1[0]); 
+	c >>= 30;
+	c += mul32x32_64(modm_mu[0], q1[8]) + mul32x32_64(modm_mu[1], q1[7]) + mul32x32_64(modm_mu[2], q1[6]) + mul32x32_64(modm_mu[3], q1[5]) + mul32x32_64(modm_mu[4], q1[4]) + mul32x32_64(modm_mu[5], q1[3]) + mul32x32_64(modm_mu[6], q1[2]) + mul32x32_64(modm_mu[7], q1[1]) + mul32x32_64(modm_mu[8], q1[0]);
+	f = (bignum256modm_element_t)c; q3[0] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[1], q1[8]) + mul32x32_64(modm_mu[2], q1[7]) + mul32x32_64(modm_mu[3], q1[6]) + mul32x32_64(modm_mu[4], q1[5]) + mul32x32_64(modm_mu[5], q1[4]) + mul32x32_64(modm_mu[6], q1[3]) + mul32x32_64(modm_mu[7], q1[2]) + mul32x32_64(modm_mu[8], q1[1]);
+	f = (bignum256modm_element_t)c; q3[0] |= (f << 6) & 0x3fffffff; q3[1] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[2], q1[8]) + mul32x32_64(modm_mu[3], q1[7]) + mul32x32_64(modm_mu[4], q1[6]) + mul32x32_64(modm_mu[5], q1[5]) + mul32x32_64(modm_mu[6], q1[4]) + mul32x32_64(modm_mu[7], q1[3]) + mul32x32_64(modm_mu[8], q1[2]);
+	f = (bignum256modm_element_t)c; q3[1] |= (f << 6) & 0x3fffffff; q3[2] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[3], q1[8]) + mul32x32_64(modm_mu[4], q1[7]) + mul32x32_64(modm_mu[5], q1[6]) + mul32x32_64(modm_mu[6], q1[5]) + mul32x32_64(modm_mu[7], q1[4]) + mul32x32_64(modm_mu[8], q1[3]);
+	f = (bignum256modm_element_t)c; q3[2] |= (f << 6) & 0x3fffffff; q3[3] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[4], q1[8]) + mul32x32_64(modm_mu[5], q1[7]) + mul32x32_64(modm_mu[6], q1[6]) + mul32x32_64(modm_mu[7], q1[5]) + mul32x32_64(modm_mu[8], q1[4]);
+	f = (bignum256modm_element_t)c; q3[3] |= (f << 6) & 0x3fffffff; q3[4] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[5], q1[8]) + mul32x32_64(modm_mu[6], q1[7]) + mul32x32_64(modm_mu[7], q1[6]) + mul32x32_64(modm_mu[8], q1[5]);
+	f = (bignum256modm_element_t)c; q3[4] |= (f << 6) & 0x3fffffff; q3[5] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[6], q1[8]) + mul32x32_64(modm_mu[7], q1[7]) + mul32x32_64(modm_mu[8], q1[6]);
+	f = (bignum256modm_element_t)c; q3[5] |= (f << 6) & 0x3fffffff; q3[6] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[7], q1[8]) + mul32x32_64(modm_mu[8], q1[7]);
+	f = (bignum256modm_element_t)c; q3[6] |= (f << 6) & 0x3fffffff; q3[7] = (f >> 24) & 0x3f; c >>= 30;
+	c += mul32x32_64(modm_mu[8], q1[8]);
+	f = (bignum256modm_element_t)c; q3[7] |= (f << 6) & 0x3fffffff; q3[8] = (bignum256modm_element_t)(c >> 24);
+
+	/* r1 = (x mod 256^(32+1)) = x mod (2^8)(31+1) = x & ((1 << 264) - 1)
+	   r2 = (q3 * m) mod (256^(32+1)) = (q3 * m) & ((1 << 264) - 1) */
+	c = mul32x32_64(modm_m[0], q3[0]);
+	r2[0] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[1]) + mul32x32_64(modm_m[1], q3[0]);
+	r2[1] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[2]) + mul32x32_64(modm_m[1], q3[1]) + mul32x32_64(modm_m[2], q3[0]);
+	r2[2] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[3]) + mul32x32_64(modm_m[1], q3[2]) + mul32x32_64(modm_m[2], q3[1]) + mul32x32_64(modm_m[3], q3[0]);
+	r2[3] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[4]) + mul32x32_64(modm_m[1], q3[3]) + mul32x32_64(modm_m[2], q3[2]) + mul32x32_64(modm_m[3], q3[1]) + mul32x32_64(modm_m[4], q3[0]);
+	r2[4] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[5]) + mul32x32_64(modm_m[1], q3[4]) + mul32x32_64(modm_m[2], q3[3]) + mul32x32_64(modm_m[3], q3[2]) + mul32x32_64(modm_m[4], q3[1]) + mul32x32_64(modm_m[5], q3[0]);
+	r2[5] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[6]) + mul32x32_64(modm_m[1], q3[5]) + mul32x32_64(modm_m[2], q3[4]) + mul32x32_64(modm_m[3], q3[3]) + mul32x32_64(modm_m[4], q3[2]) + mul32x32_64(modm_m[5], q3[1]) + mul32x32_64(modm_m[6], q3[0]);
+	r2[6] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[7]) + mul32x32_64(modm_m[1], q3[6]) + mul32x32_64(modm_m[2], q3[5]) + mul32x32_64(modm_m[3], q3[4]) + mul32x32_64(modm_m[4], q3[3]) + mul32x32_64(modm_m[5], q3[2]) + mul32x32_64(modm_m[6], q3[1]) + mul32x32_64(modm_m[7], q3[0]);
+	r2[7] = (bignum256modm_element_t)(c & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(modm_m[0], q3[8]) + mul32x32_64(modm_m[1], q3[7]) + mul32x32_64(modm_m[2], q3[6]) + mul32x32_64(modm_m[3], q3[5]) + mul32x32_64(modm_m[4], q3[4]) + mul32x32_64(modm_m[5], q3[3]) + mul32x32_64(modm_m[6], q3[2]) + mul32x32_64(modm_m[7], q3[1]) + mul32x32_64(modm_m[8], q3[0]);
+	r2[8] = (bignum256modm_element_t)(c & 0xffffff);
+
+	/* r = r1 - r2
+	   if (r < 0) r += (1 << 264) */
+	pb = 0;
+	pb += r2[0]; b = lt_modm(r1[0], pb); r[0] = (r1[0] - pb + (b << 30)); pb = b;
+	pb += r2[1]; b = lt_modm(r1[1], pb); r[1] = (r1[1] - pb + (b << 30)); pb = b;
+	pb += r2[2]; b = lt_modm(r1[2], pb); r[2] = (r1[2] - pb + (b << 30)); pb = b;
+	pb += r2[3]; b = lt_modm(r1[3], pb); r[3] = (r1[3] - pb + (b << 30)); pb = b;
+	pb += r2[4]; b = lt_modm(r1[4], pb); r[4] = (r1[4] - pb + (b << 30)); pb = b;
+	pb += r2[5]; b = lt_modm(r1[5], pb); r[5] = (r1[5] - pb + (b << 30)); pb = b;
+	pb += r2[6]; b = lt_modm(r1[6], pb); r[6] = (r1[6] - pb + (b << 30)); pb = b;
+	pb += r2[7]; b = lt_modm(r1[7], pb); r[7] = (r1[7] - pb + (b << 30)); pb = b;
+	pb += r2[8]; b = lt_modm(r1[8], pb); r[8] = (r1[8] - pb + (b << 24));
+
+	reduce256_modm(r);
+	reduce256_modm(r);
+}
+
+/* addition modulo m */
+static void
+add256_modm(bignum256modm r, const bignum256modm x, const bignum256modm y) {
+	bignum256modm_element_t c;
+
+	c  = x[0] + y[0]; r[0] = c & 0x3fffffff; c >>= 30;
+	c += x[1] + y[1]; r[1] = c & 0x3fffffff; c >>= 30;
+	c += x[2] + y[2]; r[2] = c & 0x3fffffff; c >>= 30;
+	c += x[3] + y[3]; r[3] = c & 0x3fffffff; c >>= 30;
+	c += x[4] + y[4]; r[4] = c & 0x3fffffff; c >>= 30;
+	c += x[5] + y[5]; r[5] = c & 0x3fffffff; c >>= 30;
+	c += x[6] + y[6]; r[6] = c & 0x3fffffff; c >>= 30;
+	c += x[7] + y[7]; r[7] = c & 0x3fffffff; c >>= 30;
+	c += x[8] + y[8]; r[8] = c;
+
+	reduce256_modm(r);
+}
+
+/* multiplication modulo m */
+static void 
+mul256_modm(bignum256modm r, const bignum256modm x, const bignum256modm y) {
+	bignum256modm r1, q1;
+	uint64_t c;
+	bignum256modm_element_t f;
+
+	/* r1 = (x mod 256^(32+1)) = x mod (2^8)(31+1) = x & ((1 << 264) - 1)
+	   q1 = x >> 248 = 264 bits = 9 30 bit elements */
+	c = mul32x32_64(x[0], y[0]);
+	f = (bignum256modm_element_t)c; r1[0] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[1]) + mul32x32_64(x[1], y[0]);
+	f = (bignum256modm_element_t)c; r1[1] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[2]) + mul32x32_64(x[1], y[1]) + mul32x32_64(x[2], y[0]);
+	f = (bignum256modm_element_t)c; r1[2] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[3]) + mul32x32_64(x[1], y[2]) + mul32x32_64(x[2], y[1]) + mul32x32_64(x[3], y[0]);
+	f = (bignum256modm_element_t)c; r1[3] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[4]) + mul32x32_64(x[1], y[3]) + mul32x32_64(x[2], y[2]) + mul32x32_64(x[3], y[1]) + mul32x32_64(x[4], y[0]);
+	f = (bignum256modm_element_t)c; r1[4] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[5]) + mul32x32_64(x[1], y[4]) + mul32x32_64(x[2], y[3]) + mul32x32_64(x[3], y[2]) + mul32x32_64(x[4], y[1]) + mul32x32_64(x[5], y[0]);
+	f = (bignum256modm_element_t)c; r1[5] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[6]) + mul32x32_64(x[1], y[5]) + mul32x32_64(x[2], y[4]) + mul32x32_64(x[3], y[3]) + mul32x32_64(x[4], y[2]) + mul32x32_64(x[5], y[1]) + mul32x32_64(x[6], y[0]);
+	f = (bignum256modm_element_t)c; r1[6] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[7]) + mul32x32_64(x[1], y[6]) + mul32x32_64(x[2], y[5]) + mul32x32_64(x[3], y[4]) + mul32x32_64(x[4], y[3]) + mul32x32_64(x[5], y[2]) + mul32x32_64(x[6], y[1]) + mul32x32_64(x[7], y[0]);
+	f = (bignum256modm_element_t)c; r1[7] = (f & 0x3fffffff); c >>= 30;
+	c += mul32x32_64(x[0], y[8]) + mul32x32_64(x[1], y[7]) + mul32x32_64(x[2], y[6]) + mul32x32_64(x[3], y[5]) + mul32x32_64(x[4], y[4]) + mul32x32_64(x[5], y[3]) + mul32x32_64(x[6], y[2]) + mul32x32_64(x[7], y[1]) + mul32x32_64(x[8], y[0]);
+	f = (bignum256modm_element_t)c; r1[8] = (f & 0x00ffffff); q1[0] = (f >> 8) & 0x3fffff; c >>= 30;
+	c += mul32x32_64(x[1], y[8]) + mul32x32_64(x[2], y[7]) + mul32x32_64(x[3], y[6]) + mul32x32_64(x[4], y[5]) + mul32x32_64(x[5], y[4]) + mul32x32_64(x[6], y[3]) + mul32x32_64(x[7], y[2]) + mul32x32_64(x[8], y[1]);
+	f = (bignum256modm_element_t)c; q1[0] = (q1[0] | (f << 22)) & 0x3fffffff; q1[1] = (f >> 8) & 0x3fffff; c >>= 30;	
+	c += mul32x32_64(x[2], y[8]) + mul32x32_64(x[3], y[7]) + mul32x32_64(x[4], y[6]) + mul32x32_64(x[5], y[5]) + mul32x32_64(x[6], y[4]) + mul32x32_64(x[7], y[3]) + mul32x32_64(x[8], y[2]);
+	f = (bignum256modm_element_t)c; q1[1] = (q1[1] | (f << 22)) & 0x3fffffff; q1[2] = (f >> 8) & 0x3fffff; c >>= 30;	
+	c += mul32x32_64(x[3], y[8]) + mul32x32_64(x[4], y[7]) + mul32x32_64(x[5], y[6]) + mul32x32_64(x[6], y[5]) + mul32x32_64(x[7], y[4]) + mul32x32_64(x[8], y[3]);
+	f = (bignum256modm_element_t)c; q1[2] = (q1[2] | (f << 22)) & 0x3fffffff; q1[3] = (f >> 8) & 0x3fffff; c >>= 30;	
+	c += mul32x32_64(x[4], y[8]) + mul32x32_64(x[5], y[7]) + mul32x32_64(x[6], y[6]) + mul32x32_64(x[7], y[5]) + mul32x32_64(x[8], y[4]);
+	f = (bignum256modm_element_t)c; q1[3] = (q1[3] | (f << 22)) & 0x3fffffff; q1[4] = (f >> 8) & 0x3fffff; c >>= 30;	
+	c += mul32x32_64(x[5], y[8]) + mul32x32_64(x[6], y[7]) + mul32x32_64(x[7], y[6]) + mul32x32_64(x[8], y[5]);
+	f = (bignum256modm_element_t)c; q1[4] = (q1[4] | (f << 22)) & 0x3fffffff; q1[5] = (f >> 8) & 0x3fffff; c >>= 30;
+	c += mul32x32_64(x[6], y[8]) + mul32x32_64(x[7], y[7]) + mul32x32_64(x[8], y[6]);
+	f = (bignum256modm_element_t)c; q1[5] = (q1[5] | (f << 22)) & 0x3fffffff; q1[6] = (f >> 8) & 0x3fffff; c >>= 30;
+	c += mul32x32_64(x[7], y[8]) + mul32x32_64(x[8], y[7]);
+	f = (bignum256modm_element_t)c; q1[6] = (q1[6] | (f << 22)) & 0x3fffffff; q1[7] = (f >> 8) & 0x3fffff; c >>= 30;
+	c += mul32x32_64(x[8], y[8]);
+	f = (bignum256modm_element_t)c; q1[7] = (q1[7] | (f << 22)) & 0x3fffffff; q1[8] = (f >> 8) & 0x3fffff;
+
+	barrett_reduce256_modm(r, q1, r1);
+}
+
+static void
+expand256_modm(bignum256modm out, const unsigned char *in, size_t len) {
+	unsigned char work[64] = {0};
+	bignum256modm_element_t x[16];
+	bignum256modm q1;
+
+	memcpy(work, in, len);
+	x[0] = U8TO32_LE(work +  0);
+	x[1] = U8TO32_LE(work +  4);
+	x[2] = U8TO32_LE(work +  8);
+	x[3] = U8TO32_LE(work + 12);
+	x[4] = U8TO32_LE(work + 16);
+	x[5] = U8TO32_LE(work + 20);
+	x[6] = U8TO32_LE(work + 24);
+	x[7] = U8TO32_LE(work + 28);
+	x[8] = U8TO32_LE(work + 32);
+	x[9] = U8TO32_LE(work + 36);
+	x[10] = U8TO32_LE(work + 40);
+	x[11] = U8TO32_LE(work + 44);
+	x[12] = U8TO32_LE(work + 48);
+	x[13] = U8TO32_LE(work + 52);
+	x[14] = U8TO32_LE(work + 56);
+	x[15] = U8TO32_LE(work + 60);
+
+	/* r1 = (x mod 256^(32+1)) = x mod (2^8)(31+1) = x & ((1 << 264) - 1) */
+	out[0] = (                         x[0]) & 0x3fffffff;
+	out[1] = ((x[ 0] >> 30) | (x[ 1] <<  2)) & 0x3fffffff;
+	out[2] = ((x[ 1] >> 28) | (x[ 2] <<  4)) & 0x3fffffff;
+	out[3] = ((x[ 2] >> 26) | (x[ 3] <<  6)) & 0x3fffffff;
+	out[4] = ((x[ 3] >> 24) | (x[ 4] <<  8)) & 0x3fffffff;
+	out[5] = ((x[ 4] >> 22) | (x[ 5] << 10)) & 0x3fffffff;
+	out[6] = ((x[ 5] >> 20) | (x[ 6] << 12)) & 0x3fffffff;
+	out[7] = ((x[ 6] >> 18) | (x[ 7] << 14)) & 0x3fffffff;
+	out[8] = ((x[ 7] >> 16) | (x[ 8] << 16)) & 0x00ffffff;
+
+	/* 8*31 = 248 bits, no need to reduce */
+	if (len < 32)
+		return;
+
+	/* q1 = x >> 248 = 264 bits = 9 30 bit elements */
+	q1[0] = ((x[ 7] >> 24) | (x[ 8] <<  8)) & 0x3fffffff;
+	q1[1] = ((x[ 8] >> 22) | (x[ 9] << 10)) & 0x3fffffff;
+	q1[2] = ((x[ 9] >> 20) | (x[10] << 12)) & 0x3fffffff;
+	q1[3] = ((x[10] >> 18) | (x[11] << 14)) & 0x3fffffff;
+	q1[4] = ((x[11] >> 16) | (x[12] << 16)) & 0x3fffffff;
+	q1[5] = ((x[12] >> 14) | (x[13] << 18)) & 0x3fffffff;
+	q1[6] = ((x[13] >> 12) | (x[14] << 20)) & 0x3fffffff;
+	q1[7] = ((x[14] >> 10) | (x[15] << 22)) & 0x3fffffff;
+	q1[8] = ((x[15] >>  8)                );	
+
+	barrett_reduce256_modm(out, q1, out);
+}
+
+static void
+expand_raw256_modm(bignum256modm out, const unsigned char in[32]) {
+	bignum256modm_element_t x[8];
+
+	x[0] = U8TO32_LE(in +  0);
+	x[1] = U8TO32_LE(in +  4);
+	x[2] = U8TO32_LE(in +  8);
+	x[3] = U8TO32_LE(in + 12);
+	x[4] = U8TO32_LE(in + 16);
+	x[5] = U8TO32_LE(in + 20);
+	x[6] = U8TO32_LE(in + 24);
+	x[7] = U8TO32_LE(in + 28);
+
+	out[0] = (                         x[0]) & 0x3fffffff;
+	out[1] = ((x[ 0] >> 30) | (x[ 1] <<  2)) & 0x3fffffff;
+	out[2] = ((x[ 1] >> 28) | (x[ 2] <<  4)) & 0x3fffffff;
+	out[3] = ((x[ 2] >> 26) | (x[ 3] <<  6)) & 0x3fffffff;
+	out[4] = ((x[ 3] >> 24) | (x[ 4] <<  8)) & 0x3fffffff;
+	out[5] = ((x[ 4] >> 22) | (x[ 5] << 10)) & 0x3fffffff;
+	out[6] = ((x[ 5] >> 20) | (x[ 6] << 12)) & 0x3fffffff;
+	out[7] = ((x[ 6] >> 18) | (x[ 7] << 14)) & 0x3fffffff;
+	out[8] = ((x[ 7] >> 16)                ) & 0x0000ffff;
+}
+
+static void
+contract256_modm(unsigned char out[32], const bignum256modm in) {
+	U32TO8_LE(out +  0, (in[0]      ) | (in[1] << 30));
+	U32TO8_LE(out +  4, (in[1] >>  2) | (in[2] << 28));
+	U32TO8_LE(out +  8, (in[2] >>  4) | (in[3] << 26));
+	U32TO8_LE(out + 12, (in[3] >>  6) | (in[4] << 24));
+	U32TO8_LE(out + 16, (in[4] >>  8) | (in[5] << 22));
+	U32TO8_LE(out + 20, (in[5] >> 10) | (in[6] << 20));
+	U32TO8_LE(out + 24, (in[6] >> 12) | (in[7] << 18));
+	U32TO8_LE(out + 28, (in[7] >> 14) | (in[8] << 16));
+}
+
+
+
+static void
+contract256_window4_modm(signed char r[64], const bignum256modm in) {
+	char carry;
+	signed char *quads = r;
+	bignum256modm_element_t i, j, v;
+
+	for (i = 0; i < 8; i += 2) {
+		v = in[i];
+		for (j = 0; j < 7; j++) {
+			*quads++ = (v & 15);
+			v >>= 4;
+		}
+		v |= (in[i+1] << 2);
+		for (j = 0; j < 8; j++) {
+			*quads++ = (v & 15);
+			v >>= 4;
+		}
+	}
+	v = in[8];
+	*quads++ = (v & 15); v >>= 4;
+	*quads++ = (v & 15); v >>= 4;
+	*quads++ = (v & 15); v >>= 4;
+	*quads++ = (v & 15); v >>= 4;
+
+	/* making it signed */
+	carry = 0;
+	for(i = 0; i < 63; i++) {
+		r[i] += carry;
+		r[i+1] += (r[i] >> 4);
+		r[i] &= 15;
+		carry = (r[i] >> 3);
+		r[i] -= (carry << 4);
+	}
+	r[63] += carry;
+}
+
+static void
+contract256_slidingwindow_modm(signed char r[256], const bignum256modm s, int windowsize) {
+	int i,j,k,b;
+	int m = (1 << (windowsize - 1)) - 1, soplen = 256;
+	signed char *bits = r;
+	bignum256modm_element_t v;
+
+	/* first put the binary expansion into r  */
+	for (i = 0; i < 8; i++) {
+		v = s[i];
+		for (j = 0; j < 30; j++, v >>= 1)
+			*bits++ = (v & 1);
+	}
+	v = s[8];
+	for (j = 0; j < 16; j++, v >>= 1)
+		*bits++ = (v & 1);
+
+	/* Making it sliding window */
+	for (j = 0; j < soplen; j++) {
+		if (!r[j])
+			continue;
+
+		for (b = 1; (b < (soplen - j)) && (b <= 6); b++) {
+			if ((r[j] + (r[j + b] << b)) <= m) {
+				r[j] += r[j + b] << b;
+				r[j + b] = 0;
+			} else if ((r[j] - (r[j + b] << b)) >= -m) {
+				r[j] -= r[j + b] << b;
+				for (k = j + b; k < soplen; k++) {
+					if (!r[k]) {
+						r[k] = 1;
+						break;
+					}
+					r[k] = 0;
+				}
+			} else if (r[j + b]) {
+				break;
+			}
+		}
+	}
+}
+
+
+/*
+	helpers for batch verifcation, are allowed to be vartime
+*/
+
+/* out = a - b, a must be larger than b */
+static void
+sub256_modm_batch(bignum256modm out, const bignum256modm a, const bignum256modm b, size_t limbsize) {
+	size_t i = 0;
+	bignum256modm_element_t carry = 0;
+	switch (limbsize) {
+		case 8: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 7: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 6: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 5: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 4: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 31); out[i] &= 0x3fffffff; i++;
+		case 0: 
+		default: out[i] = (a[i] - b[i]) - carry;
+	}
+}
+
+
+/* is a < b */
+static int
+lt256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) {
+	switch (limbsize) {
+		case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1;
+		case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1;
+		case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1;
+		case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1;
+		case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1;
+		case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1;
+		case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1;
+		case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1;
+		case 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1;
+	}
+	return 0;
+}
+
+/* is a <= b */
+static int
+lte256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) {
+	switch (limbsize) {
+		case 8: if (a[8] > b[8]) return 0; if (a[8] < b[8]) return 1;
+		case 7: if (a[7] > b[7]) return 0; if (a[7] < b[7]) return 1;
+		case 6: if (a[6] > b[6]) return 0; if (a[6] < b[6]) return 1;
+		case 5: if (a[5] > b[5]) return 0; if (a[5] < b[5]) return 1;
+		case 4: if (a[4] > b[4]) return 0; if (a[4] < b[4]) return 1;
+		case 3: if (a[3] > b[3]) return 0; if (a[3] < b[3]) return 1;
+		case 2: if (a[2] > b[2]) return 0; if (a[2] < b[2]) return 1;
+		case 1: if (a[1] > b[1]) return 0; if (a[1] < b[1]) return 1;
+		case 0: if (a[0] > b[0]) return 0; if (a[0] < b[0]) return 1;
+	}
+	return 1;
+}
+
+
+/* is a == 0 */
+static int
+iszero256_modm_batch(const bignum256modm a) {
+	size_t i;
+	for (i = 0; i < 9; i++)
+		if (a[i])
+			return 0;
+	return 1;
+}
+
+/* is a == 1 */
+static int
+isone256_modm_batch(const bignum256modm a) {
+	size_t i;
+	if (a[0] != 1)
+		return 0;
+	for (i = 1; i < 9; i++)
+		if (a[i])
+			return 0;
+	return 1;
+}
+
+/* can a fit in to (at most) 128 bits */
+static int
+isatmost128bits256_modm_batch(const bignum256modm a) {
+	uint32_t mask =
+		((a[8]             )  | /*  16 */
+		 (a[7]             )  | /*  46 */
+		 (a[6]             )  | /*  76 */
+		 (a[5]             )  | /* 106 */
+		 (a[4] & 0x3fffff00));  /* 128 */
+
+	return (mask == 0);
+}

external/ed25519-donna/modm-donna-64bit.h

@@ -0,0 +1,361 @@
+/*
+	Public domain by Andrew M. <liquidsun@gmail.com>
+*/
+
+
+/*
+	Arithmetic modulo the group order n = 2^252 +  27742317777372353535851937790883648493 = 7237005577332262213973186563042994240857116359379907606001950938285454250989
+
+	k = 32
+	b = 1 << 8 = 256
+	m = 2^252 + 27742317777372353535851937790883648493 = 0x1000000000000000000000000000000014def9dea2f79cd65812631a5cf5d3ed
+	mu = floor( b^(k*2) / m ) = 0xfffffffffffffffffffffffffffffffeb2106215d086329a7ed9ce5a30a2c131b
+*/
+
+#define bignum256modm_bits_per_limb 56
+#define bignum256modm_limb_size 5
+
+typedef uint64_t bignum256modm_element_t;
+typedef bignum256modm_element_t bignum256modm[5];
+
+static const bignum256modm modm_m = {
+	0x12631a5cf5d3ed, 
+	0xf9dea2f79cd658, 
+	0x000000000014de, 
+	0x00000000000000, 
+	0x00000010000000
+};
+
+static const bignum256modm modm_mu = {
+	0x9ce5a30a2c131b,
+	0x215d086329a7ed,
+	0xffffffffeb2106,
+	0xffffffffffffff,
+	0x00000fffffffff
+};
+
+static bignum256modm_element_t
+lt_modm(bignum256modm_element_t a, bignum256modm_element_t b) {
+	return (a - b) >> 63;
+}
+
+static void
+reduce256_modm(bignum256modm r) {
+	bignum256modm t;
+	bignum256modm_element_t b = 0, pb, mask;
+
+	/* t = r - m */
+	pb = 0;
+	pb += modm_m[0]; b = lt_modm(r[0], pb); t[0] = (r[0] - pb + (b << 56)); pb = b;
+	pb += modm_m[1]; b = lt_modm(r[1], pb); t[1] = (r[1] - pb + (b << 56)); pb = b;
+	pb += modm_m[2]; b = lt_modm(r[2], pb); t[2] = (r[2] - pb + (b << 56)); pb = b;
+	pb += modm_m[3]; b = lt_modm(r[3], pb); t[3] = (r[3] - pb + (b << 56)); pb = b;
+	pb += modm_m[4]; b = lt_modm(r[4], pb); t[4] = (r[4] - pb + (b << 32)); 
+
+	/* keep r if r was smaller than m */
+	mask = b - 1;
+
+	r[0] ^= mask & (r[0] ^ t[0]);
+	r[1] ^= mask & (r[1] ^ t[1]);
+	r[2] ^= mask & (r[2] ^ t[2]);
+	r[3] ^= mask & (r[3] ^ t[3]);
+	r[4] ^= mask & (r[4] ^ t[4]);
+}
+
+static void
+barrett_reduce256_modm(bignum256modm r, const bignum256modm q1, const bignum256modm r1) {
+	bignum256modm q3, r2;
+	uint128_t c, mul;
+	bignum256modm_element_t f, b, pb;
+
+	/* q1 = x >> 248 = 264 bits = 5 56 bit elements
+	   q2 = mu * q1
+	   q3 = (q2 / 256(32+1)) = q2 / (2^8)^(32+1) = q2 >> 264 */
+	mul64x64_128(c, modm_mu[0], q1[3])                 mul64x64_128(mul, modm_mu[3], q1[0]) add128(c, mul) mul64x64_128(mul, modm_mu[1], q1[2]) add128(c, mul) mul64x64_128(mul, modm_mu[2], q1[1]) add128(c, mul) shr128(f, c, 56);
+	mul64x64_128(c, modm_mu[0], q1[4]) add128_64(c, f) mul64x64_128(mul, modm_mu[4], q1[0]) add128(c, mul) mul64x64_128(mul, modm_mu[3], q1[1]) add128(c, mul) mul64x64_128(mul, modm_mu[1], q1[3]) add128(c, mul) mul64x64_128(mul, modm_mu[2], q1[2]) add128(c, mul)
+	f = lo128(c); q3[0] = (f >> 40) & 0xffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_mu[4], q1[1]) add128_64(c, f) mul64x64_128(mul, modm_mu[1], q1[4]) add128(c, mul) mul64x64_128(mul, modm_mu[2], q1[3]) add128(c, mul) mul64x64_128(mul, modm_mu[3], q1[2]) add128(c, mul)
+	f = lo128(c); q3[0] |= (f << 16) & 0xffffffffffffff; q3[1] = (f >> 40) & 0xffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_mu[4], q1[2]) add128_64(c, f) mul64x64_128(mul, modm_mu[2], q1[4]) add128(c, mul) mul64x64_128(mul, modm_mu[3], q1[3]) add128(c, mul)
+	f = lo128(c); q3[1] |= (f << 16) & 0xffffffffffffff; q3[2] = (f >> 40) & 0xffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_mu[4], q1[3]) add128_64(c, f) mul64x64_128(mul, modm_mu[3], q1[4]) add128(c, mul)
+	f = lo128(c); q3[2] |= (f << 16) & 0xffffffffffffff; q3[3] = (f >> 40) & 0xffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_mu[4], q1[4]) add128_64(c, f)
+	f = lo128(c); q3[3] |= (f << 16) & 0xffffffffffffff; q3[4] = (f >> 40) & 0xffff; shr128(f, c, 56);
+	q3[4] |= (f << 16);
+
+	mul64x64_128(c, modm_m[0], q3[0]) 
+	r2[0] = lo128(c) & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_m[0], q3[1]) add128_64(c, f) mul64x64_128(mul, modm_m[1], q3[0]) add128(c, mul)
+	r2[1] = lo128(c) & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_m[0], q3[2]) add128_64(c, f) mul64x64_128(mul, modm_m[2], q3[0]) add128(c, mul) mul64x64_128(mul, modm_m[1], q3[1]) add128(c, mul)
+	r2[2] = lo128(c) & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_m[0], q3[3]) add128_64(c, f) mul64x64_128(mul, modm_m[3], q3[0]) add128(c, mul) mul64x64_128(mul, modm_m[1], q3[2]) add128(c, mul) mul64x64_128(mul, modm_m[2], q3[1]) add128(c, mul)
+	r2[3] = lo128(c) & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, modm_m[0], q3[4]) add128_64(c, f) mul64x64_128(mul, modm_m[4], q3[0]) add128(c, mul) mul64x64_128(mul, modm_m[3], q3[1]) add128(c, mul) mul64x64_128(mul, modm_m[1], q3[3]) add128(c, mul) mul64x64_128(mul, modm_m[2], q3[2]) add128(c, mul)
+	r2[4] = lo128(c) & 0x0000ffffffffff;
+
+	pb = 0;
+	pb += r2[0]; b = lt_modm(r1[0], pb); r[0] = (r1[0] - pb + (b << 56)); pb = b;
+	pb += r2[1]; b = lt_modm(r1[1], pb); r[1] = (r1[1] - pb + (b << 56)); pb = b;
+	pb += r2[2]; b = lt_modm(r1[2], pb); r[2] = (r1[2] - pb + (b << 56)); pb = b;
+	pb += r2[3]; b = lt_modm(r1[3], pb); r[3] = (r1[3] - pb + (b << 56)); pb = b;
+	pb += r2[4]; b = lt_modm(r1[4], pb); r[4] = (r1[4] - pb + (b << 40)); 
+
+	reduce256_modm(r);
+	reduce256_modm(r);
+}
+
+
+static void
+add256_modm(bignum256modm r, const bignum256modm x, const bignum256modm y) {
+	bignum256modm_element_t c;
+
+	c  = x[0] + y[0]; r[0] = c & 0xffffffffffffff; c >>= 56;
+	c += x[1] + y[1]; r[1] = c & 0xffffffffffffff; c >>= 56;
+	c += x[2] + y[2]; r[2] = c & 0xffffffffffffff; c >>= 56;
+	c += x[3] + y[3]; r[3] = c & 0xffffffffffffff; c >>= 56;
+	c += x[4] + y[4]; r[4] = c;
+
+	reduce256_modm(r);
+}
+
+static void
+mul256_modm(bignum256modm r, const bignum256modm x, const bignum256modm y) {
+	bignum256modm q1, r1;
+	uint128_t c, mul;
+	bignum256modm_element_t f;
+
+	mul64x64_128(c, x[0], y[0])
+	f = lo128(c); r1[0] = f & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[0], y[1]) add128_64(c, f) mul64x64_128(mul, x[1], y[0]) add128(c, mul) 
+	f = lo128(c); r1[1] = f & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[0], y[2]) add128_64(c, f) mul64x64_128(mul, x[2], y[0]) add128(c, mul) mul64x64_128(mul, x[1], y[1]) add128(c, mul) 
+	f = lo128(c); r1[2] = f & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[0], y[3]) add128_64(c, f) mul64x64_128(mul, x[3], y[0]) add128(c, mul) mul64x64_128(mul, x[1], y[2]) add128(c, mul) mul64x64_128(mul, x[2], y[1]) add128(c, mul) 
+	f = lo128(c); r1[3] = f & 0xffffffffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[0], y[4]) add128_64(c, f) mul64x64_128(mul, x[4], y[0]) add128(c, mul) mul64x64_128(mul, x[3], y[1]) add128(c, mul) mul64x64_128(mul, x[1], y[3]) add128(c, mul) mul64x64_128(mul, x[2], y[2]) add128(c, mul) 
+	f = lo128(c); r1[4] = f & 0x0000ffffffffff; q1[0] = (f >> 24) & 0xffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[4], y[1]) add128_64(c, f) mul64x64_128(mul, x[1], y[4]) add128(c, mul) mul64x64_128(mul, x[2], y[3]) add128(c, mul) mul64x64_128(mul, x[3], y[2]) add128(c, mul) 
+	f = lo128(c); q1[0] |= (f << 32) & 0xffffffffffffff; q1[1] = (f >> 24) & 0xffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[4], y[2]) add128_64(c, f) mul64x64_128(mul, x[2], y[4]) add128(c, mul) mul64x64_128(mul, x[3], y[3]) add128(c, mul) 
+	f = lo128(c); q1[1] |= (f << 32) & 0xffffffffffffff; q1[2] = (f >> 24) & 0xffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[4], y[3]) add128_64(c, f) mul64x64_128(mul, x[3], y[4]) add128(c, mul) 
+	f = lo128(c); q1[2] |= (f << 32) & 0xffffffffffffff; q1[3] = (f >> 24) & 0xffffffff; shr128(f, c, 56);
+	mul64x64_128(c, x[4], y[4]) add128_64(c, f)
+	f = lo128(c); q1[3] |= (f << 32) & 0xffffffffffffff; q1[4] = (f >> 24) & 0xffffffff; shr128(f, c, 56);
+	q1[4] |= (f << 32);
+
+	barrett_reduce256_modm(r, q1, r1);
+}
+
+static void
+expand256_modm(bignum256modm out, const unsigned char *in, size_t len) {
+	unsigned char work[64] = {0};
+	bignum256modm_element_t x[16];
+	bignum256modm q1;
+
+	memcpy(work, in, len);
+	x[0] = U8TO64_LE(work +  0);
+	x[1] = U8TO64_LE(work +  8);
+	x[2] = U8TO64_LE(work + 16);
+	x[3] = U8TO64_LE(work + 24);
+	x[4] = U8TO64_LE(work + 32);
+	x[5] = U8TO64_LE(work + 40);
+	x[6] = U8TO64_LE(work + 48);
+	x[7] = U8TO64_LE(work + 56);
+
+	/* r1 = (x mod 256^(32+1)) = x mod (2^8)(31+1) = x & ((1 << 264) - 1) */
+	out[0] = (                         x[0]) & 0xffffffffffffff;
+	out[1] = ((x[ 0] >> 56) | (x[ 1] <<  8)) & 0xffffffffffffff;
+	out[2] = ((x[ 1] >> 48) | (x[ 2] << 16)) & 0xffffffffffffff;
+	out[3] = ((x[ 2] >> 40) | (x[ 3] << 24)) & 0xffffffffffffff;
+	out[4] = ((x[ 3] >> 32) | (x[ 4] << 32)) & 0x0000ffffffffff;
+
+	/* under 252 bits, no need to reduce */
+	if (len < 32)
+		return;
+
+	/* q1 = x >> 248 = 264 bits */
+	q1[0] = ((x[ 3] >> 56) | (x[ 4] <<  8)) & 0xffffffffffffff;
+	q1[1] = ((x[ 4] >> 48) | (x[ 5] << 16)) & 0xffffffffffffff;
+	q1[2] = ((x[ 5] >> 40) | (x[ 6] << 24)) & 0xffffffffffffff;
+	q1[3] = ((x[ 6] >> 32) | (x[ 7] << 32)) & 0xffffffffffffff;
+	q1[4] = ((x[ 7] >> 24)                );
+
+	barrett_reduce256_modm(out, q1, out);
+}
+
+static void
+expand_raw256_modm(bignum256modm out, const unsigned char in[32]) {
+	bignum256modm_element_t x[4];
+
+	x[0] = U8TO64_LE(in +  0);
+	x[1] = U8TO64_LE(in +  8);
+	x[2] = U8TO64_LE(in + 16);
+	x[3] = U8TO64_LE(in + 24);
+
+	out[0] = (                         x[0]) & 0xffffffffffffff;
+	out[1] = ((x[ 0] >> 56) | (x[ 1] <<  8)) & 0xffffffffffffff;
+	out[2] = ((x[ 1] >> 48) | (x[ 2] << 16)) & 0xffffffffffffff;
+	out[3] = ((x[ 2] >> 40) | (x[ 3] << 24)) & 0xffffffffffffff;
+	out[4] = ((x[ 3] >> 32)                ) & 0x000000ffffffff;
+}
+
+static void
+contract256_modm(unsigned char out[32], const bignum256modm in) {
+	U64TO8_LE(out +  0, (in[0]      ) | (in[1] << 56));
+	U64TO8_LE(out +  8, (in[1] >>  8) | (in[2] << 48));
+	U64TO8_LE(out + 16, (in[2] >> 16) | (in[3] << 40));
+	U64TO8_LE(out + 24, (in[3] >> 24) | (in[4] << 32));
+}
+
+static void
+contract256_window4_modm(signed char r[64], const bignum256modm in) {
+	char carry;
+	signed char *quads = r;
+	bignum256modm_element_t i, j, v, m;
+
+	for (i = 0; i < 5; i++) {
+		v = in[i];
+		m = (i == 4) ? 8 : 14;
+		for (j = 0; j < m; j++) {
+			*quads++ = (v & 15);
+			v >>= 4;
+		}
+	}
+
+	/* making it signed */
+	carry = 0;
+	for(i = 0; i < 63; i++) {
+		r[i] += carry;
+		r[i+1] += (r[i] >> 4);
+		r[i] &= 15;
+		carry = (r[i] >> 3);
+		r[i] -= (carry << 4);
+	}
+	r[63] += carry;
+}
+
+static void
+contract256_slidingwindow_modm(signed char r[256], const bignum256modm s, int windowsize) {
+	int i,j,k,b;
+	int m = (1 << (windowsize - 1)) - 1, soplen = 256;
+	signed char *bits = r;
+	bignum256modm_element_t v;
+
+	/* first put the binary expansion into r  */
+	for (i = 0; i < 4; i++) {
+		v = s[i];
+		for (j = 0; j < 56; j++, v >>= 1)
+			*bits++ = (v & 1);
+	}
+	v = s[4];
+	for (j = 0; j < 32; j++, v >>= 1)
+		*bits++ = (v & 1);
+
+	/* Making it sliding window */
+	for (j = 0; j < soplen; j++) {
+		if (!r[j])
+			continue;
+
+		for (b = 1; (b < (soplen - j)) && (b <= 6); b++) {
+			if ((r[j] + (r[j + b] << b)) <= m) {
+				r[j] += r[j + b] << b;
+				r[j + b] = 0;
+			} else if ((r[j] - (r[j + b] << b)) >= -m) {
+				r[j] -= r[j + b] << b;
+				for (k = j + b; k < soplen; k++) {
+					if (!r[k]) {
+						r[k] = 1;
+						break;
+					}
+					r[k] = 0;
+				}
+			} else if (r[j + b]) {
+				break;
+			}
+		}
+	}
+}
+
+/*
+	helpers for batch verifcation, are allowed to be vartime
+*/
+
+/* out = a - b, a must be larger than b */
+static void
+sub256_modm_batch(bignum256modm out, const bignum256modm a, const bignum256modm b, size_t limbsize) {
+	size_t i = 0;
+	bignum256modm_element_t carry = 0;
+	switch (limbsize) {
+		case 4: out[i] = (a[i] - b[i])        ; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++;
+		case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++;
+		case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++;
+		case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++;
+		case 0: 
+		default: out[i] = (a[i] - b[i]) - carry;
+	}
+}
+
+
+/* is a < b */
+static int
+lt256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) {
+	size_t i = 0;
+	bignum256modm_element_t t, carry = 0;
+	switch (limbsize) {
+		case 4: t = (a[i] - b[i])        ; carry = (t >> 63); i++;
+		case 3: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++;
+		case 2: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++;
+		case 1: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++;
+		case 0: t = (a[i] - b[i]) - carry; carry = (t >> 63);
+	}
+	return (int)carry;
+}
+
+/* is a <= b */
+static int
+lte256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) {
+	size_t i = 0;
+	bignum256modm_element_t t, carry = 0;
+	switch (limbsize) {
+		case 4: t = (b[i] - a[i])        ; carry = (t >> 63); i++;
+		case 3: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++;
+		case 2: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++;
+		case 1: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++;
+		case 0: t = (b[i] - a[i]) - carry; carry = (t >> 63);
+	}
+	return (int)!carry;
+}
+
+/* is a == 0 */
+static int
+iszero256_modm_batch(const bignum256modm a) {
+	size_t i;
+	for (i = 0; i < 5; i++)
+		if (a[i])
+			return 0;
+	return 1;
+}
+
+/* is a == 1 */
+static int
+isone256_modm_batch(const bignum256modm a) {
+	size_t i;
+	for (i = 0; i < 5; i++)
+		if (a[i] != ((i) ? 0 : 1))
+			return 0;
+	return 1;
+}
+
+/* can a fit in to (at most) 128 bits */
+static int
+isatmost128bits256_modm_batch(const bignum256modm a) {
+	uint64_t mask =
+		((a[4]                   )  | /*  32 */
+		 (a[3]                   )  | /*  88 */
+		 (a[2] & 0xffffffffff0000));
+
+	return (mask == 0);
+}

external/ed25519-donna/test-internals.c

@@ -0,0 +1,176 @@
+#include <stdio.h>
+#include "ed25519-donna.h"
+
+static int
+test_adds() {
+#if defined(HAVE_UINT128) && !defined(ED25519_SSE2)
+	/* largest result for each limb from a mult or square: all elements except r1 reduced, r1 overflowed as far as possible */
+	static const bignum25519 max_bignum = {
+		0x7ffffffffffff,0x8000000001230,0x7ffffffffffff,0x7ffffffffffff,0x7ffffffffffff
+	};
+
+	/* what max_bignum should fully reduce to */
+	static const unsigned char max_bignum_raw[32] = {
+		0x12,0x00,0x00,0x00,0x00,0x00,0x88,0x91,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
+	};
+
+	/* (max_bignum + max_bignum)^2 */
+	static const unsigned char max_bignum2_squared_raw[32] = {
+		0x10,0x05,0x00,0x00,0x00,0x00,0x80,0xdc,0x51,0x00,0x00,0x00,0x00,0x61,0xed,0x4a,
+		0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	};
+
+	/* ((max_bignum + max_bignum) + max_bignum)^2 */
+	static const unsigned char max_bignum3_squared_raw[32] = {
+		0x64,0x0b,0x00,0x00,0x00,0x00,0x20,0x30,0xb8,0x00,0x00,0x00,0x40,0x1a,0x96,0xe8,
+		0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	};
+#else
+	/* largest result for each limb from a mult or square: all elements except r1 reduced, r1 overflowed as far as possible */
+	static const bignum25519 ALIGN(16) max_bignum = {
+		0x3ffffff,0x2000300,0x3ffffff,0x1ffffff,0x3ffffff,
+		0x1ffffff,0x3ffffff,0x1ffffff,0x3ffffff,0x1ffffff
+	};
+
+	/* what max_bignum should fully reduce to */
+	static const unsigned char max_bignum2_squared_raw[32] = {
+		0x10,0x05,0x00,0x40,0xc2,0x06,0x40,0x80,0x41,0x02,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	};
+
+	/* (max_bignum * max_bignum) */
+	static const unsigned char max_bignum3_squared_raw[32] = {
+		0x64,0x0b,0x00,0x10,0x35,0x0f,0x90,0x60,0x13,0x05,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	};
+#endif
+	unsigned char result[32];
+	static const bignum25519 ALIGN(16) zero = {0};
+	bignum25519 ALIGN(16) a, b, c;
+	size_t i;
+
+	/* a = (max_bignum + max_bignum) */
+	curve25519_add(a, max_bignum, max_bignum);
+
+	/* b = ((max_bignum + max_bignum) * (max_bignum + max_bignum)) */
+	curve25519_mul(b, a, a);
+	curve25519_contract(result, b);
+	if (memcmp(result, max_bignum2_squared_raw, 32) != 0)
+		return -1;
+	curve25519_square(b, a);
+	curve25519_contract(result, b);
+	if (memcmp(result, max_bignum2_squared_raw, 32) != 0)
+		return -1;
+
+	/* b = (max_bignum + max_bignum + max_bignum) */
+	curve25519_add_after_basic(b, a, max_bignum);
+
+	/* a = ((max_bignum + max_bignum + max_bignum) * (max_bignum + max_bignum + max_bignum)) */
+	curve25519_mul(a, b, b);
+	curve25519_contract(result, a);
+	if (memcmp(result, max_bignum3_squared_raw, 32) != 0)
+		return -1;
+	curve25519_square(a, b);
+	curve25519_contract(result, a);
+	if (memcmp(result, max_bignum3_squared_raw, 32) != 0)
+		return -1;
+
+	return 0;
+}
+
+static int
+test_subs() {
+#if defined(HAVE_UINT128) && !defined(ED25519_SSE2)
+	/* largest result for each limb from a mult or square: all elements except r1 reduced, r1 overflowed as far as possible */
+	static const bignum25519 max_bignum = {
+		0x7ffffffffffff,0x8000000001230,0x7ffffffffffff,0x7ffffffffffff,0x7ffffffffffff
+	};
+
+	/* what max_bignum should fully reduce to */
+	static const unsigned char max_bignum_raw[32] = {
+		0x12,0x00,0x00,0x00,0x00,0x00,0x88,0x91,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
+	};
+
+	/* (max_bignum * max_bignum) */
+	static const unsigned char max_bignum_squared_raw[32] = {
+		0x44,0x01,0x00,0x00,0x00,0x00,0x20,0x77,0x14,0x00,0x00,0x00,0x40,0x58,0xbb,0x52,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
+	};
+#else
+	/* largest result for each limb from a mult or square: all elements except r1 reduced, r1 overflowed as far as possible */
+	static const bignum25519 ALIGN(16) max_bignum = {
+		0x3ffffff,0x2000300,0x3ffffff,0x1ffffff,0x3ffffff,
+		0x1ffffff,0x3ffffff,0x1ffffff,0x3ffffff,0x1ffffff
+	};
+
+	/* what max_bignum should fully reduce to */
+	static const unsigned char max_bignum_raw[32] = {
+		0x12,0x00,0x00,0x04,0x0c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	};
+
+	/* (max_bignum * max_bignum) */
+	static const unsigned char max_bignum_squared_raw[32] = {
+		0x44,0x01,0x00,0x90,0xb0,0x01,0x10,0x60,0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+	};
+#endif
+	unsigned char result[32];
+	static const bignum25519 ALIGN(16) zero = {0};
+	bignum25519 ALIGN(16) a, b, c;
+	size_t i;
+
+	/* a = max_bignum - 0, which expands to 2p + max_bignum - 0 */
+	curve25519_sub(a, max_bignum, zero);
+	curve25519_contract(result, a);
+	if (memcmp(result, max_bignum_raw, 32) != 0)
+		return -1;
+
+	/* b = (max_bignum * max_bignum) */
+	curve25519_mul(b, a, a);
+	curve25519_contract(result, b);
+	if (memcmp(result, max_bignum_squared_raw, 32) != 0)
+		return -1;
+	curve25519_square(b, a);
+	curve25519_contract(result, b);
+	if (memcmp(result, max_bignum_squared_raw, 32) != 0)
+		return -1;
+
+	/* b = ((a - 0) - 0) */
+	curve25519_sub_after_basic(b, a, zero);
+	curve25519_contract(result, b);
+	if (memcmp(result, max_bignum_raw, 32) != 0)
+		return -1;
+
+	/* a = (max_bignum * max_bignum) */
+	curve25519_mul(a, b, b);
+	curve25519_contract(result, a);
+	if (memcmp(result, max_bignum_squared_raw, 32) != 0)
+		return -1;
+	curve25519_square(a, b);
+	curve25519_contract(result, a);
+	if (memcmp(result, max_bignum_squared_raw, 32) != 0)
+		return -1;
+
+
+	return 0;
+}
+
+
+int
+main() {
+	int ret = 0;
+	int single;
+	single = test_adds();
+	if (single) printf("test_adds: FAILED\n");
+	ret |= single;
+	single = test_subs();
+	if (single) printf("test_subs: FAILED\n");
+	ret |= single;
+	if (!ret) printf("success\n");
+	return ret;
+}
+
+

external/ed25519-donna/test-ticks.h

@@ -0,0 +1,50 @@
+#include "ed25519-donna-portable-identify.h"
+
+/* ticks - not tested on anything other than x86 */
+static uint64_t
+get_ticks(void) {
+#if defined(CPU_X86) || defined(CPU_X86_64)
+	#if defined(COMPILER_INTEL)
+		return _rdtsc();
+	#elif defined(COMPILER_MSVC)
+		return __rdtsc();
+	#elif defined(COMPILER_GCC)
+		uint32_t lo, hi;
+		__asm__ __volatile__("rdtsc" : "=a" (lo), "=d" (hi));
+		return ((uint64_t)lo | ((uint64_t)hi << 32));
+	#else
+		need rdtsc for this compiler
+	#endif
+#elif defined(OS_SOLARIS)
+	return (uint64_t)gethrtime();
+#elif defined(CPU_SPARC) && !defined(OS_OPENBSD)
+	uint64_t t;
+	__asm__ __volatile__("rd %%tick, %0" : "=r" (t));
+	return t;
+#elif defined(CPU_PPC)
+	uint32_t lo = 0, hi = 0;
+	__asm__ __volatile__("mftbu %0; mftb %1" : "=r" (hi), "=r" (lo));
+	return ((uint64_t)lo | ((uint64_t)hi << 32));
+#elif defined(CPU_IA64)
+	uint64_t t;
+	__asm__ __volatile__("mov %0=ar.itc" : "=r" (t));
+	return t;
+#elif defined(OS_NIX)
+	timeval t2;
+	gettimeofday(&t2, NULL);
+	t = ((uint64_t)t2.tv_usec << 32) | (uint64_t)t2.tv_sec;
+	return t;
+#else
+	need ticks for this platform
+#endif
+}
+
+#define timeit(x,minvar)         \
+	ticks = get_ticks();         \
+ 	x;                           \
+	ticks = get_ticks() - ticks; \
+	if (ticks < minvar)          \
+		minvar = ticks;
+
+#define maxticks 0xffffffffffffffffull
+

external/ed25519-donna/test.c

@@ -0,0 +1,260 @@
+/*
+	Validate ed25519 implementation against the official test vectors from 
+	http://ed25519.cr.yp.to/software.html
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include "ed25519.h"
+
+#include "test-ticks.h"
+
+static void
+edassert(int check, int round, const char *failreason) {
+	if (check)
+		return;
+	printf("round %d, %s\n", round, failreason);
+	exit(1);
+}
+
+static void
+edassert_die(const unsigned char *a, const unsigned char *b, size_t len, int round, const char *failreason) {
+	size_t i;
+	if (round > 0)
+		printf("round %d, %s\n", round, failreason);
+	else
+		printf("%s\n", failreason);
+	printf("want: "); for (i = 0; i < len; i++) printf("%02x,", a[i]); printf("\n");
+	printf("got : "); for (i = 0; i < len; i++) printf("%02x,", b[i]); printf("\n");
+	printf("diff: "); for (i = 0; i < len; i++) if (a[i] ^ b[i]) printf("%02x,", a[i] ^ b[i]); else printf("  ,"); printf("\n\n");
+	exit(1);
+}
+
+static void
+edassert_equal(const unsigned char *a, const unsigned char *b, size_t len, const char *failreason) {
+	if (memcmp(a, b, len) == 0)
+		return;
+	edassert_die(a, b, len, -1, failreason);
+}
+
+static void
+edassert_equal_round(const unsigned char *a, const unsigned char *b, size_t len, int round, const char *failreason) {
+	if (memcmp(a, b, len) == 0)
+		return;
+	edassert_die(a, b, len, round, failreason);
+}
+
+
+/* test data */
+typedef struct test_data_t {
+	unsigned char sk[32], pk[32], sig[64];
+	const char *m;
+} test_data;
+
+
+test_data dataset[] = {
+#include "regression.h"
+};
+
+/* result of the curve25519 scalarmult ((|255| * basepoint) * basepoint)... 1024 times */
+const curved25519_key curved25519_expected = {
+	0xac,0xce,0x24,0xb1,0xd4,0xa2,0x36,0x21,
+	0x15,0xe2,0x3e,0x84,0x3c,0x23,0x2b,0x5f,
+	0x95,0x6c,0xc0,0x7b,0x95,0x82,0xd7,0x93,
+	0xd5,0x19,0xb6,0xf1,0xfb,0x96,0xd6,0x04
+};
+
+
+/* from ed25519-donna-batchverify.h */
+extern unsigned char batch_point_buffer[3][32];
+
+/* y coordinate of the final point from 'amd64-51-30k' with the same random generator */
+static const unsigned char batch_verify_y[32] = {
+	0x51,0xe7,0x68,0xe0,0xf7,0xa1,0x88,0x45,
+	0xde,0xa1,0xcb,0xd9,0x37,0xd4,0x78,0x53,
+	0x1b,0x95,0xdb,0xbe,0x66,0x59,0x29,0x3b,
+	0x94,0x51,0x2f,0xbc,0x0d,0x66,0xba,0x3f
+};
+
+/*
+static const unsigned char batch_verify_y[32] = {
+	0x5c,0x63,0x96,0x26,0xca,0xfe,0xfd,0xc4,
+	0x2d,0x11,0xa8,0xe4,0xc4,0x46,0x42,0x97,
+	0x97,0x92,0xbe,0xe0,0x3c,0xef,0x96,0x01,
+	0x50,0xa1,0xcc,0x8f,0x50,0x85,0x76,0x7d
+};
+
+Introducing the 128 bit r scalars to the heap _before_ the largest scalar
+fits in to 128 bits alters the heap shape and produces a different,
+yet still neutral/valid y/z value.
+
+This was the value of introducing the r scalars when the largest scalar fit
+in to 135-256 bits. You can produce it with amd64-64-24k / amd64-51-32k
+with the random sequence used in the first pass by changing
+
+    unsigned long long hlen=((npoints+1)/2)|1;
+
+to
+
+    unsigned long long hlen=npoints;
+
+in ge25519_multi_scalarmult.c
+
+ed25519-donna-batchverify.h has been modified to match the 
+default amd64-64-24k / amd64-51-32k behaviour
+*/
+
+
+
+/* batch test */
+#define test_batch_count 64
+#define test_batch_rounds 96
+
+typedef enum batch_test_t {
+	batch_no_errors = 0,
+	batch_wrong_message = 1,
+	batch_wrong_pk = 2,
+	batch_wrong_sig = 3
+} batch_test;
+
+static int
+test_batch_instance(batch_test type, uint64_t *ticks) {
+	ed25519_secret_key sks[test_batch_count];
+	ed25519_public_key pks[test_batch_count];
+	ed25519_signature sigs[test_batch_count];
+	unsigned char messages[test_batch_count][128];
+	size_t message_lengths[test_batch_count];
+	const unsigned char *message_pointers[test_batch_count];
+	const unsigned char *pk_pointers[test_batch_count];
+	const unsigned char *sig_pointers[test_batch_count];
+	int valid[test_batch_count], ret, validret;
+	size_t i;
+	uint64_t t;
+
+	/* generate keys */
+	for (i = 0; i < test_batch_count; i++) {
+		ed25519_randombytes_unsafe(sks[i], sizeof(sks[i]));
+		ed25519_publickey(sks[i], pks[i]);
+		pk_pointers[i] = pks[i];
+	}
+
+	/* generate messages */
+	ed25519_randombytes_unsafe(messages, sizeof(messages));
+	for (i = 0; i < test_batch_count; i++) {
+		message_pointers[i] = messages[i];
+		message_lengths[i] = (i & 127) + 1;
+	}
+
+	/* sign messages */
+	for (i = 0; i < test_batch_count; i++) {
+		ed25519_sign(message_pointers[i], message_lengths[i], sks[i], pks[i], sigs[i]);
+		sig_pointers[i] = sigs[i];
+	}
+
+	validret = 0;
+	if (type == batch_wrong_message) {
+		message_pointers[0] = message_pointers[1];
+		validret = 1|2;
+	} else if (type == batch_wrong_pk) {
+		pk_pointers[0] = pk_pointers[1];
+		validret = 1|2;
+	} else if (type == batch_wrong_sig) {
+		sig_pointers[0] = sig_pointers[1];
+		validret = 1|2;
+	}
+
+	/* batch verify */
+	t = get_ticks();
+	ret = ed25519_sign_open_batch(message_pointers, message_lengths, pk_pointers, sig_pointers, test_batch_count, valid);
+	*ticks = get_ticks() - t;
+	edassert_equal((unsigned char *)&validret, (unsigned char *)&ret, sizeof(int), "batch return code");
+	for (i = 0; i < test_batch_count; i++) {
+		validret = ((type == batch_no_errors) || (i != 0)) ? 1 : 0;
+		edassert_equal((unsigned char *)&validret, (unsigned char *)&valid[i], sizeof(int), "individual batch return code");
+	}
+	return ret;
+}
+
+static void
+test_batch(void) {
+	uint64_t dummy_ticks, ticks[test_batch_rounds], best = maxticks, sum;
+	size_t i, count;
+
+	/* check the first pass for the expected result */
+	test_batch_instance(batch_no_errors, &dummy_ticks);
+	edassert_equal(batch_verify_y, batch_point_buffer[1], 32, "failed to generate expected result");
+
+	/* make sure ge25519_multi_scalarmult_vartime throws an error on the entire batch with wrong data */
+	for (i = 0; i < 4; i++) {
+		test_batch_instance(batch_wrong_message, &dummy_ticks);
+		test_batch_instance(batch_wrong_pk, &dummy_ticks);
+		test_batch_instance(batch_wrong_sig, &dummy_ticks);
+	}
+
+	/* speed test */
+	for (i = 0; i < test_batch_rounds; i++) {
+		test_batch_instance(batch_no_errors, &ticks[i]);
+		if (ticks[i] < best)
+			best = ticks[i];
+	}
+
+	/* take anything within 1% of the best time */
+	for (i = 0, sum = 0, count = 0; i < test_batch_rounds; i++) {
+		if (ticks[i] < (best * 1.01)) {
+			sum += ticks[i];
+			count++;
+		}
+	}
+	printf("%.0f ticks/verification\n", (double)sum / (count * test_batch_count));
+}
+
+static void
+test_main(void) {
+	int i, res;
+	ed25519_public_key pk;
+	ed25519_signature sig;
+	unsigned char forge[1024] = {'x'};
+	curved25519_key csk[2] = {{255}};
+	uint64_t ticks, pkticks = maxticks, signticks = maxticks, openticks = maxticks, curvedticks = maxticks;
+
+	for (i = 0; i < 1024; i++) {
+		ed25519_publickey(dataset[i].sk, pk);
+		edassert_equal_round(dataset[i].pk, pk, sizeof(pk), i, "public key didn't match");
+		ed25519_sign((unsigned char *)dataset[i].m, i, dataset[i].sk, pk, sig);
+		edassert_equal_round(dataset[i].sig, sig, sizeof(sig), i, "signature didn't match");
+		edassert(!ed25519_sign_open((unsigned char *)dataset[i].m, i, pk, sig), i, "failed to open message");
+
+		memcpy(forge, dataset[i].m, i);
+		if (i)
+			forge[i - 1] += 1;
+
+		edassert(ed25519_sign_open(forge, (i) ? i : 1, pk, sig), i, "opened forged message");
+	}
+
+	for (i = 0; i < 1024; i++)
+		curved25519_scalarmult_basepoint(csk[(i & 1) ^ 1], csk[i & 1]);
+	edassert_equal(curved25519_expected, csk[0], sizeof(curved25519_key), "curve25519 failed to generate correct value");
+
+	for (i = 0; i < 2048; i++) {
+		timeit(ed25519_publickey(dataset[0].sk, pk), pkticks)
+		edassert_equal_round(dataset[0].pk, pk, sizeof(pk), i, "public key didn't match");
+		timeit(ed25519_sign((unsigned char *)dataset[0].m, 0, dataset[0].sk, pk, sig), signticks)
+		edassert_equal_round(dataset[0].sig, sig, sizeof(sig), i, "signature didn't match");
+		timeit(res = ed25519_sign_open((unsigned char *)dataset[0].m, 0, pk, sig), openticks)
+		edassert(!res, 0, "failed to open message");
+		timeit(curved25519_scalarmult_basepoint(csk[1], csk[0]), curvedticks);
+	}
+
+	printf("%.0f ticks/public key generation\n", (double)pkticks);
+	printf("%.0f ticks/signature\n", (double)signticks);
+	printf("%.0f ticks/signature verification\n", (double)openticks);
+	printf("%.0f ticks/curve25519 basepoint scalarmult\n", (double)curvedticks);
+}
+
+int
+main(void) {
+	test_main();
+	test_batch();
+	return 0;
+}
+

external/secp256k1/include/secp256k1.h

@@ -541,7 +541,7 @@ SECP256K1_API int secp256k1_ecdsa_signature_serialize_compact(
 /** Verify an ECDSA signature.
  *
  *  Returns: 1: correct signature
- *           0: incorrect or unparsable signature
+ *           0: incorrect or unparseable signature
  *  Args:    ctx:       pointer to a context object
  *  In:      sig:       the signature being verified.
  *           msghash32: the 32-byte message hash being verified.

include/xrpl/basics/Archive.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_ARCHIVE_H_INCLUDED
-#define XRPL_BASICS_ARCHIVE_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2018 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_ARCHIVE_H_INCLUDED
+#define RIPPLE_BASICS_ARCHIVE_H_INCLUDED
 
 #include <boost/filesystem.hpp>
 

include/xrpl/basics/BasicConfig.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_BASICCONFIG_H_INCLUDED
-#define XRPL_BASICS_BASICCONFIG_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_BASICCONFIG_H_INCLUDED
+#define RIPPLE_BASICS_BASICCONFIG_H_INCLUDED
 
 #include <xrpl/basics/contract.h>
 

include/xrpl/basics/Blob.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_BLOB_H_INCLUDED
-#define XRPL_BASICS_BLOB_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_BLOB_H_INCLUDED
+#define RIPPLE_BASICS_BLOB_H_INCLUDED
 
 #include <vector>
 

include/xrpl/basics/Buffer.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_BUFFER_H_INCLUDED
-#define XRPL_BASICS_BUFFER_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_BUFFER_H_INCLUDED
+#define RIPPLE_BASICS_BUFFER_H_INCLUDED
 
 #include <xrpl/basics/Slice.h>
 #include <xrpl/beast/utility/instrumentation.h>

include/xrpl/basics/ByteUtilities.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_BYTEUTILITIES_H_INCLUDED
-#define XRPL_BASICS_BYTEUTILITIES_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2018 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_BYTEUTILITIES_H_INCLUDED
+#define RIPPLE_BASICS_BYTEUTILITIES_H_INCLUDED
 
 namespace ripple {
 

include/xrpl/basics/CompressionAlgorithms.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_COMPRESSIONALGORITHMS_H_INCLUDED
-#define XRPL_COMPRESSIONALGORITHMS_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2020 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLED_COMPRESSIONALGORITHMS_H_INCLUDED
+#define RIPPLED_COMPRESSIONALGORITHMS_H_INCLUDED
 
 #include <xrpl/basics/contract.h>
 
@@ -146,4 +165,4 @@ lz4Decompress(
 
 }  // namespace ripple
 
-#endif  // XRPL_COMPRESSIONALGORITHMS_H_INCLUDED
+#endif  // RIPPLED_COMPRESSIONALGORITHMS_H_INCLUDED

include/xrpl/basics/CountedObject.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_COUNTEDOBJECT_H_INCLUDED
-#define XRPL_BASICS_COUNTEDOBJECT_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_COUNTEDOBJECT_H_INCLUDED
+#define RIPPLE_BASICS_COUNTEDOBJECT_H_INCLUDED
 
 #include <xrpl/beast/type_name.h>
 

include/xrpl/basics/DecayingSample.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_DECAYINGSAMPLE_H_INCLUDED
-#define XRPL_BASICS_DECAYINGSAMPLE_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_DECAYINGSAMPLE_H_INCLUDED
+#define RIPPLE_BASICS_DECAYINGSAMPLE_H_INCLUDED
 
 #include <chrono>
 #include <cmath>

include/xrpl/basics/Expected.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_EXPECTED_H_INCLUDED
-#define XRPL_BASICS_EXPECTED_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2021 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_EXPECTED_H_INCLUDED
+#define RIPPLE_BASICS_EXPECTED_H_INCLUDED
 
 #include <xrpl/basics/contract.h>
 
@@ -234,4 +253,4 @@ public:
 
 }  // namespace ripple
 
-#endif  // XRPL_BASICS_EXPECTED_H_INCLUDED
+#endif  // RIPPLE_BASICS_EXPECTED_H_INCLUDED

include/xrpl/basics/FileUtilities.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_FILEUTILITIES_H_INCLUDED
-#define XRPL_BASICS_FILEUTILITIES_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2018 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_FILEUTILITIES_H_INCLUDED
+#define RIPPLE_BASICS_FILEUTILITIES_H_INCLUDED
 
 #include <boost/filesystem.hpp>
 #include <boost/system/error_code.hpp>

include/xrpl/basics/IntrusivePointer.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_INTRUSIVEPOINTER_H_INCLUDED
-#define XRPL_BASICS_INTRUSIVEPOINTER_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2023 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_INTRUSIVEPOINTER_H_INCLUDED
+#define RIPPLE_BASICS_INTRUSIVEPOINTER_H_INCLUDED
 
 #include <concepts>
 #include <cstdint>

include/xrpl/basics/IntrusivePointer.ipp

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_INTRUSIVEPOINTER_IPP_INCLUDED
-#define XRPL_BASICS_INTRUSIVEPOINTER_IPP_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2023 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_INTRUSIVEPOINTER_IPP_INCLUDED
+#define RIPPLE_BASICS_INTRUSIVEPOINTER_IPP_INCLUDED
 
 #include <xrpl/basics/IntrusivePointer.h>
 #include <xrpl/basics/IntrusiveRefCounts.h>

include/xrpl/basics/IntrusiveRefCounts.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_INTRUSIVEREFCOUNTS_H_INCLUDED
-#define XRPL_BASICS_INTRUSIVEREFCOUNTS_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2023 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_INTRUSIVEREFCOUNTS_H_INCLUDED
+#define RIPPLE_BASICS_INTRUSIVEREFCOUNTS_H_INCLUDED
 
 #include <xrpl/beast/utility/instrumentation.h>
 

include/xrpl/basics/KeyCache.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_KEYCACHE_H
-#define XRPL_BASICS_KEYCACHE_H
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2021 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_KEYCACHE_H
+#define RIPPLE_BASICS_KEYCACHE_H
 
 #include <xrpl/basics/TaggedCache.h>
 #include <xrpl/basics/base_uint.h>
@@ -10,4 +29,4 @@ using KeyCache = TaggedCache<uint256, int, true>;
 
 }  // namespace ripple
 
-#endif  // XRPL_BASICS_KEYCACHE_H
+#endif  // RIPPLE_BASICS_KEYCACHE_H

include/xrpl/basics/LocalValue.h

@@ -1,5 +1,24 @@
-#ifndef XRPL_BASICS_LOCALVALUE_H_INCLUDED
-#define XRPL_BASICS_LOCALVALUE_H_INCLUDED
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#ifndef RIPPLE_BASICS_LOCALVALUE_H_INCLUDED
+#define RIPPLE_BASICS_LOCALVALUE_H_INCLUDED
 
 #include <boost/thread/tss.hpp>