mirror of
https://github.com/XRPLF/rippled.git
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115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2025 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_PROTOCOL_CONFIDENTIALTRANSFER_H_INCLUDED
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#define RIPPLE_PROTOCOL_CONFIDENTIALTRANSFER_H_INCLUDED
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#include <xrpl/basics/Slice.h>
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#include <xrpl/protocol/Indexes.h>
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#include <xrpl/protocol/MPTIssue.h>
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#include <xrpl/protocol/Protocol.h>
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#include <xrpl/protocol/Rate.h>
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#include <xrpl/protocol/STLedgerEntry.h>
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#include <xrpl/protocol/STObject.h>
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#include <xrpl/protocol/Serializer.h>
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#include <xrpl/protocol/TER.h>
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#include <xrpl/protocol/detail/secp256k1.h>
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#include <secp256k1.h>
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namespace ripple {
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SECP256K1_API int
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secp256k1_elgamal_generate_keypair(
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secp256k1_context const* ctx,
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unsigned char* privkey,
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secp256k1_pubkey* pubkey);
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SECP256K1_API int
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secp256k1_elgamal_encrypt(
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secp256k1_context const* ctx,
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secp256k1_pubkey* c1,
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secp256k1_pubkey* c2,
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secp256k1_pubkey const* pubkey_Q,
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uint64_t amount,
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unsigned char const* blinding_factor);
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SECP256K1_API int
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secp256k1_elgamal_decrypt(
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secp256k1_context const* ctx,
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uint64_t* amount,
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secp256k1_pubkey const* c1,
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secp256k1_pubkey const* c2,
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unsigned char const* privkey);
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SECP256K1_API int
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secp256k1_elgamal_add(
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secp256k1_context const* ctx,
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secp256k1_pubkey* sum_c1,
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secp256k1_pubkey* sum_c2,
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secp256k1_pubkey const* a_c1,
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secp256k1_pubkey const* a_c2,
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secp256k1_pubkey const* b_c1,
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secp256k1_pubkey const* b_c2);
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SECP256K1_API int
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secp256k1_elgamal_subtract(
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secp256k1_context const* ctx,
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secp256k1_pubkey* diff_c1,
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secp256k1_pubkey* diff_c2,
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secp256k1_pubkey const* a_c1,
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secp256k1_pubkey const* a_c2,
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secp256k1_pubkey const* b_c1,
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secp256k1_pubkey const* b_c2);
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// breaks a 66-byte encrypted amount into two 33-byte components
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// then parses each 33-byte component into 64-byte secp256k1_pubkey format
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bool
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makeEcPair(Slice const& buffer, secp256k1_pubkey& out1, secp256k1_pubkey& out2);
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// serialize two secp256k1_pubkey components back into compressed 66-byte form
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bool
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serializeEcPair(
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secp256k1_pubkey const& in1,
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secp256k1_pubkey const& in2,
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Buffer& buffer);
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TER
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homomorphicAdd(Slice const& a, Slice const& b, Buffer& out);
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TER
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proveEquality(
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Slice const& proof,
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Slice const& encAmt, // encrypted amount
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Slice const& pubkey,
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uint64_t const amount,
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uint256 const& txHash, // Transaction context data
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std::uint32_t const spendVersion);
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TER
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encryptAmount(
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AccountID const& account,
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uint64_t amt,
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Slice const& pubKeySlice,
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Buffer& out);
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} // namespace ripple
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#endif
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