Caching the base58check encoded version of an `AccountID` has
performance advantages, because because of the computationally
heavy cost associated with the conversion, which requires the
application of SHA-256 twice.
This commit makes the cache significantly more efficient in terms
of memory used: it eliminates the map, using a vector with a size
that is determined by the configured size of the node, and a hash
function to directly map any given `AccountID` to a specific slot
in the cache; the eviction policy is simple: in case of collision
the existing entry is removed and replaced with the new data.
Previously, use of the cache was optional and required additional
effort by the programmer. Now the cache is automatic and does not
require any additional work or information.
The new cache also utilizes a 64-way spinlock, to help reduce any
contention that the pressure on the cache would impose.
- Simplify and consolidate code for parsing hex input.
- Replace beast::endian::order with boost::endian::order.
- Simplify CountedObject code.
- Remove pre-C++17 workarounds in favor of C++17 based solutions.
- Improve `base_uint` and simplify its hex-parsing interface by
consolidating the `SexHex` and `SetHexExact` methods into one
API: `parseHex` which forces callers to verify the result of
the operation; as a result some public-facing API endpoints
may now return errors when passed values that were previously
accepted.
- Remove the simple fallback implementations of SHA2 and RIPEMD
introduced to reduce our dependency on OpenSSL. The code is
slow and rarely, if ever, exercised and we rely on OpenSSL
functionality for Boost.ASIO as well.
Use C++17 constant expressions to calculate the inverse
alphabet map at compile time instead of at runtime.
Remove support for encoding & decoding tokens using the
Bitcoin alphabet.
* Add construction and assignment from a generic
contiguous container. Both compile-time and run time
safety checks are made to ensure the safety of this
conversion.
* Remove base_uint::copyFrom. The generic copy assignment
operator now does this functionality with enhanced
safety and better syntax.
* Remove construction from and dedendence on Blob.
The generic constructor and assignment now handle this
functionality.
* Fix client code to adhere to this new API.
* Removed the use of fromVoid in PeerImp.cpp as it was
an inappropriate use of this dangerous API. The
generic container constructors do it with enhanced
safety and better syntax.
* Rename data member pn to data_ and make it private.
* Remove constraint from hash_append
* Remove array_type alias
* RIPD-1617, RIPD-1619, RIPD-1621:
Verify serialized public keys more strictly before
using them.
* RIPD-1618:
* Simplify the base58 decoder logic.
* Reduce the complexity of the base58 encoder and
eliminate a potential out-of-bounds memory access.
* Improve type safety by using an `enum class` to
enforce strict type checking for token types.
* RIPD-1616:
Avoid calling `memcpy` with a null pointer even if the
size is specified as zero, since it results in undefined
behavior.
Acknowledgements:
Ripple thanks Guido Vranken for responsibly disclosing these
issues.
Bug Bounties and Responsible Disclosures:
We welcome reviews of the rippled code and urge researchers
to responsibly disclose any issues that they may find. For
more on Ripple's Bug Bounty program, please visit:
https://ripple.com/bug-bounty
* Updates many (but probably not all) locations that access base_uint
private storage.
* More calls to access base_uint through members.
* Use an iterator to write Serializer collections.
All AccountID functionality is removed from RippleAddress and
replaced with free functions. The AccountID to string conversion
cache is factored out as an explicit type with an instance in
the Application object. New base58 conversion functions are used,
with no dependence on OpenSSL.
All types and free functions related to AccountID are consolidated
into one header file. Routines to operate on "tokens" are also
introduced and consolidated into a single header file.
A token one of the cryptographic primitives used in Ripple:
Secret Seed
Server Public Key
Server Secret Key
Account ID
Account Public Key
Account Private Key
and these deprecated primitives:
Account Family Seed
Account Family Generator
