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Andrew Chow 306157ae92
Merge bitcoin/bitcoin#27993: Make poly1305 support incremental computation + modernize 
4e5c933f6a Switch all callers from poly1305_auth to Poly1305 class (Pieter Wuille)
8871f7d1ae tests: add more Poly1305 test vectors (Pieter Wuille)
40e6c5b9fc crypto: add Poly1305 class with std::byte Span interface (Pieter Wuille)
50269b391f crypto: switch poly1305 to incremental implementation (Pieter Wuille)

Pull request description:

  Our current Poly1305 code (src/crypto/poly1305.*) only supports computing the entire tag in one go (the `poly1305_auth` function takes a key and message, and outputs the tag). However, the RFC8439 authenticated encryption (as used in BIP324, see #27634) scheme makes use of Poly1305 in a way where the message consists of 3 different pieces:
  * The additionally authenticated data (AAD), padded to 16 bytes.
  * The ciphertext, padded to 16 bytes.
  * The length of the AAD and the length of the ciphertext, together another 16 bytes.

  Implementing RFC8439 using the existing `poly1305_auth` function requires creating a temporary copy with all these pieces of data concatenated just for the purpose of computing the tag (the approach used in #25361).

  This PR replaces the poly1305 code with new code from https://github.com/floodyberry/poly1305-donna (with minor adjustments to make it match our coding style and use our utility functions, documented in the commit) which supports incremental operation, and then adds a C++ wrapper interface using std::byte Spans around it, and adds tests that incremental and all-at-once computation match.

ACKs for top commit:
  achow101:
    ACK 4e5c933f6a
  theStack:
    ACK 4e5c933f6a
  stratospher:
    tested ACK 4e5c933.

Tree-SHA512: df6e9a2a4a38a480f9e4360d3e3def5311673a727a4a85b008a084cf6843b260dc82cec7c73e1cecaaccbf10f3521a0ae7dba388b65d0b086770f7fbc5223e2a
2023-07-17 18:30:39 -04:00
.github github: Switch to yaml issue templates 2023-02-21 11:31:16 +00:00
.tx qt: Bump Transifex slug for 25.x 2023-02-27 14:01:14 +00:00
build-aux/m4 build: Bump minimum supported GCC to g++-9 2023-05-18 12:24:40 +02:00
build_msvc Enable ellswift module in libsecp256k1 2023-06-23 14:15:49 -04:00
ci ci: Add missing -O2 to valgrind tasks 2023-07-12 15:41:49 +02:00
contrib guix: backport glibc patch to prevent redundant librt link 2023-07-12 11:22:02 +01:00
depends build: support -no_fixup_chains in ld64 2023-06-29 11:55:40 +01:00
doc doc: describe 'init load' thread actions 2023-07-07 19:31:27 -03:00
share depends: Bump MacOS minimum runtime requirement to 11.0 2023-06-22 15:28:47 +00:00
src Merge bitcoin/bitcoin#27993: Make poly1305 support incremental computation + modernize 2023-07-17 18:30:39 -04:00
test Merge bitcoin/bitcoin#28088: test: Disable known broken USDT test 2023-07-17 15:04:49 +01:00
.cirrus.yml ci: Remove deprecated container.greedy 2023-07-04 10:41:25 +02:00
.editorconfig ci: Drop AppVeyor CI integration 2021-09-07 06:12:53 +03:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore refactor: cleanups post unsubtree'ing univalue 2022-06-15 12:56:44 +01:00
.python-version Bump python minimum version to 3.8 2023-04-21 10:18:19 +02:00
.style.yapf Update .style.yapf 2023-06-01 23:35:10 +05:30
autogen.sh build: make sure we can overwrite config.{guess,sub} 2023-06-13 14:58:43 +02:00
configure.ac Merge bitcoin/bitcoin#28069: guix: Remove librt usage from release binaries 2023-07-17 13:43:45 +01:00
CONTRIBUTING.md doc: Explain squashing with merge commits 2022-05-24 08:17:41 +02:00
COPYING doc: Update license year range to 2023 2022-12-24 11:40:16 +01:00
INSTALL.md doc: Added hyperlink for doc/build 2021-09-09 19:53:12 +05:30
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am build: package test_bitcoin in Windows installer 2022-08-09 09:13:23 +01:00
README.md doc: Explain Bitcoin Core in README.md 2022-05-10 07:49:09 +02:00
SECURITY.md doc: Add my key to SECURITY.md 2022-08-23 16:57:46 -04:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.

What is Bitcoin Core?

Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.

Further information about Bitcoin Core is available in the doc folder.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Bitcoin Core.

The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.