fanquake f2e6d14430
Merge #20147: Update libsecp256k1 (endomorphism, test improvements)
52380bf304b1c02dda23f1e2fad0159e29b2f7a2 Squashed 'src/secp256k1/' changes from 8ab24e8dad..c6b6b8f1bb (Pieter Wuille)

Pull request description:

  This updates the libsecp256k1 subtree to the latest master, which includes:

  * Enabling the GLV endomorphism optimization by default (and removing support for the non-GLV EC multiplication)
  * Added a proof for the correctness of the lambda split algorithm by roconnor-blockstream (other code was relying on the fact that it always outputs 128 bit results, which isn't at all obvious).
  * Improved exhaustive tests, in particular for the Schnorr signature module
  * Various other testing and CI improvements

ACKs for top commit:
  fanquake:
    ACK 9e5626d2a8ddbbd7640ff53f89f3a7021d747633 - performed a squash and checked that the changes were the same. The non-endomorphism code has now been ripped out.
  benthecarman:
    ACK 9e5626d

Tree-SHA512: 50fda5f3f934ee525f01cfc15e4f5efbc5261a97f2b77fe1b3453ee0edcf1281ad74ab4532a2fe1fe907652dd47023beff8cf3d73bf34f65ac914a694b9e7110
2020-10-15 11:27:47 +08:00
2020-10-01 22:19:11 +02:00
2020-09-14 16:35:09 +08:00
2020-04-14 16:38:26 +00:00
2019-12-26 23:11:21 +01:00

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

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, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes 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.

Translators should also subscribe to the mailing list.

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Bitcoin Core integration/staging tree
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