e25de33e7b
fa54d3011ed0cbb7bcdc76548423ba41f0042832 test: check for false-positives in rpc_scanblocks.py (Sebastian Falbesoner) 3bca6cd61a8cd677023f18c146f2a6534829b1c7 test: add compact block filter (BIP158) helper routines (Sebastian Falbesoner) 25ee74dd11401ce2bfb0b24c4ce70578c5b99e51 test: add SipHash implementation for generic data in Python (Sebastian Falbesoner) Pull request description: This PR adds a fixed false-positive element check to the functional test rpc_scanblocks.py by using a pre-calculated scriptPubKey that collides with the regtest genesis block's coinbase output. Note that determining a BIP158 false-positive at runtime would also be possible, but take too long (we'd need to create and check ~800k output scripts on average, which took at least 2 minutes on average on my machine). The introduced check is related to issue #26322 and more concretely inspired by PR #26325 which introduces an "accurate" mode that filters out these false-positives. The introduced cryptography routines (siphash for generic data) and helpers (BIP158 ranged hash calculation, relevant scriptPubKey per block determination) could potentially also be useful for more tests in the future that involve compact block filters. ACKs for top commit: achow101: ACK fa54d3011ed0cbb7bcdc76548423ba41f0042832 Tree-SHA512: c6af50864146028228d197fb022ba2ff24d1ef48dc7d171bccfb21e62dd50ac80db5fae0c53f5d205edabd48b3493c7aa2040f628a223e68df086ec2243e5a93
Bitcoin Core integration/staging tree
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.