Custom fork of rust-secp256k1 with unsafe modifications for higher speed. Unsuitable for production.
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Andrew Poelstra dc90a43e68
Merge rust-bitcoin/rust-secp256k1#403: `Parity` conversion and error handling cleanup
5acf6d23d3 `Parity` conversion and error handling cleanup (Martin Habovstiak)

Pull request description:

  This removes the deprecated `From` conversion, replaces it with
  `TryFrom`, and adds more convenience conversions. A new error type is
  created for the invalid parity error with conversion to catch-all
  `Error`.

  This is intended for an API-breaking version.

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  apoelstra:
    ACK 5acf6d23d3

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.github/workflows disable illumos and netbsd 2021-10-28 12:10:46 +02:00
contrib Enable running tests without default features 2022-02-01 15:20:44 +11:00
examples Move `Signature` and `SerializedSignature` to new `ecdsa` module 2021-11-11 13:43:48 +11:00
no_std_test Separate new_with_hash into public function 2022-02-18 09:51:06 +00:00
secp256k1-sys Add custom Debug impl for RecoverableSignature 2022-02-08 08:14:30 +00:00
src Merge rust-bitcoin/rust-secp256k1#403: `Parity` conversion and error handling cleanup 2022-03-01 13:01:15 +00:00
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CHANGELOG.md bump version to 0.21.3 2022-02-17 17:20:41 +00:00
Cargo.toml Merge rust-bitcoin/rust-secp256k1#390: bump version to 0.21.3 2022-02-23 18:45:12 +00:00
LICENSE Remove the MIT/CC0 license in favor of just CC0 2015-03-25 18:36:30 -05:00
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README.md

Build Status

Full documentation

rust-secp256k1

rust-secp256k1 is a wrapper around libsecp256k1, a C library by Pieter Wuille for producing ECDSA signatures using the SECG curve secp256k1. This library

  • exposes type-safe Rust bindings for all libsecp256k1 functions
  • implements key generation
  • implements deterministic nonce generation via RFC6979
  • implements many unit tests, adding to those already present in libsecp256k1
  • makes no allocations (except in unit tests) for efficiency and use in freestanding implementations

Contributing

Contributions to this library are welcome. A few guidelines:

  • Any breaking changes must have an accompanied entry in CHANGELOG.md
  • No new dependencies, please.
  • No crypto should be implemented in Rust, with the possible exception of hash functions. Cryptographic contributions should be directed upstream to libsecp256k1.
  • This library should always compile with any combination of features on Rust 1.29.

A note on Rust 1.29 support

The build dependency cc might require a more recent version of the Rust compiler. To ensure compilation with Rust 1.29.0, pin its version in your Cargo.lock with cargo update -p cc --precise 1.0.41. If you're using secp256k1 in a library, to make sure it compiles in CI, you'll need to generate a lockfile first. Example for Travis CI:

before_script:
  - if [ "$TRAVIS_RUST_VERSION" == "1.29.0" ]; then
    cargo generate-lockfile --verbose && cargo update -p cc --precise "1.0.41" --verbose;
    fi

Fuzzing

If you want to fuzz this library, or any library which depends on it, you will probably want to disable the actual cryptography, since fuzzers are unable to forge signatures and therefore won't test many interesting codepaths. To instead use a trivially-broken but fuzzer-accessible signature scheme, compile with --cfg=fuzzing in your RUSTFLAGS variable.

Note that cargo hfuzz sets this config flag automatically.