8869f35a69
Manually implement it for Wtxid, Txid and BlockHash, where the all-zero "hash" has a consensus meaning. But in general we should not be implementing this method unless we have a good reason to do so. It can be emulated or implemeted in terms of from_byte_array. The use of Wtxid::all_zeros is obscure and specific enough that I am tempted to drop it. But for txid and blockhash, the 0 hash appears in actual blockdata and we should keep it. All other uses of all_zeros were either in test code or in places where the specific hash was not important and [u8; 32] was a more appropriate type. |
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| contrib | ||
| embedded | ||
| extended_tests/schemars | ||
| src | ||
| tests | ||
| CHANGELOG.md | ||
| Cargo.toml | ||
| README.md | ||
README.md
Bitcoin Hashes Library
This is a simple, no-dependency library which implements the hash functions needed by Bitcoin. These are SHA1, SHA256, SHA256d, SHA512, and RIPEMD160. As an ancillary thing, it exposes hexadecimal serialization and deserialization, since these are needed to display hashes anway.
Minimum Supported Rust Version (MSRV)
This library should always compile with any combination of features on Rust 1.56.1.
Contributions
Contributions are welcome, including additional hash function implementations.
Githooks
To assist devs in catching errors before running CI we provide some githooks. If you do not already have locally configured githooks you can use the ones in this repository by running, in the root directory of the repository:
git config --local core.hooksPath githooks/
Alternatively add symlinks in your .git/hooks directory to any of the githooks we provide.
Running Benchmarks
We use a custom Rust compiler configuration conditional to guard the bench mark code. To run the
bench marks use: RUSTFLAGS='--cfg=bench' cargo +nightly bench.