#simd #blake2b #dynamic

blake2b_simd

a pure Rust BLAKE2b implementation with dynamic SIMD

18 releases

✓ Uses Rust 2018 edition

0.5.6 Aug 1, 2019
0.5.5 Jul 22, 2019
0.5.3 Jun 22, 2019
0.4.1 Oct 26, 2018
Download history 539/week @ 2019-04-18 519/week @ 2019-04-25 499/week @ 2019-05-02 662/week @ 2019-05-09 923/week @ 2019-05-16 1085/week @ 2019-05-23 1144/week @ 2019-05-30 937/week @ 2019-06-06 845/week @ 2019-06-13 1152/week @ 2019-06-20 1012/week @ 2019-06-27 1178/week @ 2019-07-04 1123/week @ 2019-07-11 840/week @ 2019-07-18 883/week @ 2019-07-25

4,082 downloads per month
Used in 1,098 crates (16 directly)

MIT license

143KB
3K SLoC

blake2b_simd GitHub crates.io Build Status

An implementation of the BLAKE2b and BLAKE2bp hash functions. See also blake2s_simd.

This crate includes:

  • 100% stable Rust.
  • SIMD implementations based on Samuel Neves' blake2-avx2. These are very fast. For benchmarks, see the Performance section of the README.
  • Portable, safe implementations for other platforms.
  • Dynamic CPU feature detection. Binaries include multiple implementations by default and choose the fastest one the processor supports at runtime.
  • All the features from the the BLAKE2 spec, like adjustable length, keying, and associated data for tree hashing.
  • no_std support. The std Cargo feature is on by default, for CPU feature detection and for implementing std::io::Write.
  • Support for computing multiple BLAKE2b hashes in parallel, matching the efficiency of BLAKE2bp. See the many module.

Example

use blake2b_simd::{blake2b, Params};

let expected = "ca002330e69d3e6b84a46a56a6533fd79d51d97a3bb7cad6c2ff43b354185d6d\
                c1e723fb3db4ae0737e120378424c714bb982d9dc5bbd7a0ab318240ddd18f8d";
let hash = blake2b(b"foo");
assert_eq!(expected, &hash.to_hex());

let hash = Params::new()
    .hash_length(16)
    .key(b"The Magic Words are Squeamish Ossifrage")
    .personal(b"L. P. Waterhouse")
    .to_state()
    .update(b"foo")
    .update(b"bar")
    .update(b"baz")
    .finalize();
assert_eq!("ee8ff4e9be887297cf79348dc35dab56", &hash.to_hex());

Dependencies

~85KB