#blake2b #blake2 #blake2bp

blake2b_simd

a pure Rust BLAKE2b implementation with dynamic SIMD

23 releases

0.5.11 Nov 2, 2020
0.5.10 Jan 5, 2020
0.5.9 Nov 7, 2019
0.5.5 Jul 22, 2019
0.4.1 Oct 26, 2018

#2 in Hardware support

Download history 41314/week @ 2020-08-07 40490/week @ 2020-08-14 46179/week @ 2020-08-21 42756/week @ 2020-08-28 41864/week @ 2020-09-04 45084/week @ 2020-09-11 45208/week @ 2020-09-18 46724/week @ 2020-09-25 48081/week @ 2020-10-02 48521/week @ 2020-10-09 47035/week @ 2020-10-16 53048/week @ 2020-10-23 51735/week @ 2020-10-30 53410/week @ 2020-11-06 55019/week @ 2020-11-13 50513/week @ 2020-11-20

194,305 downloads per month
Used in 231 crates (39 directly)

MIT license

145KB
3K SLoC

blake2b_simd GitHub crates.io Actions 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

~87KB