#simd #blake2b #dynamic

blake2b_simd

a pure Rust BLAKE2b implementation with dynamic SIMD

22 releases

✓ Uses Rust 2018 edition

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

#258 in Hardware support

Download history 28131/week @ 2019-12-02 27621/week @ 2019-12-09 27396/week @ 2019-12-16 13667/week @ 2019-12-23 16031/week @ 2019-12-30 36000/week @ 2020-01-06 34317/week @ 2020-01-13 32552/week @ 2020-01-20 32652/week @ 2020-01-27 31642/week @ 2020-02-03 28893/week @ 2020-02-10 30266/week @ 2020-02-17 28127/week @ 2020-02-24 27583/week @ 2020-03-02 31360/week @ 2020-03-09 30478/week @ 2020-03-16

96,349 downloads per month
Used in 1,994 crates (25 directly)

MIT license

145KB
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

~86KB