The BLAKE2b hash algorithm

BLAKE2b is a fast cryptographic hash function described in RFC 7963. BLAKE2b can be directly keyed, making it functionally equivalent to a Message Authentication Code (MAC).

Recommendation

This BLAKE2b implementation was submitted to the golang x/crypto repo. I recommend to use the official x/crypto/blake2b package if possible.

Installation

Install in your GOPATH: go get -u github.com/aead/blake2b

Performance

AMD64
Hardware: Intel i7-6500U 2.50GHz x 2
System: Linux Ubuntu 16.04 - kernel: 4.4.0-64-generic
Go version: 1.8.0

AVX2
name        speed           cpb
Write128-4  756MB/s ± 1%    3.15
Write1K-4   842MB/s ± 0%    2.83
Sum128-4    658MB/s ± 0%    3.62
Sum1K-4     825MB/s ± 0%    2.89

SSE4.1
name        speed           cpb
Write128-4  654MB/s ± 1%    3.65
Write1K-4   739MB/s ± 0%    3.23
Sum128-4    578MB/s ± 0%    4.12
Sum1K-4     728MB/s ± 0%    3.27