Go implementation of SipHash-2-4, a fast short-input PRF created by Jean-Philippe Aumasson and Daniel J. Bernstein (http://131002.net/siphash/). INSTALLATION $ go get github.com/dchest/siphash USAGE import "github.com/dchest/siphash" There are two ways to use this package. The slower one is to use the standard hash.Hash64 interface: h := siphash.New(key) h.Write([]byte("Hello")) sum := h.Sum(nil) // returns 8-byte []byte or sum64 := h.Sum64() // returns uint64 The faster one is to use Hash() function, which takes two uint64 parts of 16-byte key and a byte slice, and returns uint64 hash: sum64 := siphash.Hash(key0, key1, []byte("Hello")) The keys and output are little-endian. FUNCTIONS func Hash(k0, k1 uint64, p []byte) uint64 Hash returns the 64-bit SipHash-2-4 of the given byte slice with two 64-bit parts of 128-bit key: k0 and k1. func New(key []byte) hash.Hash64 New returns a new hash.Hash64 computing SipHash-2-4 with 16-byte key. PUBLIC DOMAIN DEDICATION Written in 2012 by Dmitry Chestnykh. To the extent possible under law, the author have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty. http://creativecommons.org/publicdomain/zero/1.0/