chacha20

Documentation

Overview

Package ChaCha20 implements the core ChaCha20 function as specified in https://tools.ietf.org/html/rfc7539#section-2.3.

Index

• func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte)

Functions

func XORKeyStream

func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte)

XORKeyStream crypts bytes from in to out using the given key and counters. In and out must overlap entirely or not at all. Counter contains the raw ChaCha20 counter bytes (i.e. block counter followed by nonce).