// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build amd64 && !purego && gc package salsa //go:noescape // salsa2020XORKeyStream is implemented in salsa20_amd64.s. func salsa2020XORKeyStream(out, in *byte, n uint64, nonce, key *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 salsa20 counter bytes (both nonce and block counter). func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) { if len(in) == 0 { return } _ = out[len(in)-1] salsa2020XORKeyStream(&out[0], &in[0], uint64(len(in)), &counter[0], &key[0]) }