| // 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. |
| |
| // +build amd64,!appengine,!gccgo |
| |
| package salsa |
| |
| // This function is implemented in salsa2020_amd64.s. |
| |
| //go:noescape |
| |
| 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 may be the same slice but otherwise should not overlap. 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 |
| } |
| salsa2020XORKeyStream(&out[0], &in[0], uint64(len(in)), &counter[0], &key[0]) |
| } |
