Files
crypto/salsa20/salsa/salsa20_amd64.go
T
Filippo Valsorda b7391e95e5 salsa20/salsa: fix keystream loop in amd64 assembly when overflowing 32-bit counter
Fixes golang/go#30965

Change-Id: I83a804d555c048e0124c35f95c9e611b2c5bdb01
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/436856
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/168406
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-03-20 22:39:03 +00:00

24 lines
769 B
Go

// 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
//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])
}