Russ Cox
5ea612d1eb
Make all our package sources use Go 1.17 gofmt format (adding //go:build lines). Not strictly necessary but will avoid spurious changes as files are edited. Part of //go:build change (#41184). See https://golang.org/design/draft-gobuild Change-Id: I70526bf588bf4078887e567795867ece785d666b Reviewed-on: https://go-review.googlesource.com/c/crypto/+/294415 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
33 lines
1.0 KiB
Go
33 lines
1.0 KiB
Go
// Copyright 2019 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
|
|
// +build amd64,!purego,gc
|
|
|
|
package salsa
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
)
|
|
|
|
func TestCounterOverflow(t *testing.T) {
|
|
in := make([]byte, 4096)
|
|
key := &[32]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5,
|
|
6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2}
|
|
for n, counter := range []*[16]byte{
|
|
&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0}, // zero counter
|
|
&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff}, // counter about to overflow 32 bits
|
|
&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 0xff, 0xff, 0xff, 0xff}, // counter above 32 bits
|
|
} {
|
|
out := make([]byte, 4096)
|
|
XORKeyStream(out, in, counter, key)
|
|
outGeneric := make([]byte, 4096)
|
|
genericXORKeyStream(outGeneric, in, counter, key)
|
|
if !bytes.Equal(out, outGeneric) {
|
|
t.Errorf("%d: assembly and go implementations disagree", n)
|
|
}
|
|
}
|
|
}
|