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// Copyright 2021 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 ppc64le
package cipher_test
import (
"bytes"
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"testing"
"time"
)
var cbcAESFuzzTests = []struct {
name string
key []byte
}{
{
"CBC-AES128",
commonKey128,
},
{
"CBC-AES192",
commonKey192,
},
{
"CBC-AES256",
commonKey256,
},
}
var timeout *time.Timer
const datalen = 1024
func TestFuzz(t *testing.T) {
for _, ft := range cbcAESFuzzTests {
c, _ := aes.NewCipher(ft.key)
cbcAsm := cipher.NewCBCEncrypter(c, commonIV)
cbcGeneric := cipher.NewCBCGenericEncrypter(c, commonIV)
if testing.Short() {
timeout = time.NewTimer(10 * time.Millisecond)
} else {
timeout = time.NewTimer(2 * time.Second)
}
indata := make([]byte, datalen)
outgeneric := make([]byte, datalen)
outdata := make([]byte, datalen)
fuzzencrypt:
for {
select {
case <-timeout.C:
break fuzzencrypt
default:
}
rand.Read(indata[:])
cbcGeneric.CryptBlocks(indata, outgeneric)
cbcAsm.CryptBlocks(indata, outdata)
if !bytes.Equal(outdata, outgeneric) {
t.Fatalf("AES-CBC encryption does not match reference result: %x and %x, please report this error to security@golang.org", outdata, outgeneric)
}
}
cbcAsm = cipher.NewCBCDecrypter(c, commonIV)
cbcGeneric = cipher.NewCBCGenericDecrypter(c, commonIV)
if testing.Short() {
timeout = time.NewTimer(10 * time.Millisecond)
} else {
timeout = time.NewTimer(2 * time.Second)
}
fuzzdecrypt:
for {
select {
case <-timeout.C:
break fuzzdecrypt
default:
}
rand.Read(indata[:])
cbcGeneric.CryptBlocks(indata, outgeneric)
cbcAsm.CryptBlocks(indata, outdata)
if !bytes.Equal(outdata, outgeneric) {
t.Fatalf("AES-CBC decryption does not match reference result: %x and %x, please report this error to security@golang.org", outdata, outgeneric)
}
}
}
}