/usr/share/gocode/src/golang.org/x/crypto/openpgp/packet/ocfb_test.go is in golang-golang-x-crypto-dev 1:0.0~git20170407.0.55a552f+REALLY.0.0~git20161012.0.5f31782-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | // Copyright 2010 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.
package packet
import (
"bytes"
"crypto/aes"
"crypto/rand"
"testing"
)
var commonKey128 = []byte{0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c}
func testOCFB(t *testing.T, resync OCFBResyncOption) {
block, err := aes.NewCipher(commonKey128)
if err != nil {
t.Error(err)
return
}
plaintext := []byte("this is the plaintext, which is long enough to span several blocks.")
randData := make([]byte, block.BlockSize())
rand.Reader.Read(randData)
ocfb, prefix := NewOCFBEncrypter(block, randData, resync)
ciphertext := make([]byte, len(plaintext))
ocfb.XORKeyStream(ciphertext, plaintext)
ocfbdec := NewOCFBDecrypter(block, prefix, resync)
if ocfbdec == nil {
t.Errorf("NewOCFBDecrypter failed (resync: %t)", resync)
return
}
plaintextCopy := make([]byte, len(plaintext))
ocfbdec.XORKeyStream(plaintextCopy, ciphertext)
if !bytes.Equal(plaintextCopy, plaintext) {
t.Errorf("got: %x, want: %x (resync: %t)", plaintextCopy, plaintext, resync)
}
}
func TestOCFB(t *testing.T) {
testOCFB(t, OCFBNoResync)
testOCFB(t, OCFBResync)
}
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