diff options
Diffstat (limited to 'libgo/go/crypto/cipher/cfb_test.go')
-rw-r--r-- | libgo/go/crypto/cipher/cfb_test.go | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/libgo/go/crypto/cipher/cfb_test.go b/libgo/go/crypto/cipher/cfb_test.go new file mode 100644 index 000000000..9547bfceb --- /dev/null +++ b/libgo/go/crypto/cipher/cfb_test.go @@ -0,0 +1,35 @@ +// 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 cipher + +import ( + "bytes" + "crypto/aes" + "crypto/rand" + "testing" +) + +func TestCFB(t *testing.T) { + block, err := aes.NewCipher(commonKey128) + if err != nil { + t.Error(err) + return + } + + plaintext := []byte("this is the plaintext") + iv := make([]byte, block.BlockSize()) + rand.Reader.Read(iv) + cfb := NewCFBEncrypter(block, iv) + ciphertext := make([]byte, len(plaintext)) + cfb.XORKeyStream(ciphertext, plaintext) + + cfbdec := NewCFBDecrypter(block, iv) + plaintextCopy := make([]byte, len(plaintext)) + cfbdec.XORKeyStream(plaintextCopy, ciphertext) + + if !bytes.Equal(plaintextCopy, plaintext) { + t.Errorf("got: %x, want: %x", plaintextCopy, plaintext) + } +} |