Hulk did something

[bytom/vapor.git] / vendor / golang.org / x / crypto / openpgp / packet / ocfb_test.go

diff --git a/vendor/golang.org/x/crypto/openpgp/packet/ocfb_test.go b/vendor/golang.org/x/crypto/openpgp/packet/ocfb_test.go
new file mode 100644 (file)
index 0000000..91022c0
--- /dev/null
+++ b/vendor/golang.org/x/crypto/openpgp/packet/ocfb_test.go
@@ -0,0 +1,46 @@
+// 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)
+}