go.crypto: initial code
Manual edits to README.
Moved from main Go repository, deleted Makefiles, ran gofix -r go1rename.
Tested with: go test code.google.com/p/go.crypto/...
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5564059
diff --git a/ssh/cipher_test.go b/ssh/cipher_test.go
new file mode 100644
index 0000000..ea27bd8
--- /dev/null
+++ b/ssh/cipher_test.go
@@ -0,0 +1,62 @@
+// Copyright 2011 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 ssh
+
+import (
+ "bytes"
+ "testing"
+)
+
+// TestCipherReversal tests that each cipher factory produces ciphers that can
+// encrypt and decrypt some data successfully.
+func TestCipherReversal(t *testing.T) {
+ testData := []byte("abcdefghijklmnopqrstuvwxyz012345")
+ testKey := []byte("AbCdEfGhIjKlMnOpQrStUvWxYz012345")
+ testIv := []byte("sdflkjhsadflkjhasdflkjhsadfklhsa")
+
+ cryptBuffer := make([]byte, 32)
+
+ for name, cipherMode := range cipherModes {
+ encrypter, err := cipherMode.createCipher(testKey, testIv)
+ if err != nil {
+ t.Errorf("failed to create encrypter for %q: %s", name, err)
+ continue
+ }
+ decrypter, err := cipherMode.createCipher(testKey, testIv)
+ if err != nil {
+ t.Errorf("failed to create decrypter for %q: %s", name, err)
+ continue
+ }
+
+ copy(cryptBuffer, testData)
+
+ encrypter.XORKeyStream(cryptBuffer, cryptBuffer)
+ if name == "none" {
+ if !bytes.Equal(cryptBuffer, testData) {
+ t.Errorf("encryption made change with 'none' cipher")
+ continue
+ }
+ } else {
+ if bytes.Equal(cryptBuffer, testData) {
+ t.Errorf("encryption made no change with %q", name)
+ continue
+ }
+ }
+
+ decrypter.XORKeyStream(cryptBuffer, cryptBuffer)
+ if !bytes.Equal(cryptBuffer, testData) {
+ t.Errorf("decrypted bytes not equal to input with %q", name)
+ continue
+ }
+ }
+}
+
+func TestDefaultCiphersExist(t *testing.T) {
+ for _, cipherAlgo := range DefaultCipherOrder {
+ if _, ok := cipherModes[cipherAlgo]; !ok {
+ t.Errorf("default cipher %q is unknown", cipherAlgo)
+ }
+ }
+}
