1 files changed, 131 insertions, 0 deletions
diff --git a/vendor/github.com/rsc/letsencrypt/vendor/gopkg.in/square/go-jose.v1/symmetric_test.go b/vendor/github.com/rsc/letsencrypt/vendor/gopkg.in/square/go-jose.v1/symmetric_test.go
new file mode 100644
index 000000000..67f535e3b
--- /dev/null
+++ b/vendor/github.com/rsc/letsencrypt/vendor/gopkg.in/square/go-jose.v1/symmetric_test.go
@@ -0,0 +1,131 @@
+/*-
+ * Copyright 2014 Square Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package jose
+
+import (
+	"bytes"
+	"crypto/cipher"
+	"crypto/rand"
+	"io"
+	"testing"
+)
+
+func TestInvalidSymmetricAlgorithms(t *testing.T) {
+	_, err := newSymmetricRecipient("XYZ", []byte{})
+	if err != ErrUnsupportedAlgorithm {
+		t.Error("should not accept invalid algorithm")
+	}
+
+	enc := &symmetricKeyCipher{}
+	_, err = enc.encryptKey([]byte{}, "XYZ")
+	if err != ErrUnsupportedAlgorithm {
+		t.Error("should not accept invalid algorithm")
+	}
+}
+
+func TestAeadErrors(t *testing.T) {
+	aead := &aeadContentCipher{
+		keyBytes:     16,
+		authtagBytes: 16,
+		getAead: func(key []byte) (cipher.AEAD, error) {
+			return nil, ErrCryptoFailure
+		},
+	}
+
+	parts, err := aead.encrypt([]byte{}, []byte{}, []byte{})
+	if err != ErrCryptoFailure {
+		t.Error("should handle aead failure")
+	}
+
+	_, err = aead.decrypt([]byte{}, []byte{}, parts)
+	if err != ErrCryptoFailure {
+		t.Error("should handle aead failure")
+	}
+}
+
+func TestInvalidKey(t *testing.T) {
+	gcm := newAESGCM(16).(*aeadContentCipher)
+	_, err := gcm.getAead([]byte{})
+	if err == nil {
+		t.Error("should not accept invalid key")
+	}
+}
+
+func TestStaticKeyGen(t *testing.T) {
+	key := make([]byte, 32)
+	io.ReadFull(rand.Reader, key)
+
+	gen := &staticKeyGenerator{key: key}
+	if gen.keySize() != len(key) {
+		t.Error("static key generator reports incorrect size")
+	}
+
+	generated, _, err := gen.genKey()
+	if err != nil {
+		t.Error("static key generator should always succeed", err)
+	}
+	if !bytes.Equal(generated, key) {
+		t.Error("static key generator returns different data")
+	}
+}
+
+func TestVectorsAESGCM(t *testing.T) {
+	// Source: http://tools.ietf.org/html/draft-ietf-jose-json-web-encryption-29#appendix-A.1
+	plaintext := []byte{
+		84, 104, 101, 32, 116, 114, 117, 101, 32, 115, 105, 103, 110, 32,
+		111, 102, 32, 105, 110, 116, 101, 108, 108, 105, 103, 101, 110, 99,
+		101, 32, 105, 115, 32, 110, 111, 116, 32, 107, 110, 111, 119, 108,
+		101, 100, 103, 101, 32, 98, 117, 116, 32, 105, 109, 97, 103, 105,
+		110, 97, 116, 105, 111, 110, 46}
+
+	aad := []byte{
+		101, 121, 74, 104, 98, 71, 99, 105, 79, 105, 74, 83, 85, 48, 69,
+		116, 84, 48, 70, 70, 85, 67, 73, 115, 73, 109, 86, 117, 89, 121, 73,
+		54, 73, 107, 69, 121, 78, 84, 90, 72, 81, 48, 48, 105, 102, 81}
+
+	expectedCiphertext := []byte{
+		229, 236, 166, 241, 53, 191, 115, 196, 174, 43, 73, 109, 39, 122,
+		233, 96, 140, 206, 120, 52, 51, 237, 48, 11, 190, 219, 186, 80, 111,
+		104, 50, 142, 47, 167, 59, 61, 181, 127, 196, 21, 40, 82, 242, 32,
+		123, 143, 168, 226, 73, 216, 176, 144, 138, 247, 106, 60, 16, 205,
+		160, 109, 64, 63, 192}
+
+	expectedAuthtag := []byte{
+		92, 80, 104, 49, 133, 25, 161, 215, 173, 101, 219, 211, 136, 91, 210, 145}
+
+	// Mock random reader
+	randReader = bytes.NewReader([]byte{
+		177, 161, 244, 128, 84, 143, 225, 115, 63, 180, 3, 255, 107, 154,
+		212, 246, 138, 7, 110, 91, 112, 46, 34, 105, 47, 130, 203, 46, 122,
+		234, 64, 252, 227, 197, 117, 252, 2, 219, 233, 68, 180, 225, 77, 219})
+	defer resetRandReader()
+
+	enc := newAESGCM(32)
+	key, _, _ := randomKeyGenerator{size: 32}.genKey()
+	out, err := enc.encrypt(key, aad, plaintext)
+	if err != nil {
+		t.Error("Unable to encrypt:", err)
+		return
+	}
+
+	if bytes.Compare(out.ciphertext, expectedCiphertext) != 0 {
+		t.Error("Ciphertext did not match")
+	}
+	if bytes.Compare(out.tag, expectedAuthtag) != 0 {
+		t.Error("Auth tag did not match")
+	}
+}