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