1 /* ====================================================================
2 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
20 *
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
25 *
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
29 *
30 * 6. Redistributions of any form whatsoever must retain the following
31 * acknowledgment:
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ==================================================================== */
48
49 /* Per C99, various stdint.h and inttypes.h macros (the latter used by
50 * internal.h) are unavailable in C++ unless some macros are defined. C++11
51 * overruled this decision, but older Android NDKs still require it. */
52 #if !defined(__STDC_CONSTANT_MACROS)
53 #define __STDC_CONSTANT_MACROS
54 #endif
55
56 #include <stdio.h>
57 #include <string.h>
58
59 #include <vector>
60
61 #include <gtest/gtest.h>
62
63 #include <openssl/aes.h>
64
65 #include "internal.h"
66 #include "../../test/file_test.h"
67 #include "../../test/test_util.h"
68
69
TEST(GCMTest,TestVectors)70 TEST(GCMTest, TestVectors) {
71 FileTestGTest("crypto/fipsmodule/modes/gcm_tests.txt", [](FileTest *t) {
72 std::vector<uint8_t> key, plaintext, additional_data, nonce, ciphertext,
73 tag;
74 ASSERT_TRUE(t->GetBytes(&key, "Key"));
75 ASSERT_TRUE(t->GetBytes(&plaintext, "Plaintext"));
76 ASSERT_TRUE(t->GetBytes(&additional_data, "AdditionalData"));
77 ASSERT_TRUE(t->GetBytes(&nonce, "Nonce"));
78 ASSERT_TRUE(t->GetBytes(&ciphertext, "Ciphertext"));
79 ASSERT_TRUE(t->GetBytes(&tag, "Tag"));
80
81 ASSERT_EQ(plaintext.size(), ciphertext.size());
82 ASSERT_TRUE(key.size() == 16 || key.size() == 24 || key.size() == 32);
83 ASSERT_EQ(16u, tag.size());
84
85 std::vector<uint8_t> out(plaintext.size());
86 AES_KEY aes_key;
87 ASSERT_EQ(0, AES_set_encrypt_key(key.data(), key.size() * 8, &aes_key));
88
89 GCM128_CONTEXT ctx;
90 CRYPTO_gcm128_init(&ctx, &aes_key, (block128_f)AES_encrypt, 0);
91 CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce.data(), nonce.size());
92 if (!additional_data.empty()) {
93 CRYPTO_gcm128_aad(&ctx, additional_data.data(), additional_data.size());
94 }
95 if (!plaintext.empty()) {
96 CRYPTO_gcm128_encrypt(&ctx, &aes_key, plaintext.data(), out.data(),
97 plaintext.size());
98 }
99 ASSERT_TRUE(CRYPTO_gcm128_finish(&ctx, tag.data(), tag.size()));
100 EXPECT_EQ(Bytes(ciphertext), Bytes(out));
101
102 CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce.data(), nonce.size());
103 OPENSSL_memset(out.data(), 0, out.size());
104 if (!additional_data.empty()) {
105 CRYPTO_gcm128_aad(&ctx, additional_data.data(), additional_data.size());
106 }
107 if (!ciphertext.empty()) {
108 CRYPTO_gcm128_decrypt(&ctx, &aes_key, ciphertext.data(), out.data(),
109 ciphertext.size());
110 }
111 ASSERT_TRUE(CRYPTO_gcm128_finish(&ctx, tag.data(), tag.size()));
112 EXPECT_EQ(Bytes(plaintext), Bytes(out));
113 });
114 }
115
TEST(GCMTest,ByteSwap)116 TEST(GCMTest, ByteSwap) {
117 EXPECT_EQ(0x04030201u, CRYPTO_bswap4(0x01020304u));
118 EXPECT_EQ(UINT64_C(0x0807060504030201),
119 CRYPTO_bswap8(UINT64_C(0x0102030405060708)));
120 }
121