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 #include <stdio.h>
50 #include <string.h>
51
52 #include <vector>
53
54 #include <gtest/gtest.h>
55
56 #include <openssl/aes.h>
57
58 #include "../../internal.h"
59 #include "../../test/abi_test.h"
60 #include "../../test/file_test.h"
61 #include "../../test/test_util.h"
62 #include "../aes/internal.h"
63 #include "internal.h"
64
65
TEST(GCMTest,TestVectors)66 TEST(GCMTest, TestVectors) {
67 FileTestGTest("crypto/fipsmodule/modes/gcm_tests.txt", [](FileTest *t) {
68 std::vector<uint8_t> key, plaintext, additional_data, nonce, ciphertext,
69 tag;
70 ASSERT_TRUE(t->GetBytes(&key, "Key"));
71 ASSERT_TRUE(t->GetBytes(&plaintext, "Plaintext"));
72 ASSERT_TRUE(t->GetBytes(&additional_data, "AdditionalData"));
73 ASSERT_TRUE(t->GetBytes(&nonce, "Nonce"));
74 ASSERT_TRUE(t->GetBytes(&ciphertext, "Ciphertext"));
75 ASSERT_TRUE(t->GetBytes(&tag, "Tag"));
76
77 ASSERT_EQ(plaintext.size(), ciphertext.size());
78 ASSERT_TRUE(key.size() == 16 || key.size() == 24 || key.size() == 32);
79 ASSERT_EQ(16u, tag.size());
80
81 std::vector<uint8_t> out(plaintext.size());
82 AES_KEY aes_key;
83 ASSERT_EQ(0, AES_set_encrypt_key(key.data(), key.size() * 8, &aes_key));
84
85 GCM128_CONTEXT ctx;
86 OPENSSL_memset(&ctx, 0, sizeof(ctx));
87 CRYPTO_gcm128_init_key(&ctx.gcm_key, &aes_key, AES_encrypt, 0);
88 CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce.data(), nonce.size());
89 if (!additional_data.empty()) {
90 CRYPTO_gcm128_aad(&ctx, additional_data.data(), additional_data.size());
91 }
92 if (!plaintext.empty()) {
93 CRYPTO_gcm128_encrypt(&ctx, &aes_key, plaintext.data(), out.data(),
94 plaintext.size());
95 }
96
97 std::vector<uint8_t> got_tag(tag.size());
98 CRYPTO_gcm128_tag(&ctx, got_tag.data(), got_tag.size());
99 EXPECT_EQ(Bytes(tag), Bytes(got_tag));
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
122 #if defined(SUPPORTS_ABI_TEST) && !defined(OPENSSL_NO_ASM)
TEST(GCMTest,ABI)123 TEST(GCMTest, ABI) {
124 static const uint64_t kH[2] = {
125 UINT64_C(0x66e94bd4ef8a2c3b),
126 UINT64_C(0x884cfa59ca342b2e),
127 };
128 static const size_t kBlockCounts[] = {1, 2, 3, 4, 5, 6, 7, 8, 15, 16, 31, 32};
129 uint8_t buf[16 * 32];
130 OPENSSL_memset(buf, 42, sizeof(buf));
131
132 uint8_t X[16] = {0x92, 0xa3, 0xb3, 0x60, 0xce, 0xda, 0x88, 0x03,
133 0x78, 0xfe, 0xb2, 0x71, 0xb9, 0xc2, 0x28, 0xf3};
134
135 alignas(16) u128 Htable[16];
136 #if defined(GHASH_ASM_X86) || defined(GHASH_ASM_X86_64)
137 if (CRYPTO_is_SSSE3_capable()) {
138 CHECK_ABI_SEH(gcm_init_ssse3, Htable, kH);
139 CHECK_ABI_SEH(gcm_gmult_ssse3, X, Htable);
140 for (size_t blocks : kBlockCounts) {
141 CHECK_ABI_SEH(gcm_ghash_ssse3, X, Htable, buf, 16 * blocks);
142 }
143 }
144
145 if (crypto_gcm_clmul_enabled()) {
146 CHECK_ABI_SEH(gcm_init_clmul, Htable, kH);
147 CHECK_ABI_SEH(gcm_gmult_clmul, X, Htable);
148 for (size_t blocks : kBlockCounts) {
149 CHECK_ABI_SEH(gcm_ghash_clmul, X, Htable, buf, 16 * blocks);
150 }
151
152 #if defined(GHASH_ASM_X86_64)
153 if (CRYPTO_is_AVX_capable() && CRYPTO_is_MOVBE_capable()) {
154 CHECK_ABI_SEH(gcm_init_avx, Htable, kH);
155 CHECK_ABI_SEH(gcm_gmult_avx, X, Htable);
156 for (size_t blocks : kBlockCounts) {
157 CHECK_ABI_SEH(gcm_ghash_avx, X, Htable, buf, 16 * blocks);
158 }
159
160 if (hwaes_capable()) {
161 AES_KEY aes_key;
162 static const uint8_t kKey[16] = {0};
163 uint8_t iv[16] = {0};
164
165 aes_hw_set_encrypt_key(kKey, 128, &aes_key);
166 for (size_t blocks : kBlockCounts) {
167 CHECK_ABI_SEH(aesni_gcm_encrypt, buf, buf, blocks * 16, &aes_key, iv,
168 Htable, X);
169 CHECK_ABI_SEH(aesni_gcm_encrypt, buf, buf, blocks * 16 + 7, &aes_key,
170 iv, Htable, X);
171 }
172 aes_hw_set_decrypt_key(kKey, 128, &aes_key);
173 for (size_t blocks : kBlockCounts) {
174 CHECK_ABI_SEH(aesni_gcm_decrypt, buf, buf, blocks * 16, &aes_key, iv,
175 Htable, X);
176 CHECK_ABI_SEH(aesni_gcm_decrypt, buf, buf, blocks * 16 + 7, &aes_key,
177 iv, Htable, X);
178 }
179 }
180 }
181 #endif // GHASH_ASM_X86_64
182 }
183 #endif // GHASH_ASM_X86 || GHASH_ASM_X86_64
184
185 #if defined(GHASH_ASM_ARM)
186 if (gcm_neon_capable()) {
187 CHECK_ABI(gcm_init_neon, Htable, kH);
188 CHECK_ABI(gcm_gmult_neon, X, Htable);
189 for (size_t blocks : kBlockCounts) {
190 CHECK_ABI(gcm_ghash_neon, X, Htable, buf, 16 * blocks);
191 }
192 }
193
194 if (gcm_pmull_capable()) {
195 CHECK_ABI(gcm_init_v8, Htable, kH);
196 CHECK_ABI(gcm_gmult_v8, X, Htable);
197 for (size_t blocks : kBlockCounts) {
198 CHECK_ABI(gcm_ghash_v8, X, Htable, buf, 16 * blocks);
199 }
200 }
201 #endif // GHASH_ASM_ARM
202
203 #if defined(OPENSSL_AARCH64) && defined(HW_GCM)
204 if (hwaes_capable() && gcm_pmull_capable()) {
205 static const uint8_t kKey[16] = {0};
206 uint8_t iv[16] = {0};
207
208 for (size_t key_bits = 128; key_bits <= 256; key_bits += 64) {
209 AES_KEY aes_key;
210 aes_hw_set_encrypt_key(kKey, key_bits, &aes_key);
211 CHECK_ABI(aes_gcm_enc_kernel, buf, sizeof(buf) * 8, buf, X, iv, &aes_key,
212 Htable);
213 CHECK_ABI(aes_gcm_dec_kernel, buf, sizeof(buf) * 8, buf, X, iv, &aes_key,
214 Htable);
215 }
216 }
217 #endif
218 }
219 #endif // SUPPORTS_ABI_TEST && !OPENSSL_NO_ASM
220