1 // Copyright 2020 The BoringSSL Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include <stdio.h>
16 #include <string.h>
17
18 #include <array>
19 #include <string>
20
21 #include <openssl/aead.h>
22 #include <openssl/base.h>
23 #include <openssl/cipher.h>
24 #include <openssl/crypto.h>
25 #include <openssl/mem.h>
26
27 #include <gtest/gtest.h>
28
29 #include "internal.h"
30
31
32 // Test that OPENSSL_VERSION_NUMBER and OPENSSL_VERSION_TEXT are consistent.
33 // Node.js parses the version out of OPENSSL_VERSION_TEXT instead of using
34 // OPENSSL_VERSION_NUMBER.
TEST(CryptoTest,Version)35 TEST(CryptoTest, Version) {
36 char expected[512];
37 snprintf(expected, sizeof(expected), "OpenSSL %d.%d.%d ",
38 OPENSSL_VERSION_NUMBER >> 28, (OPENSSL_VERSION_NUMBER >> 20) & 0xff,
39 (OPENSSL_VERSION_NUMBER >> 12) & 0xff);
40 EXPECT_EQ(expected,
41 std::string(OPENSSL_VERSION_TEXT).substr(0, strlen(expected)));
42 }
43
TEST(CryptoTest,Strndup)44 TEST(CryptoTest, Strndup) {
45 bssl::UniquePtr<char> str(OPENSSL_strndup(nullptr, 0));
46 EXPECT_TRUE(str);
47 EXPECT_STREQ("", str.get());
48 }
49
TEST(CryptoTest,ByteSwap)50 TEST(CryptoTest, ByteSwap) {
51 EXPECT_EQ(0x04030201u, CRYPTO_bswap4(0x01020304u));
52 EXPECT_EQ(UINT64_C(0x0807060504030201),
53 CRYPTO_bswap8(UINT64_C(0x0102030405060708)));
54 }
55
56 #if defined(BORINGSSL_FIPS_COUNTERS)
57 using CounterArray = size_t[fips_counter_max + 1];
58
read_all_counters(CounterArray counters)59 static void read_all_counters(CounterArray counters) {
60 for (int counter = 0; counter <= fips_counter_max; counter++) {
61 counters[counter] = FIPS_read_counter(static_cast<fips_counter_t>(counter));
62 }
63 }
64
expect_counter_delta_is_zero_except_for_a_one_at(CounterArray before,CounterArray after,fips_counter_t position)65 static void expect_counter_delta_is_zero_except_for_a_one_at(
66 CounterArray before, CounterArray after, fips_counter_t position) {
67 for (int counter = 0; counter <= fips_counter_max; counter++) {
68 const size_t expected_delta = counter == position ? 1 : 0;
69 EXPECT_EQ(after[counter], before[counter] + expected_delta) << counter;
70 }
71 }
72
TEST(CryptoTest,FIPSCountersEVP)73 TEST(CryptoTest, FIPSCountersEVP) {
74 constexpr struct {
75 const EVP_CIPHER *(*cipher)();
76 fips_counter_t counter;
77 } kTests[] = {
78 {
79 EVP_aes_128_gcm,
80 fips_counter_evp_aes_128_gcm,
81 },
82 {
83 EVP_aes_256_gcm,
84 fips_counter_evp_aes_256_gcm,
85 },
86 {
87 EVP_aes_128_ctr,
88 fips_counter_evp_aes_128_ctr,
89 },
90 {
91 EVP_aes_256_ctr,
92 fips_counter_evp_aes_256_ctr,
93 },
94 };
95
96 uint8_t key[EVP_MAX_KEY_LENGTH] = {0};
97 uint8_t iv[EVP_MAX_IV_LENGTH] = {1};
98 CounterArray before, after;
99 for (const auto &test : kTests) {
100 read_all_counters(before);
101 bssl::ScopedEVP_CIPHER_CTX ctx;
102 ASSERT_TRUE(EVP_EncryptInit_ex(ctx.get(), test.cipher(), /*engine=*/nullptr,
103 key, iv));
104 read_all_counters(after);
105
106 expect_counter_delta_is_zero_except_for_a_one_at(before, after,
107 test.counter);
108 }
109 }
110
TEST(CryptoTest,FIPSCountersEVP_AEAD)111 TEST(CryptoTest, FIPSCountersEVP_AEAD) {
112 constexpr struct {
113 const EVP_AEAD *(*aead)();
114 unsigned key_len;
115 fips_counter_t counter;
116 } kTests[] = {
117 {
118 EVP_aead_aes_128_gcm,
119 16,
120 fips_counter_evp_aes_128_gcm,
121 },
122 {
123 EVP_aead_aes_256_gcm,
124 32,
125 fips_counter_evp_aes_256_gcm,
126 },
127 };
128
129 uint8_t key[EVP_AEAD_MAX_KEY_LENGTH] = {0};
130 CounterArray before, after;
131 for (const auto &test : kTests) {
132 ASSERT_LE(test.key_len, sizeof(key));
133
134 read_all_counters(before);
135 bssl::ScopedEVP_AEAD_CTX ctx;
136 ASSERT_TRUE(EVP_AEAD_CTX_init(ctx.get(), test.aead(), key, test.key_len,
137 EVP_AEAD_DEFAULT_TAG_LENGTH,
138 /*engine=*/nullptr));
139 read_all_counters(after);
140
141 expect_counter_delta_is_zero_except_for_a_one_at(before, after,
142 test.counter);
143 }
144 }
145
146 #endif // BORINGSSL_FIPS_COUNTERS
147
TEST(Crypto,QueryAlgorithmStatus)148 TEST(Crypto, QueryAlgorithmStatus) {
149 #if defined(BORINGSSL_FIPS)
150 const bool is_fips_build = true;
151 #else
152 const bool is_fips_build = false;
153 #endif
154
155 EXPECT_EQ(FIPS_query_algorithm_status("AES-GCM"), is_fips_build);
156 EXPECT_EQ(FIPS_query_algorithm_status("AES-ECB"), is_fips_build);
157
158 EXPECT_FALSE(FIPS_query_algorithm_status("FakeEncrypt"));
159 EXPECT_FALSE(FIPS_query_algorithm_status(""));
160 }
161
162 #if defined(BORINGSSL_FIPS) && !defined(OPENSSL_ASAN)
TEST(Crypto,OnDemandIntegrityTest)163 TEST(Crypto, OnDemandIntegrityTest) { BORINGSSL_integrity_test(); }
164 #endif
165
DeprecatedFunction()166 OPENSSL_DEPRECATED static void DeprecatedFunction() {}
167
168 OPENSSL_BEGIN_ALLOW_DEPRECATED
TEST(CryptoTest,DeprecatedFunction)169 TEST(CryptoTest, DeprecatedFunction) {
170 // This is deprecated, but should not trigger any warnings.
171 DeprecatedFunction();
172 }
173 OPENSSL_END_ALLOW_DEPRECATED
174
175
176 #if (defined(OPENSSL_X86) || defined(OPENSSL_X86_64)) && \
177 !defined(OPENSSL_NO_ASM) && !defined(BORINGSSL_SHARED_LIBRARY)
TEST(Crypto,CPUIDEnvVariable)178 TEST(Crypto, CPUIDEnvVariable) {
179 const struct {
180 std::array<uint32_t, 4> in;
181 const char *env;
182 std::array<uint32_t, 4> out;
183 } kTests[] = {
184 // It should be possible to disable RDRAND with OPENSSL_ia32cap_P.
185 {{0x12345678, 0xffffffff, 0x12345678, 0x12345678},
186 "~0x4000000000000000",
187 {0x12345678, 0xbfffffff, 0x12345678, 0x12345678}},
188
189 // Disable RDRAND in decimal and also all post-AVX extensions. RR does
190 // this, though they probably meant to just disable RDRAND.
191 {{0x12345678, 0xffffffff, 0x12345678, 0x12345678},
192 "~4611686018427387904:0",
193 {0x12345678, 0xbfffffff, 0x00000000, 0x00000000}},
194
195 // Set the bitmasks to something else.
196 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
197 "0x8877665544332211:0x1122334455667788",
198 {0x44332211, 0x88776655, 0x55667788, 0x11223344}},
199 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
200 "1",
201 {0x00000001, 0x00000000, 0x12345678, 0x12345678}},
202 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
203 "1:2",
204 {0x00000001, 0x00000000, 0x00000002, 0x00000000}},
205 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
206 "0:0",
207 {0x00000000, 0x00000000, 0x00000000, 0x00000000}},
208
209 // Enable bits.
210 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
211 "|0xf0f0f0f0f0f0f0f0:|0x0f0f0f0f0f0f0f0f",
212 {0xf2f4f6f8, 0xf2f4f6f8, 0x1f3f5f7f, 0x1f3f5f7f}},
213
214 // Clear bits.
215 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
216 "~0xf0f0f0f0f0f0f0f0:~0x0f0f0f0f0f0f0f0f",
217 {0x02040608, 0x02040608, 0x10305070, 0x10305070}},
218
219 // Syntax errors are silently ignored.
220 // TODO(davidben): We should also test something like " 1: 2", but that
221 // currently fails because |strtoull| skips leading spaces.
222 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
223 "nope",
224 {0x12345678, 0x12345678, 0x12345678, 0x12345678}},
225 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
226 "1nope:2nope",
227 {0x12345678, 0x12345678, 0x12345678, 0x12345678}},
228
229 // Overflows are caught and silently ignored.
230 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
231 "0x10000000000000000:0x10000000000000000",
232 {0x12345678, 0x12345678, 0x12345678, 0x12345678}},
233 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
234 "~0x1ffffffffffffffff:~0x1ffffffffffffffff",
235 {0x12345678, 0x12345678, 0x12345678, 0x12345678}},
236 {{0x12345678, 0x12345678, 0x12345678, 0x12345678},
237 "|0x1ffffffffffffffff:|0x1ffffffffffffffff",
238 {0x12345678, 0x12345678, 0x12345678, 0x12345678}},
239 };
240 for (const auto &t : kTests) {
241 SCOPED_TRACE(t.env);
242 std::array<uint32_t, 4> cap = t.in;
243 OPENSSL_adjust_ia32cap(cap.data(), t.env);
244 EXPECT_EQ(cap, t.out);
245 }
246 }
247 #endif
248