1 /* Copyright (c) 2014, Google Inc.
2  *
3  * Permission to use, copy, modify, and/or distribute this software for any
4  * purpose with or without fee is hereby granted, provided that the above
5  * copyright notice and this permission notice appear in all copies.
6  *
7  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14 
15 #include <stdint.h>
16 #include <stdio.h>
17 #include <string.h>
18 
19 #include <openssl/crypto.h>
20 #include <openssl/digest.h>
21 #include <openssl/err.h>
22 #include <openssl/md4.h>
23 #include <openssl/md5.h>
24 #include <openssl/sha.h>
25 
26 #include "../test/scoped_types.h"
27 
28 
29 struct MD {
30   // name is the name of the digest.
31   const char* name;
32   // md_func is the digest to test.
33   const EVP_MD *(*func)(void);
34   // one_shot_func is the convenience one-shot version of the
35   // digest.
36   uint8_t *(*one_shot_func)(const uint8_t *, size_t, uint8_t *);
37 };
38 
39 static const MD md4 = { "MD4", &EVP_md4, nullptr };
40 static const MD md5 = { "MD5", &EVP_md5, &MD5 };
41 static const MD sha1 = { "SHA1", &EVP_sha1, &SHA1 };
42 static const MD sha224 = { "SHA224", &EVP_sha224, &SHA224 };
43 static const MD sha256 = { "SHA256", &EVP_sha256, &SHA256 };
44 static const MD sha384 = { "SHA384", &EVP_sha384, &SHA384 };
45 static const MD sha512 = { "SHA512", &EVP_sha512, &SHA512 };
46 static const MD md5_sha1 = { "MD5-SHA1", &EVP_md5_sha1, nullptr };
47 
48 struct TestVector {
49   // md is the digest to test.
50   const MD &md;
51   // input is a NUL-terminated string to hash.
52   const char *input;
53   // repeat is the number of times to repeat input.
54   size_t repeat;
55   // expected_hex is the expected digest in hexadecimal.
56   const char *expected_hex;
57 };
58 
59 static const TestVector kTestVectors[] = {
60     // MD4 tests, from RFC 1320. (crypto/md4 does not provide a
61     // one-shot MD4 function.)
62     { md4, "", 1, "31d6cfe0d16ae931b73c59d7e0c089c0" },
63     { md4, "a", 1, "bde52cb31de33e46245e05fbdbd6fb24" },
64     { md4, "abc", 1, "a448017aaf21d8525fc10ae87aa6729d" },
65     { md4, "message digest", 1, "d9130a8164549fe818874806e1c7014b" },
66     { md4, "abcdefghijklmnopqrstuvwxyz", 1,
67       "d79e1c308aa5bbcdeea8ed63df412da9" },
68     { md4,
69       "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 1,
70       "043f8582f241db351ce627e153e7f0e4" },
71     { md4, "1234567890", 8, "e33b4ddc9c38f2199c3e7b164fcc0536" },
72 
73     // MD5 tests, from RFC 1321.
74     { md5, "", 1, "d41d8cd98f00b204e9800998ecf8427e" },
75     { md5, "a", 1, "0cc175b9c0f1b6a831c399e269772661" },
76     { md5, "abc", 1, "900150983cd24fb0d6963f7d28e17f72" },
77     { md5, "message digest", 1, "f96b697d7cb7938d525a2f31aaf161d0" },
78     { md5, "abcdefghijklmnopqrstuvwxyz", 1,
79       "c3fcd3d76192e4007dfb496cca67e13b" },
80     { md5,
81       "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 1,
82       "d174ab98d277d9f5a5611c2c9f419d9f" },
83     { md5, "1234567890", 8, "57edf4a22be3c955ac49da2e2107b67a" },
84 
85     // SHA-1 tests, from RFC 3174.
86     { sha1, "abc", 1, "a9993e364706816aba3e25717850c26c9cd0d89d" },
87     { sha1,
88       "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 1,
89       "84983e441c3bd26ebaae4aa1f95129e5e54670f1" },
90     { sha1, "a", 1000000, "34aa973cd4c4daa4f61eeb2bdbad27316534016f" },
91     { sha1,
92       "0123456701234567012345670123456701234567012345670123456701234567", 10,
93       "dea356a2cddd90c7a7ecedc5ebb563934f460452" },
94 
95     // SHA-224 tests, from RFC 3874.
96     { sha224, "abc", 1,
97       "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7" },
98     { sha224,
99       "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 1,
100       "75388b16512776cc5dba5da1fd890150b0c6455cb4f58b1952522525" },
101     { sha224,
102       "a", 1000000,
103       "20794655980c91d8bbb4c1ea97618a4bf03f42581948b2ee4ee7ad67" },
104 
105     // SHA-256 tests, from NIST.
106     { sha256, "abc", 1,
107       "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad" },
108     { sha256,
109       "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 1,
110       "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1" },
111 
112     // SHA-384 tests, from NIST.
113     { sha384, "abc", 1,
114       "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed"
115       "8086072ba1e7cc2358baeca134c825a7" },
116     { sha384,
117       "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
118       "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", 1,
119       "09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712"
120       "fcc7c71a557e2db966c3e9fa91746039" },
121 
122     // SHA-512 tests, from NIST.
123     { sha512, "abc", 1,
124       "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"
125       "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f" },
126     { sha512,
127       "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
128       "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", 1,
129       "8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"
130       "501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909" },
131 
132     // MD5-SHA1 tests.
133     { md5_sha1, "abc", 1,
134       "900150983cd24fb0d6963f7d28e17f72a9993e364706816aba3e25717850c26c9cd0d89d" },
135 };
136 
CompareDigest(const TestVector * test,const uint8_t * digest,size_t digest_len)137 static bool CompareDigest(const TestVector *test,
138                           const uint8_t *digest,
139                           size_t digest_len) {
140   static const char kHexTable[] = "0123456789abcdef";
141   size_t i;
142   char digest_hex[2*EVP_MAX_MD_SIZE + 1];
143 
144   for (i = 0; i < digest_len; i++) {
145     digest_hex[2*i] = kHexTable[digest[i] >> 4];
146     digest_hex[2*i + 1] = kHexTable[digest[i] & 0xf];
147   }
148   digest_hex[2*digest_len] = '\0';
149 
150   if (strcmp(digest_hex, test->expected_hex) != 0) {
151     fprintf(stderr, "%s(\"%s\" * %d) = %s; want %s\n",
152             test->md.name, test->input, (int)test->repeat,
153             digest_hex, test->expected_hex);
154     return false;
155   }
156 
157   return true;
158 }
159 
TestDigest(const TestVector * test)160 static int TestDigest(const TestVector *test) {
161   ScopedEVP_MD_CTX ctx;
162 
163   // Test the input provided.
164   if (!EVP_DigestInit_ex(ctx.get(), test->md.func(), NULL)) {
165     fprintf(stderr, "EVP_DigestInit_ex failed\n");
166     return false;
167   }
168   for (size_t i = 0; i < test->repeat; i++) {
169     if (!EVP_DigestUpdate(ctx.get(), test->input, strlen(test->input))) {
170       fprintf(stderr, "EVP_DigestUpdate failed\n");
171       return false;
172     }
173   }
174   uint8_t digest[EVP_MAX_MD_SIZE];
175   unsigned digest_len;
176   if (!EVP_DigestFinal_ex(ctx.get(), digest, &digest_len)) {
177     fprintf(stderr, "EVP_DigestFinal_ex failed\n");
178     return false;
179   }
180   if (!CompareDigest(test, digest, digest_len)) {
181     return false;
182   }
183 
184   // Test the input one character at a time.
185   if (!EVP_DigestInit_ex(ctx.get(), test->md.func(), NULL)) {
186     fprintf(stderr, "EVP_DigestInit_ex failed\n");
187     return false;
188   }
189   if (!EVP_DigestUpdate(ctx.get(), NULL, 0)) {
190     fprintf(stderr, "EVP_DigestUpdate failed\n");
191     return false;
192   }
193   for (size_t i = 0; i < test->repeat; i++) {
194     for (const char *p = test->input; *p; p++) {
195       if (!EVP_DigestUpdate(ctx.get(), p, 1)) {
196         fprintf(stderr, "EVP_DigestUpdate failed\n");
197         return false;
198       }
199     }
200   }
201   if (!EVP_DigestFinal_ex(ctx.get(), digest, &digest_len)) {
202     fprintf(stderr, "EVP_DigestFinal_ex failed\n");
203     return false;
204   }
205   if (digest_len != EVP_MD_size(test->md.func())) {
206     fprintf(stderr, "EVP_MD_size output incorrect\n");
207     return false;
208   }
209   if (!CompareDigest(test, digest, digest_len)) {
210     return false;
211   }
212 
213   // Test the one-shot function.
214   if (test->md.one_shot_func && test->repeat == 1) {
215     uint8_t *out = test->md.one_shot_func((const uint8_t *)test->input,
216                                           strlen(test->input), digest);
217     if (out != digest) {
218       fprintf(stderr, "one_shot_func gave incorrect return\n");
219       return false;
220     }
221     if (!CompareDigest(test, digest, EVP_MD_size(test->md.func()))) {
222       return false;
223     }
224 
225     // Test the deprecated static buffer variant, until it's removed.
226     out = test->md.one_shot_func((const uint8_t *)test->input,
227                                  strlen(test->input), NULL);
228     if (!CompareDigest(test, out, EVP_MD_size(test->md.func()))) {
229       return false;
230     }
231   }
232 
233   return true;
234 }
235 
TestGetters()236 static int TestGetters() {
237   if (EVP_get_digestbyname("RSA-SHA512") == NULL ||
238       EVP_get_digestbyname("sha512WithRSAEncryption") == NULL ||
239       EVP_get_digestbyname("nonsense") != NULL) {
240     return false;
241   }
242 
243   return true;
244 }
245 
main(void)246 int main(void) {
247   CRYPTO_library_init();
248   ERR_load_crypto_strings();
249 
250   for (size_t i = 0; i < sizeof(kTestVectors) / sizeof(kTestVectors[0]); i++) {
251     if (!TestDigest(&kTestVectors[i])) {
252       fprintf(stderr, "Test %d failed\n", (int)i);
253       return 1;
254     }
255   }
256 
257   if (!TestGetters()) {
258     return 1;
259   }
260 
261   printf("PASS\n");
262   return 0;
263 }
264