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      1 /* Copyright (c) 2016, 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 <openssl/ripemd.h>
     16 
     17 #include <memory>
     18 
     19 #include <stdio.h>
     20 #include <string.h>
     21 
     22 #include <gtest/gtest.h>
     23 
     24 #include "../../crypto/internal.h"
     25 #include "../../crypto/test/test_util.h"
     26 
     27 
     28 struct RIPEMDTestCase {
     29   const char *input;
     30   uint8_t expected[RIPEMD160_DIGEST_LENGTH];
     31 };
     32 
     33 static const RIPEMDTestCase kRIPEMDTestCases[] = {
     34     {"", {0x9c, 0x11, 0x85, 0xa5, 0xc5, 0xe9, 0xfc, 0x54, 0x61, 0x28,
     35           0x08, 0x97, 0x7e, 0xe8, 0xf5, 0x48, 0xb2, 0x25, 0x8d, 0x31}},
     36     {"a", {0x0b, 0xdc, 0x9d, 0x2d, 0x25, 0x6b, 0x3e, 0xe9, 0xda, 0xae,
     37            0x34, 0x7b, 0xe6, 0xf4, 0xdc, 0x83, 0x5a, 0x46, 0x7f, 0xfe}},
     38     {"abc", {0x8e, 0xb2, 0x08, 0xf7, 0xe0, 0x5d, 0x98, 0x7a, 0x9b, 0x04,
     39              0x4a, 0x8e, 0x98, 0xc6, 0xb0, 0x87, 0xf1, 0x5a, 0x0b, 0xfc}},
     40     {"message digest",
     41      {0x5d, 0x06, 0x89, 0xef, 0x49, 0xd2, 0xfa, 0xe5, 0x72, 0xb8,
     42       0x81, 0xb1, 0x23, 0xa8, 0x5f, 0xfa, 0x21, 0x59, 0x5f, 0x36}},
     43     {"abcdefghijklmnopqrstuvwxyz",
     44      {0xf7, 0x1c, 0x27, 0x10, 0x9c, 0x69, 0x2c, 0x1b, 0x56, 0xbb,
     45       0xdc, 0xeb, 0x5b, 0x9d, 0x28, 0x65, 0xb3, 0x70, 0x8d, 0xbc}},
     46     {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
     47      {0x12, 0xa0, 0x53, 0x38, 0x4a, 0x9c, 0x0c, 0x88, 0xe4, 0x05,
     48       0xa0, 0x6c, 0x27, 0xdc, 0xf4, 0x9a, 0xda, 0x62, 0xeb, 0x2b}},
     49     {"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
     50      {0xb0, 0xe2, 0x0b, 0x6e, 0x31, 0x16, 0x64, 0x02, 0x86, 0xed,
     51       0x3a, 0x87, 0xa5, 0x71, 0x30, 0x79, 0xb2, 0x1f, 0x51, 0x89}},
     52     {"1234567890123456789012345678901234567890123456789012345678901234567890123"
     53      "4567890",
     54      {0x9b, 0x75, 0x2e, 0x45, 0x57, 0x3d, 0x4b, 0x39, 0xf4, 0xdb,
     55       0xd3, 0x32, 0x3c, 0xab, 0x82, 0xbf, 0x63, 0x32, 0x6b, 0xfb}},
     56 };
     57 
     58 // TODO(davidben): Convert this file to GTest properly.
     59 TEST(RIPEMDTest, RunTest) {
     60   unsigned test_num = 0;
     61   int ok = 1;
     62 
     63   for (const auto &test : kRIPEMDTestCases) {
     64     test_num++;
     65 
     66     const size_t input_len = strlen(test.input);
     67 
     68     for (size_t stride = 0; stride <= input_len; stride++) {
     69       uint8_t digest[RIPEMD160_DIGEST_LENGTH];
     70 
     71       if (stride == 0) {
     72         RIPEMD160(reinterpret_cast<const uint8_t *>(test.input), input_len,
     73                   digest);
     74       } else {
     75         RIPEMD160_CTX ctx;
     76         RIPEMD160_Init(&ctx);
     77 
     78         for (size_t done = 0; done < input_len;) {
     79           const size_t remaining = input_len - done;
     80           size_t todo = stride;
     81           if (todo > remaining) {
     82             todo = remaining;
     83           }
     84 
     85           RIPEMD160_Update(&ctx, &test.input[done], todo);
     86           done += todo;
     87         }
     88 
     89         RIPEMD160_Final(digest, &ctx);
     90       }
     91 
     92       if (OPENSSL_memcmp(digest, test.expected, sizeof(digest)) != 0) {
     93         fprintf(stderr, "#%u: bad result with stride %u: ", test_num,
     94                 static_cast<unsigned>(stride));
     95         hexdump(stderr, "", digest, sizeof(digest));
     96         ok = 0;
     97       }
     98     }
     99   }
    100 
    101   static const size_t kLargeBufSize = 1000000;
    102   std::unique_ptr<uint8_t[]> buf(new uint8_t[kLargeBufSize]);
    103   OPENSSL_memset(buf.get(), 'a', kLargeBufSize);
    104   uint8_t digest[RIPEMD160_DIGEST_LENGTH];
    105   RIPEMD160(buf.get(), kLargeBufSize, digest);
    106 
    107   static const uint8_t kMillionADigest[RIPEMD160_DIGEST_LENGTH] = {
    108       0x52, 0x78, 0x32, 0x43, 0xc1, 0x69, 0x7b, 0xdb, 0xe1, 0x6d,
    109       0x37, 0xf9, 0x7f, 0x68, 0xf0, 0x83, 0x25, 0xdc, 0x15, 0x28};
    110 
    111   if (OPENSSL_memcmp(digest, kMillionADigest, sizeof(digest)) != 0) {
    112     fprintf(stderr, "Digest incorrect for million a's test: ");
    113     hexdump(stderr, "", digest, sizeof(digest));
    114     ok = 0;
    115   }
    116 
    117   EXPECT_EQ(1, ok);
    118 }
    119