Pete Bentley | 0c61efe | 2019-08-13 09:32:23 +0100 | [diff] [blame^] | 1 | /* Copyright (c) 2019, 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 | |
| 17 | #include <gtest/gtest.h> |
| 18 | |
| 19 | #include <openssl/siphash.h> |
| 20 | |
| 21 | #include "../test/file_test.h" |
| 22 | #include "../test/test_util.h" |
| 23 | |
| 24 | TEST(SipHash, Basic) { |
| 25 | // This is the example from appendix A of the SipHash paper. |
| 26 | union { |
| 27 | uint8_t bytes[16]; |
| 28 | uint64_t words[2]; |
| 29 | } key; |
| 30 | |
| 31 | for (unsigned i = 0; i < 16; i++) { |
| 32 | key.bytes[i] = i; |
| 33 | } |
| 34 | |
| 35 | uint8_t input[15]; |
| 36 | for (unsigned i = 0; i < sizeof(input); i++) { |
| 37 | input[i] = i; |
| 38 | } |
| 39 | |
| 40 | EXPECT_EQ(UINT64_C(0xa129ca6149be45e5), |
| 41 | SIPHASH_24(key.words, input, sizeof(input))); |
| 42 | } |
| 43 | |
| 44 | TEST(SipHash, Vectors) { |
| 45 | FileTestGTest("crypto/siphash/siphash_tests.txt", [](FileTest *t) { |
| 46 | std::vector<uint8_t> key, msg, hash; |
| 47 | ASSERT_TRUE(t->GetBytes(&key, "KEY")); |
| 48 | ASSERT_TRUE(t->GetBytes(&msg, "IN")); |
| 49 | ASSERT_TRUE(t->GetBytes(&hash, "HASH")); |
| 50 | ASSERT_EQ(16u, key.size()); |
| 51 | ASSERT_EQ(8u, hash.size()); |
| 52 | |
| 53 | uint64_t key_words[2]; |
| 54 | memcpy(key_words, key.data(), key.size()); |
| 55 | uint64_t result = SIPHASH_24(key_words, msg.data(), msg.size()); |
| 56 | EXPECT_EQ(Bytes(reinterpret_cast<uint8_t *>(&result), sizeof(result)), |
| 57 | Bytes(hash)); |
| 58 | }); |
| 59 | } |