47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
// Copyright (c) 2019, Google Inc.
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// SPDX-License-Identifier: ISC
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#include <stdint.h>
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#include <gtest/gtest.h>
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#include <openssl/siphash.h>
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#include "../test/file_test.h"
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#include "../test/test_util.h"
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TEST(SipHash, Basic) {
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// This is the example from appendix A of the SipHash paper.
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uint8_t key_bytes[16];
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for (unsigned i = 0; i < 16; i++) {
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key_bytes[i] = i;
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}
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uint64_t key[2];
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memcpy(key, key_bytes, sizeof(key));
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uint8_t input[15];
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for (unsigned i = 0; i < sizeof(input); i++) {
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input[i] = i;
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}
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EXPECT_EQ(UINT64_C(0xa129ca6149be45e5),
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SIPHASH_24(key, input, sizeof(input)));
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}
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TEST(SipHash, Vectors) {
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FileTestGTest("crypto/siphash/siphash_tests.txt", [](FileTest *t) {
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std::vector<uint8_t> key, msg, hash_bytes;
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ASSERT_TRUE(t->GetBytes(&key, "KEY"));
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ASSERT_TRUE(t->GetBytes(&msg, "IN"));
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ASSERT_TRUE(t->GetBytes(&hash_bytes, "HASH"));
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ASSERT_EQ(16u, key.size());
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ASSERT_EQ(8u, hash_bytes.size());
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uint64_t hash = CRYPTO_load_u64_le(hash_bytes.data());
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uint64_t key_words[2];
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memcpy(key_words, key.data(), key.size());
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uint64_t result = SIPHASH_24(key_words, msg.data(), msg.size());
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EXPECT_EQ(result, hash);
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});
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}
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