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/* Copyright (c) 2019, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <stdint.h>
#include <gtest/gtest.h>
#include <openssl/siphash.h>
#include "../test/file_test.h"
#include "../test/test_util.h"
TEST(SipHash, Basic) {
// This is the example from appendix A of the SipHash paper.
union {
uint8_t bytes[16];
uint64_t words[2];
} key;
for (unsigned i = 0; i < 16; i++) {
key.bytes[i] = i;
}
uint8_t input[15];
for (unsigned i = 0; i < sizeof(input); i++) {
input[i] = i;
}
EXPECT_EQ(UINT64_C(0xa129ca6149be45e5),
SIPHASH_24(key.words, input, sizeof(input)));
}
TEST(SipHash, Vectors) {
FileTestGTest("crypto/siphash/siphash_tests.txt", [](FileTest *t) {
std::vector<uint8_t> key, msg, hash;
ASSERT_TRUE(t->GetBytes(&key, "KEY"));
ASSERT_TRUE(t->GetBytes(&msg, "IN"));
ASSERT_TRUE(t->GetBytes(&hash, "HASH"));
ASSERT_EQ(16u, key.size());
ASSERT_EQ(8u, hash.size());
uint64_t key_words[2];
memcpy(key_words, key.data(), key.size());
uint64_t result = SIPHASH_24(key_words, msg.data(), msg.size());
EXPECT_EQ(Bytes(reinterpret_cast<uint8_t *>(&result), sizeof(result)),
Bytes(hash));
});
}
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