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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "crypto/sha2.h"
#include "base/basictypes.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(Sha256Test, Test1) {
// Example B.1 from FIPS 180-2: one-block message.
std::string input1 = "abc";
int expected1[] = { 0xba, 0x78, 0x16, 0xbf,
0x8f, 0x01, 0xcf, 0xea,
0x41, 0x41, 0x40, 0xde,
0x5d, 0xae, 0x22, 0x23,
0xb0, 0x03, 0x61, 0xa3,
0x96, 0x17, 0x7a, 0x9c,
0xb4, 0x10, 0xff, 0x61,
0xf2, 0x00, 0x15, 0xad };
uint8 output1[crypto::SHA256_LENGTH];
crypto::SHA256HashString(input1, output1, sizeof(output1));
for (size_t i = 0; i < crypto::SHA256_LENGTH; i++)
EXPECT_EQ(expected1[i], static_cast<int>(output1[i]));
uint8 output_truncated1[4]; // 4 bytes == 32 bits
crypto::SHA256HashString(input1,
output_truncated1, sizeof(output_truncated1));
for (size_t i = 0; i < sizeof(output_truncated1); i++)
EXPECT_EQ(expected1[i], static_cast<int>(output_truncated1[i]));
}
TEST(Sha256Test, Test1_String) {
// Same as the above, but using the wrapper that returns a std::string.
// Example B.1 from FIPS 180-2: one-block message.
std::string input1 = "abc";
int expected1[] = { 0xba, 0x78, 0x16, 0xbf,
0x8f, 0x01, 0xcf, 0xea,
0x41, 0x41, 0x40, 0xde,
0x5d, 0xae, 0x22, 0x23,
0xb0, 0x03, 0x61, 0xa3,
0x96, 0x17, 0x7a, 0x9c,
0xb4, 0x10, 0xff, 0x61,
0xf2, 0x00, 0x15, 0xad };
std::string output1 = crypto::SHA256HashString(input1);
ASSERT_EQ(crypto::SHA256_LENGTH, output1.size());
for (size_t i = 0; i < crypto::SHA256_LENGTH; i++)
EXPECT_EQ(expected1[i], static_cast<uint8>(output1[i]));
}
TEST(Sha256Test, Test2) {
// Example B.2 from FIPS 180-2: multi-block message.
std::string input2 =
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
int expected2[] = { 0x24, 0x8d, 0x6a, 0x61,
0xd2, 0x06, 0x38, 0xb8,
0xe5, 0xc0, 0x26, 0x93,
0x0c, 0x3e, 0x60, 0x39,
0xa3, 0x3c, 0xe4, 0x59,
0x64, 0xff, 0x21, 0x67,
0xf6, 0xec, 0xed, 0xd4,
0x19, 0xdb, 0x06, 0xc1 };
uint8 output2[crypto::SHA256_LENGTH];
crypto::SHA256HashString(input2, output2, sizeof(output2));
for (size_t i = 0; i < crypto::SHA256_LENGTH; i++)
EXPECT_EQ(expected2[i], static_cast<int>(output2[i]));
uint8 output_truncated2[6];
crypto::SHA256HashString(input2,
output_truncated2, sizeof(output_truncated2));
for (size_t i = 0; i < sizeof(output_truncated2); i++)
EXPECT_EQ(expected2[i], static_cast<int>(output_truncated2[i]));
}
TEST(Sha256Test, Test3) {
// Example B.3 from FIPS 180-2: long message.
std::string input3(1000000, 'a'); // 'a' repeated a million times
int expected3[] = { 0xcd, 0xc7, 0x6e, 0x5c,
0x99, 0x14, 0xfb, 0x92,
0x81, 0xa1, 0xc7, 0xe2,
0x84, 0xd7, 0x3e, 0x67,
0xf1, 0x80, 0x9a, 0x48,
0xa4, 0x97, 0x20, 0x0e,
0x04, 0x6d, 0x39, 0xcc,
0xc7, 0x11, 0x2c, 0xd0 };
uint8 output3[crypto::SHA256_LENGTH];
crypto::SHA256HashString(input3, output3, sizeof(output3));
for (size_t i = 0; i < crypto::SHA256_LENGTH; i++)
EXPECT_EQ(expected3[i], static_cast<int>(output3[i]));
uint8 output_truncated3[12];
crypto::SHA256HashString(input3,
output_truncated3, sizeof(output_truncated3));
for (size_t i = 0; i < sizeof(output_truncated3); i++)
EXPECT_EQ(expected3[i], static_cast<int>(output_truncated3[i]));
}
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