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/* ====================================================================
* Copyright (c) 2008 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ==================================================================== */
#include <stdio.h>
#include <string.h>
#include <vector>
#include <gtest/gtest.h>
#include <openssl/aes.h>
#include <openssl/cpu.h>
#include "internal.h"
#include "../../test/abi_test.h"
#include "../../test/file_test.h"
#include "../../test/test_util.h"
#if defined(OPENSSL_WINDOWS)
OPENSSL_MSVC_PRAGMA(warning(push, 3))
#include <windows.h>
OPENSSL_MSVC_PRAGMA(warning(pop))
#endif
TEST(GCMTest, TestVectors) {
FileTestGTest("crypto/fipsmodule/modes/gcm_tests.txt", [](FileTest *t) {
std::vector<uint8_t> key, plaintext, additional_data, nonce, ciphertext,
tag;
ASSERT_TRUE(t->GetBytes(&key, "Key"));
ASSERT_TRUE(t->GetBytes(&plaintext, "Plaintext"));
ASSERT_TRUE(t->GetBytes(&additional_data, "AdditionalData"));
ASSERT_TRUE(t->GetBytes(&nonce, "Nonce"));
ASSERT_TRUE(t->GetBytes(&ciphertext, "Ciphertext"));
ASSERT_TRUE(t->GetBytes(&tag, "Tag"));
ASSERT_EQ(plaintext.size(), ciphertext.size());
ASSERT_TRUE(key.size() == 16 || key.size() == 24 || key.size() == 32);
ASSERT_EQ(16u, tag.size());
std::vector<uint8_t> out(plaintext.size());
AES_KEY aes_key;
ASSERT_EQ(0, AES_set_encrypt_key(key.data(), key.size() * 8, &aes_key));
GCM128_CONTEXT ctx;
OPENSSL_memset(&ctx, 0, sizeof(ctx));
CRYPTO_gcm128_init_key(&ctx.gcm_key, &aes_key, AES_encrypt, 0);
CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce.data(), nonce.size());
if (!additional_data.empty()) {
CRYPTO_gcm128_aad(&ctx, additional_data.data(), additional_data.size());
}
if (!plaintext.empty()) {
CRYPTO_gcm128_encrypt(&ctx, &aes_key, plaintext.data(), out.data(),
plaintext.size());
}
std::vector<uint8_t> got_tag(tag.size());
CRYPTO_gcm128_tag(&ctx, got_tag.data(), got_tag.size());
EXPECT_EQ(Bytes(tag), Bytes(got_tag));
EXPECT_EQ(Bytes(ciphertext), Bytes(out));
CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce.data(), nonce.size());
OPENSSL_memset(out.data(), 0, out.size());
if (!additional_data.empty()) {
CRYPTO_gcm128_aad(&ctx, additional_data.data(), additional_data.size());
}
if (!ciphertext.empty()) {
CRYPTO_gcm128_decrypt(&ctx, &aes_key, ciphertext.data(), out.data(),
ciphertext.size());
}
ASSERT_TRUE(CRYPTO_gcm128_finish(&ctx, tag.data(), tag.size()));
EXPECT_EQ(Bytes(plaintext), Bytes(out));
});
}
TEST(GCMTest, ByteSwap) {
EXPECT_EQ(0x04030201u, CRYPTO_bswap4(0x01020304u));
EXPECT_EQ(UINT64_C(0x0807060504030201),
CRYPTO_bswap8(UINT64_C(0x0102030405060708)));
}
#if defined(SUPPORTS_ABI_TEST) && defined(GHASH_ASM)
TEST(GCMTest, ABI) {
static const uint64_t kH[2] = {
UINT64_C(0x66e94bd4ef8a2c3b),
UINT64_C(0x884cfa59ca342b2e),
};
static const size_t kBlockCounts[] = {1, 2, 3, 4, 7, 8, 15, 16, 31, 32};
uint8_t buf[16 * 32];
OPENSSL_memset(buf, 42, sizeof(buf));
uint64_t X[2] = {
UINT64_C(0x0388dace60b6a392),
UINT64_C(0xf328c2b971b2fe78),
};
alignas(16) u128 Htable[16];
CHECK_ABI(gcm_init_4bit, Htable, kH);
#if defined(GHASH_ASM_X86)
CHECK_ABI(gcm_gmult_4bit_mmx, X, Htable);
for (size_t blocks : kBlockCounts) {
CHECK_ABI(gcm_ghash_4bit_mmx, X, Htable, buf, 16 * blocks);
}
#else
CHECK_ABI(gcm_gmult_4bit, X, Htable);
for (size_t blocks : kBlockCounts) {
CHECK_ABI(gcm_ghash_4bit, X, Htable, buf, 16 * blocks);
}
#endif // GHASH_ASM_X86
#if defined(GHASH_ASM_X86_64)
if (gcm_ssse3_capable()) {
CHECK_ABI(gcm_init_ssse3, Htable, kH);
CHECK_ABI(gcm_gmult_ssse3, X, Htable);
for (size_t blocks : kBlockCounts) {
CHECK_ABI(gcm_ghash_ssse3, X, Htable, buf, 16 * blocks);
}
}
#endif // GHASH_ASM_X86_64
#if defined(GHASH_ASM_X86) || defined(GHASH_ASM_X86_64)
if (crypto_gcm_clmul_enabled()) {
CHECK_ABI(gcm_init_clmul, Htable, kH);
CHECK_ABI(gcm_gmult_clmul, X, Htable);
for (size_t blocks : kBlockCounts) {
CHECK_ABI(gcm_ghash_clmul, X, Htable, buf, 16 * blocks);
}
#if defined(GHASH_ASM_X86_64)
if (((OPENSSL_ia32cap_get()[1] >> 22) & 0x41) == 0x41) { // AVX+MOVBE
CHECK_ABI(gcm_init_avx, Htable, kH);
CHECK_ABI(gcm_gmult_avx, X, Htable);
for (size_t blocks : kBlockCounts) {
CHECK_ABI(gcm_ghash_avx, X, Htable, buf, 16 * blocks);
}
}
#endif // GHASH_ASM_X86_64
}
#endif // GHASH_ASM_X86 || GHASH_ASM_X86_64
}
#if defined(OPENSSL_WINDOWS) && defined(GHASH_ASM_X86_64)
// Sanity-check the SEH unwind codes in ghash-ssse3-x86_64.pl.
// TODO(davidben): Implement unwind testing for SEH and remove this.
static void GCMSSSE3ExceptionTest() {
if (!gcm_ssse3_capable()) {
return;
}
bool handled = false;
__try {
gcm_gmult_ssse3(nullptr, nullptr);
} __except (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION
? EXCEPTION_EXECUTE_HANDLER
: EXCEPTION_CONTINUE_SEARCH) {
handled = true;
}
EXPECT_TRUE(handled);
handled = false;
__try {
gcm_ghash_ssse3(nullptr, nullptr, nullptr, 16);
} __except (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION
? EXCEPTION_EXECUTE_HANDLER
: EXCEPTION_CONTINUE_SEARCH) {
handled = true;
}
EXPECT_TRUE(handled);
}
TEST(GCMTest, SEH) {
CHECK_ABI_NO_UNWIND(GCMSSSE3ExceptionTest);
}
#endif // OPENSSL_WINDOWS && GHASH_ASM_X86_64
#endif // SUPPORTS_ABI_TEST && GHASH_ASM