|  | /* ==================================================================== | 
|  | * 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, | 
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|  | * 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 "../../internal.h" | 
|  | #include "../../test/abi_test.h" | 
|  | #include "../../test/file_test.h" | 
|  | #include "../../test/test_util.h" | 
|  | #include "../aes/internal.h" | 
|  | #include "internal.h" | 
|  |  | 
|  |  | 
|  | 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(OPENSSL_NO_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, 5, 6, 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]; | 
|  | #if defined(GHASH_ASM_X86) || defined(GHASH_ASM_X86_64) | 
|  | if (CRYPTO_is_SSSE3_capable()) { | 
|  | CHECK_ABI_SEH(gcm_init_ssse3, Htable, kH); | 
|  | CHECK_ABI_SEH(gcm_gmult_ssse3, X, Htable); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI_SEH(gcm_ghash_ssse3, X, Htable, buf, 16 * blocks); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (crypto_gcm_clmul_enabled()) { | 
|  | CHECK_ABI_SEH(gcm_init_clmul, Htable, kH); | 
|  | CHECK_ABI_SEH(gcm_gmult_clmul, X, Htable); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI_SEH(gcm_ghash_clmul, X, Htable, buf, 16 * blocks); | 
|  | } | 
|  |  | 
|  | #if defined(GHASH_ASM_X86_64) | 
|  | if (CRYPTO_is_AVX_capable() && CRYPTO_is_MOVBE_capable()) { | 
|  | CHECK_ABI_SEH(gcm_init_avx, Htable, kH); | 
|  | CHECK_ABI_SEH(gcm_gmult_avx, X, Htable); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI_SEH(gcm_ghash_avx, X, Htable, buf, 16 * blocks); | 
|  | } | 
|  |  | 
|  | if (hwaes_capable()) { | 
|  | AES_KEY aes_key; | 
|  | static const uint8_t kKey[16] = {0}; | 
|  |  | 
|  | // aesni_gcm_* makes assumptions about |GCM128_CONTEXT|'s layout. | 
|  | GCM128_CONTEXT gcm; | 
|  | memset(&gcm, 0, sizeof(gcm)); | 
|  | memcpy(&gcm.gcm_key.H, kH, sizeof(kH)); | 
|  | memcpy(&gcm.gcm_key.Htable, Htable, sizeof(Htable)); | 
|  | memcpy(&gcm.Xi, X, sizeof(X)); | 
|  | uint8_t iv[16] = {0}; | 
|  |  | 
|  | aes_hw_set_encrypt_key(kKey, 128, &aes_key); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI(aesni_gcm_encrypt, buf, buf, blocks * 16, &aes_key, iv, | 
|  | gcm.Xi.u); | 
|  | CHECK_ABI(aesni_gcm_encrypt, buf, buf, blocks * 16 + 7, &aes_key, iv, | 
|  | gcm.Xi.u); | 
|  | } | 
|  | aes_hw_set_decrypt_key(kKey, 128, &aes_key); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI(aesni_gcm_decrypt, buf, buf, blocks * 16, &aes_key, iv, | 
|  | gcm.Xi.u); | 
|  | CHECK_ABI(aesni_gcm_decrypt, buf, buf, blocks * 16 + 7, &aes_key, iv, | 
|  | gcm.Xi.u); | 
|  | } | 
|  | } | 
|  | } | 
|  | #endif  // GHASH_ASM_X86_64 | 
|  | } | 
|  | #endif  // GHASH_ASM_X86 || GHASH_ASM_X86_64 | 
|  |  | 
|  | #if defined(GHASH_ASM_ARM) | 
|  | if (gcm_neon_capable()) { | 
|  | CHECK_ABI(gcm_init_neon, Htable, kH); | 
|  | CHECK_ABI(gcm_gmult_neon, X, Htable); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI(gcm_ghash_neon, X, Htable, buf, 16 * blocks); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (gcm_pmull_capable()) { | 
|  | CHECK_ABI(gcm_init_v8, Htable, kH); | 
|  | CHECK_ABI(gcm_gmult_v8, X, Htable); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI(gcm_ghash_v8, X, Htable, buf, 16 * blocks); | 
|  | } | 
|  | } | 
|  | #endif  // GHASH_ASM_ARM | 
|  |  | 
|  | #if defined(GHASH_ASM_PPC64LE) | 
|  | if (CRYPTO_is_PPC64LE_vcrypto_capable()) { | 
|  | CHECK_ABI(gcm_init_p8, Htable, kH); | 
|  | CHECK_ABI(gcm_gmult_p8, X, Htable); | 
|  | for (size_t blocks : kBlockCounts) { | 
|  | CHECK_ABI(gcm_ghash_p8, X, Htable, buf, 16 * blocks); | 
|  | } | 
|  | } | 
|  | #endif  // GHASH_ASM_PPC64LE | 
|  | } | 
|  | #endif  // SUPPORTS_ABI_TEST && !OPENSSL_NO_ASM |