| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| * All rights reserved. |
| * |
| * This package is an SSL implementation written |
| * by Eric Young (eay@cryptsoft.com). |
| * The implementation was written so as to conform with Netscapes SSL. |
| * |
| * This library is free for commercial and non-commercial use as long as |
| * the following conditions are aheared to. The following conditions |
| * apply to all code found in this distribution, be it the RC4, RSA, |
| * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| * included with this distribution is covered by the same copyright terms |
| * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| * |
| * Copyright remains Eric Young's, and as such any Copyright notices in |
| * the code are not to be removed. |
| * If this package is used in a product, Eric Young should be given attribution |
| * as the author of the parts of the library used. |
| * This can be in the form of a textual message at program startup or |
| * in documentation (online or textual) provided with the package. |
| * |
| * 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 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 acknowledgement: |
| * "This product includes cryptographic software written by |
| * Eric Young (eay@cryptsoft.com)" |
| * The word 'cryptographic' can be left out if the rouines from the library |
| * being used are not cryptographic related :-). |
| * 4. If you include any Windows specific code (or a derivative thereof) from |
| * the apps directory (application code) you must include an acknowledgement: |
| * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| * ANY EXPRESS 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 AUTHOR OR 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. |
| * |
| * The licence and distribution terms for any publically available version or |
| * derivative of this code cannot be changed. i.e. this code cannot simply be |
| * copied and put under another distribution licence |
| * [including the GNU Public Licence.] */ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include <gtest/gtest.h> |
| |
| #include <openssl/digest.h> |
| #include <openssl/hmac.h> |
| |
| #include "../test/file_test.h" |
| #include "../test/test_util.h" |
| #include "../test/wycheproof_util.h" |
| |
| |
| static const EVP_MD *GetDigest(const std::string &name) { |
| if (name == "MD5") { |
| return EVP_md5(); |
| } else if (name == "SHA1") { |
| return EVP_sha1(); |
| } else if (name == "SHA224") { |
| return EVP_sha224(); |
| } else if (name == "SHA256") { |
| return EVP_sha256(); |
| } else if (name == "SHA384") { |
| return EVP_sha384(); |
| } else if (name == "SHA512") { |
| return EVP_sha512(); |
| } |
| return nullptr; |
| } |
| |
| TEST(HMACTest, TestVectors) { |
| FileTestGTest("crypto/hmac_extra/hmac_tests.txt", [](FileTest *t) { |
| std::string digest_str; |
| ASSERT_TRUE(t->GetAttribute(&digest_str, "HMAC")); |
| const EVP_MD *digest = GetDigest(digest_str); |
| ASSERT_TRUE(digest) << "Unknown digest: " << digest_str; |
| |
| std::vector<uint8_t> key, input, output; |
| ASSERT_TRUE(t->GetBytes(&key, "Key")); |
| ASSERT_TRUE(t->GetBytes(&input, "Input")); |
| ASSERT_TRUE(t->GetBytes(&output, "Output")); |
| ASSERT_EQ(EVP_MD_size(digest), output.size()); |
| |
| // Test using the one-shot API. |
| unsigned expected_mac_len = EVP_MD_size(digest); |
| std::unique_ptr<uint8_t[]> mac(new uint8_t[expected_mac_len]); |
| unsigned mac_len; |
| ASSERT_TRUE(HMAC(digest, key.data(), key.size(), input.data(), input.size(), |
| mac.get(), &mac_len)); |
| EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len)); |
| |
| // Test using HMAC_CTX. |
| bssl::ScopedHMAC_CTX ctx; |
| ASSERT_TRUE( |
| HMAC_Init_ex(ctx.get(), key.data(), key.size(), digest, nullptr)); |
| ASSERT_TRUE(HMAC_Update(ctx.get(), input.data(), input.size())); |
| ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len)); |
| EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len)); |
| |
| // Test that an HMAC_CTX may be reset with the same key. |
| ASSERT_TRUE(HMAC_Init_ex(ctx.get(), nullptr, 0, digest, nullptr)); |
| ASSERT_TRUE(HMAC_Update(ctx.get(), input.data(), input.size())); |
| ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len)); |
| EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len)); |
| |
| // Test feeding the input in byte by byte. |
| ASSERT_TRUE(HMAC_Init_ex(ctx.get(), nullptr, 0, nullptr, nullptr)); |
| for (size_t i = 0; i < input.size(); i++) { |
| ASSERT_TRUE(HMAC_Update(ctx.get(), &input[i], 1)); |
| } |
| ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len)); |
| EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len)); |
| }); |
| } |
| |
| static void RunWycheproofTest(const char *path, const EVP_MD *md) { |
| SCOPED_TRACE(path); |
| FileTestGTest(path, [&](FileTest *t) { |
| t->IgnoreInstruction("keySize"); |
| t->IgnoreInstruction("tagSize"); |
| std::vector<uint8_t> key, msg, tag; |
| ASSERT_TRUE(t->GetBytes(&key, "key")); |
| ASSERT_TRUE(t->GetBytes(&msg, "msg")); |
| ASSERT_TRUE(t->GetBytes(&tag, "tag")); |
| WycheproofResult result; |
| ASSERT_TRUE(GetWycheproofResult(t, &result)); |
| |
| if (!result.IsValid()) { |
| // Wycheproof tests assume the HMAC implementation checks the MAC. Ours |
| // simply computes the HMAC, so skip the tests with invalid outputs. |
| return; |
| } |
| |
| uint8_t out[EVP_MAX_MD_SIZE]; |
| unsigned out_len; |
| ASSERT_TRUE(HMAC(md, key.data(), key.size(), msg.data(), msg.size(), out, |
| &out_len)); |
| // Wycheproof tests truncate the tags down to |tagSize|. |
| ASSERT_LE(tag.size(), out_len); |
| EXPECT_EQ(Bytes(out, tag.size()), Bytes(tag)); |
| }); |
| } |
| |
| TEST(HMACTest, WycheproofSHA1) { |
| RunWycheproofTest("third_party/wycheproof_testvectors/hmac_sha1_test.txt", |
| EVP_sha1()); |
| } |
| |
| TEST(HMACTest, WycheproofSHA224) { |
| RunWycheproofTest("third_party/wycheproof_testvectors/hmac_sha224_test.txt", |
| EVP_sha224()); |
| } |
| |
| TEST(HMACTest, WycheproofSHA256) { |
| RunWycheproofTest("third_party/wycheproof_testvectors/hmac_sha256_test.txt", |
| EVP_sha256()); |
| } |
| |
| TEST(HMACTest, WycheproofSHA384) { |
| RunWycheproofTest("third_party/wycheproof_testvectors/hmac_sha384_test.txt", |
| EVP_sha384()); |
| } |
| |
| TEST(HMACTest, WycheproofSHA512) { |
| RunWycheproofTest("third_party/wycheproof_testvectors/hmac_sha512_test.txt", |
| EVP_sha512()); |
| } |