131 lines
5.5 KiB
C++
131 lines
5.5 KiB
C++
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#include <memory>
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#include <string>
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#include <vector>
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#include <gtest/gtest.h>
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#include <openssl/digest.h>
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#include <openssl/hmac.h>
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#include "../test/file_test.h"
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#include "../test/test_util.h"
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static const EVP_MD *GetDigest(const std::string &name) {
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if (name == "MD5") {
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return EVP_md5();
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} else if (name == "SHA1") {
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return EVP_sha1();
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} else if (name == "SHA224") {
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return EVP_sha224();
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} else if (name == "SHA256") {
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return EVP_sha256();
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} else if (name == "SHA384") {
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return EVP_sha384();
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} else if (name == "SHA512") {
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return EVP_sha512();
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}
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return nullptr;
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}
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TEST(HMACTest, TestVectors) {
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FileTestGTest("crypto/hmac_extra/hmac_tests.txt", [](FileTest *t) {
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std::string digest_str;
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ASSERT_TRUE(t->GetAttribute(&digest_str, "HMAC"));
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const EVP_MD *digest = GetDigest(digest_str);
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ASSERT_TRUE(digest) << "Unknown digest: " << digest_str;
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std::vector<uint8_t> key, input, output;
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ASSERT_TRUE(t->GetBytes(&key, "Key"));
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ASSERT_TRUE(t->GetBytes(&input, "Input"));
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ASSERT_TRUE(t->GetBytes(&output, "Output"));
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ASSERT_EQ(EVP_MD_size(digest), output.size());
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// Test using the one-shot API.
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unsigned expected_mac_len = EVP_MD_size(digest);
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std::unique_ptr<uint8_t[]> mac(new uint8_t[expected_mac_len]);
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unsigned mac_len;
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ASSERT_TRUE(HMAC(digest, key.data(), key.size(), input.data(), input.size(),
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mac.get(), &mac_len));
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EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
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// Test using HMAC_CTX.
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bssl::ScopedHMAC_CTX ctx;
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ASSERT_TRUE(
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HMAC_Init_ex(ctx.get(), key.data(), key.size(), digest, nullptr));
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ASSERT_TRUE(HMAC_Update(ctx.get(), input.data(), input.size()));
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ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len));
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EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
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// Test that an HMAC_CTX may be reset with the same key.
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ASSERT_TRUE(HMAC_Init_ex(ctx.get(), nullptr, 0, digest, nullptr));
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ASSERT_TRUE(HMAC_Update(ctx.get(), input.data(), input.size()));
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ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len));
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EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
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// Test feeding the input in byte by byte.
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ASSERT_TRUE(HMAC_Init_ex(ctx.get(), nullptr, 0, nullptr, nullptr));
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for (size_t i = 0; i < input.size(); i++) {
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ASSERT_TRUE(HMAC_Update(ctx.get(), &input[i], 1));
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}
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ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len));
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EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
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});
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}
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