chromium/components/webcrypto/algorithms/rsa_pss_unittest.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <stddef.h>
#include <stdint.h>

#include "base/strings/string_number_conversions.h"
#include "components/webcrypto/algorithm_dispatch.h"
#include "components/webcrypto/algorithms/test_helpers.h"
#include "components/webcrypto/jwk.h"
#include "components/webcrypto/status.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/web_crypto_algorithm_params.h"
#include "third_party/blink/public/platform/web_crypto_key.h"
#include "third_party/blink/public/platform/web_crypto_key_algorithm.h"

namespace webcrypto {

namespace {

blink::WebCryptoAlgorithm CreateRsaPssAlgorithm(
    unsigned int salt_length_bytes) { … }

class WebCryptoRsaPssTest : public WebCryptoTestBase { … };

// Test that no two RSA-PSS signatures are identical, when using a non-zero
// lengthed salt.
TEST_F(WebCryptoRsaPssTest, SignIsRandom) { … }

// Try signing and verifying when the salt length is 0. The signature in this
// case is not random.
TEST_F(WebCryptoRsaPssTest, SignVerifyNoSalt) { … }

TEST_F(WebCryptoRsaPssTest, SignEmptyMessage) { … }

// RSA-PSS known answer tests:
const char kKey1[] = …;

const char kKey2[] = …;

const char kNistTestMessage[] = …;

struct RsaPssKnownAnswer { … };

const RsaPssKnownAnswer kRsaPssKnownAnswers[] = …;

blink::WebCryptoKey RsaPssKeyFromBytes(blink::WebCryptoAlgorithmId hash,
                                       const char* key) { … }

bool VerifySignature(size_t salt_length,
                     blink::WebCryptoKey pubkey,
                     const std::vector<uint8_t>& signature,
                     const std::vector<uint8_t>& message) { … }

// Iterate through known answers and test verification.
//   * Verify over original message should succeed
//   * Verify over corrupted message should fail
//   * Verification with corrupted signature should fail
TEST_F(WebCryptoRsaPssTest, VerifyKnownAnswer) { … }

}  // namespace

}  // namespace webcrypto