| /* |
| * Copyright (C) 2018 Sony Interactive Entertainment Inc. |
| * |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``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 APPLE INC. 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 "config.h" |
| #include "CryptoDigest.h" |
| |
| #include <openssl/sha.h> |
| |
| namespace { |
| struct SHA1Functions { |
| static constexpr auto init = SHA1_Init; |
| static constexpr auto update = SHA1_Update; |
| static constexpr auto final = SHA1_Final; |
| static constexpr size_t digestLength = SHA_DIGEST_LENGTH; |
| }; |
| |
| struct SHA224Functions { |
| static constexpr auto init = SHA224_Init; |
| static constexpr auto update = SHA224_Update; |
| static constexpr auto final = SHA224_Final; |
| static constexpr size_t digestLength = SHA224_DIGEST_LENGTH; |
| }; |
| |
| struct SHA256Functions { |
| static constexpr auto init = SHA256_Init; |
| static constexpr auto update = SHA256_Update; |
| static constexpr auto final = SHA256_Final; |
| static constexpr size_t digestLength = SHA256_DIGEST_LENGTH; |
| }; |
| |
| struct SHA384Functions { |
| static constexpr auto init = SHA384_Init; |
| static constexpr auto update = SHA384_Update; |
| static constexpr auto final = SHA384_Final; |
| static constexpr size_t digestLength = SHA384_DIGEST_LENGTH; |
| }; |
| |
| struct SHA512Functions { |
| static constexpr auto init = SHA512_Init; |
| static constexpr auto update = SHA512_Update; |
| static constexpr auto final = SHA512_Final; |
| static constexpr size_t digestLength = SHA512_DIGEST_LENGTH; |
| }; |
| } |
| |
| namespace PAL { |
| |
| struct CryptoDigestContext { |
| virtual ~CryptoDigestContext() = default; |
| virtual void addBytes(const void* input, size_t length) = 0; |
| virtual Vector<uint8_t> computeHash() = 0; |
| }; |
| |
| template <typename SHAContext, typename SHAFunctions> |
| struct CryptoDigestContextImpl : public CryptoDigestContext { |
| WTF_MAKE_STRUCT_FAST_ALLOCATED; |
| |
| static std::unique_ptr<CryptoDigestContext> create() |
| { |
| return makeUnique<CryptoDigestContextImpl>(); |
| } |
| |
| CryptoDigestContextImpl() |
| { |
| SHAFunctions::init(&m_context); |
| } |
| |
| void addBytes(const void* input, size_t length) override |
| { |
| SHAFunctions::update(&m_context, input, length); |
| } |
| |
| Vector<uint8_t> computeHash() override |
| { |
| Vector<uint8_t> result(SHAFunctions::digestLength); |
| SHAFunctions::final(result.data(), &m_context); |
| return result; |
| } |
| |
| private: |
| SHAContext m_context; |
| }; |
| |
| CryptoDigest::CryptoDigest() |
| { |
| } |
| |
| CryptoDigest::~CryptoDigest() |
| { |
| } |
| |
| std::unique_ptr<CryptoDigest> CryptoDigest::create(CryptoDigest::Algorithm algorithm) |
| { |
| std::unique_ptr<CryptoDigest> digest(new CryptoDigest); |
| |
| switch (algorithm) { |
| case CryptoDigest::Algorithm::SHA_1: |
| digest->m_context = CryptoDigestContextImpl<SHA_CTX, SHA1Functions>::create(); |
| return digest; |
| case CryptoDigest::Algorithm::SHA_224: |
| digest->m_context = CryptoDigestContextImpl<SHA256_CTX, SHA224Functions>::create(); |
| return digest; |
| case CryptoDigest::Algorithm::SHA_256: |
| digest->m_context = CryptoDigestContextImpl<SHA256_CTX, SHA256Functions>::create(); |
| return digest; |
| case CryptoDigest::Algorithm::SHA_384: |
| digest->m_context = CryptoDigestContextImpl<SHA512_CTX, SHA384Functions>::create(); |
| return digest; |
| case CryptoDigest::Algorithm::SHA_512: |
| digest->m_context = CryptoDigestContextImpl<SHA512_CTX, SHA512Functions>::create(); |
| return digest; |
| } |
| |
| return nullptr; |
| } |
| |
| void CryptoDigest::addBytes(const void* input, size_t length) |
| { |
| ASSERT(m_context); |
| m_context->addBytes(input, length); |
| } |
| |
| Vector<uint8_t> CryptoDigest::computeHash() |
| { |
| ASSERT(m_context); |
| return m_context->computeHash(); |
| } |
| |
| } // namespace PAL |