| /* |
| * Copyright (C) 2013 Apple Inc. 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. |
| * |
| * 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 <CommonCrypto/CommonCrypto.h> |
| |
| namespace PAL { |
| |
| struct CryptoDigestContext { |
| CryptoDigest::Algorithm algorithm; |
| void* ccContext; |
| }; |
| |
| inline CC_SHA1_CTX* toSHA1Context(CryptoDigestContext* context) |
| { |
| ASSERT(context->algorithm == CryptoDigest::Algorithm::SHA_1); |
| return static_cast<CC_SHA1_CTX*>(context->ccContext); |
| } |
| inline CC_SHA256_CTX* toSHA224Context(CryptoDigestContext* context) |
| { |
| ASSERT(context->algorithm == CryptoDigest::Algorithm::SHA_224); |
| return static_cast<CC_SHA256_CTX*>(context->ccContext); |
| } |
| inline CC_SHA256_CTX* toSHA256Context(CryptoDigestContext* context) |
| { |
| ASSERT(context->algorithm == CryptoDigest::Algorithm::SHA_256); |
| return static_cast<CC_SHA256_CTX*>(context->ccContext); |
| } |
| inline CC_SHA512_CTX* toSHA384Context(CryptoDigestContext* context) |
| { |
| ASSERT(context->algorithm == CryptoDigest::Algorithm::SHA_384); |
| return static_cast<CC_SHA512_CTX*>(context->ccContext); |
| } |
| inline CC_SHA512_CTX* toSHA512Context(CryptoDigestContext* context) |
| { |
| ASSERT(context->algorithm == CryptoDigest::Algorithm::SHA_512); |
| return static_cast<CC_SHA512_CTX*>(context->ccContext); |
| } |
| |
| CryptoDigest::CryptoDigest() |
| : m_context(new CryptoDigestContext) |
| { |
| } |
| |
| CryptoDigest::~CryptoDigest() |
| { |
| switch (m_context->algorithm) { |
| case CryptoDigest::Algorithm::SHA_1: |
| delete toSHA1Context(m_context.get()); |
| return; |
| case CryptoDigest::Algorithm::SHA_224: |
| delete toSHA224Context(m_context.get()); |
| return; |
| case CryptoDigest::Algorithm::SHA_256: |
| delete toSHA256Context(m_context.get()); |
| return; |
| case CryptoDigest::Algorithm::SHA_384: |
| delete toSHA384Context(m_context.get()); |
| return; |
| case CryptoDigest::Algorithm::SHA_512: |
| delete toSHA512Context(m_context.get()); |
| return; |
| } |
| } |
| |
| |
| std::unique_ptr<CryptoDigest> CryptoDigest::create(CryptoDigest::Algorithm algorithm) |
| { |
| std::unique_ptr<CryptoDigest> digest(new CryptoDigest); |
| digest->m_context->algorithm = algorithm; |
| |
| switch (algorithm) { |
| case CryptoDigest::Algorithm::SHA_1: { |
| CC_SHA1_CTX* context = new CC_SHA1_CTX; |
| digest->m_context->ccContext = context; |
| ALLOW_DEPRECATED_DECLARATIONS_BEGIN |
| CC_SHA1_Init(context); |
| ALLOW_DEPRECATED_DECLARATIONS_END |
| return digest; |
| } |
| case CryptoDigest::Algorithm::SHA_224: { |
| CC_SHA256_CTX* context = new CC_SHA256_CTX; |
| digest->m_context->ccContext = context; |
| CC_SHA224_Init(context); |
| return digest; |
| } |
| case CryptoDigest::Algorithm::SHA_256: { |
| CC_SHA256_CTX* context = new CC_SHA256_CTX; |
| digest->m_context->ccContext = context; |
| CC_SHA256_Init(context); |
| return digest; |
| } |
| case CryptoDigest::Algorithm::SHA_384: { |
| CC_SHA512_CTX* context = new CC_SHA512_CTX; |
| digest->m_context->ccContext = context; |
| CC_SHA384_Init(context); |
| return digest; |
| } |
| case CryptoDigest::Algorithm::SHA_512: { |
| CC_SHA512_CTX* context = new CC_SHA512_CTX; |
| digest->m_context->ccContext = context; |
| CC_SHA512_Init(context); |
| return digest; |
| } |
| } |
| } |
| |
| void CryptoDigest::addBytes(const void* input, size_t length) |
| { |
| switch (m_context->algorithm) { |
| case CryptoDigest::Algorithm::SHA_1: |
| ALLOW_DEPRECATED_DECLARATIONS_BEGIN |
| CC_SHA1_Update(toSHA1Context(m_context.get()), input, length); |
| ALLOW_DEPRECATED_DECLARATIONS_END |
| return; |
| case CryptoDigest::Algorithm::SHA_224: |
| CC_SHA224_Update(toSHA224Context(m_context.get()), input, length); |
| return; |
| case CryptoDigest::Algorithm::SHA_256: |
| CC_SHA256_Update(toSHA256Context(m_context.get()), input, length); |
| return; |
| case CryptoDigest::Algorithm::SHA_384: |
| CC_SHA384_Update(toSHA384Context(m_context.get()), input, length); |
| return; |
| case CryptoDigest::Algorithm::SHA_512: |
| CC_SHA512_Update(toSHA512Context(m_context.get()), input, length); |
| return; |
| } |
| } |
| |
| Vector<uint8_t> CryptoDigest::computeHash() |
| { |
| Vector<uint8_t> result; |
| switch (m_context->algorithm) { |
| case CryptoDigest::Algorithm::SHA_1: |
| result.resize(CC_SHA1_DIGEST_LENGTH); |
| ALLOW_DEPRECATED_DECLARATIONS_BEGIN |
| CC_SHA1_Final(result.data(), toSHA1Context(m_context.get())); |
| ALLOW_DEPRECATED_DECLARATIONS_END |
| break; |
| case CryptoDigest::Algorithm::SHA_224: |
| result.resize(CC_SHA224_DIGEST_LENGTH); |
| CC_SHA224_Final(result.data(), toSHA224Context(m_context.get())); |
| break; |
| case CryptoDigest::Algorithm::SHA_256: |
| result.resize(CC_SHA256_DIGEST_LENGTH); |
| CC_SHA256_Final(result.data(), toSHA256Context(m_context.get())); |
| break; |
| case CryptoDigest::Algorithm::SHA_384: |
| result.resize(CC_SHA384_DIGEST_LENGTH); |
| CC_SHA384_Final(result.data(), toSHA384Context(m_context.get())); |
| break; |
| case CryptoDigest::Algorithm::SHA_512: |
| result.resize(CC_SHA512_DIGEST_LENGTH); |
| CC_SHA512_Final(result.data(), toSHA512Context(m_context.get())); |
| break; |
| } |
| return result; |
| } |
| |
| } // namespace PAL |