/* * Copyright (C) 2011 Google Inc. All rights reserved. * 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. * 3. Neither the name of Google, Inc. ("Google") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY GOOGLE 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 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 "Crypto.h" #include "Document.h" #include "SubtleCrypto.h" #include <runtime/ArrayBufferView.h> #include <wtf/CryptographicallyRandomNumber.h> #if OS(DARWIN) #include "CommonCryptoUtilities.h" #endif namespace WebCore { Crypto::Crypto(ScriptExecutionContext& context) : ContextDestructionObserver(&context) #if ENABLE(SUBTLE_CRYPTO) , m_subtle(SubtleCrypto::create(context)) #endif { } Crypto::~Crypto() = default; ExceptionOr<void> Crypto::getRandomValues(ArrayBufferView& array) { if (!isInt(array.getType())) return Exception { TypeMismatchError }; if (array.byteLength() > 65536) return Exception { QuotaExceededError }; #if OS(DARWIN) int rc = CCRandomCopyBytes(kCCRandomDefault, array.baseAddress(), array.byteLength()); RELEASE_ASSERT(rc == kCCSuccess); #else cryptographicallyRandomValues(array.baseAddress(), array.byteLength()); #endif return { }; } #if ENABLE(SUBTLE_CRYPTO) SubtleCrypto& Crypto::subtle() { return m_subtle; } #endif }