1/* 2 * Copyright (C) 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "CryptoKey.h" 28 29#if ENABLE(SUBTLE_CRYPTO) 30 31#include "CryptoAlgorithmDescriptionBuilder.h" 32#include "CryptoAlgorithmRegistry.h" 33#include <wtf/CryptographicallyRandomNumber.h> 34#include <wtf/text/WTFString.h> 35 36namespace WebCore { 37 38CryptoKey::CryptoKey(CryptoAlgorithmIdentifier algorithm, CryptoKeyType type, bool extractable, CryptoKeyUsage usages) 39 : m_algorithm(algorithm) 40 , m_type(type) 41 , m_extractable(extractable) 42 , m_usages(usages) 43{ 44} 45 46CryptoKey::~CryptoKey() 47{ 48} 49 50String CryptoKey::type() const 51{ 52 switch (m_type) { 53 case CryptoKeyType::Secret: 54 return ASCIILiteral("secret"); 55 case CryptoKeyType::Public: 56 return ASCIILiteral("public"); 57 case CryptoKeyType::Private: 58 return ASCIILiteral("private"); 59 } 60} 61 62void CryptoKey::buildAlgorithmDescription(CryptoAlgorithmDescriptionBuilder& builder) const 63{ 64 builder.add("name", CryptoAlgorithmRegistry::shared().nameForIdentifier(m_algorithm)); 65 // Subclasses will add other keys. 66} 67 68Vector<String> CryptoKey::usages() const 69{ 70 // The result is ordered alphabetically. 71 Vector<String> result; 72 if (m_usages & CryptoKeyUsageDecrypt) 73 result.append(ASCIILiteral("decrypt")); 74 if (m_usages & CryptoKeyUsageDeriveBits) 75 result.append(ASCIILiteral("deriveBits")); 76 if (m_usages & CryptoKeyUsageDeriveKey) 77 result.append(ASCIILiteral("deriveKey")); 78 if (m_usages & CryptoKeyUsageEncrypt) 79 result.append(ASCIILiteral("encrypt")); 80 if (m_usages & CryptoKeyUsageSign) 81 result.append(ASCIILiteral("sign")); 82 if (m_usages & CryptoKeyUsageUnwrapKey) 83 result.append(ASCIILiteral("unwrapKey")); 84 if (m_usages & CryptoKeyUsageVerify) 85 result.append(ASCIILiteral("verify")); 86 if (m_usages & CryptoKeyUsageWrapKey) 87 result.append(ASCIILiteral("wrapKey")); 88 89 return result; 90} 91 92#if !OS(DARWIN) || PLATFORM(EFL) || PLATFORM(GTK) 93Vector<uint8_t> CryptoKey::randomData(size_t size) 94{ 95 Vector<uint8_t> result(size); 96 cryptographicallyRandomValues(result.data(), result.size()); 97 return result; 98} 99#endif 100} // namespace WebCore 101 102#endif // ENABLE(SUBTLE_CRYPTO) 103