75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
/*
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* Copyright (C) 2013 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "CryptoAlgorithmAES_KW.h"
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#if ENABLE(WEB_CRYPTO)
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#include "CryptoKeyAES.h"
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#include <CommonCrypto/CommonCrypto.h>
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namespace WebCore {
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static ExceptionOr<Vector<uint8_t>> wrapKeyAES_KW(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
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{
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Vector<uint8_t> result(CCSymmetricWrappedSize(kCCWRAPAES, data.size()));
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size_t resultSize = result.size();
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if (CCSymmetricKeyWrap(kCCWRAPAES, CCrfc3394_iv, CCrfc3394_ivLen, key.data(), key.size(), data.data(), data.size(), result.data(), &resultSize))
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return Exception { OperationError };
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result.shrink(resultSize);
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return WTFMove(result);
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}
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static ExceptionOr<Vector<uint8_t>> unwrapKeyAES_KW(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
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{
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Vector<uint8_t> result(CCSymmetricUnwrappedSize(kCCWRAPAES, data.size()));
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size_t resultSize = result.size();
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if (resultSize % 8)
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return Exception { OperationError };
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if (CCSymmetricKeyUnwrap(kCCWRAPAES, CCrfc3394_iv, CCrfc3394_ivLen, key.data(), key.size(), data.data(), data.size(), result.data(), &resultSize))
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return Exception { OperationError };
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result.shrink(resultSize);
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return WTFMove(result);
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}
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ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformWrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
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{
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return wrapKeyAES_KW(key.key(), data);
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}
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ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformUnwrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
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{
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return unwrapKeyAES_KW(key.key(), data);
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}
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} // namespace WebCore
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#endif // ENABLE(WEB_CRYPTO)
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