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/*
* Copyright (C) 2017 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 "CryptoAlgorithmPBKDF2.h"
#if ENABLE(WEB_CRYPTO)
#include "CryptoAlgorithmPbkdf2Params.h"
#include "CryptoKeyRaw.h"
#include <CommonCrypto/CommonKeyDerivation.h>
namespace WebCore {
namespace CryptoAlgorithmPBKDF2MacInternal {
static CCPseudoRandomAlgorithm commonCryptoHMACAlgorithm(CryptoAlgorithmIdentifier hashFunction)
{
switch (hashFunction) {
case CryptoAlgorithmIdentifier::SHA_1:
return kCCPRFHmacAlgSHA1;
case CryptoAlgorithmIdentifier::SHA_224:
return kCCPRFHmacAlgSHA224;
case CryptoAlgorithmIdentifier::SHA_256:
return kCCPRFHmacAlgSHA256;
case CryptoAlgorithmIdentifier::SHA_384:
return kCCPRFHmacAlgSHA384;
case CryptoAlgorithmIdentifier::SHA_512:
return kCCPRFHmacAlgSHA512;
default:
ASSERT_NOT_REACHED();
return 0;
}
}
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmPBKDF2::platformDeriveBits(const CryptoAlgorithmPbkdf2Params& parameters, const CryptoKeyRaw& key, size_t length)
{
Vector<uint8_t> result(length / 8);
// <rdar://problem/32439955> Currently, CCKeyDerivationPBKDF bails out when an empty password/salt is provided.
if (CCKeyDerivationPBKDF(kCCPBKDF2, reinterpret_cast<const char *>(key.key().data()), key.key().size(), parameters.saltVector().data(), parameters.saltVector().size(), CryptoAlgorithmPBKDF2MacInternal::commonCryptoHMACAlgorithm(parameters.hashIdentifier), parameters.iterations, result.data(), length / 8))
return Exception { OperationError };
return WTFMove(result);
}
}
#endif // ENABLE(WEB_CRYPTO)