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/*
* 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 "CryptoAlgorithmRSA_OAEP.h"
#if ENABLE(SUBTLE_CRYPTO)
#include "CryptoAlgorithmRsaKeyGenParams.h"
#include "CryptoAlgorithmRsaKeyParamsWithHash.h"
#include "CryptoAlgorithmRsaOaepParams.h"
#include "CryptoKeyDataRSAComponents.h"
#include "CryptoKeyRSA.h"
#include "ExceptionCode.h"
namespace WebCore {
const char* const CryptoAlgorithmRSA_OAEP::s_name = "RSA-OAEP";
CryptoAlgorithmRSA_OAEP::CryptoAlgorithmRSA_OAEP()
{
}
CryptoAlgorithmRSA_OAEP::~CryptoAlgorithmRSA_OAEP()
{
}
std::unique_ptr<CryptoAlgorithm> CryptoAlgorithmRSA_OAEP::create()
{
return std::unique_ptr<CryptoAlgorithm>(new CryptoAlgorithmRSA_OAEP);
}
CryptoAlgorithmIdentifier CryptoAlgorithmRSA_OAEP::identifier() const
{
return s_identifier;
}
bool CryptoAlgorithmRSA_OAEP::keyAlgorithmMatches(const CryptoAlgorithmRsaOaepParams& algorithmParameters, const CryptoKey& key) const
{
if (key.algorithmIdentifier() != s_identifier)
return false;
ASSERT(isCryptoKeyRSA(key));
CryptoAlgorithmIdentifier keyHash;
if (toCryptoKeyRSA(key).isRestrictedToHash(keyHash) && keyHash != algorithmParameters.hash)
return false;
return true;
}
void CryptoAlgorithmRSA_OAEP::encrypt(const CryptoAlgorithmParameters& parameters, const CryptoKey& key, const CryptoOperationData& data, VectorCallback callback, VoidCallback failureCallback, ExceptionCode& ec)
{
const CryptoAlgorithmRsaOaepParams& rsaOAEPParameters = toCryptoAlgorithmRsaOaepParams(parameters);
if (!keyAlgorithmMatches(rsaOAEPParameters, key)) {
ec = NOT_SUPPORTED_ERR;
return;
}
platformEncrypt(rsaOAEPParameters, toCryptoKeyRSA(key), data, WTF::move(callback), WTF::move(failureCallback), ec);
}
void CryptoAlgorithmRSA_OAEP::decrypt(const CryptoAlgorithmParameters& parameters, const CryptoKey& key, const CryptoOperationData& data, VectorCallback callback, VoidCallback failureCallback, ExceptionCode& ec)
{
const CryptoAlgorithmRsaOaepParams& rsaOAEPParameters = toCryptoAlgorithmRsaOaepParams(parameters);
if (!keyAlgorithmMatches(rsaOAEPParameters, key)) {
ec = NOT_SUPPORTED_ERR;
return;
}
platformDecrypt(rsaOAEPParameters, toCryptoKeyRSA(key), data, WTF::move(callback), WTF::move(failureCallback), ec);
}
void CryptoAlgorithmRSA_OAEP::generateKey(const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsage usages, KeyOrKeyPairCallback callback, VoidCallback failureCallback, ExceptionCode&)
{
const CryptoAlgorithmRsaKeyGenParams& rsaParameters = toCryptoAlgorithmRsaKeyGenParams(parameters);
auto keyPairCallback = [callback](CryptoKeyPair& pair) {
callback(nullptr, &pair);
};
CryptoKeyRSA::generatePair(CryptoAlgorithmIdentifier::RSA_OAEP, rsaParameters.modulusLength, rsaParameters.publicExponent, extractable, usages, WTF::move(keyPairCallback), WTF::move(failureCallback));
}
void CryptoAlgorithmRSA_OAEP::importKey(const CryptoAlgorithmParameters& parameters, const CryptoKeyData& keyData, bool extractable, CryptoKeyUsage usage, KeyCallback callback, VoidCallback failureCallback, ExceptionCode&)
{
const CryptoAlgorithmRsaKeyParamsWithHash& rsaKeyParameters = toCryptoAlgorithmRsaKeyParamsWithHash(parameters);
const CryptoKeyDataRSAComponents& rsaComponents = toCryptoKeyDataRSAComponents(keyData);
RefPtr<CryptoKeyRSA> result = CryptoKeyRSA::create(CryptoAlgorithmIdentifier::RSA_OAEP, rsaComponents, extractable, usage);
if (!result) {
failureCallback();
return;
}
if (rsaKeyParameters.hasHash)
result->restrictToHash(rsaKeyParameters.hash);
callback(*result);
}
}
#endif // ENABLE(SUBTLE_CRYPTO)
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