CryptoAlgorithmPBKDF2.cpp   [plain text]

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
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#include "config.h"
#include "CryptoAlgorithmPBKDF2.h"

#if ENABLE(SUBTLE_CRYPTO)

#include "CryptoAlgorithmParameters.h"
#include "CryptoKeyRaw.h"
#include "ExceptionCode.h"

namespace WebCore {

Ref<CryptoAlgorithm> CryptoAlgorithmPBKDF2::create()
{
    return adoptRef(*new CryptoAlgorithmPBKDF2);
}

CryptoAlgorithmIdentifier CryptoAlgorithmPBKDF2::identifier() const
{
    return s_identifier;
}

void CryptoAlgorithmPBKDF2::deriveBits(std::unique_ptr<CryptoAlgorithmParameters>&& parameters, Ref<CryptoKey>&& baseKey, size_t length, VectorCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext& context, WorkQueue& workQueue)
{
    if (!length || length % 8) {
        exceptionCallback(OperationError);
        return;
    }
    platformDeriveBits(WTFMove(parameters), WTFMove(baseKey), length, WTFMove(callback), WTFMove(exceptionCallback), context, workQueue);
}

void CryptoAlgorithmPBKDF2::importKey(SubtleCrypto::KeyFormat format, KeyData&& data, const std::unique_ptr<CryptoAlgorithmParameters>&& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyCallback&& callback, ExceptionCallback&& exceptionCallback)
{
    if (format != SubtleCrypto::KeyFormat::Raw) {
        exceptionCallback(NOT_SUPPORTED_ERR);
        return;
    }
    if (usages & (CryptoKeyUsageEncrypt | CryptoKeyUsageDecrypt | CryptoKeyUsageSign | CryptoKeyUsageVerify | CryptoKeyUsageWrapKey | CryptoKeyUsageUnwrapKey)) {
        exceptionCallback(SYNTAX_ERR);
        return;
    }
    if (extractable) {
        exceptionCallback(SYNTAX_ERR);
        return;
    }

    callback(CryptoKeyRaw::create(parameters->identifier, WTFMove(WTF::get<Vector<uint8_t>>(data)), usages));
}

ExceptionOr<size_t> CryptoAlgorithmPBKDF2::getKeyLength(const CryptoAlgorithmParameters&)
{
    return 0;
}

} // namespace WebCore

#endif // ENABLE(SUBTLE_CRYPTO)