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/*
* Copyright (C) 2017-2019 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.
*/
#pragma once
#include "CryptoKey.h"
#include "CryptoKeyPair.h"
#include "ExceptionOr.h"
#if OS(DARWIN) && !PLATFORM(GTK)
#include "CommonCryptoUtilities.h"
#if HAVE(SWIFT_CPP_INTEROP)
namespace PAL {
class ECKey;
}
namespace WebCore {
using PlatformECKeyContainer = UniqueRef<PAL::ECKey>;
}
#else
namespace WebCore {
struct CCECCryptorRefDeleter {
void operator()(CCECCryptorRef key) const { CCECCryptorRelease(key); }
};
typedef std::unique_ptr<typename std::remove_pointer<CCECCryptorRef>::type, WebCore::CCECCryptorRefDeleter> PlatformECKeyContainer;
}
#endif
#endif
#if USE(GCRYPT)
#include <pal/crypto/gcrypt/Handle.h>
namespace WebCore {
using PlatformECKeyContainer = std::unique_ptr<typename std::remove_pointer<gcry_sexp_t>::type, PAL::GCrypt::HandleDeleter<gcry_sexp_t>>;
}
#endif
#if USE(OPENSSL)
#include "crypto/openssl/OpenSSLCryptoUniquePtr.h"
namespace WebCore {
using PlatformECKeyContainer = WebCore::EvpPKeyPtr;
}
#endif
namespace WebCore {
struct JsonWebKey;
class CryptoKeyEC final : public CryptoKey {
public:
enum class NamedCurve : uint8_t {
P256,
P384,
P521,
};
static Ref<CryptoKeyEC> create(CryptoAlgorithmIdentifier identifier, NamedCurve curve, CryptoKeyType type, PlatformECKeyContainer&& platformKey, bool extractable, CryptoKeyUsageBitmap usages)
{
return adoptRef(*new CryptoKeyEC(identifier, curve, type, WTFMove(platformKey), extractable, usages));
}
virtual ~CryptoKeyEC();
WEBCORE_EXPORT static ExceptionOr<CryptoKeyPair> generatePair(CryptoAlgorithmIdentifier, const String& curve, bool extractable, CryptoKeyUsageBitmap);
WEBCORE_EXPORT static RefPtr<CryptoKeyEC> importRaw(CryptoAlgorithmIdentifier, const String& curve, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> importJwk(CryptoAlgorithmIdentifier, const String& curve, JsonWebKey&&, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> importSpki(CryptoAlgorithmIdentifier, const String& curve, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> importPkcs8(CryptoAlgorithmIdentifier, const String& curve, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
WEBCORE_EXPORT ExceptionOr<Vector<uint8_t>> exportRaw() const;
ExceptionOr<JsonWebKey> exportJwk() const;
ExceptionOr<Vector<uint8_t>> exportSpki() const;
ExceptionOr<Vector<uint8_t>> exportPkcs8() const;
size_t keySizeInBits() const;
size_t keySizeInBytes() const { return std::ceil(keySizeInBits() / 8.); }
NamedCurve namedCurve() const { return m_curve; }
String namedCurveString() const;
const PlatformECKeyContainer& platformKey() const { return m_platformKey; }
static bool isValidECAlgorithm(CryptoAlgorithmIdentifier);
private:
CryptoKeyEC(CryptoAlgorithmIdentifier, NamedCurve, CryptoKeyType, PlatformECKeyContainer&&, bool extractable, CryptoKeyUsageBitmap);
CryptoKeyClass keyClass() const final { return CryptoKeyClass::EC; }
KeyAlgorithm algorithm() const final;
CryptoKey::Data data() const final;
static bool platformSupportedCurve(NamedCurve);
static std::optional<CryptoKeyPair> platformGeneratePair(CryptoAlgorithmIdentifier, NamedCurve, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> platformImportRaw(CryptoAlgorithmIdentifier, NamedCurve, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> platformImportJWKPublic(CryptoAlgorithmIdentifier, NamedCurve, Vector<uint8_t>&& x, Vector<uint8_t>&& y, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> platformImportJWKPrivate(CryptoAlgorithmIdentifier, NamedCurve, Vector<uint8_t>&& x, Vector<uint8_t>&& y, Vector<uint8_t>&& d, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> platformImportSpki(CryptoAlgorithmIdentifier, NamedCurve, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyEC> platformImportPkcs8(CryptoAlgorithmIdentifier, NamedCurve, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
Vector<uint8_t> platformExportRaw() const;
bool platformAddFieldElements(JsonWebKey&) const;
Vector<uint8_t> platformExportSpki() const;
Vector<uint8_t> platformExportPkcs8() const;
PlatformECKeyContainer m_platformKey;
NamedCurve m_curve;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CRYPTO_KEY(CryptoKeyEC, CryptoKeyClass::EC)
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