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/*
* Copyright (C) 2021 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
#if ENABLE(SERVICE_WORKER)
#include <span>
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace WebCore::PushCrypto {
static constexpr size_t p256dhPublicKeyLength = 65;
static constexpr size_t p256dhPrivateKeyLength = 32;
static constexpr size_t p256dhSharedSecretLength = 32;
static constexpr size_t sha256DigestLength = 32;
static constexpr size_t aes128GCMTagLength = 16;
struct P256DHKeyPair {
Vector<uint8_t> publicKey;
Vector<uint8_t> privateKey;
static P256DHKeyPair generate(void);
};
bool validateP256DHPublicKey(std::span<const uint8_t> publicKey);
WEBCORE_EXPORT std::optional<Vector<uint8_t>> computeP256DHSharedSecret(std::span<const uint8_t> publicKey, const P256DHKeyPair&);
WEBCORE_EXPORT Vector<uint8_t> hmacSHA256(std::span<const uint8_t> key, std::span<const uint8_t> message);
WEBCORE_EXPORT std::optional<Vector<uint8_t>> decryptAES128GCM(std::span<const uint8_t> key, std::span<const uint8_t> iv, std::span<const uint8_t> cipherTextWithTag);
} // namespace WebCore::PushCrypto
#endif // ENABLE(SERVICE_WORKER)
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