HMAC.h

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/*
  * Copyright 2010-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License").
  * You may not use this file except in compliance with the License.
  * A copy of the License is located at
  *
  *  http://aws.amazon.com/apache2.0
  *
  * or in the "license" file accompanying this file. This file is distributed
  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
  * express or implied. See the License for the specific language governing
  * permissions and limitations under the License.
  */

  /*
  * Interface for Sha256 encryptor and hmac
  */
#pragma once

#include <aws/core/Core_EXPORTS.h>

#include <aws/core/utils/Array.h>
#include <aws/core/utils/crypto/HashResult.h>

namespace Aws
{
    namespace Utils
    {
        namespace Crypto
        {
            class AWS_CORE_API HMAC
            {
            public:
                HMAC() {};
                virtual ~HMAC() {};

                virtual HashResult Calculate(const Aws::Utils::ByteBuffer& toSign, const Aws::Utils::ByteBuffer& secret) = 0;

            };

            class AWS_CORE_API HMACFactory
            {
            public:
                virtual ~HMACFactory() {}

                virtual std::shared_ptr<HMAC> CreateImplementation() const = 0;

                virtual void InitStaticState() {}

                virtual void CleanupStaticState() {}
            };

        } // namespace Crypto
    } // namespace Utils
} // namespace Aws