Hash.h

 
#pragma once
 
#include <aws/core/Core_EXPORTS.h>
#include <aws/core/utils/crypto/HashResult.h>
#include <aws/core/utils/memory/stl/AWSStreamFwd.h>
#include <aws/core/utils/memory/stl/AWSString.h>
 
namespace Aws
{
    namespace Utils
    {
        namespace Crypto
        {
            class AWS_CORE_API Hash
            {
            public:
 
                Hash() {}
                virtual ~Hash() {}
 
                virtual HashResult Calculate(const Aws::String& str) = 0;
 
                virtual HashResult Calculate(Aws::IStream& stream) = 0;
 
                virtual void Update(unsigned char*, size_t bufferSize) = 0;
 
                virtual HashResult GetHash() = 0;
 
                // when hashing streams, this is the size of our internal buffer we read the stream into
                static const uint32_t INTERNAL_HASH_STREAM_BUFFER_SIZE = 8192;
            };
 
            class AWS_CORE_API HashFactory
            {
            public:
                virtual ~HashFactory() {}
 
                virtual std::shared_ptr<Hash> CreateImplementation() const = 0;
 
                virtual void InitStaticState() {}
 
                virtual void CleanupStaticState() {}
            };
 
        } // namespace Crypto
    } // namespace Utils
} // namespace Aws