cKeyExECDH.h

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//
//
#ifndef _INC_cKeyExECDH_H
#define _INC_cKeyExECDH_H
 
#include "cKeyExBase.h"
#include "../Key/cKeyECPPair.h"
 
namespace GrayLib
{
        UNITTEST2_PREDEF(cKeyExECDH);
 
        class GRAYLIB_LINK cKeyExECDH : public cKeyExBase
        {
 
        public:
                cECPGroup m_grp;      
 
                cECPPoint m_Q;        
                cECPPoint m_Qp;       
                cBigInteger m_z;      
                bool m_bCompressed;   
 
                cECPPoint m_Vi;       
                cECPPoint m_Vf;       
 
                static const BYTE k_ECP_TLS_NAMED_CURVE = 3;  
 
        private:
                static HRESULT ComputeSharedKey(cECPGroup& grp, OUT cBigInteger& z, const cECPPoint& Q, const cBigUnsigned& d, IRandomNoise* pRandom);
 
        public:
                cKeyExECDH() noexcept
                        : m_bCompressed(false)
                {
                }
                ~cKeyExECDH()
                {
                }
 
                //
                virtual HRESULT MakeKeyExParams(BYTE* pOut, size_t nSizeOut, IRandomNoise* pRandom) override;
 
                //
                //
                virtual HRESULT ReadKeyEx(const BYTE* pBuffer, const BYTE* end) override;
 
                //
                //
                HRESULT GetECDHParams(const cKeyBase* pKey, bool bThierSide);
 
                //
                //
                //
                HRESULT MakeKeyPublic(BYTE* pBuffer, size_t nSizeBuffer, IRandomNoise* pRandom);
 
                //
                //
                virtual HRESULT ReadKeyPublic(const BYTE* pBuffer, size_t nSizeBuffer) override;
 
                //
                //
                //
                HRESULT MakeKeyExSecret(BYTE* pBuffer, size_t nSizeBuffer, IRandomNoise* pRandom);
 
                UNITTEST_FRIEND(cKeyExECDH);
        };
}
 
#endif // _INC_cKeyExECDH_H