linux-sgx-trts-modified/psw/ae/pse/pse_pr/include/prepare_hmac_sha256.h

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#ifndef _PREPARE_HMAC_SHA256_H_
#define _PREPARE_HMAC_SHA256_H_

#include "pse_pr_inc.h"
#include "pse_pr_types.h"
#include "ae_ipp.h"


class PrepareHMACSHA256
{
public:
    PrepareHMACSHA256(const Ipp8u* key, size_t keyLength);
    ~PrepareHMACSHA256(void);

    // Include pData in the computed HMAC
    ae_error_t Update(const void* pData, size_t numBytes);

	// pHMAC will contain the computed HMAC if successful
	ae_error_t Finalize(SIGMA_HMAC *pHMAC);

private:
    IppStatus m_ippstatus;

    IppsHMACState *m_pCtx;

	// Disable class operations (default constructor, copy constructor, assignment operator, and address-of operator)
	PrepareHMACSHA256();										// default constructor
	PrepareHMACSHA256(const PrepareHMACSHA256& rhs);			// copy constructor
	PrepareHMACSHA256& operator=(const PrepareHMACSHA256& rhs); // assignment operator
	PrepareHMACSHA256* operator&();							    // address-of operator
	const PrepareHMACSHA256* operator&() const;				    // address-of operator

};

#endif