hmac.h

HMAC即带密钥的HASH函数

// HMac.h: interface for the CHMac class.
// Programmed by Gamsn 2005.10.22
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_HMAC_H__152DF4F0_2C04_4F57_BECF_B45504ADFE71__INCLUDED_)
#define AFX_HMAC_H__152DF4F0_2C04_4F57_BECF_B45504ADFE71__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "Sha256.h"

class CHMac  
{
public:
	CHMac();
	virtual ~CHMac();
	CSha256 m_sha256;
	DWORD m_dwA1,m_dwB1,m_dwC1,m_dwD1,m_dwE1,m_dwF1,m_dwG1,m_dwH1;
	DWORD m_dwA2,m_dwB2,m_dwC2,m_dwD2,m_dwE2,m_dwF2,m_dwG2,m_dwH2;
	//参数中的长度均为字节长度而不是BIT长度
	void PreCalcu(CString strKey);
	void GenMac(CString srcFileName,CString *strHMac);
	void HashPro(BYTE sText[], int nSLen);
};

#endif // !defined(AFX_HMAC_H__152DF4F0_2C04_4F57_BECF_B45504ADFE71__INCLUDED_)