des.h

经典的DES算法

// DES.h: interface for the CDES class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_DES_H__B442BF79_0904_443F_99BC_FDA881A69299__INCLUDED_)
#define AFX_DES_H__B442BF79_0904_443F_99BC_FDA881A69299__INCLUDED_

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

class CDES  
{
public:
	CDES();
	virtual ~CDES();

public:
	CString EnDes(CString strIn,CString strKEY);
	CString UnDes(CString strIn,CString strKEY);
	CString BinToStr(CString strBin);
	CString BinToBcd(CString strIn);
	CString StrToBin(CString strIn);
	CString StrToBcd(CString strIn);
	CString BcdToBin(CString strIn);
	CString BcdToStr(CString strIn);

protected:
	int t1[65];
	int K1[49],K2[49],K3[49],K4[49],K5[49],K6[49],K7[49],K8[49],K9[49],K10[49],K11[49],K12[49],K13[49],K14[49],K15[49],K16[49];
	int R0[33];
	int L0[33];
	void initial(CString strIn);
	void iniKey(CString strKey);
};

#endif // !defined(AFX_DES_H__B442BF79_0904_443F_99BC_FDA881A69299__INCLUDED_)