des.h

DES算法软件的实现

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

#if !defined(AFX_DES_H__4F2FC9C9_EC27_42C4_A821_65E65F873DCA__INCLUDED_)
#define AFX_DES_H__4F2FC9C9_EC27_42C4_A821_65E65F873DCA__INCLUDED_

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

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

	void XOR(const BYTE in1[8], const BYTE in2[8], BYTE out[8]);  
	LPBYTE Bin2ASCII(const BYTE byte[64], BYTE bit[8]); 
	LPBYTE ASCII2Bin(const BYTE bit[8], BYTE byte[64]);
	void GenSubKey(const BYTE oldkey[8], BYTE newkey[16][8]); 
	void endes(const BYTE m_bit[8], const BYTE k_bit[8], BYTE e_bit[8]);  
	void undes(const BYTE m_bit[8], const BYTE k_bit[8], BYTE e_bit[8]); 
	void SReplace(BYTE s_bit[8]);  
};

char DES_Encrypt(	unsigned char *pOut, 
					unsigned char *pIn, 
					unsigned char *pCipherKey);
char DES_Decrypt(	unsigned char *pOut, 
					unsigned char *pIn, 
					unsigned char *pCipherKey);
char DES3_Encrypt(	unsigned char *pOut, 
					unsigned char *pIn, 
					unsigned char *pCipherKey);
char DES3_Decrypt(	unsigned char *pOut, 
					unsigned char *pIn, 
					unsigned char *pCipherKey);
#endif // !defined(AFX_DES_H__4F2FC9C9_EC27_42C4_A821_65E65F873DCA__INCLUDED_)