aes.h

计算机安全的 多种密码算法演示

#if !defined(AFX_AES_H__37833D4E_6F69_4F09_8D85_456490CC056C__INCLUDED_)
#define AFX_AES_H__37833D4E_6F69_4F09_8D85_456490CC056C__INCLUDED_

#define BYTE unsigned char       
#define WORD unsigned long       

#define ROTL(x) (((x)>>7)|((x)<<1))

#define ROTL8(x) (((x)<<8)|((x)>>24))
#define ROTL16(x) (((x)<<16)|((x)>>16))
#define ROTL24(x) (((x)<<24)|((x)>>8))








#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// AES.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// AES window

class AES : public CAnimateCtrl
{
// Construction
public:
	AES();

// Attributes
public:

 BYTE InCo[4];  
 BYTE fbsub[256];
 BYTE rbsub[256];
 BYTE ptab[256],ltab[256];
 WORD ftable[256];
 WORD rtable[256];
 WORD rco[30];


 WORD pack(BYTE *b);
 void unpack(WORD a,BYTE *b);
 BYTE xtime(BYTE a);
 BYTE bmul(BYTE x,BYTE y);
 WORD SubByte(WORD a);
 BYTE product(WORD x,WORD y);
 WORD InvMixCol(WORD x);

char *encode();
char *decode();
char key[32];
char block[32];

// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(AES)
	//}}AFX_VIRTUAL

// Implementation
public:
	virtual ~AES();

	// Generated message map functions
protected:
	//{{AFX_MSG(AES)
		// NOTE - the ClassWizard will add and remove member functions here.
	//}}AFX_MSG

int Nk;
int Nb;
int Nr;
BYTE fi[24];
BYTE ri[24];
WORD fkey[120];
WORD rkey[120];
BYTE ByteSub(BYTE x);
void gentables();
void strtoHex(char *str,char *hex);
void hextoStr(char *hex,char *str);
void gkey(int nb,int nk,char *key);
void encrypt(char *buff);
void decrypt(char *buff);

	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_AES_H__37833D4E_6F69_4F09_8D85_456490CC056C__INCLUDED_)