des.h

des算法

#ifndef __DES_H
#define __DES_H

#include<string.h>


    int Encrypt(char* data, int len);
    int Decrypt(char* data, int len);
    void SetKey(char* key);
	

	void endes(char *block);
	void dedes(char *block);
	unsigned long byteswap(unsigned long x);
	void spinit();
	void permute(char *inblock,char perm[16][16][8],char *outblock);
	long f(unsigned long r,unsigned char subkey[8]);




#endif /* INC_DES_H_HEADER_INCLUDED_BE5AAB9B */