des.h

c51写的DES加解密程序

#ifndef _ENCRYPT_H
#define _ENCRYPT_H

extern void KeyRotate(unsigned char Key_56[],unsigned char cyc_times,unsigned char di);
extern void Key64_To_56(unsigned char Key_64[],unsigned char Key_56[]);
extern void Encryption(unsigned char PlainTxt[],unsigned char Key_64[],unsigned char CipherTxt[]);
extern void Decryption(unsigned char plain_txt[],unsigned char Key_64[],unsigned char cipher_txt[]);


#endif