des.h

文件加密算法的头文件des算法 文件加密算法的头文件des算法

/* crypto/des/des.org */
/* Copyright (C) 1995-1997 Eric Young ([e-mail])
 * All rights reserved.
 *
 */


#ifndef HEADER_DES_H
#define HEADER_DES_H


#include <stdio.h>

/* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
 * %20 speed up (longs are 8 bytes, int's are 4). */
#ifndef DES_LONG
#define DES_LONG unsigned long
#endif

typedef unsigned char des_cblock[8];
typedef struct des_ks_struct
	{
	union	{
		des_cblock _;
		/* make sure things are correct size on machines with
		 * 8 byte longs */
		DES_LONG pad[2];
		} ks;
#undef _
#define _	ks._
	} des_key_schedule[16];

#define DES_KEY_SZ 	(sizeof(des_cblock))
#define DES_SCHEDULE_SZ (sizeof(des_key_schedule))

#define DES_ENCRYPT	1
#define DES_DECRYPT	0

#define DES_CBC_MODE	0
#define DES_PCBC_MODE	1

/*   add  function begin  */                          

#define BUFMAX   1024
#define DES_ERROR		-1
#define DES_SUCCESS		1
#define KEYWORD1 "12345678"
#define KEYWORD2 "87654321"
#define KEYWORD3 "abcdefgh"
/*   add  function end  */ 
#define des_ecb2_encrypt(i,o,k1,k2,e) \
	des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))

#define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
	des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))

#define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
	des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))

#define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
	des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))

#define C_Block des_cblock
#define Key_schedule des_key_schedule
#ifdef KERBEROS
#define ENCRYPT DES_ENCRYPT
#define DECRYPT DES_DECRYPT
#endif
#define KEY_SZ DES_KEY_SZ
#define string_to_key des_string_to_key
#define read_pw_string des_read_pw_string
#define random_key des_random_key
#define pcbc_encrypt des_pcbc_encrypt
#define set_key des_set_key
#define key_sched des_key_sched
#define ecb_encrypt des_ecb_encrypt
#define cbc_encrypt des_cbc_encrypt
#define ncbc_encrypt des_ncbc_encrypt
#define xcbc_encrypt des_xcbc_encrypt
#define cbc_cksum des_cbc_cksum
#define quad_cksum des_quad_cksum

/* For compatibility with the MIT lib - eay 20/05/92 */
typedef des_key_schedule bit_64;
#define des_fixup_key_parity des_set_odd_parity
#define des_check_key_parity check_parity

extern int des_check_key;	/* defaults to false */
extern int des_rw_mode;		/* defaults to DES_PCBC_MODE */

/* The next line is used to disable full ANSI prototypes, if your
 * compiler has problems with the prototypes, make sure this line always
 * evaluates to true :-) */
char *des_options(void);
void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
	des_key_schedule ks1,des_key_schedule ks2,
	des_key_schedule ks3, int enc);
DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
	long length,des_key_schedule schedule,des_cblock *ivec);
void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
	des_key_schedule schedule,des_cblock *ivec,int enc);
void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
	des_key_schedule schedule,des_cblock *ivec,int enc);
void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
	des_key_schedule schedule,des_cblock *ivec,
	des_cblock *inw,des_cblock *outw,int enc);
void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
	long length,des_key_schedule schedule,des_cblock *ivec,int enc);
void des_ecb_encrypt(des_cblock *input,des_cblock *output,
	des_key_schedule ks,int enc);
void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
	des_key_schedule ks2, des_key_schedule ks3);
void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
	des_key_schedule ks2, des_key_schedule ks3);
void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output, 
	long length, des_key_schedule ks1, des_key_schedule ks2, 
	des_key_schedule ks3, des_cblock *ivec, int enc);
void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
	long length, des_key_schedule ks1, des_key_schedule ks2,
	des_key_schedule ks3, des_cblock *ivec, int *num, int enc);
void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
	long length, des_key_schedule ks1, des_key_schedule ks2,
	des_key_schedule ks3, des_cblock *ivec, int *num);

void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white),
	des_cblock (*out_white));

int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
	des_cblock *iv);
int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
	des_cblock *iv);
char *des_fcrypt(const char *buf,const char *salt, char *ret);
char *crypt(const char *buf,const char *salt);
void des_ofb_encrypt(unsigned char *in,unsigned char *out,
	int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
	des_key_schedule schedule,des_cblock *ivec,int enc);
DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
	long length,int out_count,des_cblock *seed);
void des_random_seed(des_cblock key);
void des_random_key(des_cblock ret);
int des_read_password(des_cblock *key,char *prompt,int verify);
int des_read_2passwords(des_cblock *key1,des_cblock *key2,
	char *prompt,int verify);
int des_read_pw_string(char *buf,int length,char *prompt,int verify);
void des_set_odd_parity(des_cblock *key);
int des_is_weak_key(des_cblock *key);
int des_set_key(des_cblock *key,des_key_schedule schedule);
int des_key_sched(des_cblock *key,des_key_schedule schedule);
void des_string_to_key(char *str,des_cblock *key);
void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
	des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
	des_key_schedule schedule, des_cblock *ivec, int *num);
int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);

/* Extra functions from Mark Murray <[e-mail]> */
void des_cblock_print_file(des_cblock *cb, FILE *fp);
/* The following functions are not in the normal unix build or the
 * SSLeay build.  When using the SSLeay build, use RAND_seed()
 * and RAND_bytes() instead. */
int des_new_random_key(des_cblock *key);
void des_init_random_number_generator(des_cblock *key);
void des_set_random_generator_seed(des_cblock *key);
void des_set_sequence_number(des_cblock new_sequence_number);
void des_generate_random_block(des_cblock *block);



/* ZTE functions */

#define DES_BLOCKSIZE	8
/*
static const char keyData[3][8]={
	{'\x43','\x29','\x7F','\xAD','\x38','\xE3','\x73','\xFE'},
	{'\x1F','\x08','\x26','\x0D','\x1A','\xC2','\x46','\x5E'},
	{'\x58','\x40','\x23','\x64','\x1A','\xBA','\x61','\x76'},
};
*/
static const char keyData[3][8]={
	{'\xF4','\x88','\xFD','\x58','\x4E','\x49','\xDB','\xCD'},
	{'\x20','\xB4','\x9D','\xE4','\x91','\x07','\x36','\x6B'},
	{'\x33','\x6C','\x38','\x0D','\x45','\x1D','\x0F','\x7C'},
};

int TriDesEncryptUser(const char * in, char * out, const char md5Result[16], int len);
int TriDesDecryptUser(const char * in, char * out, const char md5Result[16], int len);
int TriDesEncrypt(const char * in, char * out, int len, const char * key1,const char * key2,const char * key3 );
int TriDesDecrypt(const char * in, char * out, int len, const char * key1,const char * key2 ,const char * key3 );

#if 0
int TriDesEncryptText(const char * in, char * out, int len,const char * key1,const char * key2 ,const char * key3);
int TriDesDecryptText(const char * in, char * out, int len,const char * key1,const char * key2,const char * key3);
#endif

void GenerateOct(const unsigned char * p, unsigned char * buf);
void GenerateText(const unsigned char * p, unsigned char * buf);

int GetLicense(const char * in, char license[]);
/*   add  function begin  */                          
int DES_file_crypt(char *iFilename,char *oFilename,int mode);
int DES_stream_crypt(char *iBuf,char *oBuf,int iBufLen,int mode);
/*   add  function end  */ 

#endif