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des.h revision 1.1
      1 /*	$NetBSD: des.h,v 1.1 2000/06/14 19:45:35 thorpej Exp $	*/
      2 /*	$KAME: des.h,v 1.4 2000/06/14 10:41:17 itojun Exp $	*/
      3 
      4 /* lib/des/des.h */
      5 /* Copyright (C) 1995-1996 Eric Young (eay (at) mincom.oz.au)
      6  * All rights reserved.
      7  *
      8  * This file is part of an SSL implementation written
      9  * by Eric Young (eay (at) mincom.oz.au).
     10  * The implementation was written so as to conform with Netscapes SSL
     11  * specification.  This library and applications are
     12  * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
     13  * as long as the following conditions are aheared to.
     14  *
     15  * Copyright remains Eric Young's, and as such any Copyright notices in
     16  * the code are not to be removed.  If this code is used in a product,
     17  * Eric Young should be given attribution as the author of the parts used.
     18  * This can be in the form of a textual message at program startup or
     19  * in documentation (online or textual) provided with the package.
     20  *
     21  * Redistribution and use in source and binary forms, with or without
     22  * modification, are permitted provided that the following conditions
     23  * are met:
     24  * 1. Redistributions of source code must retain the copyright
     25  *    notice, this list of conditions and the following disclaimer.
     26  * 2. Redistributions in binary form must reproduce the above copyright
     27  *    notice, this list of conditions and the following disclaimer in the
     28  *    documentation and/or other materials provided with the distribution.
     29  * 3. All advertising materials mentioning features or use of this software
     30  *    must display the following acknowledgement:
     31  *    This product includes software developed by Eric Young (eay (at) mincom.oz.au)
     32  *
     33  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     34  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     35  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     36  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     37  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     41  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     42  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     43  * SUCH DAMAGE.
     44  *
     45  * The licence and distribution terms for any publically available version or
     46  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     47  * copied and put under another distribution licence
     48  * [including the GNU Public Licence.]
     49  */
     50 
     51 #ifndef HEADER_DES_H
     52 #define HEADER_DES_H
     53 
     54 #ifdef  __cplusplus
     55 extern "C" {
     56 #endif
     57 
     58 /* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
     59  * %20 speed up (longs are 8 bytes, int's are 4). */
     60 #ifndef DES_LONG
     61 #define DES_LONG unsigned long
     62 #endif
     63 
     64 typedef unsigned char des_cblock[8];
     65 typedef struct des_ks_struct
     66 	{
     67 	union	{
     68 		des_cblock _;
     69 		/* make sure things are correct size on machines with
     70 		 * 8 byte longs */
     71 		DES_LONG pad[2];
     72 		} ks;
     73 #undef _
     74 #define _	ks._
     75 	} des_key_schedule[16];
     76 
     77 #define DES_KEY_SZ 	(sizeof(des_cblock))
     78 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
     79 
     80 #define DES_ENCRYPT	1
     81 #define DES_DECRYPT	0
     82 
     83 #define DES_CBC_MODE	0
     84 #define DES_PCBC_MODE	1
     85 
     86 #define des_ecb2_encrypt(i,o,k1,k2,e) \
     87 	des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
     88 
     89 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
     90 	des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
     91 
     92 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
     93 	des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
     94 
     95 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
     96 	des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
     97 
     98 #define C_Block des_cblock
     99 #define Key_schedule des_key_schedule
    100 #ifdef KERBEROS
    101 #define ENCRYPT DES_ENCRYPT
    102 #define DECRYPT DES_DECRYPT
    103 #endif
    104 #define KEY_SZ DES_KEY_SZ
    105 #define string_to_key des_string_to_key
    106 #define read_pw_string des_read_pw_string
    107 #define random_key des_random_key
    108 #define pcbc_encrypt des_pcbc_encrypt
    109 #define set_key des_set_key
    110 #define key_sched des_key_sched
    111 #define ecb_encrypt des_ecb_encrypt
    112 #define cbc_encrypt des_cbc_encrypt
    113 #define ncbc_encrypt des_ncbc_encrypt
    114 #define xcbc_encrypt des_xcbc_encrypt
    115 #define cbc_cksum des_cbc_cksum
    116 #define quad_cksum des_quad_cksum
    117 
    118 /* For compatibility with the MIT lib - eay 20/05/92 */
    119 typedef des_key_schedule bit_64;
    120 #define des_fixup_key_parity des_set_odd_parity
    121 #define des_check_key_parity check_parity
    122 
    123 extern int des_check_key;	/* defaults to false */
    124 extern int des_rw_mode;		/* defaults to DES_PCBC_MODE */
    125 
    126 /* The next line is used to disable full ANSI prototypes, if your
    127  * compiler has problems with the prototypes, make sure this line always
    128  * evaluates to true :-) */
    129 #if defined(MSDOS) || defined(__STDC__)
    130 #undef NOPROTO
    131 #endif
    132 #ifndef NOPROTO
    133 char *des_options(void);
    134 void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
    135 	des_key_schedule ks1,des_key_schedule ks2,
    136 	des_key_schedule ks3, int enc);
    137 DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
    138 	long length,des_key_schedule schedule,des_cblock *ivec);
    139 /*
    140 void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
    141 	des_key_schedule schedule,des_cblock *ivec,int enc);
    142 */
    143 int des_cbc_encrypt(struct mbuf *, size_t, size_t,
    144 	des_key_schedule schedule,des_cblock *ivec, int enc);
    145 void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
    146 	des_key_schedule schedule,des_cblock *ivec,int enc);
    147 void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
    148 	des_key_schedule schedule,des_cblock *ivec,
    149 	des_cblock *inw,des_cblock *outw,int enc);
    150 void des_3cbc_encrypt(des_cblock *input,des_cblock *output,long length,
    151 	des_key_schedule sk1,des_key_schedule sk2,
    152 	des_cblock *ivec1,des_cblock *ivec2,int enc);
    153 extern int des_3cbc_process(struct mbuf *, size_t, size_t,
    154 	des_key_schedule *schedule, des_cblock *ivec, int mode);
    155 void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
    156 	long length,des_key_schedule schedule,des_cblock *ivec,int enc);
    157 void des_ecb_encrypt(des_cblock *input,des_cblock *output,
    158 	des_key_schedule ks,int enc);
    159 void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
    160 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
    161 void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output,
    162 	long length, des_key_schedule ks1, des_key_schedule ks2,
    163 	des_key_schedule ks3, des_cblock *ivec, int enc);
    164 void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
    165 	long length, des_key_schedule ks1, des_key_schedule ks2,
    166 	des_key_schedule ks3, des_cblock *ivec, int *num, int encrypt);
    167 void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
    168 	long length, des_key_schedule ks1, des_key_schedule ks2,
    169 	des_key_schedule ks3, des_cblock *ivec, int *num);
    170 
    171 int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
    172 	des_cblock *iv);
    173 int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
    174 	des_cblock *iv);
    175 #ifdef PERL5
    176 char *des_crypt(const char *buf,const char *salt);
    177 #else
    178 /* some stupid compilers complain because I have declared char instead
    179  * of const char */
    180 #if 1
    181 char *crypt(const char *buf,const char *salt);
    182 #else
    183 char *crypt();
    184 #endif
    185 #endif
    186 void des_ofb_encrypt(unsigned char *in,unsigned char *out,
    187 	int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
    188 void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
    189 	des_key_schedule schedule,des_cblock *ivec,int enc);
    190 DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
    191 	long length,int out_count,des_cblock *seed);
    192 void des_random_seed(des_cblock key);
    193 void des_random_key(des_cblock ret);
    194 int des_read_password(des_cblock *key,char *prompt,int verify);
    195 int des_read_2passwords(des_cblock *key1,des_cblock *key2,
    196 	char *prompt,int verify);
    197 int des_read_pw_string(char *buf,int length,char *prompt,int verify);
    198 void des_set_odd_parity(des_cblock *key);
    199 int des_is_weak_key(des_cblock *key);
    200 int des_set_key(des_cblock *key,des_key_schedule schedule);
    201 int des_key_sched(des_cblock *key,des_key_schedule schedule);
    202 void des_string_to_key(char *str,des_cblock *key);
    203 void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
    204 void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
    205 	des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
    206 void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
    207 	des_key_schedule schedule, des_cblock *ivec, int *num);
    208 
    209 /* Extra functions from Mark Murray <mark (at) grondar.za> */
    210 /*
    211 void des_cblock_print_file(des_cblock *cb, FILE *fp);
    212 */
    213 /* The following functions are not in the normal unix build or the
    214  * SSLeay build.  When using the SSLeay build, use RAND_seed()
    215  * and RAND_bytes() instead. */
    216 int des_new_random_key(des_cblock *key);
    217 void des_init_random_number_generator(des_cblock *key);
    218 void des_set_random_generator_seed(des_cblock *key);
    219 void des_set_sequence_number(des_cblock new_sequence_number);
    220 void des_generate_random_block(des_cblock *block);
    221 
    222 #else
    223 
    224 char *des_options();
    225 void des_ecb3_encrypt();
    226 DES_LONG des_cbc_cksum();
    227 void des_cbc_encrypt();
    228 void des_ncbc_encrypt();
    229 void des_xcbc_encrypt();
    230 void des_3cbc_encrypt();
    231 void des_cfb_encrypt();
    232 void des_ede3_cfb64_encrypt();
    233 void des_ede3_ofb64_encrypt();
    234 void des_ecb_encrypt();
    235 void des_encrypt();
    236 void des_encrypt2();
    237 void des_ede3_cbc_encrypt();
    238 int des_enc_read();
    239 int des_enc_write();
    240 #ifdef PERL5
    241 char *des_crypt();
    242 #else
    243 char *crypt();
    244 #endif
    245 void des_ofb_encrypt();
    246 void des_pcbc_encrypt();
    247 DES_LONG des_quad_cksum();
    248 void des_random_seed();
    249 void des_random_key();
    250 int des_read_password();
    251 int des_read_2passwords();
    252 int des_read_pw_string();
    253 void des_set_odd_parity();
    254 int des_is_weak_key();
    255 int des_set_key();
    256 int des_key_sched();
    257 void des_string_to_key();
    258 void des_string_to_2keys();
    259 void des_cfb64_encrypt();
    260 void des_ofb64_encrypt();
    261 
    262 /* Extra functions from Mark Murray <mark (at) grondar.za> */
    263 void des_cblock_print_file();
    264 /* The following functions are not in the normal unix build or the
    265  * SSLeay build.  When using the SSLeay build, use RAND_seed()
    266  * and RAND_bytes() instead. */
    267 #ifdef FreeBSD
    268 int des_new_random_key();
    269 void des_init_random_number_generator();
    270 void des_set_random_generator_seed();
    271 void des_set_sequence_number();
    272 void des_generate_random_block();
    273 #endif
    274 
    275 #endif
    276 
    277 #ifdef  __cplusplus
    278 }
    279 #endif
    280 
    281 #endif
    282