des.h revision 76870
1/* crypto/des/des.h */ 2/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 * $FreeBSD: head/crypto/openssl/crypto/des/des.h 76870 2001-05-20 03:17:35Z kris $ 58 */ 59 60#ifndef HEADER_DES_H 61#define HEADER_DES_H 62 63#ifdef NO_DES 64#error DES is disabled. 65#endif 66 67#ifdef _KERBEROS_DES_H 68#error <openssl/des.h> replaces <kerberos/des.h>. 69#endif 70 71#include <openssl/opensslconf.h> /* DES_LONG */ 72#include <openssl/e_os2.h> /* OPENSSL_EXTERN */ 73 74#ifdef __cplusplus 75extern "C" { 76#endif 77 78typedef unsigned char des_cblock[8]; 79typedef /* const */ unsigned char const_des_cblock[8]; 80/* With "const", gcc 2.8.1 on Solaris thinks that des_cblock * 81 * and const_des_cblock * are incompatible pointer types. */ 82 83typedef struct des_ks_struct 84 { 85 union { 86 des_cblock cblock; 87 /* make sure things are correct size on machines with 88 * 8 byte longs */ 89 DES_LONG deslong[2]; 90 } ks; 91 int weak_key; 92 } des_key_schedule[16]; 93 94#define DES_KEY_SZ (sizeof(des_cblock)) 95#define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 96 97#define DES_ENCRYPT 1 98#define DES_DECRYPT 0 99 100#define DES_CBC_MODE 0 101#define DES_PCBC_MODE 1 102 103#define des_ecb2_encrypt(i,o,k1,k2,e) \ 104 des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 105 106#define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 107 des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 108 109#define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 110 des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 111 112#define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 113 des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 114 115OPENSSL_EXTERN int des_check_key; /* defaults to false */ 116OPENSSL_EXTERN int des_rw_mode; /* defaults to DES_PCBC_MODE */ 117OPENSSL_EXTERN int des_set_weak_key_flag; /* set the weak key flag */ 118 119const char *des_options(void); 120void des_ecb3_encrypt(const_des_cblock *input, des_cblock *output, 121 des_key_schedule ks1,des_key_schedule ks2, 122 des_key_schedule ks3, int enc); 123DES_LONG des_cbc_cksum(const unsigned char *input,des_cblock *output, 124 long length,des_key_schedule schedule, 125 const_des_cblock *ivec); 126/* des_cbc_encrypt does not update the IV! Use des_ncbc_encrypt instead. */ 127void des_cbc_encrypt(const unsigned char *input,unsigned char *output, 128 long length,des_key_schedule schedule,des_cblock *ivec, 129 int enc); 130void des_ncbc_encrypt(const unsigned char *input,unsigned char *output, 131 long length,des_key_schedule schedule,des_cblock *ivec, 132 int enc); 133void des_xcbc_encrypt(const unsigned char *input,unsigned char *output, 134 long length,des_key_schedule schedule,des_cblock *ivec, 135 const_des_cblock *inw,const_des_cblock *outw,int enc); 136void des_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 137 long length,des_key_schedule schedule,des_cblock *ivec, 138 int enc); 139void des_ecb_encrypt(const_des_cblock *input,des_cblock *output, 140 des_key_schedule ks,int enc); 141 142/* This is the DES encryption function that gets called by just about 143 every other DES routine in the library. You should not use this 144 function except to implement 'modes' of DES. I say this because the 145 functions that call this routine do the conversion from 'char *' to 146 long, and this needs to be done to make sure 'non-aligned' memory 147 access do not occur. The characters are loaded 'little endian'. 148 Data is a pointer to 2 unsigned long's and ks is the 149 des_key_schedule to use. enc, is non zero specifies encryption, 150 zero if decryption. */ 151void des_encrypt1(DES_LONG *data,des_key_schedule ks, int enc); 152 153/* This functions is the same as des_encrypt1() except that the DES 154 initial permutation (IP) and final permutation (FP) have been left 155 out. As for des_encrypt1(), you should not use this function. 156 It is used by the routines in the library that implement triple DES. 157 IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same 158 as des_encrypt1() des_encrypt1() des_encrypt1() except faster :-). */ 159void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc); 160 161void des_encrypt3(DES_LONG *data, des_key_schedule ks1, 162 des_key_schedule ks2, des_key_schedule ks3); 163void des_decrypt3(DES_LONG *data, des_key_schedule ks1, 164 des_key_schedule ks2, des_key_schedule ks3); 165void des_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, 166 long length, 167 des_key_schedule ks1,des_key_schedule ks2, 168 des_key_schedule ks3,des_cblock *ivec,int enc); 169void des_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, 170 long length, 171 des_key_schedule ks1,des_key_schedule ks2, 172 des_key_schedule ks3, 173 des_cblock *ivec1,des_cblock *ivec2, 174 int enc); 175void des_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, 176 long length,des_key_schedule ks1, 177 des_key_schedule ks2,des_key_schedule ks3, 178 des_cblock *ivec,int *num,int enc); 179void des_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, 180 long length,des_key_schedule ks1, 181 des_key_schedule ks2,des_key_schedule ks3, 182 des_cblock *ivec,int *num); 183 184void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white, 185 des_cblock *out_white); 186 187int des_enc_read(int fd,void *buf,int len,des_key_schedule sched, 188 des_cblock *iv); 189int des_enc_write(int fd,const void *buf,int len,des_key_schedule sched, 190 des_cblock *iv); 191char *des_fcrypt(const char *buf,const char *salt, char *ret); 192char *des_crypt(const char *buf,const char *salt); 193#if !defined(PERL5) && !defined(__FreeBSD__) && !defined(NeXT) 194char *crypt(const char *buf,const char *salt); 195#endif 196void des_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 197 long length,des_key_schedule schedule,des_cblock *ivec); 198void des_pcbc_encrypt(const unsigned char *input,unsigned char *output, 199 long length,des_key_schedule schedule,des_cblock *ivec, 200 int enc); 201DES_LONG des_quad_cksum(const unsigned char *input,des_cblock output[], 202 long length,int out_count,des_cblock *seed); 203void des_random_seed(des_cblock *key); 204int des_new_random_key(des_cblock *key); 205void des_init_random_number_generator(des_cblock *seed); 206void des_rand_data(unsigned char *data, int size); 207int des_random_key(des_cblock *ret); 208int des_read_password(des_cblock *key,const char *prompt,int verify); 209int des_read_2passwords(des_cblock *key1,des_cblock *key2, 210 const char *prompt,int verify); 211int des_read_pw_string(char *buf,int length,const char *prompt,int verify); 212void des_set_odd_parity(des_cblock *key); 213int des_check_key_parity(const_des_cblock *key); 214int des_is_weak_key(const_des_cblock *key); 215/* des_set_key (= set_key = des_key_sched = key_sched) calls 216 * des_set_key_checked if global variable des_check_key is set, 217 * des_set_key_unchecked otherwise. */ 218int des_set_key(const_des_cblock *key,des_key_schedule schedule); 219int des_key_sched(const_des_cblock *key,des_key_schedule schedule); 220int des_set_key_checked(const_des_cblock *key,des_key_schedule schedule); 221void des_set_key_unchecked(const_des_cblock *key,des_key_schedule schedule); 222void des_string_to_key(const char *str,des_cblock *key); 223void des_string_to_2keys(const char *str,des_cblock *key1,des_cblock *key2); 224void des_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, 225 des_key_schedule schedule,des_cblock *ivec,int *num, 226 int enc); 227void des_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, 228 des_key_schedule schedule,des_cblock *ivec,int *num); 229int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify); 230 231/* The following definitions provide compatibility with the MIT Kerberos 232 * library. The des_key_schedule structure is not binary compatible. */ 233 234#define _KERBEROS_DES_H 235 236#define KRBDES_ENCRYPT DES_ENCRYPT 237#define KRBDES_DECRYPT DES_DECRYPT 238 239#ifdef KERBEROS 240# define ENCRYPT DES_ENCRYPT 241# define DECRYPT DES_DECRYPT 242#endif 243 244#ifndef NCOMPAT 245# define C_Block des_cblock 246# define Key_schedule des_key_schedule 247# define KEY_SZ DES_KEY_SZ 248# define string_to_key des_string_to_key 249# define read_pw_string des_read_pw_string 250# define random_key des_random_key 251# define pcbc_encrypt des_pcbc_encrypt 252# define set_key des_set_key 253# define key_sched des_key_sched 254# define ecb_encrypt des_ecb_encrypt 255# define cbc_encrypt des_cbc_encrypt 256# define ncbc_encrypt des_ncbc_encrypt 257# define xcbc_encrypt des_xcbc_encrypt 258# define cbc_cksum des_cbc_cksum 259# define quad_cksum des_quad_cksum 260# define check_parity des_check_key_parity 261#endif 262 263typedef des_key_schedule bit_64; 264#define des_fixup_key_parity des_set_odd_parity 265 266#ifdef __cplusplus 267} 268#endif 269 270#endif 271