1 /* $OpenBSD: des.h,v 1.22 2024/08/31 10:30:16 tb Exp $ */ 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 */ 58 59 #ifndef HEADER_NEW_DES_H 60 #define HEADER_NEW_DES_H 61 62 #include <openssl/opensslconf.h> 63 64 #ifdef OPENSSL_NO_DES 65 #error DES is disabled. 66 #endif 67 68 #ifdef __cplusplus 69 extern "C" { 70 #endif 71 72 typedef unsigned char DES_cblock[8]; 73 typedef /* const */ unsigned char const_DES_cblock[8]; 74 /* With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * 75 * and const_DES_cblock * are incompatible pointer types. */ 76 77 typedef struct DES_ks { 78 union { 79 DES_cblock cblock; 80 /* make sure things are correct size on machines with 81 * 8 byte longs */ 82 DES_LONG deslong[2]; 83 } ks[16]; 84 } DES_key_schedule; 85 86 #define DES_KEY_SZ (sizeof(DES_cblock)) 87 #define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) 88 89 #define DES_ENCRYPT 1 90 #define DES_DECRYPT 0 91 92 #define DES_CBC_MODE 0 93 #define DES_PCBC_MODE 1 94 95 #define DES_ecb2_encrypt(i,o,k1,k2,e) \ 96 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 97 98 #define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 99 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 100 101 #define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 102 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 103 104 #define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 105 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 106 107 extern int DES_check_key; /* defaults to false */ 108 109 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 110 DES_key_schedule *ks1, DES_key_schedule *ks2, 111 DES_key_schedule *ks3, int enc); 112 DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output, 113 long length, DES_key_schedule *schedule, 114 const_DES_cblock *ivec); 115 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 116 void DES_cbc_encrypt(const unsigned char *input, unsigned char *output, 117 long length, DES_key_schedule *schedule, DES_cblock *ivec, 118 int enc); 119 void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output, 120 long length, DES_key_schedule *schedule, DES_cblock *ivec, 121 int enc); 122 void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output, 123 long length, DES_key_schedule *schedule, DES_cblock *ivec, 124 const_DES_cblock *inw, const_DES_cblock *outw, int enc); 125 void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 126 long length, DES_key_schedule *schedule, DES_cblock *ivec, 127 int enc); 128 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output, 129 DES_key_schedule *ks, int enc); 130 131 /* This is the DES encryption function that gets called by just about 132 every other DES routine in the library. You should not use this 133 function except to implement 'modes' of DES. I say this because the 134 functions that call this routine do the conversion from 'char *' to 135 long, and this needs to be done to make sure 'non-aligned' memory 136 access do not occur. The characters are loaded 'little endian'. 137 Data is a pointer to 2 unsigned long's and ks is the 138 DES_key_schedule to use. enc, is non zero specifies encryption, 139 zero if decryption. */ 140 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc); 141 142 /* This functions is the same as DES_encrypt1() except that the DES 143 initial permutation (IP) and final permutation (FP) have been left 144 out. As for DES_encrypt1(), you should not use this function. 145 It is used by the routines in the library that implement triple DES. 146 IP() DES_encrypt2() DES_encrypt2() DES_encrypt2() FP() is the same 147 as DES_encrypt1() DES_encrypt1() DES_encrypt1() except faster :-). */ 148 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc); 149 150 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 151 DES_key_schedule *ks2, DES_key_schedule *ks3); 152 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 153 DES_key_schedule *ks2, DES_key_schedule *ks3); 154 void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output, 155 long length, 156 DES_key_schedule *ks1, DES_key_schedule *ks2, 157 DES_key_schedule *ks3, DES_cblock *ivec, int enc); 158 void DES_ede3_cbcm_encrypt(const unsigned char *in, unsigned char *out, 159 long length, 160 DES_key_schedule *ks1, DES_key_schedule *ks2, 161 DES_key_schedule *ks3, 162 DES_cblock *ivec1, DES_cblock *ivec2, 163 int enc); 164 void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out, 165 long length, DES_key_schedule *ks1, 166 DES_key_schedule *ks2, DES_key_schedule *ks3, 167 DES_cblock *ivec, int *num, int enc); 168 void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out, 169 int numbits, long length, DES_key_schedule *ks1, 170 DES_key_schedule *ks2, DES_key_schedule *ks3, 171 DES_cblock *ivec, int enc); 172 void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out, 173 long length, DES_key_schedule *ks1, 174 DES_key_schedule *ks2, DES_key_schedule *ks3, 175 DES_cblock *ivec, int *num); 176 char *DES_fcrypt(const char *buf, const char *salt, char *ret); 177 char *DES_crypt(const char *buf, const char *salt); 178 void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 179 long length, DES_key_schedule *schedule, DES_cblock *ivec); 180 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output, 181 long length, DES_key_schedule *schedule, DES_cblock *ivec, 182 int enc); 183 DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[], 184 long length, int out_count, DES_cblock *seed); 185 int DES_random_key(DES_cblock *ret); 186 void DES_set_odd_parity(DES_cblock *key); 187 int DES_check_key_parity(const_DES_cblock *key); 188 int DES_is_weak_key(const_DES_cblock *key); 189 /* DES_set_key (= set_key = DES_key_sched = key_sched) calls 190 * DES_set_key_checked if global variable DES_check_key is set, 191 * DES_set_key_unchecked otherwise. */ 192 int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule); 193 int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule); 194 int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule); 195 void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule); 196 void DES_string_to_key(const char *str, DES_cblock *key); 197 void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2); 198 void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out, long length, 199 DES_key_schedule *schedule, DES_cblock *ivec, int *num, 200 int enc); 201 void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out, long length, 202 DES_key_schedule *schedule, DES_cblock *ivec, int *num); 203 204 #define DES_fixup_key_parity DES_set_odd_parity 205 206 #ifdef __cplusplus 207 } 208 #endif 209 210 #endif 211