1 /* 2 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * lib/crypto/des/des_int.h 8 * 9 * Copyright 1987, 1988, 1990, 2002 by the Massachusetts Institute of 10 * Technology. All Rights Reserved. 11 * 12 * Export of this software from the United States of America may 13 * require a specific license from the United States Government. 14 * It is the responsibility of any person or organization contemplating 15 * export to obtain such a license before exporting. 16 * 17 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 18 * distribute this software and its documentation for any purpose and 19 * without fee is hereby granted, provided that the above copyright 20 * notice appear in all copies and that both that copyright notice and 21 * this permission notice appear in supporting documentation, and that 22 * the name of M.I.T. not be used in advertising or publicity pertaining 23 * to distribution of the software without specific, written prior 24 * permission. Furthermore if you modify this software you must label 25 * your software as modified software and not distribute it in such a 26 * fashion that it might be confused with the original M.I.T. software. 27 * M.I.T. makes no representations about the suitability of 28 * this software for any purpose. It is provided "as is" without express 29 * or implied warranty. 30 * 31 * 32 * Private include file for the Data Encryption Standard library. 33 */ 34 35 /* 36 * Copyright (C) 1998 by the FundsXpress, INC. 37 * 38 * All rights reserved. 39 * 40 * Export of this software from the United States of America may require 41 * a specific license from the United States Government. It is the 42 * responsibility of any person or organization contemplating export to 43 * obtain such a license before exporting. 44 * 45 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 46 * distribute this software and its documentation for any purpose and 47 * without fee is hereby granted, provided that the above copyright 48 * notice appear in all copies and that both that copyright notice and 49 * this permission notice appear in supporting documentation, and that 50 * the name of FundsXpress. not be used in advertising or publicity pertaining 51 * to distribution of the software without specific, written prior 52 * permission. FundsXpress makes no representations about the suitability of 53 * this software for any purpose. It is provided "as is" without express 54 * or implied warranty. 55 * 56 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 57 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 58 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 59 */ 60 61 /* only do the whole thing once */ 62 #ifndef DES_INTERNAL_DEFS 63 #define DES_INTERNAL_DEFS 64 65 66 #include "k5-int.h" 67 /* 68 * Begin "mit-des.h" 69 */ 70 #ifndef KRB5_MIT_DES__ 71 #define KRB5_MIT_DES__ 72 73 #if 0 /* SUNW14resync */ 74 #define KRB5INT_CRYPTO_DES_INT /* skip krb4-specific DES stuff */ 75 #include "kerberosIV/des.h" /* for des_key_schedule, etc. */ 76 #undef KRB5INT_CRYPTO_DES_INT /* don't screw other inclusions of des.h */ 77 #endif 78 79 /* 80 * SUNW14resync 81 * Solaris Kerberos does not do krb4 so we don't have its des.h file 82 * but we need a few symbols from it so we include them here. 83 */ 84 /* begin: from mit kerberosIV/des.h */ 85 #if UINT_MAX >= 0xFFFFFFFFUL 86 #define DES_INT32 int 87 #define DES_UINT32 unsigned int 88 #else 89 #define DES_INT32 long 90 #define DES_UINT32 unsigned long 91 #endif 92 /* end: from mit kerberosIV/des.h */ 93 94 typedef unsigned char des_cblock[8]; /* crypto-block size */ 95 typedef struct des_ks_struct { DES_INT32 _[2]; } des_key_schedule[16]; 96 97 98 typedef des_cblock mit_des_cblock; 99 typedef des_key_schedule mit_des_key_schedule; 100 101 /* Triple-DES structures */ 102 typedef mit_des_cblock mit_des3_cblock[3]; 103 typedef mit_des_key_schedule mit_des3_key_schedule[3]; 104 105 #define MIT_DES_ENCRYPT 1 106 #define MIT_DES_DECRYPT 0 107 108 #define K5ROUNDUP(x, align) (-(-(x) & -(align))) 109 110 /* the first byte of the key is already in the keyblock */ 111 112 #define MIT_DES_BLOCK_LENGTH (8*sizeof(krb5_octet)) 113 #define MIT_DES_CBC_CRC_PAD_MINIMUM CRC32_CKSUM_LENGTH 114 /* This used to be 8*sizeof(krb5_octet) */ 115 #define MIT_DES_KEYSIZE 8 116 117 #define MIT_DES_CBC_CKSUM_LENGTH (4*sizeof(krb5_octet)) 118 119 /* 120 * Check if k5-int.h has been included before us. If so, then check to see 121 * that our view of the DES key size is the same as k5-int.h's. 122 */ 123 #ifdef KRB5_MIT_DES_KEYSIZE 124 #if MIT_DES_KEYSIZE != KRB5_MIT_DES_KEYSIZE 125 error(MIT_DES_KEYSIZE does not equal KRB5_MIT_DES_KEYSIZE) 126 #endif /* MIT_DES_KEYSIZE != KRB5_MIT_DES_KEYSIZE */ 127 #endif /* KRB5_MIT_DES_KEYSIZE */ 128 #endif /* KRB5_MIT_DES__ */ 129 /* 130 * End "mit-des.h" 131 */ 132 133 #ifndef _KERNEL 134 /* afsstring2key.c */ 135 extern krb5_error_code mit_afs_string_to_key 136 (krb5_context context, 137 krb5_keyblock *keyblock, 138 const krb5_data *data, 139 const krb5_data *salt); 140 #endif 141 142 /* f_cksum.c */ 143 extern unsigned long mit_des_cbc_cksum 144 ( krb5_context context, 145 const krb5_octet *, krb5_octet *, unsigned long , 146 krb5_keyblock *, const krb5_octet *); 147 148 /* f_cbc.c */ 149 extern int mit_des_cbc_encrypt 150 (krb5_context context, 151 const mit_des_cblock *in, 152 mit_des_cblock *out, long length, 153 krb5_keyblock *key, 154 mit_des_cblock ivec, 155 int encrypt); 156 157 #define mit_des_zeroblock krb5int_c_mit_des_zeroblock 158 extern const mit_des_cblock mit_des_zeroblock; 159 160 /* fin_rndkey.c */ 161 extern krb5_error_code mit_des_finish_random_key 162 ( const krb5_encrypt_block *, 163 krb5_pointer *); 164 165 /* finish_key.c */ 166 extern krb5_error_code mit_des_finish_key 167 ( krb5_encrypt_block *); 168 169 /* key_parity.c */ 170 extern void mit_des_fixup_key_parity (mit_des_cblock ); 171 extern int mit_des_check_key_parity (mit_des_cblock ); 172 173 /* process_ky.c */ 174 extern krb5_error_code mit_des_process_key 175 ( krb5_encrypt_block *, const krb5_keyblock *); 176 177 /* string2key.c */ 178 extern krb5_error_code mit_des_string_to_key 179 ( const krb5_encrypt_block *, 180 krb5_keyblock *, const krb5_data *, const krb5_data *); 181 182 /* weak_key.c */ 183 extern int mit_des_is_weak_key (mit_des_cblock ); 184 185 /* cmb_keys.c */ 186 krb5_error_code mit_des_combine_subkeys 187 (const krb5_keyblock *, const krb5_keyblock *, 188 krb5_keyblock **); 189 190 /* f_pcbc.c */ 191 int mit_des_pcbc_encrypt (); 192 193 /* f_sched.c */ 194 int mit_des_make_key_sched(mit_des_cblock, mit_des_key_schedule); 195 196 197 /* misc.c */ 198 extern void swap_bits (char *); 199 extern unsigned long long_swap_bits (unsigned long ); 200 extern unsigned long swap_six_bits_to_ansi (unsigned long ); 201 extern unsigned long swap_four_bits_to_ansi (unsigned long ); 202 extern unsigned long swap_bit_pos_1 (unsigned long ); 203 extern unsigned long swap_bit_pos_0 (unsigned long ); 204 extern unsigned long swap_bit_pos_0_to_ansi (unsigned long ); 205 extern unsigned long rev_swap_bit_pos_0 (unsigned long ); 206 extern unsigned long swap_byte_bits (unsigned long ); 207 extern unsigned long swap_long_bytes_bit_number (unsigned long ); 208 #ifdef FILE 209 /* XXX depends on FILE being a #define! */ 210 extern void test_set (FILE *, const char *, int, const char *, int); 211 #endif 212 213 /* d3_cbc.c */ 214 extern int mit_des3_cbc_encrypt 215 (krb5_context context, 216 const mit_des_cblock *in, 217 mit_des_cblock *out, 218 unsigned long length, 219 krb5_keyblock *key, 220 const mit_des_cblock ivec, 221 int enc); 222 223 /* d3_procky.c */ 224 extern krb5_error_code mit_des3_process_key 225 (krb5_encrypt_block * eblock, 226 const krb5_keyblock * keyblock); 227 228 /* d3_str2ky.c */ 229 extern krb5_error_code mit_des3_string_to_key 230 (const krb5_encrypt_block * eblock, 231 krb5_keyblock * keyblock, 232 const krb5_data * data, 233 const krb5_data * salt); 234 235 /* u_nfold.c */ 236 extern krb5_error_code mit_des_n_fold 237 (const krb5_octet * input, 238 const size_t in_len, 239 krb5_octet * output, 240 const size_t out_len); 241 242 extern krb5_error_code mit_des_set_random_sequence_number 243 (const krb5_data * sequence, 244 krb5_pointer random_state); 245 246 #endif /*DES_INTERNAL_DEFS*/ 247