usr/src/uts/common/gssapi/mechs/krb5/include/des_int.h

   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*/