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/*
* lib/crypto/des/des_int.h
*
* Copyright 1987, 1988, 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* Private include file for the Data Encryption Standard library.
*/
/*
* Copyright (C) 1998 by the FundsXpress, INC.
*
* All rights reserved.
*
* Export of this software from the United States of America may require
* a specific license from the United States Government. It is the
* responsibility of any person or organization contemplating export to
* obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of FundsXpress. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. FundsXpress makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* only do the whole thing once */
#ifndef DES_INTERNAL_DEFS
#define DES_INTERNAL_DEFS
#include <k5-int.h>
/*
* Begin "mit-des.h"
*/
#ifndef KRB5_MIT_DES__
#define KRB5_MIT_DES__
#if !defined(PROTOTYPE)
#if defined(__STDC__) || defined(_MSDOS)
#define PROTOTYPE(x) x
#else
#define PROTOTYPE(x) ()
#endif
#endif
typedef krb5_octet mit_des_cblock[8]; /* crypto-block size */
#ifndef DES_INT32
#ifdef SIZEOF_INT
#if SIZEOF_INT >= 4
#define DES_INT32 int
#else
#define DES_INT32 long
#endif
#else /* !defined(SIZEOF_INT) */
#include <limits.h>
#if (UINT_MAX >= 0xffffffff)
#define DES_INT32 int
#else
#define DES_INT32 long
#endif
#endif /* !defined(SIZEOF_INT) */
#endif /* !defined(DES_INT32) */
/* Key schedule--used internally by DES routines to gain some speed */
typedef struct mit_des_ks_struct {
DES_INT32 _[2];
} mit_des_key_schedule[16];
/* Triple-DES structures */
typedef mit_des_cblock mit_des3_cblock[3];
typedef mit_des_key_schedule mit_des3_key_schedule[3];
#define MIT_DES_ENCRYPT 1
#define MIT_DES_DECRYPT 0
typedef struct mit_des_ran_key_seed {
krb5_encrypt_block eblock;
krb5_data sequence;
} mit_des_random_state;
/* the first byte of the key is already in the keyblock */
#define MIT_DES_BLOCK_LENGTH (8*sizeof(krb5_octet))
#define MIT_DES_CBC_CRC_PAD_MINIMUM CRC32_CKSUM_LENGTH
/* This used to be 8*sizeof(krb5_octet) */
#define MIT_DES_KEYSIZE 8
#define MIT_DES_CBC_CKSUM_LENGTH (4*sizeof(krb5_octet))
/* cryptosystem entry descriptor for MIT's DES encryption library */
extern krb5_cs_table_entry krb5_raw_des_cst_entry;
extern krb5_cs_table_entry krb5_des_crc_cst_entry;
extern krb5_cs_table_entry krb5_des_md5_cst_entry;
extern krb5_cs_table_entry krb5_des3_sha_cst_entry;
extern krb5_cs_table_entry krb5_des3_raw_cst_entry;
extern krb5_checksum_entry krb5_des_cbc_cksumtable_entry;
/*
* Check if k5-int.h has been included before us. If so, then check to see
* that our view of the DES key size is the same as k5-int.h's.
*/
#ifdef KRB5_MIT_DES_KEYSIZE
#if MIT_DES_KEYSIZE != KRB5_MIT_DES_KEYSIZE
error(MIT_DES_KEYSIZE does not equal KRB5_MIT_DES_KEYSIZE)
#endif /* MIT_DES_KEYSIZE != KRB5_MIT_DES_KEYSIZE */
#endif /* KRB5_MIT_DES_KEYSIZE */
#endif /* KRB5_MIT_DES__ */
/*
* End "mit-des.h"
*/
/* afsstring2key.c */
extern krb5_error_code mit_afs_string_to_key
PROTOTYPE((krb5_keyblock FAR *keyblock,
const krb5_data FAR *data,
const krb5_data FAR *salt));
/* f_cksum.c */
extern unsigned long mit_des_cbc_cksum
PROTOTYPE((krb5_octet FAR *, krb5_octet FAR *, long , mit_des_key_schedule ,
krb5_octet FAR *));
/* f_ecb.c */
extern int mit_des_ecb_encrypt
PROTOTYPE((const mit_des_cblock FAR *, mit_des_cblock FAR *, mit_des_key_schedule , int ));
/* f_cbc.c */
extern int mit_des_cbc_encrypt
PROTOTYPE((const mit_des_cblock FAR *in, mit_des_cblock FAR *out, long length,
mit_des_key_schedule schedule, mit_des_cblock ivec,
int encrypt));
/* fin_rndkey.c */
extern krb5_error_code mit_des_finish_random_key
PROTOTYPE(( const krb5_encrypt_block FAR *,
krb5_pointer FAR *));
/* finish_key.c */
extern krb5_error_code mit_des_finish_key
PROTOTYPE(( krb5_encrypt_block FAR *));
/* init_rkey.c */
extern krb5_error_code mit_des_init_random_key
PROTOTYPE(( const krb5_encrypt_block FAR *,
const krb5_keyblock FAR *,
krb5_pointer FAR *));
/* key_parity.c */
extern void mit_des_fixup_key_parity PROTOTYPE((mit_des_cblock ));
extern int mit_des_check_key_parity PROTOTYPE((mit_des_cblock ));
/* key_sched.c */
extern int mit_des_key_sched
PROTOTYPE((mit_des_cblock , mit_des_key_schedule ));
/* process_ky.c */
extern krb5_error_code mit_des_process_key
PROTOTYPE(( krb5_encrypt_block FAR *, const krb5_keyblock FAR *));
/* random_key.c */
extern krb5_error_code mit_des_random_key
PROTOTYPE(( const krb5_encrypt_block FAR *, krb5_pointer ,
krb5_keyblock FAR * FAR *));
/* string2key.c */
extern krb5_error_code mit_des_string_to_key
PROTOTYPE(( const krb5_encrypt_block FAR *,
krb5_keyblock FAR *, const krb5_data FAR *, const krb5_data FAR *));
/* weak_key.c */
extern int mit_des_is_weak_key PROTOTYPE((mit_des_cblock ));
/* cmb_keys.c */
krb5_error_code mit_des_combine_subkeys
PROTOTYPE((const krb5_keyblock FAR *, const krb5_keyblock FAR *,
krb5_keyblock FAR * FAR *));
/* f_pcbc.c */
int mit_des_pcbc_encrypt ();
/* f_sched.c */
int make_key_sched PROTOTYPE((mit_des_cblock, mit_des_key_schedule));
/* misc.c */
extern void swap_bits PROTOTYPE((char FAR *));
extern unsigned long long_swap_bits PROTOTYPE((unsigned long ));
extern unsigned long swap_six_bits_to_ansi PROTOTYPE((unsigned long ));
extern unsigned long swap_four_bits_to_ansi PROTOTYPE((unsigned long ));
extern unsigned long swap_bit_pos_1 PROTOTYPE((unsigned long ));
extern unsigned long swap_bit_pos_0 PROTOTYPE((unsigned long ));
extern unsigned long swap_bit_pos_0_to_ansi PROTOTYPE((unsigned long ));
extern unsigned long rev_swap_bit_pos_0 PROTOTYPE((unsigned long ));
extern unsigned long swap_byte_bits PROTOTYPE((unsigned long ));
extern unsigned long swap_long_bytes_bit_number PROTOTYPE((unsigned long ));
#ifdef FILE
/* XXX depends on FILE being a #define! */
extern void test_set PROTOTYPE((FILE *, const char *, int, const char *, int));
#endif
/* d3_ecb.c */
extern int mit_des3_ecb_encrypt
PROTOTYPE((const mit_des_cblock FAR *in,
mit_des_cblock FAR *out,
mit_des_key_schedule sched1,
mit_des_key_schedule sched2,
mit_des_key_schedule sched3,
int encrypt));
/* d3_cbc.c */
extern int mit_des3_cbc_encrypt
PROTOTYPE((const mit_des_cblock FAR *in,
mit_des_cblock FAR *out,
long length,
mit_des_key_schedule ks1,
mit_des_key_schedule ks2,
mit_des_key_schedule ks3,
mit_des_cblock ivec,
int encrypt));
/* d3_procky.c */
extern krb5_error_code mit_des3_process_key
PROTOTYPE((krb5_encrypt_block * eblock,
const krb5_keyblock * keyblock));
/* d3_kysched.c */
extern int mit_des3_key_sched
PROTOTYPE((mit_des3_cblock key,
mit_des3_key_schedule schedule));
/* d3_str2ky.c */
extern krb5_error_code mit_des3_string_to_key
PROTOTYPE((const krb5_encrypt_block FAR * eblock,
krb5_keyblock FAR * keyblock,
const krb5_data FAR * data,
const krb5_data FAR * salt));
/* u_nfold.c */
extern krb5_error_code mit_des_n_fold
PROTOTYPE((const krb5_octet * input,
const size_t in_len,
krb5_octet * output,
const size_t out_len));
/* u_rn_key.c */
extern int mit_des_is_weak_keyblock
PROTOTYPE((krb5_keyblock *keyblock));
extern void mit_des_fixup_keyblock_parity
PROTOTYPE((krb5_keyblock *keyblock));
extern krb5_error_code mit_des_set_random_generator_seed
PROTOTYPE((const krb5_data * seed,
krb5_pointer random_state));
extern krb5_error_code mit_des_set_random_sequence_number
PROTOTYPE((const krb5_data * sequence,
krb5_pointer random_state));
#endif /*DES_INTERNAL_DEFS*/
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