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/*
* $Source$
* $Author$
* $Id$
*
* Copyright 1989,1990 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. 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.
*
*
* MIT Data Encryption Standard software implementation declarations.
*/
#ifndef KRB5_MIT_DES__
#define KRB5_MIT_DES__
typedef krb5_octet mit_des_cblock[8]; /* crypto-block size */
/* Key schedule--used internally by DES routines to gain some speed */
typedef struct mit_des_ks_struct {
mit_des_cblock _;
} mit_des_key_schedule[16];
#define MIT_DES_ENCRYPT 1
#define MIT_DES_DECRYPT 0
typedef struct mit_des_ran_key_seed {
krb5_octet sequence_number[8];
mit_des_key_schedule random_sequence_key;
} mit_des_random_key_seed;
/* 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
#define MIT_DES_KEYSIZE (8*sizeof(krb5_octet))
#define MIT_DES_CBC_CKSUM_LENGTH (4*sizeof(krb5_octet))
/* cryptosystem entry descriptor for MIT's DES encryption library */
extern krb5_cryptosystem_entry mit_des_cryptosystem_entry;
extern krb5_checksum_entry mit_des_cbc_cksumtable_entry;
#endif /* KRB5_MIT_DES__ */
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