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/*
* Copyright 1995 by Richard P. Basch. All Rights Reserved.
* Copyright 1995 by Lehman Brothers, 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 Richard P. Basch, Lehman Brothers and M.I.T. not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. Richard P. Basch,
* Lehman Brothers and M.I.T. make no representations about the suitability
* of this software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#include "k5-int.h"
#include "des_int.h"
krb5_error_code
mit_des3_process_key (eblock, keyblock)
krb5_encrypt_block * eblock;
const krb5_keyblock * keyblock;
{
struct mit_des_ks_struct *schedule; /* pointer to key schedules */
if ((keyblock->enctype != ENCTYPE_DES3_CBC_SHA) &&
(keyblock->enctype != ENCTYPE_DES3_CBC_RAW))
return KRB5_PROG_ETYPE_NOSUPP;
if (keyblock->length != sizeof (mit_des3_cblock))
return KRB5_BAD_KEYSIZE;
if ( !(schedule = (struct mit_des_ks_struct *) malloc(3*sizeof(mit_des_key_schedule))) )
return ENOMEM;
#define cleanup() { free( (char *) schedule); }
switch (mit_des3_key_sched (*(mit_des3_cblock *)keyblock->contents,
*(mit_des3_key_schedule *)schedule)) {
case -1:
cleanup();
return KRB5DES_BAD_KEYPAR;
case -2:
cleanup();
return KRB5DES_WEAK_KEY;
}
eblock->key = (krb5_keyblock *) keyblock;
eblock->priv = (krb5_pointer) schedule;
eblock->priv_size = (krb5_int32) 3*sizeof(mit_des_key_schedule);
return 0;
}
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