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/*
* Copyright 1993 by OpenVision Technologies, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of OpenVision not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. OpenVision makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "gssapiP_krb5.h"
#include <memory.h>
/*
* $Id$
*/
static unsigned char zeros[16] = {0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0};
krb5_error_code
kg_make_seed(context, key, seed)
krb5_context context;
krb5_keyblock *key;
unsigned char *seed;
{
krb5_error_code code;
krb5_gss_enc_desc ed;
int i;
if (code = krb5_copy_keyblock(context, key, &ed.key))
return(code);
/* reverse the key bytes, as per spec */
for (i=0; i<ed.key->length; i++)
ed.key->contents[i] = key->contents[key->length - 1 - i];
krb5_use_enctype(context, &ed.eblock, ENCTYPE_DES_CBC_RAW);
ed.processed = 0;
code = kg_encrypt(context, &ed, NULL, zeros, seed, 16);
krb5_finish_key(context, &ed.eblock);
krb5_free_keyblock(context, ed.key);
return(code);
}
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