blob: 41b8dd3a9ed8ef637a6b45c1846b80a3d1215012 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* lib/krb5/krb/gen_subkey.c
*
* Copyright 1991 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.
*
*
* Routine to automatically generate a subsession key based on an input key.
*/
#include "k5-int.h"
krb5_error_code
krb5_generate_subkey(context, key, subkey)
krb5_context context;
krb5_const krb5_keyblock *key;
krb5_keyblock **subkey;
{
krb5_error_code retval;
krb5_data seed;
seed.length = key->length;
seed.data = key->contents;
if ((retval = krb5_c_random_seed(context, &seed)))
return(retval);
if ((*subkey = (krb5_keyblock *) malloc(sizeof(krb5_keyblock))) == NULL)
return(ENOMEM);
if ((retval = krb5_c_make_random_key(context, key->enctype, *subkey))) {
krb5_xfree(*subkey);
return(retval);
}
return(0);
}
|