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DEFINITIONS
This source file includes following definitions.
- krb5_generate_subkey
- krb5_generate_subkey_extended
1 /*
2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include <krb5_locl.h>
35
36 RCSID("$Id$");
37
38 krb5_error_code KRB5_LIB_FUNCTION
39 krb5_generate_subkey(krb5_context context,
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40 const krb5_keyblock *key,
41 krb5_keyblock **subkey)
42 {
43 return krb5_generate_subkey_extended(context, key, key->keytype, subkey);
44 }
45
46 krb5_error_code KRB5_LIB_FUNCTION
47 krb5_generate_subkey_extended(krb5_context context,
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48 const krb5_keyblock *key,
49 krb5_enctype etype,
50 krb5_keyblock **subkey)
51 {
52 krb5_error_code ret;
53
54 ALLOC(*subkey, 1);
55 if (*subkey == NULL) {
56 krb5_set_error_message(context, ENOMEM,N_("malloc: out of memory", ""));
57 return ENOMEM;
58 }
59
60 if (etype == ETYPE_NULL)
61 etype = key->keytype; /* use session key etype */
62
63 /* XXX should we use the session key as input to the RF? */
64 ret = krb5_generate_random_keyblock(context, etype, *subkey);
65 if (ret != 0) {
66 free(*subkey);
67 *subkey = NULL;
68 }
69
70 return ret;
71 }
72