1 /*
2 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6
7 /*
8 * Copyright (C) 1998 by the FundsXpress, INC.
9 *
10 * All rights reserved.
11 *
12 * Export of this software from the United States of America may require
13 * a specific license from the United States Government. It is the
14 * responsibility of any person or organization contemplating export to
15 * obtain such a license before exporting.
16 *
17 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
18 * distribute this software and its documentation for any purpose and
19 * without fee is hereby granted, provided that the above copyright
20 * notice appear in all copies and that both that copyright notice and
21 * this permission notice appear in supporting documentation, and that
22 * the name of FundsXpress. not be used in advertising or publicity pertaining
23 * to distribution of the software without specific, written prior
24 * permission. FundsXpress makes no representations about the suitability of
25 * this software for any purpose. It is provided "as is" without express
26 * or implied warranty.
27 *
28 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
29 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
30 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
31 */
32
33 #include "k5-int.h"
34 #include "des_int.h"
35 #include "keyhash_provider.h"
36 #ifdef _KERNEL
37 #include <sys/kmem.h>
38 #include <sys/crypto/api.h>
39 #endif
40
41 /*ARGSUSED*/
42 static krb5_error_code
k5_descbc_hash(krb5_context context,krb5_const krb5_keyblock * key,krb5_keyusage usage,krb5_const krb5_data * ivec,krb5_const krb5_data * input,krb5_data * output)43 k5_descbc_hash(krb5_context context,
44 krb5_const krb5_keyblock *key,
45 krb5_keyusage usage,
46 krb5_const krb5_data *ivec,
47 krb5_const krb5_data *input, krb5_data *output)
48 {
49 int ret;
50 krb5_data zero_ivec;
51
52 if (key->length != MIT_DES_KEYSIZE)
53 return(KRB5_BAD_KEYSIZE);
54 if ((input->length%8) != 0)
55 return(KRB5_BAD_MSIZE);
56 if (ivec && (ivec->length != MIT_DES_BLOCK_LENGTH))
57 return(KRB5_CRYPTO_INTERNAL);
58 if (output->length != MIT_DES_BLOCK_LENGTH)
59 return(KRB5_CRYPTO_INTERNAL);
60
61 zero_ivec.data = (char *)mit_des_zeroblock;
62 zero_ivec.length = sizeof(mit_des_zeroblock);
63
64 ret = k5_ef_mac(context, (krb5_keyblock *)key,
65 ivec ? (krb5_data *)ivec : &zero_ivec, input, output);
66
67 return(ret);
68 }
69
70 const struct krb5_keyhash_provider krb5int_keyhash_descbc = {
71 MIT_DES_BLOCK_LENGTH,
72 k5_descbc_hash,
73 NULL
74 };
75