xref: /freebsd/crypto/heimdal/lib/krb5/crypto-null.c (revision 43a5ec4eb41567cc92586503212743d89686d78f)
1 /*
2  * Copyright (c) 1997 - 2008 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 #ifndef HEIMDAL_SMALLER
37 #define DES3_OLD_ENCTYPE 1
38 #endif
39 
40 static struct _krb5_key_type keytype_null = {
41     ENCTYPE_NULL,
42     "null",
43     0,
44     0,
45     0,
46     NULL,
47     NULL,
48     NULL
49 };
50 
51 static krb5_error_code
52 NONE_checksum(krb5_context context,
53 	      struct _krb5_key_data *key,
54 	      const void *data,
55 	      size_t len,
56 	      unsigned usage,
57 	      Checksum *C)
58 {
59     return 0;
60 }
61 
62 struct _krb5_checksum_type _krb5_checksum_none = {
63     CKSUMTYPE_NONE,
64     "none",
65     1,
66     0,
67     0,
68     NONE_checksum,
69     NULL
70 };
71 
72 static krb5_error_code
73 NULL_encrypt(krb5_context context,
74 	     struct _krb5_key_data *key,
75 	     void *data,
76 	     size_t len,
77 	     krb5_boolean encryptp,
78 	     int usage,
79 	     void *ivec)
80 {
81     return 0;
82 }
83 
84 struct _krb5_encryption_type _krb5_enctype_null = {
85     ETYPE_NULL,
86     "null",
87     1,
88     1,
89     0,
90     &keytype_null,
91     &_krb5_checksum_none,
92     NULL,
93     F_DISABLED,
94     NULL_encrypt,
95     0,
96     NULL
97 };
98