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      1 /*	$NetBSD: crypto-null.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 - 2008 Kungliga Tekniska Hgskolan
      5  * (Royal Institute of Technology, Stockholm, Sweden).
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  *
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  *
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * 3. Neither the name of the Institute nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include "krb5_locl.h"
     37 
     38 #ifndef HEIMDAL_SMALLER
     39 #define DES3_OLD_ENCTYPE 1
     40 #endif
     41 
     42 static struct _krb5_key_type keytype_null = {
     43     KRB5_ENCTYPE_NULL,
     44     "null",
     45     0,
     46     0,
     47     0,
     48     NULL,
     49     NULL,
     50     NULL,
     51     NULL,
     52     NULL,
     53     NULL
     54 };
     55 
     56 static krb5_error_code
     57 NONE_checksum(krb5_context context,
     58 	      struct _krb5_key_data *key,
     59 	      const void *data,
     60 	      size_t len,
     61 	      unsigned usage,
     62 	      Checksum *C)
     63 {
     64     return 0;
     65 }
     66 
     67 struct _krb5_checksum_type _krb5_checksum_none = {
     68     CKSUMTYPE_NONE,
     69     "none",
     70     1,
     71     0,
     72     0,
     73     NONE_checksum,
     74     NULL
     75 };
     76 
     77 static krb5_error_code
     78 NULL_encrypt(krb5_context context,
     79 	     struct _krb5_key_data *key,
     80 	     void *data,
     81 	     size_t len,
     82 	     krb5_boolean encryptp,
     83 	     int usage,
     84 	     void *ivec)
     85 {
     86     return 0;
     87 }
     88 
     89 struct _krb5_encryption_type _krb5_enctype_null = {
     90     ETYPE_NULL,
     91     "null",
     92     NULL,
     93     1,
     94     1,
     95     0,
     96     &keytype_null,
     97     &_krb5_checksum_none,
     98     NULL,
     99     F_DISABLED,
    100     NULL_encrypt,
    101     0,
    102     NULL
    103 };
    104