lib/krb5/crypto-null.c

   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     KRB5_ENCTYPE_NULL,
  42     "null",
  43     0,
  44     0,
  45     0,
  46     NULL,
  47     NULL,
  48     NULL,
  49     NULL,
  50     NULL,
  51     NULL
  52 };
  53
  54 static krb5_error_code
  55 NONE_checksum(krb5_context context,
  56               krb5_crypto crypto,
  57               struct _krb5_key_data *key,
  58               unsigned usage,
  59               const struct krb5_crypto_iov *iov,
  60               int niov,
  61               Checksum *C)
  62 {
  63     return 0;
  64 }
  65
  66 struct _krb5_checksum_type _krb5_checksum_none = {
  67     CKSUMTYPE_NONE,
  68     "none",
  69     1,
  70     0,
  71     0,
  72     NONE_checksum,
  73     NULL
  74 };
  75
  76 static krb5_error_code
  77 NULL_encrypt(krb5_context context,
  78              struct _krb5_key_data *key,
  79              void *data,
  80              size_t len,
  81              krb5_boolean encryptp,
  82              int usage,
  83              void *ivec)
  84 {
  85     return 0;
  86 }
  87
  88 struct _krb5_encryption_type _krb5_enctype_null = {
  89     ETYPE_NULL,
  90     "null",
  91     NULL,
  92     1,
  93     1,
  94     0,
  95     &keytype_null,
  96     &_krb5_checksum_none,
  97     NULL,
  98     F_DISABLED | F_OLD,
  99     NULL_encrypt,
 100     NULL,
 101     0,
 102     NULL
 103 };