03c4120244
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2734 ec53bebd-3082-4978-b11e-865c3cabbd6b
108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/*
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* Copyright (c) 1997 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Kungliga Tekniska
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* Högskolan and its contributors.
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*
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* 4. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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krb5_error_code
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krb5_generate_random_des_key(krb5_context context,
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krb5_keyblock *keyblock)
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{
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des_new_random_key(keyblock->keyvalue.data);
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return 0;
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}
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static struct key_type {
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int keytype;
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int keysize;
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krb5_error_code (*func)(krb5_context, krb5_keyblock*);
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} key_types[] = {
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{ KEYTYPE_DES, 8, krb5_generate_random_des_key },
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};
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static const int num_key_types = sizeof(key_types) / sizeof(key_types[0]);
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krb5_error_code
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krb5_generate_random_keyblock(krb5_context context,
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int keytype,
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krb5_keyblock *keyblock)
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{
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struct key_type *k;
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for(k = key_types; k < key_types + num_key_types; k++)
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if(keytype == k->keytype){
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keyblock->keytype = keytype;
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keyblock->keyvalue.length = k->keysize;
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keyblock->keyvalue.data = malloc(keyblock->keyvalue.length);
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return (*k->func)(context, keyblock);
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}
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return KRB5_PROG_KEYTYPE_NOSUPP;
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}
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void
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krb5_free_keyblock(krb5_context context,
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krb5_keyblock *keyblock)
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{
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memset(keyblock->keyvalue.data, 0, keyblock->keyvalue.length);
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krb5_data_free (&keyblock->keyvalue);
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}
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krb5_error_code
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krb5_copy_keyblock_contents (krb5_context context,
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const krb5_keyblock *inblock,
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krb5_keyblock *to)
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{
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to->keytype = inblock->keytype;
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return krb5_data_copy (&to->keyvalue,
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inblock->keyvalue.data,
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inblock->keyvalue.length);
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}
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krb5_error_code
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krb5_copy_keyblock (krb5_context context,
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const krb5_keyblock *inblock,
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krb5_keyblock **to)
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{
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krb5_keyblock *k;
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k = malloc (sizeof(*k));
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if (k == NULL)
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return ENOMEM;
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*to = k;
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return krb5_copy_keyblock_contents (context, inblock, k);
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}
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