3c0343f2c1
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14791 ec53bebd-3082-4978-b11e-865c3cabbd6b
133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "krb5_locl.h"
|
|
|
|
RCSID("$Id$");
|
|
|
|
void KRB5_LIB_FUNCTION
|
|
krb5_keyblock_zero(krb5_keyblock *keyblock)
|
|
{
|
|
keyblock->keytype = 0;
|
|
krb5_data_zero(&keyblock->keyvalue);
|
|
}
|
|
|
|
void KRB5_LIB_FUNCTION
|
|
krb5_free_keyblock_contents(krb5_context context,
|
|
krb5_keyblock *keyblock)
|
|
{
|
|
if(keyblock) {
|
|
if (keyblock->keyvalue.data != NULL)
|
|
memset(keyblock->keyvalue.data, 0, keyblock->keyvalue.length);
|
|
krb5_data_free (&keyblock->keyvalue);
|
|
}
|
|
}
|
|
|
|
void KRB5_LIB_FUNCTION
|
|
krb5_free_keyblock(krb5_context context,
|
|
krb5_keyblock *keyblock)
|
|
{
|
|
if(keyblock){
|
|
krb5_free_keyblock_contents(context, keyblock);
|
|
free(keyblock);
|
|
}
|
|
}
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_copy_keyblock_contents (krb5_context context,
|
|
const krb5_keyblock *inblock,
|
|
krb5_keyblock *to)
|
|
{
|
|
return copy_EncryptionKey(inblock, to);
|
|
}
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_copy_keyblock (krb5_context context,
|
|
const krb5_keyblock *inblock,
|
|
krb5_keyblock **to)
|
|
{
|
|
krb5_keyblock *k;
|
|
|
|
k = malloc (sizeof(*k));
|
|
if (k == NULL) {
|
|
krb5_set_error_string(context, "malloc: out of memory");
|
|
return ENOMEM;
|
|
}
|
|
*to = k;
|
|
return krb5_copy_keyblock_contents (context, inblock, k);
|
|
}
|
|
|
|
krb5_enctype
|
|
krb5_keyblock_get_enctype(const krb5_keyblock *block)
|
|
{
|
|
return block->keytype;
|
|
}
|
|
|
|
/*
|
|
* Fill in `key' with key data of type `enctype' from `data' of length
|
|
* `size'. Key should be freed using krb5_free_keyblock_contents.
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_keyblock_init(krb5_context context,
|
|
krb5_enctype type,
|
|
const void *data,
|
|
size_t size,
|
|
krb5_keyblock *key)
|
|
{
|
|
krb5_error_code ret;
|
|
size_t len;
|
|
|
|
memset(key, 0, sizeof(*key));
|
|
|
|
ret = krb5_enctype_keysize(context, type, &len);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (len != size) {
|
|
krb5_set_error_string(context, "Encryption key %d is %lu bytes "
|
|
"long, %lu was passed in",
|
|
type, (unsigned long)len, (unsigned long)size);
|
|
return KRB5_PROG_ETYPE_NOSUPP;
|
|
}
|
|
ret = krb5_data_copy(&key->keyvalue, data, len);
|
|
if(ret) {
|
|
krb5_set_error_string(context, "malloc failed: %lu",
|
|
(unsigned long)len);
|
|
return ret;
|
|
}
|
|
key->keytype = type;
|
|
|
|
return 0;
|
|
}
|