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/*
* Copyright (c) 2005 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 KTH 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 KTH AND ITS 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 KTH OR ITS 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"
#include <err.h>
#include <getarg.h>
RCSID("$Id: test_crypto_wrapping.c 18809 2006-10-22 07:11:43Z lha $");
static void
test_wrapping(krb5_context context,
size_t min_size,
size_t max_size,
size_t step,
krb5_enctype etype)
{
krb5_error_code ret;
krb5_keyblock key;
krb5_crypto crypto;
krb5_data data;
char *etype_name;
void *buf;
size_t size;
ret = krb5_generate_random_keyblock(context, etype, &key);
if (ret)
krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
ret = krb5_enctype_to_string(context, etype, &etype_name);
if (ret)
krb5_err(context, 1, ret, "krb5_enctype_to_string");
buf = malloc(max_size);
if (buf == NULL)
krb5_errx(context, 1, "out of memory");
memset(buf, 0, max_size);
ret = krb5_crypto_init(context, &key, 0, &crypto);
if (ret)
krb5_err(context, 1, ret, "krb5_crypto_init");
for (size = min_size; size < max_size; size += step) {
size_t wrapped_size;
ret = krb5_encrypt(context, crypto, 0, buf, size, &data);
if (ret)
krb5_err(context, 1, ret, "encrypt size %lu using %s",
(unsigned long)size, etype_name);
wrapped_size = krb5_get_wrapped_length(context, crypto, size);
if (wrapped_size != data.length)
krb5_errx(context, 1, "calculated wrapped length %lu != "
"real wrapped length %lu for data length %lu using "
"enctype %s",
(unsigned long)wrapped_size,
(unsigned long)data.length,
(unsigned long)size,
etype_name);
krb5_data_free(&data);
}
free(etype_name);
free(buf);
krb5_crypto_destroy(context, crypto);
krb5_free_keyblock_contents(context, &key);
}
static int version_flag = 0;
static int help_flag = 0;
static struct getargs args[] = {
{"version", 0, arg_flag, &version_flag,
"print version", NULL },
{"help", 0, arg_flag, &help_flag,
NULL, NULL }
};
static void
usage (int ret)
{
arg_printusage (args,
sizeof(args)/sizeof(*args),
NULL,
"");
exit (ret);
}
int
main(int argc, char **argv)
{
krb5_context context;
krb5_error_code ret;
int i, optidx = 0;
krb5_enctype enctypes[] = {
ETYPE_DES_CBC_CRC,
ETYPE_DES_CBC_MD4,
ETYPE_DES_CBC_MD5,
ETYPE_DES3_CBC_SHA1,
ETYPE_ARCFOUR_HMAC_MD5,
ETYPE_AES128_CTS_HMAC_SHA1_96,
ETYPE_AES256_CTS_HMAC_SHA1_96
};
setprogname(argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optidx;
argv += optidx;
ret = krb5_init_context(&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
for (i = 0; i < sizeof(enctypes)/sizeof(enctypes[0]); i++) {
test_wrapping(context, 0, 1024, 1, enctypes[i]);
test_wrapping(context, 1024, 1024 * 100, 1024, enctypes[i]);
}
krb5_free_context(context);
return 0;
}
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