libtomcrypt/demos/demo_crypt_sizes.c
2014-07-15 15:28:29 +02:00

46 lines
1.2 KiB
C

/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "tomcrypt.h"
/**
@file demo_crypt_sizes.c
Demo how to get various sizes to dynamic languages
like Python - Larry Bugbee, February 2013
*/
int main(void) {
int rc;
// given a specific size name, get and print its size
char name[] = "ecc_key";
int size;
rc = crypt_get_size(name, &size);
printf("\n size of '%s' is %d \n\n", name, size);
// get and print the length of the names (and sizes) list
char *sizes_list;
unsigned long sizes_list_len;
rc = crypt_list_all_sizes(NULL, &sizes_list_len);
printf(" need to allocate %lu bytes \n\n", sizes_list_len);
// get and print the names (and sizes) list
sizes_list = malloc(sizes_list_len);
rc = crypt_list_all_sizes(sizes_list, &sizes_list_len);
printf(" supported sizes:\n\n%s\n\n", sizes_list);
}
/* $Source: $ */
/* $Revision: $ */
/* $Date: $ */