tomcrypt/demos/demo_crypt_sizes.c
2014-07-14 15:47:20 +02:00

51 lines
1.3 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"
#include "tomcrypt_misc.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;
printf("\n");
// given a specific size name, get and print its size
char name[] = "ecc_key_struct_size";
int size;
rc = crypt_get_size(name, &size);
printf(" %s is %d \n", name, size);
printf("\n");
// 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", sizes_list_len);
printf("\n");
// 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: %s \n", sizes_list);
printf("\n");
}
/* $Source: $ */
/* $Revision: $ */
/* $Date: $ */