tomcrypt/demos/sizes.c
2017-03-26 21:38:02 +02:00

49 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"
/**
@file demo_crypt_sizes.c
Demo how to get various sizes to dynamic languages
like Python - Larry Bugbee, February 2013
*/
int main(void) {
/* given a specific size name, get and print its size */
char name[] = "ecc_key";
unsigned int size;
char *sizes_list;
unsigned int sizes_list_len;
if(crypt_get_size(name, &size) != 0)
exit(EXIT_FAILURE);
printf("\n size of '%s' is %u \n\n", name, size);
/* get and print the length of the names (and sizes) list */
if(crypt_list_all_sizes(NULL, &sizes_list_len) != 0)
exit(EXIT_FAILURE);
printf(" need to allocate %u bytes \n\n", sizes_list_len);
/* get and print the names (and sizes) list */
sizes_list = malloc(sizes_list_len);
if(crypt_list_all_sizes(sizes_list, &sizes_list_len) != 0)
exit(EXIT_FAILURE);
printf(" supported sizes:\n\n%s\n\n", sizes_list);
return 0;
}
/* $Source: $ */
/* $Revision: $ */
/* $Date: $ */