/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#include "tomcrypt_private.h"
/**
@file ecc_sizes.c
ECC Crypto, Tom St Denis
*/
#ifdef LTC_MECC
void ecc_sizes(int *low, int *high)
{
int i, size;
void *prime;
LTC_ARGCHKVD(low != NULL);
LTC_ARGCHKVD(high != NULL);
*low = INT_MAX;
*high = 0;
if (mp_init(&prime) == CRYPT_OK) {
for (i = 0; ltc_ecc_curves[i].prime != NULL; i++) {
if (mp_read_radix(prime, ltc_ecc_curves[i].prime, 16) == CRYPT_OK) {
size = mp_unsigned_bin_size(prime);
if (size < *low) *low = size;
if (size > *high) *high = size;
}
}
mp_clear(prime);
}
}
#endif