43 lines
897 B
C
43 lines
897 B
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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#include "tomcrypt_private.h"
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wconversion"
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#pragma clang diagnostic ignored "-Wshorten-64-to-32"
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/**
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@file ecc_sizes.c
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ECC Crypto, Tom St Denis
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*/
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#ifdef LTC_MECC
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void ecc_sizes(int *low, int *high)
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{
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int i, size;
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void *prime;
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LTC_ARGCHKVD(low != NULL);
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LTC_ARGCHKVD(high != NULL);
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*low = INT_MAX;
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*high = 0;
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if (ltc_mp_init(&prime) == CRYPT_OK) {
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for (i = 0; ltc_ecc_curves[i].prime != NULL; i++) {
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if (ltc_mp_read_radix(prime, ltc_ecc_curves[i].prime, 16) == CRYPT_OK) {
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size = ltc_mp_unsigned_bin_size(prime);
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if (size < *low) *low = size;
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if (size > *high) *high = size;
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}
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}
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ltc_mp_clear(prime);
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}
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}
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#endif
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#pragma clang diagnostic pop
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