Mercurial > dropbear

annotate libtomcrypt/src/pk/ecc/ecc_sizes.c @ 1647:07b0d56d186d

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Added tag DROPBEAR_2019.77 for changeset 6d1bbe7d5fa5
author Matt Johnston <matt@ucc.asn.au>
date Sat, 23 Mar 2019 21:54:21 +0800
parents 6dba84798cd5
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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10 /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b
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11 *
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12 * All curves taken from NIST recommendation paper of July 1999
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13 * Available at http://csrc.nist.gov/cryptval/dss.htm
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14 */
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15 #include "tomcrypt.h"
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17 /**
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18 @file ecc_sizes.c
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19 ECC Crypto, Tom St Denis
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20 */
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21
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22 #ifdef LTC_MECC
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24 void ecc_sizes(int *low, int *high)
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25 {
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26 int i;
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27 LTC_ARGCHKVD(low != NULL);
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28 LTC_ARGCHKVD(high != NULL);
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29
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30 *low = INT_MAX;
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31 *high = 0;
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32 for (i = 0; ltc_ecc_sets[i].size != 0; i++) {
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33 if (ltc_ecc_sets[i].size < *low) {
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34 *low = ltc_ecc_sets[i].size;
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35 }
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36 if (ltc_ecc_sets[i].size > *high) {
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37 *high = ltc_ecc_sets[i].size;
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38 }
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39 }
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40 }
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42 #endif
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43 /* ref: $Format:%D$ */
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44 /* git commit: $Format:%H$ */
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45 /* commit time: $Format:%ai$ */
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