ltc_ecc_points.c

00001 /*
00002 MiniTLS - A super trimmed down TLS/SSL Library for embedded devices
00003 Author: Donatien Garnier
00004 Copyright (C) 2013-2014 AppNearMe Ltd
00005 
00006 This program is free software; you can redistribute it and/or
00007 modify it under the terms of the GNU General Public License
00008 as published by the Free Software Foundation; either version 2
00009 of the License, or (at your option) any later version.
00010 
00011 This program is distributed in the hope that it will be useful,
00012 but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 GNU General Public License for more details.
00015 
00016 You should have received a copy of the GNU General Public License
00017 along with this program; if not, write to the Free Software
00018 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00019 *//* LibTomCrypt, modular cryptographic library -- Tom St Denis
00020  *
00021  * LibTomCrypt is a library that provides various cryptographic
00022  * algorithms in a highly modular and flexible manner.
00023  *
00024  * The library is free for all purposes without any express
00025  * guarantee it works.
00026  *
00027  * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
00028  */
00029 
00030 /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b
00031  *
00032  * All curves taken from NIST recommendation paper of July 1999
00033  * Available at http://csrc.nist.gov/cryptval/dss.htm
00034  */
00035 #include "ltc.h"
00036 
00037 /**
00038   @file ltc_ecc_points.c
00039   ECC Crypto, Tom St Denis
00040 */  
00041 
00042 //Nodynamic alloc
00043 #if 0 //ifdef LTC_MECC
00044 
00045 /**
00046    Allocate a new ECC point
00047    @return A newly allocated point or NULL on error 
00048 */
00049 ecc_point *ltc_ecc_new_point(void)
00050 {
00051    ecc_point *p;
00052    p = XCALLOC(1, sizeof(*p));
00053    if (p == NULL) {
00054       return NULL;
00055    }
00056    if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != CRYPT_OK) {
00057       XFREE(p);
00058       return NULL;
00059    }
00060    return p;
00061 }
00062 
00063 /** Free an ECC point from memory
00064   @param p   The point to free
00065 */
00066 void ltc_ecc_del_point(ecc_point *p)
00067 {
00068    /* prevents free'ing null arguments */
00069    if (p != NULL) {
00070       mp_clear_multi(p->x, p->y, p->z, NULL); /* note: p->z may be NULL but that's ok with this function anyways */
00071       XFREE(p);
00072    }
00073 }
00074 
00075 #endif
00076 /* $Source: /cvs/libtom/libtomcrypt/src/pk/ecc/ltc_ecc_points.c,v $ */
00077 /* $Revision: 1.7 $ */
00078 /* $Date: 2007/05/12 14:32:35 $ */
00079