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59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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/* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b
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*
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* All curves taken from NIST recommendation paper of July 1999
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* Available at http://csrc.nist.gov/cryptval/dss.htm
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*/
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#include "tomcrypt.h"
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/**
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@file ltc_ecc_points.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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/**
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Allocate a new ECC point
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@return A newly allocated point or NULL on error
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*/
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ecc_point *ltc_ecc_new_point(void)
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{
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ecc_point *p;
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p = XCALLOC(1, sizeof(*p));
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if (p == NULL) {
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return NULL;
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}
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if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != CRYPT_OK) {
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XFREE(p);
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return NULL;
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}
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return p;
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}
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/** Free an ECC point from memory
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@param p The point to free
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*/
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void ltc_ecc_del_point(ecc_point *p)
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{
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/* prevents free'ing null arguments */
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if (p != NULL) {
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mp_clear_multi(p->x, p->y, p->z, NULL); /* note: p->z may be NULL but that's ok with this function anyways */
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XFREE(p);
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}
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}
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#endif
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/* ref: HEAD -> master, tag: v1.18.2 */
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/* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */
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/* commit time: 2018-07-01 22:49:01 +0200 */
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