Mercurial > dropbear
view libtomcrypt/src/pk/ecc/ltc_ecc_points.c @ 549:7f552ea5bf72 maemo
merge of '3450609f92928775614418f40dd44ed5393d9de4'
and '6a58c90036c543b4d992489843a999156f665e61'
author | Matt Johnston <matt@ucc.asn.au> |
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date | Wed, 01 Jul 2009 05:14:51 +0000 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://libtomcrypt.com */ /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b * * All curves taken from NIST recommendation paper of July 1999 * Available at http://csrc.nist.gov/cryptval/dss.htm */ #include "tomcrypt.h" /** @file ltc_ecc_points.c ECC Crypto, Tom St Denis */ #ifdef MECC /** Allocate a new ECC point @return A newly allocated point or NULL on error */ ecc_point *ltc_ecc_new_point(void) { ecc_point *p; p = XCALLOC(1, sizeof(*p)); if (p == NULL) { return NULL; } if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != CRYPT_OK) { XFREE(p); return NULL; } return p; } /** Free an ECC point from memory @param p The point to free */ void ltc_ecc_del_point(ecc_point *p) { /* prevents free'ing null arguments */ if (p != NULL) { mp_clear_multi(p->x, p->y, p->z, NULL); /* note: p->z may be NULL but that's ok with this function anyways */ XFREE(p); } } #endif /* $Source: /cvs/libtom/libtomcrypt/src/pk/ecc/ltc_ecc_points.c,v $ */ /* $Revision: 1.5 $ */ /* $Date: 2006/12/04 02:19:48 $ */