| /* 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, tomstdenis@gmail.com, 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 $ */ |
| |