Mercurial > dropbear
diff libtomcrypt/src/pk/ecc/ltc_ecc_points.c @ 478:d4f32c3443ac dbclient-netcat-alike
propagate from branch 'au.asn.ucc.matt.dropbear' (head f21045c791002d81fc6b8dde6537ea481e513eb2)
to branch 'au.asn.ucc.matt.dropbear.dbclient-netcat-alike' (head d1f69334581dc4c35f9ca16aa5355074c9dd315d)
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sun, 14 Sep 2008 06:47:51 +0000 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtomcrypt/src/pk/ecc/ltc_ecc_points.c Sun Sep 14 06:47:51 2008 +0000 @@ -0,0 +1,60 @@ +/* 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 $ */ +