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Diffstat (limited to 'lib/nettle/ltc_ecc_points.c')
-rw-r--r-- | lib/nettle/ltc_ecc_points.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/nettle/ltc_ecc_points.c b/lib/nettle/ltc_ecc_points.c new file mode 100644 index 0000000000..93ad85d403 --- /dev/null +++ b/lib/nettle/ltc_ecc_points.c @@ -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, tomstdenis@gmail.com, http://libtom.org + */ + +/* 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 "ecc.h" + +/** + @file ltc_ecc_points.c + ECC Crypto, Tom St Denis +*/ + +#ifdef LTC_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 = calloc(1, sizeof(*p)); + if (p == NULL) { + return NULL; + } + if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != 0) { + free(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 */ + free(p); + } +} + +#endif +/* $Source: /cvs/libtom/libtomcrypt/src/pk/ecc/ltc_ecc_points.c,v $ */ +/* $Revision: 1.7 $ */ +/* $Date: 2007/05/12 14:32:35 $ */ + |