X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=libtomcrypt%2Fsrc%2Fpk%2Fecc%2Fltc_ecc_points.c;fp=libtomcrypt%2Fsrc%2Fpk%2Fecc%2Fltc_ecc_points.c;h=a63bdb50728db329017871100d6e6786d076bdb6;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage diff --git a/libtomcrypt/src/pk/ecc/ltc_ecc_points.c b/libtomcrypt/src/pk/ecc/ltc_ecc_points.c new file mode 100644 index 0000000..a63bdb5 --- /dev/null +++ b/libtomcrypt/src/pk/ecc/ltc_ecc_points.c @@ -0,0 +1,58 @@ +/* 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. + */ + +/* 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 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 = 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 +/* ref: $Format:%D$ */ +/* git commit: $Format:%H$ */ +/* commit time: $Format:%ai$ */ +