/* Read x bit and then reset it */
negative = bignum_bit(point->y, point->curve->fieldBits - 1);
bignum_set_bit(point->y, point->curve->fieldBits - 1, 0);
+ bn_restore_invariant(point->y);
/* Get the x from the y */
point->x = ecp_edx(point->curve, point->y);
/* Curve name is duplicated for Weierstrass form */
if (curve->type == EC_WEIERSTRASS) {
getstring(&data, &len, &p, &slen);
+ if (!p) return NULL;
if (!match_ssh_id(slen, p, curve->name)) return NULL;
}
ec->publicKey.x = NULL;
ec->publicKey.y = NULL;
ec->publicKey.z = NULL;
+ ec->privateKey = NULL;
if (!getmppoint(&data, &len, &ec->publicKey)) {
ecdsa_freekey(ec);
return NULL;
}
- ec->privateKey = NULL;
if (!ec->publicKey.x || !ec->publicKey.y ||
bignum_cmp(ec->publicKey.x, curve->p) >= 0 ||