Method: OpenSSL::PKey::EC::Point#initialize

Defined in:

ossl_pkey_ec.c

#OpenSSL::PKey::EC::Point.new(point) ⇒ Object #OpenSSL::PKey::EC::Point.new(group[, encoded_point]) ⇒ Object

Creates a new instance of OpenSSL::PKey::EC::Point. If the only argument is an instance of EC::Point, a copy is returned. Otherwise, creates a point that belongs to group.

encoded_point is the octet string representation of the point. This must be either a String or an OpenSSL::BN.

# File 'ossl_pkey_ec.c', line 1212

static VALUE ossl_ec_point_initialize(int argc, VALUE *argv, VALUE self)
{
    EC_POINT *point;
    VALUE group_v, arg2;
    const EC_GROUP *group;

    TypedData_Get_Struct(self, EC_POINT, &ossl_ec_point_type, point);
    if (point)
	rb_raise(eEC_POINT, "EC_POINT already initialized");

    rb_scan_args(argc, argv, "11", &group_v, &arg2);
    if (rb_obj_is_kind_of(group_v, cEC_POINT)) {
	if (argc != 1)
	    rb_raise(rb_eArgError, "invalid second argument");
	return ossl_ec_point_initialize_copy(self, group_v);
    }

    GetECGroup(group_v, group);
    if (argc == 1) {
	point = EC_POINT_new(group);
	if (!point)
	    ossl_raise(eEC_POINT, "EC_POINT_new");
    }
    else {
	if (rb_obj_is_kind_of(arg2, cBN)) {
	    point = EC_POINT_bn2point(group, GetBNPtr(arg2), NULL, ossl_bn_ctx);
	    if (!point)
		ossl_raise(eEC_POINT, "EC_POINT_bn2point");
	}
	else {
	    StringValue(arg2);
	    point = EC_POINT_new(group);
	    if (!point)
		ossl_raise(eEC_POINT, "EC_POINT_new");
	    if (!EC_POINT_oct2point(group, point,
				    (unsigned char *)RSTRING_PTR(arg2),
				    RSTRING_LEN(arg2), ossl_bn_ctx)) {
		EC_POINT_free(point);
		ossl_raise(eEC_POINT, "EC_POINT_oct2point");
	    }
	}
    }

    RTYPEDDATA_DATA(self) = point;
    rb_ivar_set(self, id_i_group, group_v);

    return self;
}