def __set_to_coordinates(self, x_val, y_val):
try:
point = OpenSSL.EC_POINT_new(self.os_group)
x, y = ec_bignum.BigNum(decval=x_val), ec_bignum.BigNum(
decval=y_val)
if self.curve.field_type == 'prime':
OpenSSL.EC_POINT_set_affine_coordinates_GFp(
self.os_group, point, x.bn, y.bn, None)
elif self.curve.field_type == 'characteristic-two':
OpenSSL.EC_POINT_set_affine_coordinates_GF2m(
self.os_group, point, x.bn, y.bn, None)
self.x, self.y = x_val, y_val
self.os_point = point
finally:
del x, y
