def _generate_oid_config(self, oid_name, min_str, max_str):
min_attr = Attribute.init(num_bits=32, string=min_str)
max_attr = Attribute.init(num_bits=32, string=max_str)
oid_str = "%.8X%.8X" % (min_attr.value, max_attr.value)
oid_cfg = "\n%s=DER:%s:%s:%s:%s:%s:%s:%s:%s" % \
(Certificate.GetOIDByName(oid_name), oid_str[0:2], oid_str[2:4], oid_str[4:6], oid_str[6:8], \
oid_str[8:10], oid_str[10:12], oid_str[12:14], oid_str[14:16])
return oid_cfg
