In addition to the popular electronic signature certification system, the FNMT-RCM offers, through CERES, different certification services. Mindful of the end company that is going to be certified, or of the object of the certification, it will issue user identification certificates for either corporate or private use, system component certificates, or digital signature certificates. Apart from the typical services of a certifying body, the FNMT-RCM also offers, through CERES, advanced trusted third party services such as time stamping, non-rejection, certification and message archiving services.