Identification trough Digital Certificate:

• Digital certificate: as a general rule, it is accepted DNIe (Spanish e-ID) and all recognised certificates included in the Trusted List of certification service providers established in Spain published on the electronic office of the Spanish Ministry of Industry, Energy and Tourism.
• Concerted keys: Cl@ve PIN Password system with a very limited validity in time, oriented to users who sporadically access electronic public services. Permanent Cl@ve A password system with long-lasting validity, aimed at regular users of electronic public services.
• Digital certificate issued by a recognised certification authority on the @firma platform of the Spanish Ministry of the Presidency. This platform supports digital certificates recognised according to the ITU-T X.509 v3 standard, issued by multiple certification service providers.