What is it?

The T-CAT pseudonym is a qualified signature certificate for a public employee with a pseudonym from the AOC Consortium Certificate Catalogue , specific for cases where the holder's data cannot be displayed.

There are two types of pseudonym certificate:

  • T-CAT of pseudonym (high level certificate on card)
  • T-CAT Pseudonym P (Certificate of Advanced Level in Software)

Personal and identification data ( name, surname, DNI ) do not appear in the certificate, as they are replaced by the pseudonym indicated, for this reason it does not allow authentication in applications (such as EACAT, Portasignatures or other AOC or State tools).

Therefore, the potential holders of the T-CAT pseudonym are people who, within their organization, already have a regulated pseudonym: prison officials, Mossos d'Esquadra, etc.

When can a pseudonym be used?

The identity of the person acting must be protected when there are reasons for:

  • Public safety
  • Classified information
  • National defense
  • Other actions where the use of a pseudonym is legally justified to protect the person's identity.

Furthermore, the AOC only reveals the identity of the person when required by judicial bodies and other public authorities in the exercise of their assigned functions.

NOTE : the legal regime of classified information is regulated by Law 9/1968, of April 5, on official secrets and Decree 242/1969, of February 20, which develops it.

What should a pseudonym be like?

The pseudonym is always provided by the Administration , as stipulated.

It can be:

  • Professional Identification Number (NIP), only when the NIP is not related to personal data, such as the DNI.
  • Alternatively, other indicators.

How can I request the T-CAT pseudonym?

You can request the T-CAT pseudonym via EACAT through the form available to you in the procedures section of EACAT > AOC Consortium > Digital Certification Service.

Specifically the option “ T-CAT: Request and renewal of pseudonym or representative certificates

Note: In this section you will also find requests for other certificates from the AOC Digital Certificate Catalog.

Then, download the pdf and fill in the information indicated in the application. Once you have filled in all the information, sign the request and send it.

You must keep in mind that the form allows you to make multiple requests at the same time by clicking on the (+) option.

Regarding the information in the application, it is recommended that the organic unit to which the person holding the certificate belongs be indicated , as this facilitates the justification of the need to use the pseudonym.

What requirements must the application for T-CAT pseudonym meet?

  • Justification of the request : indicate the reason why you are requesting the certificate with a pseudonym
    • Use for public safety
    • Use for classified information
    • Use for defense
    • Other actions in which anonymity is legally justified. Indicate in this case, the precept and the legal norm. For example, art. 45.4 of Law 12/2007, of October 11, on social services.
  • Indication of the employee's pseudonym: according to section 3. What should a pseudonym be like?
  • Provide an email address : all certificates in the AOC Digital Certificate Catalog include an email address (required information). In the case of the T-CAT pseudonym, and in order not to contravene the purpose of the certificate itself, it is recommended that the email address you provide avoid using combinations of the person's first and last name ; it can be configured based on the workplace and/or the NIP (example: agentT1111@policialocal.cat).
  • Provide documentation that proves the identity of the signatory.
  • Where applicable, provide the previous report from the competent cross-cutting body in matters of promoting the digital administration of the Generalitat of Catalonia (provided for in art. 53.3 of Decree 76/2020, of August 4, on digital administration).

We also attach the report with the references of these requirements to the regulations .

When will the pseudonymous T-CAT be issued?

When we receive your request, the AOC will issue these certificates after assessing the legal accreditation of the pseudonym you indicated in the application .

The delivery period for the pseudonymous T-CAT is:

  • Ordinary service : maximum 20 working days
  • Urgent service : 4 working days, limited to 5 requests per entity per week. In addition, urgency only applies to renewals or in the event of loss, theft, etc.

After issuance, AOC will charge the corresponding amount, in accordance with the current public prices for the Digital Certification Service .

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