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As of 1 July 2015 the X.509 certificate issuing service will be offered exclusively from the Digicert platform. The existing certificate service will be available only for the revocation of existing certificates.

The Network Operation Center of TEI of Athens with the collaboration of GRNET signs through TCS of Terena a) X.509 certificates for servers who are under the teiath.gr domain and b) Personal user certificates, without any charge.


The Personal user certification service is available to all users who have a user account at TEI of Athens NOC, but the certificates for servers service is available only to teaching and administrative staff. The required for the certificates for servers service applications are approved after the Beneficiaries submit themselves an application in written form to the Network Operations Center offices (polygonal building).

Instructions for the creation, installation and usage of the Personal user certifications are available on the users manual page of the Network Operation Center website.

Revoke a Personal Digital Certificate