Certificate Revocation

A subscriber's certificate must be revoked in one of the following cases :

  • The certificate is no longer used.
  • The details of the certificate have changed. For example the subscriber's e-mail address, the subscriber's relationship with the Aristotle University of Thessaloniki PKI, etc.
  • The private key has been exposed or there is suspicion that the private key has been exposed.
  • The private key has been lost or there is suspicion that the private key has been lost.

After a certificate has been revoked, the certificate is no longer valid. The subscriber must apply for a new certificate.

User Certificate Revocation

Subscribers must apply for the revocation of a certificate using the appropriate secure web page.

Server Certificate Revocation

The appointed server administrator must apply for the revocation of a server certificate using the appropriate secure web page.

Certificate Revocation by a Trusted Third Party which is a holder of the certificate's private key

In order to initiate the certificate revocation by a Trusted Third Party which is a holder of the certificate's private key, send your request by e-mail to . Please attach a digitally signed text that declares that the secret key of the particular certificate is exposed.