Please use the CERN Grid Certification Authority to get a new certificate for Grid usage.

The CERN Trusted Certification Authority is no longer the official CERN Certification Authority. The CERN Grid Certification Authority should be used instead to get a new Grid certificate.

The CERN Trusted Certification Authority will keep issuing certificates until 1 June 2014, but should be used only by users that explicitly need a SHA-1 certificate for compatibility reasons with some Grid software that is not yet compatible with SHA-2 certificates.

Please note that the validity of new certificates issued by this Certification authority is limited to 6 months (instead of one year).