Apply for or renew user certificate

Certificates for BTU users are now being issued by Harica/GÉANT. This change brings several advantages. The biggest advantage is that certificates can now be easily and conveniently applied for, renewed or withdrawn online. For this purpose, a new website has been launched, which can also be accessed via the BTU account web portal (https://www.b-tu.de/account/).

For security reasons, the certificate management website can only be accessed from the campus network and not from the VPN.

Your certificate will be added to the BTU directory services. The privacy policy of BTU Cottbus-Senftenberg applies. In addition, you agree to Harica's ‘Subscriber Agreement and Terms of Use’.

Instructions for setting up your user certificate can be found on the following page: Instructions

To the CA website: Request/renew/block user certificates

To the account website: BTU account

Name	Purpose	Lifetime	Type	Provider
_pk_id	Used to store a few details about the user such as the unique visitor ID.	13 months	HTML	Matomo
_pk_ref	Used to store the attribution information, the referrer initially used to visit the website.	6 months	HTML	Matomo
_pk_ses	Short lived cookie used to temporarily store data for the visit.	30 minutes	HTML	Matomo