The Bauhaus-Universität Weimar is a member of the DFN-PKI – the “Public Key Infrastructure in the German Research Network” and operates its own registration office at the SCC.
At present, the office can issue SSL server certificates (for global and grid security levels).User certificates can only be issued on a case-by-case basis.

Instructions for requesting SSL server certificates

Procedure for requesting grid certificates (users and servers)

Web interface – root certificates, blocking list, certification policy

To ensure that connected clients can verify the server certificates, you first have to implement the root certificate into your browser/e-mail programme. This is generally done automatically when using the root certificate of the Deutsche Telekom Root CA 2 in the DFN-PKI. Otherwise you will have to import the root certificate into your browser manually. You can do this via the web interface of our registration office. The root certificate provided on the interface can be temporarily accepted until the root certificates are successfully imported.

On the web interface you will also find the certificate blocking list which you should install into your browser/e-mail client. Click on “Install blocking list” (“Sperrliste installieren”) so that invalid certificates are no longer accepted. You can also find additional information on the interface, such as the certification policy.

Questions and answers regarding DFN-PKI

Installation of the Deutsche Telekom root CA certificate in Linux server systems

Debian (similar like Ubuntu)


Contact Data Registration office

Klaus Mebus
Servicezentrum für Computersysteme und -kommunikation
Steubenstraße 6a
D-99421 Weimar
e-mail: pki[at]
phone: 0 36 43 / 58 24 25

To top