Notice

For a longer transition period, we (WWU IT + WWUCA + DFN-PKI) offer worldwide recognized digital IDs (certificates) from two different providers.

  • The already longer offered digital IDs with “Global” certificates are based on the “T-TeleSec GlobalRoot Class 2” root certificate from T-Systems Enterprise Services GmbH.
    This offer is expected to expire at the end of 2022 for server certificates and at the end of 2023 for other certificates.

  • The now also offered digital IDs with “TCS” certificates from the Trusted Certificate Service (TCS) of the pan-European research network GÉANT are based on the root certificates of Sectigo.

The digital IDs „TCS“ have three advantages: For many users, no new ID checks are necessary, there is no paperwork, and digital IDs from servers can be automatically renewed via ACME.

Search and retrieve certificates

The following notes apply to person, group, functionary, and software developer certificates.

For server certificates, please refer to our detailed guides.

What kind of certificate do you want to retrieve?

Certificate of someone else

If you want to write an encrypted email to someone or need a foreign certificate for other reasons, please note our detailed guide.

Own digital ID with “TCS” certificate

Your ready assembled digital ID will be offered to you for download directly after submitting the request.

Please follow our guide.

Your digital ID is not stored by the WWU IT portal, so it cannot be downloaded again later.

Own digital ID with “Global” certificate

If you have requested your certificate with the WWU IT portal:

  • As soon as you are informed about it by email, you will be offered to download the ready assembled digital ID in the WWU IT portal.

    Please follow our guide.

    Your digital ID will be kept permanently by the WWU IT portal, so it can be downloaded again later. However, you have the option to delete the digital ID from the WWU IT portal.

If you have requested your certificate using a WWW browser:

  • As soon as you are informed about it by email, you can assemble and download your digital ID on the application pages. To do this, you will need the JSON file that you saved when you submitted your application.

    Please follow our guides.

    You could also download your digital ID again later, but you will always need this JSON file because it contains your private key. It's better to destroy the JSON file after successfully downloading the digital ID and keep the digital ID itself safe instead.