Since September 2023, the new S/MIME Baseline Requirements are in force worldwide. This required urgent adjustments to the IT portal, which could not yet be taken into account in this guide.

However, the basic procedure has not changed.

How to request and pick up a digital ID (certificate) for e-mail and WWW

With the IT portal you can obtain a globally recognized digital ID (certificate) directly from the Trusted Certificate Service (TCS) of the pan-European research network GÉANT.

For this purpose, the University of Münster must confirm to TCS that your identity has been sufficiently well controlled (in the sense of the certification guidelines for “TCS Personal” certificates). This is already the case for most professors, civil servants, employees and regular students, and also for all persons who have previously received a personal certificate from the CA of the University of Münster. They can proceed directly according to the following instructions.

All other members of the university or the arts academy (lecturers, assistants, second students, etc.) must visit a CA participant service staff member once and identify themselves and only then can they proceed according to the following instructions. The affected users will be notified of this in the IT portal.

Please click on the images to enlarge.

Please replace my user name “perske”, my email addresses, and my further datails with your own data.

Please log in to the IT portal:

For logging in, usually username and password are used. But if you already own a digital ID, you can use that:

After logging in to the IT portal important notes may appear. A note regarding missing two-factor security would be important but two-factor security is enabled automatically when requesting a digital ID.


Please do not just follow the click instructions in the illustrations!

But read thoroughly all the pages displayed by the IT portal!

Important notes are displayed for you!


Select the area „Digitale ID (Zertifikat)“ (“Digital ID (certificate)”):

There click on „Neue persönliche ID“ (“New personal ID”) (or for a group or functionary certificate on „Neue unpersönl. ID“ (“New nonpersonal ID”)) or in the correct line on „Beantragen“ (“Request”):

On the next page first regard the detailed notes. Then select what details are to be included into the certificate:

Possibly you do not want to include all email addresses connected to your personal identity. Then remove the corresponding check marks.

For members of the arts academy corresponding input fields are displayed.

Of course you can get a certificate only if you are willing to incur the corresponding liabilities.

Only if you have not yet activated two-factor security and only if you have not yet given a mobile phone number, you are asked for your mobile phone number. Different IT portal actions will send transaction numbers via SMS that you then have to type in (Mobile TAN).

(You will not need to type in a transaction number when you log in to the IT portal using your digital ID instead of your username and password. For this purpose, you should import your digital ID later not only in your email programs, but also in your WWW browsers.)

Only if you have not yet activated two-factor security a control number is sent via SMS to your mobile phone. You have to type in this number now.

On the next page you will download the digital ID as an PKCS#12 file. This file will be encrypted with a password for security. Please choose a good password and enter it twice.

Please make a note of this password and keep it very carefully!

You can also have the new digital ID imported directly into our webmailer perMail.

With a click on the button you then request your new digital ID.

Usually after only a few seconds your digital ID is ready and, if desired, also set up in the webmailer perMail.

The download of the digital ID should start automatically, but can be also be started manually.

Please save your digital ID carefully!

Once you leave the page, there is no possibility to download the digital ID again!

Most software requires your digital ID in the traditional format. There is also already software that requires the modern format. So please save your digital ID in both formats, then you can easily try both formats when importing into a software.

The further steps are specific to your WWWbrowser and your email programs.