Important notice

In the current situation we are reducing personal contacts.

For server certificates, please see our updated information.

For personal certificates (esp. “renewals”), as well as for group, functionary, software developer, and smart card logon certificates, applies: They can be issued without a new personal identification if

  • the requester has a still valid personal certificate issued by the WWUCA and

  • the requester's last identification occurred within the last 39 months.

In this case, you should submit a new request as normal, but then not hand in the downloaded PDF certificate request file in person, but send the file via digitally signed e-mail to Please do not send us requests by letter!

For persons working in the institutes and other facilities of the WWU: If the conditions are not met, then you can first request a personal certificate as normal and identify yourself by video identification. For details please contact J. Bowinkelmann (only WWU School of Business and Economics), J. Kortmann (only UKM), P. Neuhaus (only WWU Medical Faculty), or R. Perske (other WWU and Academy Of Fine Arts).

Personal visits to the participant service staff members are again possible by prior arrangement and in compliance with the Corona rules.

Certification Authority of the University of Münster (WWUCA)

The WWUCA supplies members and organizational units of the Westfälische Wilhelms-Universität Münster, the Academy Of Fine Arts Münster, and – with restrictions – the Münster University Hospital with cryptographic certificates.

These certificates are a core component of digital IDs that can be used by people, groups and servers to identify themselves.

Main use area of the issued certificates is the protection of communication in the internet: Electronic signing and encrypting of e-mails, identity check of persons as well as servers, authenticity check of software, and much more.

The WWUCA operates in the context of the Public Key Infrastructure (PKI) of the German Research Network Association (DFN-Verein) in support of science, research, and teaching.

What can the WWUCA do for you?

Regardless of whether you want to start with a fresh key pair or you have already prepared a certification request: Using the central certification server of the DFN PKI, accessible via the short address, requesting your new X.509 certificate takes only few mouse clicks.

Server certificates

Such certificates are used to identify themselves mainly by WWW servers with addresses starting with https:// in place of http://, but also by e-mail servers and other servers to which you can establish an encrypted connection secured with Transport Level Security (TLS, formerly SSL).

Person certificates

Such certificates are issued to natural persons and used mainly for electronic signing and encrypting e-mails with S/MIME, but also to identify oneself to WWW applications, to computers, to other access control systems, and much more. All modern e-mail programs support S/MIME.

Group certificates

Such certificates do not belong to a natural person but to a certain group of persons and are often used for e-mail addresses of institutes and similar purposes.

Functionary certificates

Such certificates belong to a natural person in performance of his duties as an official or functionary, e. g. to a dean, and are passed to the successor when leaving.

Software developer certificates

Such certificates are person or group certificates used not for e-mails or electronic identification but for electronical signing of software, to allow for an automatic authenticity check when installing the software.

Smartcard logon certificates

Such certificates are person certificates used not for e-mails but on a smartcard or a cryptotoken as an electronic identification for logging on to a computer.

Of course we advise you on all questions regarding the use of cryptography and certificates.

Certificates are issued according to the X.509 standard. Electronic signatures created with them are “advanced electronic signatures“ as per eIDAS regulation of the European Union.