Certificates

Root certificate TechFak

You can use this certificate if you want to connect to the wired network or to the WiFi (citec or eduroam). In almost all cases you can use the DER format. Some internal services also use this CA.

We exchange the handware inside the citec building and had to roll out a new root certificate with the current standard. The new certificate can be downloaded here.

validity

19th September 2025, 05:31:05 GMT until
17th September 2035, 05:31:05 GMT

Formate

Binary format (DER format) for applications:

techfak_root_ca.crt

techfak_root_ca.der
certificate in ASCII-encoded form (PEM format):

techfak_root_ca.pem

Fingerprints

SHA1: F2 04 53 50 D0 26 8B 22 67 6B A5 9F 25 E0 49 77 09 2F 93 73
MD5: 65 D9 90 54 97 8C C2 E9 11 42 B0 DE 36 D7 8E A6

new certificat of radius server

Our radius for Eduoram authentication has also been updated. When connecting for the first time, the new fingerprint is displayed depending on the operating system and must be confirmed once. This is now:

30:5d:95:aa:33:8b:bb:26:52:9c:04:34:c4:50:d0:6c:2c:56:9a:6e:42:ba:f6:a8:77:74

old root certificate CITEC

You can still use this certificate if you want to use the wired laptop network. In almost all cases you can use the DER format. The certificate in text or PEM format may not be correctly recognized as an x509 certificate by the operating system.

validity

Wednesday, July 4, 2012, 12:40:40 CEST until
Tuesday, June 29, 2032, 12:40:40 CEST

Formate

Binary format (DER format) for import into applications (web browsers, email programs, etc.); MIME type: application/x-x509-ca-cert:

citec-root-ca.crt

citec-root-ca.der
The certificate in readable form:

citec-root-ca.txt
The certificate in ASCII-encoded form:

citec-root-ca.pem

Fingerprint

SHA1-Fingerprint: 91:91:1A:0E:98:73:B6:FA:3E:71:AB:B6:04:FA:30:CE:B9:48:67:74
MD5-Fingerprint: 5C:66:E1:68:88:1D:04:FF:3E:80:B7:64:00:D1:14:0B