If you have questions or suggestions regarding this website or want to contact me for other reasons, you can reach me at the following email address:



My public OpenPGP key is available from this site. I currently use the key 26AAAAAA; see also the key transition statement.

The key is integrated in the web of trust. You can search for trust paths from your key to mine:

Your key-ID:

The key is also signed by the c’t Certification Agency – so if you have a c’t around (a german magazine for computer engineering), you do not have to bother to retrieve the fingerprint of my key in a trustworthy way (i.e. from me in person) as the fingerprint of the public key of the c’t-CA is printed in every issue.

Postal Address

Šumavská 1096/11
120 00 Praha 2 - Vinohrady