My special interests in the world of free software are digital certificates (for free !) and cryptographic tools which help to secure my and probably your personal identity.
I live in Leipzig/Saxonia and participate in our monthly meeting on the last Tuesday at about 18:00 UTC. We always meet at Lutherburg, Wittenberger Str. 26, 04129 Leipzig.
You can read about our activities on gaos.org.
Perhaps we meet during FOSDEM 2017 in Brussels? Do you attend my talk?
I give an overview of some internals of our Trusted Service Provider.
I am a cofounder of World Privacy and Identity Association WPIA.
Email: <ReinhardM AT SPAMFREE fsfe DOT org> Please get my public key here.