Cryptography is your friend: a hands-on workshop with OpenPGP

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Where: Foo Café, sign-up via

When: Wed 20 Nov 2019 at 17.45 (Malmö/Stockholm time)

Cryptography, or the art to exchange secret messages in the presence of third parties, can be both amazing and intimidating – on the one hand, it is omnipresent in the digital world and the cornerstone to many of our daily online activities. Without it, digital bank transfers, online privacy or e-commerce would be unthinkable. On the other hand, the mathematics involved and their implementation in software are challenging even for experts.

Understanding what cryptography means in practice, what it can do for you and how to use it, however, is surprisingly easy. In this workshop, we will walk through the basics of public-key cryptography and share encrypted messages with each other via OpenPGP, the free and open-source “Swiss Army knife of cryptography”. Other tools for secure communication and general strategies for your digital security will be discussed as well.

Bring your computer!

About the speaker:

Hanno is an experimental physicist, researcher and teacher at Lund University. His professional focus is on developing particle detectors and performing data analysis. He loves to discuss technology and its implications, to advocate free software and online privacy and to mention his cats.

Critical Tech is a meetup and hub for learning about digitalization and data-driven development. We gather to exchange knowledge, run workshops, and expand our networks across disciplines. With Critical Tech, we want to shed light on the importance of a responsible and ethical data-driven society, and to practice a literate and critical voice which can positively influence the current engine of change.


17:45- 18:00: Meet & Greet 18:00 - 18:40 Intro to Cryptography 18:40 – 19:00 Pizza and mingle 19:00 – 20:00 Workshop

Oh - and don’t forget to sign up at Foo café as well! You’ll find the event at: