Holger Krekel
Holger is a long-time FOSS contributor. He is co-creator of the python testing tool "pytest", the PyPy project, and since about 10 years engaged in decentralized messaging research and development.
He is one of the co-creators of the Autocrypt and SecureJoin protocols, as well as one of the maintainers of the "Chatmail" project which explores new and more secure ways to run secure e-mail server networking.
Sessions
Over the years, Delta Chat has matured to be an easy-to-use, secure,
and even fast decentralized FOSS messenger app for all platforms.
In this talk we discuss two key security architectures:
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Autocrypt and SecureJoin key distribution protocols for achieving
automatic end-to-end encrypted messaging safe against MITM attacks, and -
the open-signup Chatmail server network which successfully uses strict
cryptographic interoperability contraints (DKIM, OpenPGP, TLS)
instead of IP-reputation and spam classification methods.
We also highlight the six independent security audits and analysis conducted so far.
The Delta Chat decentralized instant messaging project has over the years evolved a rich ecosystem of distinct project areas, from instant onboarding with a versatile cross-platform messenger, over using chat-shared web apps with integrated Peer-to-Peer realtime messaging to participating with own Chatmail servers in the world-wide e-mail server network.
First, we onboard all participants on different Chatmail servers and get into a joint chat group and play around with the many features, answer and discuss questions and maybe play some games.
Second, we offer participants hands-on sessions:
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setting up a chatmail server
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writing a webxdc app
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writing a chat bot