Want to create an interactive transcript for this episode?
Podcast: Chaos Computer Club - recent events feed
Episode: Why do I have 2 passwords? How to talk about encryption in Matrix (matrix-conf-2025)
Description: Most modern software applications give total trust to the service provider. End-to-end encrypted (E2EE) services are different: the service provider is a gateway, and the real trust is with other people.
This is unfamiliar, and can make using E2EE confusing. When you add in federation (meaning lots of different service providers) and a diverse set of client apps, trying to make Matrix's encryption understandable is tricky.
It would help to have a shared set of words and definitions. In this talk I describe MSC4161, which attempts to establish a shared vocabulary, and then my own thoughts about some...