The current state of full disk encryption is still not good (2025) (gpn23)

Chaos Computer Club - recent events feed (high quality)

In theory, full disk encryption (FDE) just works. You just have to enable it. But in practice, cops get access to a lot of devices, even when they are encrypted. I want to summarize the current state of full disk encryption. I will explain conceptional weaknesses/attacks, practical physical attacks (videos of live demos) and give recommendations. I will explain how TPMs work and how you can use them to increase (but also break) the security of your device. The focus is on Linux and TPMs. I will briefly talk about the broken state of Smartphone Security and Window's FDE Bitlocker. There is also Linux hands-on. ##### AGENDA - Motivation & Threat Model - Smartphone Security - History of cold boot attacks - Full disk encryption on Linux - TPM 2.0 (How does it work? How can I use it? Attacks, benefits and problems) - Windows FDE (is currently broken) - How I do FDE on Linux Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn23/talk/FJMWAE/