Proton's crypto is not Transparent and not OPAQUE
Proton says privacy "isn't a promise, it's mathematically ensured." I found new ways they could read your data anyway.
Pascal Schärli
Hi, I'm Pascal. A cyber security master's graduate from ETH Zürich, now a dedicated Cryptography Engineer with a strong passion for coding and scripting.
Latest posts
Quantum Apocalypse?
NIST finalized their first post quantum secure cryptographic algorithms in August 2024. This post provides a gentle introduction and an intuition on the actual impact.
Breaking Military Grade Encryption to Animate my Name
Getting into the weeds of my flashy website banner, that simulates a padding-oracle attack on AES-CBC.
Sharekey Cryptography Review
During my master thesis I reviewed the cryptography of the end-to-end encrypted Sharekey collaboration app. This post covers the most interesting issues I found.
ETH Study Materials
A collection of study material I created back when I was tutoring Computer Science at ETH Zürich