📄✨ New paper! Emilie Ma (
kewbi.sh) and I looked at the problem of users of end-to-end encrypted apps recovering their private keys if their device is lost, broken, or stolen. We found a cryptographic approach that is decentralised and resilient against social engineering
arxiv.org/abs/2507.21122
Kintsugi: Decentralized E2EE Key Recovery
Kintsugi is a protocol for key recovery, allowing a user to regain access to end-to-end encrypted data after they have lost their device, but still have their (potentially low-entropy) password. Exist...