Event

<p>Even Signal took years to get it right, and Matrix is not quite there yet: Implementing a multi-device chat system that supports not only reliable encryption, but also reliable deletion of messages also known as "Forward Secrecy". </p> <p>In this talk we'll present a new "Autocrypt 2 certificate" specification draft, that originated from the <a href="https://chatmail.at">chatmail</a> community and its supporters. The draft is built upon <a href="https://www.rfc-editor.org/rfc/rfc9580.html">the modern RFC9850 OpenPGP standard</a> and aims to to supports encryption that is safe against attackers that collect all in-transit traffic and then </p> <ul> <li> <p>try to use a prospective future Quantum computer to decrypt all collected messages, or </p> </li> <li> <p>try to recover deleted messages after they get hold of a device/private key. </p> </li> </ul> <p>The draft Autocrypt2 certificate specification is designed to be usable by any Internet Messaging system and is intended for submission to IETF early 2026.</p>