3 ms·

For a layman, does this solve the end-to-end encrypted group chat problem?

• rhencke 6y ago
  > Establishing keys to provide such protections is challenging for group chat settings, in which more than two clients need to agree on a key but may not be online at the same time. In this document, we specify a key establishment protocol that provides efficient asynchronous group key establishment with forward secrecy and post-compromise security for groups in size ranging from two to thousands.
• sylvain_kerkour 6y ago
  It solves the scalability issues of current generation key distribution algorithms. In my opinion the best article about it is: https://blog.trailofbits.com/2019/08/06/better-encrypted-group-chat https://blog.trailofbits.com/2019/08/06/better-encrypted-gro...
• wdb 6y ago
  You would think this problem is already solved as it’s a similar problem when navy ships from different countries need to communicate then they need to communicate keys too and ships can be added or removed from the group. For example, Joining a (n,n)-signature schema without a trusted third party.
  • baby 6y ago
    Now increase that by orders of magnitude and you need a new protocol due to efficiency reasons. Things don’t always scale well.
• xbar 6y ago
  It also solves the post-compromise eavesdropping problem.