Slowly putting some things I’ve been working on to paper.
Here’s my first post, “Triangle of Forgetting,” an impossibility result for secure group messaging:
Monotone convergence, temporal secrecy, and dynamic membership cannot be guaranteed at once.
weboftru.st/post/triangl...
weboftru.st
Triangle of Forgetting
No protocol can guarantee monotone merge, temporal secrecy, and dynamic membership at once. The triangle of forgetting appears when a distributed system cannot tell whether a late update has expired o...
