SosoOct 2

Signal shows once again why they're so important and the leaders in End-to-end encrypted messaging.

https://signal.org/blog/spqr/

#Signal #iMessage #PostQuatum

Signal Protocol and Post-Quantum Ratchets

We are excited to announce a significant advancement in the security of the Signal Protocol: the introduction of the Sparse Post Quantum Ratchet (SPQR). This new ratchet enhances the Signal Protocol’s resilience against future quantum computing threats while maintaining our existing security guar...

Signal Messenger
stfAug 2, 2023

new paper adding to the #postquatum #OPRF literature: https://eprint.iacr.org/2023/1176

they use garbled circuits with some pq prf, to achieve better results than the rest of these attempts, and aim for #universal #composability, but still are quite far from the half-pq (2)hashDH construction. #crypto

Composable Oblivious Pseudo-Random Functions via Garbled Circuits