nit: Open Whisper Systems (who built WhisperCore, an encryption layer; WhisperMonitor, a firewall; TextSecure, a messenger; and RedPhone, a voice call service) exited to Twitter back in the day [1]. Signal is apparently marketed and developed by Signal Messenger LLC [2].
Signal seems to use Kyber-1024, which does meet the NIST contest's security criteria.
I wrote some more details here: https://community.signalusers.org/t/signal-blog-quantum-resi...
Who is Signal Sciences?
Actually, I meant Open Whisper, the company behind Signal.
Got my wires crossed.
nit: Open Whisper Systems (who built WhisperCore, an encryption layer; WhisperMonitor, a firewall; TextSecure, a messenger; and RedPhone, a voice call service) exited to Twitter back in the day [1]. Signal is apparently marketed and developed by Signal Messenger LLC [2].
[0] https://archive.is/ZI7G1