Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.| Signal Messenger
We are introducing PQ3, a groundbreaking cryptographic protocol for iMessage that advances the state of the art of end-to-end secure messaging. With compromise-resilient encryption and extensive defenses against even highly sophisticated quantum attacks, PQ3 provides protocol protections that surpass those in all other widely deployed messaging apps.| Blog - iMessage with PQ3: The new state of the art in quantum-secure messagin...
A comprehensive, machine-checked, post-quantum security proof of the Signal PQXDH protocol.| cryspen.com