Submission + - Signal braces for quantum age with SPQR encryption upgrade (nerds.xyz)
The company worked with researchers and used formal verification tools to prove the new protocolâ(TM)s security. Signal says the upgrade preserves its guarantees of forward secrecy and post compromise security while adding protection against harvest now, decrypt later attacks. The move raises a bigger question: will this be enough when large scale quantum computers arrive, or will secure messaging need to evolve yet again?