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quantum safe

Signal braces for quantum age with SPQR encryption upgrade

October 3, 2025 by Brian Fagioli

Signal has introduced SPQR, a new quantum safe ratchet that strengthens its Triple Ratchet protocol and protects private messages from future quantum attacks.

Categories Quantum Computing Tags cryptography, end to end encryption, post quantum encryption, PQXDH, quantum safe, secure messaging, Signal, Signal Protocol, SPQR, Triple Ratchet

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