Why Apple added protection against quantum computing when quantum computing doesn’t even exist yet
Summary: Apple released an update for nearly all its devices adding PQ3, a quantum-resistant end-to-end encryption for iMessages, which Apple called the most significant cryptographic security upgrade in iMessage history. Signal launched its own quantum-resistant encryption, PQXDH, in September, while quantum computers do not yet exist and private companies and governments continue pouring billions into developing them.
What's compelling: Every service relying on public key infrastructure such as SSL and TLS will eventually need quantum-resistant algorithms, and the IPv4-to-IPv6 transition shows how slowly that kind of change moves across infrastructure that cannot push overnight updates the way Apple and Signal can.
Read the original at Cisco Talos ↗
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