As a reminder, current estimates are that quantum cracking of a single 2048-bit RSA key would require a computer with 20 million qubits running in superposition for about eight hours. For context, quantum computers maxed out at 433 qubits in 2022 and 1,000 qubits last year. (A qubit is a basic unit of quantum computing, analogous to the binary bit in classical computing. Comparisons between qubits in true quantum systems and quantum annealers aren’t uniform.) So even when quantum computing matures sufficiently to break vulnerable algorithms, it could take decades or longer before the majority of keys are cracked.

The upshot of this latest episode is that while quantum computing will almost undoubtedly topple many of the most widely used forms of encryption used today, that calamitous event won’t happen anytime soon. It’s important that industries and researchers move swiftly to devise quantum-resistant algorithms and implement them widely. At the same time, people should take steps not to get steamrolled by the PQC hype train.

  • @T156
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    520 days ago

    Not to mention we already have quantum-computer-resistant cryptography.

    • @BreadstickNinja
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      1120 days ago

      I just lie in every encrypted message I send so even when they crack it they won’t know the truth

      • @Evotech
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        20 days ago

        There’s an idea for a crypto. You send a message, another message (or 100000) gets created by ai I guess, and based on some predetermined hash the retriever must calculate which is correct, the lie/other message is discarded.

        I’ll call it Never tell a lie, or NTL