• itsdavetho@lemm.ee
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    1 year ago

    Once quantum computers crack traditional cryptographic algorithms can’t quantum computers also be used to make new ones? Isn’t that what that summary pretty much implies?🤔

    • oozynozh@lemm.ee
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      1 year ago

      The question would be whether modern consumer computers will be capable of implementing post-quantum cryptographic algorithms. At the moment, I don’t believe many can.

    • redballooon@lemm.ee
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      1 year ago

      The problem is in theory not as big as it sounds. Quantum computing takes away one exponent. Meaning it reduces a complexity of 2^x to x.

      But it also reduces 2xy only to x^y.

      And we have cryptography that features that complexity, too.

      In practice, quantum computers still are a very tough challenge, because our 2^x algorithms are virtually everywhere, and going through that is a similar effort as was the y2k problem, only with much much much more code, because y2k was 23 years ago

  • Boozilla@lemm.ee
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    1 year ago

    I’m concerned about the arms race between code breakers and code makers in regards to the future of encryption. But I think I’m even more troubled about data from the past. Everything gets archived somewhere, and the old encrypted data that’s forever archived will be super easy pickings.