Comment on World's smallest particle accelerator is 54 million times smaller than the Large Hadron Collider, and it works

• Nomad@infosec.pub ⁨1⁩ ⁨year⁩ ago

  Proovably secure PRNGs are as secure as TRNGs. All you need is enough entropy and that you can get from plenty of sources.

  A single chip you rely on for entropy is a problem as you cant look inside. Therefore you cant trust it fully.

  source

  • KairuByte@lemmy.dbzer0.com ⁨1⁩ ⁨year⁩ ago

    While they may be as secure, I would not call that the same level of random. I’ll agree they are equal in almost every use case, but truly random is still “more random” in comparison.

    Though I’ll concede that if it can’t be proven to be truly random, it’s not of much use.

    source

    • FooBarrington@lemmy.world ⁨1⁩ ⁨year⁩ ago

      How do you measure the amount of “true randomness”? CSPRNGs can use very little entropy to generate large amounts of random data. Mathematically speaking there isn’t any difference between that and what you call “true randomness” - if there was, they wouldn’t be CSPRNGs.

      source

      • KairuByte@lemmy.dbzer0.com ⁨1⁩ ⁨year⁩ ago

        Truly random would be something that is impossible to reproduce. While you are correct that we can approximate randomness, the final calculation can always be replicated if the initial inputs are known. Just because something is exceedingly difficult to replicate, doesn’t mean it is truly random.

        Think of it like cleaning your pool. You have a vacuum, chemicals, the system circulates, maybe a skimmer or a net. You can get the pool to the point that it is acceptable to swim in, but you’re never actually swimming in a clean pool. In a similar manner, current random number generators get you to a point that you are (usually) fine assuming the number is random, but it never really is.

        source

        • -> View More Comments
    • Nomad@infosec.pub ⁨1⁩ ⁨year⁩ ago

      Agreed.

      source
• hansl@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Honestly you won’t be able to build a device with this thing in it for cheaper than alternatives. For home usage it’s about 50-100$. And a good enough PCI card like Quantis will be 3000$ with a bandwidth of 240Mbps.

  And that’s not even discussing bandwidth. In most cases bandwidth (number of random bits generated per second) is the limiting factor in usage. You want them to be fast enough that when you need a number you’re not waiting for it.

  source

  • John_Hasler@lemmy.one ⁨1⁩ ⁨year⁩ ago

    Yes. It isn’t hard to generate random numbers in hardware. It is hard to generate them very fast. This device would not help solve that problem.

    source