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True Random Number Generator Goes Online

amigoro writes "A 'true' random number generator that relies on the unpredictable quantum process of photon emission has gone online providing academic and scientific community access to true random numbers free of charge."

8 of 439 comments (clear)

  1. lava lamps at SGI by TheGratefulNet · · Score: 5, Interesting

    when I think of random numbers, I can't help but remember the 'fishbowl' that had at SGI (mtn view) where an indycam was photo'ing some lavalamps and creating random seeds based on those images.

    ah, SGI....

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  2. Re:Don't misunderstand by TheRaven64 · · Score: 4, Interesting

    Don't Via C3 chips have a hardware random number generator, that uses quantum-level fluctuations in the chip (i.e. the kind of noise that most of the rest of the chip is specifically designed to try to avoid) to produce noise as output? Since these cost under $100, I can't see a researcher not being able to afford one. You obviously can't use this service for cryptography, since relying on someone else for your entropy is just asking for trouble.

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  3. Re:random.org ? by lawpoop · · Score: 4, Interesting

    I do believe they use numbers generated by atomic decay. The site claims that

    The randomness comes from atmospheric noise... I wonder, how could you know that their numbers are truly random, as they claim?
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  4. Captchas require calculus by poszi · · Score: 3, Interesting

    Look at the signup page. You not only need to prove that you are a human but also that you have elementary knowledge of calculus.

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    1. Re:Captchas require calculus by E++99 · · Score: 4, Interesting

      Look at the signup page. You not only need to prove that you are a human but also that you have elementary knowledge of calculus.

      I propose adding this to the /. signup process.
  5. lava lamps at SGI - lavarand by SpaceLifeForm · · Score: 3, Interesting
    More info for those unfamiliar with the lava lamps random number generator:

    lavarand

    A similar LGPL implementation: LavaRnd

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  6. Re:Wait... by AchiIIe · · Score: 5, Interesting

    Bah, you must be a mathematician.
    If you put a monkey in front of a typewriter and he types on it for an infinite amount of time, he'll eventually type all of Shakespeare's work.

    It's called the Infinite monkey theorem

    Ignoring punctuation, spacing, and capitalization, a monkey typing letters uniformly at random has one chance in 26 of correctly typing the first letter of Hamlet. It has one chance in 676 (26 times 26) of typing the first two letters. Because the probability shrinks exponentially, at 20 letters it already has only one chance in 26^20 = 19,928,148,895,209,409,152,340,197,376, roughly equivalent to the probability of buying 4 lottery tickets consecutively and winning the jackpot each time. In the case of the entire text of Hamlet, the probabilities are so vanishingly small they can barely be conceived in human terms. The text of Hamlet, even stripped of punctuation, contains well over 130,000 letters which would lead to a probability of one in 3.4×10^183946.

    For comparison purposes, there are only about 10^79 atoms in the observable universe and only 4.3 x 10^17 seconds have elapsed since the Big Bang. Even if the universe were filled with monkeys typing for all time, their total probability to produce a single instance of Hamlet would still be less than one chance in 10183800. As Kittel and Kroemer put it, "The probability of Hamlet is therefore zero in any operational sense of an event...", and the statement that the monkeys must eventually succeed "gives a misleading conclusion about very, very large numbers." This is from their textbook on thermodynamics, the field whose statistical foundations motivated the first known expositions of typing monkeys

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  7. Re:Wait... by Trogre · · Score: 3, Interesting

    And yet, if those monkeys are truly typing randomly, any set of 130,000 characters they type has exactly the same chance of being Hamlet as it does anything else.

    Let's say my cat just traipsed on my keyboard and typed "dsafhhrnvcdbqwtrwqerwe897509k;ln b,.cnjhcvdsytwejbhd". Yesterday I might have asked you what were the chances of a cat randomly typing "dsafhhrnvcdbqwtrwqerwe897509k;ln b,.cnjhcvdsytwejbhd", and you might have replied "vanishingly small, so much so that it just isn't going to happen in your lifetime". And you'd be right from a statistical point of view. Yet it happened.

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