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True Random Number Generator Goes Online

Posted by ScuttleMonkey on

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."

3 of 439 comments (clear)

  1. An external random number generator? by solevita · · Score: 5, Insightful

    Call me paranoid, but I think I'd rather use a local pseudo random number generator than an external true random generator. My security concerns associated with using a local pseudo random number generator are outweighed by my privacy concerns of contacting a third party every time I want to establish a SSH connection or use my credit card online.

    Great for research though, of course.

  2. Re:Wait... by Lord+Ender · · Score: 5, Insightful

    Actually, a random number generator isn't really random unless it is possible for it to generate the number 42 a thousand times in a row...

    --
    A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
  3. Re:wonky definition of pseudo-random by Baron+von+Leezard · · Score: 5, Insightful
    I'm not concerned that it's not pseudo-random. My point is that's not how any modern pseudo-random number generators actually work. Maybe during WWII, but not today. The common PRNG techniques are:
    1. linear congruential generators
    2. lagged Fibonacci generators
    3. linear feedback shift registers
    4. generalised feedback shift registers
    5. Mersenne twister
    6. Fortuna (if you need one that's cryptographically secure)
    7. Blum Blum Shub (likewise)

    These are all pure mathematical algorithms. Nowhere in any of these is there any sort of pre-generated random lookup tables. (Unless you count the S-boxes used in some block ciphers with Fortuna.) Pre-generated "random" lookup tables only hide poor randomness in the generation process and don't actually improve the situation cryptographically at all; I suspect that for most other applications there would be problems as well. If your generated numbers don't cover the entire domain space uniformly, then they still won't no matter how many lookup tables you use to transform them.

    According to the article, people are sitting around rolling dice to generate random number sequences. Really? REALLY?!? Who wrote this article?

    [BvL]