3 ms·
Yeah, you need actual math to get anywhere. The pictures are mostly for prettiness and visual proof of non-randomness. But even with math you aren't measuring "
by bdr 18y ago
Yeah, you need actual math to get anywhere. The pictures are mostly for prettiness and visual proof of non-randomness. But even with math you aren't measuring "true randomness". The best you can do is to confirm statistical properties that random information would also have. It's impossible to tell in general whether a string is "true randomness" or, say, a sequence of bits from pi.
- antirez 18y agoFFT and Chi-square tests, simple bits/bytes distributions are all more interesting tests probably but actually a good generator will pass all this tests while being predictable. The only way to check if a PRNG is of cryptographically use is to analyze the way and sources used to generate the output.