Sjors · 3d Entropy is hard to test. You'd have to have to run it on (slow) real hardware billions of times to find a 32 bit collision. In a simulator you don't expect to use the real TRNG. Checking library symb... Matt Corallo @matt 1785684883 All the more reason for defensive coding in RNGs. Sadly this isn’t the norm (does anyone do it?) but hopefully it can become it… Matt Corallo @matt · 3d Replying to @waxwing That’s definitely not true. If you can run a test on the bits (and can extract a few orders of magnitude more bits than you need) before you use them and before they’re hashed/whitened/etc, you can absolutely test for quality. You then take a few sources that you’ve tested Show more 1