I am quite new to both topics as well, but it seems like there are some similarities. That is, from the excerpt in the original article, the PRNG used by /dev/

I am quite new to both topics as well, but it seems like there are some similarities. That is, from the excerpt in the original article, the PRNG used by /dev/random essentially takes noise from some external input, and runs it through "a cryptographic function that outputs random numbers from the continually internal state". In both cases (cryptography and random numbers,) the goal is to transform known data into something that is indistinguishable from random. The way I understand it is that the entropy in the random number generator doesn't come from the algorithms, entropy comes from noise gathered off the hardware signals. The algorithms just make sure that even if you have biased noise generating the input, attackers will still have a very hard time using that to control the end result. I think this a very interesting question by the way, and hope my previous answer didn't come off as dismissive. I am still a novice in the world of security, and so I wanted to put links in instead of trying to explain this myself, as I probably would get it horribly wrong.