This reminds me, in my undergraduate I implemented Fortuna in C and used it for a project in my statistics class. I seeded the generator and provided entropy fr

This reminds me, in my undergraduate I implemented Fortuna in C and used it for a project in my statistics class. I seeded the generator and provided entropy from different sources, then scored the output according to the NIST's "Statistical Test Suite". I found that poor sources of entropy very consistently caused a statistically significant drop in the test suite's score. It's hardly as rigorous an analysis as this paper, and I had forgotten about it (what's more, I'm sure my implementation had a few flaws of its own). If anybody would be interested in the results I'll see if I can dig them out from an old backup... edit: I've found the code, data and paper from that project. It includes a bunch of software and papers released by the US Federal government, so I won't post the link here, but if anyone is interested let me know and I'll try figure out what I can and cannot redistribute.