This question already has an answer here:
- Mixing Entropy Sources by XOR? 1 answer
I am thinking of buying a USB hardware advertised as producing a stream of 'high quality' random numbers which I take to mean they are indistinguishable from a stream of 'true' random numbers. If I add (or XOR) such a 'high quality' stream with a stream of PRN's from my computer, will I still have a 'high quality' stream?