Got a bit diverted from what I was doing & wrote a #ChaCha20 based Psuedo-Random Number Generator in #Python to play around with some #CSPRNG improvement techniques. Then, of course, I had a go at #backdooring it, to allow backtracking, cos why not? https://www.bentasker.co.uk/blog/software-development/689-writing-a-chacha20-based-csprng