Bug #2472
Updated by dillon almost 10 years ago
Dear DragonFlyBSD-bugs, I have made a couple of updates to the L15 algorithm since it was imported into the DragonFlyBSD tree as the CSPRNG used for /dev/urandom (/sys/kern/kern_nrandom.c). The first update (output indirection) is purely security related (and a slight decrease in performance), so I doubt you'd be interested in that. However, the second update (which I implemented last night) increases performance and also is a minor security improvement. I would have thought this would be of interest to DragonFly, especially considering that the (random) system thread on DragonFly calls NANOUP_EVENT() approximately once every second. Both updates are available in source form (C++): http://www.leopard.uk.com/L15 And the corresponding documentation (regarding both updates) is also available from the above URL. If you have an questions or don't understand what I'm talking about feel free to contact me by E-mail. -- Sincerely, Robin Carey BSc