I don't know whether Intel the corporation has said anything, but the responsible hardware engineer has personally stated there is no backdoor. http://lists.ran

I don't know whether Intel the corporation has said anything, but the responsible hardware engineer has personally stated there is no backdoor. http://lists.randombit.net/pipermail/cryptography/2013-September/005205.html http://lists.randombit.net/pipermail/cryptography/2013-Septe... If I had an application where it mattered, I would pick RDRAND over a software system that was not reviewed, built, verified, and continuously monitored by someone I trust. It's implausible that RDRAND on my hardware is implemented differently from the hundreds of thousands of other copies of the core, or differently from the way it was yesterday. I have no such confidence in /dev/random. That doesn't mean there's anything wrong with FreeBSD's RNG; it only means that it's harder to be sure I'm actually using it.