Is there a floating-point CSPRNG that operates, natively, using 32-bit floating point operations?
Looking for a CSPRNG that's very fast on GPUs, and would be hard for a CPU to beat.
EDIT: Floating point doesn't matter too much. Specifically, I'm looking for something for which GPUs or FPUs are, by far, the optimal hardware to use: as opposed to custom hardware, because the operations used are already heavily optimized on GPU.
My understanding is that floating-point-operations (FLOPS) are probably the best candidate here. (It seems to me that most chaotic attractors can be trivially run using FLOPS.)