On Sun, Mar 04, 2012 at 09:44:03PM -0800, coderman wrote: > On Sun, Mar 4, 2012 at 9:34 PM, coderman <[email protected]> wrote: > > . > > the hardware random source is just a component in application layer > > entropy availability, but it would be similar to what you'd in the > > twin high bitrate hardware noise sources in the entropy key or the VIA > > padlock instructions, and other on die and bus noise sources. > > looks like entropy key is 32 kbit/s, [0] > via padlock xstore 1-2Mbps to 100+Mbps (per bios&mode) [1]
Although the Entropy Key does a huge amount of processing (comparitively) before delivering that 32kbit/s: it's already mixed the values from two sources, done entropy estimation, done FIPS statistical tests, and pooled the data. I have no idea about the quality of VIA's numbers or what security they provide in hardware against attack or verification of quality of numbers. For all I know, they could just be exposing a noisy circuit directly via a register. B. _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
