-----Original Message----- From: mgraffam@mhv.net <mgraffam@mhv.net> Date: Friday, August 07, 1998 4:14 AM
Interestingly, the parity of a $10 10year old Radio shack monophonic FM radio, UNSHIELDED, in a digitally-noisy environment, sampled at 44Khz and 16 bits, passed Diehard.
Yeah, that is pretty neat .. maybe I'll tear the shielding off of my source and see what sort of results I get. Maybe the shielding I put in place is unnecessary.
Hmmm... IMHO, it just means that you can't rely on statistic tests alone in order to measure entropy content. In fact, you can't measure it at all: you can only set upper bounds, but, sadly, no lower bounds. Remember: also pi's digits would pass DIEHARD, and an external attacker could well inject such kind of EMI into an unshielded receiver. Enzo