On 04/02/2011 10:20 PM, Jon Callas wrote: >> If you only use the LSB/digit then it's not a concern since those >> numbers have a cycle of tens of meters and on top of that there is >> daily inaccuracy injected by design (not to be confused with jitter >> which was removed from the code 10 years ago)... > > It is in my opinion a mistake to try to infer from a lightly > entropic source where the entropy is. Take *everything* that you > think might useful and run it through a hash function. Thinking > that the entropy is in the low bits is a mistake. Hash functions > exist for a purpose. Use them.
Of course, if the GPS is tracking the random walk of a drunken sailor, you might be OK in terms of your entropy. (Sounds like an experiment is in order. ;-) -kevin -- Kevin W. Wall "The most likely way for the world to be destroyed, most experts agree, is by accident. That's where we come in; we're computer professionals. We cause accidents." -- Nathaniel Borenstein, co-creator of MIME _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
