[CentOS] Elliptic curve on Centos 6.x
John R Pierce
pierce at hogranch.com
Sat Jan 4 01:19:19 UTC 2014
On 1/3/2014 4:25 PM, Timothy Murphy wrote:
> Shannon entropy only makes sense when applied to a random variable.
> It cannot be applied to a single string, as in this case.
the seed of a algorithm like /dev/urandom is not a single variable, its
a big array of variables. these have to be created with sufficiently
random external events to achieve a reasonable level of entropy, and if
you continue to generate pseudo-random-numbers from this when those
random external events aren't ongoing at a high enough rate relative to
your requirements for new random numbers, eventually the 'entropy' runs
out, and the sequence becomes increasingly predictable.
--
john r pierce 37N 122W
somewhere on the middle of the left coast
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