Slashdot is powered by your submissions, so send in your scoop


Forgot your password?

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


Comment: Problem of Entropy+Computers (Score 1) 158

by Guy From V (#49348897) Attached to: Many Password Strength Meters Are Downright Weak, Researchers Say

1) Computers are, by design, a tool to lessen entropy. Computers sail through an Internet of chaos and disorder like icebreakers leaving a trail of ordered, aligned wreckage in their wake.

2) Any program or method employed by a computer to evaluate the "entropic value" of a string in the end means absolutely nothing except that it correlates to other virtual "entropic values" of other strings like it using purely ordered, metered and aligned correspondences of information bits.

3) Computers interacting or evaluating entropy in any way lessens the True Entropy of a system (or password or system of passwords).

Allowing a computer to determine entropy nessesarilly reduces it and using such a limited symbolic representation like a keyboard will soon not contain enough variables to adequately retain enough entropy to withstand faster, cooler processors. One method I see for future "password" usage uses the old Ars Memoria or Art of Memory, which I think is somewhat touched upon in xkcd's "correcthorsebatterystaple" method.

In short, letting PCs choose what is random or not is the exact opposite of how true randomness works. We wouldn't trust a randomness engine without knowing how that engine generated the seed of entropy injected to cascade information complexity but knowing how it is done obliterates it's entropic value. In real short, I'm really stoned and I don't know what I'm talking about anymore and this post is too long and boring...I'm hungry dammit.

At the source of every error which is blamed on the computer you will find at least two human errors, including the error of blaming it on the computer.