Re: WEP Encryption Key Length



Greg Berchin wrote:

I did a little reading on the subject last night. Apparently it used to
be the case that 128 WEP was crackable, but it took a long, long time.
New techniques (and software that implements them) were introduced just
a couple of years ago that do it in seconds or, at most, minutes.

Can you please post a reference. I have no doubts that WEP-128 can be cracked fairly quickly using the computing power of PC but it will take some time just to collect the necessary amount of data.

What a world we live in.

It is frightening the computational capabilities that we have on our
desks.

What is really frightenning is that the lame implementation of the security made it to be the world standard. The weakness is obvious; anyone familiar with the basics of the cryptography could have done better then that. How did it happen? How much of the other stuff that we use to rely on is actually a lame?

I remember being in graduate school in 1985, doing research with
Livermore Labs on what was then the fastest computer in the world, the
Cray 2.

On my graduate, I developed the subroutines in the 286 assembly. That used to speed up the things immensely :-)

That phenomenal Cray was only about as fast as a 400 MHz
Pentium II, depending upon which benchmark you believe
(http://conman.geos.vt.edu/~sdk/Benchtimes.html).

So, every household has a Cray. Now what? :-) Did they make any discoveries? Approached any untractable problems? Where are the results?


Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com
.

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