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* Posts by Damien Guard

1 post • joined 10 Apr 2007

WEP key wireless cracking made easy

Damien Guard

So what, we're using 128-bit

Unless I'm mistaken the default WEP key size is 128-bit and of course every bit doubles the number of possibilities.

Let's assume for just a second that the attack is scalable and the time taken simply doubles when the number of possibilities doubles.

Starting with the premise of 1 minute for 104-bit and the fact there are 24-bits remaining between the 104-bit demonstration and the 128-bit reality that means we should double the 1 minute attack time 24 times.

This gives us a result of 8,388,608 minutes or 139,810 hours or 5825 days or nearly 16 years.

I wouldn't say 128-bit WEP is dead just yet although obviously improved attack mechanisms and faster CPU's will no doubt continue to erode it.

[)amien

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