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Originally Posted by opr__
Now, I both ran weplab and aircrack (with default fudge factor) and even after 9 hours, the key of the first dump could not be found. When I ran weplab and aircrack on the second dump, he cracked it within 5 minutes. How is this possible? The first dump has even more unique IV's than the second dump ... anyone has a reasonable explanation for this?
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It's not always a matter of how many IVs you collect. There is some luck involved. Depending on the distribution of IVs, the number of keys that need to be tried can vary. In my tests, it the number of IVs collected has varied from as little as 80k and as high as 800k to discover a 64bit key. Most of the time the key is found somewhere in the 100-200krange.
g