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4

It can be attacked in the same way, but not as efficiently. The RC4 "NOMORE" attack (pdf), for example, uses both Fluhrer-McGrew biases, which are biases towards certain pairs of values in certain positions, and Mantin's "ABSAB biases", which are repetitions of bigrams. Both of those biases will survive a XOR of two keystreams, but will be less frequent. A ...


2

Part of the problem you're having is that there are multiple distinct vulnerabilities in WEP, and you're getting confused by the sheer number. For example: I still don't have an understanding of how one might exploit [repeating IVs] to retrieve the key Answer: those are two separate vulnerabilities. The shortness of the IV space is an obvious ...


1

It seems that because it uses a initialization vector of 24 bits, which is relatively short, is easy to determine which key was used to encrypt the data. Actually, it's not the shortness of the IV that does cause the key leakage (although it does cause other problems). Instead, it's due to how WEP combines the IV and the key, and then how the RC4 key ...



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