What is WEP?
Wired Equivalent Privacy or WEP is a security algorithm for IEEE 802.11 wireless networks. It was a Wi-Fi security standard in 1999. Later, the algorithm was found to be insecure, and hence, it was superseded by Wi-Fi Protected Access or WPA in 2003.
WEP has many security vulnerabilities. A commonly known such vulnerability is the IV attack. WEP uses 24-bit IV and RC4 stream cipher. An attacker can perpetrate an IV attack and easily compute the keystream used by the RC4 stream cipher. And thus, he can decrypt all the packets that used the same IV and keystream for encryption.
What is the IV attack? And, how is WEP vulnerable to this IV attack? In this article, we would discuss that in detail.
In this article, we will discuss:
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What is WEP?
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How does WEP encryption work?
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How is WEP vulnerable to IV attack?
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