Airheads Dictionary

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Initialization Vector (IV)

By j.easley posted Jan 21, 2015 08:17 PM

  

The IV is utilized by the RC4 steaming chipher that WEP encryption uses. The IV is a block of 24 bits that is combined with a static key. It is sent in cleartext and is different on every frame. The effective key strength of combining the IV with the 40-bit static key is 64-bit encryption. TKIP uses an extended IV.

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