May 25, 2013

1.6.9 TKIP

TKIP

Temporal Key Integrity Protocol (TKIP) is a security protocol defined by the IEEE 802.11 wireless networking specification. TKIP was designed to replace WEP without requiring the replacement of legacy hardware. Customers could take advantage of it by updating firmware instead of having to replace hardware.1

TKIP is a "wrapper" that goes around the existing WEP encryption.  TKIP comprises the same encryption engine and RC4 algorithm defined for WEP.  However, the key used for encryption in TKIP is 128 bits long.  This solves the first problem of WEP: a too-short key length.2

It is the encryption method used in Wi-Fi Protected Access (WPA).

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