Temporal Key Integrity Protocol (TKIP), developed by the IEEE's 802.11 task group, is one of two major components of the Wi-Fi Alliance's Wi-Fi Protected Access (WPA) specification.
TKIP, like WEP before it, is based on the RC4 encryption algorithm; but TKIP, which will be available as a software/firmware upgrade for access points and Wi-Fi cards already equipped with WEP, has a longer key length and uses dynamic keys that are swapped periodically.

WiFi Protected Access (WPA) is the new security standard adopted by the WiFi Alliance consortium. WPA delivers a high level of security and bridges the gap between WEP and 802.11i networks, and has the advantage that the firmware in older equipment may be upgradeable. WPA uses Temporal Key Integrity Protocol (TKIP). TKIP is designed to allow WEP to be upgraded. This means that all the main building blocks of WEP are present, but corrective measures have been added to address security problems.
