Temporal Key Integrity Protocol
Temporal Key Integrity Protocol or TKIP short is a security protocol for wireless networks according to IEEE 802.11 standard.
TKIP [ ˌ ti ː kɪp ] was developed by the IEEE 802.11i task group in collaboration with the Wi-Fi Alliance to replace WEP without new or additional demands were made on the hardware. The compatibility with the hardware in use was mandatory, as Wi-Fi networks without a functioning encryption on the data link layer had more to become aware of the weaknesses of WEP.
From 31 October 2002, the Wi-Fi Alliance supported TKIP under the name Wi -Fi Protected Access (WPA). The IEEE confirmed the final version of TKIP. Along with more robust solutions such as 802.1X and the AES-based CCMP they were published on 23 July 2004 at the IEEE 802.11i - 2004. A short time later, the Wi-Fi Alliance took over the full specifications under the marketing name WPA2.
TKIP as WEP RC4 algorithm for encryption and 64- bit cryptographic hash function for Michael Message Integrity Check. In addition, TKIP ensures that every data packet is secured with a different key, the MAC address of the client and the 48 -bit sequence number flows ( as a measure against replay attacks ). Packets that do not fit into the sequence are discarded directly.
- Cryptologic method