Siemens IEEE802.11 - Manual (Page 61)

WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt Page 61 © Siemens, 2002
IEEE802.11i:
Robust Security Network (RSN)
Additional enhancement to existing IEEE802.11 functions:
n
Data privacy mechanism:
– TKIP (Temporal Key Integrity Protocol) to enhance RC4-based
hardware for higher security requirements, or
– WRAP (Wireless Robust Authenticated Protocol) based on AES
(Advanced Encryption Standard) and OCB (Offset Codebook)
n
Security association management:
– RSN negotiation procedures for establishing the security context
– IEEE802.1X authentication and key management
Associate
EAP Identity Request
EAP Identity Response
EAP Request
EAP Response
EAP Success
Access Request
Access Challenge
Access Request
Access Accept
Authentication
Server