What is dynamic re-keying?
• Dynamic keying is a technique for changing the WEP key used between the supplicant and access point. It is generally changed on a regular basis. This technique is only available if the authentication method used results in session keys being available on the supplicant and authentication server. Techniques such as EAP-TLS and EAP-TTLS support this. • the end of authentication, if the supplicant is to be allowed access, the authentication server will sends an access-accept packet to the authenticator. This access-accept will include the session keys. This means that now all three components (supplicant, authenticator and authentication server) have the session keys. • The access point will use the session keys to encrypt the WEP key and send it to the supplicant. The supplicant will use its session keys to decrypt this WEP key and begin using it. The access point can send a new WEP key at any time, knowing that only the supplicant possessing the session key will be able to access the
