Cisco LEAP (EAP-Cisco Wireless)

Cisco LEAP was developed at a time when WEP showed vulnerabilities and the full wireless security blueprint was not standardized. Moreover, instead of requiring a certificate infrastructure for clients, organizations wanted to leverage authentications that were already available within their infrastructure for secure WLAN. So Cisco developed a lightweight protocol that leveraged many of the existing features and still provided the required security features.

LEAP uses 802.1x EAPOL messages, performs server authentication, achieves username/password (over MS-CHAP) as the user authentication mechanism, uses a RADIUS server as the authentication server, and provides mechanisms for deriving and distributing encryption ...

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