NDLI: A secure public wireless LAN access technique that supports walk-up users

Content Provider	IEEE Xplore Digital Library
Author	Luo, H. Henry, P.
Copyright Year	2003
Description	Author affiliation: Res. labs., AT&T, Middletown, NJ, USA (Luo, H.; Henry, P.)
Abstract	Next-generation wireless LAN security techniques will be based on 802.1x and 802.11i/WPA standards, which mandate mutual authentication and air traffic encryption using per-user per-session keys. These requirements seem to be incompatible with supporting walk-up users (first-time users or one-time users), an important business strategy for public wireless LAN operators. This is because mutual authentication often requires a user to share a secret with an authentication server, but a walk-up user does not have a shared secret established in the public wireless LAN operator's authentication database yet. This paper proposes a secure public wireless LAN access technique to solve the above problem. It supports mutual authentication and air traffic encryption using per-user per-session keys for both registered users and walk-up users. Its authentication process consists of 802.1x/PEAP authentication and browser-based authentication. A registered user passing the 802.1x/PEAP authentication will skip the browser-based authentication. A walk-up user can pass the 802.1x/PEAP authentication using a wild-card username and password, but must then go through the browser-based authentication by either subscribing the public wireless LAN service or paying for it online. As soon as the 802.1x/PEAP authentication is passed, a per-user per-session key is generated and is used to encrypt the user's air traffic based on 802.11i/WPA The system architecture of a public wireless LAN employing this technique is also described.
Starting Page	1415
Ending Page	1419
File Size	409634
Page Count	5
File Format	PDF
ISBN	0780379748
DOI	10.1109/GLOCOM.2003.1258471
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN Authentication Cryptography Security Access control Privacy Virtual private networks Computer hacking File servers Databases
Content Type	Text
Resource Type	Article

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