PAKE on the Web

Xunhua Wang and Hua Lin
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Xunhua Wang: James Madison University, USA
Hua Lin: University of Virginia, USA

International Journal of Information Security and Privacy (IJISP), 2009, vol. 3, issue 4, 29-42

Abstract: Unlike existing password authentication mechanisms on the web that use passwords for client-side authentication only, password-authenticated key exchange (PAKE) protocols provide mutual authentication. In this article, we present an architecture to integrate existing PAKE protocols to the web. Our integration design consists of the client-side part and the server-side part. First, we implement the PAKE client-side functionality with a web browser plug-in, which provides a secure implementation base. The plug-in has a log-in window that can be customized by a user when the plug-in is installed. By checking the user-specific information in a log-in window, an ordinary user can easily detect a fake log-in window created by mobile code. The server-side integration comprises a web interface and a PAKE server. After a successful PAKE mutual authentication, the PAKE plug-in receives a one-time ticket and passes it to the web browser. The web browser authenticates itself by presenting this ticket over HTTPS to the web server. The plug-in then fades away and subsequent web browsing remains the same as usual, requiring no extra user education. Our integration design supports centralized log-ins for web applications from different web sites, making it appropriate for digital identity management. A prototype is developed to validate our design. Since PAKE protocols use passwords for mutual authentication, we believe that the deployment of this design will significantly mitigate the risk of phishing attacks.

Date: 2009
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International Journal of Information Security and Privacy (IJISP) is currently edited by Yassine Maleh

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