Decisive Factors for Quality of Experience of OpenID Authentication Using EAP

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Full text:
Author(s): Charlott Lorentzen, Markus Fiedler, Peter Lorentzen
Title: Decisive Factors for Quality of Experience of OpenID Authentication Using EAP
Translated title: Bestämmande faktorer för upplevd tjänstekvalité av OpenID-authentisering med EAP
Journal: Advances in Electronics and Telecommunications
Year: 2011
Volume: 2
Issue: 3
Pagination: 79-87
ISSN: 2081-8580
Publisher: Publishing House Of Poznan University Of Technology
Other identifiers: ISBN 978-83-7143-899-8
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Authors e-mail: charlott.lorentzen@bth.se
Language: English
Abstract: When using the web, long response times are bones
of contention for users, i.e. they damp the Quality of Experience (QoE). Though, if one knows the cause of the long response time one may examine what could be done to eliminate the obstacle. In this paper, we determine the weak point of the Extensible Authentication Protocol Method for GSM Subscriber Identity Modules (EAP-SIM) with the OpenID service with regards to excessive authentication times, which determine the response times. In order to provoke controlled increases of the latter, we emulate bad network performance by introducing bi-directional delay between the supplicant (client) and the authentication server. The same procedure is also applied to several other EAP methods. Based on a recent, exponential relationship between QoE and response time, we then identify, quantify and compare the decisive factors for QoE reduction as functions of the components of the authentication times. The results we obtain clearly show that one task of the EAP-SIM authentication contributes significantly more to the total response times than the other tasks, which points out the direction for future optimisation of user perception of authentication times.
Subject: Telecommunications\Network Security
Computer Science\Networks and Communications
Keywords: Authentication, EAP, EAP-SIM, OpenID, Quality of Experience, response times
Note: http://advances.et.put.poznan.pl/issues/3/ATE_issue3_p0077.pdf
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