A privacy and delegation-enhanced user authentication protocol for Portable Communication Systems. (1st September 2010)

• Record Type: Journal Article
• Authors: Wang, Ren-Chiun; Juang, Wen-Shenq; Lei, Chin-Laung
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 6:Number 3(2010)
• Page Start: 183
• Page End: 190
• Publication Date: 2010-09-01
• Subjects: user authentication -- hash function -- privacy protection -- proxy signatures -- wireless communications -- portable communication systems -- mobile communications -- digital signatures -- delegation levels -- security levels; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

Abstract

Recently, Lee et al. proposed a security enhanced delegation-based authentication protocol for Portable Communication Systems (PCSs). The major merits include: 1) the privacy protection of Mobile User (MS); 2) MS can construct a digital signature to prove the requests; 3) the satisfaction of some security properties; 4) the mutual authentication between MS and the Visited Location Register (VLR); 5) low computation and communication cost of MS. We then show that the privacy of MS is not kept and the overcharge problem exists in Lee et al.'s protocol and propose a method to enhance the delegation and security level and to keep the same efficiency.