Mobile Information Systems - Volume 7, issue 3

Authors: Leu, Fang-Yie | You, Ilsun | Tang, Feilong

Article Type: Research Article

DOI: 10.3233/MIS-2011-0122

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 165-167, 2011

Authors: Barolli, Admir | Spaho, Evjola | Barolli, Leonard | Xhafa, Fatos | Takizawa, Makoto

Article Type: Research Article

Abstract: Much work has been done on routing in Ad-hoc networks, but the proposed routing solutions only deal with the best effort data traffic. Connections with Quality of Service (QoS) requirements, such as voice channels with delay and bandwidth constraints, are not supported. The QoS routing has been receiving increasingly intensive attention, but searching for the shortest path with many metrics is an NP-complete problem. For this reason, approximated solutions and heuristic algorithms should be developed for …multi-path constraints QoS routing. Also, the routing methods should be adaptive, flexible, and intelligent. In this paper, we use Genetic Algorithms (GAs) and multi-objective optimization for QoS routing in Ad-hoc Networks. In order to reduce the search space of GA, we implemented a search space reduction algorithm, which reduces the search space for GAMAN (GA-based routing algorithm for Mobile Ad-hoc Networks) to find a new route. We evaluate the performance of GAMAN by computer simulations and show that GAMAN has better behaviour than GLBR (Genetic Load Balancing Routing). Show more

DOI: 10.3233/MIS-2011-0116

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 169-188, 2011

Authors: Doh, Inshil | Lim, Jiyoung | Chae, Kijoon

Article Type: Research Article

Abstract: In medical sensor networks, sensor nodes on a body of the patient sense the vital data and deliver them to the server system through mobile devices or gateways in the middle. However, when these linking devices do not function because of the battery outage or the system fault, the server system could not get patients' data during that period, and this situation could lead to serious problems. In this paper, to cope with this problem, we propose a …distributed authentication mechanism in which substituted devices could be authenticated to deliver patients' data to the server system in the unusual situation. Show more

Keywords: Distributed authentication, secure channel, ubiquitous, medical sensor networks, body sensor networks, security

DOI: 10.3233/MIS-2011-0117

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 189-200, 2011

Authors: Chen, Chin-Ling

Article Type: Research Article

Abstract: In recent years, as RFID reader equipment is ever more widely deployed in handled devices, the importance of security problems among RFID reader, tags and server have obviously gained increased attention. However, there are still many security issues preceding transactions; these issues are well worth discussing. In this paper, we propose a novel authentication scheme, conforming EPC C1G2 standards, at a low implementation cost for market application. In order to achieve mutual authentication, the proposed scheme …integrates fingerprint biometrics, related cryptology and a hash function mechanism to ensure the security of the transmitted messages. The proposed scheme also can resist known attacks. Show more

Keywords: Mutual authentication, RFID, security, attack, EPC C1G2 standards

DOI: 10.3233/MIS-2011-0118

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 201-216, 2011

Authors: Palmieri, Francesco | Fiore, Ugo | Castiglione, Aniello

Article Type: Research Article

Abstract: Wireless networks are more and more popular in our life, but their increasing pervasiveness and widespread coverage raises serious security concerns. Mobile client devices potentially migrate, usually passing through very light access control policies, between numerous and heterogeneous wireless environments, bringing with them software vulnerabilities as well as possibly malicious code. To cope with these new security threats the paper proposes a new active third party authentication, authorization and security assessment strategy …in which, once a device enters a new Wi-Fi environment, it is subjected to analysis by the infrastructure, and if it is found to be dangerously insecure, it is immediately taken out from the network and denied further access until its vulnerabilities have been fixed. The security assessment module, that is the fundamental component of the aforementioned strategy, takes advantage from a reliable knowledge base containing semantically-rich information about the mobile node under examination, dynamically provided by network mapping and configuration assessment facilities. It implements a fully automatic security analysis framework, based on AHP, which has been conceived to be flexible and customizable, to provide automated support for real-time execution of complex security/risk evaluation tasks which depends on the results obtained from different kind of analysis tools and methodologies. Encouraging results have been achieved utilizing a proof-of-concept model based on current technology and standard open-source networking tools. Show more

Keywords: Dynamic access control, active networks, analytic hierarchy process, multiple criteria decision analysis, nomadic computing, security audit, security assessment, ubiquitous networking

DOI: 10.3233/MIS-2011-0119

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 217-239, 2011

Authors: Ciou, Yi-Fu | Leu, Fang-Yie | Huang, Yi-Li | Yim, Kangbin

Article Type: Research Article

Abstract: In this paper, we propose a handover authentication mechanism, called the handover key management and authentication scheme (HaKMA for short), which as a three-layer authentication architecture is a new version of our previous work, the Diffie-Hellman-PKDS-based authentication method (DiHam for short) improving its key generation flow and adding a handover authentication scheme to respectively speed up the handover process and increase the security level for mobile stations (MSs). AAA server supported authentication is also …enhanced by invoking an improved extensible authentication protocol (EAP). According to the analyses of this study the HaKMA can effectively and efficiently provide user authentication and balance data security and system performance during handover. Show more

Keywords: HaKMA, DiHam, PKM, WiMax, IEEE802.16, wireless security

DOI: 10.3233/MIS-2011-0120

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 241-269, 2011

Authors: You, Ilsun | Lee, Jong-Hyouk | Hori, Yoshiaki | Sakurai, Kouichi

Article Type: Research Article

Abstract: The Mobile Broadband Association has developed the MIS and MISAUTH protocols as link-layer fast authentication protocols. A combination of MIS and MISAUTH protocols, called as MISP, provides secure and fast connection for a wireless access network, but it has been reported that MISP creates a weak session key and suffers from a denial-of-service attack. In addition, a transaction with an authentication server that is required for every authentication is considered as a delay factor during handovers. …In this paper, we present an improvement of MISP that utilizes the fast handover approach of Fast Mobile IPv6 and minimizes an involvement of the authentication server while eliminating identified security drawbacks of MISP. The formal security analysis is performed to verify the correctness of the proposed scheme. Moreover, the handover performance of the proposed scheme is compared with an existing scheme. Show more

Keywords: MISP, FMIPv6, BAN-Logic

DOI: 10.3233/MIS-2011-0121

Citation: Mobile Information Systems, vol. 7, no. 3, pp. 271-283, 2011