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Advances in Security and Payment Methods for Mobile Commerce by Wen-Chen Hu

By Wen-Chen Hu

Lately, the emergence of instant and cellular networks has made attainable the admission of digital trade to a brand new software and study topic: cellular trade, outlined because the trade or trading of commodities, companies, or details on the web by using cellular hand-held units. in exactly many years, cellular trade has emerged from nowhere to develop into the most well liked new pattern in enterprise transactions. despite the fact that, the prosperity and recognition of cellular trade could be delivered to the next point provided that details is securely and correctly exchanged between finish platforms (mobile clients and content material providers). Advances in defense and check tools for cellular trade comprises fine quality examine papers and business and perform articles within the parts of cellular trade safeguard and check from teachers and industrialists. It covers study and improvement result of lasting importance within the conception, layout, implementation, research, and alertness of cellular trade safety and money.

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Common attacks are known as shilling attacks, where adversaries attack the system by submitting fake or misleading ratings to confuse the system as we have discussed earlier. Further, participants can amount attacks on the trust management system by distributing tampered with trust information. PeerTrust tries to minimize such security weaknesses. For example, the use of the credibility factor of the feedback source can be seen as an effective step towards handling fake or misleading ratings. The ability to incorporate various transaction and community contexts can also act against some of the subtle attacks.

WLAN is easy to be broken-in because the network must send beacon frame with information that can be used by hackers, and this provides necessary clues for intrusion. Intruders can penetrate into the WLAN anywhere by using high sensitivity antennas. Subscribers might be deceived by unauthorized APs (access points). Because of limited bandwidth, the resource of WLAN may be exhausted by non-authorized traffic, and APs can be blocked. This is a so-called DoS (denial of services) attack. Fluhrer, Mantin and Shamir analyze the weakness of RC4 stream cipher that is applied to traffic between wireless access points and stations by WEP (wired equivalent protocol) and declare that WEP can be cracked within 15 minutes (Fluhrer, Mantin & Shamir, 2001).

Copyright © 2005, Idea Group Inc. Copying or distributing in print or electronic forms without written permission of Idea Group Inc. is prohibited. 40 Zhu & Pei Anomaly Detection Anomaly detection techniques assume that all intrusive activities are necessarily anomalous. This means that if we could establish a “normal activity profile” for a system, we could, in theory, flag all system states varying from the established profile by statistically significant amounts as intrusion attempts. However, if we consider that the set of intrusive activities only intersects the set of anomalous activities instead of being exactly the same, we find a couple of possibilities: (1) Anomalous activities that are not intrusive are flagged as intrusive.

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