Titlebook: Network-Based Information Systems; First International Tomoya Enokido,Leonard Barolli,Makoto Takizawa Conference proceedings 2007 Springer

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Conference proceedings 2007tional Conference on Database and Expert Systems Applications DEXA-2007, which was held in Regensburg, Germany, September 3–4, 2007. The main objective of NBiS-2007 was to bring together scientists, engineers, and researchers from both network systems and information systems with the aimofencouragin

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Network-Based Information Systems978-3-540-74573-0Series ISSN 0302-9743 Series E-ISSN 1611-3349

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Lecture Notes in Computer Sciencehttp://image.papertrans.cn/n/image/662902.jpg

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Positive and Negative Authorizations to Access Protected Web Resourcesource. Such conflict situations may occur if an organization has decentralized administration, and/or several collaborating organizations have access to one resource and some of them apply positive authorizations while others apply negative authorizations. The proposed solution involves Belnap’s logic.

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A Secure Authentication Scheme for a Public Terminal Before a Transactiondata or perform transactions easily through these public terminals. Identifying these public terminals is therefore a most urgent topic. We propose an efficient and secure scheme that meets real environmental conditions for authenticating these public terminals before conducting a transaction.