Semantic security

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  • For distributed systems and networks, we often should assume that there are adversaries Everywhere in the network Adversary may: eavesdrop, manipulate, inject, alter, duplicate, reroute, etc… Adversary may control a large number of network nodes that are geographically separated Dolev-Yao Threat Model: A very powerful adversarial model that is widely accepted as the standard by which cryptographic protocols should be evaluated Eve, the adversary, can: Obtain any message passing through the network Act as a legitimate user of the network (i.e.

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  • Nothing is more frustrating than knowing you have previously solved a complex problem but not being able to find the document or note that specified the solution. It is not uncommon to refuse to rework the solution because you know you already solved the problem and don’t want to waste time redoing past work. In fact, taken to the extreme, you may waste more time finding the previous solution than it would take to redo the work. This is a direct result of our information management facilities not keeping pace with the capacity of our information storage....

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  • Smart homes are intelligent environments that interact dynamically and respond readily in an adaptive manner to the needs of the occupants and changes in the ambient conditions. The realization of systems that support the smart homes concept requires integration of technologies from different fields. Among the challenges that the designers face is to make all the components of the system interact in a seamless, reliable and secure manner.

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  • To solve the problems caused by the merger, no schema changes are required. Merge the customer entity sets removing duplicate tuples with the same social- security field. Before merging the branch entity sets, prepend the old bank name to the branch-name attributeineachtuple.The employee entity sets can bemerged directly, and so can the payment entity sets. No duplicate removal should be performed. Before merging the loan and account entity sets, whenever there is a number common in both the banks, the old number is replaced by a new unique number, in one of the banks....

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  • Grid Computing: Lecture 4 - Seminar Review inludes topics Grid Computing Middleware, Grid Resource Management, Grid Computing Security, Applications of SOA and Web Services, Semantic Grid, Grid & E-Science, Grid Economics, Cloud Computing.

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  • The forward process makes use of the information contained in the hypothesis A. The backward process tries to find a chain of statements leading to the fact that the conclusion B is true. With the backward process, you start with the statement B that you are trying to conclude is true. By asking and answering key questions, you derive a sequence of new statements with the property that if the sequence of new statements is true, then B is true. The backward process continues until you obtain the statement A or until you can no longer ask and/or answer the key question. With t...

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  • Tham khảo sách 'web solutions for how to read and do proofs', công nghệ thông tin, quản trị web phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • One ongoing issue in translational informatics is patient privacy and the security of data. An approach that has been pursued using semantic technologies is to encode data access rules and then check all data accesses against these policies [39]. For exam- ple,apolicycangiveahospitalbillingspecialist access to data about procedures per- formed at the hospital for the purpose of insurance billing. Then, when procedure data is requested, the requester would need to show that they were a billing specialist and provide the purpose for which they want to access the data.

    pdf0p thangbienthai 17-11-2012 18 1   Download

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