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In this paper, we present techniques for a network forensics analysis mechanism that includes effective evidence presentation, manipulation and automated reasoning. We propose the evidence graph as a novel graph model to facilitate the presentation and manipulation of intrusion evidence. For automated evidence analysis, we develop a hierarchical reasoning framework that includes local reasoning and...
There is some private and sensitive data in database, which need to be protected from attacking. In order to reinforce the security of data, an effective mechanism, cryptographic support has been widely used. However, we must make a tradeoff between the performance and the security because encryption and decryption greatly degrade the query performance. To solve such a problem, a novel approach is...
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