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set. Recently Wang et al. presented a dynamic accumulator for batch updates at ICICS 2007. However, their construction suffers from two serious problems. We analyze them and propose a way to repair their scheme. We use the accumulator to construct a new scheme for common secure indices with conjunctive keyword-based
challenges in an encrypted audit log are speed of log and search process, correctness and semantic of search results and log size. In this paper a novel algorithm in order to build a secure searchable encrypted audit log by generating a record authenticator is presented. SQL command keywords along with their places, form record
5th GrC model is the formal model specified into the category of sets. It is a theory of ordered granules, namely, granules are ordered ldquosubsetsrdquo of the universe, We extract a 5th GrC model from a set of Web pages. A granule is a high frequent sequence of keywords, It is a tuple in a relation and naturally
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