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To resolve the problems of security and ciphertext query efficiency for the XML database, a ciphertext retrieval model is presented in this paper. In this model, the value index and structure index in the encrypted XML database are established and the entrance addresses are recorded with the bucket management algorithm to realize the rapid retrieval for encrypted XML data. Experiments results show that this model not only has high security and improved ciphertext retrieval efficiency, but also supports the range query and easy to update.
Date of Conference: 24-26 Aug. 2010