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• Design a novel storage and encryption algorithm to manage the keyword dictionary. • Greatly reduce both the dictionary reconstruction overhead and the file index re-encryption time as new keywords and files are added. • Design a novel trapdoor generation algorithm. • Take the keyword access frequencies into account when the system generates the ranked(More)
—Cloud computing is becoming increasingly prevalent in recent years. It introduces an efficient way to achieve management flexibility and economic savings for distributed applications. To take advantage of computing and storage resources offered by cloud service providers, data owners must outsource their data onto public cloud servers which are not within(More)
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