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new notion called statistics privacy, i.e., the property that predicate privacy is preserved even when the statistical distribution of keywords is known. The second scheme we proposed makes a tradeoff between statistics privacy and storage efficiency (of the delegate). Compared to PEKS, both schemes introduce reasonable
This paper introduces and explores a new concept of timed-release searchable encryption (TRSE) which can be used to solve the time-sensitive cipher text retrieval problem. In this paper, we preliminarily focus on the PKTRSE which is a kind of public key TRSE. In our PKTRSE model, the sender encrypts a message so that
, which will allow them to utilize cloud services without the risks of leaking private data to outsiders and even service providers. In this paper, we propose an exclusive-or (XOR) homomorphism encryption scheme to support secure keyword searching on encrypted data. First, this scheme specifies a new data protection method
addition, finding good results concerning the given subjects needs to consider the entire context. However, context can be derived from user interactions. In this work, we propose a new method to retrieval conversation on micro blogging sites. It's based on content analysis and content enrichment. The goal of our method is to
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