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      • An Authenticated Privacy Preserving Multiword Data Retrieval over Encrypted Cloud

        M. Newlin Rajkumar,S. Palaniswami,V. Venkatesa Kumar,V. Durga Shankar 한국산업정보학회 2014 한국산업정보학회 학술대회논문집 Vol.2014 No.1

        Cloud Computing, the long term goal of utility computing has transformed the IT industry a lot. Data constantly contain sensitive information should be secured by policies and regulation defined by various organizations. However, information on cloud always causes privacy problems. Data encryption protects privacy and confidentiality but efficiency is not ensured. Symmetric Searchable Encryption (SSE) and Order Preserving Encryption (OPE) inevitably leaks the data and cloud users arc not authorized by the cloud. We propose, Trusted Centre Searchable Encryption (TCSE) which support multi keyword retrieval and user authentication. In TCSE, we employ a vector space model. Homomorphic encryption and a trusted center. The vector space model provides efficiency in accurate searching, homomorphic encryption involves in reducing computation cost and trusted center ensures access control in the cloud. Our approach guarantees practical efficiency for authentication and high security by eliminating data outflow.

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