Querying methods of Encrypted Cloud Data
In the recent times business organizations are opting for cloud based storage for reducing maintenance and storage cost for which data security is a major issue of concern. The Organizations may not completely rely on security provided by cloud service provider. Instead they would prefer for their own security model. Here data may be in relational or Non-relational with its own structures. If the data stored in the cloud is in encrypted format, querying will be difficult because for every retrieval process, the data has to be decrypted. This is again security problem with server. This paper explores about how to process and query the encrypted data stored in cloud. Different methods of querying, ranging from relational to Non-relational data are discussed in this paper
 A. Boldyreva, N. Chenette and Y. Lee , “Order-preserving symmetric encryption,” Advances in Cryptology-EUROCRYPT, 2009. Springer Berlin Heidelberg, pp. 224-241, 2009.
 C.Gentry, “A fully homomorphic encryption scheme,” Ph.D. dissertation, Stanford, CA, USA, 2009
 A. Boldyreva, N. Chenette, Y. Lee, A. O’Neill, Order-preserving symmetric encryption, Eurocrypt 2009, pp. 224-241.
 Meteor, Inc. Meteor: A better way to build apps. http://www.meteor.com, Sept. 2013
 Ning Cao, Cong Wang, Ming Li, Kui Ren, Wenjing Lou, Privacy-Preserving Multi-Keyword Ranked Search over
Encrypted Cloud Data, IEEE Transactions on Parallel & Distributed Systems, vol.25, no. 1, pp. 222-233, Jan. 2014
 Hrestak, D.; Picek, S., Homomorphic encryption in the cloud Information and Communication Technology, Electronics and Microelectronics (MIPRO), 2014 37th International Convention on, vol., no., pp.1400, 1404, 26-30 May 2014
 Raluca Ada Popa, Emily Stark, Jonas Helfer, Steven Valdez, Nickolai Zeldovich, M. Frans Kaashoek, and Hari Balakrishnan. 2014. Building web applications on top of encrypted data using Mylar. In Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation(NSDI'14). USENIX Association, Berkeley, CA, USA, 157-172
 Alexandra Boldyreva, Nathan Chenette, and Adam O'Neill. 2011. Order-preserving encryption revisited: improved security analysis and alternative solutions. In Proceedings of the 31st annual conference on Advances in cryptology (CRYPTO'11), Phillip Rogaway (Ed.). Springer-Verlag, Berlin, Heidelberg, 578-595
 Hingwe, K.K.; Bhanu, S.M.S., "Two layered protection for sensitive data in cloud," Advances in Computing, Communications and Informatics (ICACCI, 2014 International Conference on, vol., no., pp.1265, 1272, 24-27 Sept. 2014
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