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
To ensure uniformity of treatment among all contributors, other forms may not be substituted for this form, nor may any wording of the form be changed. This form is intended for original material submitted to AJCT and must accompany any such material in order to be published by AJCT. Please read the form carefully.
The undersigned hereby assigns to the Asian Journal of Convergence in Technology Issues ("AJCT") all rights under copyright that may exist in and to the above Work, any revised or expanded derivative works submitted to AJCT by the undersigned based on the Work, and any associated written, audio and/or visual presentations or other enhancements accompanying the Work. The undersigned hereby warrants that the Work is original and that he/she is the author of the Work; to the extent the Work incorporates text passages, figures, data or other material from the works of others, the undersigned has obtained any necessary permission. See Retained Rights, below.
AJCT distributes its technical publications throughout the world and wants to ensure that the material submitted to its publications is properly available to the readership of those publications. Authors must ensure that The Work is their own and is original. It is the responsibility of the authors, not AJCT, to determine whether disclosure of their material requires the prior consent of other parties and, if so, to obtain it.
RETAINED RIGHTS/TERMS AND CONDITIONS
1. Authors/employers retain all proprietary rights in any process, procedure, or article of manufacture described in the Work.
2. Authors/employers may reproduce or authorize others to reproduce The Work and for the author's personal use or for company or organizational use, provided that the source and any AJCT copyright notice are indicated, the copies are not used in any way that implies AJCT endorsement of a product or service of any employer, and the copies themselves are not offered for sale.
3. Authors/employers may make limited distribution of all or portions of the Work prior to publication if they inform AJCT in advance of the nature and extent of such limited distribution.
4. For all uses not covered by items 2 and 3, authors/employers must request permission from AJCT.
5. Although authors are permitted to re-use all or portions of the Work in other works, this does not include granting third-party requests for reprinting, republishing, or other types of re-use.
INFORMATION FOR AUTHORS
AJCT Copyright Ownership
It is the formal policy of AJCT to own the copyrights to all copyrightable material in its technical publications and to the individual contributions contained therein, in order to protect the interests of AJCT, its authors and their employers, and, at the same time, to facilitate the appropriate re-use of this material by others.
If you are employed and prepared the Work on a subject within the scope of your employment, the copyright in the Work belongs to your employer as a work-for-hire. In that case, AJCT assumes that when you sign this Form, you are authorized to do so by your employer and that your employer has consented to the transfer of copyright, to the representation and warranty of publication rights, and to all other terms and conditions of this Form. If such authorization and consent has not been given to you, an authorized representative of your employer should sign this Form as the Author.
AJCT requires that the consent of the first-named author and employer be sought as a condition to granting reprint or republication rights to others or for permitting use of a Work for promotion or marketing purposes.
1. The undersigned represents that he/she has the power and authority to make and execute this assignment.
2. The undersigned agrees to indemnify and hold harmless AJCT from any damage or expense that may arise in the event of a breach of any of the warranties set forth above.
3. In the event the above work is accepted and published by AJCT and consequently withdrawn by the author(s), the foregoing copyright transfer shall become null and void and all materials embodying the Work submitted to AJCT will be destroyed.
4. For jointly authored Works, all joint authors should sign, or one of the authors should sign as authorized agent
for the others.
Licenced by :