A New Secure and Lightweight Searchable Encryption Scheme over Encrypted Cloud Data

Tahir, S. F., Ruj, S., Rahulamathavan, Y., Rajarajan, M. & Glackin, C. (2017). A New Secure and Lightweight Searchable Encryption Scheme over Encrypted Cloud Data. IEEE Transactions on Emerging Topics in Computing, doi: 10.1109/TETC.2017.2737789

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Abstract

Searchable Encryption is an emerging cryptographic technique that enables searching capabilities over the encrypted data on the cloud. In this paper, a novel searchable encryption scheme for the client-server architecture has been presented. The scheme exploits the properties of modular inverse to generate a probabilistic trapdoor which facilitates the searching over the secure inverted index table. We propose indistinguishability that is achieved by using the property of a probabilistic trapdoor. We design and implement a proof of concept prototype and test our scheme onto a real dataset of files. We analyze the performance of our scheme against our claim of the scheme being light weight. The security analysis yields that our scheme assures higher level of security as compared to other existing schemes.

Item Type: Article
Additional Information: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: Searchable Encryption, Modular Inverse, Extended Euclidean Algorithm, Indistinguishability, Privacy Preservation, Inverted Index, Database as a Service (DaaS)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/18275

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