Secure Computation on Cloud Storage: A Homomorphic Approach

Daya Sagar Gupta (Department of Computer Science and Engineering, Indian School of Mines, Dhanbad, India) and G. P. Biswas (Department of Computer Science and Engineering, Indian School of Mines, Dhanbad, India)
Copyright: © 2015 |Pages: 29
EISBN13: 9781522506966|DOI: 10.4018/JCIT.2015070103
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Abstract

This paper describes a way by which computation on cloud storage is securely possible. A user stores their secret (encrypted) files on cloud storage and later on, retrieves an addition of their original files, however, the cloud system cannot decrypt the stored encrypted files by own. In this paper, the authors use the homomorphic property to securely compute the addition of the files. The implementation of their proposed protocol is based on the computation on the basic properties of elliptic curves and bilinear mapping. The security of proposed encryption technique depends on the hardness of elliptic curve operations.
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