A COMPARATIVE STUDY OF SECURE SEARCH PROTOCOLS IN PAY - AS - YOU - GO CLOUDS

V. Anand, Ahmed Abdul Moiz Qyser

Abstract: Cloud computing has emerged as a major driver in reducing the information technology costs incurred by organizations. In a costsensitive environment, an organization is willing tolerate a certain threshold of delay while retrieving information from the cloud. In this paper, we focus on the fundamental issues of cost efficiency and privacy. We review three keyword-based secure search protocols, namely Ostrovsky protocol, COPS protocol and EIRQ protocol. Each protocol offers an improvement over the basic keyword search used by today’s cloud users. In Ostrovsky, encryption offers privacy. In COPS, aggregation results in a limited amount of cost efficiency. In EIRQ, users can retrieve the desired percentage of files by assigning ranks to queries. This feature is useful if the user is only interested in a subset of all the matched files. We present a comparison of the performance of these protocols and conclude by listing the future work that could be carried out in this area

Keywords: differential query services, cloud computing, cost efficiency, pay-as-you-go

DOI: https://doi.org/10.15623/ijret.2014.0317001