Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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    Privacy and trust in cloud database using threshold-based secret sharing
    (2013) Dutta, R.; Annappa, B.
    In today's cloud computing scenario, privacy of data and trust on the service provider have become a major issue and concern. Achieving trust and preserving the privacy of data stored in third-party cloud databases has emerged as a key research area. To achieve this, several different techniques have been proposed based on cryptography, auditing by a third party, etc. Secret sharing schemes have also been considered to address these issues of trust and privacy in databases by various researchers. In this paper, we propose a technique of using a well-known threshold-based visual secret sharing scheme to address the issue of privacy and trust in cloud databases and database-as-a-service offerings. We consider data records with at least one prime attribute and propose an indexing technique for the secret shares of records in a large database based on some properties of the secret sharing technique. Our technique is aimed at minimizing storage overhead of secret shares as well as high speed upload and retrieval of data. We discuss the results obtained from our implementation. Our implementation using Hadoop Distributed File System (HDFS) with Matlab shows that this technique minimizes storage overhead due to secret shares and ensures high speed data upload and retrieval. © 2013 IEEE.
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    An efficient game-theoretic approach for resource management in Cloud Federation
    (Institute of Electrical and Electronics Engineers Inc., 2016) Thakur, P.K.; Thomas, M.V.; Chandrasekaran, K.
    Cloud Federation is an emerging technology for the effective utilization of cloud resources. Effective management of resources is very much required in order to increase the profits of individual CSPs in the federation. Hence, it is of crucial business value for a cloud provider to develop an effective mechanism so that the resource management is efficient in the cloud federation scope. In this paper, we discuss the design and development of game-theoretic approach for the resource management mechanism also considering the trust values between the participating CSPs in the federation. We have discussed and analysed the performance of both the co-operative and non co-operative approaches for the resource allocation. © 2015 IEEE.
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    An efficient trust-based Game-Theoretic approach for Cloud Federation Formation
    (Institute of Electrical and Electronics Engineers Inc., 2016) Dhole, A.; Thomas, M.V.; Chandrasekaran, K.
    Cloud Federation or a Coalition of Cloud Service Providers (CSPs) is a hot topic nowadays in the industry as well as academia. Cloud Federation was introduced to overcome the realistic limited amount of resources available from a single CSP so that the CSPs may not lose its customers due to the unavailability of resources. But its a challenge to form a Cloud Federation which is stable, reliable and fair in terms of payoff to the CSPs that are part of the Cloud Federation. In this paper, we propose to find a solution to the Cloud Federation formation by following a game-theoretic approach considering the trust between the participating CSPs. This technique will also allow the CSPs to take decision unilaterally based on their own decisions depending on the profit they would receive upon inclusion into the federation. Our approach takes into consideration the trust between the CSPs taking part in the Cloud Federation Formation process. The Game-Theoretic approach used in our approach makes use of a simple Cloud Federation Formation policy which ensures stability and fairness in the Cloud Federation. © 2016 IEEE.