• S.Jayaprakash
• C. S. Rajarajeswari
• V.M.Suresh

Cloud technology is a compelling paradigm in digital universe to provide massive-scale computing and storage services. It excludes the need to preserve powerful computing devices, dedicated storage medium, and software tools. The customers are allowed to move their application software and data to the network and use higher-level services on-demand. Of late, it has been observed that enormous development in the scale of Big Data (BD) produced through cloud technology. The security and privacy issues are important barriers to cloud adoption. Transmitting data outside the organizational limits and access them over the internet creates complete loss of the owner’s direct control. Hence, when storing and transferring sensitive information using public clouds, cyber threats in any form are expected in cloud computing. Therefore, cloud customers need to cognize the adoption of the service delivery model and the risk of security threats during implementation. In this article, we investigate the security requirements and different methods for protecting data. This study deeply covers data security and privacy challenges in an attempt to scholars can design the consistent security application models on cloud computing.

Cloud computing, Cryptography, Data privacy, Group signatures, Security.

"AN IRREVERSIBLE TRANSISTION TOWARDS BIG DATA CLOUDS: CHALLENGES OF DEPLOYING SECURITY AND PRIVACY SCHEMES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.538-543, July-2018, Available :http://www.jetir.org/papers/JETIR1807803.pdf

"AN IRREVERSIBLE TRANSISTION TOWARDS BIG DATA CLOUDS: CHALLENGES OF DEPLOYING SECURITY AND PRIVACY SCHEMES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp538-543, July-2018, Available at : http://www.jetir.org/papers/JETIR1807803.pdf