Author : Niharika and Deepak Rastogi

Cloud computing is a shift from physical to network paradigm using the concept of virtualization, utility computing, distributed network and resource sharing. Cloud may be a major step in the science and technical environment but it comes with an added level of risk due to handling over of our data and resources to the network under the cloud platform. In order to maintain the privacy and integrity of data, the data must be cryptographically secure and also the user virtual machine should be physically isolated while migration. In this paper we identify major security issues in cloud and their solutions. In addition we propose the implementation of an encryption architecture based on the very secure RSA algorithm, tokenization and digital signature.

Keywords: Cloud architecture, Service Models, RSA, Tokenization, Digital Signature

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)