Published Paper Details:

The cloud computing is considered to be the architecture of the information and technology of the upcoming generation. The use of this cloud computing, which provides benefits like cost efficiency and accessibility of data has been increasing speedily in various organization. The major disadvantages with this cloud computing is associated with security issues like, privacy, integrity and confidentiality of the data, this private data is managed by the third parties whom we cannot trust. We have identified this potential security problem and difficulties in the accessibility of the data while the earlier works ensure remote data integrity. It seriously lacks the security of the data. Hence, the aim here is to ensure privacy and protect integrity and confidentiality of the data and access. This paper in particular tries to archive privacy, integrity, confidentiality of data stored in the cloud and moving towards Multi-cloud which is a recent origin. We tried to provide security by adopting cryptographic techniques, where we focus on Elliptical curve and Diffie Hellman key exchange protocol for encryption and decryption of Multi-cloud.