Security and Privacy in the Context of the Public Clouds
Journal Title: International Journal of Research in Computer and Communication Technology - Year 2014, Vol 3, Issue 9
Abstract
The present perspective on the confidential data hosted in the cloud is based on fine-grained encryption of the data. Under such approaches, data owners are in charge of encrypting the data before uploading them on the cloud and re-encrypting the data whenever user credentials or authorization policies change. Data owners thus incur high communication and computation costs. In order to minimize the overhead at the data owners, while assuring data confidentiality from the cloud, a better approach should be implemented to enforce the secured access control to cloud. We propose an approach, based on two layers of encryption that addresses such requirement. Under this approach, the data owner performs a one layer encryption, and whereas the cloud performs a second layer of encryption on top of the owner encrypted data. We use an effective group key management scheme for encryptions. Our approach provides secrecy of the data and maintains the privacy of the user from the cloud while accessing the cloud.
Authors and Affiliations
Chikkam Naga Venkata Prakash, Sudhir Varma Sagiraju
Keywords
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