Authorized Deduplication: An Approach for Secure Cloud Environment

Abstract

Cloud computing provides an individual user unlimited storage space, availability and accessibility of data anytime at anywhere. Cloud service provider is able to maximize data storage space by integrating data deduplication into cloud storage, although data deduplication removes redundant data and replicated data occurs in cloud environment. In a cloud environment, data privacy preserving is also an important topic to be considered and to achieve this data confidentiality in order to support deduplication, new type of convergent encryption technique is used for encrypting the data before outsourcing. This paper propose how cloud service and storage providers employ data deduplication technique without giving access to either user's plaintext or user's decrypted data.