A Survey on Enhanced Data Deduplication in Cloud Environment

Abstract

Cloud computing is an information technology (IT), a model for enabling ubiquitous access to shared pools of configurable resources.Data deduplication is a technique for eliminating duplicate copies of data, and has been widely used in cloud storage to reduce storage space and upload bandwidth. Although convergent encryption has been extensively adopted for secure de duplication, A critical issue of making convergent encryption practical is to efficiently and reliably manage a huge number of convergent keys. This paper provides the comprehensive study of cloud security issues , various algorithms and encryption and decryption techniques used to ensure the secure data dedpulication in cloud environment.