FILE FRAGMENTATION AND DUAL HOMOMORPHISM ENCRYPTION TECHNIQUE FOR SECURITY PUBLIC CLOUD

Abstract

Outsourcing data which deploy over public cloud to an untouchable definitive control, as is done in circulated processing, offers climb to security concerns. The data exchange off might happen because of attacks by various customers and center points within the cloud. Thus, high endeavors to set up wellbeing are required to secure data within the cloud. Then again, the used security strategy ought to in like manner consider the headway of the data recuperation time. Proposed system performs fragmentation and replication of input data and loads it at each randomly selected data center. Each of the centers stores only a unitary part of a data record that ensures that even in the case of a productive strike, no imperative information is revealed to the attacker. Peer-to-Peer computing, highly available storage services, this P2P storage cloud storage can be formed to offer lowering the economic cost by increases as well as decreases the storage space of when participating users. Must been two cloud severs and users have trusted outside domain of data owners, P2P storage cloud brings becomes new challenges for data security and access control mechanism when that time data owners store sensitive information for sharing in the trusted domain. Moreover, there are number mechanisms for access control in P2P storage cloud. To this issue, we design a dual cipher text-policy attribute-based homomorphism encryption (ABHE)scheme.