A Survey on Provable Multicopy Dynamic Data Possession in Cloud Computing Systems

Abstract

In Recent survey on cloud computing tolerate most of data owners worrying whether there data secure in cloud or not and data provides acting according to SLA or not, in order to resolve above issues in cloud the Cloud provider offering   MCDDPDS (multi copy dynamic data possession State), Using this MCDDPDS the data user can know the status of data whether his data is secure or not and if any violations are done by others then it gives alert to the data user.  The data owner will outsource his data to the could in order minimize local burden and to save the cost , In order to provide security the data owner before outsourcing he has to encrypt and upload to the cloud but due to security threat and loss of data the data owner outsourcing same copy into multiple servers and later whenever he need any dynamics on his data he can do like updating , deleting and appending .