دانلود An Efficient Auditing Protocol for Secure Data Storage in Cloud Computing

Abstract

Cloud Computing is a type of distributed computing whereby   resources   and   applications   are   shared   over   the   internet. These applications are stored in one location and can be accessed in different location by any authorized users where the  user  does  not  need  any  infrastructure.  In  cloud  storage,  while outsourcing trust worthiness of the data is a scary task in cloud.  To  ensure  the  integrity  of  dynamic  data  stored  in  the  cloud,  external  Third  Party  Auditor  (TPA)  is  acquainted  in  a  cloud  infrastructure.  For  enabling  public  auditing  in  cloud  data storage security, users can  resort  to  an  external  auditor  to    check    integrity    of  an  outsourced    data.  The  third  party  auditor    (TPA)    should    met    the    following    fundamental    requirements:  1)  TPA  should  be  able  to  efficiently  audit  the  cloud  data  without  revealing  the  original  data,  and  it  should  not  add  burden  to  the  cloud  user;  2)  Auditing  process  should  not  bring  no  new  vulnerabilities  towards  the  user  data.  3)  Integrity of the data is protected against TPA by invoking some cryptographic  techniques  to  ensure  the  storage  correctness  in  cloud. In particular, this scheme achieves batch auditing where multiple  delegated  auditing  tasks  from  different  users,  can  be  performed  by  the  TPA  and  further  enables  TPA  to  perform  data  dynamics  operations.  Thus,  the  performance  analysis  depicts  that  the  proposed  schemes  are  more  sheltered  and  highly competent.