Data inspection and security in the duplication of the BigCloud data

Abstract

In this work, we study the problem of integrity inspection and secure duplication on cloud data. Specifically, aiming at  Achieving both data integrity and duplication in cloud, wepropose two secure systems, namely BigCloud. BigCloud introduces an inspection entity with a maintenance of a  MapReduce cloud, which helps clients generate data tags before  uploading as well as audit the integrity of data having been stored  in cloud. Compared with previous work, the computation by user in BigCloud is greatly reduced during the file uploading and  inspection phases. BigCloud+ is designed motivated by the fact that customers always want to encrypt their data before uploading,  and enables integrity inspection and secure duplication on  encrypted data.