Privacy preservation and public auditing for cloud data using ASS in Multi-cloud

Abstract

Cloud computing is the new business paradigm introduced in the IT market in the current decade providing the customers with the option to pay for the amount of service utilized. The use of cloud computing has increased rapidly in many organizations.Ensuring security of data in a cloud is a major factor in the cloud computing environment, as users often store fragile information in cloud storage. Public auditing on shared data stored in the cloud is done by exploiting Aggregate Signature Scheme. With this mechanism, the identity of the signer of various blocks of shared data is kept private from public verifiers, who are able to verify efficiently the integrity of shared data without retrieving the entire file. However traceability is a major issue. A Multi-clouds Database Model (MCDB) which is based on Multi-clouds service providers instead of using single cloud service provider such as in Amazon cloud service is used to implement traceability. Also, dealing with single cloud providers is predicted to become less popular with customers due to risks of service availability failure and the possibility of malicious insiders in the single cloud. A movement towards multi-clouds is highly efficient and this system would also check for the data's which are attacked by malicious users, with short time and cost requirement.

Content arrangement characteristic based encryption in cloud using public auditing for data management

“…If the client is not legitimate he/she can't get the record since the haphazardly produced key is basic for the document. [8] Xia et al, (2016) followed tree-based index structure. They also proposed a "Greedy Depth-first Search" algorithm for providing effective multi-keyword ranked search.…”

Enhanced Privacy Preservation of Cloud Data by using ElGamal Elliptic Curve (EGEC) Homomorphic Encryption Scheme

“…Nowadays, cloud computing is one among the hot topics in both industry and academic research [3] like storage, security, load balancing, task assignment, etc. Secure data access and maintaining the confidentiality of data stored in a cloud are the most important research areas in cloud computing.…”

Data Security, Privacy, Availability and Integrity in Cloud Computing: Issues and Current Solutions

“…When an owner of data partions their data and sign them and distribute them to multi-clouds and share them with others, the third party could get the identity of the signer since it is needed when auditing. Therefore, they proposed this solution to prevent violating the privacy of the owner by knowing their identity by using creating homomorphic authenticators by using aggregate signatures [73]. Aggregate signature scheme is a group of signatures that are aggregated to one digital signature [74].…”

“…In [73], SUGANTHI et al proposed a solution for protecting the privacy of the signer of that data from a third party auditor while auditing process. When an owner of data partions their data and sign them and distribute them to multi-clouds and share them with others, the third party could get the identity of the signer since it is needed when auditing.…”