Review of Privacy Preserving Public Auditing Techniques

International Journal of Database Theory and Application, 2016

Cloud computing in its various forms allows users to store their information at remote location and reduce the burden at their local systems. Even though this is an advantage for users but there are also many drawbacks because of this remote storage. The main drawback which needs to be dealt with is security. Recently, security is the major concern which most of the cloud service providers are facing. The users store their information in remote location with the hope of maintaining the privacy and integrity of data. In order, to maintain the privacy and integrity of users' data auditing has to be done by the Cloud Service Providers (CSP). CSP uses the Third Party Auditor (TPA) for performing the auditing. The TPA performs auditing on behalf of the data owner using different auditing mechanisms. Many auditing mechanisms have been introduced in literature. Each mechanism varies from one another in one or more characteristics. In this paper we have provided a study on the different auditing mechanisms required to preserve the privacy and integrity of data in cloud. We have presented the advantages and flaws in each mechanism compared to another. Many auditing mechanisms are arising in literature with the aim to maintain the integrity of users' data and preserve the privacy. This paper remains as the basis for different auditing mechanisms that are arising in literature. With the help of auditing mechanisms the TPA can best satisfy the needs of the users.

IJARIIE, 2021

Nowadays storage of data is big problem because the huge generation of multimedia data likes images, audio, video etc. whose size is very large. For storing of these data size of conventional storage is not sufficient so we need remote storage such as cloud which is resilient infrastructure, reliable and high quality performance for the cloud users. In the cloud there is no direct physical control over the records because the cloud uses its resource pool for storing. Consequently data reliability fortification and auditing is not a modest task. The user prerequisites to depend on a Third Party Auditor (TPA) who is working as a public auditor for authenticating the data integrity and privacy. This paper presents the various auditing techniques of cloud computing for improving security and then future research challenges which need to be adopt by researchers to make system obvious.

International Journal of Security and Its Applications, 2017

Cloud computing provides a service based environment for data storage and resource sharing that are available to user through internet with on-demand basis. Thus, users can access their data across any geographical location at any time. Cloud environment also provides better scalability, flexibility, high performance, availability and less storage cost as compared to other physical storage of data. Maintaining data integrity and security in cloud environment is difficult especially, when the stored data is not completely reliable and trustworthy. However, the security of stored data is the major concerned for organizations and individual user to adopt cloud based environment. In this paper, we have proposed and enhanced the functionalities of third party auditor server to protect the availability and integrity of outsourced data in a cloud environment. The proposed approach uses the functionality such as, public verifiability, metadata generation, data dynamics, storage access point, encryption and decryption of data through RSA algorithm and IP range in case of private cloud. The proposed work also focuses on a solution to reliability, availability and integrity of data that are the major issues in the cloud adoption.

International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022

Cloud users can remotely store their data and appreciate the on demand high quality applications and services from a shared pool of configurable computing resources, regardless of local data storage and maintenance. However, the fact that users no longer have physical possession of the out sourced data makes the data integrity protection in Cloud computing a formidable task, especially for users with constrained computing resources. This paper study the problem of ensuring the integrity of data storage in Cloud Computing. In particular, wet ask of allow in gathird party auditor (TPA), on behalf of the cloud client, to verify the integrity of the dynamic datastored in the cloud. To securely introduce an effective third-party auditor (TPA), and determine various techniques and algorithms for strengthen the Security.

IJRCAR, 2015

The advantages of storing important data in cloud storage are cost effective by use of shared computing resources and low infrastructure costs and high availability. However, users is not aware with physical structure and location of the outsourced data, it makes the data integrity protection in cloud computing a challenging task, especially for users with limited computing resources. Moreover, users should be able to access cloud storage as if it is local disk storage, without worrying about the need to verify its integrity. Thus, provide auditability for cloud storage is very important, so that users can ask to a third-party auditor (TPA) to check the integrity of outsourced data and use without worried. To create a secure and effective TPA, the auditing process should not allowed any new vulnerabilities toward user data privacy, and introduce no additional online overheads to user. In this paper, we propose a secure cloud storage system that supports privacy-preserving public auditing. We allow TPA to perform audits for multiple users simultaneously and efficiently. Extensive security and performance analysis show the proposed schemes are provably secure and highly efficient

Cloud computing moves the application software and databases to the centralized large data centers, where the management of the data and services may not be fully trustworthy. This unique paradigm brings about many new security challenges, which have not been well understood. The problem of ensuring the integrity of data storage in Cloud computing we introduce TPA. The proposed system is based on HLA algorithm to support data integrity. It eliminates the involvement of the client through the auditing of whether his data stored in the cloud are indeed intact, which can be important in achieving economies of scale for Cloud Computing. Cloud computing is the long dreamed vision of computing as a utility, where users can remotely store their data into the cloud so as to enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources. By data outsourcing, users can be relieved from the burden of local data storage and maintenance. Thus, enabling public auditability for cloud data storage security is of critical importance so that users can resort to an external audit party to check the integrity of outsourced data when needed.

International Journal of Trend in Scientific Research and Development

By means of cloud storage, users can distantly store their data and enjoy the on-demand high-quality applications and services from a shared group of configurable computing resources, without the burden of local data storage and maintenance. However, the information that users no longer have physical ownership of the outsourced data makes the data integrity protection in cloud computing a difficult task, particularly for users with constrained computing resources. Moreover, users should be able to just use the cloud storage space as if it is local, without worrying about the need to verify its integrity. Thus, to enable public auditability for cloud storage is of serious importance so that users can rely on a third-party auditor (TPA) to verify the integrity of outsourced data and be worry free. To securely introduce a well-organized TPA, the auditing process should bring in no new vulnerabilities to user data privacy, and introduce no additional online burden to user. However; we propose a secure cloud storage system supporting privacy-preserving public auditing and monitoring. We additional would extend our result to enable the TPA to perform audits for multiple users simultaneously and efficiently, also integrity of data in cloud. Extensive security and performance analysis show the future schemes are provably secure and highly well-organized. Our beginning tryouts would be conducted on Amazon EC2 instance additional demonstrating the fast performance of the design.

In cloud computing, the way that organizations manage their data, due to its low cost and ubiquitous nature. Users access the application and enjoy the on-demand high quality information's and services from a shared pool of configurable computing resources, without the burden of local data storage and maintenance. This paper introduces a cloud database storage architecture, this approach prevents the risk of both external and internal attack to the outsourced data. the fact that users no longer have physical possession of the outsourced data makes the data integrity protection in Cloud Computing a formidable task, especially for users with constrained computing resources. Thus, enabling public auditability for cloud storage is of critical importance so that users can resort to a third party auditor (TPA) to check the integrity of outsourced data and be worry-free. Enhanced and secured third-party auditing, the auditing process should bring in no new vulnerabilities towards user data privacy, and introduce no additional online burden to user. In this paper, we propose a secure cloud storage system supporting privacy-preserving public auditing. furthermore, TPA is trusted and capable of accessing the cloud storage to performed auditing. extend our result to enable the TPA to perform audits for multiple users simultaneously and efficiently, Extensive security and performance analysis show the proposed schemes are provably secure and highly efficient. Our preliminary experiment conducted on Amazon EC2 instance further demonstrates the fast performance of the design.

International Journal of Computer Applications, 2016

Cloud computing is recent blooming technology which provides various services like storage, platform, applications etc. through internet. In cloud computing, data owner hosts (stores) their data on cloud servers and data users access those data through cloud servers any time and from any place. This leads to data outsourcing on cloud in high amount. But because of vast amount of data on cloud, it increases security challenges again on data integrity, authenticity and confidentiality in the form of data hacking. Here data owner has no idea about the whereabouts of storage locations. To check for the data loss, data owner has to be online continuously and monitor the data all the time; hence increases the overhead on data owner which owner surely wants to avoid because that's the reason of using cloud services. So the strong need of security mechanism, introduces the concept of Third Party Auditor (TPA) to the world. Cloud's public audit ability lets third party auditor (TPA) checks for data integrity. Here in this paper, various issues and challenges come across when data is stored on cloud, has been analyzed. Various papers discussed here, describes various techniques for secure cloud storage to provide privacy preserving public auditing.

2015

Cloud computing represents today's most surprising computing paradigm shift in information technology. Without taking burden of local data storage and maintenance by using cloud storage, users can remotely store their data and enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources. Most primary obstacles to its wide adoption are security and privacy. Shorter physical possession of the outsourced data of users makes the data integrity protection in Cloud. If the cloud storage is local then users should be able to just use it, without worrying about the need to verify its integrity. Enabling public auditability for cloud storage is of critical importance so that users can resort to a third party auditor (TPA) to check the integrity of outsourced data and be worry-free. To introduce an effective TPA with security the auditing process should brings it with no new vulnerabilities towards user data privacy and also introduces ...

2016

Cloud computing is the utilization of computing resources (hardware and software) that are pooled as services over the internet. Cloud storage is an essential facility of cloud computing [1], which allows data owners (owners) to shift information from their confined computing systems to the cloud. Cloud computing is being determined by a lot of which includes Google, Amazon and Yahoo also some traditional vendors including IBM, Intel and Microsoft [2]. Once data goes into cloud, the customer drops the control over the data. This lack of control raises new fearsome and difficult issues related to privacy and reliability of data placed in cloud [3]. Sometimes, cloud service providers may be fraudulent. They may remove the data that have not been used for a longer period of time to save the storage space and state that the data is still perfectly stored in the cloud [1].

Cloud computing is internet based computing which enables sharing of services. Many users place their data in the cloud. However, the fact that users no longer have physical possession of the possibly large size of outsourced data makes the data integrity protection in cloud computing a very challenging and potentially formidable task, especially for users with constrained computing resources and capabilities. So correctness of data and security is a prime concern. This paper studies the problem of ensuring the integrity and security of data storage in Cloud Computing. Security in cloud is achieved by signing the data block before sending to the cloud. Using Cloud Storage, users can remotely store their data and enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources, without the burden of local data storage and maintenance. However, the fact that users no longer have physical possession of the outsourced data makes the data integrity protection in Cloud Computing a formidable task, especially for users with constrained computing resources.

CERN European Organization for Nuclear Research - Zenodo, 2015

Cloud Computing is current trend which is considered as the next generation information technology enterprise architecture. It manages all form of software starting from databases to the application software. Cloud Storage, can remotely store data and provide the on-demand high quality applications and services from a shared pool of configurable computing resources, without the burden of local data storage and maintenance. This work helps us to have a third party auditor with integrity algorithm to protect the cloud. This enables public audit ability for cloud storage, a third party auditor (TPA) to check the integrity of outsourced data and relaxed that data is secure. In this paper, we propose a secure cloud storage system supporting privacy-preserving public auditing. We further extend this to enable the TPA to perform audits for no of users simultaneously with efficiency. Extensive security and performance analysis show the proposed schemes are provably secure and highly efficient.

… , 2010 Proceedings IEEE, 2010

Cloud Computing is the long dreamed vision of computing as a utility, where users can remotely store their data into the cloud so as to enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources. By data outsourcing, users can be relieved from the burden of local data storage and maintenance. However, the fact that users no longer have physical possession of the possibly large size of outsourced data makes the data integrity protection in Cloud Computing a very challenging and potentially formidable task, especially for users with constrained computing resources and capabilities. Thus, enabling public auditability for cloud data storage security is of critical importance so that users can resort to an external audit party to check the integrity of outsourced data when needed. To securely introduce an effective third party auditor (TPA), the following two fundamental requirements have to be met: 1) TPA should be able to efficiently audit the cloud data storage without demanding the local copy of data, and introduce no additional on-line burden to the cloud user; 2) The third party auditing process should bring in no new vulnerabilities towards user data privacy. In this paper, we utilize and uniquely combine the public key based homomorphic authenticator with random masking to achieve the privacy-preserving public cloud data auditing system, which meets all above requirements. To support efficient handling of multiple auditing tasks, we further explore the technique of bilinear aggregate signature to extend our main result into a multi-user setting, where TPA can perform multiple auditing tasks simultaneously. Extensive security and performance analysis shows the proposed schemes are provably secure and highly efficient.

2014

Cloud computing aims to enable end-users to easily create and use software without a need to worry about the technical implementations and the software's physical hosting location, hardware specifications, efficiency of data processing. Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage applications and services) .User can store that data remotely without maintaining local copy of data So the integrity of the data is major problem in cloud storage. Recently many works focuses on providing data dynamics and public verifiability for checking the remote integrity with the help of third party verifiers. Integrity in cloud computing is achieved by the Boneh-Lynn-Shacham (BLS) Signing algorithm that signing the data block before sending data to the cloud. To remove online burden of user we have public audit ability for cloud data storage. For that we use external audit party to check integrity of outsource data. We introduce third party auditor (TPA) for audit outsourced data without demanding local copy of user. No additional online burden for the cloud user and that can achieved by using Privacy-Preserving Public key based Homomorphic authenticator. Homomorphic authenticator efficiently supports public key based audit ability without having retrieval of the data blocks.