Nt1310 Unit 3 Data Deduplication

A company allows its staffs in the same groupor department to store and share files in the cloud. By utilizing the cloud, the staffs can be completely released from the troublesome local data storage and maintenance.However, it also poses a significant risk to the confidentialityof those stored files. Specifically, the cloud serversmanaged by cloud providers are not fully trusted by userswhile the data files stored in the cloud may be sensitive andconfidential, such as business plans. To preserve dataprivacy, a basic solution is to encrypt data files, and thenupload the encrypted data into the cloud. Unfortunately,designing an efficient and secure data sharing scheme forgroups in the cloud is not an easy task due to the followingchallenging issues.First, identity privacy is one of the most significantobstacles for the wide

Objective 3 – A system that can ensure the safety of data from other possible circumstances that may result to corruption and loss of data.

In this Paper we propose a model for provable data possession (PDP) that allows a client to store the data at an entrusted server to check that the server contains the original data without retrieving it. This model produces probabilistic proof of possession by sampling random block sets from the server, which significantly decreases I/O costs. To verify the proof the client maintains a steady amount of metadata. The challenge/response protocol sends a small, constant amount of data, which reduces communication of the network. However, the PDP model for remote data checking supports more data sets in extensively-spreaded storage systems. We propose two provably-secure PDP schemes that are more efficient than previous solution, when compared

2. Our proposed plan has the capacity bolster dynamic gatherings productively. In particular, new allowed clients can straightforwardly unscramble information records transferred before their investment without reaching with information proprietors. Client repudiation can be effortlessly accomplished through a novel repudiation list without redesigning the mystery keys of the remaining clients. The size and calculation overhead of encryption are consistent and autonomous with the quantity of repudiated clients.

            In the past decade, rapid advances have been made in the field of cryptography.  These advances have brought considerable

We would like to provide the benefits of cloud computing without any troubles to propel in the direction it is designed for. This is to be achieved by preventing the owner's data from all risks associated and providing a cloud model that is more secure and efficient. The proposed model shall overcome the security risks defined by the security functions over cloud computing, as follows in (Passent M. et al., 2015):

From the viewpoint of data security, which has always been an important form of quality of service, Cloud computing surely poses new challenging security threats for number of reasons. Firstly, traditional cryptographic primitives for the purpose of data security protection cannot be straight accepted due to users loss control of data under cloud computing. Therefore, verification of correct data storage in the cloud must be attended without accurate knowledge of the whole data. Considering different kind of data for every user stored in the cloud and the requirement of long term continuous security of their data safety, the problem of checking correctness of data storage in the cloud becomes even more challenging.[1]

Usage of remote servers via internet to store, manage and process data instead of using a personal computer is known as Cloud computing. It’s a set of Information Technology services with the ability to scale up or down their service requirements. Most of the cloud services are provided by a third party service provider. In cloud computing, organizations can utilize IT services without in advance investment. Despite its benefits obtained from the cloud computing, the organizations are slow in accepting it due to security issues and challenges. Security is one of the major problems which hinder the growth of cloud. It’s not wise to handing over the important data to another company; such that clients need to be vigilant in understanding the risks of data infringement in this new environment. This paper discusses a detailed analysis of the cloud computing security issues and challenges. (Ayoleke)

Authentication is the only method which protects information or data of an individual or organization from a second party to access. Based upon the confidentiality of that particular data or information, the level of authentication depends. Now-a-days, all this data and information what we are talking about is getting digitized all around the world. For this digitized data or information to be secure, a proper authentication procedure must be set. This arise the need for an authentication secret which belongs to the category “Something we know” to come into picture. These secrets authenticate each secret holder as the authorized legitimate user to access their particular account. Technology is

Cloud computing has become so famous; there is much widespread news about the cloud these days. This is mainly because of the exponential shift of the business applications from traditional models of software towards the Internet, and now through mobile devices. Cloud computing is a model that uses the network of remote servers that has been hosted on the internet rather than on a specific hardware. This would enable a better shared pool for storing, accessing and processing of data. With the huge information being available in the internet, the security for cloud computing has been challenging and this paper would elucidates the security threats of cloud computing also stating the possible countermeasures for them.

Abstract— Data de-duplication is one of essential data com-pression techniques for eliminating duplicate copies of repeating data, and has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the confidentiality of sensitive data while supporting de-duplication, the convergent encryption technique has been proposed to encrypt the data before outsourcing. The main motivation behind using this technique is making convergent encryption practical to capably and consistently manage a huge number of convergent keys and achieving competent and consistent key management in secure de-duplication. At we first introduce a baseline approach in which each user holds an independent master key for encrypting

In this paper, we will first understand the basics of cloud computing and than proceed towards the need of cloud security. To understand the existing threats, we will study recent breaches like Dropbox and iCloud in detail. Based on these

However, the same or different users could save duplicated data under different encryption schemes at the cloud. Existing solutions for deduplication are vulnerable to brute-force attacks2 and can’t flexibly support data access control and revocation. Existing industrial solutions fail in encrypted data deduplication. Deduplication technology has become quite the staple in many data storage environments. But what makes it a good fit in one data center, may not be the case in another.

In this we discuss first about the no of pressing security challenges in Cloud Computing and outsourcing security, secure computation outsourcing challenges The we will focus on the primitive services, storing of data in the cloud by giving access to the owner outsourcing there data to cloud for getting the further benefits. The owner no longer having physical possession of the outsourced data raises on the storage correctness by big security concerns. So providing the access for the secure storage auditing in the cloud environment with this new approaches challenging, impressive and we can store the data by outsourcing security in the cloud computing and we

A stolen certificate can be a danger to secure internet communication because a bad actor can impersonate a legitimate entity and thus potentially stealing encrypted information (Gibson, 2014). There isn’t a good way to revoke certificates. This paper will analyze and study the best