Files Data Is Divided Into Equal Data Blocks

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

[16] R. D. Pietro and A. Sorniotti. Boosting efficiency and securityin proof of ownership for deduplication. In H. Y. Youm andY. Won, editors, ACM Symposium on Information, Computer andCommunications Security, pages 81–82. ACM, 2012.

c) What is the null and alternative hypothesis? Do the data results lead you to reject or fail to reject the null hypothesis?

Therefore the cloud server could not have any idea about the no of documents stored, length of the files . In addition ,when a data user request for any particular files, he receives the random number of blocks which contains the documents.

Miss. Nupoor M. Yawale, Prof. V. B. Gadichha “Third Party Auditing (TPA) for Data Storage Security in Cloud with RC5 Algorithm” IJARCSSE,

* Verify the integrity of the output of common cryptographic and hashing tools to determine whether an encrypted message is legitimate or whether it has been modified

This report illustrates the Message Digest 6 (MD6) hashing algorithm, how it functions, and the essentialness of a hashing function. Besides, it depicts the qualities of this hashing capacity over its predecessor, and its present shortcomings.

User can store their data on cloud and reveal from the local data storage and its maintenance. Cloud is in a distributive in nature includes shared pool of configuring resources both in hardware and software. As an increasing number of clients who store their

The first scenario that will be examined is looking at Cloud Computing from the perspective of security. Many small and medium sized businesses utilize the internet and Cloud Computing to conduct business and transfer money from system to system as well as report on financial accounting data. With that being the case, it is crucial that whatever system the business is working with pays very close attention to security needs to ensure that this data is protected from unauthorized sources viewing or manipulating it.

During the data authentication process the chain of custody must be maintained and in addition to the chain of custody the system date and time must be documented in doing this the evidence will bear the exact date and time each of the different files were created or modified. All officers should be sure to take care of the document, so it remains unchanged because then the court cannot label the evidence as hearsay. "The by-product of a machine operation which uses for its input ‘statements’ entered into the machine" and was "was generated solely by the electrical and mechanical operations of the computer and telephone equipment” (Civil action Group, 2006). There are legal guidelines that must be met in court like; computer hardware reliability, software reliability the manner in which the information was entered, accuracy of data, how data was stored and all precautions that were taken to ensure no evidence was lost. The software program should be presented to show how to works in processing the data and how accuracy is ensured this will result in the data being entered in court as any other record (Ashcroft, Daniels & Hart, 2004).

This section of paper includes why we need cloud computing as a security control tool against the cyber criminal activities and in how many ways it can be implemented. As we are living in a technical era, many aspects of our lives rely on the Internet and computers, including transportation, communications, government, medicine, finance and education. Consider how much of our personal information is stored either on our own computer or on someone else’s system.

Services such as, data storage and security, are provided by cloud computing over the internet. In cloud computing, users can pay for what they consume (Bisong & Rahman, An Overview of the Securtiy Concerns in Enterprise Cloud Computing, 2011). Cloud computing is an emerging information technology, which can make it easier for the users to manage their data. Cloud computing allows businesses to expand as new cloud-based models are being discussed and implemented as solutions (Bamiah & Brohi, 2011).

Cloud computing is a topic of which much is assumed. The average person recognizes the term “cloud computing” as having to do with their storage from their iPad or iPhone on the online storage area which syncs their Apple devices to their computer. This common cloud is called the iCloud. That is where common knowledge ends about this topic. However, upon further exploration, a deeper understanding is gained with greater explanation, and it is realized that cloud computing is something that is used all of the time on many levels of everyday technology. While the terminology remains cryptic to the mind of most people, the concepts behind the practical uses of cloud computing become quite clear. It is relatable and understandable. Upon this revelation, the iCloud is recognized as the tip of the preverbal iceberg when speaking about cloud computing. It is important to discuss and further understand the many types of cloud computing as well as the various applications to life through technology. This affects how information is stored online, computers are protected, information is secured, emails are processed, and many other factors that are taken for granted in the world of technology. Cloud computing is a general term used to describe how information is stored, utilized, and accessed over the internet. There is no cloud, but the word cloud gives the connotation of an abstract place which is known to exist but is too vast to touch or contain (Griffith,

The National Institute of Standards and Technology describes cloud storage as a model for enabling ubiquitous, on-demand network access to a shared configurable computing resources that can be swiftly accessed and released with minimal effort or service provider collaboration. It is comprised of a collection of hardware and software that allows the infrastructure of the cloud to work in a seamless, unified effort. Depending on the classification of information and the service provider the remote servers can be located within the same facility. The stored data is