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Data outsourcing has become quite popular in recent years. While the rapid development of cloud storage service, it brings about many new security challenges. One of the biggest concerns with cloud data storage is that of data integrity at untrusted cloud servers. For example, when individual users store important data files in cloud servers, the data files may be damaged or corrupted because of cloud...
Cloud storage is a service provided by cloud service provider (CSP). More and more individuals and organizations accept the scheme and outsource their data to CSP seeking to reduce local storage burden. Since the outsourced files are no longer under the data owners' direct control and CSP is not trustworthy, it is necessary for data owners to check the integrity of their files outsourced to CSP. To...
With the growth of business, an enterprise would like to make its PSC(private storage cloud) approach an infrastructure service in a Partner/Public Cloud. In such PSCs, there are some new security issues, First, how to isolate the data stored in the PSC from internal and external attackers, Second, how to make secure intra-cloud data migration within an enterprise, Third, how to secure inter-cloud...
This paper presents a study on how to increase the BitTorrent Networkpsilas performance via deploying Helpers by modeling, simulating and analyzing. We first define some high-bandwidth, high-connection and controllable super nodes as Helpers, and then try to find the best way to deploy them. Unlike other researchers, we focus on combining the advantages of both multi-server systems and BitTorrent...
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