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Persistent Data Security in Public Clouds

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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2016
Authors:
Sara Ibn El Ahrache, Hassan Badir, Abderrahmane Sbihi
10.5120/ijca2016912430

Sara Ibn El Ahrache, Hassan Badir and Abderrahmane Sbihi. Persistent Data Security in Public Clouds. International Journal of Computer Applications 155(9):31-36, December 2016. BibTeX

@article{10.5120/ijca2016912430,
	author = {Sara Ibn El Ahrache and Hassan Badir and Abderrahmane Sbihi},
	title = {Persistent Data Security in Public Clouds},
	journal = {International Journal of Computer Applications},
	issue_date = {December 2016},
	volume = {155},
	number = {9},
	month = {Dec},
	year = {2016},
	issn = {0975-8887},
	pages = {31-36},
	numpages = {6},
	url = {http://www.ijcaonline.org/archives/volume155/number9/26635-2016912430},
	doi = {10.5120/ijca2016912430},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}
}

Abstract

Recently, there has been increasing confidence for a favorable usage of big data drawn out from the huge amount of information deposited in a cloud computing system. Data kept on such systems can be retrieved through the network at the user’s convenience. However, the data that users send include private information, and therefore, information leakage from these data is now a major social problem. The usage of secret sharing schemes for cloud computing have lately been approved to be relevant in which users deal out their data to several servers. Notably, in a (k,n) threshold scheme, data security is assured if and only if all through the whole life of the secret the opponent cannot compromise more than k of the n servers. In fact, a number of secret sharing algorithms have been suggested to deal with these security issues. However, a limitation of these methods is that first they do not consider long term data storage and second they assume that data tempering only occurs at retrieval time, after the distribution of the shares has been correctly done. In this paper these two problems are addressed by presenting a novel scheme to ensure a perpetual secure data storage and retrieval.

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Keywords

cloud computing; data security; secret sharing; blinding; distributed digital signature; threshold cryptography.