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OPoR: enabling proof of retrievability in cloud computing with resource-constrained devices
dc.contributor.author | Li, Jin |
dc.contributor.author | Tan, xiao |
dc.contributor.author | Chen, Xiaofeng |
dc.contributor.author | Wong, Duncan |
dc.contributor.author | Xhafa Xhafa, Fatos |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Ciències de la Computació |
dc.date.accessioned | 2016-03-02T15:33:23Z |
dc.date.available | 2016-03-02T15:33:23Z |
dc.date.issued | 2015 |
dc.identifier.citation | Li, J., Tan, X., Chen, X., Wong, D., Xhafa, F. OPoR: enabling proof of retrievability in cloud computing with resource-constrained devices. "IEEE Transactions on Cloud Computing", 2015, vol. 3, núm. 2, p. 195-205. |
dc.identifier.issn | 2168-7161 |
dc.identifier.uri | http://hdl.handle.net/2117/83721 |
dc.description | (c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. |
dc.description.abstract | 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. In this work, we study the problem of ensuring the integrity of data storage in cloud computing. To reduce the computational cost at user side during the integrity verification of their data, the notion of public verifiability has been proposed. However, the challenge is that the computational burden is too huge for the users with resource-constrained devices to compute the public authentication tags of file blocks. To tackle the challenge, we propose OPoR, a new cloud storage scheme involving a cloud storage server and a cloud audit server, where the latter is assumed to be semi-honest. In particular, we consider the task of allowing the cloud audit server, on behalf of the cloud users, to pre-process the data before uploading to the cloud storage server and later verifying the data integrity. OPoR outsources and offloads the heavy computation of the tag generation to the cloud audit server and eliminates the involvement of user in the auditing and in the pre-processing phases. Furthermore, we strengthen the proof of retrievability (PoR) model to support dynamic data operations, as well as ensure security against reset attacks launched by the cloud storage server in the upload phase. |
dc.format.extent | 11 p. |
dc.language.iso | eng |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
dc.subject | Àrees temàtiques de la UPC::Informàtica::Seguretat informàtica |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Internet |
dc.subject.lcsh | Cloud computing |
dc.subject.lcsh | Data integrity |
dc.subject.other | cloud storage |
dc.subject.other | auditing |
dc.subject.other | integrity |
dc.subject.other | proof of retrievability |
dc.title | OPoR: enabling proof of retrievability in cloud computing with resource-constrained devices |
dc.type | Article |
dc.subject.lemac | Computació en núvol |
dc.subject.lemac | Dades -- Mesures de seguretat |
dc.identifier.doi | 10.1109/TCC.2014.2366148 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6942233 |
dc.rights.access | Open Access |
local.identifier.drac | 17549573 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Li, J.; Tan, X.; Chen, X.; Wong, D.; Xhafa, F. |
local.citation.publicationName | IEEE Transactions on Cloud Computing |
local.citation.volume | 3 |
local.citation.number | 2 |
local.citation.startingPage | 195 |
local.citation.endingPage | 205 |
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