Harnessing encrypted data in cloud for secure and efficient image sharing from mobile devices

Helei Cui, Xingliang Yuan, Cong Wang

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

20 Citations (Scopus)


In storage outsourcing, highly correlated datasets can occur commonly, where the rich information buried in correlated data can be useful for many cloud data generation/dissemination services. In light of this, we propose to enable a secure and efficient cloud-assisted image sharing architecture for mobile devices, by leveraging outsourced encrypted image datasets with privacy assurance. Different from traditional image sharing, the proposed design aims to save the transmission cost from mobile clients, by directly utilizing outsourced correlated images to reproduce the image of interest inside the cloud for immediate dissemination. While the benefits are obvious, how to leverage the encrypted image datasets makes the problem particular challenging. To tackle the problem, we first propose a secure and efficient index design that allows the mobile client to securely find from the encrypted image datasets the candidate selection pertaining to the image of interest for sharing. We then design two specialized encryption mechanisms that support the secure image reproduction inside the cloud directly from the encrypted candidate selection. We formally analyze the security strength of the design. Our experiments show that up to 90% of the transmission cost at the mobile client can be saved, while achieving all service requirements and security guarantees.

Original languageEnglish
Title of host publication2015 IEEE Conference on Computer Communications, INFOCOM 2015
Subtitle of host publicationKowloon, Hong Kong 26 April – 1 May 2015
EditorsSonia Fahmy , Baochun Li , John Chi Shing Lui
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages9
ISBN (Electronic)9781479983810
ISBN (Print)9781479983827
Publication statusPublished - 2015
Externally publishedYes
EventIEEE Conference on Computer Communications 2015 - Kowloon, Hong Kong
Duration: 26 Apr 20151 May 2015
Conference number: 34th
https://infocom2015.ieee-infocom.org/ (Conference website)


ConferenceIEEE Conference on Computer Communications 2015
Abbreviated titleIEEE INFOCOM 2015
Country/TerritoryHong Kong
Internet address

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