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Secured histories for presence systems

Rieffel, E and Biehl, J and Van Melle, B and Lee, AJ (2011) Secured histories for presence systems. In: UNSPECIFIED UNSPECIFIED, 446 - 456. ISBN 9781612846378

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As sensors become ever more prevalent, more and more information will be collected about each of us. A long-term research question is how best to support beneficial uses while preserving individual privacy. Presence systems are an emerging class of applications that support collaboration. These systems leverage pervasive sensors to estimate end-user location, activities, and available communication channels. Because such presence data are sensitive, to achieve wide-spread adoption, sharing models must reflect the privacy and sharing preferences of the users. To reflect users' collaborative relationships and sharing desires, we introduce CollaPSE security, in which an individual has full access to her own data, a third party processes the data without learning anything about the data values, and users higher up in the hierarchy learn only statistical information about the employees under them. We describe simple schemes that efficiently realize CollaPSE security for time series data. We implemented these protocols using readily available cryptographic functions, and integrated the protocols with FXPAL's myUnity presence system. © 2011 IEEE.


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Item Type: Book Section
Status: Published
CreatorsEmailPitt UsernameORCID
Rieffel, E
Biehl, JBIEHL@pitt.eduBIEHL0000-0002-3878-5208
Van Melle, B
Lee, AJadamlee@pitt.eduADAMLEE
Date: 15 December 2011
Date Type: Publication
Journal or Publication Title: Proceedings of the 2011 International Conference on Collaboration Technologies and Systems, CTS 2011
Page Range: 446 - 456
Event Type: Conference
DOI or Unique Handle: 10.1109/cts.2011.5928723
Schools and Programs: Dietrich School of Arts and Sciences > Computer Science
Refereed: Yes
ISBN: 9781612846378
Date Deposited: 27 Nov 2012 18:40
Last Modified: 06 Mar 2020 19:55


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