Data degradation to enhance privacy for the Ambient Intelligence

H.J.W. van Heerde, N.L.G. Anciaux

Abstract

Increasing research in ubiquitous computing techniques towards the development of an Ambient Intelligence raises issues regarding privacy. To gain the required data needed to enable application in this Ambient Intelligence to offer smart services to users, sensors will monitor users' behavior to fill personal context histories. Those context histories will be stored on database/information systems which we consider as honest: they can be trusted now, but might be subject to attacks in the future. Making this assumption implies that protecting context histories by means of access control might be not enough. To reduce the impact of possible attacks, we propose to use limited retention techniques. In our approach, we present applications a degraded set of data with a retention delay attached to it which matches both application requirements and users privacy wishes. Data degradation can be twofold: the accuracy of context data can be lowered such that the less privacy sensitive parts are retained, and context data can be transformed such that only particular abilities for application remain available. Retention periods can be specified to trigger irreversible removal of the context data from the system.
Original languageUndefined
Place of PublicationEnschede
PublisherCentrum voor Telematica en Informatie Technologie
Number of pages8
StatePublished - Dec 2006

Publication series

NameCTIT Technical Report Series
PublisherCentre for Telematics and Information Technology, University of Twente
No.11/06-74
ISSN (Print)1381-3625

Fingerprint

Ubiquitous computing
Access control
Information systems
Removal
Degradation
Sensors

Keywords

  • IR-66723
  • METIS-238724
  • EWI-8551

Cite this

van Heerde, H. J. W., & Anciaux, N. L. G. (2006). Data degradation to enhance privacy for the Ambient Intelligence. (CTIT Technical Report Series; No. 11/06-74). Enschede: Centrum voor Telematica en Informatie Technologie.

van Heerde, H.J.W.; Anciaux, N.L.G. / Data degradation to enhance privacy for the Ambient Intelligence.

Enschede : Centrum voor Telematica en Informatie Technologie, 2006. 8 p. (CTIT Technical Report Series; No. 11/06-74).

Research output: ProfessionalReport

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van Heerde, HJW & Anciaux, NLG 2006, Data degradation to enhance privacy for the Ambient Intelligence. CTIT Technical Report Series, no. 11/06-74, Centrum voor Telematica en Informatie Technologie, Enschede.

Data degradation to enhance privacy for the Ambient Intelligence. / van Heerde, H.J.W.; Anciaux, N.L.G.

Enschede : Centrum voor Telematica en Informatie Technologie, 2006. 8 p. (CTIT Technical Report Series; No. 11/06-74).

Research output: ProfessionalReport

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van Heerde HJW, Anciaux NLG. Data degradation to enhance privacy for the Ambient Intelligence. Enschede: Centrum voor Telematica en Informatie Technologie, 2006. 8 p. (CTIT Technical Report Series; 11/06-74).