Dynamic trust models for ubiquitous computing environments

C. English, P. Nixon, S. Terzis, A. McGettrick, H. Lowe

Research output: Contribution to conferencePaper

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Abstract

A significant characteristic of ubiquitous computing is the need for interactions of highly mobile entities to be secure: secure both for the entity and the environment in which the entity operates. Moreover, ubiquitous computing is also characterised by partial views over the state of the global environment, implying that we cannot guarantee that an environment can always verify the properties of the mobile entity that it has just received. Secure in this context encompasses both the need for cryptographic security and the need for trust, on the part of both parties, that the interaction is functioning as expected. In this paper we make a broad assumption that trust and cryptographic security can be considered as orthogonal concerns (i.e. an entity might encrypt a deliberately incorrect answer to a legitimate request). We assume the existence of reliable encryption techniques and focus on the characteristics of a model that supports the management of the trust relationships between two entities during an interaction in a ubiquitous environment.
Original languageEnglish
Number of pages4
Publication statusPublished - 1 Oct 2002
EventFirst Workshop on Security in Ubiquitous Computing at the Fourth Annual Conference on Ubiquitous Computing (Ubicomp2002) - Gothenburg, Sweden
Duration: 29 Sep 20021 Oct 2002

Conference

ConferenceFirst Workshop on Security in Ubiquitous Computing at the Fourth Annual Conference on Ubiquitous Computing (Ubicomp2002)
CityGothenburg, Sweden
Period29/09/021/10/02

Keywords

  • ubiquitous computing
  • encryption
  • security
  • software

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    English, C., Nixon, P., Terzis, S., McGettrick, A., & Lowe, H. (2002). Dynamic trust models for ubiquitous computing environments. Paper presented at First Workshop on Security in Ubiquitous Computing at the Fourth Annual Conference on Ubiquitous Computing (Ubicomp2002), Gothenburg, Sweden, .