Location Management Strategies Increasing Privacy in Mobile Communication

Kesdoğan, Doğan; Federrath, Hannes; Jerichow, Anja; Pfitzmann, Andreas

doi:10.1007/978-1-5041-2919-0_4

Cited by 20 publications

(11 citation statements)

References 4 publications

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“…In a traditional direction of research, pseudonyms are used to protect against attackers that try linking several pseudonyms in order to construct movement profiles and comprehensive user traces. In early work, Kesdogan et al [33] proposed to use multiple short-lived, thus changing pseudonyms in mobile GSM networks. Beresford et al [4] combined the use of changing pseudonyms with an geographic abstraction of mixnets, to form so called mix-zones.…”

Section: Location Privacy Protectionmentioning

confidence: 99%

Multilaterally Secure Ubiquitous Auditing

Weber¹,

Mühlhäuser

2010

Intelligent Networking, Collaborative Systems and Applications

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Tracking information of individuals is a useful input to many Ubiquitous Computing (UbiComp) applications. Consider the example of a smart emergency management application: once mobile first responders are continuously tracked, a precise and safe coordination of rescue missions is possible, and also mission logs can be created for audit purposes. However, continuously tracking users and storing the data for later use is often in conflict with individual privacy preferences. This may ultimately lead to the non-acceptance and rejection of these new technologies by their users. In order to reconcile privacy and accountability requirements in location tracking systems, we introduce and evaluate the approach of using auditing mechanisms on two levels. We illustrate that, by employing carefully designed cryptographic mechanisms for selective pseudonym linkability based on efficient techniques of secure multiparty computation, it is possible to balance the conflicting interests to a certain extent. Our work, motivated by and applied to smart emergency management systems, is a step towards the realization of multilaterally secure and thus multilaterally acceptable UbiComp systems supporting collaborative work.

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Section: Location Privacy Protectionmentioning

confidence: 99%

Multilaterally Secure Ubiquitous Auditing

Weber¹,

Mühlhäuser

2010

Intelligent Networking, Collaborative Systems and Applications

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“…In the following years, several types of pseudonyms and applications have been identified. Kesdogan et al [22] proposed to use changing pseudonyms in mobile GSM networks. Concerning the provided degree of linkability, pseudonyms can be classified into transaction pseudonyms, role pseudonyms, relationship pseudonyms, rolerelationship pseudonyms and person pseudonyms.…”

Section: Related Workmentioning

confidence: 99%

Harnessing Pseudonyms with Implicit Attributes for Privacy-Respecting Mission Log Analysis

Weber

2009

2009 International Conference on Intelligent Networking and Collaborative Systems

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Abstract-Many applications in the area of collaborative work can be enhanced by tracking users regularly. Consider a future emergency management application, in which mobile first responders are continuously tracked in order to support a better coordination of the rescue missions and to create a mission log. However, continuous tracking of individuals and storing the data for later use is often in conflict with individual privacy preferences. Therefore, it is a challenge to deal with conflicting traceability and privacy protection requirements. A common way to implement some kind of privacy protection is to use pseudonyms instead of fixed IDs for each user. However, in order to build a multilateral secure and acceptable solution, a more complex system design w.r.t. to pseudonym linkability is required, that also allows third parties to analyze the logs for organizational and legal reasons.In this paper, we present our approach to deal with this issue: we propose to encode additional information into pseudonyms that are used in location tracking systems and stored in data logs. Our concept comprises both access rights for the user herself and implicit attributes that may be verified by third parties in a privacy-respecting manner. We introduce the cryptographic constructions, which employ cryptographically secure pseudorandom number generators, threshold cryptography and techniques for securely evaluating encrypted data. Moreover, in this paper, we sketch a practical application example in the area of emergency mission log analysis and discuss the main security properties of our concepts.

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“…This has developed into an active research field, with anonymous communications solutions developed for web browsing [12], messaging [3] and even GSM mobile telephony [8]. The related field of statistical disclosure control uses anonymity to protect the privacy of personal information stored in databases [14], and in the transport arena, Grutser and Grunwald used anonymity techniques to protect the location privacy of vehicle drivers [6].…”

Section: Related Workmentioning

confidence: 99%

Context-Derived Pseudonyms for Protection of Privacy in Transport Middleware and Applications

Evans

Beresford

2007

Fifth Annual IEEE International Conference on Pervasive Computing and Communications Workshops (PerComW'07)

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This paper outlines why context-aware transport applications necessarily record information about people and describes how we can use anonymity techniques to minimise the resulting invasion of privacy. In particular we: (i) describe how to generate unlinkable personal pseudonyms; (ii) describe a method of creating group pseudonyms (an opaque pseudonym representing several individuals); and (iii) describe how to store these pseudonyms safely in a database. We go on to present two sample transport applications which utilise our technique and suggest areas for future work.

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Location Management Strategies Increasing Privacy in Mobile Communication

Cited by 20 publications

References 4 publications

Multilaterally Secure Ubiquitous Auditing

Multilaterally Secure Ubiquitous Auditing

Harnessing Pseudonyms with Implicit Attributes for Privacy-Respecting Mission Log Analysis

Context-Derived Pseudonyms for Protection of Privacy in Transport Middleware and Applications

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