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Analysis of Anonymity Services from a Tunable Perspective
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. (PriSec)
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. (PriSec)ORCID-id: 0000-0003-0778-4736
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. (DISCO)ORCID-id: 0000-0001-7311-9334
2007 (engelsk)Inngår i: The Future of Identity in the Information Society: Proceedings of the Third IFIP WG 9.2, 9.6/ 11.6, 11.7/FIDIS International Summer School on The Future of Identity in the Information Society, Karlstad University, Sweden / [ed] Simone Fischer-Huebner, Penny Duquenoy, Albin Zuccato, Leonardo Martucci, Boston: IFIP , 2007Konferansepaper, Oral presentation only (Fagfellevurdert)
Abstract [en]

In this paper, we investigate the tunable features provided by Mix-Nets and Crowds using a conceptual model for tunable secu- rity services. A tunable security service is deflned as a service that has been explicitly designed to ofier various security levels that can be se- lected at run-time. Normally, Mix-Nets and Crowds are considered to be static anonymity services, since they were not explicitly designed to provide tunability. However, as discussed in this paper, they both con- tain dynamic elements that can be used to achieve a tradeofi between anonymity and performance

sted, utgiver, år, opplag, sider
Boston: IFIP , 2007.
Serie
International Federation for Information Processing, ISSN 1571-5736 ; 262
Emneord [en]
Conceptual Model
HSV kategori
Identifikatorer
URN: urn:nbn:se:kau:diva-1918ISBN: 978-0-387-79026-8 (tryckt)OAI: oai:DiVA.org:kau-1918DiVA, id: diva2:5017
Konferanse
Proceedings of the IFIP WG 9.2, 9.6/11.7, 11.6/FIDIS Summer School on The Future of Identity in the Information Society, Karlstad University, Sweden, August 2007
Tilgjengelig fra: 2007-10-09 Laget: 2007-10-09 Sist oppdatert: 2018-06-04bibliografisk kontrollert
Inngår i avhandling
1. Towards Measurable and Tunable Security
Åpne denne publikasjonen i ny fane eller vindu >>Towards Measurable and Tunable Security
2007 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Many security services today only provides one security configuration at run-time, and cannot then utilize the trade-off between performance and security. In order to make use of this trade-off, tunable security services providing several security configurations that can be selected at run-time are needed. To be able to make intelligent choices on which security configuration to use for different situations we need to know how good they are, i.e., we need to order the different security configurations with respect to each security attribute using measures for both security and performance.

However, a key issue with computer security is that it is due to its complex nature hard to measure.

As the title of this thesis indicates, it discusses both security measures and tunable security services. Thus, it can be seen to consist of two parts. In the first part, discussing security measures for tunable security services, an investigation on the security implications of selective encryption by using guesswork as a security measure is made. Built on this an investigation of the relationship between guesswork and entropy. The result shows that guesswork,

after a minor redefinition, is equal to the sum of the entropy and the relative entropy.

The second part contributes to the area of tunable security services, e.g., services that provides several security configurations at run-time. In particular, we present the mobile Crowds (mCrowds) system,

an anonymity technology for the mobile Internet developed at Karlstad University, and a tunable encryption service, that is based on a selective encryption paradigm and designed as a middleware. Finally, an investigation of the tunable features provided by Mix-Nets and Crowds are done, using a conceptual model for tunable security services.

sted, utgiver, år, opplag, sider
Fakulteten för ekonomi, kommunikation och IT, 2007
Serie
Karlstad University Studies, ISSN 1403-8099 ; 2007:39
Emneord
tunable security, security measures, metrics, entropy, guesswork, privacy, anonymity, selective encryption
HSV kategori
Forskningsprogram
Datavetenskap
Identifikatorer
urn:nbn:se:kau:diva-1200 (URN)978-91-7063-142-9 (ISBN)
Presentation
2007-10-23, Sjöströmsalen, 1B 309, Karlstads universitet, Karlstad, 10:00
Opponent
Veileder
Tilgjengelig fra: 2007-10-09 Laget: 2007-10-09 Sist oppdatert: 2018-01-12

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Lundin, ReineLindskog, StefanBrunstrom, Anna

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Totalt: 162 treff
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