Literature Database Entry

limmer2005multiparty


Tobias Limmer, "Multiparty security on low-power mobile devices," Pre-Master's Thesis (Studienarbeit), School of Information and Communication Technology, Griffith University, Brisbane, Australia and Department of Computer Sciences, University of Erlangen-Nuremberg, December 2005. (Advisors: Ruben Gonzalez and Falko Dressler)

Abstract

Mobile computing is spreading rapidly through the use of low power mobile phones. An increasing number of applications are developed for these devices which exchange data with other devices. One important consideration is data security especially during wireless data transfer in this scenario. This is particularly important in secure groupware, collaborative or multiuser applications where simultaneous communication with multiple parties must be securely maintained. Unfortunately SSL as a point-to-point protocol is suboptimal and mobile phones place serious limitations on the use of cryptography in this scenario, because those devices offer very limited processing resources. Secure group protocols solve this problem by distributing identical keys to all group members, so that no message has to be encrypted twice. Their two most important parts are the key exchange protocol and its authentication method. This thesis will evaluate important aspects of key exchange protocols and determine bottlenecks in their execution. The calculation of operations in asymmetric cryptographic algorithms and message transfers in the wireless networks cause delays in the execution. So several asymmetric algorithms are tested in the environment of mobile phones. Based on those results, authenticated multiparty key agreement protocols with different designs are theoretically analyzed and compared with each other. The results are compared with a real world benchmark to determine their credibility.

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Tobias Limmer

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@phdthesis{limmer2005multiparty,
    author = {Limmer, Tobias},
    advisor = {Gonzalez, Ruben and Dressler, Falko},
    title = {{Multiparty security on low-power mobile devices}},
    year = {2005},
    month = {December},
    school = {School of Information and Communication Technology, Griffith University, Brisbane, Australia and Department of Computer Sciences, University of Erlangen-Nuremberg},
    type = {Pre-Master's Thesis (Studienarbeit)},
   }
   
   

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