Browsing by Author "Varjonen, Samu"

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    Public Key Infrastructure for Peer-to-Peer Networks
    (2010) Varjus, Janne; Tarkoma, Sasu; Varjonen, Samu; Informaatio- ja luonnontieteiden tiedekunta; Perustieteiden korkeakoulu; School of Science; Aura, Tuomas
    In this thesis PKI approach to large scale P2P overlay network authentication is researched. A prototype is designed, implemented and analyzed by simulations. The goal is to create a system that provides the centralized control of authentication and secure communication between nodes with a small number of centralized servers. The goals were fulfilled and the prototype performs very well in analysis. The authentication system is based on X.509 certificates and the Pastry P2P overlay network. Signed tokens, which expire, are bound to the node certificates and function at the same time as routing table entries to P2P overlay. A token provides an easy way to revoke node credentials by not renewing it.
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    Sockets and Beyond: Assessing the Source Code of Network Applications
    (Aalto University, 2011) Komu, Miika; Varjonen, Samu; Tarkoma, Sasu; Gurtov, Andrei; Tietotekniikan laitos; Department of Computer Science; Perustieteiden korkeakoulu; School of Science