Attack-Resistant Spanning Tree Construction in Route-Restricted Overlay Networks

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Nodes in route-restricted overlays have an immutable set of neighbors, explicitly specified by their users. Popular examples include payment networks such as the Lightning network as well as social overlays such as the Dark Freenet. Routing algorithms are central to such overlays as they enable communication between nodes that are not directly connected. Recent results show that algorithms based on spanning trees are the most promising provably efficient choice. However, all suggested solutions fail to address how distributed spanning tree algorithms can deal with active denial of service attacks by malicious nodes. In this work, we design a novel self-stabilizing spanning tree construction algorithm that utilizes cryptographic signatures and prove that it reduces the set of nodes affected by active attacks. Our simulations substantiate this theoretical result with concrete values based on real-world data sets. In particular, our results indicate that our algorithm reduces the number of affected nodes by up to 74% compared to state-of-the-art attack-resistant spanning tree constructions.


Original languageEnglish
Title of host publication2019 38th Symposium on Reliable Distributed Systems (SRDS)
PublisherWiley-IEEE Press
Number of pages24859
ISBN (print)978-1-7281-4223-4
Publication statusPublished - 4 Oct 2019


Title2019 38th Symposium on Reliable Distributed Systems
Abbreviated titleSRDS 2019
Conference number38
Duration1 - 4 October 2019

External IDs

Scopus 85084122863