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Conference Papers Year : 2020

Foiling Sybils with HAPS in Permissionless Systems: An Address-based Peer Sampling Service

Abstract

Blockchains and distributed ledgers have brought renewed interest in Byzantine fault-tolerant protocols and decentralized systems, two domains studied for several decades. Recent promising works have in particular proposed to use epidemic protocols to overcome the limitations of popular Blockchain mechanisms , such as proof-of-stake or proof-of-work. These works unfortunately assume a perfect peer-sampling service, immune to malicious attacks, a property that is difficult and costly to achieve. We revisit this fundamental problem in this paper, and propose a novel Byzantine-tolerant peer-sampling service that is resilient to Sybil attacks in open systems by exploiting the underlying structure of wide-area networks.
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Dates and versions

hal-02965955 , version 1 (13-10-2020)

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Cite

Amaury Bouchra Pilet, Davide Frey, François Taïani. Foiling Sybils with HAPS in Permissionless Systems: An Address-based Peer Sampling Service. ISCC 2020 - IEEE Symposium on Computers and Communications, Jul 2020, Rennes, France. pp.1-7, ⟨10.1109/ISCC50000.2020.9219606⟩. ⟨hal-02965955⟩
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