Byzantine set-union consensus using efficient set reconciliation - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles EURASIP Journal on Information Security Year : 2017

Byzantine set-union consensus using efficient set reconciliation


Applications of secure multiparty computation such as certain electronic voting or auction protocols require Byzantine agreement on large sets of elements. Implementations proposed in the literature so far have relied on state machine replication and reach agreement on each individual set element in sequence. We introduce set-union consensus, a specialization of Byzantine consensus that reaches agreement over whole sets. This primitive admits an efficient and simple implementation by the composition of Eppstein’s set reconciliation protocol with Ben-Or’s ByzConsensus protocol. A free software implementation of this construction is available in GNUnet. Experimental results indicate that our approach results in an efficient protocol for very large sets, especially in the absence of Byzantine faults. We show the versatility of set-union consensus by using it to implement distributed key generation, ballot collection, and cooperative decryption for an electronic voting protocol implemented in GNUnet. This is a revised and extended version of a paper published under the same title at ARES 2016.

Dates and versions

hal-01657397 , version 1 (06-12-2017)



Florian Dold, Christian Grothoff. Byzantine set-union consensus using efficient set reconciliation. EURASIP Journal on Information Security, 2017, 2017 (1), pp.1-18. ⟨10.1186/s13635-017-0066-3⟩. ⟨hal-01657397⟩
595 View
0 Download



Gmail Facebook X LinkedIn More