Solida: A blockchain protocol based on reconfigurable Byzantine consensus

Ittai Abraham, Dahlia Malkhi, Kartik Nayak, Ling Ren, Alexander Spiegelman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The decentralized cryptocurrency Bitcoin has experienced great success but also encountered many challenges. One of the challenges has been the long confirmation time. Another challenge is the lack of incentives at certain steps of the protocol, raising concerns for transaction withholding, selfish mining, etc. To address these challenges, we propose Solida, a decentralized blockchain protocol based on reconfigurable Byzantine consensus augmented by proof-of-work. Solida improves on Bitcoin in confirmation time, and provides safety and liveness assuming the adversary control less than (roughly) one-third of the total mining power.

Original languageEnglish (US)
Title of host publication21st International Conference on Principles of Distributed Systems, OPODIS 2017
EditorsJames Aspnes, Joao Leitao, Alysson Bessani, Pascal Felber
PublisherSchloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing
ISBN (Electronic)9783959770613
DOIs
StatePublished - Mar 1 2018
Externally publishedYes
Event21st International Conference on Principles of Distributed Systems, OPODIS 2017 - Lisboa, Portugal
Duration: Dec 18 2017Dec 20 2017

Publication series

NameLeibniz International Proceedings in Informatics, LIPIcs
Volume95
ISSN (Print)1868-8969

Conference

Conference21st International Conference on Principles of Distributed Systems, OPODIS 2017
Country/TerritoryPortugal
CityLisboa
Period12/18/1712/20/17

Keywords

  • Blockchain
  • Byzantine fault tolerance
  • Cryptocurrency
  • Reconfiguration

ASJC Scopus subject areas

  • Software

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