Solida: A Blockchain Protocol Based on Reconfigurable Byzantine Consensus

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

Paper 2017/1118

Solida: A Blockchain Protocol Based on Reconfigurable Byzantine Consensus

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

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.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. OPODIS 2017
Contact author(s): renling @ mit edu
History: 2017-11-24: received
Short URL: https://ia.cr/2017/1118
License: CC BY

BibTeX

@misc{cryptoeprint:2017/1118,
      author = {Ittai Abraham and Dahlia Malkhi and Kartik Nayak and Ling Ren and Alexander Spiegelman},
      title = {Solida: A Blockchain Protocol Based on Reconfigurable Byzantine Consensus},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/1118},
      year = {2017},
      url = {https://eprint.iacr.org/2017/1118}
}