Verifiable delay functions

Dan Boneh, Joseph Bonneau, Benedikt Bünz, Ben Fisch

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

Abstract

We study the problem of building a verifiable delay function (VDF). A VDF requires a specified number of sequential steps to evaluate, yet produces a unique output that can be efficiently and publicly verified. VDF s have many applications in decentralized systems, including public randomness beacons, leader election in consensus protocols, and proofs of replication. We formalize the requirements for VDF s and present new candidate constructions that are the first to achieve an exponential gap between evaluation and verification time.

Original languageEnglish (US)
Title of host publicationAdvances in Cryptology – CRYPTO 2018 - 38th Annual International Cryptology Conference, 2018, Proceedings
EditorsAlexandra Boldyreva, Hovav Shacham
PublisherSpringer Verlag
Pages757-788
Number of pages32
ISBN (Print)9783319968834
DOIs
StatePublished - 2018
Event38th Annual International Cryptology Conference, CRYPTO 2018 - Santa Barbara, United States
Duration: Aug 19 2018Aug 23 2018

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10991 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other38th Annual International Cryptology Conference, CRYPTO 2018
CountryUnited States
CitySanta Barbara
Period8/19/188/23/18

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Boneh, D., Bonneau, J., Bünz, B., & Fisch, B. (2018). Verifiable delay functions. In A. Boldyreva, & H. Shacham (Eds.), Advances in Cryptology – CRYPTO 2018 - 38th Annual International Cryptology Conference, 2018, Proceedings (pp. 757-788). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10991 LNCS). Springer Verlag. https://doi.org/10.1007/978-3-319-96884-1_25