2026-07-21T23:47:44Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:13531 2024-03-06T10:31:01Z ddc:004 open_access

Implementation Study of Two Verifiable Delay Functions Attias, Vidal Vigneri, Luigi Dimitrov, Vassil Blockchain Distributed Ledger Verifiable Delay Function Cryptography Simulation RSA Proof of Work is a prevalent mechanism to prove investment of time in blockchain projects. However, the use of massive parallelism and specialized hardware gives an unfair advantage to a small portion of nodes and raises environmental and economical concerns. In this paper, we provide an implementation study of two Verifiable Delay Functions, a new cryptographic primitive achieving Proof of Work goals in an unparallelizable way. We provide simulation results and an optimization based on a multiexponentiation algorithm. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Vidal Attias and Luigi Vigneri and Vassil Dimitrov 2021 Is Part Of OASIcs, Volume 82, 2nd International Conference on Blockchain Economics, Security and Protocols (Tokenomics 2020) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.Tokenomics.2020.9 urn:nbn:de:0030-drops-135315 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.Tokenomics.2020.9 eng https://creativecommons.org/licenses/by/3.0/legalcode