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Collaborative Verifiable Delay Functions

  • 2021
  • OriginalPaper
  • Chapter
Published in:
Authors
Liam Medley
Elizabeth A. Quaglia
Published in
Information Security and Cryptology
Publisher
Springer International Publishing

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Abstract

The chapter introduces Collaborative Verifiable Delay Functions (coVDFs), a cryptographic primitive where multiple parties compute a delay function together. It extends traditional VDFs to a multi-party setting, enabling applications like collaborative work, fair auctions, and public randomness beacons. The authors define coVDFs formally, categorizing them into sequential and parallel types, and introduce new security properties such as traceability and robustness. They present two constructions: one based on repeated squaring and another on gossip and sequential hashing. The chapter also discusses practical applications and provides security proofs, making it a significant contribution to the field of cryptography and blockchain technology.
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previous chapter Privacy Preserving OpenPGP Public Key Distribution with Spamming Resistance
next chapter SMCOS: Fast and Parallel Modular Multiplication on ARM NEON Architecture for ECC
Title
Collaborative Verifiable Delay Functions
Authors
Liam Medley
Elizabeth A. Quaglia
Copyright Year
2021
Book
Information Security and Cryptology

Print ISBN: 978-3-030-88322-5

Electronic ISBN: 978-3-030-88323-2

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-030-88323-2_27
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