Paper 2018/939 Original: eprint.iacr.org/2018/939 ↗

The Proof is in the Pudding: Proofs of Work for Solving Discrete Logarithms

Marcella Hastings
Nadia Heninger
Eric Wustrow
Abstract

We propose a proof of work protocol that computes the discrete logarithm of an element in a cyclic group. Individual provers generating proofs of work perform a distributed version of the Pollard rho algorithm. Such a protocol could capture the computational power expended to construct proof-of-work-based blockchains for a more useful purpose, as well as incentivize advances in hardware, software, or algorithms for an important cryptographic problem. We describe our proposed construction and elaborate on challenges and potential trade-offs that arise in designing a practical proof of work.

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Available format(s)
PDF
Category
Applications
Publication info
Preprint.
History
2019-01-10: last updated
2018-10-05: published
Short URL
https://ia.cr/2018/939
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2018/939,
      author = {Marcella Hastings and Nadia Heninger and Eric Wustrow},
      title = {The Proof is in the Pudding: Proofs of Work for Solving Discrete Logarithms},
      howpublished = {Cryptology {ePrint} Archive, Paper 2018/939},
      year = {2018},
      url = {https://eprint.iacr.org/2018/939}
}
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