Paper 2020/289

The security of Groups of Unknown Order based on Jacobians of Hyperelliptic Curves

Jonathan Lee

Abstract

Recent work using groups of unknown order to construct verifiable delay functions, polynomial commitment schemes and non interactive zero knowledge proofs have provoked fresh interest in the construction of efficient cryptographic groups of unknown order. It has been suggested that the Jacobian of hyperelliptic curves of genus 3 could be suitable for this purpose. Regrettably, efficient algorithms to compute the order of the Jacobian of a hyperelliptic curve are known. Concretely, it is unclear whether these groups are competitive with RSA groups or class groups at or above the 128 bit security level.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. MINOR revision.
Keywords
hyperelliptic curvesaccumulatorsunknown order groupsverifiable delay functionzksnark
Contact author(s)
jonatlee @ microsoft com
History
2020-03-06: received
Short URL
https://ia.cr/2020/289
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2020/289,
      author = {Jonathan Lee},
      title = {The security of Groups of Unknown Order based on Jacobians of Hyperelliptic Curves},
      howpublished = {Cryptology {ePrint} Archive, Paper 2020/289},
      year = {2020},
      url = {https://eprint.iacr.org/2020/289}
}
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