Paper 2018/270

A Brief Retrospective Look at the Cayley-Purser Public-key Cryptosystem, 19 Years Later

Douglas R. Stinson

Abstract

The purpose of this paper is to describe and analyze the Cayley-Purser algorithm, which is a public-key cryptosystem proposed by Flannery in 1999. I will present two attacks on it, one of which is apparently new. I will also examine a variant of the Cayley-Purser algorithm that was patented by Slavin in 2008, and show that it is also insecure.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
cryptanalysis
Contact author(s)
dstinson @ uwaterloo ca
History
2018-03-14: received
Short URL
https://ia.cr/2018/270
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2018/270,
      author = {Douglas R.  Stinson},
      title = {A Brief Retrospective Look at the Cayley-Purser Public-key  Cryptosystem, 19 Years Later},
      howpublished = {Cryptology {ePrint} Archive, Paper 2018/270},
      year = {2018},
      url = {https://eprint.iacr.org/2018/270}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.