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

Douglas R. Stinson

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arXiv · 1803.05004

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

Douglas R. Stinson

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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.

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Douglas R. Stinson. 2018-03-13. A Brief Retrospective Look at the Cayley-Purser Public-key Cryptosystem, 19 Years Later. https://arxiv.org/abs/1803.05004

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