English

Using shifted conjugacy in braid-based cryptography

Cryptography and Security 2007-05-23 v1

Abstract

Conjugacy is not the only possible primitive for designing braid-based protocols. To illustrate this principle, we describe a Fiat--Shamir-style authentication protocol that be can be implemented using any binary operation that satisfies the left self-distributive law. Conjugation is an example of such an operation, but there are other examples, in particular the shifted conjugation on Artin's braid group B\_oo, and the finite Laver tables. In both cases, the underlying structures have a high combinatorial complexity, and they lead to difficult problems.

Keywords

Cite

@article{arxiv.cs/0609091,
  title  = {Using shifted conjugacy in braid-based cryptography},
  author = {Patrick Dehornoy},
  journal= {arXiv preprint arXiv:cs/0609091},
  year   = {2007}
}