Some Proxy Signature and Designated verifier Signature Schemes over Braid Groups

TL;DR

This paper introduces five new cryptographic signature schemes based on braid groups, offering alternatives to traditional number theoretic methods with efficient implementation and security considerations.

Contribution

It proposes five novel signature schemes over braid groups, expanding cryptographic options beyond number theoretic approaches.

Findings

Five new signature schemes based on braid groups

Discussion of security aspects for each scheme

Efficient implementation potential

Abstract

Braids groups provide an alternative to number theoretic public cryptography and can be implemented quite efficiently. The paper proposes five signature schemes: Proxy Signature, Designated Verifier, Bi-Designated Verifier, Designated Verifier Proxy Signature And Bi-Designated Verifier Proxy Signature scheme based on braid groups. We also discuss the security aspects of each of the proposed schemes.