Some Proxy Signature and Designated verifier Signature Schemes over Braid Groups

Preprint English OPEN
Lal, Sunder ; Verma, Vandani (2009)
  • Subject: Computer Science - Cryptography and Security

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.
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