Braid Group Based Nominative Proxy Signature Scheme

Vandani Verma¹

¹ Amity Institute of Applied Sciences, Amity University, Noida, INDIA.

Correspondence should be addressed to: vandaniverma@yahoo.com.

Section:Research Paper, Product Type: Journal
Vol.5 , Issue.3 , pp.57-60, Jun-2017

Online published on Jun 30, 2017

Copyright © Vandani Verma . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Braid groups are highly non-commutative groups, they can be found in our daily life in jewellery, in hair braid and in many more. Nominative proxy signatures is a special type of proxy signatures in which the original signer delegates his signing rights to proxy signer and proxy signer on behalf of the original signer generates the signatures intended for nominee in such a way that only the nominee can verify the signatures and if required he is the only one to prove the validity of the signatures to third party. These signatures are different from designated verifier signatures as the validity of the signatures can be proved to third party when asked. In this paper, we combine the two concepts nominative proxy and braid groups and present the maiden nominative proxy signatures based on braid groups. We also analyse the security aspects of the proposed scheme and showed that the conjugacy decomposition problem, conjugacy search problem and base problem 1 in braids are not solvable for the proposed scheme.

Key-Words / Index Term :
nominative proxy signatures, braid group, conjugacy search problem

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