A Secure Multi Proxy Multi Signature Scheme based on Factoring and DLP

Pankaj Sarde, Amitabh Banerjee

Abstract: Multi-proxy signatures allow the original signer to delegate his/her signing power to n proxy signers such that all proxy signers must cooperatively generate a valid proxy signature on behalf of the original signer. In this paper, we propose a secure multi proxy multi signature scheme based on factoring and discrete logarithm problem. Our scheme is more secure as compare to Hwang and Chens scheme.

Keywords: Proxy-Signature, Multisignature, Factoring, discrete logarithm problem