Thursday 28th of March 2024
 

Formalized Security Model of Identity-Based Multi-Proxy Signature


Wang Tao and Li Mingxiang

Multi-proxy signature is an extension of the primitive basic proxy signature.. In a multi-proxy signature scheme, an original signer could delegate his signing rights to a group of proxy signers. And only the cooperation of all the proxy signers can generate the proxy signature on behalf of the original signer. Combining multi-proxy signature with identity-based cryptography, some identity-based multi-proxy signature schemes have been proposed. But to date, no formalized security model has been provided for identity-based multi-proxy signature schemes. In this paper, the authors give the formal definition of identity-based multi-proxy signature schemes and formalize a notion of security for them.

Keywords: multi-proxy signature; identity-based signature; identity-based multi-proxy signature; security model

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ABOUT THE AUTHORS

Wang Tao
Wang Tao, born in 1973, associate professor. He received his M.S. from the Beijing University of Technology in January 2008. And he is the head of the department of information management and engineering of the Hebei Finance University for the present. So far, he has published 5 research papers. His current research interests include network security and wireless sensor network.

Li Mingxiang
Li Mingxiang, born in 1968, associate professor. He received his Ph.D. from the University of Science and Technology Beijing in January 2009. Nowadays, he is a researcher of the Hebei Science and Technology Financial Critical Laboratory. His current research interests include cryptography and cloud computing.


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