A generalized proxy signature scheme based on the RSA cryptosystem

Authors:
Qingshui Xue;Zhenfu Cao;Haifeng Qian
Affiliations:
Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, P.R.C.;Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, P.R.C.;Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai, P.R.C.
Venue:
PDCAT'04 Proceedings of the 5th international conference on Parallel and Distributed Computing: applications and Technologies
Year:
2004

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Abstract

In proxy signature schemes, original signers delegate proxy signers to sign messages on behalf of original signers. Based on the RSA cryptosystem, a generalized proxy signature scheme is proposed. The proposed scheme can resist all of known possible attacks such as forgery attacks. In the random oracle model, the scheme can provide security properties of strong unforgeability, verifiability, strong undeniability, strong identifiability, distinguishability and prevention of misuse of proxy signing right.