Cryptology ePrint Archive: Report 2007/398

A Short Signature Scheme in the Standard Model

Li Kang and Xiaohu Tang and Xianhui Lu and Jia Fan

Abstract: In this paper, by elaborately choosing the parameters of Waters Hash function, we propose a new efficient signature scheme. It is shown that the scheme is secure against strongly unforgeable chosen-message attacks in the standard model under Computational Diffie-Hellman (CDH) assumption. Further, among all the known secure signatures in the standard model, our scheme is the shortest one and has the efficient security reduction as well.

Category / Keywords: public-key cryptography /

Date: received 6 Oct 2007

Contact author: kangli at mars swjtu edu cn

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Version: 20071014:185822 (All versions of this report)

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