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Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009)

Qingdao, China, November 21-22, 2009

Editors: Feng Gao and Xijun Zhu

AP Catalog Number: AP-PROC-CS-09CN004

ISBN: 978-952-5726-06-0

Page(s): 58-61

A Provably Secure Proxy Signature Scheme with Multiple Threshold Values Based on Elliptic Curve

Zuhua Shao

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In this paper, we propose a threshold proxy signature scheme with multiple threshold values based on elliptic curve. The new scheme is simple, flexible and efficient since both the size of signature and verification computation do not depend on the number of actual proxy signers. Moreover, we show that the scheme is strongly unforgeable under the discrete logarithm assumption in the random oracle model.

Index Terms

elliptic curve cryptosystems, threshold proxy signature scheme, multi-signature

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