[Resource Topic] 2004/302: Security of Wang-Li Threshold Signature Scheme

Welcome to the resource topic for 2004/302

Security of Wang-Li Threshold Signature Scheme

Authors: Lifeng Guo


In 2003, Wang et al.[1] proposed a
(t, n) threshold signature scheme without a trusted party based
on the discrete logarithm problem. In this paper, according to
[5]'s attacking method, we show that there are still some security
leaks in that scheme, and give some methods of forgery attack.
Moreover, we point out this scheme is vulnerable to universal
forgery by an insider attacker under reasonable assumptions.

ePrint: https://eprint.iacr.org/2004/302

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