Cryptanalysis of Huang-Zhang Threshold Signature Scheme
Qi You Xie · Computer Engineering and Applications Journal · 2006
Based on discrete logarithm and quadratic residue,Huang-Zhang(2005) proposed a secure and efficient threshold signature scheme.Two attacks on Huang-Zhang's scheme are proposed to show that their scheme is insecure,anyone can forge a valid threshold signature.How to design a secure and efficient threshold signature scheme still need to be further researched.