Cryptanalysis of Two Threshold Signature Schemes in Standard Model
Meijuan Huang · Computer and Digital Engineering · 2013
To improve the computational efficient in the threshold signature scheme,Shi Xian-zhi et al.proposed an efficient threshold signature scheme in standard model in 2013,and a similar scheme was proposed by Zhang Jianzhong et al.in 2012.Two algorithms were constructed to attack the two schemes.In these attacks,the attacker could forge a valid threshold signature on any message on behalf of the user without knowing the signing key of the user.The causes of attacks were further analyzed in the end.