关键词: 门限签名 概率签名 双线性对 GDH群 椭圆曲线密码体制

Abstract: There exist the possibility of comparison attacks on the Boneh et al. ＇s short signature and the Boldyreva＇s threshold signature due to their schemes couldn＇t provide the property of probabilistic signature. This paper firstly gives its analysis. Then a t

Key words: Threshold signature, Probabilistic signature, Bilinear pairings, GDH group, Elliptic curve cryptosystem