Digital signature, as an important crypto-graphic primitive, has been widely used in many ap-plication scenarios, such a......

Ju et al proposed a certificateless signature scheme with instantaneous revocation by introducing security mediator (SEM......

针对现有的无证书签密方案存在安全性不高、计算效率较低等诸多不足，在Sharmila签密方案的基础上，设计了一种新的无双线性对的无证书......

已有的无双线性对的无证书签密方案，大都存在着机密性漏洞和签名选择性伪造问题。针对此问题，基于有限乘法交换群上的离散对数难题，提......