Improved threshold signature scheme for resisting conspiracy attack
Zhang Jianzhon · Computer Engineering and Applications Journal · 2013
An improved threshold signature scheme is proposed to overcome the weakness of Cai et al's scheme.The security of this scheme is analyzed.The results show that the improved scheme can not only resist conspiracy attacks and forgery attacks essentially,but also protect the personal broadcasted information with applying message recovery equation.In addition,it can realize the computing ability of group's public key by constructing a secure distributed key generation protocol.As a result,the improved scheme is securer than the former schemes.