Cryptanalysis and Improvement of Group Signature Scheme
Jianzhong Zhang · Jisuanji gongcheng · 2009
Cryptanalysis of a group signature scheme based on Chinese remainder theorem shows that it exists security flaws. Aiming at these flaws,this paper puts forward an improved group signature scheme. It realizes effective participation and revocation of group members under the condition that keep the group member secret key unaltered. Analysis results show that this scheme is secure and practicable.