Cryptanalysis and improvement of group signature scheme based on Chinese remainder theorem
Lu Fei · Jisuanji yingyong yanjiu · 2011
Analysis of group signature scheme based on Chinese remainder theorem shows that the existing group signature schemes have some defects in forgery,frame-up,joint strike and the non-relevance.Through the Cryptanalysis of the defective schema,this paper provided an improved group signature scheme which contained the RSA and the Schnorr signature algorithm,and the group-center took part in the process of group signature's validation and open.Under the assumption of RSA and discrete Logarithm problem,it proves that the new scheme can not only effectively against forgery,frame-up and the joint strike,but also meet the requirement of the non-relevance in group signature.