Blind signature scheme based on threshold without trusted center
Wang Li-jun · Jisuanji yingyong yanjiu · 2010
This paper presented a blind scheme for(t,n) threshold signature without a trusted center.Constructed the scheme on the basis of Shamir's perfect secret sharing scheme.The signature process included three phases: system initialization,partial signature generation and signature verification,and systemic signature generation and signature verification.In order to guarantee the distribution,a trusted center in the scheme did not need.Both the generation of the partial signature and the generation and verification of the distributed signature could be easily implemented.Results of the security analysis show that it is impossible for the adversary to forge the partial signature and systematic signature.There is no secret information leakage during the total signature process.The security and efficiency of the scheme make the scheme practical.