A Threshold Signature Scheme Based on Ohta-Okamoto Signature
Rui Deng · Zhanjiang Haiyang Daxue xuebao · 2005
An new (t,n) threshold signature scheme is proposed based on the modified the Ohta-Okamoto's signature.The scheme has the property of verification and can prevent inside member conspiracy attack.The verifier can verify the group signature easily and the verification time of group signature is equivalent to that of an individual signature.The security of this scheme base on factorization of big integer,therefore,the scheme is secure for calculation.