The Existence Of Privilege Set Threshold Multi - Agent Multi - Group Signature Scheme

In this paper,we mainly discuss the existing privilege set threshold multiple proxy multi-signature scheme. After analysising the threshold signature scheme with the pri-vilege set of Weidong Chen, Deng guo Feng and the threshold group signature schem-e with the privilege set of xionglin, Combining of the proxy signature idea, we put fo-rward a threshold multi-proxy signature scheme with a privilege set whether or not th-ere is a trust center. And then a kind of privilege set threshold multiple proxy multi-si-gnature scheme is designed.According to the security analysis, it shows that the proxy signature scheme with privilege set and threshold property has strong unforgeability, distinguishability and strong identifiability and so on.In order to strengthen the tracking ability of signature identity,we increase a identity recognition function in the signature.