New certificateless threshold proxy blind signature scheme

Abstract

Proxy blind signatures with extended properties are being thought highly of expandability and widely researched in recent years,because they have both the features of proxy signatures and blind signatures.In traditional proxy blind signature,proxy signer's authority is too big and it will change the original signer's will.The new scheme introduced threshold signature technology,based on secret share thoughts,and constructed threshold proxy blind signature with certificateless cryptography.The scheme implementation process with detailed analysis shows that this scheme is easy to realize,and verifies its security under the random oracle machine.It can be a good application in electronic voting and e-government affairs where user's privacy should be protected.