PROXY BLIND SIGNATURE SCHEME FOR ID-BASED DESIGNATED VERIFIER

In the proxy blind signature scheme, the problem that how to prevent the counterfeit signature of proxy is urgently to be solved. In this paper, we propose a new scheme for id-based designated verifier-proxy blind signature by using bilinear map, which combines proxy signature and blind signature. In this scheme, it can only allow the designated person to verify the signature's validity, which can prevent the signer from forging the signature and protect the rights of proxy signer.. Through analyzing the scheme, it proves that the scheme meets the blind properties of the proxy blind multi-signature, such as blindness, non-forgeability, and distinguish ability.