Restricted blind signature system, the signature device, the receiving device signature, signature presentation device, the signature verification device

摘要

The aims with high safety that can prove safety without assuming a random oracle model, we propose a restricted blind signature system, and its configuration, the signature presentation device, the present invention, the public key When a blind secret identifier, and blind the public identifier, and a blind signature, a random number is input to the signature verification device, and to indicate that the data is input to the signature presentation device to "legitimate" , I want to output the "unfair" in the case of the other.