A Specifiable-Verifier Group-Oriented Threshold Signature Scheme Based on the Elliptic Curve Cryptosystem

Abstract

Aimed at the group-oriented threshold signature, the research is devoted to the specifiable-verifier characteristic in a group-oriented cryptosystem. In light of the characteristic, the group of signers is provided with the limits of authority to specify the group of verifiers. Moreover, the elliptic curve cryptosystem is applied to the integration with the proposed scheme due to the superiority of low-amount operation, so that the performance can be raised to be more efficient than that by the other algorithms.