Cryptanalysis and repair of the multiverifier signature with verifier specification

摘要

The purpose of this paper is to show that the verification process of the Laih—Yen group-oriented, verifier-specified signature scheme is vulnerable. A closer look at the model of the multi-verifier, digital signature with verifier specification is given. Through this research deeper understanding and rigorous cryptanalysis of group-oriented signature verification is possible. Finally, the Laih—Yen scheme is repaired.