Quantum Multi-proxy Blind Signature Scheme Based on Four-Qubit Cluster States

Abstract

An arbitrated quantum multi-proxy blind signature scheme, which is based on four-qubit cluster states, is proposed in this paper. This scheme satisfies all the characteristics of a multi-proxy blind signature scheme. To guarantee the security of this scheme, some quantum technologies such as quantum key distribution (QKD) protocol, eavesdropping check, quantum one-time pad and quantum secure direct communication (QSDC) protocol are used. Analysis results show that our scheme is secure.