A Practical E-Payment Protocol Based on Quantum Multi-Proxy Blind Signature*
Xufeng Niu, Jianzhong Zhang, Shu-Cui Xie, Bu-Qing Chen · Communications in Theoretical Physics · 2018
Abstract A practical E-payment protocol is presented in this paper. It is based on quantum multi-proxy blind signature. Adopting the techniques of quantum key distribution, one-time pad and quantum multi-proxy blind signature, our E-payment system could protect user’s anonymity as the traditional E-payment systems do, and also have unconditional security, which the classical E-payment systems can not provide. Furthermore, compared with the existing quantum E-payment systems, this practical system could not only support mobile E-payment transactions but also inter-bank transactions .