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International Conference on Information Science and Control Engineering

Security Analysis of Electronic Payment Protocols Based on Quantum Cryptography

Yi Liu, Xingtong Liu, Jian Wang, Lei Zhang, Chaojing Tang

Published Jul 1, 2017• 3 citations

Abstract

Electronic payment protocols play a vital role in electronic commerce to ensure the security of transaction process. Current electronic payment protocols based on complex mathematical problems will be vulnerable facing a quantum computer. In order to enhance the security against quantum computers, quantum cryptography is introduced into electronic payment protocols. Although the quantum cryptography is claimed to be unconditionally secure, Logical defects are still likely to cause serious problems. We introduced formal analysis to verify the security of electronic payment protocols based on quantum cryptography. Formal analysis methods can discover the vulnerabilities of protocols and help to improve the security of protocols. In this paper, we analyze an electronic payment protocol based on quantum cryptography and the result shows that the protocol is not secure even adopting unconditionally secure quantum cryptography. We found that both the accountability and fairness of the original protocol are not satisfied. Then we proposed an improved protocol to meet the requirement of accountability and fairness and verified it through formal analysis method.

DOI: 10.1109/icisce.2017.357

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