Abstract
We analyze the security of an inter-bank E-payment protocol based on quantum proxy blind signature, and find that there is a security leak in the quantum channels of this protocol, which gives a chance for an outside opponent to launch a special denial-of-service attack. Furthermore, we show that the dishonest merchant can succeed to change the purchase information of the customer in this protocol.
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Cai, XQ., Wei, CY. Cryptanalysis of an inter-bank E-payment protocol based on quantum proxy blind signature. Quantum Inf Process 12, 1651–1657 (2013). https://doi.org/10.1007/s11128-012-0477-5
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DOI: https://doi.org/10.1007/s11128-012-0477-5