Abstract:Recently, Gu et al. (2019, arXiv:1907.02656) and Zhang et al. (Quantum Inf Process (2019)18:336) independently pointed out that in Yang et al.'s quantum summation protocol (Quantum Inf Process (2018) 17:129), the party in charge of preparing the initial quantum states is able to steal other parties' private integer strings without being discovered by launching two special kinds of attack. In this paper, it is pointed out that in Liu et al.'s MQPC protocol, if the third party (TP) named Calvin launches the simi… Show more
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