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arXiv · 2307.10908

Improvements on "Multi-Party Quantum Summation without a Third Party based on $d$-Dimensional Bell States"

Xiaobing Li·Jiale Hou·Haozhen Situ·Cai Zhang
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Abstract

In 2021, Wu et al. presented a multi-party quantum summation scheme exploiting the entanglement properties of d-dimensional Bell states (Wu et al. in Quantum Inf Process 20:200, 2021). In particular, the authors proposed a three-party quantum summation protocol and then extended their work to a multi-party case. It is claimed that their protocol is secure against outside and participants' attacks. However, this work points out that Wu's protocol has a loophole, i.e., two or more dishonest participants who meet a specific location relationship can conspire to obtain the private inputs of some honest participants without being detected. Accordingly, improvements are proposed to address these issues.

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Xiaobing Li, Jiale Hou, Haozhen Situ, Cai Zhang. 2023-08-31. Improvements on "Multi-Party Quantum Summation without a Third Party based on $d$-Dimensional Bell States". https://arxiv.org/abs/2307.10908

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