3 research outputs found
Improvements on "Multi-Party Quantum Summation without a Third Party based on -Dimensional Bell States"
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