Simple Proof of Security of the multiparty Prepare and Measure QKD
- URL: http://arxiv.org/abs/2204.05215v1
- Date: Mon, 11 Apr 2022 16:01:12 GMT
- Title: Simple Proof of Security of the multiparty Prepare and Measure QKD
- Authors: Kumar Nilesh
- Abstract summary: This paper examines the prepare and measure version of multiparty communication through quantum key distribution.
It is sufficient to have the capability of preparing and measuring a single qubit state.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The majority of research to date has concentrated on the quantum key
distribution (QKD) between two parties. In general, the QKD protocols proposed
for the multiparty scenario often involve the usage of a maximally entangled
state, such as GHZ, which is challenging to implement in practice. This paper
examines the prepare and measure version of multiparty communication through
quantum key distribution. It is sufficient to have the capability of preparing
and measuring a single qubit state. The security of the multiparty prepare and
measure QKD is demonstrated by utilizing the well-known techniques of quantum
error correction and entanglement purification. We begin by establishing the
security of the entangled-based version and progress through a series of
reductions to arrive at our equivalent multiparty prepare and measure version
of QKD. We establish the security proof of multiparty entangled-based version
by combining FTQC and classical statistics on the GHZ basis. Then proved the
conditional security of the multiparty prepare-and-measure QKD by the
equivalency.
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