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Banker semi-offline rational quantum state sharing method, device and quantum communication control system

A quantum state, off-line technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as high risk of information leakage, achieve the effect of reducing information exchange, ensuring fairness, and improving security

Active Publication Date: 2022-02-25
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0008] The embodiment of the present invention provides a banker's semi-offline rational quantum state sharing method, device and quantum communication control system to eliminate or improve one or more defects existing in the prior art to solve the existing quantum state sharing technology The problem of high risk of information leakage caused by excessive participation of dealers

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  • Banker semi-offline rational quantum state sharing method, device and quantum communication control system
  • Banker semi-offline rational quantum state sharing method, device and quantum communication control system
  • Banker semi-offline rational quantum state sharing method, device and quantum communication control system

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Embodiment Construction

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0042] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related structures and / or processing steps are omitted. Other details not relevant to the invention.

[0043] It should be emphasized that the term "comprising / comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other feat...

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Abstract

The present invention provides a dealer semi-offline rational quantum state sharing method, device and quantum communication control system. The dealer determines and announces the total number of rounds and revealing rounds. Before the total number of rounds is reached, the dealer is in an offline state. In the round, all participants jointly select the reconstruction participants, and the reconstruction participants generate and distribute the quantum state pairs in the EPR to the auxiliary participants, and the auxiliary participants perform X-based measurements on the received quantum states and announce the first measurements Result; after the total number of rounds is reached, the dealer will announce the reveal round, and the reconstruction participants corresponding to the reveal round will send the remaining quantum states to the dealer, and the dealer will add the quantum states to be shared and measure the GHZ state to obtain the second The measurement results, and then the reconstruction participants in the reveal round perform unitary operations on the two remaining particles assigned to themselves according to the first and second test results, so as to reconstruct the quantum state to be shared by the dealer. The workload of the banker is reduced, the fairness is ensured, and the security is improved.

Description

technical field [0001] The present invention relates to the technical field of quantum information sharing, in particular to a banker's semi-offline rational quantum state sharing method, device and quantum communication control system. Background technique [0002] The idea of ​​secret sharing divides the secret in an appropriate way, and each split share is managed by different participants. Unless there are enough authorized participants to cooperate, the secret information cannot be recovered. The purpose of secret sharing is to prevent excessive concentration of secrets, so as to achieve the purpose of dispersing risks and tolerating intrusion. It is an important means in information security and data confidentiality. The key to secret sharing technology is how to better design secret splitting and recovery methods. [0003] Classical secret sharing protocols are used to share secret information among multiple people. The basic idea of ​​secret sharing is that in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/0852H04L9/085
Inventor 窦钊张花丽车碧琛陈秀波杨榆李剑
Owner BEIJING UNIV OF POSTS & TELECOMM
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