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A privacy protection quantum multi-party data statistics method based on an annular structure

A technology for data statistics and privacy protection, applied in digital data protection and key distribution to improve security

Active Publication Date: 2019-06-25
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, most of the participants are semi-loyal, that is, although they will complete the computing tasks according to the agreement, they will also try to eavesdrop on the information of other participants. Therefore, privacy protection has become a key consideration in the practical application of QSMC.

Method used

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  • A privacy protection quantum multi-party data statistics method based on an annular structure
  • A privacy protection quantum multi-party data statistics method based on an annular structure
  • A privacy protection quantum multi-party data statistics method based on an annular structure

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Embodiment Construction

[0025] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The privacy protection quantum multi-party data statistics method based on the ring structure of the present invention is set with n (n>3) users participating in the multi-party data statistics, named respectively as User 1, User 2, ..., User n, each user has There are m statistical items (numbered from 0 to m-1), and the data statistical function is denoted as f. It is assumed that all participating users are semi-loyal. Participant's private information.

[0027] like figure 1 , the technical solution of the present invention is based on a ring structure. The cycle starts from User 1, and User 1 sends the quantum state of the private information to the next user, and after each user completes the agreed operation, the result is sent to the next user. users until the last user, User n, sends the operation result to User 1, and the ...

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Abstract

According to the privacy protection multi-party quantum data statistics method based on the annular structure, under the quantum mechanism, the annular structure is connected in series with a multi-party user to carry out a certain agreed data statistics operation. The method has the beneficial effect that the privacy information of the user is not leaked on the premise that the calculation correctness is ensured.

Description

technical field [0001] The invention belongs to the field of quantum secure multi-party computing, and in particular relates to a privacy-protected quantum multi-party data statistics method based on a ring structure. Background technique [0002] Quantum informatics is an interdisciplinary science between informatics and physics. It applies quantum theory to the fields of communication, computing, and cryptography, forming three important branches: quantum communication, quantum computing, and quantum cryptography. Secure Multi-Party Computation (SMC) is an important part of modern cryptography and a hot research field. Its main goal is to complete the following computing tasks: in a distributed network that does not trust each other, two or more users can communicate without revealing their respective Under the premise of private data, cooperate to calculate an agreed function and obtain the calculation result. Secure multi-party computing has broad application prospects ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08G06F21/62
Inventor 刘文杰张颖
Owner NANJING UNIV OF INFORMATION SCI & TECH