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Cloud quantum privacy query method based on user agent

A user agent and query method technology, applied in quantum computers, electrical digital data processing, complex mathematical operations, etc., can solve the problem of quantum privacy query scheme without multiple users querying database information, information leakage, and the query results do not know whether they are correct or not. problems, to achieve the effect of ensuring absolute safety, ensuring safety, and improving efficiency

Active Publication Date: 2021-02-05
CHENGDU UNIV OF INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing quantum privacy query still has a certain risk of information leakage
[0009] 3. The existing quantum privacy query scheme has almost no function for multiple users to query database information, and it is not known whether the query result is correct

Method used

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  • Cloud quantum privacy query method based on user agent
  • Cloud quantum privacy query method based on user agent
  • Cloud quantum privacy query method based on user agent

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Embodiment Construction

[0070] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0071] The invention proposes a user agent-based cloud quantum privacy query scheme. In the environment of quantum communication network, a cloud computing center-based entrusted encryption calculation is proposed, and then the transmission d dimensional quantum state to perform efficient quantum Fourier transform, and finally realize the user's privacy query result verification.

[0072] Such as figure 1 As shown, first...

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Abstract

The invention discloses a cloud quantum privacy query method based on a user agent. The method comprises the following steps: negotiating with the user agent through a classical channel by utilizing adatabase to obtain a first shared key; encrypting the quantum state sequence generated according to the key by using a database to generate a first mixed sequence, and transmitting the first mixed sequence to a cloud service provider; performing quantum delegation calculation on the first mixed sequence by using a cloud service provider to generate a second mixed sequence, and transmitting the second mixed sequence to a user agent; decrypting the second mixed sequence by using the user agent to generate a third mixed sequence, and transmitting the third mixed sequence to the query user group;and decrypting the third mixed sequence by utilizing the query user to obtain a query quantum state, and performing quantum privacy query according to the obtained query quantum state. The whole delegation encryption process is subjected to dual encryption in a cloud server delegation encryption calculation mode, and the efficiency of whole quantum transmission is improved by utilizing the advantage that multiple quantum keys are transmitted at a time through quantum Fourier transform.

Description

technical field [0001] The invention relates to the technical field of quantum privacy query, in particular to a user agent-based cloud quantum privacy query method. Background technique [0002] In today's society, cloud computing, machine learning, and artificial intelligence are all research hotspots in academia. The research center of quantum scholars has gradually evolved from quantum information science to quantum theory combined with cloud computing and machine learning. The popular research directions of quantum information and computing include: quantum computing, quantum search algorithm or quantum Fourier transform, etc. Quantum private data query is one of the important branches of quantum secure communication. The user queries the database for data that has been authorized, but the user hopes that the database cannot know his specific query content. Likewise, databases don't want users to get data entries that they don't have permission to query. However, th...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L29/06G06F21/62G06F21/60G06N10/00G06F17/14
CPCG06F17/14G06F21/602G06F21/6227G06F21/6245G06N10/00H04L9/0819H04L9/0838H04L9/0852H04L9/0855H04L9/0858H04L63/1441
Inventor 闫丽丽刘冬梅张仕斌昌燕
Owner CHENGDU UNIV OF INFORMATION TECH
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