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Efficient quantum privacy comparison method and system

A quantum and privacy technology, applied in the field of communication networks, which can solve the problems of expensive purchase of quantum equipment and the inability of quantum security protocols to be widely used

Active Publication Date: 2019-03-15
CHENGDU UNIV OF INFORMATION TECH
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Problems solved by technology

[0016] For communication users, purchasing quantum equipment is too expensive, and existing quantum security protocols cannot be widely used

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  • Efficient quantum privacy comparison method and system
  • Efficient quantum privacy comparison method and system
  • Efficient quantum privacy comparison method and system

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] Some existing quantum privacy comparison protocols are designed based on the quantum key distribution protocol, and the premise of quantum key distribution is that the two parties participating in the communication are credible, but in the quantum privacy comparison, the two parties participating in the communication are untrustworthy. Both parties want additional access to the other's secret information. Therefore, the privacy comparison protocol designed based on the quantum key distribution protocol has the problem of secret information leakage.

[0050] The present invention will be further described below in co...

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Abstract

The invention belongs to the technical field of communication networks, and discloses an efficient quantum privacy comparison method and system. In a quantum privacy comparison protocol, only a semi-trusted server needs to be configured with a quantum memory, a Bell-state preparation device and Bell-state joint measuring equipment; in secrete information comparison, both parties only need to configure quantum equipment for measuring and reflecting a |0>,|1> state of a quantum, so that the comparison of secrete information can be realized; in the operation process of the protocol, the semi-trusted server can be provided by a special quantum server provider, and the provider only needs to strictly comply with the requirements of the protocol, even if the provider records data in the protocolcommunication process, the provider cannot obtain the secret information of a user. The application scene of the efficient quantum privacy comparison method provided by the invention is easy to be implemented compared with an existing protocol and accords with an actual scene of a future quantum network application, and the efficient quantum privacy comparison method has a promoting effect on theapplication development of a quantum communication network.

Description

technical field [0001] The invention belongs to the technical field of communication networks, and in particular relates to an efficient quantum privacy comparison method and system. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] With the development of quantum communication networks, the security of quantum communication has become a hot research topic in the industry, and the comparison of quantum privacy is one of the problems to be solved urgently in quantum cryptography. Quantum privacy comparison is to solve the problem of determining whether the secret information of two distrusting parties is equal without disclosing the secret information of the two parties. Quantum privacy comparison can be applied to scenarios such as electronic voting and electronic auctions to achieve information comparison under the premise of ensuring user privacy. [0004] In 2009, Yang et al. proposed the first qua...

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Application Information

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IPC IPC(8): H04L9/06H04L9/08H04L29/06H04B10/70
CPCH04B10/70H04L9/0643H04L9/085H04L9/0852H04L63/06H04L63/083
Inventor 闫丽丽张仕斌昌燕盛志伟
Owner CHENGDU UNIV OF INFORMATION TECH
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