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A trusted relay quantum communication method and system

A quantum communication and credible technology, applied in the field of quantum communication, can solve problems such as increasing system complexity, and achieve the effects of simplifying system complexity, reducing operations, and reducing error rates

Inactive Publication Date: 2021-03-30
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is more secure, it will increase the complexity of the system

Method used

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  • A trusted relay quantum communication method and system
  • A trusted relay quantum communication method and system
  • A trusted relay quantum communication method and system

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Embodiment Construction

[0032]In order to make the above objects, features, and advantages of the present invention, the present invention will be further described in further detail by way of specific embodiments and the accompanying drawings.

[0033]1. Different or value open plan

[0034]In the present invention, both the relay station or an access station, as long as it is not directly involved in communication, all the keys generated by the neighboring end pass the Qkd through the Qkd, and then destroy the key, but not confidential and saving secret. The difference between the key, but is disclosed, the terminal can directly obtain all the varying or values, reused or values ​​directly to decrypt the message. The security of this scheme and the existing storage key is or the value scheme is equivalent, so it can be improved, so that the existing scheme can be improved to achieve the effect of simplifying the system. The improvement plan is specifically described as follows:

[0035]For both parties, there is ...

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PUM

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Abstract

The invention relates to a credible relay quantum communication method and system. The method comprises the following steps: 1) a relay station and two adjacent terminals generate two quantum keys through QKD, and then compute OR values of two quantum keys through OR operation, and destroy two quantum keys; 2) the relay station publishes the OR values obtained through the OR operation to a communication terminal; and 3) the communication terminal performs encryption / decryption operation on the message by using the local quantum key and the OR values in the quantum communication. The security of the OR value publication scheme is equivalent to the encryption scheme for storing the OR values, and the encryption scheme is unconditionally safe as long as the key is safely destroyed after generating the OR value key. Through the communication method disclosed by the invention, the system complexity can be simplified, the operation of the relay station is reduced, and the error rate producedby repeated transmission is reduced to a certain degree.

Description

Technical field[0001]The present invention belongs to the field of quantum communication, and in particular to a trusted relative quantum communication method and system.Background technique[0002]For a trusted relax quantum communication system, the initial encryption scheme is: After the terminal encrypts the communication message M, the relay station re-uses the key to the cipher to encrypt the cipher (the key to the ciphertext). Once any relay station is attacked, the entire system will not have security.[0003]The storage key is different or the value is encrypted is that each relay station is different or by the keys generated by the adjacent end through the Qkd (QuantumKey Distribution, quantum key allocation), and then destroy the key and use the key. Or the value store, reuse the stored key or value is encrypted, ie: the terminal generates a random number S after using the key K1EncryptThe first two points q 点 点 点 点 生 生 密 为1And K2, First relay station calculationWhen you rece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/0855
Inventor 杨理宋雅琪
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI