Quantum encryption method based on chaotic sequence

A chaotic sequence, quantum encryption technology, applied in key distribution
CN109889338AInactive Publication Date: 2019-06-14SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2019-06-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a quantum encryption method based on a chaotic sequence. The invention discloses a quantum encryption method based on a chaotic sequence. The method comprises the following steps of: performing quantitative judgment on a chaotic sequence in a chaotic state to generate a binary sequence with enough length; the method is used as key information of a quantum noise encryption system, quantitative decision function is as follows; using the chaotic sequence to generate a chaotic signal, and the chaotic signal is used to generate a chaotic signal. The chaotic signal is used togenerate a chaotic signal; and the sender and the receiver only need to share three key parameters, namely iteration times, a logistic map coefficient and a chaotic sequence length, so that a matchedpassword sequence can be automatically generated. The beneficial effects of the method are as follows: compared with a traditional quantum encryption system, the quantum encryption system has the advantages that the cracked risk and the safe transmission difficulty of the long password sequence are considered, the long chaotic sequence generated by the chaotic function is used as the password sequence of the quantum encryption system, and therefore safe decoding of information can be achieved only by sharing key parameters of the chaotic function between legal transceivers.
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Description

technical field

[0001] The invention relates to the field of quantum encryption, in particular to a quantum encryption method based on a chaotic sequence. Background technique

[0002] With the continuous increase of network applications, network security issues have become increasingly prominent. Compared with the encryption technology based on single-photon quantum key distribution, the physical layer encryption technology based on quantum noise is more suitable for long-distance and high-capacity optical fiber communication systems.

[0003] Quantum noise encryption technology (QSC: Y-00quantum stream cipher) is to jointly modulate the low-order modulation signal and the base signal into a high-order signal, and use the characteristics of the high-order signal to be sensitive to noise to successfully hide the low-order signal in the noise.

[0004] The traditional technology has the following technical problems:

[0005] The challenge of quantum noise encryption technol...

Claims

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