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An encryption method and encryption system for optical information

An encryption system and optical information technology, applied in the field of information encryption, can solve problems such as the disappearance of security meaning, and achieve the effect of increasing security, large amount of information, and difficult to crack

Active Publication Date: 2020-01-21
ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the chaotic password law of this patent is cracked, the security meaning will disappear
In particular, this patent cannot divide optical communication into light with multiple changes at the same time for encrypted transmission

Method used

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  • An encryption method and encryption system for optical information
  • An encryption method and encryption system for optical information
  • An encryption method and encryption system for optical information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 Shown is a schematic diagram of logic modules of the communication device of the present invention.

[0046] The invention provides a stroboscopic information communication device, which at least includes an electric encryption module and an optical modulation module. The electrical encryption module is an encryption chip, and at least one encryption function is selected to convert the electrical signal carrying data information into an encrypted electrical signal. Preferably, the encrypted electrical signal is an encrypted pulse electrical signal.

[0047] The optical modulation module is an optical modulator, which is used to convert electrical signals into optical signals. Optical modulator, also known as electro-optic modulator, is a device that regulates the refractive index, absorption rate, amplitude or phase of the output light. It is based on various forms of electro-optic effect, acousto-optic effect, magneto-optic effect, Frank -Keldgsh ef...

Embodiment 2

[0065] This embodiment is a further improvement on Embodiment 1, and repeated content will not be repeated here.

[0066] This embodiment provides an optical information encryption system, such as figure 1 shown. An optical information encryption system includes an encryption unit 20 and a decryption unit 40 . The encryption unit 20 is connected to the first optical signal transceiving unit 10 . The decryption unit 40 is connected to the second optical signal transceiving unit 50 . The first optical signal transceiving unit 10 and the second optical signal transceiving unit 50 may be directly connected through an optical signal, or may be connected through an optical communication network 30. Preferably, the optical communication network 30 includes one or more of optical fibers, optical isolators and optical communicators. Preferably, the optical fiber may be one or more of standard single-mode optical fiber, dispersion-shifted optical fiber and non-dispersion-shifted opt...

Embodiment 3

[0090] This embodiment is a further improvement on Embodiment 1 and Embodiment 2 and their combination, and the repeated content will not be repeated.

[0091] This example is for Figure 2 to Figure 10 The characteristic curve change of the optical signal is described in detail. The variation trend of the characteristic curve of the preferred first light-emitting stage of the present invention is as follows Figure 2 to Figure 4 shown. The horizontal axis in the figure represents time, and the unit is ms. The vertical axis represents intensity or relative intensity, and the unit is not limited, expressed by the international general symbol a.u. The light-emitting period of this embodiment is preferably 20ms, the first light-emitting stage is 0-5ms, the second light-emitting stage is 5-15ms, and the third light-emitting stage is 15-20ms.

[0092] Such as figure 2 and image 3 In the luminescence curves No. 1-6 shown, the luminous intensity in the first luminescent stage...

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Abstract

The invention relates to an optical information encryption method and encryption system. The system at least comprises an electrical encryption module and an optical modulation module, the electricalencryption module encrypts an electrical signal carrying data information into a first encrypted pulse electrical signal based on at least one encryption function, the optical modulation module modulates the first encrypted pulse electrical signal into an optical signal comprising at least two light emitting stages within one light emitting period based on the at least one optical modulation scheme, the light in the at least one light emitting stage independently changes according to a time-dependent characteristic curve, the characteristic curve corresponds to the first encrypted pulse electrical signal, the light in the at least one light emitting stage independently changes according to a characteristic curve associated with the encryption function of the first encrypted pulse electrical signal, and / or, the light in the at least one light emitting stage changes with the time at a characteristic curve close to zero konder. According to the optical information encryption method and encryption system, the light emitting period is divided into at least two light emitting stages, and the light emitting parameter changes in the light emitting stages are independently regulated and controlled to form encrypted light signals, so that the security level is high and is difficult to crack.

Description

technical field [0001] The invention relates to the technical field of information encryption, in particular to an optical information encryption method and encryption system. Background technique [0002] The security measures of the existing optical communication system still adopt stream cipher encryption and decryption technology based on electrical signal processing. Due to the limitation of electronic "bottleneck", the encryption and decryption rate is low, and the maximum rate in the laboratory is only 2.5Gbit / s . When an emergency occurs, the business volume of the existing optical communication network may increase by dozens or even hundreds of times. The traditional encryption and decryption technology based on electrical signal processing is difficult It is fully compatible with the next-generation all-optical communication network, and the rate of encryption and decryption technology based on all-optical signal processing can exceed 100Gbit / s. At the same time,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/85H04B10/516H04L9/08
CPCH04B10/516H04B10/85H04L9/0861
Inventor 李成宇张洪杰王森
Owner ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
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