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Randomness quantification model and method for ASE noise quantum random number generation scheme

A technology of ASE noise and quantum random numbers, which is applied in the field of random number generation schemes, can solve problems such as hidden safety hazards in the system, achieve the effect of strong feasibility and universality, and improve security

Inactive Publication Date: 2021-12-21
NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In principle, eavesdroppers can obtain partial information of the final random sequence by controlling the classic electrical noise information of the system, so the system has security risks

Method used

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  • Randomness quantification model and method for ASE noise quantum random number generation scheme
  • Randomness quantification model and method for ASE noise quantum random number generation scheme
  • Randomness quantification model and method for ASE noise quantum random number generation scheme

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as figure 2 As shown, a randomness quantization model of an ASE noise quantum random number generation scheme, including:

[0058] The ASE noise signal generating device is provided with an ASE light source in the ASE noise signal generating device, and in each time window i Inside, the ASE light source will emit n i photons, the number of photons is a random variable that obeys the independent and identical distribution;

[0059] The detection device is provided with a photodetector, and the photodetector detects the photon of the ASE light source and generates a photocurrent i i , the photocurrent i i and photon number n i proportional to ,in c 1 is the response coefficient of the photodetector;

[0060] A sampling device is provided with an analog-to-digital converter ADC in the sampling device, and the analog-to-digital converter ADC samples the photocurrent of the photodetector and obtains a corresponding output voltage v i , the voltage and ph...

Embodiment 2

[0062] It should be noted that, in this embodiment, if figure 1 As shown, a randomness quantification method applicable to the ASE noise quantum random number generation scheme is based on the randomness quantization model of the ASE noise quantum random number generation scheme, and includes the following steps:

[0063] S1, measuring the spectral width of ASE optical signal , combined with the system electronics bandwidth , to calculate the number of ASE light source modes M ;

[0064] S2, measuring the output power of ASE optical signal P , combined with the detection time window T and the center wavelength of the optical signal , calculate the average number of photons in each mode of the ASE optical signal ;

[0065] S3, measure the corresponding average sampling voltage value under different optical power , to calculate the sampling voltage v and photon number n The comprehensive response coefficient of c ;

[0066] S4, calculate the probability distribu...

Embodiment 3

[0068] Based on Embodiment 2, it should be noted that in this embodiment, in step S1, a sub-step is included: calculate the number of ASE light source modes according to the following formula M :

[0069]

[0070] For the ASE optical signal whose spectral shape obeys Gaussian type, the number of modes by polarization factor , The spectral width of the optical signal actually detected by the photodetector , system electronics bandwidth directly determined; among them, when the system is polarized light, the polarization factor ; When the system is unpolarized light, the polarization factor ; erf(x) represents the error function; exp refers to the exponential function with e as the base; the spectral width of the optical signal The 3dB bandwidth of the ASE light source can be measured for the spectrometer; the system electronics bandwidth Depends on detector bandwidth.

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Abstract

The invention discloses a randomness quantification model and method of an ASE noise quantum random number generation scheme. The method comprises the following steps: S1, calculating an ASE light source mode number M; S2, calculating the average photon number of ASE optical signals in each mode; S3, calculating a comprehensive response coefficient c of the sampling voltage v and the photon number n; and S4, calculating the probability distribution and the minimum entropy corresponding to quantum signals in the sampling voltage. According to the invention, the classical electric noise ratio in an initial sequence can be evaluated, and the randomness purely generated by the quantum process is quantitatively evaluated, so that the safety of an output random sequence is improved.

Description

technical field [0001] The present invention relates to the field of random number generation schemes, and more specifically, relates to a random quantization model and method of an ASE noise quantum random number generation scheme. Background technique [0002] Random numbers play an important role in fields such as gaming, statistical sampling, computational simulation, cryptography, information security, and quantum secure communication. How to safely and reliably generate high-speed, high-quality true random numbers is the key to key security protection, and is an important research direction in cryptography and even information security. [0003] According to the generation method, the current random number generator generation scheme is mainly divided into two types: pseudo-random number generator and physical random number generator. Pseudo-random number generators are generated using deterministic computer algorithms and have been widely used in modern digital elect...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F7/58G06F111/08G06F119/06G06F119/10
CPCG06F30/20G06F7/588G06F2111/08G06F2119/06G06F2119/10
Inventor 吴梅徐兵杰杨杰樊矾刘金璐李扬黄伟
Owner NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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