An improved method for generating a light quantum random number

An implementation method and random number generator technology, applied in the field of quantum communication, can solve the problems of unstable mass production of random numbers, etc., and achieve the effects of stable random number generation, improved utilization rate, and uniform photon number

Inactive Publication Date: 2019-06-21
徐文婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of the prior art, the present invention provides an improved method for generating photon random numbers to solve the problem that the random number generation method in the prior art cannot stably mass-produce random numbers, and requires frequent calibration and correlation

Method used

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  • An improved method for generating a light quantum random number
  • An improved method for generating a light quantum random number
  • An improved method for generating a light quantum random number

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Embodiment 1

[0053] see image 3 , this embodiment provides an improved implementation method for photon random number generation, which is applied to a random number generator (which may be the random number generator mentioned above). Wherein, the random number generator in this embodiment includes a light source 1 , a detector array 2 and a randomness extractor 3 . The detector array 2 is used to block the light emitted by the light source 1 and receive photons in the light to generate corresponding electrons and voltages, which are converted into bit streams accordingly. The randomness extractor 3 is used to randomly extract the data it receives and obtain random numbers.

[0054] The realization method of the improved optical quantum random number generation comprises the following steps:

[0055] Step 1, homogenizing the light field emitted by the light source 1 to the detector array 2;

[0056] Step 2, receiving the bit stream generated by the detector array 2, and periodically c...

Embodiment 2

[0069] see Figure 4 , Figure 5 as well as Figure 6 , this embodiment provides an improved device for generating quantum random numbers based on optics, which is the random number generator in Embodiment 1, and the implementation method for generating optical quantum random numbers improved in Embodiment 1 is applied. The improved optical-based quantum random number generation device includes a light source 1, a detector array 2, a randomness extractor 3, a uniform light material module 4, and a pixel processing control module 5, wherein the randomness extractor 3 is a simplified randomness The number of extractor 3 may be only one. The detector array 2 may be provided with a lossy channel 2a, a photoelectric sensor 2b and an analog-to-digital converter 2c. Wherein, Step 1 in the implementation method of Embodiment 1 can use the homogenizing material module 4 of this embodiment to homogenize the light field.

[0070] The light source 1 may be a light emitting diode, a la...

Embodiment 3

[0081] see Figure 7-10 , this embodiment provides an arrangement structure of an optical quantum random number generator, which includes a light source 1 , a detector array 2 , a PCB board 7 , a shield 8 , a randomness extractor 3 and a pixel processing control module 5 . Wherein, the light source 1 , the detector array 2 , the randomness extractor 3 and the pixel processing control module 5 can adopt the corresponding components in the second embodiment. And the photosensor 2b in Embodiment 2 is the same as the multi-pixel photon sensor 6 in this embodiment.

[0082] The arrangement structure of the optical quantum random number generator of this embodiment is similar to the improved optical quantum random number generation device of embodiment 2, the difference is that the arrangement of the light source 1 and the detector array 2 of this embodiment is different, and , the present embodiment increases the PCB board 7 and the shielding case 8 .

[0083] In this embodiment,...

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Abstract

The invention discloses an improved method for generating a light quantum random number, which is applied to a random number generator. The random number generator comprises a light source, a detectorarray and a random extractor. The implementation method comprises the following steps: homogenizing a light field emitted by a light source to a detector array; Receiving a bit stream generated by the detector array, and periodically counting an interval of pixel intensity distribution to obtain light intensity information; According to the light intensity information, judging whether each pixelintensity reaches a preset threshold or not, transmitting the bit stream generated by the detector array to a random extractor if, and judging whether the light intensity is greater than a preset light intensity value or not if not; When the light intensity is greater than the preset light intensity value, driving the light source to reduce the light emitting brightness; And when the light intensity is not greater than the preset light intensity value, driving the light source to improve the light emitting brightness. According to the invention, the calibration and association design on the random extractor can be avoided, the device is greatly simplified, and the generation of the random number is more stable.

Description

technical field [0001] The invention relates to a method for realizing random number generation in the technical field of quantum communication, in particular to an improved method for realizing photoquantum random number generation. Background technique [0002] Random numbers play an important role in various fields such as economy, science, national defense, and industrial production. Specifically, it has very important applications in statistical analysis, simulation in industry and science, cryptography, and the gaming industry in life. The classic method can only generate pseudo-random numbers. From the point of view of its principle, pseudo-random numbers actually just "look like" random numbers, that is, with the current level of science and technology within a limited time, there is only a very small possibility differentiate them. But in essence, their entropy is different, so pseudo-random numbers cannot be used directly in many fields, because absolute security...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58
Inventor 徐文婷
Owner 徐文婷
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