True random number generation method and system based on optical frequency comb
An optical frequency comb and true random number technology, applied in the laser field, can solve the problems of low random number rate and high cost, and achieve the effect of reducing selection cost and increasing generation rate
Pending Publication Date: 2022-05-17
CHINA TELECOM CORP LTD
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Problems solved by technology
Currently, traditional true random number generators generate random numbers at a low rate and at a high cost
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[0024] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure. The technical solution of the present disclosure will be described in various aspects in conjunction with various figures and embodiments below.
[0025] The "first", "second" and so on in the following are only used to describe the difference, and have no other speci...
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The invention provides a true random number generation method and system based on an optical frequency comb, and relates to the technical field of laser, and the method comprises the steps: generating the optical frequency comb with a preset repetition frequency through an optical fiber laser; dividing the laser signal output by the optical frequency comb into a plurality of laser component signals with different frequencies through a wavelength division device; performing phase transformation and coupling processing on the plurality of laser component signals through a plurality of interferometer modules to obtain a plurality of laser signals with random light intensity; converting the plurality of laser signals with random light intensity into a plurality of random analog electric signals through a photoelectric detector; and generating a true random number based on the plurality of random analog electric signals through a data processing module and outputting the true random number. According to the method and the system disclosed by the invention, the true random number generation rate can be improved based on the stability between optical frequency comb spectrums and a large spectral range, and the selection cost of wavelength division devices can be reduced.
Description
technical field [0001] The present disclosure relates to the field of laser technology, in particular to a method and system for generating true random numbers based on an optical frequency comb. Background technique [0002] Random numbers are a set of unpredictable data. In the process of ensuring information security and fairness (such as the quantum key distribution BB84 protocol), the use of random numbers is very common. Random numbers are divided into true random numbers and pseudo-random numbers. Pseudo-random numbers refer to the data sequences generated by the computational complexity of the algorithm. Once the initial value is determined, the random numbers are also determined. Therefore, the randomness of pseudo-random numbers is not Random in the true sense, theoretically it can be cracked. The generation of true random numbers depends on random physical processes, and the random numbers generated in this way are unpredictable. These random physical processes ...
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IPC IPC(8): G06F7/58
CPCG06F7/588
Inventor 宋伟
Owner CHINA TELECOM CORP LTD