Self-adaptive real-time true random number generation device based on ultrahigh frequency laser chaos

A true random number, ultra-high frequency technology, applied in the field of real-time true random number generation devices, can solve problems such as continuous adjustment

Active Publication Date: 2017-01-04
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the "electron speed bottleneck" and "amplitude threshold" must be constantly adjusted in the above-mentioned prior art, so as to provide an adaptive real-time true random number generator based on ultra-high frequency laser chaos

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  • Self-adaptive real-time true random number generation device based on ultrahigh frequency laser chaos
  • Self-adaptive real-time true random number generation device based on ultrahigh frequency laser chaos
  • Self-adaptive real-time true random number generation device based on ultrahigh frequency laser chaos

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Embodiment Construction

[0021] Implement the above-mentioned a kind of self-adaptive real-time true random number generation device based on ultra-high frequency laser chaos provided by the present invention, utilize ultra-high frequency chaotic laser pulse source to produce chaotic laser pulse sequence, divide into two equal parts through 3dB optical coupler After the road, the photoelectric balance detector is used for differential processing to obtain a true random electrical pulse sequence, and finally the limiting amplifier is shaped to output a high-speed true random number sequence.

[0022] The device is composed of an ultra-high frequency chaotic laser pulse source 1, a 3dB optical coupler 2, a tunable optical delay line 3, a balanced photodetector 4, and a limiting amplifier 5. The ultra-high repetition frequency and randomly fluctuating chaotic optical pulse sequence output by the chaotic laser pulse source is divided into two paths by the 3dB optical coupler 2, one of which is delayed by t...

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Abstract

The invention discloses a self-adaptive real-time true random number generation device based on ultrahigh frequency laser chaos. According to the device, a 3dB optical coupler is arranged at an output end of an ultrahigh frequency chaos laser pulse source; two output ends of the 3dB optical coupler are connected with two input ends of a photoelectric balance detector; and a tunable delay line is arranged on a previous input end. An output end of the photoelectric balance detector is connected with an input end of an amplitude limiting amplifier. According to the device, through utilization of an active mode locking pulse laser, an electronic bottleneck problem is overcome. Through utilization of the photoelectric balance detector and the amplitude limiting amplifier as quantification modules, the problem that a random number rate is low is solved. Through adoption of a self-delay balance detection technology, a true random number is generated self-adaptively. The technical problem that in the prior art, an amplitude discrimination threshold value needs to be set and adjusted continuously is overcome. The device is simple in structure and high in practicability.

Description

technical field [0001] The invention relates to a real-time true random number generating device, in particular to a device for generating a high-speed true random number sequence in real time by using ultra-high frequency laser chaos, which is suitable for the fields of secure communication, radar system, digital signature and high-speed simulation. Background technique [0002] Random numbers are widely used in secure communications, radar systems, digital signatures, and high-speed simulation. [0003] There are two common random number generators: one is a pseudo-random number generator based on complex algorithms, and the other is a physical random number generator based on some random phenomenon. The pseudo-random number generator uses complex computer algorithms to encrypt the system, but it is completely deterministic. Once the seed and algorithm are known, it can be predicted or even completely copied, which poses a great security risk. Physical random number gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58
CPCG06F7/588
Inventor 李璞王云才郭龑强郭晓敏赵东亮刘香莲张建国
Owner TAIYUAN UNIV OF TECH
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