CN102354280A - Physical random number generator - Google Patents
Physical random number generator Download PDFInfo
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- CN102354280A CN102354280A CN2011102343712A CN201110234371A CN102354280A CN 102354280 A CN102354280 A CN 102354280A CN 2011102343712 A CN2011102343712 A CN 2011102343712A CN 201110234371 A CN201110234371 A CN 201110234371A CN 102354280 A CN102354280 A CN 102354280A
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Abstract
The invention relates to a physical random number generator including three modules, i.e., a random entropy source module, a data acquisition module and a data processing module. The physical random number generator realizes dual-way chaotic laser output firstly through utilizing the mutual coupling of lasers, and the output two-way chaotic laser is converted into an electric signal by a photoelectric detector after passing through a polarization controller, an adjustable attenuator, a beam splitter, an isolator and a light amplifier control element and then is converted into a binary bit stream by the data acquisition module. The binary bit stream is subjected to differentiate operation through a logic processor, and then, a random sequence is output. The physical random number generator can generate random numbers with high code rate and is simpler in structure.
Description
Technical field
The present invention relates to a kind of generating technique of physics true random number, this technology can be applicable to aspects such as IT field.
Background technology
Random number all has important use at numerous areas such as information security, computing machine, material science, medical science, finance.
Usually the method that produces random number can be divided into two big types: based on the method for software with based on the method for physical hardware.Utilize algorithm to be called pseudo random number through the random number that the programming computing produces, this type random number is easy to generate but is prone to attacked and cracks; The another kind of random number that from the chance phenomenon in the actual physical world, extracts is called true random number.
Its entropy source of physical random number generator that produces true random number is the natural randomness of choosing from real world; Therefore the random number of its generation has unpredictability, can not repeat advantage such as generation, has a wide range of applications in fields such as cryptography and even information securities.Usually physical random number generator is chosen thermonoise in the resistance device, the phenomenons such as frequency jitter in the oscillator as the entropy source.Yet adopt these methods to produce the inefficiency of high-quality true random number, the code check of most of physical random number generators is difficult to satisfy the application requirements of real-time far below pseudorandom number generator, therefore need seek novel physical entropy source.
And chaos system has non-periodic, noise like, wide spectrum, to characteristics such as starting condition sensitivities, the character of these characteristics and random series is basic coincideing.Therefore chaos system is the randomizer model of one type of natural function admirable.The chaotic laser light device be because it can produce bandwidth up to the chaotic laser light more than the GHz down adding certain external disturbance, thereby aspect lifting random number code check, and comparing with other physical entropy sources has huge advantage.
Summary of the invention
The present invention proposes a kind of two-way physical random number generator based on chaotic laser light entropy source, being able to produce the random number of high code check, and the comparatively simple purpose of structure.
Technical scheme of the present invention is following:
A kind of physical random number generator, it is divided into three big modules: entropy source module, data acquisition module, data processing module at random.
Wherein the entropy source module comprises laser instrument 1a, laser instrument 1b, beam splitter 2, Polarization Controller 3, adjustable attenuator 4, image intensifer 6 or is made up of chaotic laser light device 1c and 1d, collimation lens 2a, Polarization Controller 3a, adjustable attenuator 4a, beam splitter 5a, optoisolator 6a, image intensifer 7a at random.
Data acquisition module comprises that photodetector 7 forms with data collecting card 8 or by photodetector 8a, data collecting card 9a.
Data processing module is that clock control signal 9 is formed with logic processing device 10 or by clock control signal 10a, logic processing device 11a.
Above-mentioned physical accidental entropy generator ultimate principle: at first utilize laser instrument to intercouple and realize the output of two-way chaotic laser light; The two-way chaotic laser light of output after photodetector converts electric signal to, converts binary bit stream to by data acquisition module through Polarization Controller, adjustable attenuator, beam splitter, isolator, image intensifer control element again.Binary bit stream is exported random series after doing calculus of differences via logic processing device.
The present invention has the following advantages:
1, compares common physical random number generator, do the entropy source, be prone to produce the random number of high code check because of adopting chaotic laser light.
2, proposed a kind of simple two-way random number and generated scheme, can further expand in the future and be hyperchannel random number and line output.
3, integrated cost is comparatively cheap.
Description of drawings
Fig. 1 the present invention is based on the structural drawing of chaotic laser light random code generator;
Among the figure: 1a and 1b: chaotic laser light device, 2: beam splitter, 3: Polarization Controller, 4: adjustable attenuator, 5: isolator, 6: image intensifer, 7: photodetector, 8: data collecting card, 9: clock signal, 10: logic processing device
Fig. 2 the present invention is based on the another kind of structural drawing of chaotic laser light random code generator;
Among the figure: 1c and 1d: chaotic laser light device, 2a: collimation lens, 3a: Polarization Controller, 4a: adjustable attenuator; 5a: beam splitter, 6a: isolator, 7a: image intensifer, 8a: photodetector; 9a: data collecting card, 10a: clock control signal, 11a: logic processing device.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Embodiment 1:
Referring to Fig. 1: chaotic laser light device 1a, chaotic laser light device 1b link to each other through beam splitter 2, Polarization Controller 3, adjustable attenuator 4, beam splitter 2, and laser instrument 1a, 1b another road branch separately connects isolator 5, image intensifer 6, adjustable attenuator 4, photodetector 7, data collecting card 8, logic processing device 10 successively.Clock control signal 9 links to each other with logic processing device 10 with data collecting card 8 respectively.
Embodiment 2:
Referring to Fig. 2: chaotic laser light device 1c, chaotic laser light device 1d link to each other through collimation lens 2a, beam splitter 5a, Polarization Controller 3a, adjustable attenuator 4a, beam splitter 5a, collimation lens 2a successively, and laser instrument 1a, 1b another road branch separately connects isolator 6a, image intensifer 7a, adjustable attenuator 4a, photodetector 8a, data collecting card 9a, logic processing device 11a successively.Clock control signal 10a links to each other with logic processing device 11a with data collecting card 9a respectively.
Among Fig. 1, Fig. 2, the chaotic laser light device is all selected the commercial semiconductor laser (LDM5S515-005) of Wuhan Telecommunication Devices Co., Ltd, centre wavelength 1550nm for use.Photodetector is selected New Focus 1544-B for use, and data collecting card is selected Agilent U1071A data collecting card for use, and (2GS/s), logic processing module realizes through the FPGA programming for 8 bit, 2ch.
Claims (3)
1. a physical random number generator is characterized in that, said generator is divided into three big modules: entropy source module, data acquisition module and data processing module at random;
The said source module of entropy at random comprises laser instrument 1a, chaotic laser light device 1b, beam splitter 2, Polarization Controller 3, adjustable attenuator 4, isolator 5 and image intensifer 6; Data acquisition module comprises photodetector 7 and data collecting card 8; Data processing module comprises clock control signal 9 and logic processing device 10;
Said laser instrument 1a, chaotic laser light device 1b link to each other through beam splitter 2, Polarization Controller 3, adjustable attenuator 4, beam splitter 2; Chaotic laser light device 1a, 1b another road branch separately connects isolator 5, image intensifer 6, adjustable attenuator 4, photodetector 7, data collecting card 8, logic processing device 10 successively; Clock control signal 9 links to each other with logic processing device 10 with data collecting card 8 respectively;
Said generator at first utilizes the chaotic laser light device to intercouple and realizes the output of two-way chaotic laser light; Output the two-way chaotic laser light through Polarization Controller, adjustable attenuator, beam splitter, isolator, image intensifer control element after photodetector converts electric signal to; Convert binary bit stream to by data acquisition module again, binary bit stream is exported random series after doing calculus of differences via logic processing device.
2. a physical random number generator is characterized in that, said generator is divided into three big modules: entropy source module, data acquisition module and data processing module at random;
The said source module of entropy at random comprises chaotic laser light device 1c and 1d, collimation lens 2a, Polarization Controller 3a; Adjustable attenuator 4a, beam splitter 5a, optoisolator 6a and image intensifer 7a; Said data acquisition module comprises photodetector 8a and data collecting card 9a; Said data processing module comprises clock control signal 10a and logic processing device 11a;
Said chaotic laser light device 1c, chaotic laser light device 1d link to each other through collimation lens 2a, beam splitter 5a, Polarization Controller 3a, adjustable attenuator 4a, beam splitter 5a, collimation lens 2a successively; Laser instrument 1a, 1b another road branch separately connects isolator 6a, image intensifer 7a, adjustable attenuator 4a, photodetector 8a, data collecting card 9a, logic processing device 11a successively; Clock control signal 10a links to each other with logic processing device 11a with data collecting card 9a respectively;
Said generator at first utilizes the chaotic laser light device to intercouple and realizes the output of two-way chaotic laser light; Output the two-way chaotic laser light through Polarization Controller, adjustable attenuator, beam splitter, isolator, image intensifer control element after photodetector converts electric signal to; Convert binary bit stream to by data acquisition module again, binary bit stream is exported random series after doing calculus of differences via logic processing device.
3. physical random number generator according to claim 1 and 2 is characterized in that,
Said laser instrument is selected commercial semiconductor laser LDM5S515-005, centre wavelength 1550nm for use; Photodetector is selected New Focus 1544-B for use, and data collecting card is selected Agilent U1071A data collecting card for use, and parameter is 8 bit, 2ch, and 2GS/s, logic processing module realizes through the FPGA programming.
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| CN103793198A (en) * | 2014-01-24 | 2014-05-14 | 上海交通大学 | Quantum random number generator based on amplified vacuum state |
| CN104516715A (en) * | 2014-12-29 | 2015-04-15 | 太原理工大学 | Tbps all-optical parallel true random number generator with extra-strong scalability |
| CN104516714A (en) * | 2014-12-29 | 2015-04-15 | 太原理工大学 | High-speed parallel true random number generator with extra-strong scalability |
| CN104516713A (en) * | 2014-12-29 | 2015-04-15 | 太原理工大学 | Ultrafast all-optical true random number generation device |
| CN105247471A (en) * | 2013-05-23 | 2016-01-13 | 新思公司 | System and method for dynamic tuning feedback control for random number generator |
| CN105468332A (en) * | 2015-11-20 | 2016-04-06 | 中国科学技术大学 | Data post-processing type instant true random signal generator |
| CN105930131A (en) * | 2016-04-27 | 2016-09-07 | 太原理工大学 | Ultrafast real-time optical true random pattern generator |
| CN106155629A (en) * | 2016-06-15 | 2016-11-23 | 中国科学技术大学 | Random number high rate bioreactor device and its implementation |
| CN106301754A (en) * | 2016-08-01 | 2017-01-04 | 太原理工大学 | A kind of truly random password generating means based on vertical cavity surface emitting laser |
| CN103942030B (en) * | 2014-03-25 | 2017-02-08 | 电子科技大学 | True random number generation method and device |
| CN106654855A (en) * | 2016-11-09 | 2017-05-10 | 西南大学 | Optical chaos generating device based on silicon photon microcavity |
| CN108874366A (en) * | 2018-09-06 | 2018-11-23 | 西南大学 | A kind of high-speed physical randomizer based on chaotic laser light entropy source |
| CN109840071A (en) * | 2019-04-01 | 2019-06-04 | 太原理工大学 | A kind of optical microcavity high-speed physical random code generator |
| CN110887982A (en) * | 2019-12-17 | 2020-03-17 | 深圳市知用电子有限公司 | Optical fiber differential probe |
| CN111176612A (en) * | 2020-03-10 | 2020-05-19 | 西南大学 | Random number generating device |
| CN114995788A (en) * | 2022-08-04 | 2022-09-02 | 威海天航信息技术有限公司 | Physical random number generator, physical random number generating method and processor |
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2011
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| CN105247471A (en) * | 2013-05-23 | 2016-01-13 | 新思公司 | System and method for dynamic tuning feedback control for random number generator |
| CN103793198B (en) * | 2014-01-24 | 2017-01-04 | 上海交通大学 | Based on quantum random number generator and the method for amplifying vacuum state |
| CN103793198A (en) * | 2014-01-24 | 2014-05-14 | 上海交通大学 | Quantum random number generator based on amplified vacuum state |
| CN103942030B (en) * | 2014-03-25 | 2017-02-08 | 电子科技大学 | True random number generation method and device |
| CN104516715A (en) * | 2014-12-29 | 2015-04-15 | 太原理工大学 | Tbps all-optical parallel true random number generator with extra-strong scalability |
| CN104516714A (en) * | 2014-12-29 | 2015-04-15 | 太原理工大学 | High-speed parallel true random number generator with extra-strong scalability |
| CN104516713A (en) * | 2014-12-29 | 2015-04-15 | 太原理工大学 | Ultrafast all-optical true random number generation device |
| CN105468332A (en) * | 2015-11-20 | 2016-04-06 | 中国科学技术大学 | Data post-processing type instant true random signal generator |
| CN105468332B (en) * | 2015-11-20 | 2017-11-28 | 中国科学技术大学 | A kind of instant true random signal generator of data processing postposition type |
| CN105930131B (en) * | 2016-04-27 | 2019-01-04 | 太原理工大学 | A kind of truly random pattern generator of ultrafast real-time optical |
| CN105930131A (en) * | 2016-04-27 | 2016-09-07 | 太原理工大学 | Ultrafast real-time optical true random pattern generator |
| CN106155629A (en) * | 2016-06-15 | 2016-11-23 | 中国科学技术大学 | Random number high rate bioreactor device and its implementation |
| CN106301754A (en) * | 2016-08-01 | 2017-01-04 | 太原理工大学 | A kind of truly random password generating means based on vertical cavity surface emitting laser |
| CN106654855A (en) * | 2016-11-09 | 2017-05-10 | 西南大学 | Optical chaos generating device based on silicon photon microcavity |
| CN108874366A (en) * | 2018-09-06 | 2018-11-23 | 西南大学 | A kind of high-speed physical randomizer based on chaotic laser light entropy source |
| CN108874366B (en) * | 2018-09-06 | 2024-01-30 | 西南大学 | High-speed physical random number generator based on chaotic laser entropy source |
| CN109840071A (en) * | 2019-04-01 | 2019-06-04 | 太原理工大学 | A kind of optical microcavity high-speed physical random code generator |
| CN110887982A (en) * | 2019-12-17 | 2020-03-17 | 深圳市知用电子有限公司 | Optical fiber differential probe |
| CN110887982B (en) * | 2019-12-17 | 2024-05-31 | 深圳市知用电子有限公司 | Optical fiber differential probe |
| CN111176612A (en) * | 2020-03-10 | 2020-05-19 | 西南大学 | Random number generating device |
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| CN114995788A (en) * | 2022-08-04 | 2022-09-02 | 威海天航信息技术有限公司 | Physical random number generator, physical random number generating method and processor |
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Application publication date: 20120215 |