CN207427176U - A kind of miniaturization quantum authentication system - Google Patents
A kind of miniaturization quantum authentication system Download PDFInfo
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- CN207427176U CN207427176U CN201720885111.4U CN201720885111U CN207427176U CN 207427176 U CN207427176 U CN 207427176U CN 201720885111 U CN201720885111 U CN 201720885111U CN 207427176 U CN207427176 U CN 207427176U
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Abstract
The utility model proposes a kind of quantum authentication systems of miniaturization.The system prepares single-photon source using the method that laser pulse is decayed, using high speed spatial light modulator to being encoded before incident light wave, the optics PUF that illumination after coding is mapped to random medium composition generates speckle response on the key, carries out registration and the verification process that PUF keys are completed in processing to speckle using spatial light modulator；Light path on three-dimensional is folded and the volume of Verification System really is reduced using cage light path system by the utility model, and using the equipment of commercialization, makes manufacture cost extremely low.
Description
Technical field
The utility model is related to a kind of identity authorization system, a kind of quantum authentication system of miniaturization of major design belongs to
Technical field of security authentication.
Background technology
Quantum authentication is a kind of brand-new secure authentication technology proposed in recent years.It utilizes physics unclonable function
（Physical Unclonable Function, PUF）Entity as key, by the use of quantum state excitation-response pair as close
Code, by quantum non-clone principle and physics unclonable function double shield, can ensure identity information not from physical principle
It is cloned and falsely uses, there is the security of " absolute ".It can not also be cracked even with quantum computer.Based on physics
Unclonable function（PUF）The security certification system of preparation has fabulous application prospect, is expected to authentication, identification and adds
Close field generates revolutionary influence.
The quantum authentication system currently reported all is the complexity built using optical component on the optical table of laboratory
Light path system.Both optics PUF keys are prepared using Disordered Media and is recognized using classical laser as excitation light source structure safety
After card system, the optics PUF keys and quantum that are prepared using Disordered Media that Sebastianus A. Goorden et al. are proposed
Light builds quantum authentication system, and there is publication date in the later stage on April 20th, 2016 again, and the China of Publication No. CN105515779A is specially
Sharp document discloses a kind of quantum security certification system based on optics PUF, these quantum authentication systems, which improve, to be made to recognize
Card system is easier Project Realization and cost is lower.
However, the volume of these quantum authentication systems is all very huge, the practical of them is limited.Therefore, one is designed
Quantum authentication system of the kind with smaller size smaller is necessary to the practical of quantum authentication.
Utility model content
In order to overcome quantum authentication system bulky, it is impossible to which practical deficiency, the utility model provide a kind of small-sized
The device products of commercial criterion may be employed in the quantum authentication system of change, the system, can also reduce the cost of system.
Technical solution is used by the utility model solves its technical problem：
A kind of quantum authentication system of miniaturization, it is characterised in that：Quantum authentication light path is folded simultaneously on three-dimensional
Using cage light path system, reduce light path volume；It is whole to include at least level 0, first layer, the second layer from top to bottom, totally three
Layer, wherein：
Level 0, for placing PUF keys；
First layer, for placing the light path for generating monochromatic light beamlet and being modulated to single photon Beam Wave-Front, to PUF keys
The light path that spoon is illuminated；
The second layer, for placing the light path to the imaging of PUF keys and the demodulation light path of certification.
The level 0 is set there are one automatically controlled two-dimension translational platform, and PUF keys, PUF keys are placed on automatically controlled two-dimension translational platform
Corresponding level 0 bottom offers light-emitting window immediately below spoon.
In the first layer, laser head, speculum I, object lens, lens I, attenuation are sequentially placed into according to the transmission direction of laser
Piece group, Amici prism I；Laser in the transmission direction of Amici prism I by being provided with reflective slms；Laser passes through
The direction crossed after Amici prism I reflections is placed with lens II and light emitting diode, and light emitting diode is located in the focus of lens II；
The opposite side of the Amici prism I opposite with lens II and light emitting diode is provided with Amici prism II, and Amici prism II is located at the
The underface of the light-emitting window of zero layer is provided with lens IV, the focus of lens IV between Amici prism II and the light-emitting window of level 0
Place sets PUF keys, and PUF keys are located at level 0 upper end；On the side of laser head, the control of reflective slms is set
Box I processed.Wherein, Amici prism I and Amici prism II is 1：1 Amici prism.
Speculum II, dichroscope are sequentially placed according to the transmission direction of light in the second layer, the light of dichroscope is anti-
Penetrate on direction and be disposed with lens III and CCD camera, CCD camera is located at the focal point of lens III, the focus of lens III and
The focus of lens IV overlaps composition 4F systems；Be sequentially placed in dichroscope transmission direction transmissive spatial light modulator, pin hole,
Narrow band pass filter and photon counter；The light reflection that dichroscope sends light emitting diode, the light sent to laser head
Transmission.
The quantum authentication system is also additionally provided with third layer below the second layer, places and is used for for the in the third layer
The power supply and the control box II of the transmissive spatial light modulator used for the second layer that one layer of laser uses.
Above-mentioned quantum authentication system is filtered ambient light using binary channels narrow band pass filter, reduces ambient light
Influence to verification process should not necessarily be limited by quantum authentication system and be used in darkroom.
Above-mentioned quantum authentication system illuminates PUF keys using light emitting diode, using 4F imaging lens systems to PUF
Key is imaged, and image is gathered using CCD camera, and two-dimensional movement translation stage pair is controlled according to CCD camera imagery exploitation finder
PUF keys are accurately positioned.
Above-mentioned quantum authentication system can utilize computer or controller to control light path in imaging optical path and authentication registration light path
Between convert.
The quantum authentication system is when it is implemented, including registration and two processes of certification.
（1）It in two implementation processes of registration and certification, is initially required for first positioning PUF keys, position
Detailed process be：
First, laser is closed, and opens light emitting diode, opens CCD camera, the light warp that light emitting diode is sent
Lens II is transformed to directional light, and directional light, which passes through, is divided into two-beam after Amici prism I, wherein light beam by Amici prism II to
It is upper to reflect and be irradiated to PUF on the key after lens IV and binary channels narrow band pass filter；
By the light that PUF keys scatter by being reached after binary channels narrow band pass filter and lens IV and Amici prism II
The second layer, after the second layer is reflected by speculum II by dichroscope and lens III after be imaged in CCD camera, pass through control
Making the movement of automatically controlled two-dimensional movement translation stage makes the picture in CCD camera of the mark positions of PUF on the key appear in specific bit
It puts, this completes the position fixing process of PUF keys；
Light emitting diode and CCD camera are closed after the completion of positioning.
（2）After PUF key positioners, carrying out registration process is：
Laser is opened, at this point, light emitting diode is closed, the high-frequency pulse light that laser head is sent is by speculum I
It is expanded, is irradiated to after being then attenuated the attenuation of piece group in reflective slms, reflection-type by object lens and lens I after reflection
Spatial light modulator carries out light coding back reflection to Amici prism I, after the reflection by Amici prism I and Amici prism II
By being irradiated to PUF on the key after lens IV and binary channels narrow band pass filter；
The backscattered light of PUF keys after binary channels narrow band pass filter and lens IV and Amici prism II by entering
The second layer is reflected in the second layer by speculum II, then passes through dichroscope, transmissive spatial light modulator, pin hole and narrowband
Enter photon counter after bandpass filter；
Transmissive spatial light modulator is refocused light is scattered on pin hole, makes scattering light all by pin hole by photon meter
Number device record, reflective slms make scattering light focus on again the coding information and transmissive spatial light modulator of light
Demodulating information can match as coding-demodulating information pair, the coding-demodulating information pair is stored, so as to complete to PUF keys
Registration process.
（3）After PUF key positioners, the process of being authenticated is：
Laser is opened, at this point, light emitting diode is closed, the high-frequency pulse light that laser is sent is anti-by speculum I
It is expanded, is irradiated to after being then attenuated the attenuation of piece group in reflective slms, reflection-type is empty by object lens and lens I after penetrating
Between optical modulator coding information is chosen in coding-demodulating information pair of storage light is encoded, encoded light is anti-
PUF keys are irradiated to after Amici prism I, Amici prism II, lens IV, binary channels narrow band pass filter are passed sequentially through after penetrating
On；
The backscattered light of PUF keys after binary channels narrow band pass filter and lens IV and Amici prism II by entering
The second layer is reflected in the second layer by speculum II, then passes through dichroscope, transmissive spatial light modulator, pin hole and narrowband
Enter photon counter after bandpass filter；
Transmissive spatial light modulator chooses and the solution of the matched coding of reflective slms-demodulating information centering
Adjust code：If PUF keys be registration key, then the light after demodulation can be focused after completely by pin hole by photon counting
Device records；If PUF keys are not the keys of registration, then scattering light cannot again be focused on and led to completely by the demodulation code of selection
Needle passing hole is recorded by photon counter；So as to complete the verification process of PUF keys.
The beneficial effects of the utility model are：
The utility model can greatly reduce the volume of quantum authentication, be convenient for carrying；Meanwhile reduce the shadow of ambient light
It rings, sample need not be positioned in darkroom, and practicability is stronger.
Description of the drawings
Fig. 1 is the structural side view of the present invention.
Fig. 2 is the top view of the first layer structure in the present invention.
Fig. 3 is the top view of the second layer structure in the present invention.
Fig. 4 is the top view of third layer structure in the present invention.
Wherein, reference numeral is：1 is laser head, and 2 be speculum I, and 3 be object lens, and 4 be lens I, and 5 be attenuator group, and 6 are
Amici prism I, 7 be lens II, and 8 be light emitting diode, and 9 be reflective slms, and 10 be Amici prism II, and 11 be control
Box I processed, 12 be speculum II, and 13 be dichroscope, and 14 be transmissive spatial light modulator, and 15 be pin hole, and 16 be photon counting
Device, 17 be lens III, and 18 be CCD camera, 19 power supply to be used for first layer laser, and 20 box II in order to control, 21 be lens
IV, 22 be automatically controlled two-dimension translational platform, and 23 be PUF keys, and 24 be narrow band pass filter, and 25 filter for binary channels narrow-band bandpass
Piece.
Specific embodiment
As shown in Figs 1-4, a kind of quantum authentication system of miniaturization, quantum authentication light path is folded simultaneously on three-dimensional
Using cage light path system, reduce light path volume；It is whole to be divided into level 0, first layer, the second layer from top to bottom, totally three layers,
In：
Level 0, for placing PUF keys 23；
First layer, for placing the light path for generating monochromatic light beamlet and being modulated to single photon Beam Wave-Front, to PUF keys
The light path that spoon 23 is illuminated；
The second layer, for placing the light path to the imaging of PUF keys 23 and the demodulation light path of certification.
The level 0 is set there are one automatically controlled two-dimension translational platform 22, and PUF keys 23 are placed on automatically controlled two-dimension translational platform 22,
Corresponding level 0 bottom offers light-emitting window immediately below PUF keys 23, and the optical filtering of binary channels narrow-band bandpass is inlaid on light-emitting window
Piece 25.
In the first layer, laser head 1, speculum I 2, object lens 3, lens I are sequentially placed into according to the transmission direction of laser
4th, attenuator group 5,1：1 Amici prism I 6, reflective slms 9, Amici prism II 10；In Amici prism I 6
One side be disposed with lens II 7 and a light emitting diode 8, light emitting diode 8 is located in the focus of lens II 7,
A lens II 10 is placed in the surface of Amici prism I 6, and lens II 10 is located at the underface of the light-emitting window of level 0,
The focal point of lens II 10 places PUF keys 23；On the side of laser head 1, the control of reflective slms 9 is set
Box I 11.The size of first layer is 23*22*5 cm.
In the second layer speculum II 12, dichroscope 13, dichroscope 13 are sequentially placed according to the transmission direction of light
Light reflection direction side be disposed with lens III 17 and CCD camera 18, CCD camera 18 is located at the coke of lens III 17
At point；The transmission direction side of dichroscope 13 is sequentially placed transmissive spatial light modulator 14, pin hole 15, narrow-band bandpass and filters
Piece 24 and photon counter 16.Second layer size is 23*22*4 cm.
The quantum authentication system is also additionally provided with third layer below the second layer, places and is used for for first layer in third layer
The power supply 19 and the control box II 20 of the transmissive spatial light modulator 14 used for the second layer that laser uses.Third layer
Size is 23*22*3.5 cm.
According to the quantum authentication system that said structure is realized, include registration and two implementation processes of certification at work.
（1）Start to be required for first to position PUF keys 23 in two implementation Process, the detailed process of positioning is：
Laser 1 is closed, opens light emitting diode 8, opens CCD camera 18, the light that light emitting diode 8 is sent is transformed to put down through lens II 7
Row light, through Amici prism I 6 after be split prism II 10 upwards reflection and through lens 21 and binary channels narrow band pass filter
It is irradiated to after 25 on PUF keys 23, by binary channels narrow band pass filter 25 and lens 21 and is divided by the light that PUF keys 23 scatter
The second layer is reached after light prism II 10, by dichroscope 13 and lens III 17 after the second layer is reflected by speculum II 12
It is imaged afterwards in CCD camera 18, by software the movement of automatically controlled two-dimension translational platform 22 is controlled to make the mark position on PUF keys 23
The picture in CCD camera 18 appear in designated position.This completes the position fixing process of PUF keys 23.After the completion of positioning
Close light emitting diode 8 and CCD camera 18.
（2）It can be carried out registration after being positioned to PUF keys 23 and verification process, registration process be：Close luminous two
Pole pipe 8 opens laser 1, and the high-frequency pulse light that laser 1 is sent is expanded after being reflected by speculum I 2 by object lens 3 and lens I 4, so
After be attenuated piece group 5 decay after be irradiated in reflective slms 9, reflective slms 9 compile light
Code back reflection, by being filtered after the reflection of Amici prism I 6 and Amici prism II 10 by lens 21 and narrow-band bandpass binary channels
PUF is irradiated to after piece 25 on the key, the backscattered lights of PUF keys by binary channels narrow band pass filter 25, lens IV 21 with
And reflected after Amici prism II 10 into the second layer in the second layer by speculum II 12, then pass through dichroscope 13, transmission
Enter photon counter 16 after type spatial light modulator 14, pin hole 15 and narrow band pass filter 24.The light modulation of transmission-type space
Device 14 can refocus scattering light on pin hole 15, scattering light be made all to be recorded by pin hole 15 by photon counter 16, instead
Emitting spatial light modulator 9 makes the coding information and transmissive spatial light modulator 14 of light in the demodulation letter that scattering light focuses on again
Breath can be matched as coding-demodulating information pair, store these information pair, this completes the registration processes to PUF keys 23.
（3）It is also the positioning for first carrying out PUF keys during certification, position fixing process is consistent with the description of front, is carried out after positioning
Verification process, verification process are：Open laser 1, the high-frequency pulse light that laser 1 is sent reflected by speculum 2 after by object lens 3 and thoroughly
Mirror I 4 is expanded, and is then attenuated after piece group 5 decays and is irradiated in reflective slms 9, reflective slms
9 choose coding information in coding-demodulating information pair of storage encodes light, is then reflected through Amici prism I 6,
Again by being irradiated to after lens IV 21 and binary channels narrow band pass filter 25 on sample after the reflection of Amici prism II 10,
The backscattered light of PUF keys 23 is laggard by binary channels narrow band pass filter 25 and lens IV 21 and Amici prism II 10
Enter the second layer, reflected in the second layer by speculum II 12, then by dichroscope 13 and transmissive spatial light modulator 14 with
And enter photon counter 16 after pin hole 15 and narrow band pass filter 24.Transmissive spatial light modulator 14 chooses and reflection-type
The demodulation code of 9 matched coding of spatial light modulator-demodulating information centering, if PUF keys are the keys of registration, then demodulation
Light afterwards is recorded after being focused by pin hole 15 by photon counter 16 completely, if PUF keys are not the keys of registration,
Scattering light cannot again be focused on and recorded completely by pin hole 15 by photon counter 16 by the demodulation code so chosen.Here it is
The verification process of PUF keys.
Claims (2)
1. a kind of quantum authentication system of miniaturization, it is characterised in that：It is whole include at least from top to bottom level 0, first layer,
The second layer, totally three layers, wherein：
PUF keys are placed in the level 0（23）Automatically controlled two-dimension translational platform（22）, place PUF keys（23）Position pair
The level 0 bottom answered offers light-emitting window, and binary channels narrow band pass filter is inlaid on light-emitting window（25）；
In the first layer, laser head is sequentially placed into according to the transmission direction of laser（1）, speculum I（2）, object lens（3）, lens I
（4）, attenuator group（5）, Amici prism I（6）, laser is by Amici prism I（6）Transmission direction on be provided with reflective spatial
Optical modulator（9）；Laser passes through Amici prism I（6）Direction after reflection is placed with lens II（7）And light emitting diode（8）, hair
Optical diode（8）Positioned at lens II（7）Focus on；With lens II（7）And light emitting diode（8）Opposite Amici prism I（6）
Opposite side be provided with Amici prism II（10）, Amici prism II（10）Positioned at the underface of the light-emitting window of level 0, rib is divided
Mirror II（10）Lens IV is provided between the light-emitting window of level 0（21）, lens IV（21）Focal point set PUF keys
（23）, PUF keys（23）Positioned at level 0 upper end；In laser head（1）Side set reflective slms（9）Control
Box I processed（11）；
In the second layer, speculum II is sequentially placed according to the transmission direction of light（12）, dichroscope（13）, dichroscope
（13）Light reflection direction on be disposed with lens III（17）And CCD camera（18）, CCD camera（18）Positioned at lens III
（17）Focal point, lens III（17）Focus and lens IV（21）Focus overlap composition 4F systems；Dichroscope（13）Thoroughly
It penetrates and transmissive spatial light modulator is sequentially placed on direction（14）, pin hole（15）, narrow band pass filter（24）And photon counting
Device（16）.
2. the quantum authentication system minimized according to claim 1, it is characterised in that：It is small-sized according to claim 1
The quantum authentication system of change, it is characterised in that：Also third layer is provided below in the second layer in the quantum authentication system, and described
The power supply used for first layer laser is placed in three layers（19）And the transmission-type space light modulation used for the second layer
Device（14）Control box II（20）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720885111.4U CN207427176U (en) | 2017-07-20 | 2017-07-20 | A kind of miniaturization quantum authentication system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541964A (en) * | 2021-07-17 | 2021-10-22 | 太原理工大学 | Double-pass interference type identity verification system based on photorefractive crystal PUF |
| CN114564171A (en) * | 2022-03-04 | 2022-05-31 | 中国工程物理研究院电子工程研究所 | True random number generation method, device, electronic equipment, storage medium and system |
-
2017
- 2017-07-20 CN CN201720885111.4U patent/CN207427176U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541964A (en) * | 2021-07-17 | 2021-10-22 | 太原理工大学 | Double-pass interference type identity verification system based on photorefractive crystal PUF |
| CN114564171A (en) * | 2022-03-04 | 2022-05-31 | 中国工程物理研究院电子工程研究所 | True random number generation method, device, electronic equipment, storage medium and system |
| CN114564171B (en) * | 2022-03-04 | 2023-09-12 | 中国工程物理研究院电子工程研究所 | True random number generation method, true random number generation device, electronic equipment, storage medium and true random number generation system |
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