CN207884640U - A kind of attack apparatus for demonstrating - Google Patents
A kind of attack apparatus for demonstrating Download PDFInfo
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- CN207884640U CN207884640U CN201820323874.4U CN201820323874U CN207884640U CN 207884640 U CN207884640 U CN 207884640U CN 201820323874 U CN201820323874 U CN 201820323874U CN 207884640 U CN207884640 U CN 207884640U
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Abstract
The utility model discloses a kind of attack apparatus for demonstrating, the wavelength-division that the photosignal that first electro-optical system inputs can be synchronized to light and signal light by synchronizable optical Wavelength division multiplexing module demultiplexes, synchronizable optical and signal light to be separated, the synchronizable optical and signal light that detecting module separately detects the synchronizable optical Wavelength division multiplexing module input are intercepted and captured by front end, result of detection of the light source module based on front end intercepting and capturing detecting module is retransmitted by rear end, corresponding rear end light source is carried out to second electro-optical system to retransmit, or for according to default calibration feedback parameter, directly preset rear end light source is carried out to second electro-optical system to retransmit, and then show itself not assailable characteristic of quantum key distribution system by the attack apparatus for demonstrating.
Description
Technical field
The utility model is related to Quantum Secure Communication fields, more specifically, being related to a kind of attack apparatus for demonstrating.
Background technology
Quantum key distribution (QuantumKey Distribution, QKD) and the fundamental difference of classic key system are
It uses single photon or entangled photon pairs as the carrier of key, and by quantum-mechanical three big basic principles, (Heisenberg surveys not
Quasi- principle, measurement are collapsed theoretical, the unclonable law of quantum) ensure that can not the eavesdropping of the process, can not the property decoded, to carry
A kind of safer key code system is supplied.
In recent years, with the successive foundation of domestic and international major quantum communications try net, quantum key distribution system is
Start to march toward and be commercialized the stage of development, some corresponding attacking and defending demonstrations and safety detection demand also gradually highlight.Therefore how
Itself not assailable characteristic, which is shown, to seem and is highly desirable.
Utility model content
To solve the above-mentioned problems, technical solutions of the utility model provide a kind of attack apparatus for demonstrating, can be used for opening up
Itself not assailable characteristic of existing quantum key distribution system.
To achieve the goals above, the utility model provides the following technical solutions：
A kind of attack apparatus for demonstrating, is used for quantum key distribution system, and the quantum key distribution system includes having the
The transmitting terminal of one electro-optical system and receiving terminal with the second electro-optical system, the attack apparatus for demonstrating include：
Synchronizable optical Wavelength division multiplexing module, the photosignal for inputting the first electro-optical system synchronize light and signal
The wavelength-division of light demultiplexes, and synchronizable optical and signal light are separated；
Detecting module is intercepted and captured in front end, synchronizable optical and letter for separately detecting the synchronizable optical Wavelength division multiplexing module input
Number light；
Light source module is retransmitted in rear end, the result of detection for intercepting and capturing detecting module based on the front end, to second light
Electric system carries out corresponding rear end light source and retransmits, or presets calibration feedback parameter for basis, directly to second Opto-electrical Section
System carries out preset rear end light source and retransmits.
Preferably, in above-mentioned attack apparatus for demonstrating, the front end intercepts and captures detecting module and includes：Intercept and capture detection in signal light front end
Detecting module is intercepted and captured in module and synchronizable optical front end, is respectively used to detectable signal light and synchronizable optical；
Light source module is retransmitted in the rear end：Light source module is retransmitted in signal light rear end and light source is retransmitted in synchronizable optical rear end
Module, the rear end light source for being respectively used to signal light and synchronizable optical are retransmitted.
Preferably, in above-mentioned attack apparatus for demonstrating, further include：Strong photic blind attack light path, the strong photic blind attack light
Road is used to be emitted the attack optical signal of setting；
Wherein, the strong photic blind attack light path is connect with the first beam splitter；First beam splitter by described for attacking
It hits optical signal and the signal optical coupling that light source module is retransmitted is retransmitted in the signal rear end.
Preferably, in above-mentioned attack apparatus for demonstrating, the synchronizable optical Wavelength division multiplexing module includes：First wavelength division multiplexer,
First wavelength division multiplexer is used to synchronize the optical signal that first electro-optical system is emitted the wavelength-division of light and signal light
Demultiplexing, the port of output signal light connect the signal light front end and intercept and capture detecting module, and the port of outgoing synchronizable optical connects
It connects the synchronizable optical front end and intercepts and captures detecting module；
Second electro-optical system by the second wavelength division multiplexer respectively with the signal light rear end retransmit light source module with
And light source module connection is retransmitted in the synchronizable optical rear end.
Preferably, in above-mentioned attack apparatus for demonstrating, the synchronizable optical Wavelength division multiplexing module includes：First wavelength division multiplexer,
First wavelength division multiplexer is used to synchronize the optical signal that first electro-optical system is emitted the wavelength-division of light and signal light
Demultiplexing, the port of output signal light connect the control port of the first photoswitch, are emitted described in the port connection of synchronizable optical
Intercept and capture detecting module in synchronizable optical front end；
First conducting port of first photoswitch connects the first conduction terminal of the second photoswitch by the first delayer
Mouthful, the second conducting port connects the signal light front end and intercepts and captures detecting module；
The signal light rear end is retransmitted the output end of module and is connect with the second conducting port of second photoswitch；
The synchronizable optical Wavelength division multiplexing module also the second wavelength division multiplexer, second electro-optical system pass through second wave
Division multiplexer is retransmitted module with the control port of the second photoswitch and the synchronizable optical rear end respectively and is connect；
Wherein, in same photoswitch, control port is based on switch control signal port is connected with first connecting and with second
Port is connected to disconnect, or disconnects with the first conducting port and is connect with the second conducting port.
Preferably, it is arranged between above-mentioned attack apparatus for demonstrating, second photoswitch and second wavelength division multiplexer
There are the 4th photoswitch, the control port of the 4th photoswitch to be connect with the control port of second photoswitch, first leads
Go side mouthful is connect with second wavelength division multiplexer；
Second conducting port connection signal light referential calibration module of the 4th photoswitch, the signal light referential
Calibration module is for calibrating signal light.
Preferably, it is arranged between above-mentioned attack apparatus for demonstrating, second photoswitch and second wavelength division multiplexer
There are the 4th photoswitch, the control port of the 4th photoswitch to be connect with the control port of second photoswitch, first leads
Go side mouthful is connect with second wavelength division multiplexer；
Second conducting port of first photoswitch and the signal light front end are provided with the between intercepting and capturing detecting module
Five photoswitches；The control port of 5th photoswitch is intercepted and captured detecting module with the signal light front end and is connect, the first conducting
Port is connect with the second conducting port of first photoswitch；
Second conducting port of the 4th photoswitch connects the second conducting port of the 5th photoswitch.
Preferably, in above-mentioned attack apparatus for demonstrating, the signal light front end is intercepted and captured detecting module and is decoded for signal light polarization
Module；
It is signal light polarization encoder module that light source module is retransmitted in the signal light rear end.
Preferably, in above-mentioned attack apparatus for demonstrating, further include：Strong photic blind attack light path, the strong photic blind attack light
Road is used to be emitted the attack optical signal of setting；The strong photic blind attack light path is connect with the first beam splitter；First beam splitting
Device is used to the attack optical signal and the signal rear end retransmitting the signal optical coupling that light source module is retransmitted；
The strong photic blind attack light path includes：First attack laser, second attack laser, polarization-maintaining beam splitter and
Attenuator；
The laser light signal of the first attack laser and the second attack laser emitting is by the polarization-maintaining point
After the coupling of beam device, the attack optical signal is emitted by the decaying of the attenuator.
Preferably, in above-mentioned attack apparatus for demonstrating, it is signal light phase decoding that detecting module is intercepted and captured in the signal light front end
Module；
It is signal light phase code module that light source module is retransmitted in the signal light rear end.
Preferably, in above-mentioned attack apparatus for demonstrating, m- phase when detecting module is signal light is intercepted and captured in the signal light front end
Decoder module；
M- phase code module when light source module is signal light is retransmitted in the signal light rear end.
Preferably, in above-mentioned attack apparatus for demonstrating, further include：Strong photic blind attack light path, the strong photic blind attack light
Road is used to be emitted the attack optical signal of setting；The strong photic blind attack light path is connect with the first beam splitter；First beam splitting
Device is used to the attack optical signal and the signal rear end retransmitting the signal optical coupling that light source module is retransmitted；
The strong photic blind attack light path includes：Attack laser and attenuator；The attack laser emitting swashs
Optical signal is emitted the attack optical signal by the decaying of the attenuator.
Preferably, in above-mentioned attack apparatus for demonstrating, the synchronizable optical front end intercepts and captures detecting module and includes：Beam splitter and
PIN type photoelectric tube；The beam splitter is used to incident synchronizable optical being divided into two-way, and the incident PIN type photoelectric tube, another all the way
Light source module is retransmitted in the incident synchronizable optical rear end in road；
It includes the second delayer that light source module is retransmitted in the synchronizable optical rear end.
Preferably, in above-mentioned attack apparatus for demonstrating, it includes PIN type photoelectric tube that detecting module is intercepted and captured in the synchronizable optical front end；
Light source module is retransmitted in the synchronizable optical rear end：Synchronous light source and third delayer；The synchronous light source
Driving electric signal is connect with the detection electric signal of the PIN type photoelectric tube, and laser and the third of synchronous light source output are delayed
Device connects.
By foregoing description it is found that the attack demonstration dress for the quantum key distribution system that technical solutions of the utility model provide
In setting, the photosignal that the first electro-optical system inputs can be synchronized by light and signal by synchronizable optical Wavelength division multiplexing module
The wavelength-division of light demultiplexes, and synchronizable optical and signal light are separated, and intercepting and capturing detecting module by front end separately detects the synchronization
The synchronizable optical and signal light of optical wavelength division multiplexing module input retransmit light source module by rear end and are based on front end intercepting and capturing detection
The result of detection of module carries out corresponding rear end light source to second electro-optical system and retransmits, or for anti-according to default calibration
Feedforward parameter directly carries out preset rear end light source to second electro-optical system and retransmits, and then passes through the attack apparatus for demonstrating
Show itself not assailable characteristic of quantum key distribution system.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of structural schematic diagram for attack apparatus for demonstrating that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides；
Fig. 4 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides；
Fig. 5 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides；
Fig. 6 is a kind of principle signal of the attack apparatus for demonstrating for polarization code encoding/decoding mode that the utility model embodiment provides
Figure；
Fig. 7 is a kind of principle signal of the attack apparatus for demonstrating for phase code encoding/decoding mode that the utility model embodiment provides
Figure；
Fig. 8 be the utility model embodiment provide it is a kind of when m- phase code encoding/decoding mode attack apparatus for demonstrating original
Manage schematic diagram；
Fig. 9 be the synchronizable optical front end of a kind of attack apparatus for demonstrating that the utility model embodiment provides intercept and capture detecting module and
The principle schematic of light source module is retransmitted in synchronizable optical rear end；
Figure 10 is a kind of method flow diagram for referential calibration that the utility model embodiment provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
With reference to figure 1, Fig. 1 is a kind of structural schematic diagram for attack apparatus for demonstrating that the utility model embodiment provides, shown
It attacks apparatus for demonstrating and is used for QKD system, the QKD system includes transmitting terminal Alice and receiving terminal BOb, the transmitting terminal
There is Alice the first electro-optical system 111, the receiving terminal BOb to have the second electro-optical system 121.
Apparatus for demonstrating 130 is attacked shown in Fig. 1 includes：Synchronizable optical Wavelength division multiplexing module 132 is used for the first electro-optical system
The photosignal of 111 inputs synchronizes the wavelength-division demultiplexing of light and signal light, and synchronizable optical and signal light are separated；Before
Detecting module 131 is intercepted and captured at end, for separately detecting the synchronizable optical and signal that the synchronizable optical Wavelength division multiplexing module 132 inputs
Light；Light source module 133 is retransmitted in rear end, the result of detection for intercepting and capturing detecting module 131 based on the front end, to second light
Electric system 121 carries out corresponding rear end light source and retransmits, or presets calibration feedback parameter for basis, directly to second photoelectricity
System 121 carries out preset rear end light source and retransmits.
The signal light that light source module 133 is retransmitted and synchronizable optical are retransmitted in rear end can pass through synchronizable optical Wavelength division multiplexing module
132 coupled after be sent to second electro-optical system 121.First electro-optical system 111 and the second electro-optical system 121 pass through
Quantum channel is connect with the attack apparatus for demonstrating.
Optionally, the front end intercepting and capturing detecting module 131 includes：Intercept and capture detecting module a and synchronizable optical in signal light front end
Detecting module c is intercepted and captured in front end, is respectively used to detectable signal light and synchronizable optical；Light source module 133 is retransmitted in the rear end：Letter
Light source module b is retransmitted in number light rear end and light source module d is retransmitted in synchronizable optical rear end, after being respectively used to signal light and synchronizable optical
Light source is held to retransmit.
As shown in Figure 1, being attacked in apparatus for demonstrating described in the utility model embodiment, the synchronizable optical Wavelength division multiplexing module
132 include：First wavelength division multiplexer WDM1, the first wavelength division multiplexer WDM1 is for going out first electro-optical system 111
The optical signal penetrated synchronizes the wavelength-division demultiplexing of light and signal light, and the port of output signal light connects the signal light front end
Detecting module a is intercepted and captured, the port of outgoing synchronizable optical connects the synchronizable optical front end and intercepts and captures detecting module c；Second photoelectricity
System 121 retransmits light source module b and the synchronizable optical with the signal light rear end respectively by the second wavelength division multiplexer WDM2
Light source module d connections are retransmitted in rear end.Can be carried out according to demand in the utility model embodiment, between each section optical fiber connection or
It is free light field connection.
With reference to figure 2, Fig. 2 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides, Fig. 2
Further include on the basis of shown 130 embodiment shown in Fig. 1 of attack apparatus for demonstrating：Strong photic blind attack light path e, it is described strong photic
Blind attack light path e is used to be emitted the attack optical signal of setting.Wherein, the strong photic blind attack light path e and the first beam splitter BS1
Connection；The first beam splitter BS1 is used to the attack optical signal and the signal rear end retransmitting what light source module 133 was retransmitted
Signal optical coupling retransmits the synchronizable optical that light source module 133 is retransmitted with the signal rear end again after the two coupling and passes through synchronous light wave
It is sent to second electro-optical system 121 after dividing Multiplexing module 132 to be coupled.
Relative to mode shown in Fig. 1, processing of the mode shown in Fig. 2 for signal light, in addition to being attacked possessed by Fig. 1
Further include that can be switched to normal mode outside pattern, the variation of the front and back system mode of observation attack can be facilitated, in order to better
Show attack effect.
With reference to figure 3, Fig. 3 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides, Fig. 3
Further comprise on the basis of shown 130 embodiment shown in Fig. 1 of attack apparatus for demonstrating：First photoswitch K1 and the second light
Switch K2.
The synchronizable optical Wavelength division multiplexing module includes：First wavelength division multiplexer WDM1, the first wavelength division multiplexer WDM1
Optical signal for first electro-optical system 111 to be emitted synchronizes the wavelength-division demultiplexing of light and signal light, outgoing letter
The port of number light connects the control port 1 of the first photoswitch K1, and the port of outgoing synchronizable optical connects the synchronizable optical front end and cuts
Obtain detecting module c.The first conducting port 2 of the first photoswitch K1 passes through first delayer Y1 the second photoswitches of connection K2's
First conducting port 2, the second conducting port 3 connect the signal light front end and intercept and capture detecting module a.The signal light rear end weight
The output end of hair module b is connect with the second conducting port 3 of the second photoswitch K2.The synchronizable optical Wavelength division multiplexing module
132 also the second wavelength division multiplexer WDM2, second electro-optical system 121 is by the second wavelength division multiplexer WDM2 respectively with the
Module d connections are retransmitted in the control port 1 of two photoswitch K2 and the synchronizable optical rear end.Wherein, in same photoswitch, control terminal
Mouthful 1 connect with the first conducting port 2 based on switch control signal and is connected the disconnection of port 3 with second, or with the first conduction terminal
Mouth 2 is disconnected and is connect with the second conducting port 3.
In mode shown in Fig. 3, the first photoswitch K1 and the second photoswitch K2 constitute signal light light path handover module.It is right
The signal light that first wavelength division multiplexer WDM1 of synchronizable optical Wavelength division multiplexing module is separated, is opened by the first photoswitch K1 and the second light
K2 is closed to carry out normal light path and attack the hand-off process of light path.If without attack, two photoswitches are all switched to normally
Pattern, the i.e. control port 1 of photoswitch are connected with the first conducting port 2 so that signal light enters normal light path；If carried out
It attacks, then two photoswitches are all switched to attack mode, i.e. the control port 1 of photoswitch is connected with the second conducting port 3, makes
It obtains signal light and enters attack light path.The switching selection of different mode can be arranged in the host computer with controller, can also
Setting button or knob are to adjust the conducting device of photoswitch in attacking apparatus for demonstrating, to realize the gating of different light paths.
On the one hand, it is synchronous to intercept and capture the part that the detection synchronizable optical of detecting module 131 Wavelength division multiplexing module 132 separates for front end
Light, it is synchronous with the clock of transmitting terminal Alice for attacking apparatus for demonstrating.On the other hand, the detection letter of detecting module 131 is intercepted and captured in front end
Number light light path handover module is switched to the signal light in attack light path, is intercepted and captured and detection transmitting terminal for attacking apparatus for demonstrating
The signal light that Alice is sent.For signal optical detection, carried out using principle identical with receiving terminal BOb.Wherein it should be noted that
It is that the step of receiving terminal BOb detections and the front end of attack apparatus for demonstrating are intercepted and captured detecting module detectable signal light, can be related to includes
(for example polarization compiles solution for delayed sweep (position alignment of signal light and detector make detect counting rate maximum), referential calibration
The polarization feedback of code system, phase coding/decoding system and when m- phase coding/decoding system phase feedback).
The signal rear end retransmits light source module 133 and intercepts and captures the result of detection progress of detecting module 131 accordingly according to front end
Rear end light source retransmit.If for example intercepting and capturing detecting module 131 for front end and detecting certain quantum stateI is desirable 0,1,2,
Or one of 3, then light source module 133 is retransmitted then by controlling laser or modulation module in rear end, retransmit corresponding quantum stateJ desirable one of 0,1,2 or 3, and i and j have correspondence, such as i=j.
With reference to figure 4, Fig. 4 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides, Fig. 4
Further comprise on the basis of shown 130 embodiment shown in Fig. 3 of attack apparatus for demonstrating：4th photoswitch K4 and signal light
Referential calibration module f.
It is provided with the 4th photoswitch K4 between the second photoswitch K2 and the second wavelength division multiplexer WDM2, described
The control port 1 of four photoswitch K4 is connect with the control port 1 of the second photoswitch K2, first conducting port 2 with it is described
Second wavelength division multiplexer WDM2 connections.The second conducting 3 connection signal light referential calibrating die of port of the 4th photoswitch K4
Block f, the signal light referential calibration module f are for calibrating signal light.The device of signal light referential calibration module f
Structure intercepts and captures detecting module 131 with front end.
In mode shown in Fig. 4, it further includes signal light referential calibration module f that light source module 133 is retransmitted in rear end, in order to enable
The repeating transmission state that signal light referential calibration module f is sentReferential (otherwise, the attack demonstration dress of receiving terminal BOb can be matched
Set repeating transmissionIt is reformed into receiving terminal BOb receptionsSuch as polarizing coding/decoding system, signal beche-de-mer without spike
Examine be calibration module f includes that Polarization Controller carries out polarization feedback calibration；For phase coding/decoding system, the calibration of rear end referential
Module includes that phase shifter carries out phase feedback calibration.Rear end retransmit light source module 133 can according to the needs of certain calibration feedbacks,
The light source for directly carrying out specific rear end is retransmitted.Such as in order to assist foregoing " delay compensation module " to be mended into line delay
It repays, specific repeating transmission light can be sent, for example send periodicallyAnd
With reference to figure 5, Fig. 5 is the structural schematic diagram for another attack apparatus for demonstrating that the utility model embodiment provides, Fig. 5
Further comprise on the basis of shown 130 embodiment shown in Fig. 3 of attack apparatus for demonstrating：4th photoswitch K4 and the 5th light
Switch K5.
It is provided with the 4th photoswitch K4 between the second photoswitch K2 and the second wavelength division multiplexer WDM2, described
The control port 1 of four photoswitch K4 is connect with the control port 1 of the second photoswitch K2, first conducting port 2 with it is described
Second wavelength division multiplexer WDM2 connections.The second conducting port 3 of the first photoswitch K1 is intercepted and captured with the signal light front end to be visited
It is provided with the 5th photoswitch K5 between survey module a.The control port 1 of the 5th photoswitch K5 is intercepted and captured with the signal light front end
Detecting module a connections, the first conducting port 2 are connect with the second conducting port 3 of the first photoswitch K1.4th light
The second conducting port 3 of switch K4 connects the second conducting port 3 of the 5th photoswitch K5.Described in the utility model embodiment
Polarization code encoding/decoding mode may be used in attack apparatus for demonstrating.At this point, it is that signal light is inclined that detecting module a is intercepted and captured in the signal light front end
Shake decoder module；It is signal light polarization encoder module that light source module b is retransmitted in the signal light rear end, and specific implementation can be as
Shown in Fig. 6.It should be noted that for polarizing code encoding/decoding mode, detecting module a and signal light rear end are intercepted and captured in signal light front end
It includes but is not limited to mode shown in Fig. 6 to retransmit light source module b, and it can be random polarization that detecting module a is intercepted and captured in signal light front end
Coding/decoding module, it can be arbitrary signal light polarization coding module that light source module b is retransmitted in signal light rear end.
With reference to figure 6, Fig. 6 is a kind of attack apparatus for demonstrating for polarization code encoding/decoding mode that the utility model embodiment provides
Principle schematic, the realization method that detecting module a is intercepted and captured in signal light front end can be as shown in Fig. 6 a and Fig. 6 c in Fig. 6, signal light
The realization method that light source module b is retransmitted in rear end can be as shown in Fig. 6 b in Fig. 6.In the embodiment, demonstrates and fill when the attack
When setting with strong photic blind supply light path e, the realization method of strong photic blind supply light path e can be as shown in Fig. 6 d in Fig. 6.
Detecting module a is intercepted and captured in signal light front end shown in Fig. 6 a has the second beam splitter BS2, the first Polarization Controller EPC_#
1, the second Polarization Controller EPC_#2, the first polarization beam apparatus PBS1, the second polarization beam apparatus PBS2 and four detectors
(DH1, DV1, DP1 and DN1).In the utility model embodiment, Polarization Controller can be electric Polarization Controller, but not limit to
In electric Polarization Controller.Second beam splitter BS2 is used to obtain incident signal light, incident signal light is divided into two-way, all the way
By the incident first polarization beam apparatus PBS1 of the first Polarization Controller EPC_#1, another way is polarized by described second
The incident second polarization beam apparatus PBS2 of controller EPC_#2.The first polarization beam apparatus PBS1 is by incident signal all the way
Light is divided into two-way, is detected respectively by two detectors (DH1 and DV1).The second polarization beam apparatus PBS2 will be incident
Another way signal light be divided into two-way, detected respectively by another two detector (DP1 and DN1).In the embodiment, the
The light incident side of two beam splitter BS2 is the signal light input end that detecting module a is intercepted and captured in signal light front end.
Light source module b tools are retransmitted in signal light rear end shown in Fig. 6 b, and there are four laser (LH, LV, LP and LN), the first polarization-maintainings
Polarization beam apparatus PMPBS1, the second polarization-maintaining polarization beam apparatus PMPBS2, the first polarization-maintaining beam splitter PMBS1, third Polarization Controller
EPC_#3 and the first attenuator S1.Four lasers intercept and capture the detection knot of detecting module a based on the signal light front end
Fruit is emitted optical signal.What the first polarization-maintaining polarization beam apparatus PMPBS1 was used to two lasers (LH and LV) being emitted
Optical signal couples.The light that the second polarization-maintaining polarization beam apparatus PMPBS2 is used to laser described in another two (LP and LN) being emitted
Signal couples.The first polarization-maintaining beam splitter PMBS1 is used for the first polarization-maintaining polarization beam apparatus PMPBS1 and described second
The optical signal coupling of polarization-maintaining polarization beam apparatus PMPBS2 outgoing, the optical signal being emitted by the first polarization-maintaining beam splitter PMBS1
It is emitted after S1 after the third Polarization Controller EPC_#3 and first attenuator successively.The third Polarization Controller
The light exit side of EPC_#3 is the light exit side that light source module b is retransmitted in the signal light rear end.
Detecting module a is intercepted and captured in signal light front end shown in Fig. 6 c has the 4th Polarization Controller EPC_#4, the second polarization-maintaining beam splitting
Device PMBS2, third polarization-maintaining polarization beam apparatus PMPBS3, the 4th polarization-maintaining polarization beam apparatus PMPBS4 and four detectors (DH2,
DV2, DP2 and DN2).Incident signal light passes through incident second polarization-maintaining beam splitters of the 4th Polarization Controller EPC_#4
PMBS2, by the second polarization-maintaining beam splitter, PMBS2 points are two-way, 45 degree of the two-way polarization direction relative rotation which separates.
The road signal light is divided into two-way by incidence third polarization-maintaining polarization beam apparatus PMPBS3, third polarization-maintaining polarization beam apparatus PMPBS3 all the way
It is detected respectively by another two detector (DP2 and DN2), another way the 4th polarization-maintaining polarization beam apparatus PMPBS4 of incidence, the
The road signal light is divided into two-way by four polarization-maintaining polarization beam apparatus PMPBS4 to be carried out by another two detector (DP2 and DN2) respectively
Detection.In the embodiment, the light incident side of the 4th Polarization Controller EPC_#4 is the light that detecting module a is intercepted and captured in signal light front end
Input terminal.
There is strong photic blind supply light path e shown in Fig. 6 d the first attack laser L2, the second attack laser L3, third to protect
Inclined beam splitter PMBS3 and third attenuator S3.The first attack laser L2 and the second attack laser L3 outgoing
Laser light signal after third polarization-maintaining beam splitter PMBS3 couplings, be emitted by the decaying of the third attenuator S3
The attack optical signal.In the embodiment, the light that the light exit side of third attenuator S3 is strong photic blind attack light path e goes out
Penetrate end.In which, passed through using 2 continuous wave lasers as attack laser L2 and L3 using continuous laser attack option
Two beam laser coupleds are all the way by one polarization-maintaining polarization beam apparatus.The wavelength difference △ pm of 2 lasers, here △ values need to protect
The correlation time for demonstrate,proving 2 continuous wave lasers is less than signal pulse width (for example being more than 500pm).
Apparatus for demonstrating is attacked described in the utility model embodiment, and phase code encoding/decoding mode may be used.At this point, the signal
It is signal light phase decoding module that detecting module a is intercepted and captured in light front end；It is signal light phase that light source module b is retransmitted in the signal light rear end
Position coding module, specific implementation can be as shown in Figure 7.It should be noted that for phase code encoding/decoding mode, before signal light
It includes but is not limited to mode shown in Fig. 7 that end, which intercepts and captures detecting module a and signal light rear end and retransmits light source module b, before signal light
It can be arbitrary phase coding/decoding module that detecting module a is intercepted and captured at end, and it can be arbitrary signal that light source module b is retransmitted in signal light rear end
Light phase coding module.
With reference to figure 7, Fig. 7 is a kind of attack apparatus for demonstrating for phase code encoding/decoding mode that the utility model embodiment provides
Principle schematic, the realization method that detecting module a is intercepted and captured in signal light front end can be as shown in Fig. 7 a and Fig. 7 c in Fig. 7, signal light
The realization method that light source module b is retransmitted in rear end can be as shown in Fig. 7 b and Fig. 7 d in Fig. 7.In the embodiment, when the attack
When apparatus for demonstrating has strong photic blind supply light path e, the realization method of strong photic blind supply light path e can be such as Fig. 7 e institutes in Fig. 7
Show.
Detecting module a is intercepted and captured in signal light front end shown in Fig. 7 a, and there is the 5th Polarization Controller EPC_#5, second phase to modulate
Device PM2, the first phase shifter PS1 and two detectors (D1 and D2).Incident signal light passes sequentially through the 5th Polarization Controller
EPC_#5, second phase modulator PM2 and the first phase shifter PS1, in the first phase shifter, PS1 points are two-way, pass through two respectively
A detector detection.In the embodiment, the light incident side of the 5th Polarization Controller EPC_#5 is that detection is intercepted and captured in signal light front end
The signal light input end of module a.
Light source module b is retransmitted in signal light rear end shown in Fig. 7 b has laser L4, the second phase shifter PS2, third phase tune
Device PM3 and the 4th attenuator S4 processed.Laser L4 intercepts and captures the result of detection of detecting module a based on the signal light front end, goes out
Optical signal is penetrated, which passes sequentially through the second phase shifter PS2, third phase modulator PM3 and the 4th attenuator S4, finally
It is emitted by the light exit side of the 4th attenuator S4.In which, the light exit side outgoing of the 4th attenuator S4 is after signal light
The light exit side of light source module b is retransmitted at end.
Detecting module a is intercepted and captured in signal light front end shown in Fig. 7 c has the 4th phase-modulator PM4, first annular device H1, the
Three beam splitter BS3, third phase shifter PS3, two faraday rotation mirrors (F1 and F2) and two detectors (D3 and D4).It is incident
Signal light by the 4th phase-modulator PM4 enter first annular device H1 port 1, the port 3 of the first annular device H1
The signal light all the way of outgoing is detected by detector D3, the another way signal of the outgoing of port 2 of the first annular device H1
Third beam splitter BS3 points are two-way after light passes through, the two paths of signals light respectively by a faraday rotation mirror after, again
After the BS3 couplings of third beam splitter, detected by detector D4 described in another.Wherein, third phase shifter PS3 is arranged
Between faraday rotation mirror F2 and the light path of third beam splitter BS3.In which, the light of the 4th phase-modulator PM4 inputs
End is the light input end that detecting module a is intercepted and captured in signal light front end.
Light source module b is retransmitted in signal light rear end shown in Fig. 7 d has laser L5, the second circulator H2, the 4th beam splitter
BS4, the 4th phase shifter PS4, two faraday rotation mirrors (F3 and F4), the 5th phase-modulator PM5 and the 5th attenuator S5.
Laser L5 intercepts and captures the result of detection of detecting module a based on the signal light front end, is emitted optical signal.The laser signal incidence
The port 1 of second ring device, the 4th beam splitter BS4 of incidence after being emitted by port 2, the 4th BS4 points of beam splitter is two-way, the two-way
Signal light respectively by a faraday rotation mirror after, again pass by incident 5th phase after third beam splitter BS3 coupling
Modulator PM5 passes through the 5th attenuator S5 of incidence after the 5th phase-modulator PM5 outgoing.Wherein, the 4th phase shifter PS4 settings
Between faraday rotation mirror F4 and the light path of the 4th beam splitter BS4.In which, the light exit side of the 5th attenuator S5 is institute
State the light exit side that light source module b is retransmitted in signal light rear end.
Strong photic blind supply light path e shown in Fig. 7 e has attack laser L6 and the 6th attenuator S6；The attack swashs
The laser signal of light device L6 outgoing is emitted the attack optical signal by the decaying of the 6th attenuator S6.The embodiment
In, the light exit side of the 6th attenuator S6 is the light exit side of strong photic blind attack light path e.In which, using continuous laser
Attack option, using 1 continuous wave laser as attack laser L6, the coherence length of the continuous wave laser need to make 2 phases
Position basic vector detector can receive continuous light (such as coherence length be less than phase basic vector light path in unequal arm interferometer brachium
Difference).
M- phase code encoding/decoding mode when apparatus for demonstrating may be used is attacked described in the utility model embodiment.At this point, described
Intercept and capture m- phase decoding module when detecting module a is signal light in signal light front end；Light source module b is retransmitted in the signal light rear end
For signal light when m- phase decoding module, specific implementation can be as shown in Figure 8.For mode shown in Fig. 8, when with strong
When photic blind supply light path e, realization method can be identical as Fig. 7 e, and details are not described herein.It should be noted that for when it is m-
Phase code encoding/decoding mode, detecting module a is intercepted and captured in signal light front end and signal light rear end retransmits light source module b and includes but do not limit to
The mode shown in Fig. 8, it can be random time-phase coding/decoding module, signal light rear end that detecting module a is intercepted and captured in signal light front end
Retransmit m- phase code module when light source module b can be arbitrary signal light.
With reference to figure 8, Fig. 8 be the utility model embodiment provide it is a kind of when m- phase code encoding/decoding mode attack demonstration
The principle schematic of device, signal light front end intercept and capture detecting module a realization method can as shown in Fig. 8 a and Fig. 8 c in Fig. 8,
The realization method that light source module b is retransmitted in signal light rear end can be as shown in Fig. 8 b and Fig. 8 d in Fig. 8.
Signal light front end shown in Fig. 8 a intercept and capture detecting module a have the 5th beam splitter BS5, third circulator H3, the 6th point
Beam device BS6, the 5th phase shifter PS5, two faraday rotation mirrors (F5 and F6) and three detectors (D5, D6 and D7).It is incident
Signal light incidence the 5th beam splitter BS5, the 5th beam splitter BS5 is used to the signal light of acquisition being divided into three tunnels, make all the way
It for Z basic vector measurement ends, is detected by a detector D5, the port 1 of another way incidence third circulator H3, finally all the way
As X basic vector measurement ends.The signal light all the way that the port 3 of third circulator H3 is emitted is visited by another detector D6
It surveys, the another way signal light that port 2 is emitted is two-way by the 6th beam splitter BS6 points, which leads to respectively
After crossing a faraday rotation mirror, after again passing by the 6th beam splitter BS6 couplings, visited by detector D7 described in another
It surveys.5th phase shifter PS5 is set between the 6th beam splitter BS6 and the light path of faraday rotation mirror F6.In which, the 5th point
The light incident side of beam device BS5 is the signal light input end that detecting module a is intercepted and captured in signal light front end.
Light source module b tools are retransmitted in signal light rear end shown in Fig. 8 b, and there are three laser (Z0/1, X0 and X1), the 6th phase shifters
PS6, the 7th beam splitter BS7 and the 7th attenuator.Three lasers intercept and capture the spy of detecting module a based on the signal light front end
It surveys as a result, outgoing optical signal.The laser letter of laser X0 and X1 outgoing is by the 6th phase shifter PS6 couplings, the light letter after coupling
Number couple by the 7th beam splitter BS7 with the laser signal of laser Z0/1 outgoing, the optical signal after coupling is decayed by the 7th
Device S7 outgoing.In which, the light exit side outgoing of the 7th attenuator S7 is the light outgoing that light source module b is retransmitted in signal light rear end
End.
Signal light front end shown in Fig. 8 c intercept and capture detecting module a have the 8th beam splitter BS8, the 6th shake controller EPC_#6,
7th phase shifter PS7 and three detectors (D8, D9 and D10).It is two that incident signal light is divided to by the 8th beam splitter BS8
Road is used as Z basic vector measurement ends, is detected by a detector D8 all the way, and another way is as X basic vector measurement ends, by the
Six shake the 7th phase shifter PS7 of incidence after controller EPC_#6, and by the 7th phase shifter, PS7 points are two-way, pass through detector respectively
D9 and D10 are detected.In which, the light input end of the 8th beam splitter BS8 is the light that detecting module a is intercepted and captured in signal light front end
Input terminal.
Signal light rear end shown in Fig. 8 d retransmit light source module b tool there are two laser (L7 and L8), fourth annular device H4 with
And the 8th attenuator S8.Laser L7 and L8 intercepts and captures the result of detection of detecting module a, emergent light letter based on the signal light front end
Number.The port 2 of the optical signal incidence fourth annular device H4 of laser L7 outgoing, the incident Fourth Ring of optical signal of laser L8 outgoing
The port 1 of shape device H4, the optical signal that the port 3 of circulator H4 is emitted pass through the 8th attenuator S8 outgoing.In which, the 8th declines
The light exit side for subtracting device S8 is the light exit side that light source module b is retransmitted in the signal light rear end.
It is attacked in apparatus for demonstrating described in the utility model embodiment, detecting module c and synchronizable optical are intercepted and captured in synchronizable optical front end
The realization method that light source module d is retransmitted in rear end can be using as shown in figure 9, a kind of attack that Fig. 9 is provided as the utility model embodiment
Detecting module is intercepted and captured in the synchronizable optical front end of apparatus for demonstrating and the principle schematic of light source module is retransmitted in synchronizable optical rear end.
In Fig. 9 a illustrated embodiments, the synchronizable optical front end intercepts and captures detecting module c and includes：Beam splitter BS9 and PIN type
Photoelectric tube PIN1；The beam splitter BS9 is used to incident synchronizable optical being divided into two-way, all the way the incident PIN type photoelectric tube
Light source module d is retransmitted in PIN1, the incident synchronizable optical rear end of another way.It includes that light source module d is retransmitted in the synchronizable optical rear end
Two delayer Y2.In which, the light incident side of the beam splitter BS9 is the light incidence that detecting module c is intercepted and captured in synchronizable optical front end
End, the light exit side of the second delayer Y2 are the light exit side that light source module d is retransmitted in synchronizable optical rear end.
In Fig. 9 b illustrated embodiments, the synchronizable optical front end intercepts and captures detecting module c and includes：PIN type photoelectric tube PIN2；Institute
Stating synchronizable optical rear end repeating transmission light source module d includes：Synchronous light source LSync and third delayer Y3；The synchronous light source LSync
Driving electric signal connect with the detection electric signal of the PIN type photoelectric tube PIN2, the laser of synchronous light source LSync outputs and institute
State third delayer Y3 connections Y3.In which, the light incident side of the PIN type photoelectric tube PIN2 is that spy is intercepted and captured in synchronizable optical front end
The light incident side of module c is surveyed, the light exit side of third delayer Y3 is the light exit side that light source module d is retransmitted in synchronizable optical rear end.
In the utility model embodiment, by the time difference of the normal light path and attack light path of corresponding delayer thermal compensation signal light, lead to
It crosses corresponding delayer and to attack the delay inequality of treated synchronizable optical and signal light and attack apparatus for demonstrating in apparatus for demonstrating
Synchronizable optical before processing is consistent with the delay inequality of signal light.In the embodiment of the present application, the delayer includes that adjusting optical fiber is long
The device or electronics time delay device of degree.
The attack apparatus for demonstrating is positioned over the exit of the first electro-optical system 11, to reduce loss.It is drilled in the attack
In showing device, different attack modes, which need different parts is arranged, to work.Wherein, detecting module 131 is intercepted and captured with after in front end
It, can be by photic blind supply light path e by force when the repeating transmission cooperation execution intercepting and capturing of light source module 132 in end are retransmitted with double-counting attack
One photoswitch is set, light path where strong photic blind supply light path e is disconnected, when executing strong photic blind attack, is opened by the light
It closes so that conducting light paths where strong photic blind supply light path e.It, can also be by controlling strong photic blind supply light path in other modes
The switching signal of laser in e, so that light path where strong photic blind supply light path e disconnects or conducting.
In the utility model embodiment, the attack apparatus for demonstrating can be used for implementing attack demonstration to QKD system, can be with
Implement but is not limited to following three kinds of attack modes：Intercept and capture multi-sending attack, based on intercept and capture multi-sending attack double-counting attack and
Strong photic blind attack.And the attack apparatus for demonstrating also facilitates extension, the bases such as demonstration time shift attack, the inconsistent attack of detection efficient
In the attack for intercepting and capturing repeating transmission.
Based on above-mentioned attack apparatus for demonstrating embodiment, another embodiment of the utility model additionally provides a kind of attack demonstration dress
The attack demenstration method set, is used for quantum key distribution system, and the quantum key distribution system includes having the first Opto-electrical Section
The transmitting terminal of system and receiving terminal with the second electro-optical system, the attack demenstration method include：
Step S11：When first electro-optical system and second electro-optical system carry out initialization of calibration, attacked
Preceding calibration.
Before attack calibration include delayed sweep, compensation of delay (can only carry out primary), referential calibration and light intensity optimize/
Setting, attack before the attack of apparatus for demonstrating calibration steps when transmitting terminal Alice and receiving terminal BOb carry out initialization of calibration into
Row.
Step S12：Before attack after the completion of calibration, the photosignal that the first electro-optical system inputs is synchronized into light and letter
Number light wave decomposition multiplex, synchronizable optical and signal light are separated.
Step S13：Separately detect the synchronizable optical and signal light of the synchronizable optical Wavelength division multiplexing module output.
Step S14：The result of detection that detecting module is intercepted and captured based on the front end retransmits corresponding rear end light source to described the
Two electro-optical systems, or for according to calibration feedback parameter is preset, retransmitting preset rear end light source to second electro-optical system.
The attack demenstration method can be executed by attacking apparatus for demonstrating described in above-described embodiment.Light is retransmitted based on rear end
The rear end light source of source module is retransmitted, and the attack demonstration of QKD system is can be used for.After completing the preceding calibration of attack, carries out attack and drill
Show, attack demonstration is attacked including attack itself and attack Compensation Feedback.The attack step of apparatus for demonstrating is attacked in transmitting terminal Alice
It is carried out when carrying out normal QKD with receiving terminal BOb.The attack Compensation Feedback step of apparatus for demonstrating is attacked in transmitting terminal Alice and is connect
Receiving end BOb carries out abnormality processing when progress, and feedback method, can be into line delay when decline such as counting rate with calibration before attack
Scanning and compensation, carry out referential calibration when the bit error rate increases.
The specific work process of calibration and attack demonstration before being attacked in the attack demenstration method is illustrated below.
One, calibration before attack
Calibration steps carries out initialization of calibration in the first electro-optical system, the second electro-optical system before attacking the attack of apparatus for demonstrating
Shi Jinhang.Initialization of calibration work includes mainly delayed sweep, referential calibration.
Delayed sweep function is adjusted and is aligned efficiency curve extreme higher position and the optical signal of detector by time delay device
Delay positions complete the optimization to the detection efficient of single-photon detector, so that system counts rate optimizes.
For attacking apparatus for demonstrating, delayed sweep function in front end completes front end and intercepts and captures the intercepting and capturing detection efficient of probe portion most
Optimization.For attacking apparatus for demonstrating, backend delay compensation function completes the transmitting terminal Alice that light source and normal light path are retransmitted in rear end
Light source time consistency so that it is inconsistent that receiving terminal BOb is detectable detection efficient caused by Time Inconsistency.
Referential calibration function completes the referential calibration of QKD system, so that error rate of system optimizes.
For polarizing the electro-optical system of code encoding/decoding mode, referential is calibrated to polarization calibration；For phase code encoding/decoding mode
Electro-optical system or when m- phase code encoding/decoding mode electro-optical system, referential is calibrated to phase alignment.Ginseng is referred here to
Examine is that the module of calibration includes：First electro-optical system, a and b modules, the second electro-optical system for attacking apparatus for demonstrating.Specific ginseng
Examine is that (normal mode, attack mode) can have different requirements to calibrating mode in different modes：
1) there was only the case where attack mode for no normal mode, attack apparatus for demonstrating as depicted in figs. 1 and 2, attack
The bit error rate of light path is related with the first electro-optical system, the referential deviation for a modules for attacking apparatus for demonstrating, and and attack demonstration dress
The referential deviation of the b modules, the second electro-optical system set is related, does not need to the referential of this four modules at this time all.
At this point, not needing the auxiliary of Fig. 4 and Fig. 5 can complete.
2) for having normal mode and attack mode the case where, apparatus for demonstrating is attacked as shown in Fig. 3, Fig. 4 and Fig. 5, in order to
Demonstrate the bit error rate variation of normal mode and attack mode, and demonstrated under normal light path the bit error rate and the first electro-optical system, the
The referential deviation of two electro-optical systems is related, attacks the bit error rate demonstrated under light path and the first electro-optical system, attack apparatus for demonstrating
A modules referential deviation, and attack apparatus for demonstrating b modules, the referential deviation of the second electro-optical system it is related, so
In order to facilitate the difference of both demonstrations, optimum way is needed to the first electro-optical system, a the and b modules for attacking apparatus for demonstrating, second
The referential of electro-optical system total of four module carries out monolithic calibration, needs the auxiliary of Fig. 4 and Fig. 5 that can complete.This
When：
Situation a --- assuming that attack apparatus for demonstrating can obtain the detection count information of the second electro-optical system：
After the second electro-optical system has completed referential calibration, the b modules for attacking apparatus for demonstrating are based on the second Opto-electrical Section
The referential of system, the referential that b modules are carried out according to the counting rate information of the second electro-optical system of acquisition are calibrated.
If cannot assume that attack apparatus for demonstrating can obtain the detection count information of receiving terminal Bob, attack demonstration dress
One detection system of needs is set to feed back for rear end polarization,
Situation b --- it cannot assume that attack apparatus for demonstrating can obtain the detection count information of receiving terminal Bob：
Attack apparatus for demonstrating needs the auxiliary of Fig. 4 and Fig. 5 two ways that can complete referential calibration.Specific process of feedback
See that Figure 10, Figure 10 are a kind of method flow diagram for referential calibration that the utility model embodiment provides, wherein Figure 10 a are Fig. 4
The method flow diagram of the referential calibration of shown attack apparatus for demonstrating, Figure 10 b are the referential school of attack apparatus for demonstrating shown in Fig. 5
Accurate method flow diagram.And specific referential calibration algorithm, the method for polarizing feedback are general polarization feedback method；Phase
Feedback is also general phase feedback approach, and this is not described in detail here.
Light intensity optimization/setting may be implemented in the attack demenstration method.
Light intensity optimization/setting is to attack receiving terminal Bob under light path by adjusting the attenuator of rear end repeating transmission light source
The counting rate of receiving terminal Bob is consistent as possible under counting rate and normal light path.For strong photic blind attack, then light intensity optimization/
Setting further includes the light intensity setting to blinding light, it is made to meet the requirement of strong photic blind attack.
Two, attack demonstration
In the attack demonstration stage, attack light path is switched to from normal light path by photoswitch, and the attack that setting is different
Pattern can carry out attack demonstration with observed count rate variation, bit error rate variation etc. to facilitate.
By foregoing description it is found that attack demenstration method described in the utility model embodiment, for controlling above-mentioned attack
Apparatus for demonstrating is switched to attack light path by photoswitch from normal light path, and the attack mode that setting is different, can observe meter
Digit rate variation, bit error rate variation etc., attack demonstration is carried out to facilitate.Each embodiment is retouched by the way of progressive in this specification
It states, each embodiment focuses on the differences from other embodiments, identical similar portion between each embodiment
Just to refer each other.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (14)
1. a kind of attack apparatus for demonstrating, is used for quantum key distribution system, the quantum key distribution system includes having first
The transmitting terminal of electro-optical system and receiving terminal with the second electro-optical system, which is characterized in that the attack apparatus for demonstrating includes：
Synchronizable optical Wavelength division multiplexing module, the photosignal for inputting the first electro-optical system synchronize light and signal light
Wavelength-division demultiplexes, and synchronizable optical and signal light are separated；
Detecting module is intercepted and captured in front end, synchronizable optical and signal for separately detecting the synchronizable optical Wavelength division multiplexing module input
Light；
Light source module is retransmitted in rear end, the result of detection for intercepting and capturing detecting module based on the front end, to second Opto-electrical Section
System carries out corresponding rear end light source and retransmits, or for according to calibration feedback parameter is preset, directly to second electro-optical system into
The preset rear end light source of row is retransmitted.
2. attack apparatus for demonstrating according to claim 1, which is characterized in that intercept and capture detecting module and include in the front end：Letter
Detecting module is intercepted and captured in number light front end and detecting module is intercepted and captured in synchronizable optical front end, is respectively used to detectable signal light and synchronizable optical；
Light source module is retransmitted in the rear end：Light source module is retransmitted in signal light rear end and light source die is retransmitted in synchronizable optical rear end
Block, the rear end light source for being respectively used to signal light and synchronizable optical are retransmitted.
3. attack apparatus for demonstrating according to claim 2, which is characterized in that further include：Strong photic blind attack light path, it is described
Strong photic blind attack light path is used to be emitted the attack optical signal of setting；
Wherein, the strong photic blind attack light path is connect with the first beam splitter；First beam splitter is used for the attack light
The signal optical coupling that light source module is retransmitted is retransmitted in signal and the signal rear end.
4. attack apparatus for demonstrating according to claim 2, which is characterized in that the synchronizable optical Wavelength division multiplexing module includes：
First wavelength division multiplexer, first wavelength division multiplexer are used to the optical signal that first electro-optical system is emitted synchronizing light
Wavelength-division with signal light demultiplexes, and the port of output signal light connects the signal light front end and intercepts and captures detecting module, outgoing
The port of synchronizable optical connects the synchronizable optical front end and intercepts and captures detecting module；
Second electro-optical system retransmits light source module and institute with the signal light rear end respectively by the second wavelength division multiplexer
It states synchronizable optical rear end and retransmits light source module connection.
5. attack apparatus for demonstrating according to claim 2, which is characterized in that the synchronizable optical Wavelength division multiplexing module includes：
First wavelength division multiplexer, first wavelength division multiplexer are used to the optical signal that first electro-optical system is emitted synchronizing light
Wavelength-division with signal light demultiplexes, and the port of output signal light connects the control port of the first photoswitch, is emitted synchronizable optical
Port connect the synchronizable optical front end and intercept and capture detecting module；
First conducting port of first photoswitch connects the first conducting port of the second photoswitch by the first delayer,
Second conducting port connects the signal light front end and intercepts and captures detecting module；
The signal light rear end is retransmitted the output end of module and is connect with the second conducting port of second photoswitch；
The synchronizable optical Wavelength division multiplexing module also the second wavelength division multiplexer, second electro-optical system are multiple by second wavelength-division
Module is retransmitted with device with the control port of the second photoswitch and the synchronizable optical rear end respectively to connect；
Wherein, in same photoswitch, control port is based on switch control signal and connect with the first conducting port and be connected with second
Port disconnects, or disconnects with the first conducting port and connect with the second conducting port.
6. attack apparatus for demonstrating according to claim 5, which is characterized in that second photoswitch and second wavelength-division
The 4th photoswitch, the control port of the control port and second photoswitch of the 4th photoswitch are provided between multiplexer
Connection, the first conducting port are connect with second wavelength division multiplexer；
Second conducting port connection signal light referential calibration module of the 4th photoswitch, the signal light referential calibration
Module is for calibrating signal light.
7. attack apparatus for demonstrating according to claim 5, which is characterized in that second photoswitch and second wavelength-division
The 4th photoswitch, the control port of the control port and second photoswitch of the 4th photoswitch are provided between multiplexer
Connection, the first conducting port are connect with second wavelength division multiplexer；
Second conducting port of first photoswitch and the signal light front end are provided with the 5th light between intercepting and capturing detecting module
Switch；The control port of 5th photoswitch is intercepted and captured detecting module with the signal light front end and is connect, the first conducting port
It is connect with the second conducting port of first photoswitch；
Second conducting port of the 4th photoswitch connects the second conducting port of the 5th photoswitch.
8. attack apparatus for demonstrating according to claim 2, which is characterized in that intercept and capture detecting module and be in the signal light front end
Signal light polarization decoder module；
It is signal light polarization encoder module that light source module is retransmitted in the signal light rear end.
9. attack apparatus for demonstrating according to claim 8, which is characterized in that further include：Strong photic blind attack light path, it is described
Strong photic blind attack light path is used to be emitted the attack optical signal of setting；The strong photic blind attack light path connects with the first beam splitter
It connects；First beam splitter is used to the attack optical signal and the signal rear end retransmitting the signal optocoupler that light source module is retransmitted
It closes；
The strong photic blind attack light path includes：First attack laser, the second attack laser, polarization-maintaining beam splitter and decaying
Device；
The laser light signal of the first attack laser and the second attack laser emitting passes through the polarization-maintaining beam splitter
After coupling, the attack optical signal is emitted by the decaying of the attenuator.
10. attack apparatus for demonstrating according to claim 2, which is characterized in that intercept and capture detecting module in the signal light front end
For signal light phase decoding module；
It is signal light phase code module that light source module is retransmitted in the signal light rear end.
11. attack apparatus for demonstrating according to claim 2, which is characterized in that intercept and capture detecting module in the signal light front end
For signal light when m- phase decoding module；
M- phase code module when light source module is signal light is retransmitted in the signal light rear end.
12. the attack apparatus for demonstrating according to claim 10 or 11, which is characterized in that further include：Strong photic blind attack light
Road, the strong photic blind attack light path are used to be emitted the attack optical signal of setting；The strong photic blind attack light path and first point
Beam device connects；First beam splitter is used to the attack optical signal and the signal rear end retransmitting the letter that light source module is retransmitted
Number optical coupling；
The strong photic blind attack light path includes：Attack laser and attenuator；The laser letter of the attack laser emitting
Number the attack optical signal is emitted by the decaying of the attenuator.
13. attack apparatus for demonstrating according to claim 2, which is characterized in that intercept and capture detecting module in the synchronizable optical front end
Including：Beam splitter and PIN type photoelectric tube；The beam splitter is used to incident synchronizable optical being divided into two-way, all the way described in incidence
Light source module is retransmitted in PIN type photoelectric tube, the incident synchronizable optical rear end of another way；
It includes the second delayer that light source module is retransmitted in the synchronizable optical rear end.
14. attack apparatus for demonstrating according to claim 2, which is characterized in that intercept and capture detecting module in the synchronizable optical front end
Including PIN type photoelectric tube；
Light source module is retransmitted in the synchronizable optical rear end：Synchronous light source and third delayer；The driving of the synchronous light source
Electric signal is connect with the detection electric signal of the PIN type photoelectric tube, and laser and the third delayer of synchronous light source output connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323874.4U CN207884640U (en) | 2018-03-09 | 2018-03-09 | A kind of attack apparatus for demonstrating |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247755A (en) * | 2018-03-09 | 2019-09-17 | 上海国盾量子信息技术有限公司 | A kind of attack apparatus for demonstrating and attack demenstration method |
| CN116614230A (en) * | 2023-07-20 | 2023-08-18 | 合肥量芯科技有限公司 | Pseudo-state attack demonstration system for introducing detection efficiency mismatch loopholes |
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2018
- 2018-03-09 CN CN201820323874.4U patent/CN207884640U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247755A (en) * | 2018-03-09 | 2019-09-17 | 上海国盾量子信息技术有限公司 | A kind of attack apparatus for demonstrating and attack demenstration method |
| CN110247755B (en) * | 2018-03-09 | 2024-09-17 | 上海国盾量子信息技术有限公司 | Attack demonstration device and attack demonstration method |
| CN116614230A (en) * | 2023-07-20 | 2023-08-18 | 合肥量芯科技有限公司 | Pseudo-state attack demonstration system for introducing detection efficiency mismatch loopholes |
| CN116614230B (en) * | 2023-07-20 | 2023-09-19 | 合肥量芯科技有限公司 | Pseudo-state attack demonstration system for introducing detection efficiency mismatch loopholes |
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