CN109560917A - A kind of QKD method, equipment and system - Google Patents
A kind of QKD method, equipment and system Download PDFInfo
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- CN109560917A CN109560917A CN201710882423.4A CN201710882423A CN109560917A CN 109560917 A CN109560917 A CN 109560917A CN 201710882423 A CN201710882423 A CN 201710882423A CN 109560917 A CN109560917 A CN 109560917A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/70—Photonic quantum communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0852—Quantum cryptography
- H04L9/0858—Details about key distillation or coding, e.g. reconciliation, error correction, privacy amplification, polarisation coding or phase coding
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Abstract
This application discloses a kind of QKD method, equipment and system, in each QKD equipment of QKD system, including a QKD controls sub- equipment and at least one QKD executes sub- equipment.QKD executes sub- equipment and provides multiple quantum hardware devices, can satisfy demand of the user to the quantum key generated based on different physics realization principles.QKD controls sub- equipment, can control quantum hardware device needed for QKD executes sub- equipment calls, generate required quantum key.Sub- equipment is controlled based on QKD and QKD executes sub- equipment, realizes control logic and hardware realization separation, and flexibility is good, the high QKD technical solution of expansibility, is suitable for the diversified demand of user.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of QKD method, equipment and system.
Background technique
Quantum communications are a kind of new communication technologys for combining quantum theory and information theory, can under the physical limit,
High performance communication is realized using quantum effect.Currently, practical Technique on Quantum Communication is known as quantum key distribution
(QuantumKey Distribution, QKD) technology, Equipment Foundations are the QKD systems based on quantum key distribution agreement.
Local QKD equipment and opposite end QKD equipment are generally included in the QKD system, local QKD equipment and opposite end QKD equipment pass through QKD net
Network and classical communication network are communicated, and realize quantum key distribution.
Currently, the type for the QKD agreement that different quantum hardware devices is supported is different, if local QKD is set in QKD system
Standby quantum hardware device, the quantum hardware device with QKD equipment in opposite end in QKD system, the type for the QKD agreement supported is not
Together, then local QKD equipment and opposite end QKD equipment can not interact generation quantum key.Therefore, the QKD equipment of QKD system
In, it can only be using a certain fixed quantum hardware device, the QKD protocol type supported using the quantum hardware device, really
Determine the control logic that quantum key is generated in QKD equipment, which is also only applicable to the QKD equipment, can not be suitable for base
In the QKD equipment that other quantum hardware devices are realized.Then QKD equipment in the prior art, flexibility is poor, is unable to satisfy diversification
Practical application request.
Summary of the invention
The technical issues of the application solves is to provide a kind of QKD method, equipment and system, realizes that flexibility is good, can open up
The high QKD technical solution of malleability is suitable for the diversified demand of user.
For this purpose, the technical solution that the application solves technical problem is:
A kind of quantum key distribution QKD control method, which comprises
The mark of target quantum hardware device is chosen, the target quantum hardware device is that the sub- equipment of local QKD execution mentions
The quantum hardware device in multiple quantum hardware devices supplied；
From suitable for a variety of QKD protocol types of the target quantum hardware device, a kind of QKD protocol type is selected to make
For target QKD protocol type；
Target cipher key processing parameter is chosen, the target cipher key processing parameter is used for invocation target key handling logic, right
The data that the target quantum hardware device generates carry out processing and generate quantum key；
According to the mark of the target quantum hardware device, at the target QKD protocol type and the target cipher key
Parameter is managed, control parameter is generated, the control parameter is sent to the local QKD and executes sub- equipment, controls the local QKD
It executes sub- equipment and generates quantum key.
Optionally, the mark for choosing target quantum hardware device includes:
Show that the local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides；
In response to user from the selection operation of the mark of the multiple quantum hardware device, the target quantum hardware is obtained
The mark of equipment.
Optionally, the mark for choosing target quantum hardware device includes:
The mark that opposite end QKD executes multiple quantum hardware devices that sub- equipment provides is obtained, the opposite end QKD executes son and sets
Standby is to execute the opposite equip. that sub- equipment uses quantum key distribution network to be communicated with the local QKD in QKD system；
Extract that the local QKD executes sub- equipment and the opposite end QKD executes the quantum hardware device of sub- collaborative share
Mark；
From the mark of the shared quantum hardware device, select the mark of a quantum hardware device as the mesh
The mark of the sub- hardware device of scalar.
Optionally, the method also includes:
The state table that the local QKD executes sub- equipment feedback is received, the state table is held for characterizing the local QKD
The sub- equipment of row generates the operating condition during quantum key.
A kind of quantum key distribution QKD execution method, which comprises
It receives local QKD and controls the control parameter that sub- equipment is sent, the control parameter includes target quantum hardware device
Mark, target QKD protocol type and target cipher key processing parameter；
From multiple quantum hardware devices, according to the mark of the target quantum hardware device, the target quantum is called
The target quantum hardware device that the mark of hardware device is identified generates data corresponding with the target QKD protocol type；
According to the target cipher key processing parameter invocation target key handling logic, processing acquisition amount is carried out to the data
Sub-key.
Optionally, the target cipher key processing parameter includes target basic vector alignment algorithm, target error correction algorithm, target secrecy
Enhance algorithm, object identifier algorithm is described according to the target cipher key processing parameter invocation target key handling logic, to described
Data carry out processing acquisition quantum key
Logic is compared using the corresponding basic vector of the target basic vector alignment algorithm, basic vector is carried out to the data and compares acquisition
First data；
The corresponding error correction logic of the target error correction algorithm is called, key error correction is carried out to first data and obtains second
Data；
The corresponding secrecy enhancing logic of the target secrecy enhancing algorithm is called, secrecy enhancing is carried out to second data
Obtain third data；
The corresponding check logic of the object identifier algorithm is called, key verification is carried out to the third data and obtains quantum
Key.
Optionally, the method also includes:
Cipher key management operation is carried out to the quantum key of generation, the cipher key management operation includes that key information is looked into
It askes, key encryption storage and key encryption output.
A kind of sub- equipment of quantum key distribution QKD control, the sub- equipment of control include:
Choice Method module, for choosing the mark of target quantum hardware device, the target quantum hardware device is this
Ground QKD executes a quantum hardware device in multiple quantum hardware devices that sub- equipment provides；
QKD agreement matches module, for from suitable for a variety of QKD protocol types of the target quantum hardware device,
Select a kind of QKD protocol type as target QKD protocol type；
Parameter selecting module, for choosing target cipher key processing parameter, the target cipher key processing parameter is for calling mesh
Key handling logic is marked, processing is carried out to the data that the target quantum hardware device generates and generates quantum key；
Control module, for the mark according to the target quantum hardware device, the target QKD protocol type, and
The target cipher key processing parameter generates control parameter, and the control parameter is sent to the local QKD and executes sub- equipment,
It controls the local QKD and executes sub- equipment generation quantum key.
Optionally, the Choice Method module includes:
Display unit, for showing that the local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides；
Response unit obtains institute for the selection operation in response to user from the mark of the multiple quantum hardware device
State the mark of target quantum hardware device.
Optionally, the Choice Method module includes:
Acquiring unit executes the mark for multiple quantum hardware devices that sub- equipment provides for obtaining opposite end QKD, described right
It is to execute sub- equipment in QKD system with the local QKD and led to using quantum key distribution network that end QKD, which executes sub- equipment,
The opposite equip. of letter；
Extraction unit, for extracting, the local QKD executes sub- equipment and the opposite end QKD executes the amount of sub- collaborative share
The mark of sub- hardware device；
Selecting unit, for selecting a quantum hardware device from the mark of the shared quantum hardware device
Identify the mark as the target quantum hardware device.
Optionally, the sub- equipment of control further include:
Monitoring module, the state table of sub- equipment feedback is executed for receiving the local QKD, and the state table is used for
It characterizes the local QKD and executes sub- equipment and generate operating condition during quantum key.
A kind of sub- equipment of quantum key distribution QKD execution, the sub- equipment of execution include:
Receiving module controls the control parameter that sub- equipment is sent for receiving local QKD, and the control parameter includes target
The mark of quantum hardware device, target QKD protocol type and target cipher key processing parameter；
Quantum hardware module, the quantum hardware module include multiple quantum hardware devices, are used for from multiple quantum hardware
In equipment, according to the mark of the target quantum hardware device, the mark of the target quantum hardware device is called to be identified
Target quantum hardware device generates data corresponding with the target QKD protocol type；
Protocol adaptation module, the protocol adaptation module include multiple QKD protocol types, are used for from multiple QKD protocol class
In type, the target QKD protocol type is selected；
Key handling module is used for according to the target cipher key processing parameter invocation target key handling logic, to described
Data carry out processing and obtain quantum key.
Optionally, the target cipher key processing parameter includes target basic vector alignment algorithm, target error correction algorithm, target secrecy
Enhance algorithm, object identifier algorithm, the key handling module includes:
Basic vector comparing unit, for comparing logic using the corresponding basic vector of the target basic vector alignment algorithm, to the number
The first data of acquisition are compared according to basic vector is carried out；
Error correction unit, the error correction unit include a variety of error correction logics, for calling the target error correction algorithm corresponding
Error correction logic carries out key error correction to first data and obtains the second data；
Secrecy enhancement unit, the secrecy enhancement unit includes a variety of secrecy enhancing logics, for calling the target to protect
The corresponding secrecy of close enhancing algorithm enhances logic, carries out secrecy enhancing to second data and obtains third data；
Key verification unit, the key verification unit include a variety of check logics, for calling the object identifier to calculate
The corresponding check logic of method carries out key verification to the third data and obtains quantum key.
It is optionally, described to execute sub- equipment further include:
Key management module, for carrying out cipher key management operation, the key management behaviour to the quantum key of generation
Make to include that key information is inquired, key encryption storage and key encryption output.
A kind of quantum key distribution QKD equipment, the QKD equipment include:
QKD described in one above content controls sub- equipment, and QKD described at least one above content executes sub- equipment.
A kind of quantum key distribution QKD system, the QKD system include:
QKD equipment described in two above contents, the QKD equipment are used as local QKD equipment, another QKD is set
It is standby to be used as opposite end QKD equipment.
According to the above-mentioned technical solution, the application has the advantages that:
In each QKD equipment of QKD system, including a QKD controls sub- equipment and at least one QKD executes son and sets
It is standby.QKD executes sub- equipment and provides multiple quantum hardware devices.QKD executes sub- equipment and receives the control that QKD controls sub- equipment transmission
Parameter processed, according to the control parameter, invocation target quantum hardware device, generation are assisted with target QKD from multiple quantum hardware devices
The corresponding data of type are discussed, according to the target cipher key processing parameter in control parameter, invocation target key handling logic is to this
Data are handled, and quantum key is generated.QKD executes sub- equipment and provides multiple quantum hardware devices, can satisfy user couple
Demand based on the quantum key that different physics realization principles generate.QKD controls sub- equipment, can control QKD and execute sub- equipment
Quantum hardware device needed for calling, generates required quantum key.Sub- equipment is controlled based on QKD and QKD executes sub- equipment, it is real
Existing control logic and hardware realization separation, flexibility is good, the high QKD technical solution of expansibility, and it is diversified to be suitable for user
Demand.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is QKD control method flow chart provided by the embodiments of the present application；
Fig. 2 is that QKD provided by the embodiments of the present application executes method flow diagram；
Fig. 3 is that QKD provided by the embodiments of the present application controls sub- device structure schematic diagram；
Fig. 4 is that QKD provided by the embodiments of the present application executes sub- device structure schematic diagram；
Fig. 5 is QKD device structure schematic diagram provided by the embodiments of the present application；
Fig. 6 is QKD system structural schematic diagram provided by the embodiments of the present application.
Specific embodiment
Flexibility is good in order to provide, and the implementation of the high QKD technology of expansibility, the embodiment of the present application provides one kind
QKD control method, equipment and system are illustrated embodiment provided by the present application below in conjunction with Figure of description.
In existing QKD system, including two QKD equipment, in each QKD equipment, there is quantum hardware device, the quantum
The QKD protocol type and used quantum key post-processing algorithm that hardware device is supported, are all preconfigured, Gu
Fixed, i.e. processing logical AND hardware realization is adapted.When processing logic changes, hardware realization is needed to reset；And it is hard
When part realization changes, it is also desirable to which adaptability resets processing logic.Cause the QKD system Structured cured, flexibility
Difference, extending space are small.Moreover, because each QKD equipment, can only use a kind of quantum hardware device, i.e., can only provide based on one
The quantum key that kind of physics realization principle generates, when the quantum key that user needs to generate based on different physics realization principles, need
Multiple QKD systems are bought, single QKD system is unable to satisfy the diversified demand of user.
To solve the above-mentioned problems, in embodiment provided by the present application, each QKD equipment of QKD system is both provided more
A quantum hardware device additionally provides the QKD protocol type that each quantum hardware device is applicable in, also, additionally provides a variety of
Key handling logic.Control logic is separated with hardware realization in QKD equipment, sub- equipment is controlled by QKD and realizes control logic, from
QKD is executed in multiple quantum hardware devices that sub- equipment provides, and a quantum hardware device is selected to set as target quantum hardware
It is standby, and obtain the target QKD protocol type being adapted with the target quantum hardware device and target cipher key processing parameter etc.,
Generate control parameter.QKD executes sub- equipment, calls corresponding target quantum hardware device, generation and mesh using the control parameter
The corresponding data of QKD protocol type are marked, further according to target cipher key processing parameter invocation target key handling logic, to the data
After being handled, quantum key is obtained.That is QKD, which controls sub- equipment, can control the sub- equipment of QKD execution, hard using different quantum
Part equipment generates different types of quantum key based on different physics realization principles.QKD system provided by the embodiments of the present application
System, flexibility is good, the high QKD technical solution of expansibility, is suitable for the diversified demand of user.
Embodiment one
Technical solution provided by the present application is described in detail below.Technical solution provided by embodiment one, mainly
It is technical solution provided by a QKD equipment in description QKD system.
Fig. 1 is QKD control method flow chart provided by the embodiments of the present application, comprising:
101:QKD controls the mark that sub- equipment chooses target quantum hardware device, and target quantum hardware device is local QKD
Execute a quantum hardware device in multiple quantum hardware devices that sub- equipment provides.
102:QKD controls sub- equipment from suitable for a variety of QKD protocol types of target quantum hardware device, selects one kind
QKD protocol type is as target QKD protocol type.
A QKD equipment in QKD system, including a QKD controls sub- equipment and at least one QKD executes son and sets
It is standby.Each QKD executes sub- equipment and provides multiple quantum hardware devices, and each quantum hardware device generates the object that data are based on
It is different to manage realization principle.Each quantum hardware device includes an optical hardware equipment and one and the optical hardware equipment
The encoding device or decoding device of adaptation, when optical hardware equipment difference employed in each quantum hardware device, adaptation
Encoding device or decoding device are also different.When the QKD equipment is transmitting terminal QKD equipment, using encoding device；The QKD is set
When for being receiving end QKD equipment, using decoding device.
For example, when being the optical hardware equipment of discrete polarization mode used by quantum hardware device, it is used be from
Dissipate polarization encoder equipment or decoding device；When being the optical hardware equipment of discrete phase mode used by quantum hardware device,
Used is discrete phase encoding device or decoding device；It is the optics of continuous variable mode used by quantum hardware device
When hardware device, used is continuous variable encoding device or decoding device；It is that measurement is set used by quantum hardware device
When the optical hardware equipment of standby unrelated (Measurement-Device-Independent, MDI) mode, used is MDI
Encoding device or decoding device, etc..
Although QKD executes sub- equipment and is capable of providing multiple quantum hardware devices based on different physics realization principles, every time
When generating quantum key, QKD controls sub- equipment, can only control the QKD and execute a kind of sub- quantum hardware device of equipment calls, be based on
A kind of physics realization principle generation quantum key.In order to generate the quantum key, not only need to choose a kind of quantum hardware device,
A kind of QKD protocol type for also needing that the quantum hardware device is selected to be supported guarantees that the multiple hardware for generating quantum key are set
It is mutually matched between standby, also to guarantee the execution logical AND hardware device matching for generating quantum key.Wherein, selected quantum
Hardware device is target quantum hardware device, selected from a variety of QKD protocol types that the target quantum hardware device is supported
QKD protocol type, be target QKD protocol type.
In QKD system, including two QKD equipment, sub- equipment is controlled with a QKD, belongs to the same QKD equipment
QKD executes sub- equipment, executes sub- equipment for the QKD local QKD for controlling sub- equipment；Sub- equipment is controlled with the QKD, is not belonging to same
The QKD of one QKD equipment executes sub- equipment, executes sub- equipment for the QKD opposite end QKD for controlling sub- equipment.
For a QKD controls sub- equipment, a Choice Method module can be separately provided, for managing the QKD
The each local QKD for controlling sub- equipment executes multiple quantum hardware devices provided by sub- equipment.When specific implementation, to each
Ground QKD executes sub- one quantum hardware device list of plant maintenance, includes that local QKD is executed in the quantum hardware device list
In sub- equipment, the mark of each quantum hardware device.Wherein, the mark of quantum hardware device can characterize the quantum hardware device
The physics realization principle being based on.
After QKD controls the mark that sub- equipment has chosen target quantum hardware device, that is, it is raw to be determined that the QKD executes sub- equipment
When at quantum key, used optical hardware equipment and encoding device.
After QKD controls the mark that sub- equipment has chosen target quantum hardware device, it is also necessary to further obtain and be suitable for being somebody's turn to do
The QKD protocol type of target quantum hardware device.Under normal circumstances, the QKD protocol type suitable for a quantum hardware device
There are many, a kind of QKD protocol type can be selected as target QKD protocol type according to actual needs.When specific implementation, QKD
A QKD agreement apolegamy module can also be safeguarded by controlling in sub- equipment, QKD agreement apolegamy module is for managing QKD control
Each local QKD of sub- equipment executes various QKD protocol types provided by sub- equipment.When specific implementation, to each local QKD
One QKD protocol type list of sub- plant maintenance is executed, includes that local QKD executes sub- equipment in the QKD protocol type list
In, the QKD protocol type supported.
For example: QKD protocol type includes BB84 agreement, B92 agreement, SARG04 agreement and COW agreement etc..
103:QKD controls sub- equipment and chooses target cipher key processing parameter, and target cipher key processing parameter is close for invocation target
Key handles logic, carries out processing to the data that the target quantum hardware device generates and generates quantum key.
QKD controls sub- equipment and also needs selection target key handling parameter, which includes target base
Swear alignment algorithm, target error correction algorithm, target secrecy enhancing algorithm, object identifier algorithm.
Local QKD, which executes sub- equipment, can provide a variety of basic vectors comparison logics, and every kind of basic vector compares logic and corresponds to a kind of base
Swear alignment algorithm.QKD, which is controlled, can also safeguard that a basic vector compares management module in sub- equipment, which compares management module and use
Basic vector alignment algorithm provided by the sub- equipment of each local QKD execution of sub- equipment is controlled in managing the QKD.It is held from local QKD
In various basic vector alignment algorithms provided by the sub- equipment of row, select a kind of basic vector alignment algorithm as target basic vector alignment algorithm.
Local QKD, which executes sub- equipment, can provide a variety of key error correction logics, and every kind of key error correction logic is corresponding a kind of close
Key error correction algorithm.QKD, which is controlled in sub- equipment, can also safeguard a key error correction management module, which uses
Various key error correction algorithms provided by the sub- equipment of each local QKD execution of sub- equipment are controlled in managing the QKD.From local
QKD is executed in various key error correction algorithms provided by sub- equipment, selects a kind of key error correction algorithm as target error correction algorithm.
For example, key error correction algorithm includes Cascade algorithm, Winnow algorithm, LDPC code algorithm, Polar code algorithm etc..
Similar, local QKD, which executes sub- equipment, can provide a variety of secrecy enhancing logics, and every kind of secrecy enhancing logic is corresponding
A kind of secrecy enhancing algorithm.QKD, which is controlled in sub- equipment, can also safeguard a secrecy Strengthening Management module, the secrecy Strengthening Management
Module is used to manage the QKD and controls various secrecy enhancing algorithms provided by the sub- equipment of each local QKD execution of sub- equipment.From
Local QKD is executed in various secrecy enhancing algorithms provided by sub- equipment, and a kind of secrecy enhancing algorithm is selected to maintain secrecy as target
Enhance algorithm.For example, secrecy enhancing algorithm includes the secrecy enhancing algorithm based on Toeplitz matrix, the guarantor based on FFT
Close enhancing algorithm and hash algorithm etc..
Similarly, local QKD, which executes sub- equipment, can provide a variety of key verification logics, every kind of key verification logic corresponding one
Kind key verification algorithm.QKD, which is controlled, can also safeguard a key verification management module in sub- equipment, which manages mould
Block is used to manage the QKD and controls various key verification algorithms provided by the sub- equipment of each local QKD execution of sub- equipment.From this
Ground QKD is executed in various key verification algorithms provided by sub- equipment, and a kind of key verification algorithm is selected to calculate as object identifier
Method.
What needs to be explained here is that QKD controls the Choice Method module safeguarded in sub- equipment, QKD agreement matches module,
Basic vector compares management module, key error correction management module, secrecy Strengthening Management module and key verification management module, wherein
Content, the change of function provided by sub- equipment can be executed with QKD and changed.
Increase for example, QKD executes the quantum hardware device that sub- equipment provides, then the quantum safeguarded in Choice Method module is hard
The increase of the mark adaptability of part equipment；Quantum hardware device is reduced, then the quantum hardware device safeguarded in Choice Method module
Mark adaptability reduction；Quantum hardware device changes, then the mark for the quantum hardware device safeguarded in Choice Method module
The change of adaptability.The change of other modules is similar, and which is not described herein again.
What needs to be explained here is that for target QKD protocol type, target basic vector alignment algorithm, target error correction algorithm, mesh
Mark, which maintains secrecy, enhances algorithm, for object identifier algorithm, when choosing above-mentioned parameter, can arbitrarily select a kind of hard with target quantum
The adaptable parameter of part equipment；The above-mentioned parameter being adapted with target quantum hardware device can also be shown to user, be based on
User chooses above-mentioned parameter to the selection operation of each parameter.Specific implementation is specifically arranged according to actual needs, here not
It is defined.
104:QKD controls sub- equipment according to the mark of target quantum hardware device, target QKD protocol type and target
Key handling parameter generates control parameter, and the control parameter is sent to local QKD and executes sub- equipment, control local QKD is held
The sub- equipment of row generates quantum key.
QKD controls sub- equipment according to the mark of target quantum hardware device, target QKD protocol type and target cipher key
Processing parameter generates control parameter, not only includes the mark of target quantum hardware device, target QKD agreement in the control parameter
Type and target cipher key processing parameter further include the system frequency being adapted with QKD system, the method for synchronization, synchronizing frequency etc.
Parameter.
After the sub- equipment of QKD control generates the control parameter, which is sent to local QKD and executes sub- equipment, control
It makes the QKD and executes sub- equipment generation quantum key.At the same time, which controls sub- equipment and is also sent to the control parameter pair
It holds QKD to control sub- equipment, sub- equipment is controlled by opposite end QKD, control parameter is sent to the sub- equipment of opposite end QKD execution, it is right to control this
It holds QKD to execute sub- equipment according to the control parameter, generates quantum key.
It is understood that during generating quantum key, it is desirable that two QKD equipment in a QKD system
QKD executes sub- equipment, and the physics realization principle that used target quantum hardware device is based on is identical, target QKD protocol class
Type, target basic vector alignment algorithm, target error correction algorithm, target secrecy enhancing algorithm, object identifier algorithm is all identical, could generate
Effective quantum key.Therefore, after the QKD in a QKD equipment controls sub- equipment generation control parameter, which is sent out
It send to opposite end QKD and controls sub- equipment, opposite end QKD controls sub- equipment without repeatedly generating.
Wherein, it is possible there are at least two when 101:QKD controls the mark of sub- equipment selection target quantum hardware device
Implementation is described below in detail.
QKD controls the mark that sub- equipment chooses target quantum hardware device
The first implementation:
Display local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides；
In response to user from the selection operation of the marks of multiple quantum hardware devices, the mark of target quantum hardware device is obtained
Know.
Negotiate to determine in the QKD system under user's line, each QKD equipment uses the quantum based on which kind of physics realization principle
Hardware device, that is, target quantum hardware device used by determining.QKD for a QKD equipment, in the QKD equipment
Sub- equipment is executed, display local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides, and user executes son in QKD
Selection operation is executed on display interface provided by equipment, from the mark of shown multiple quantum hardware devices, selects one
The mark of a quantum hardware device, the QKD execute sub- equipment in response to the selection operation of user, by quantum hardware selected by user
Mark of the mark of equipment as target quantum hardware device.
When specific implementation, QKD, which executes sub- equipment, can provide a drop-down list, which can show multiple amounts
The mark of sub- hardware device, user selects the mark of the quantum hardware device consulted from the drop-down list, as aim parameter
The mark of sub- hardware device.Then the QKD in two QKD equipment in QKD system executes sub- equipment, can use aforesaid way
Choose the mark of target quantum hardware device, it is ensured that two QKD equipment in QKD system use former based on identical physics realization
The quantum hardware device of reason.
Second of implementation:
The mark that opposite end QKD executes multiple quantum hardware devices that sub- equipment provides is obtained, opposite end QKD, which executes sub- equipment, is
In QKD system, the opposite equip. that sub- equipment uses quantum key distribution network to be communicated is executed with local QKD；
Extract local QKD execute sub- equipment and opposite end QKD execute sub- collaborative share quantum hardware device mark；
From the mark of shared quantum hardware device, select the mark of a quantum hardware device as the aim parameter
The mark of sub- hardware device.
In a QKD system, including two QKD equipment, for the QKD in a QKD equipment controls sub- equipment,
It is communicated with the sub- equipment of control in the QKD equipment of opposite end using internet.Therefore, opposite end QKD controls sub- equipment, to the QKD
The mark that sub- equipment sends multiple quantum hardware devices is controlled, the mark of multiple quantum hardware device can characterize opposite end QKD
Execute multiple quantum hardware devices that sub- equipment is capable of providing.Wherein, opposite end QKD executes sub- equipment, is in QKD system and to be somebody's turn to do
QKD controls the sub- equipment of QKD execution that sub- equipment is not belonging to the same QKD equipment.Opposite end QKD controls sub- equipment and holds with opposite end QKD
The sub- equipment of row belongs to the same QKD equipment.
After QKD controls the mark that sub- equipment obtains multiple quantum hardware devices that opposite end QKD executes sub- equipment offer, quantum
The mark of hardware device can characterize the physics realization principle that quantum hardware device is based on.It is former due to being realized based on same physical
The mark of the quantum hardware device of reason is identical, then QKD controls sub- equipment, controls multiple amounts that sub- equipment is sent according to opposite end QKD
The mark of sub- hardware device determines that local QKD executes sub- equipment and opposite end QKD executes the quantum hardware that sub- equipment is all supported and sets
Standby, by the mark of the above-mentioned quantum hardware device all supported as shared quantum hardware device mark.The shared quantum
The mark of hardware device may be one, it is also possible to multiple.QKD controls sub- equipment from the mark of shared quantum hardware device
In, select mark of the mark of a quantum hardware device as target quantum hardware device.
Compared with second of implementation, the first is achieved in that by negotiating under user's line the first implementation, by
User executes selection operation according to negotiation result, realizes the mark for choosing target quantum hardware device；It is achieved in that for second
Negotiate between two QKD equipment in QKD system, it is automatic to realize the mark for choosing target quantum hardware device.Second of realization side
Formula realizes that speed is fast, reduces manual intervention, reduce the complexity of operation compared with the first implementation.
After QKD controls sub- equipment generation control parameter, which is sent to QKD and executes sub- equipment, QKD executes son
Equipment generates quantum key according to the control parameter, is described below in detail.
Fig. 2 is that QKD provided in an embodiment of the present invention executes method flow diagram, comprising:
201:QKD executes sub- equipment and receives the control parameter that local QKD controls sub- equipment transmission, and the control parameter includes
The mark of target quantum hardware device, target QKD protocol type and target cipher key processing parameter.
202:QKD executes sub- equipment from multiple quantum hardware devices, according to the mark of the target quantum hardware device,
The target quantum hardware device that the mark of invocation target quantum hardware device is identified generates and the target QKD protocol type
Corresponding data.
203:QKD executes sub- equipment according to the target cipher key processing parameter invocation target key handling logic, to described
Data carry out processing and obtain quantum key.
QKD is executed in sub- equipment and is provided multiple quantum hardware devices, and the physics that each quantum hardware device is based on is real
Existing principle is different；The processing logic of a variety of QKD protocol types is additionally provided, a variety of basic vectors compare logic, and a variety of key error correction are patrolled
Volume, a variety of secrecy enhance logic, a variety of key verification logics.QKD executes above-mentioned function provided by sub- equipment, can organize symphysis
At the quantum key based on different physics realization principles.QKD controls sub- equipment control QKD and executes sub- equipment, will be provided each
The combination of kind function adaptability, generates the quantum key based on different physics realization principles.
QKD executes sub- equipment and calls the target quantum first according to the mark of the target quantum hardware device in control parameter
The quantum hardware device that the mark of hardware device is identified generates corresponding with the target QKD protocol type in control parameter
Data, the data include basic vector related data and primary key data.
If the QKD, which executes sub- equipment, belongs to transmitting terminal QKD equipment, the basic vector related data and primary key data are all
The data generated at random.The QKD is executed in the target quantum hardware device of sub- equipment, and optical hardware equipment is used to provide light source,
Encoding device encodes the optical signal of light source output according to the basic vector related data and primary key data, after sending coding
Optical signal.
If the QKD, which executes sub- equipment, belongs to receiving end QKD equipment, basic vector related data is randomly generated in the data
, primary key data are to receive opposite end QKD by target quantum hardware device to execute the optical signal that sub- equipment is sent obtained.
The QKD is executed in the target quantum hardware device of sub- equipment, and decoding device receives optical signal according to basic vector related data and solved
Code, then decoded optical signal is subjected to photoelectric conversion, obtain primary key data.QKD executes sub- equipment and opposite end QKD is executed
The physics realization principle that the quantum hardware device that sub- equipment is called is based on is identical.
Then, QKD executes sub- equipment according to target cipher key processing parameter invocation target key handling logic, to the data into
Row processing, wherein target cipher key processing parameter includes target basic vector alignment algorithm, target error correction algorithm, target secrecy enhancing calculation
Method, object identifier algorithm, then QKD executes sub- equipment and successively carries out basic vector comparison to the data, and key error correction, secrecy enhances, close
The processing of key verification.In above-mentioned treatment process, QKD executes sub- equipment and opposite end QKD is executed sub- equipment and carried out using internet
Communication, is performed simultaneously above-mentioned processing, finally obtains quantum key.In above-mentioned every treatment process, QKD execute sub- equipment with it is right
QKD is held to execute sub- equipment all according to identical control parameter, therefore, used processing logic is all identical.
Logic is compared using the corresponding basic vector of target basic vector alignment algorithm, sub- equipment is executed in QKD and opposite end QKD executes son
Basic vector related data is transmitted between equipment, carries out basic vector comparison processing, to obtain the first data by primary key data, that is, is sieved
Select key data.
QKD executes sub- equipment and provides a variety of error correction logics, when carrying out key error correction to the first data, is joined according to control
Number, from provided a variety of error correction logics, the corresponding error correction logic of invocation target error correction algorithm carries out key to the first data
Error correction obtains the second data.
Similar, QKD executes sub- equipment and additionally provides a variety of secrecy enhancing logics, carries out secrecy enhancing to the second data
When, according to control parameter, from provided a variety of secrecy enhancing logics, the corresponding secrecy of invocation target secrecy enhancing algorithm increases
Strong logic carries out secrecy enhancing to the second data and obtains third data.
Similarly, QKD executes sub- equipment and additionally provides a variety of key verification logics, when carrying out key verification to third data,
According to control parameter, from provided a variety of key verification logics, the corresponding key verification logic of invocation target checking algorithm,
Key verification is carried out to third data and obtains the 4th data.
It is understood that at the same time, the QKD in the opposite end QKD equipment of QKD system executes sub- equipment, phase is also used
Same basic vector compares logic, error correction logic, and secrecy enhancing logic and key verification logic handle the data, obtain
Quantum key.
In one example, QKD executes sub- equipment during generating quantum key, state table is generated, by the state
Table feeds back to the sub- equipment of QKD control for belonging to the same QKD equipment.QKD controls sub- equipment and receives the state table, to know
QKD executes the operating condition that sub- equipment generates quantum key process.Such as: QKD executes sub- equipment and is generating quantum key process
In, state table includes counting rate, at code rate, error rate, size of key and exception information etc..In addition, QKD executes sub- equipment institute
The quantum hardware device of offer, QKD protocol type, basic vector alignment algorithm, key error correction algorithm, secrecy enhancing algorithm, key school
The relevant informations such as checking method can all be fed back to QKD by state table and control sub- equipment.
QKD controls sub- equipment, maintains a workflow management module, handles the state table that the QKD executes sub- equipment feedback,
Real time monitoring QKD executes the operating condition of sub- equipment.
In one example, QKD controls sub- equipment and also maintains a QKD management module, which can be real
Existing following functions: first, management QKD executes storage method used by quantum key of the sub- equipment to generation, and encryption method is close
Key classification stage division；Second, setting user uses the permission of quantum key.
Similar, QKD executes one key management module of sub- plant maintenance, is capable of providing following function: first, according to
QKD executes the storage method of sub- device configuration, encryption method, and key classification stage division divides the quantum key of generation
Class, classification, encryption storage；Second, user is authenticated, after the authentication is passed, quantum key service is provided the user with, by quantum
Key encryption output.
As shown in the above, the embodiment of the present application has the advantages that
QKD executes sub- equipment and provides multiple quantum hardware devices, and the QKD suitable for each quantum hardware device is assisted
Type is discussed, can satisfy demand of the user to the quantum key generated based on different physics realization principles.QKD controls sub- equipment,
Quantum hardware device and QKD protocol type needed for QKD executes sub- equipment triggering can be controlled, required quantal data is generated.
Sub- equipment is controlled based on QKD and QKD executes sub- equipment, realizes control logic and hardware realization separation, flexibility is good, expansibility
High QKD technical solution is suitable for the diversified demand of user.
Fig. 3 is that QKD provided in an embodiment of the present invention controls sub- device structure schematic diagram, comprising:
Choice Method module 301, for choosing the mark of target quantum hardware device, the target quantum hardware device is
Local QKD executes a quantum hardware device in multiple quantum hardware devices that sub- equipment provides.
QKD agreement match module 302, for from be suitable for the target quantum hardware device a variety of QKD protocol types
In, select a kind of QKD protocol type as target QKD protocol type.
Parameter selecting module 303, for choosing target cipher key processing parameter, the target cipher key processing parameter is for calling
Target cipher key handles logic, carries out processing to the data that the target quantum hardware device generates and generates quantum key.
Control module 304, for the mark according to the target quantum hardware device, the target QKD protocol type, with
And the target cipher key processing parameter, control parameter is generated, the control parameter is sent to local QKD execution and is set
It is standby, it controls the local QKD and executes sub- equipment generation quantum key.
In one example, the Choice Method module 301 includes:
Display unit, for showing that the local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides；
Response unit obtains institute for the selection operation in response to user from the mark of the multiple quantum hardware device
State the mark of target quantum hardware device.
In one example, the Choice Method module 301 includes:
Acquiring unit executes the mark for multiple quantum hardware devices that sub- equipment provides for obtaining opposite end QKD, described right
It is to execute sub- equipment in QKD system with the local QKD and led to using quantum key distribution network that end QKD, which executes sub- equipment,
The opposite equip. of letter；
Extraction unit, for extracting, the local QKD executes sub- equipment and the opposite end QKD executes the amount of sub- collaborative share
The mark of sub- hardware device；
Selecting unit, for selecting a quantum hardware device from the mark of the shared quantum hardware device
Identify the mark as the target quantum hardware device.
In one example, the sub- equipment of control further include:
Monitoring module, the state table of sub- equipment feedback is executed for receiving the local QKD, and the state table is used for
It characterizes the local QKD and executes sub- equipment and generate operating condition during quantum key.
QKD as shown in Figure 3 controls sub- equipment
Existing mode is similar with method shown in FIG. 1, and with reference to the description in method shown in FIG. 1, which is not described herein again.
Fig. 4 is that QKD provided in an embodiment of the present invention executes sub- device structure schematic diagram, comprising:
Receiving module 401 controls the control parameter that sub- equipment is sent for receiving local QKD, and the control parameter includes
The mark of target quantum hardware device, target QKD protocol type and target cipher key processing parameter.
Quantum hardware module 402, the quantum hardware module include multiple quantum hardware devices, for hard from multiple quantum
In part equipment, according to the mark of the target quantum hardware device, the mark of the target quantum hardware device is called to be identified
Target quantum hardware device, generate corresponding with target QKD protocol type data.
Protocol adaptation module 403, the protocol adaptation module include multiple QKD protocol types, are used for from multiple QKD agreements
In type, the target QKD protocol type is selected.
Key handling module 404 is used for according to the target cipher key processing parameter invocation target key handling logic, to institute
It states data and carries out processing acquisition quantum key.
In one example, the target cipher key processing parameter includes target basic vector alignment algorithm, target error correction algorithm, mesh
Mark secrecy enhancing algorithm, object identifier algorithm, the key handling module 404 include:
Basic vector comparing unit, for comparing logic using the corresponding basic vector of the target basic vector alignment algorithm, to the number
The first data of acquisition are compared according to basic vector is carried out；
Error correction unit, the error correction unit include a variety of error correction logics, for calling the target error correction algorithm corresponding
Error correction logic carries out key error correction to first data and obtains the second data；
Secrecy enhancement unit, the secrecy enhancement unit includes a variety of secrecy enhancing logics, for calling the target to protect
The corresponding secrecy of close enhancing algorithm enhances logic, carries out secrecy enhancing to second data and obtains third data；
Key verification unit, the key verification unit include a variety of check logics, for calling the object identifier to calculate
The corresponding check logic of method carries out key verification to the third data and obtains quantum key.
It is in one example, described to execute sub- equipment further include:
Key management module, for carrying out cipher key management operation, the key management behaviour to the quantum key of generation
Make to include that key information is inquired, key encryption storage and key encryption output.
QKD shown in Fig. 4 executes sub- equipment
Mode is similar with method shown in Fig. 2, and with reference to the description in method shown in Fig. 2, which is not described herein again.
Fig. 5 is QKD equipment provided in an embodiment of the present invention, comprising:
One QKD shown in Fig. 3 controls sub- equipment 501 and at least one QKD shown in Fig. 4 executes sub- equipment 502.
QKD equipment shown in fig. 5 is and equipment, specific implementation and Fig. 1 corresponding to Fig. 1 and method shown in Fig. 2
Similar with method shown in Fig. 2, the description in method referring to fig. 1 and fig. 2, which is not described herein again.
Fig. 6 is QKD system provided in an embodiment of the present invention, comprising:
Two QKD equipment shown in fig. 5, a QKD equipment are used as local QKD equipment 601, another QKD equipment conduct
Opposite end QKD equipment 602.
Wherein, when local QKD equipment is as transmitting terminal QKD equipment, opposite end QKD equipment is as receiving end QKD equipment；Accordingly
, when local QKD equipment is as receiving end QKD equipment, opposite end QKD equipment is as transmitting terminal QKD equipment.
Transmitting terminal QKD equipment, using the target quantum hardware device in the sub- equipment of execution of transmitting terminal QKD equipment, with
Machine generates basic vector related data and primary key data, and according to the basic vector related data and primary key data to optical signal into
Row coding sends the optical signal after encoding to receiving end QKD equipment.Aim parameter in the sub- equipment of execution of receiving end QKD equipment
Sub- hardware device, it is random to generate basic vector related data, and the light that transmitting terminal QKD equipment is sent is received according to the basic vector related data
Signal is decoded, then carries out photoelectric conversion to decoded optical signal, obtains primary key data.
The above is only the preferred embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (16)
1. a kind of quantum key distribution QKD control method, which is characterized in that the described method includes:
The mark of target quantum hardware device is chosen, the target quantum hardware device is that local QKD executes sub- equipment offer
A quantum hardware device in multiple quantum hardware devices；
From suitable for a variety of QKD protocol types of the target quantum hardware device, select a kind of QKD protocol type as mesh
Mark QKD protocol type；
Target cipher key processing parameter is chosen, the target cipher key processing parameter is used for invocation target key handling logic, to described
The data that target quantum hardware device generates carry out processing and generate quantum key；
According to the mark of the target quantum hardware device, the target QKD protocol type and target cipher key processing ginseng
Number generates control parameter, and the control parameter is sent to the local QKD and executes sub- equipment, controls the local QKD and executes
Sub- equipment generates quantum key.
2. the method according to claim 1, wherein the mark for choosing target quantum hardware device includes:
Show that the local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides；
In response to user from the selection operation of the mark of the multiple quantum hardware device, the target quantum hardware device is obtained
Mark.
3. the method according to claim 1, wherein the mark for choosing target quantum hardware device includes:
The mark that opposite end QKD executes multiple quantum hardware devices that sub- equipment provides is obtained, the opposite end QKD, which executes sub- equipment, is
In QKD system, the opposite equip. that sub- equipment uses quantum key distribution network to be communicated is executed with the local QKD；
Extract the local QKD execute sub- equipment and the opposite end QKD execute sub- collaborative share quantum hardware device mark；
From the mark of the shared quantum hardware device, select the mark of a quantum hardware device as the aim parameter
The mark of sub- hardware device.
4. method according to claim 1 to 3, which is characterized in that the method also includes:
The state table that the local QKD executes sub- equipment feedback is received, the state table executes son for characterizing the local QKD
Equipment generates the operating condition during quantum key.
5. a kind of quantum key distribution QKD executes method, which is characterized in that the described method includes:
It receives local QKD and controls the control parameter that sub- equipment is sent, the control parameter includes the mark of target quantum hardware device
Know, target QKD protocol type and target cipher key processing parameter；
From multiple quantum hardware devices, according to the mark of the target quantum hardware device, the target quantum hardware is called
The target quantum hardware device that the mark of equipment is identified generates data corresponding with the target QKD protocol type；
According to the target cipher key processing parameter invocation target key handling logic, it is close that processing acquisition quantum is carried out to the data
Key.
6. according to the method described in claim 5, it is characterized in that, the target cipher key processing parameter includes that target basic vector compares
Algorithm, target error correction algorithm, target secrecy enhancing algorithm, object identifier algorithm are described according to the target cipher key processing parameter
Invocation target key handling logic, carrying out processing acquisition quantum key to the data includes:
Logic is compared using the corresponding basic vector of the target basic vector alignment algorithm, basic vector is carried out to the data and compares acquisition first
Data；
The corresponding error correction logic of the target error correction algorithm is called, key error correction is carried out to first data and obtains the second number
According to；
The corresponding secrecy enhancing logic of the target secrecy enhancing algorithm is called, secrecy enhancing is carried out to second data and is obtained
Third data；
The corresponding check logic of the object identifier algorithm is called, it is close to carry out key verification acquisition quantum to the third data
Key.
7. according to method as claimed in any one of claims 5 to 6, which is characterized in that the method also includes:
Cipher key management operation is carried out to the quantum key of generation, the cipher key management operation includes key information inquiry, close
Key encryption storage and key encryption output.
8. a kind of quantum key distribution QKD controls sub- equipment, which is characterized in that the sub- equipment of control includes:
Choice Method module, for choosing the mark of target quantum hardware device, the target quantum hardware device is local QKD
Execute a quantum hardware device in multiple quantum hardware devices that sub- equipment provides；
QKD agreement matches module, for selecting from suitable for a variety of QKD protocol types of the target quantum hardware device
A kind of QKD protocol type is as target QKD protocol type；
Parameter selecting module, for choosing target cipher key processing parameter, the target cipher key processing parameter is close for invocation target
Key handles logic, carries out processing to the data that the target quantum hardware device generates and generates quantum key；
Control module, for the mark according to the target quantum hardware device, the target QKD protocol type and described
Target cipher key processing parameter generates control parameter, and the control parameter is sent to the local QKD and executes sub- equipment, control
The local QKD executes sub- equipment and generates quantum key.
9. the sub- equipment of control according to claim 8, which is characterized in that the Choice Method module includes:
Display unit, for showing that the local QKD executes the mark for multiple quantum hardware devices that sub- equipment provides；
Response unit obtains the mesh for the selection operation in response to user from the mark of the multiple quantum hardware device
The mark of the sub- hardware device of scalar.
10. the sub- equipment of control according to claim 8, which is characterized in that the Choice Method module includes:
Acquiring unit executes the mark for multiple quantum hardware devices that sub- equipment provides, the opposite end for obtaining opposite end QKD
It is to execute sub- equipment in QKD system with the local QKD and communicated using quantum key distribution network that QKD, which executes sub- equipment,
Opposite equip.；
Extraction unit is hard for extracting the quantum that the local QKD executes sub- equipment and the opposite end QKD executes sub- collaborative share
The mark of part equipment；
Selecting unit, for selecting the mark of a quantum hardware device from the mark of the shared quantum hardware device
Mark as the target quantum hardware device.
11. according to the sub- equipment of control described in claim 8-10 any one, which is characterized in that the sub- equipment of control is also wrapped
It includes:
Monitoring module executes the state table of sub- equipment feedback for receiving the local QKD, and the state table is for characterizing
The local QKD executes the operating condition during sub- equipment generation quantum key.
12. a kind of quantum key distribution QKD executes sub- equipment, which is characterized in that described to execute sub- equipment and include:
Receiving module controls the control parameter that sub- equipment is sent for receiving local QKD, and the control parameter includes target quantum
The mark of hardware device, target QKD protocol type and target cipher key processing parameter；
Quantum hardware module, the quantum hardware module include multiple quantum hardware devices, are used for from multiple quantum hardware devices
In, according to the mark of the target quantum hardware device, the target for calling the mark of the target quantum hardware device to be identified
Quantum hardware device generates data corresponding with the target QKD protocol type；
Protocol adaptation module, the protocol adaptation module include multiple QKD protocol types, are used for from multiple QKD protocol types,
Select the target QKD protocol type；
Key handling module is used for according to the target cipher key processing parameter invocation target key handling logic, to the data
It carries out processing and obtains quantum key.
13. according to claim 12 execute sub- equipment, which is characterized in that the target cipher key processing parameter includes target
Basic vector alignment algorithm, target error correction algorithm, target secrecy enhancing algorithm, object identifier algorithm, the key handling module include:
Basic vector comparing unit, for comparing logic using the corresponding basic vector of the target basic vector alignment algorithm, to the data into
Row basic vector, which compares, obtains the first data；
Error correction unit, the error correction unit include a variety of error correction logics, for calling the corresponding error correction of the target error correction algorithm
Logic carries out key error correction to first data and obtains the second data；
Secrecy enhancement unit, the secrecy enhancement unit includes a variety of secrecy enhancing logics, for calling the target secrecy to increase
The corresponding secrecy of strong algorithms enhances logic, carries out secrecy enhancing to second data and obtains third data；
Key verification unit, the key verification unit include a variety of check logics, for calling the object identifier algorithm pair
The check logic answered carries out key verification to the third data and obtains quantum key.
14. the sub- equipment of execution described in 2-13 any one according to claim 1, which is characterized in that described to execute sub- equipment also
Include:
Key management module, for carrying out cipher key management operation, the cipher key management operation packet to the quantum key of generation
Include key information inquiry, key encryption storage and key encryption output.
15. a kind of quantum key distribution QKD equipment, which is characterized in that the QKD equipment includes:
QKD described in one claim 8-11 any one controls sub- equipment, at least one claim 12-14 any one
The QKD executes sub- equipment.
16. a kind of quantum key distribution QKD system, which is characterized in that the QKD system includes:
QKD equipment described in two claims 15, the QKD equipment are used as local QKD equipment, another QKD equipment
As opposite end QKD equipment.
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