CN110224821A - A kind of communication encrypting method of unmanned mobile platform - Google Patents
A kind of communication encrypting method of unmanned mobile platform Download PDFInfo
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- CN110224821A CN110224821A CN201910490994.2A CN201910490994A CN110224821A CN 110224821 A CN110224821 A CN 110224821A CN 201910490994 A CN201910490994 A CN 201910490994A CN 110224821 A CN110224821 A CN 110224821A
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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
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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
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses the communication encrypting methods of unmanned mobile platform, communication means including unmanned mobile device and control device: unmanned mobile device and control device a preset group key simultaneously pass through the group key and realize unmanned mobile device and control device communication encryption process；The communication means of unmanned mobile device control is exchanged between two control devices: present control device will be sent to unmanned mobile device after pipe control device ID waiting and certification code encryption, and present control device is sent to pipe control device waiting after encrypting unmanned mobile device ID, authentication code and preset key；Pipe control device waiting sends self ID, the cipher-text information of authentication code for authenticating to unmanned mobile device, after authenticating successfully, pipe control device waiting takes over unmanned mobile device control, the present invention solves the communication high safety cryptography issue between unmanned mobile device and control device, solves the problems, such as the continuity and secure exchange of unmanned mobile device control when trans-regional moving.
Description
Technical field
The present invention relates to Technique on Quantum Communication fields, and in particular to a kind of communication encrypting method of unmanned mobile platform.
Background technique
Unmanned mobile device is the nothing including unmanned plane, unmanned boat, unmanned submarine, unmanned vehicle, unmanned robot etc.
People controls mobile device, and with the development of unmanned mobile device technology, unmanned mobile device has been widely used in taking photo by plane, ocean
The fields such as mapping, underwater detection, safety patrol inspection, investigation and agricultural operation, have deployment flexibly, operation is accurate, high-efficiency environment friendly
And the advantages that saving a large amount of human cost.Currently, the communication between unmanned mobile device and control station (or control device)
It is essentially all unencryption with control, only with the public and private key encryption system of tradition encryption, once unmanned mobile device
After being captured and disassembled by people's malice, it is very easy to be copied controlling information, while also be easy to causeing loss of data and usurping etc. to ask
Topic.
For unmanned mobile device of remotely cruising, when reaching another region from a region, due to signal cover
It is limited, control handover behavior is necessarily had, handshaking is more troublesome, or even security risk occurs, exists and is disliked by third party
Meaning kidnaps the risk of unmanned mobile device.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of unmanned mobile platform in view of the above shortcomings of the prior art
Communication encrypting method, the communication encrypting method application quanta cryptology technique of this unmanned mobile platform solves unmanned mobile device
Communication high safety cryptography issue between control device, and unmanned mobile device control is prolonged when solving trans-regional moving
The problem of continuous and secure exchange.
To realize the above-mentioned technical purpose, the technical scheme adopted by the invention is as follows:
A kind of communication encrypting method of unmanned mobile platform, the unmanned mobile platform include unmanned mobile device and control
The inside of device, the control device and unmanned mobile device is equipped with quantum cryptography module, the control device and unmanned shifting
Dynamic device wireless communication connection, the control device are connected with encryption equipment, and encryption equipment is connected with QKD；
The communication encrypting method includes that the communication means of unmanned mobile device and control device and trans-regional two are controlled
The communication means of unmanned mobile device control is exchanged between device processed；
Wherein the communication means of unmanned mobile device and control device includes:
A preset group key, the group key are unmanned mobile device and control simultaneously for (1a) unmanned mobile device and control device
The encryption key of device communication processed；
The data clear text of (2a) transmitting terminal is encrypted to ciphertext by the preset key in quantum encrypting module and step (1a),
And it is sent in a manner of wireless signal；
After the receiving end (3a) receives ciphertext, pass through the preset key solution in itself quantum cryptography module and step (1a)
It is close at data clear text；
Transmitting terminal is unmanned mobile device, and receiving end is control device or transmitting terminal is control device, and receiving end is nothing
People's mobile device；
The communication means that unmanned mobile device control is exchanged between two of them control device includes:
The QKD of the QKD at (1b) present control device end and control device end processed waiting negotiates generation pair by quantum channel
The quantum key of title, and it is distributed to the encryption equipment being correspondingly connected with respectively；
The ID of pipe control device waiting and authentication code are encrypted to close by (2b) present control device by quantum encrypting module
Unmanned mobile device is sent to after text, the encryption key which uses is preset key in step (1a)；Simultaneously
The unmanned mobile device ID, authentication code and the preset key that need to exchange control are sent to the encryption of connection by present control device
Machine, encryption equipment encrypt unmanned mobile device ID, authentication code and preset key and are passed through safe lane using quantum key
Send ciphertext to the encryption equipment of pipe control device connection waiting, which is decrypted ciphertext using quantum key, obtains
To unmanned mobile device ID, authentication code and preset key and it is sent to pipe control device waiting；
The ID of itself and authentication code are encrypted to after ciphertext by quantum encrypting module with nothing by (3b) pipe control device waiting
Line aspect is sent, and the encryption key which uses is preset key in step (1a)；
After (4b) unmanned mobile device receives ciphertext, decrypt to obtain by the quantum cryptography module and preset key of itself
The ID and authentication code of pipe control device waiting, unmanned mobile device authenticate the pipe control device waiting that pipe control device waiting is sent
ID and the ID of pipe control device waiting that sends of authentication code and present control device and authentication code it is whether consistent, if certification one
It causes, unmanned mobile device feeds back consistent signal to pipe control device waiting, and pipe control device waiting takes over unmanned mobile device control
System power.
Technical solution as a further improvement of that present invention, the step (1a) specifically include: using key server point
Quantum cryptography module in the other quantum cryptography module in unmanned mobile device and control device fills key, makes unmanned movement
A preset group key, the group key are that the encryption that unmanned mobile device is communicated with control device is close simultaneously for device and control device
Key.
The key of technical solution as a further improvement of that present invention, the cipher key service filling is pseudo random number, commonly
The quantum key of true random number, the true random number that quantum random number generator generates or QKD generation that physical noise source generates.
Technical solution as a further improvement of that present invention, the quantum cryptography module includes encryption/decryption module, communication mould
Block, cipher key storage block and Key Acquisition Module, the Key Acquisition Module are used to obtain the key of key server filling simultaneously
By key storage to cipher key storage block；The data key that the encryption/decryption module is used to store by cipher key storage block is bright
Text carries out cryptographic operation or operation is decrypted to ciphertext, and the communication module is close for obtaining after encrypting encryption/decryption module
Text sends in a manner of wireless signal or receives the ciphertext that transmitting terminal is sent in a manner of wireless signal.
Technical solution as a further improvement of that present invention, the Encryption Algorithm that the quantum cryptography module uses include symmetrical
Encryption Algorithm or one-time pad cipher mode；
Technical solution as a further improvement of that present invention, the key server pass through RJ45 interface communication way, add
The Key Acquisition Module of close TF card communication mode, encryption UKey communication mode or Blue-tooth communication method into quantum encrypting module fills
Infuse key.
Technical solution as a further improvement of that present invention, the authentication code are one section of random number.
The invention has the benefit that the present invention is greatly improved using quantum random number key as Traffic encryption key(TEK)
The safety communicated between unmanned mobile device and control device, on the one hand can effectively prevent because the unmanned mobile device of separate unit is close
The problem of other unmanned mobile device keys caused by key is decrypted also are cracked；On the other hand, quantum random number key has
Truly random property, unpredictability and non-repeated are greatly reduced because unmanned mobile device is monitored, information caused by abduction
Disclosure risk.In addition, unmanned mobile device trans-regional moving control can be achieved in the quantum-key distribution net established by QKD equipment
The function of power and symmetric cryptography intrinsic safety total exchange increases the safety and convenience of trans-regional moving communication.Solves nobody
Communication high safety cryptography issue between mobile device and control device, and solve unmanned mobile device control when trans-regional moving
The problem of making the continuity and secure exchange of power.
Detailed description of the invention
Fig. 1 is the information exchanging process figure that the present embodiment control device exchanges unmanned mobile device control.
Fig. 2 is the structure chart of the present embodiment quantum cryptography module.
Fig. 3 is that the present embodiment key fills procedure chart.
Specific embodiment
A specific embodiment of the invention is further illustrated below according to Fig. 1 to Fig. 3:
The present invention under the premise of not changing the communication module of original unmanned mobile device and control device (such as control station),
Increase quantum encrypting module.In unmanned mobile device, (such as unmanned vehicle, unmanned boat, unmanned submarine, unmanned vehicle are unmanned remote controlled
Device) in, the data clear text of communication enters quantum encrypting module and is encrypted, after forming ciphertext, by communication module with wireless parties
Formula is sent to control device；Equally, the data clear text of the communication in control device enters quantum encrypting module and is encrypted, and is formed close
Wen Hou is wirelessly issued unmanned mobile device by communication module.
When unmanned mobile device trans-regional moving needs to exchange control, certification and key distribution are carried out.This implementation
Example establishes quantum secret communication net using quantum-key distribution equipment, using the quantum key of generation to the ID of unmanned mobile device
It is encrypted with preset key, is sent to another zone control from a zone control.
Firstly, the present embodiment sets up quantum communication network, quantum communications net in the website of the control device of different zones
Network is made of OKD (i.e. quantum-key distribution terminal) and optical fiber etc., can generate in real time symmetrical quantum key at both ends；OKD with
Encryption equipment connection, the quantum key that OKD is generated are transferred to encryption equipment, and encryption equipment can be sent out between control device using quantum key
The information sent carries out encryption and decryption；I.e. control device is connect with encryption equipment；As shown in Figure 1.Each control device and unmanned mobile dress
The inside set is equipped with quantum cryptography module, the structure of quantum cryptography module as shown in Fig. 2, transmitting terminal business datum in plain text into
Enter quantum cryptography module and be encrypted to ciphertext, is sent in a manner of wireless signal again after being encoded by communication module；Receive termination
The wireless signal received is decoded by communication module, and business datum is decrypted into plain text using quantum encryption/decryption module.Amount
The structure of sub- encrypting module includes encryption/decryption module, cipher key storage block, key management module, Key Acquisition Module and communication mould
Block, the wherein effect of encryption/decryption module are as follows: carry out enciphering/deciphering operation using key pair business datum, Encryption Algorithm is supported symmetrical
Encryption Algorithm (such as DES, AES, stream encryption, Shang Mi SM4 algorithm) also supports the exclusive or cipher mode of one-time pad.Key is deposited
The effect of storage module is: storing the secure storage section of quantum key, when quantum encryption/decryption module needs quantum key, can adjust
With the quantum key in quantum password storage module.The effect of key management module is: being managed, realizes close to quantum key
Key is synchronous, obtain, storage, extension, deletes lamp operation, other quantum cryptography correlation modules cooperate under its management.It is close
The effect that key obtains module is: being responsible for quantum key, supports modes, the interfaces such as online key acquisition, the acquisition of offline key on-demand
RJ45, encryption USB, encryption TF card, encryption UKey, bluetooth etc. can be used.
The present embodiment specifically provides a kind of communication encrypting method of unmanned mobile platform, wherein unmanned mobile platform includes nothing
The inside of people's mobile device and control device, control device and unmanned mobile device is equipped with quantum cryptography module, control device
Wirelessly communicate connection with unmanned mobile device and be provided with QKD, encryption equipment in the website of each control device, control device with
Encryption equipment connection, encryption equipment is in QKD connection；Communication encrypting method include unmanned mobile device and control device communication means and
The communication means of unmanned mobile device control is exchanged between two trans-regional control devices.
Wherein the communication means of unmanned mobile device and control device includes:
Before (1a) operation, using key server respectively to the quantum cryptography module and control device in unmanned mobile device
Interior quantum cryptography module fills key, makes between unmanned mobile device and control device that a preset group key, the group are close simultaneously
Key is the encryption key that unmanned mobile device is communicated with control device.The filling process of key server is referring to Fig. 3, cipher key service
Device is that multiple unmanned mobile devices and control device carry out filling key, wherein k1, k2 ... to be respectively unmanned mobile device
1, the key of the unmanned mobile device n filling of unmanned mobile device 2....One control device can control multiple unmanned mobile devices
Operation, multiple unmanned mobile devices can be communicated with the same control device.The key server of the present embodiment has management
The functions such as key application apparatus, filling key, before operation, key server fills to unmanned mobile device with control device close
Key, the key of filling can be pseudo random number, the true random number that General Physics noise source generates, quantum random number generator and generate
True random number and the quantum key that generates of QKD, key filling includes that encryption TF card, encryption UKey, bluetooth etc. closely pass
Defeated mode, both facilitated key to distribute, and key can also be distributed to control in a small range.It is necessary to ensure that filling safety.
In encryption/decryption module and step (1a) of the data clear text of (2a) transmitting terminal by the quantum cryptography module in it
Preset key is encrypted to ciphertext, and is sent in a manner of wireless signal by communication module.Receiving end is connect by communication module
After receiving ciphertext, data are decrypted by the preset key in the encryption/decryption module and step (1a) of the quantum cryptography module of itself
In plain text.Transmitting terminal is unmanned mobile device, receiving end is control device or transmitting terminal is control device, receiving end is for nobody
Mobile device.
It includes (wherein transregional that the communication means of unmanned mobile device control is exchanged between two trans-regional control devices
Two control devices in domain are denoted as present control device and pipe control device waiting):
The QKD of the website of the QKD at the website end of (1b) present control device and pipe control device waiting passes through quantum channel
Negotiate to generate symmetrical quantum key (hereinafter referred to as quantum key), and is distributed to is correspondingly connected with by online distribution mode respectively
Encryption equipment；
(2b) when unmanned mobile device needs to exchange control, present control device by the ID of pipe control device waiting and
Authentication code is encrypted to after ciphertext by the encryption/decryption module in quantum encrypting module and is sent to unmanned movement by communication module
Device, for the encryption key which uses for preset key in step (1a), authentication code is one section of random number；Simultaneously
The unmanned mobile device ID, authentication code and the preset key that need to exchange control are sent to the encryption of connection by present control device
Machine, encryption equipment use quantum key (the symmetrical quantum key that the quantum key is distributed for QKD) to unmanned mobile device ID, recognize
Card code and preset key encrypt and ciphertext is sent pipe control device waiting by the safe lane by establishing between encryption equipment
The encryption equipment of connection, the encryption equipment are decrypted ciphertext using quantum key, and unmanned mobile device ID, authentication code and pre- are obtained
It sets key and is sent to pipe control device waiting；
(3b) pipe control device waiting adds the ID of itself and authentication code by the encryption/decryption module in quantum encrypting module
Close to send at after ciphertext and by communication module, the encryption key which uses is preset in step (1a)
Key；
After (4b) unmanned mobile device receives ciphertext by communication module, pass through the quantum cryptography module and preset of itself
Key decrypts to obtain the ID and authentication code of pipe control device waiting, unmanned mobile device authenticate that pipe control device waiting sends to
The ID and authentication code for the pipe control device waiting that the ID and authentication code of adapter tube control device and present control device are sent whether one
It causes, if certification is consistent, unmanned mobile device feeds back consistent signal to pipe control device waiting, and pipe control device waiting takes over nobody
Mobile device control, pipe control device waiting start to control unmanned mobile device operation.Later period pipe control device waiting and nothing
Preset key before the still use of the communication mode of people's mobile device.
When the key server of the present embodiment is respectively in the quantum cryptography module and control device in unmanned mobile device
Quantum cryptography module filling key generated using QKD quantum key (i.e. above-mentioned symmetric key) when, due to
The QKD at adapter tube control device end also has a quantum key, and can not have to will be pre- at present control device end when exchanging control
It sets cipher key delivery and manages device end processed to waiting, it only need to be waiting by the identification transmission of preset key to control device end processed waiting
The encryption equipment for managing device end processed is sent to control dress by the preset key that the mark of preset key chooses corresponding mark in it
It sets.Because QKD is symmetric key in the key that both ends generate, the distribution of key is had been completed.
Key Acquisition Module is used to obtain the key of key server filling simultaneously in quantum cryptography module in the present embodiment
By key storage to cipher key storage block；The data key plaintext that encryption/decryption module is used to store by cipher key storage block into
Operation is decrypted to ciphertext in row cryptographic operation, and the ciphertext that communication module is used to obtain after encrypting encryption/decryption module is with wireless
Aspect sends or receives the ciphertext that transmitting terminal is sent in a manner of wireless signal.
Key server in the present embodiment can pass through RJ45 interface communication way, encryption TF card communication mode, encryption
The Key Acquisition Module of UKey communication mode or Blue-tooth communication method into quantum encrypting module fills key.
Unmanned mobile device and a preset group key between control device in the present embodiment are used as unmanned mobile dress
Set communicate, control between controller, data transmission encryption and decryption key.Using pre- between unmanned mobile device and control device
The cipher mode for setting key may is that the one-time pad of bit exclusive or formula, stream secrete key encryption, packet key encryption etc.；Control dress
It sets for controlling unmanned mobile device operation, control device can be located at ground, island, underwater, another unmanned mobile device, ship
Or on other any mobile or fixed carriers.
The present embodiment substantially increases unmanned mobile device and control using quantum random number key as Traffic encryption key(TEK)
On the one hand the safety communicated between device processed can effectively prevent caused by being decrypted because of the unmanned mobile device key of separate unit other
The problem of unmanned mobile device key is also cracked；On the other hand, quantum random number key has truly random property, unpredictability
And non-repeated, it greatly reduces because unmanned mobile device is monitored, information leakage risk caused by abduction.In addition, passing through
The trans-regional control of unmanned mobile device and symmetric cryptography intrinsic safety total exchange can be achieved in the quantum-key distribution net that QKD equipment is established
Function, increase trans-regional moving communication safety and convenience.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that each fall within of the invention
Protection scope.
Claims (7)
1. a kind of communication encrypting method of unmanned mobile platform, which is characterized in that the unmanned mobile platform includes unmanned mobile
The inside of device and control device, the control device and unmanned mobile device is equipped with quantum cryptography module, the control dress
It sets to wirelessly communicate with unmanned mobile device and connect, the control device is connected with encryption equipment, and encryption equipment is connected with QKD；
The communication encrypting method includes the communication means and trans-regional two controls dress of unmanned mobile device and control device
The communication means of unmanned mobile device control is exchanged between setting；
Wherein the communication means of unmanned mobile device and control device includes:
A preset group key, the group key are that unmanned mobile device and control fill simultaneously for (1a) unmanned mobile device and control device
Set the encryption key of communication；
The data clear text of (2a) transmitting terminal is encrypted to ciphertext by the preset key in quantum encrypting module and step (1a), and with
Wireless signal mode is sent；
After the receiving end (3a) receives ciphertext, it is decrypted by the preset key in itself quantum cryptography module and step (1a)
Data clear text；
Transmitting terminal is unmanned mobile device, and receiving end is control device or transmitting terminal is control device, and receiving end is unmanned moves
Dynamic device；
The communication means that unmanned mobile device control is exchanged between two of them control device includes:
The QKD of the QKD at (1b) present control device end and control device end processed waiting negotiates to generate symmetrical by quantum channel
Quantum key, and it is distributed to the encryption equipment being correspondingly connected with respectively；
After the ID of pipe control device waiting and authentication code are encrypted to ciphertext by quantum encrypting module by (2b) present control device
It is sent to unmanned mobile device, the encryption key which uses is preset key in step (1a)；It is current simultaneously
The unmanned mobile device ID, authentication code and the preset key that need to exchange control are sent to the encryption equipment of connection by control device,
Encryption equipment carries out encryption to unmanned mobile device ID, authentication code and preset key using quantum key and will be close by safe lane
Text is sent to the encryption equipment of pipe control device connection waiting, which is decrypted ciphertext using quantum key, obtains nothing
People's mobile device ID, authentication code and preset key are simultaneously sent to pipe control device waiting；
The ID of itself and authentication code are encrypted to after ciphertext by quantum encrypting module with wireless communication by (3b) pipe control device waiting
Number mode is sent, and the encryption key which uses is preset key in step (1a)；
After (4b) unmanned mobile device receives ciphertext, decrypt to obtain by itself quantum cryptography module and preset key waiting
The ID and authentication code of pipe control device, unmanned mobile device authenticate the ID for the pipe control device waiting that pipe control device waiting is sent
Whether the ID and authentication code of the pipe control device waiting sent with authentication code and present control device are consistent, if certification is consistent, nothing
People's mobile device feeds back consistent signal to pipe control device waiting, and pipe control device waiting takes over unmanned mobile device control.
2. the communication encrypting method of unmanned mobile platform according to claim 1, which is characterized in that the step (1a)
It specifically includes: the quantum cryptography module in unmanned mobile device being added with the quantum in control device respectively using key server
Close module fills key, makes unmanned mobile device and control device a preset group key simultaneously, which is unmanned mobile dress
Set the encryption key communicated with control device.
3. the communication encrypting method of unmanned mobile platform according to claim 2, which is characterized in that the cipher key service is filled
The key of note be pseudo random number, General Physics noise source generate true random number, quantum random number generator generate it is truly random
The quantum key that several or QKD is generated.
4. the communication encrypting method of unmanned mobile platform according to claim 2, which is characterized in that the quantum cryptography mould
Block includes encryption/decryption module, communication module, cipher key storage block and Key Acquisition Module, and the Key Acquisition Module is for obtaining
The key of key server filling and by key storage to cipher key storage block；The encryption/decryption module is for passing through key storage
The data key of module storage carries out cryptographic operation in plain text or operation is decrypted to ciphertext, and the communication module will be for that will add
The ciphertext obtained after deciphering module encryption is sent or is received in a manner of wireless signal transmitting terminal and sent out in a manner of wireless signal
The ciphertext sent.
5. the communication encrypting method of unmanned mobile platform according to claim 4, which is characterized in that the quantum cryptography mould
The Encryption Algorithm that block uses includes symmetric encipherment algorithm or one-time pad cipher mode.
6. the communication encrypting method of unmanned mobile platform according to claim 3, which is characterized in that the key server
Added by RJ45 interface communication way, encryption TF card communication mode, encryption UKey communication mode or Blue-tooth communication method to quantum
Key Acquisition Module in close module fills key.
7. the communication encrypting method of unmanned mobile platform according to claim 1, which is characterized in that the authentication code is one
Section random number.
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| CN114679267A (en) * | 2022-03-25 | 2022-06-28 | 合肥硅臻芯片技术有限公司 | Unmanned aerial vehicle control system based on quantum encryption |
| CN114710276A (en) * | 2022-03-28 | 2022-07-05 | 浙江国盾量子电力科技有限公司 | Quantum encryption satellite communication system and method applied to unmanned aerial vehicle |
| CN115567207A (en) * | 2022-09-29 | 2023-01-03 | 中电信量子科技有限公司 | Method and system for realizing multicast data encryption and decryption by quantum key distribution |
| CN115567205A (en) * | 2022-09-29 | 2023-01-03 | 中电信量子科技有限公司 | Method and system for realizing encryption and decryption of network session data stream by quantum key distribution |
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