CN109996025A - Adaptive audio/video communication methods, devices and systems based on quantum communications - Google Patents
Adaptive audio/video communication methods, devices and systems based on quantum communications Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 72
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the present application discloses a kind of adaptive audio/video communication method and relevant apparatus based on quantum communications, when needing based on quantum communications transmission audio, video data, quantum key is obtained into code rate and audio, video data, to which determining at code rate according to quantum key and quantum key is at the matched coding parameter of code rate, which determined from audio, video data.Since coding parameter is to be determined according to quantum key at code rate, if quantum key is low at code rate, it is determined that go out with low amounts sub-key into the matched coding parameter of code rate；If quantum key is at code rate height, it is determined that go out with high quantum key into the matched coding parameter of code rate.Coding parameter at adaptability of coding rate is selected according to quantum key, object transmission content is encoded at the coding parameter that code rate is adapted using with quantum key, not only it can guarantee being perfectly safe for quantum communications, but also the fidelity of audio, video data can be improved to greatest extent.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of adaptive audio/video communication side based on quantum communications
Method, device and system.
Background technique
In the audio/video communication system based on quantum communications, pass through quantum key distribution (quantum key
Distribution, abbreviation QKD) technology come guarantee communication safety, pass through quantum key secret communication network carry out sound view
Frequency communication is one of very important application.Under normal conditions, the audio, video data at code rate and network of quantum key
It just can guarantee being perfectly safe for communication when code rate matches.For example, audio, video data code rate is 32kbps, then quantum key
Being perfectly safe for communication can be guaranteed by needing at least 32kbps just at code rate.
It needs to encode audio, video data when audio/video communication, the audio-video obtained using the coding mode of high code rate
Data bit rate is higher, correspondingly, in order to guarantee communication be perfectly safe, quantum key it is more demanding at code rate.Currently, quantum
Key it is relatively low under normal circumstances at code rate, therefore, in traditional audio/video communication method based on quantum communications, to sound regard
Then frequency is transmitted the audio, video data after coding, according to the coding mode using low bit- rate thus under any circumstance
Guarantee being perfectly safe for communication.
But audio, video data is encoded using the coding mode of low bit- rate, so that the fidelity of audio, video data
It is very low, seriously affect the audio, video data quality of transmission.
Summary of the invention
In order to solve the above-mentioned technical problem, this application provides a kind of adaptive audio/video communication side based on quantum communications
Method, device and system can not only guarantee being perfectly safe for quantum communications, but also can improve the guarantor of audio, video data to greatest extent
True degree.
The embodiment of the present application discloses following technical solution:
In a first aspect, the embodiment of the present application provides a kind of adaptive audio/video communication method based on quantum communications, it is described
Method includes:
Quantum key is obtained into code rate and audio, video data；
According to the quantum key at code rate determination and the quantum key at the matched coding parameter of code rate；The target
Transferring content is determined from the audio, video data；
The object transmission content is encoded using the coding parameter, and using quantum key to the mesh after coding
Mark transferring content is encrypted, and sends encryption data to recipient by encryption gateway.
Optionally, after the acquisition quantum key is at code rate, the method also includes:
If the quantum key is lower than preset threshold at code rate, mesh is determined from the audio, video data according to preset strategy
Mark transferring content.
It optionally, include the coding parameter in the encryption data.
Optionally, described to be joined with the quantum key at the matched coding of code rate according to the quantum key at code rate is determining
Number, comprising:
Negotiate the coding parameter at code rate and the recipient according to the quantum key.
Second aspect, the embodiment of the present application provides a kind of adaptive audio/video communication method based on quantum communications, described
Method includes:
The encryption data that sender sends is obtained by encryption gateway；
The encryption data is decrypted using quantum key, obtains ciphertext data, includes compiling in the ciphertext data
Object transmission content after code；
It obtains and quantum key at the matched coding parameter of code rate, and according to the coding parameter determines decoding parametric；
The object transmission content after the coding is decoded using the decoding parametric, is obtained in the object transmission
Hold.
Optionally, include the coding parameter in the encryption data, further include the coding ginseng in the ciphertext data
Number；
The acquisition and quantum key are at the matched coding parameter of code rate, comprising:
The coding parameter is obtained from the ciphertext data.
Optionally, the acquisition and quantum key are at the matched coding parameter of code rate, comprising:
By negotiating to obtain the coding parameter with described sender.
The third aspect, the embodiment of the present application provides a kind of adaptive audio/video communication device based on quantum communications, described
Device includes:
Acquiring unit includes target in the audio, video data for obtaining quantum key into code rate and audio, video data
Transferring content；
Determination unit, for determining at code rate according to the quantum key and the quantum key to be at the matched coding of code rate
Parameter；
Coding unit, for being encoded using the coding parameter to the object transmission content, and it is close using quantum
Key encrypts the object transmission content after coding, sends encryption data to recipient by encryption gateway.
Optionally, the determination unit, is also used to:
If the quantum key is lower than preset threshold at code rate, mesh is determined from the audio, video data according to preset strategy
Mark transferring content.
It optionally, include the coding parameter in the encryption data.
Optionally, the determination unit, is specifically used for:
Negotiate the coding parameter at code rate and the recipient according to the quantum key.
Fourth aspect, the embodiment of the present application provides a kind of adaptive audio/video communication device based on quantum communications, described
Device includes:
First acquisition unit, for obtaining the encryption data that sender sends by encryption gateway；
Decryption unit obtains ciphertext data, the decryption for the encryption data to be decrypted using quantum key
It include the object transmission content after coding in data；
Second acquisition unit for acquisition and quantum key at the matched coding parameter of code rate, and is joined according to the coding
Number determines decoding parametric；
Decoding unit is obtained for being decoded using the decoding parametric to the object transmission content after the coding
The object transmission content.
Optionally, include the coding parameter in the encryption data, further include the coding ginseng in the ciphertext data
Number；
The second acquisition unit, is used for:
The coding parameter is obtained from the ciphertext data.
Optionally, the second acquisition unit, is used for:
By negotiating to obtain the coding parameter with described sender.
5th aspect, the embodiment of the present application provides a kind of adaptive audio/video communication system based on quantum communications, described
System includes sender, recipient, the first quantum key generating device and the second quantum key generating device, the first encryption gateway
With the second encryption gateway, sender is connect by the first encryption gateway with the first quantum key generating device, and recipient passes through the
Two encryption gateways are connect with the second quantum key generating device:
First quantum key generating device and the second quantum key generating device are for generating quantum key；
Sender, for obtaining the quantum key of quantum key generating device into code rate and audio, video data；According to described
Quantum key is determining at code rate and the quantum key is at the matched coding parameter of code rate；The object transmission content is from described
It is determined in audio, video data；The object transmission content is encoded using the coding parameter, and utilizes the quantum
Object transmission content after key pair coding is encrypted, and sends encryption data to recipient by first encryption gateway；
Recipient, for obtaining the encryption data that sender sends by second encryption gateway；Utilize the quantum
Encryption data described in key pair is decrypted, and obtains ciphertext data, includes in the object transmission after encoding in the ciphertext data
Hold；It obtains and quantum key at the matched coding parameter of code rate, and according to the coding parameter determines decoding parametric；Using described
Decoding parametric is decoded the object transmission content after the coding, obtains the object transmission content.
It can be seen from above-mentioned technical proposal when needing based on quantum communications transmission audio, video data, it is close to obtain quantum
Key is at code rate and audio, video data, to be joined at code rate determination and quantum key at the matched coding of code rate according to quantum key
Number, the object transmission content are determined from audio, video data.Since coding parameter is to be determined according to quantum key at code rate
, if quantum key is low at code rate, it is determined that go out with low amounts sub-key into the matched coding parameter of code rate；If quantum key is at code
Rate is high, it is determined that goes out with high quantum key into the matched coding parameter of code rate.It at adaptability of coding rate is selected according to quantum key
Coding parameter encodes object transmission content at the coding parameter that code rate is adapted using with quantum key, can both protect
Card quantum communications are perfectly safe, and can improve the fidelity of audio, video data to greatest extent.
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 without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of structure of the adaptive audio/video communication system based on quantum communications provided by the embodiments of the present application
Figure；
Fig. 2 is that a kind of signaling of adaptive audio/video communication method based on quantum communications provided by the embodiments of the present application is handed over
Mutually figure；
Fig. 3 is a kind of processing stream of the adaptive audio/video communication method based on quantum communications provided by the embodiments of the present application
Journey；
Fig. 4 is a kind of structure of the adaptive audio/video communication device based on quantum communications provided by the embodiments of the present application
Figure；
Fig. 5 is a kind of structure of the adaptive audio/video communication device based on quantum communications provided by the embodiments of the present application
Figure.
Specific embodiment
With reference to the accompanying drawing, embodiments herein is described.
Currently, in order to guarantee being perfectly safe for communication, in the audio/video communication method based on quantum communications, to audio-video number
It is encoded according to using the coding mode of low bit- rate.But audio, video data is encoded using the coding mode of low bit- rate,
So that the fidelity of audio, video data is very low, the audio, video data quality of transmission is seriously affected.
In order to solve the above-mentioned technical problem, it is logical to provide a kind of adaptive audio-video based on quantum communications for the embodiment of the present application
Letter method.Generation technique due to quantum key is being constantly progressive, and future is possible to be substantially increased at code rate, and in addition quantum is close
Key is related at the actual environment that code rate and used key generation device and equipment work, for example, different communication distances,
In the environment of different noises, quantum key will be different at code rate.Therefore, method provided by the present application can be according to quantum
The key adjustment coding parameter adaptive at code rate, under conditions of quantum key allows at code rate, selection can as far as possible
The coding parameter of the high audio, video data of fidelity is obtained, to can not only guarantee being perfectly safe for quantum communications, but also can be most
The fidelity of the raising audio, video data of limits.
Method provided by the embodiments of the present application can be applied in the adaptive audio/video communication system based on quantum communications,
Adaptive audio/video communication system based on quantum communications is as shown in Figure 1, quantum key generating device includes the first quantum key
Generating device 101 and the second quantum key generating device 102.First quantum key generating device 101 and the second quantum key are raw
There is photon channel between forming apparatus 102, pass through the first quantum key generating device 101 and the second quantum key generating device
102 can be generated quantum key.
It further include the first business device 103 and the second business device 104, the first business device 103 and second in the system
Arbitrary equipment can be used as sender in business device 104, then another equipment is as recipient, in the present embodiment, with first
Business device 103 is introduced for being used as sender, the second business device 104 to be used as recipient.
Sender's (the first business device 103) is connected by the first encryption gateway 105 and the first quantum key generating device 101
It connects, recipient's (the second business device 104) is connect by the second encryption gateway 106 with the second quantum key generating device 102:
First quantum key generating device 101 and the second quantum key generating device 102 are for generating quantum key；
Sender's (the first business device 103), for obtaining the quantum key of quantum key generating device into code rate and sound
Video data；According to the quantum key at code rate determination and the quantum key at the matched coding parameter of code rate；The mesh
Mark transferring content is determined from the audio, video data；The object transmission content is compiled using the coding parameter
Code, and encrypts the object transmission content after coding using the quantum key, by first encryption gateway 105 to
Recipient sends encryption data；
Recipient's (the second business device 104), for obtaining adding for sender's transmission by second encryption gateway 106
Ciphertext data；The encryption data is decrypted using the quantum key, ciphertext data is obtained, includes in the ciphertext data
Object transmission content after coding；It obtains and quantum key is at the matched coding parameter of code rate, and is true according to the coding parameter
Definite decoding parameter；The object transmission content after the coding is decoded using the decoding parametric, the target is obtained and passes
Defeated content.
Next, by a kind of adaptive audio/video communication method progress based on quantum communications is provided to the embodiment of the present application
It is discussed in detail.The embodiment of the present application is handed over from sender's (the first business device 103) and recipient's (the second business device 104)
Mutual angle is introduced, referring to fig. 2, which comprises
S201, recipient obtain quantum key into code rate and audio, video data.
Wherein, audio, video data can be what recipient collected, be also possible to recipient from other audio-video collections
It is obtained in equipment.Quantum key can be recipient at code rate and pass through the first encryption gateway from the first quantum key generating device
It obtains, is also possible to what recipient was obtained by test instrumentation, test instrumentation can pass through the first quantum key generating device
Interface directly read quantum key into code rate.
The process flow exemplary diagram of adaptive audio/video communication method based on quantum communications may refer to shown in Fig. 3.Fig. 3
Step in middle upper broken line frame is step performed by sender, and the step in lower broken line frame is step performed by recipient
Suddenly.
S202, recipient join with the quantum key at the matched coding of code rate according to the quantum key at code rate is determining
Number.
Wherein, coding parameter includes at least coding mode, encoding rate, coded format etc..The object transmission content be from
It is determined in the audio, video data.
It should be noted that object transmission content is the content that sender's actual needs is transferred to recipient, object transmission
Content can be the audio, video data itself that recipient gets, and be also possible to the partial content for including in audio, video data, example
It such as only includes audio, only include video.
In the present embodiment, object transmission content is different and different at the height situation of code rate according to quantum key.
Bandwidth needed for the band as needed for transmission audio-video is wider than only transmission wherein video, and be greater than and only transmit needed for its sound intermediate frequency
Bandwidth, if the quantum key at code rate be lower than preset threshold, by audio, video data all to recipient transmission when, may not
It is enough to ensure that fidelity, therefore, sender can determine object transmission content according to preset strategy from the audio, video data.
Wherein, preset strategy can be user setting, and the embodiment of the present application provides user setting interface, referring to Fig. 3
It is shown.User can be with preset strategy by the interface, and preset strategy for example can be video priority or audio priory, i.e., in quantum
Key at code rate as low as (be lower than preset threshold) to a certain degree when, select audio data or video data to make from audio, video data
It is transmitted for object transmission content to recipient.To be passed to recipient in the case where guaranteeing that communication is perfectly safe with fidelity
It is filled the content of sufficient user demand.
S203, sender encode the object transmission content using the coding parameter, and utilize quantum key
Object transmission content after coding is encrypted.
S204, recipient obtain the encryption data that sender sends by encryption gateway.
S205, recipient are decrypted the encryption data using quantum key, obtain ciphertext data.
Wherein, including the object transmission content after coding in ciphertext data.
S206, recipient are obtained and quantum key is at the matched coding parameter of code rate, and is determined according to the coding parameter
Decoding parametric.
It should be noted that recipient's acquisition and quantum key may include more at the mode of the matched coding parameter of code rate
Kind, wherein a kind of mode is that sender sends coding parameter together with object transmission content to recipient, i.e., in encryption data
Including the coding parameter, recipient is allowed to obtain coding parameter from ciphertext data.
Another way can be sender when determining coding parameter, negotiate the coding parameter with recipient, thus
So that the mode of recipient through consultation obtains coding parameter.
S207, the object transmission content after the coding is decoded using the decoding parametric, obtains the target
Transferring content.
After obtaining object transmission content, recipient can play out the object transmission content received recipient.
It should be noted that the present embodiment is with the first business device 103 is sender, the second business device 104 is to connect
It is introduced for debit, at this point, the first business device 103 carries out the step of quantum key is obtained at code rate, if with first
For business device 103 is recipient, the second business device 104 is sender, then the second business device 104 carries out quantum key
The step of being obtained at code rate.
It can be seen from above-mentioned technical proposal when needing based on quantum communications transmission audio, video data, it is close to obtain quantum
Key is at code rate and audio, video data, to be joined at code rate determination and quantum key at the matched coding of code rate according to quantum key
Number, the object transmission content are determined from audio, video data.Since coding parameter is to be determined according to quantum key at code rate
, if quantum key is low at code rate, it is determined that go out with low amounts sub-key into the matched coding parameter of code rate；If quantum key is at code
Rate is high, it is determined that goes out with high quantum key into the matched coding parameter of code rate.It at adaptability of coding rate is selected according to quantum key
Coding parameter encodes object transmission content at the coding parameter that code rate is adapted using with quantum key, can both protect
Card quantum communications are perfectly safe, and can improve the fidelity of audio, video data to greatest extent.
Based on the method that previous embodiment provides, the embodiment of the present application provides a kind of adaptive sound view based on quantum communications
Frequency communication device, referring to fig. 4, described device includes:
Acquiring unit 401 includes mesh in the audio, video data for obtaining quantum key into code rate and audio, video data
Mark transferring content；
Determination unit 402, for matched at code rate with the quantum key at code rate determination according to the quantum key
Coding parameter；
Coding unit 403 for encoding using the coding parameter to the object transmission content, and utilizes quantum
Object transmission content after key pair coding is encrypted, and sends encryption data to recipient by encryption gateway.
Optionally, the determination unit, is also used to:
If the quantum key is lower than preset threshold at code rate, mesh is determined from the audio, video data according to preset strategy
Mark transferring content.
It optionally, include the coding parameter in the encryption data.
Optionally, the determination unit, is specifically used for:
Negotiate the coding parameter at code rate and the recipient according to the quantum key.
The embodiment of the present application provides a kind of adaptive audio/video communication device based on quantum communications, referring to Fig. 5, the dress
It sets and includes:
First acquisition unit 501, for obtaining the encryption data that sender sends by encryption gateway；
Decryption unit 502 obtains ciphertext data for the encryption data to be decrypted using quantum key, described
It include the object transmission content after coding in ciphertext data；
Second acquisition unit 503, for acquisition and quantum key at the matched coding parameter of code rate, and according to the coding
Parameter determines decoding parametric；
Decoding unit 504 is obtained for being decoded using the decoding parametric to the object transmission content after the coding
To the object transmission content.
Optionally, include the coding parameter in the encryption data, further include the coding ginseng in the ciphertext data
Number；
The second acquisition unit, is used for:
The coding parameter is obtained from the ciphertext data.
Optionally, the second acquisition unit, is used for:
By negotiating to obtain the coding parameter with described sender.
It can be seen from above-mentioned technical proposal when needing based on quantum communications transmission audio, video data, it is close to obtain quantum
Key is at code rate and audio, video data, to be joined at code rate determination and quantum key at the matched coding of code rate according to quantum key
Number, the object transmission content are determined from audio, video data.Since coding parameter is to be determined according to quantum key at code rate
, if quantum key is low at code rate, it is determined that go out with low amounts sub-key into the matched coding parameter of code rate；If quantum key is at code
Rate is high, it is determined that goes out with high quantum key into the matched coding parameter of code rate.It at adaptability of coding rate is selected according to quantum key
Coding parameter encodes object transmission content at the coding parameter that code rate is adapted using with quantum key, can both protect
Card quantum communications are perfectly safe, and can improve the fidelity of audio, video data to greatest extent.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and foregoing routine can be stored in a computer readable storage medium, which exists
When execution, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned can be at least one in following media
Kind: read-only memory (English: read-only memory, abbreviation: ROM), RAM, magnetic or disk etc. are various to be can store
The medium of program code.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment it
Between same and similar part may refer to each other, each embodiment focuses on the differences from other embodiments.
For equipment and system embodiment, since it is substantially similar to the method embodiment, so describe fairly simple,
The relevent part can refer to the partial explaination of embodiments of method.Equipment and system embodiment described above is only schematic
, wherein unit may or may not be physically separated as illustrated by the separation member, it is shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.Some or all of the modules therein can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
Those of ordinary skill in the art can understand and implement without creative efforts.
The above, only a kind of specific embodiment of the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of adaptive audio/video communication method based on quantum communications, which is characterized in that the described method includes:
Quantum key is obtained into code rate and audio, video data；
According to the quantum key at code rate determination and the quantum key at the matched coding parameter of code rate；The object transmission
Content is determined from the audio, video data；
The object transmission content is encoded using the coding parameter, and the target after coding is passed using quantum key
Defeated content is encrypted, and sends encryption data to recipient by encryption gateway.
2. the method according to claim 1, wherein after the acquisition quantum key is at code rate, the side
Method further include:
If the quantum key is lower than preset threshold at code rate, determine that target is passed from the audio, video data according to preset strategy
Defeated content.
3. the method according to claim 1, wherein including the coding parameter in the encryption data.
4. the method according to claim 1, wherein it is described according to the quantum key at code rate it is determining with it is described
Quantum key is at the matched coding parameter of code rate, comprising:
Negotiate the coding parameter at code rate and the recipient according to the quantum key.
5. a kind of adaptive audio/video communication method based on quantum communications, which is characterized in that the described method includes:
The encryption data that sender sends is obtained by encryption gateway；
The encryption data is decrypted using quantum key, obtains ciphertext data, includes after encoding in the ciphertext data
Object transmission content；
It obtains and quantum key at the matched coding parameter of code rate, and according to the coding parameter determines decoding parametric；
The object transmission content after the coding is decoded using the decoding parametric, obtains the object transmission content.
6. according to the method described in claim 5, it is characterized in that, in the encryption data include the coding parameter, it is described
It further include the coding parameter in ciphertext data；
The acquisition and quantum key are at the matched coding parameter of code rate, comprising:
The coding parameter is obtained from the ciphertext data.
7. according to the method described in claim 5, it is characterized in that, the acquisition and quantum key are joined at the matched coding of code rate
Number, comprising:
By negotiating to obtain the coding parameter with described sender.
8. a kind of adaptive audio/video communication device based on quantum communications, which is characterized in that described device includes:
Acquiring unit includes object transmission in the audio, video data for obtaining quantum key into code rate and audio, video data
Content；
Determination unit, for determining at code rate according to the quantum key and the quantum key to be at the matched coding parameter of code rate
Object transmission content；
Coding unit for encoding using the coding parameter to the object transmission content, and utilizes quantum key pair
Object transmission content after coding is encrypted, and sends encryption data to recipient by encryption gateway.
9. a kind of adaptive audio/video communication device based on quantum communications, which is characterized in that described device includes:
First acquisition unit, for obtaining the encryption data that sender sends by encryption gateway；
Decryption unit obtains ciphertext data, the ciphertext data for the encryption data to be decrypted using quantum key
In include coding after object transmission content；
Second acquisition unit, for obtaining and quantum key is at the matched coding parameter of code rate, and it is true according to the coding parameter
Definite decoding parameter；
Decoding unit is obtained described for being decoded using the decoding parametric to the object transmission content after the coding
Object transmission content.
10. a kind of adaptive audio/video communication system based on quantum communications, which is characterized in that the system comprises sender,
Recipient, the first quantum key generating device and the second quantum key generating device, the first encryption gateway and the second encryption gateway,
Sender is connect by the first encryption gateway with the first quantum key generating device, and recipient passes through the second encryption gateway and second
The connection of quantum key generating device:
First quantum key generating device and the second quantum key generating device are for generating quantum key；
Sender, for obtaining quantum key into code rate and audio, video data；According to the quantum key at code rate determination and institute
Quantum key is stated into the matched coding parameter of code rate；The object transmission content is determined from the audio, video data；Benefit
The object transmission content is encoded with the coding parameter, and using the quantum key to the object transmission after coding
Content is encrypted, and sends encryption data to recipient by first encryption gateway；
Recipient, for obtaining the encryption data that sender sends by second encryption gateway；Utilize the quantum key
The encryption data is decrypted, ciphertext data is obtained, includes the object transmission content after coding in the ciphertext data；It obtains
It takes and determines decoding parametric at the matched coding parameter of code rate, and according to the coding parameter with the quantum key；Using described
Decoding parametric is decoded the object transmission content after the coding, obtains the object transmission content.
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