CN106454408A - Method, device and system for realizing safe transmission of video streams - Google Patents
Method, device and system for realizing safe transmission of video streams Download PDFInfo
- Publication number
- CN106454408A CN106454408A CN201610918020.6A CN201610918020A CN106454408A CN 106454408 A CN106454408 A CN 106454408A CN 201610918020 A CN201610918020 A CN 201610918020A CN 106454408 A CN106454408 A CN 106454408A
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- China
- Prior art keywords
- video data
- data bag
- video
- top box
- set top
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Classifications
-
- 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, manipulating MPEG-4 scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
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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]
- H04N21/40—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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
Abstract
The invention discloses a method, a device and a system for realizing safe transmission of video streams, relates to the technical field of digital television information security, and is used for solving a technical problem that no corresponding security measure is provided on the aspect of theft prevention for digital television video streams in the prior art. The method comprises the steps that a server performs encryption on video content fields in a video data packet according to a key before sending a video stream to a set top box, wherein the video stream is composed of at least one video data packet; the server adds an encryption identifier to a packet header of the video data packet; and the server sends the video data packet to which the encryption identifier is added to the set top box.
Description
Technical field
The present invention relates to digital television information security technology area, realize, particularly to a kind of, the side that video flowing securely transmits
Method, apparatus and system.
Background technology
User is substantially all and is using DTV now.DTV is one from programme acquisition, program making, program
Transmission until the system end to end of user side all process signals in a digital manner, the broadcast type based on DVB technical standard and " handing over
Mutually formula " DTV. the quality of programme content and quantity can be made by perfection using advanced user management technique and it is use
Family brings more programs to select and more preferable program quality effect, and digital television system can transmit multiple business, such as high definition
Clear degree TV (being abbreviated as " HDTV " or " high definition "), standard definition television (being abbreviated as " SDTV " or " SD "), interactive TV,
BSV is liquid crystal-spliced and data service etc..Compared with simulated television, DTV has picture quality height, program capacity (is greatly
More than 10 times of analog television transmission passage program capacity) and the good feature of sound accompaniment effect.
Set Top Box is equipment during viewing DTV than an indispensable connection television set and outside source.It can
So that the digital signal of compression is changed into television content, and show on a television set.Signal can come from wire cable, satellite
Antenna, broadband network and terrestrial broadcasting.Set Top Box receive content can provide except simulated television image, sound it
Outward, more it is to receive digital content, including electronic program guides, internet webpage, captions etc..Enable users to existing
Watch digital television program on television set, and the amusement of formula digitized, education and commercialization activity can be interacted by network.
With the development of set-top box technique, increasing function can be realized by Set Top Box.Therefore, Set Top Box conduct
Connect an intermediate equipment of DTV and remote server, it also seems more and more heavier to the guarantee of information security aspect
Will.For example, the video flowing that the user paying has stolen digital television signal is not had to be watched；Or the video that user receives
Flow content is stolen, and distort into the video content of other illegal publicity etc..But, in prior art, corresponding DTV
The antitheft aspect of video flowing does not but provide preferable safety measure.
Content of the invention
Present invention offer is a kind of to realize method, the apparatus and system that video flowing securely transmits, for solving in prior art
Do not provide the technical problem of corresponding safety measure for the antitheft aspect of digital TV video frequency stream.
Embodiment of the present invention offer is a kind of to realize the method that video flowing securely transmits, including：
Server, before sending video flowing to Set Top Box, is carried out to the video content field in video data bag according to key
Encryption, wherein, described video flowing is made up of video data bag at least one described；
Server adds encryption identification in the packet header of described video data bag；
The described video data bag adding encryption identification is sent to described Set Top Box by server.
In method provided in an embodiment of the present invention, by using server to Set Top Box send video flowing before, according to close
Key is encrypted to the video content field in video data bag, and wherein, described video flowing is by video counts at least one described
According to bag composition；Add encryption identification in the packet header of described video data bag；And regarding described interpolation encryption identification
Frequency packet is sent to the technological means of described Set Top Box, realizes before server end sends video flowing, in the video play
Appearance is encrypted, and represents whether this video content is encrypted by adding encryption identification, thus can be in guarantee video
While holding safety, tell the set-top box video content encryption of the user side receiving this video content, be easy to machine top
Box is decrypted before video content broadcasting, improves the safety of video content it is ensured that user watches the good experience of video.
Optionally, the method also includes：The packet header of described video data bag is provided with encryption indication field, and described encryption refers to
Show that field is used for indicating whether described video data bag encrypts.
Optionally, described server adds encryption identification in the packet header of described video data bag and includes：
Server adds encryption identification in the encryption indication field that the packet header of described video data bag is arranged.
In method provided in an embodiment of the present invention, realize notice machine by increasing encryption indication field in packet header
Whether this video content of top box is encrypted, facilitates Set Top Box to be deciphered in time for the video content encrypted, it is to avoid in video
Rong Yin encryption cannot play the impact user viewing video content experience leading to.
Optionally, the method also includes：Described key is periodically sent to described Set Top Box by server.
Optionally, the method also includes：Server regularly replaces described key.
In method provided in an embodiment of the present invention, close by add to that video content is encrypted using periodic replacement
Key, and technological means key being periodically sent to Set Top Box to improve the safety of video content, ensure encryption simultaneously
Video content can correctly be deciphered.
Based on same inventive concept, embodiment of the present invention continuation offer is a kind of to realize the device that video flowing securely transmits,
Including：
Encrypting module, for server before sending video flowing to Set Top Box, according to key to regarding in video data bag
Frequency content field is encrypted, and wherein, described video flowing is made up of video data bag at least one described；
Add module, for adding encryption identification in the packet header of described video data bag；
Sending module, for being sent to described Set Top Box by the described video data bag adding encryption identification.
In device provided in an embodiment of the present invention, have before sending video flowing to Set Top Box, according to key to video counts
It is encrypted according to the video content field in bag, wherein, described video flowing is made up of video data bag at least one described；?
Add encryption identification in the packet header of described video data bag；And the described video data bag adding encryption identification is sent
To the function of described Set Top Box, before may be implemented in server end transmission video flowing, the video content play is encrypted, and leads to
Cross interpolation encryption identification representing whether this video content is encrypted, thus can while ensureing video content safety,
Tell the set-top box video content encryption of the user side receiving this video content, be easy to Set Top Box and play in video content
Before be decrypted, improve video content safety it is ensured that user watch video good experience.
Optionally, this device also includes：
Setup module, for arranging encryption indication field, described encryption indication field in the packet header of described video data bag
For indicating whether described video data bag encrypts.
Optionally, described add module, specifically for the encryption indication field arranging in the packet header of described video data bag
Middle interpolation encryption identification.
Optionally, this device also includes：Time block, for regularly replacing described key and periodically sending out described key
Deliver to described Set Top Box.
In device provided in an embodiment of the present invention, there is periodic replacement and add to the key that video content is encrypted, with
And the technological means that key is periodically sent to Set Top Box to improve the safety of video content, ensure in the video of encryption simultaneously
Appearance can correctly be deciphered.
Based on same inventive concept, embodiment of the present invention continuation offer is a kind of to realize the system that video flowing securely transmits,
Including server and Set Top Box；
Described server includes realizing, described in any of the above one, the device that video flowing securely transmits；
Described Set Top Box, is used for receiving described video data bag, and the encryption identification in reading described packet header
Afterwards, the video content field in described video data bag is decrypted.
In system provided in an embodiment of the present invention, server to Set Top Box send video flowing before, according to key to video
Video content field in packet is encrypted, and wherein, described video flowing is made up of video data bag at least one described；
Add encryption identification in the packet header of described video data bag；And the described video data bag adding encryption identification is sent out
Deliver to the function of described Set Top Box, Set Top Box after receiving this video data bag, according to the video content reading whether
Encryption identification, is decrypted to video content, before may be implemented in server end transmission video flowing, the video content play is carried out
Encryption, and represent whether this video content is encrypted by adding encryption identification, thus can ensure video content safety
While property, tell the set-top box video content encryption of the user side receiving this video content, be easy to Set Top Box and regarding
Frequency content is decrypted before playing, and improves the safety of video content it is ensured that user watches the good experience of video.
Other features and advantages of the present invention will illustrate in the following description, and, partly become from description
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
In book, claims and accompanying drawing, specifically noted structure is realizing and to obtain.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for description, the reality with the present invention
Apply example and be used for explaining the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart realizing the method that video flowing securely transmits providing in the embodiment of the present invention one；
Fig. 2 is a kind of flow chart realizing the method that video flowing securely transmits providing in the embodiment of the present invention two；
Fig. 3 is a kind of structural representation realizing the device that video flowing securely transmits providing in the embodiment of the present invention three.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment one
Embodiment of the present invention offer is a kind of to realize the method that video flowing securely transmits, and the method is suitable for being deployed in network side,
As server is first-class.As shown in figure 1, the method includes：
101, server to Set Top Box send video flowing before, according to key to the video content field in video data bag
It is encrypted, wherein, described video flowing is made up of video data bag at least one described；
Video flowing is made up of video data bag one by one, in each video data bag in addition to video content, also wraps
Include some other contents, and in the method that the present embodiment adopts, only the video content in video data bag is encrypted, can
To reduce encryption times, can prevent disabled user from receiving illegal viewing video content after video flowing it is ensured that video flowing simultaneously
Safety technique effect.
102, server adds encryption identification in the packet header of described video data bag；
Optionally, this 102 can by the packet header of described video data bag arrange encryption indication field realize, wherein,
Described encryption indication field is used for indicating whether described video data bag encrypts.
In method provided in an embodiment of the present invention, realize notice machine by increasing encryption indication field in packet header
Whether this video content of top box is encrypted, facilitates Set Top Box to be deciphered in time for the video content encrypted, it is to avoid in video
Rong Yin encryption cannot play the impact user viewing video content experience leading to.
103, the described video data bag adding encryption identification is sent to described Set Top Box by server.
In method provided in an embodiment of the present invention, by using server to Set Top Box send video flowing before, according to close
Key is encrypted to the video content field in video data bag, and wherein, described video flowing is by video counts at least one described
According to bag composition；Add encryption identification in the packet header of described video data bag；And regarding described interpolation encryption identification
Frequency packet is sent to the technological means of described Set Top Box, realizes before server end sends video flowing, in the video play
Appearance is encrypted, and represents whether this video content is encrypted by adding encryption identification, thus can be in guarantee video
While holding safety, tell the set-top box video content encryption of the user side receiving this video content, be easy to machine top
Box is decrypted before video content broadcasting, improves the safety of video content it is ensured that user watches the good experience of video.
Optionally, the method also includes：Described key is periodically sent to described Set Top Box by server.
Optionally, the method also includes：Server regularly replaces described key.
In method provided in an embodiment of the present invention, close by add to that video content is encrypted using periodic replacement
Key, and technological means key being periodically sent to Set Top Box to improve the safety of video content, ensure encryption simultaneously
Video content can correctly be deciphered.
Embodiment two
The embodiment of the present invention, specifically taking the scene of video server as a example, provides and a kind of realizes the side that video flowing securely transmits
Method, before the method execution, needs to arrange encryption indication field, wherein, described encryption indication field in the packet header of video data bag
For indicating whether described video data bag encrypts.As shown in Fig. 2 the method includes：
200, the key encrypted for video content is sent to Set Top Box by video server；
The execution sequence of this step is not limited to this, can be in the arbitrary process before Set Top Box is decrypted to video content
Receive this key, i.e. 204 either step execution before.
201, video server to Set Top Box send video flowing before, according to key to the video content in video data bag
Field is encrypted, and wherein, described video flowing is made up of video data bag at least one described；
Video flowing is made up of video data bag one by one, in each video data bag in addition to video content, also wraps
Include some other contents, and in the method that the present embodiment adopts, only the video content in video data bag is encrypted, can
To reduce encryption times, can prevent disabled user from receiving illegal viewing video content after video flowing it is ensured that video flowing simultaneously
Safety technique effect.
202, video server adds in the encryption indication field that the packet header of described video data bag is arranged encrypts mark
Know.
If not being encrypted to video content in 201, unencryption mark can be added in 202, or to be represented not with default
Encryption etc..
In method provided in an embodiment of the present invention, realize notice machine by increasing encryption indication field in packet header
Whether this video content of top box is encrypted, facilitates Set Top Box to be deciphered in time for the video content encrypted, it is to avoid in video
Rong Yin encryption cannot play the impact user viewing video content experience leading to.
203, the described video data bag adding encryption identification is sent to described Set Top Box by video server.
In method provided in an embodiment of the present invention, by using server to Set Top Box send video flowing before, according to close
Key is encrypted to the video content field in video data bag, and wherein, described video flowing is by video counts at least one described
According to bag composition；Add encryption identification in the packet header of described video data bag；And regarding described interpolation encryption identification
Frequency packet is sent to the technological means of described Set Top Box, realizes before server end sends video flowing, in the video play
Appearance is encrypted, and represents whether this video content is encrypted by adding encryption identification, thus can be in guarantee video
While holding safety, tell the set-top box video content encryption of the user side receiving this video content, be easy to machine top
Box is decrypted before video content broadcasting, improves the safety of video content it is ensured that user watches the good experience of video.
204, after Set Top Box receives this video data bag, and the encryption identification in reading described packet header, according to
201 keys receiving are decrypted to the video content field in described video data bag.
205, the key in video server periodic replacement 201, and this key is periodically sent to described Set Top Box.
In method provided in an embodiment of the present invention, close by add to that video content is encrypted using periodic replacement
Key, and technological means key being periodically sent to Set Top Box to improve the safety of video content, ensure encryption simultaneously
Video content can correctly be deciphered.
Video flowing is made up of packet one by one, in the method for the embodiment of the present invention, increases in the packet header of each packet
Plus a field, this field indicates whether whether the video content components in packet are encrypted.Server is needing to machine top
When box sends packet, the video content components of packet are encrypted, and add field.And, server regularly replaces
The key of encryption, and periodically the key of encryption is sent to Set Top Box.Set Top Box uses the key receiving to video content components
It is decrypted, and then realize preventing video flowing to be stolen it is ensured that the safety of video flowing and validated user watch the authority of video.
Embodiment three
Realize for the ease of the method on server in above-described embodiment one, two, the embodiment of the present invention continues to provide one kind
Realize the device that video flowing securely transmits, as shown in figure 3, including：
Encrypting module 31, for server before sending video flowing to Set Top Box, according to key in video data bag
Video content field is encrypted, and wherein, described video flowing is made up of video data bag at least one described；
Add module 32, for adding encryption identification in the packet header of described video data bag；
Sending module 33, for being sent to described Set Top Box by the described video data bag adding encryption identification.
In device provided in an embodiment of the present invention, have before sending video flowing to Set Top Box, according to key to video counts
It is encrypted according to the video content field in bag, wherein, described video flowing is made up of video data bag at least one described；?
Add encryption identification in the packet header of described video data bag；And the described video data bag adding encryption identification is sent
To the function of described Set Top Box, before may be implemented in server end transmission video flowing, the video content play is encrypted, and leads to
Cross interpolation encryption identification representing whether this video content is encrypted, thus can while ensureing video content safety,
Tell the set-top box video content encryption of the user side receiving this video content, be easy to Set Top Box and play in video content
Before be decrypted, improve video content safety it is ensured that user watch video good experience.
Optionally, this device also includes：
Setup module, for arranging encryption indication field, described encryption indication field in the packet header of described video data bag
For indicating whether described video data bag encrypts.
Optionally, described 32 pieces of mould of interpolation, specifically for the encryption instruction word arranging in the packet header of described video data bag
Add encryption identification in section.
Optionally, this device also includes：Time block, for regularly replacing described key and periodically sending out described key
Deliver to described Set Top Box.
In device provided in an embodiment of the present invention, there is periodic replacement and add to the key that video content is encrypted, with
And the technological means that key is periodically sent to Set Top Box to improve the safety of video content, ensure in the video of encryption simultaneously
Appearance can correctly be deciphered.
In device provided in an embodiment of the present invention, have before sending video flowing to Set Top Box, according to key to video counts
It is encrypted according to the video content field in bag, wherein, described video flowing is made up of video data bag at least one described；?
Add encryption identification in the packet header of described video data bag；And the described video data bag adding encryption identification is sent
To the function of described Set Top Box, before may be implemented in server end transmission video flowing, the video content play is encrypted, and leads to
Cross interpolation encryption identification representing whether this video content is encrypted, thus can while ensureing video content safety,
Tell the set-top box video content encryption of the user side receiving this video content, be easy to Set Top Box and play in video content
Before be decrypted, improve video content safety it is ensured that user watch video good experience.
Example IV
Embodiment of the present invention continuation offer is a kind of to realize the system that video flowing securely transmits, including server and Set Top Box；
Described server includes realizing, described in three kinds of embodiment, the device that video flowing securely transmits；
Described Set Top Box, is used for receiving described video data bag, and the encryption identification in reading described packet header
Afterwards, the video content field in described video data bag is decrypted.
In system provided in an embodiment of the present invention, server to Set Top Box send video flowing before, according to key to video
Video content field in packet is encrypted, and wherein, described video flowing is made up of video data bag at least one described；
Add encryption identification in the packet header of described video data bag；And the described video data bag adding encryption identification is sent out
Deliver to the function of described Set Top Box, Set Top Box after receiving this video data bag, according to the video content reading whether
Encryption identification, is decrypted to video content, before may be implemented in server end transmission video flowing, the video content play is carried out
Encryption, and represent whether this video content is encrypted by adding encryption identification, thus can ensure video content safety
While property, tell the set-top box video content encryption of the user side receiving this video content, be easy to Set Top Box and regarding
Frequency content is decrypted before playing, and improves the safety of video content it is ensured that user watches the good experience of video.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or the reality combining software and hardware aspect
Apply the form of example.And, the present invention can be using in one or more computers wherein including computer usable program code
The shape of the upper computer program implemented of usable storage medium (including but not limited to disk memory and optical memory etc.)
Formula.
The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program
Figure and/or block diagram are describing.It should be understood that can be by each stream in computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor instructing general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device is to produce
A raw machine is so that produced for reality by the instruction of computer or the computing device of other programmable data processing device
The device of the function of specifying in present one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device with spy
Determine in the computer-readable memory that mode works so that the instruction generation inclusion being stored in this computer-readable memory refers to
Make the manufacture of device, this command device realize in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that counting
On calculation machine or other programmable devices, execution series of operation steps to be to produce computer implemented process, thus in computer or
On other programmable devices, the instruction of execution is provided for realizing in one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function of specifying in individual square frame or multiple square frame.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (10)
1. a kind of realize method that video flowing securely transmits it is characterised in that including：
Server, before sending video flowing to Set Top Box, carries out to the video content field in video data bag adding according to key
Close, wherein, described video flowing is made up of video data bag at least one described；
Server adds encryption identification in the packet header of described video data bag；
The described video data bag adding encryption identification is sent to described Set Top Box by server.
2. method according to claim 1 is it is characterised in that the method also includes：The packet header of described video data bag sets
It is equipped with encryption indication field, described encryption indication field is used for indicating whether described video data bag encrypts.
3. method according to claim 2 is it is characterised in that described server adds in the packet header of described video data bag
Plus encryption identification includes：
Server adds encryption identification in the encryption indication field that the packet header of described video data bag is arranged.
4. the method according to any one in claim 1-3 is it is characterised in that the method also includes：
Described key is periodically sent to described Set Top Box by server.
5. the method according to any one in claim 1-3 is it is characterised in that the method also includes：
Server regularly replaces described key.
6. a kind of realize device that video flowing securely transmits it is characterised in that including：
Encrypting module, for server before sending video flowing to Set Top Box, according to key in the video in video data bag
Hold field to be encrypted, wherein, described video flowing is made up of video data bag at least one described；
Add module, for adding encryption identification in the packet header of described video data bag；
Sending module, for being sent to described Set Top Box by the described video data bag adding encryption identification.
7. device according to claim 6 is it is characterised in that this device also includes：
Setup module, for arranging encryption indication field in the packet header of described video data bag, described encryption indication field is used for
Indicate whether described video data bag encrypts.
8. device according to claim 7 it is characterised in that
Described add module, encrypts specifically for adding in the encryption indication field that the packet header of described video data bag is arranged
Mark.
9. the device according to any one in claim 6-8 is it is characterised in that this device also includes：
Time block, for regularly replacing described key and periodically sending the key to described Set Top Box.
10. a kind of realize system that video flowing securely transmits it is characterised in that including server and Set Top Box；
Described server includes realizing, as described in any one in claim 6-9, the device that video flowing securely transmits；
Described Set Top Box, after being used for receiving described video data bag, and the encryption identification in reading described packet header, right
Video content field in described video data bag is decrypted.
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| CN201610918020.6A CN106454408A (en) | 2016-10-20 | 2016-10-20 | Method, device and system for realizing safe transmission of video streams |
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| CN201610918020.6A CN106454408A (en) | 2016-10-20 | 2016-10-20 | Method, device and system for realizing safe transmission of video streams |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109005450A (en) * | 2018-07-16 | 2018-12-14 | 广州辉群智能科技有限公司 | A kind of broadcast controlling method and device of broadcasting equipment |
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| CN109005450B (en) * | 2018-07-16 | 2021-05-18 | 广州辉群智能科技有限公司 | Broadcast control method and device of broadcast equipment |
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