CN111385605A - Control method, system and related equipment for digital television signal encryption transmission - Google Patents
Control method, system and related equipment for digital television signal encryption transmission Download PDFInfo
- Publication number
- CN111385605A CN111385605A CN201811639593.0A CN201811639593A CN111385605A CN 111385605 A CN111385605 A CN 111385605A CN 201811639593 A CN201811639593 A CN 201811639593A CN 111385605 A CN111385605 A CN 111385605A
- Authority
- CN
- China
- Prior art keywords
- digital television
- program
- program source
- encrypted
- pseudorandom sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 42
- 238000004590 computer program Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
-
- 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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
-
- 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
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a control method, a system and related equipment for encrypting and transmitting digital television signals, which comprises the steps of receiving request information for acquiring television program resources sent by a built-in communication module of a digital television, and judging whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information; if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television; and the digital television decrypts the encrypted program source according to the pseudorandom sequence and plays the program information contained in the program source. According to the method and the system disclosed by the invention, the communication module is arranged in the television, the communication module realizes the movable transmission of the digital television program resource, and the SIM card corresponding to the communication module is used for generating the pseudo-random sequence to encrypt the program source, so that the security of program signal encryption and decryption is improved.
Description
Technical Field
The present invention relates to the field of display control technologies, and in particular, to a method, a system, an apparatus, and a storage medium for controlling encrypted transmission of digital television signals.
Background
At present, the traditional coaxial cable transmission and smart card encryption and decryption are mostly adopted for household digital television programs. With the development of the mobile internet technology, especially the coming of the 5G era, another revolution of the digital television watching mode will be brought.
Meanwhile, the traditional mode shows more obvious disadvantages: firstly, the television has poor mobility, cannot be separated from the coaxial line, and is difficult to popularize in remote mountain areas; secondly, the coaxial cable line is high in laying cost, long in service life and poor in later maintenance and upgrading performance; thirdly, the investment of the transmission equipment and the encryption equipment at the current end of the television section is large; fourth, the traditional television uses tuner frequency locking, smart card, large card slot, and the hardware cost is high. Therefore, the traditional digital television transmission mode and encryption method based on coaxial cable can not meet the requirements of users.
Therefore, the prior art is subject to further improvement.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a method, a system, a device and a storage medium for controlling encrypted transmission of digital television signals, which overcome the defects in the prior art that the digital television has poor mobility and high cost due to the coaxial line-based signal transmission, and the security performance is poor due to the fact that the program source is encrypted only by a smart card.
The first embodiment provided by the present invention is a method for controlling encrypted transmission of digital television signals, wherein the method is applied to a front-end server, and the encryption algorithm includes:
receiving request information for acquiring television program resources sent by a built-in communication module of the digital television, and judging whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information;
if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television; and the digital television plays the program information contained in the program source after decrypting the encrypted program source according to the pseudorandom sequence.
Optionally, the method further includes:
and acquiring SIM card information built in the digital television, and generating a pseudorandom sequence to encrypt the program source according to the SIM card information to obtain an encrypted program source.
A second embodiment of the present invention is a method for controlling encrypted transmission of digital television signals, wherein the method is applied to a digital television, and the encryption method includes:
sending request information for acquiring television program resources to a front-end server establishing connection through a built-in communication module;
the request information includes: device identification information of the digital television; so that the front-end server judges whether the digital television has the authentication or not according to the equipment identification information;
and receiving the encrypted program source and the pseudorandom sequence returned by the front-end server, decrypting the encrypted program source according to the pseudorandom sequence, and playing the program.
Optionally, the step of decrypting the encrypted program source according to the pseudorandom sequence includes:
descrambling the encrypted program source according to the pseudorandom sequence;
and sending the descrambled program source to a decoder for decoding.
A third embodiment provided by the present invention is a method for controlling encrypted transmission of digital television signals, wherein the method comprises:
the digital television sends request information for acquiring television program resources to a front-end server which establishes connection through a built-in communication module;
the method comprises the steps that a front-end server receives request information for acquiring television program resources sent by a built-in communication module of the digital television, and judges whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information; if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television;
and the digital television decrypts the encrypted program source according to the pseudorandom sequence and plays the program information contained in the program source.
A fourth embodiment of the present invention is an encryption system for digital television signals, comprising: a front-end server and a digital television;
the front-end server includes: the authentication judging module and the program source sending module;
the authentication judgment module is used for receiving request information for acquiring television program resources sent by a built-in communication module of the digital television and judging whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information;
the program source sending module is used for transmitting the encrypted program source and the pseudorandom sequence to the digital television when the digital television is judged to have the authentication;
the digital television includes: the system comprises a communication module, a decryption module and a program playing module;
the communication module is used for establishing connection with the front-end server and sending request information for acquiring television program resources to the front-end server;
the decryption module is used for decrypting the encrypted program source according to the obtained pseudorandom sequence;
the program playing module is used for playing the decrypted program source
Optionally, the front-end server further includes: an encryption module;
the encryption module is used for acquiring SIM card information built in the digital television, and generating a pseudorandom sequence according to the SIM card information to encrypt the program source to obtain an encrypted program source.
Optionally, the decryption module includes: a descrambling unit and a decoding unit;
the descrambling unit is used for descrambling the encrypted program source according to the pseudorandom sequence;
and the decoding unit is used for sending the descrambled program source to a decoder for decoding.
A fifth embodiment provided by the present invention is a television terminal, including: a memory storing a computer program and a processor, wherein the steps of the method are implemented when the computer program is executed by the processor.
A sixth embodiment of the present invention is a storage medium, wherein an encryption control program of a digital television signal is stored on the storage medium, and when being executed by a processor, the encryption control program of the digital television signal implements the steps of the control method for encrypting and transmitting the digital television signal.
The invention has the beneficial effects that the invention provides a control method, a system and related equipment for encrypting and transmitting digital television signals, which are characterized in that request information for acquiring television program resources sent by a built-in communication module of a digital television is received, and whether the sent digital television has authentication is judged according to a digital television equipment identifier contained in the request information; if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television; and the digital television decrypts the encrypted program source according to the pseudorandom sequence and plays the program information contained in the program source. According to the method and the system disclosed by the invention, the communication module is arranged in the television, the communication module realizes the movable transmission of the digital television program resources, and meanwhile, the SIM card corresponding to the communication module is used for generating the pseudo-random sequence to encrypt the program source, so that the encryption and decryption safety is improved.
Drawings
Fig. 1 is a flowchart of the steps of a first embodiment of the method for controlling encrypted transmission of digital television signals according to the present invention;
FIG. 2 is a schematic diagram of a communication connection in an embodiment of the method of the present invention;
fig. 3 is a flowchart illustrating the steps of a second embodiment of the method for controlling encrypted transmission of digital television signals according to the present invention;
fig. 4 is a flowchart illustrating the steps of a third embodiment of the method for controlling the encrypted transmission of digital television signals according to the present invention;
fig. 5 is a block diagram of the schematic structure of the system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A first embodiment of the present invention is a method for controlling encrypted transmission of digital television signals, as shown in fig. 1, applied to a front-end server, where the encryption algorithm includes:
step S11, receiving request information for obtaining TV program resource sent by built-in communication module of digital TV, and judging whether the sent digital TV possesses authority according to the ID of digital TV device contained in the request information.
In order to realize the step, firstly, a communication module is installed in the digital television, and communication connection with the front-end server is established through the communication module, so that the digital television sends request information for acquiring television program resources to the front-end server by utilizing the communication module. Specifically, the request information includes not only the program resource to be acquired, but also the device identifier of the digital television, such as: ID. Card number, password, SN, MAC and other information of the SIM card.
And after receiving the request information, the front-end server identifies the equipment identification information contained in the request information, performs authentication judgment on the equipment identification information, judges whether the digital television has the authority to acquire the corresponding program resource, and if so, executes the next step, otherwise, sends information of request failure to the digital television terminal.
Step S12, if the digital TV possesses the authentication, the encrypted program source and the pseudo random sequence are transmitted to the digital TV; and the digital television plays the program information contained in the program source after decrypting the encrypted program source according to the pseudorandom sequence.
If the digital television which sends the request application is detected to have the authentication for acquiring the corresponding program resource in the steps, the encrypted program source and the pseudorandom sequence used for encrypting the program source are simultaneously sent to the digital television. The digital television decrypts the encrypted program source according to the received pseudorandom sequence, and plays the program information contained in the program source after decoding by using a decoder.
Further, as shown in fig. 2, the front-end server is an internet front-end server deployed by relying on a plurality of signal base station networks of a mobile operator, and issues rich and diverse digital television program resources. Because the 5G communication network is used between the front-end server and the digital television, the high efficiency and the real-time performance of the digital television program transmission are ensured based on the high speed and the high bandwidth of the 5G network.
The 5G communication module of the SIM card is embedded in the digital television, and the television can access the mobile internet at a high speed through the module, so that the problem of poor mobility of the traditional digital television is solved.
Furthermore, the encryption and decryption method provided by the invention has the advantages that the front-end server generates the pseudo-random sequence CW by using the SIM card number and the password to carry out real-time scrambling and issuing on the program source; the digital television terminal requests program resources to a front-end server through the mobile internet, and the server authenticates the user according to SN, MAC, card number and password carried by the network request information, namely, judges whether the user is legal and purchases corresponding services. If yes, pushing an encrypted program source and a pseudo-random sequence CW to a user, setting the CW to a descrambler after the terminal receives the CW, sending program data to a decoder for decoding and displaying after the program data is descrambled by the descrambler, and finishing the whole decryption process; if not, prompting the encrypted program user not to purchase the service, thereby perfectly replacing the traditional smart card encryption and decryption mode.
Specifically, in the process that the front-end server generates the pseudorandom sequence according to the SIM card number and the password to scramble the transmission program, the encryption algorithm used in the process may be an algorithm commonly used in the prior art.
Example 2
A second embodiment of the present invention is a method for controlling encrypted transmission of digital television signals, as shown in fig. 3, applied to a digital television, where the encryption method includes:
and step S31, sending request information for acquiring television program resources to the front-end server establishing the connection through the built-in communication module.
The request information includes: device identification information of the digital television; so that the front-end server judges whether the digital television has the authentication or not according to the equipment identification information.
And step S32, receiving the encrypted program source and the pseudorandom sequence returned by the front-end server, decrypting the encrypted program source according to the pseudorandom sequence, and playing the program.
Further, the step of decrypting the encrypted program source according to the pseudorandom sequence in this step includes:
descrambling the encrypted program source according to the pseudorandom sequence;
and sending the descrambled program source to a decoder for decoding.
The digital television can input the received encrypted program source and the pseudorandom sequence into a descrambler for descrambling, input the descrambled program source into a decoder for decoding, and finally play the decoded program information.
A third embodiment of the present invention is a method for controlling encrypted transmission of digital television signals, as shown in fig. 4, including:
and step S41, the digital television sends request information for acquiring television program resources to the front-end server which establishes the connection through the built-in communication module.
Step S42, the front end server receives the request information for obtaining TV program resource sent by the built-in communication module of the digital TV, and judges whether the sent digital TV has the authentication or not according to the digital TV equipment identification contained in the request information; and if so, transmitting the encrypted program source and the pseudorandom sequence to the digital television.
And step S43, the digital television decrypts the encrypted program source according to the pseudo-random sequence and plays the program information contained in the program source.
Example 4
A fourth embodiment of the present invention is an encryption system for digital television signals, as shown in fig. 5, including: a front-end server 51 and a digital television 52;
the front-end server includes: an authentication judgment module 511 and a program source sending module 512;
the authentication judging module 511 is configured to receive request information for acquiring television program resources sent by a built-in communication module of the digital television 52, and judge whether the sent digital television has authentication according to a digital television device identifier included in the request information;
the program source sending module is used for transmitting the encrypted program source and the pseudorandom sequence to the digital television when the digital television is judged to have the authentication;
the digital television 52 includes: a communication module 521, a decryption module 522, and a program playing module 523;
the communication module 521 is configured to establish a connection with the front-end server, and send request information for acquiring television program resources to the front-end server;
the decryption module 522 is configured to decrypt the encrypted program source according to the obtained pseudorandom sequence;
the program playing module 523 is configured to play the decrypted program source
Optionally, the front-end server further includes: an encryption module;
the encryption module is used for acquiring SIM card information built in the digital television, and generating a pseudorandom sequence according to the SIM card information to encrypt the program source to obtain an encrypted program source.
Optionally, the decryption module includes: a descrambling unit and a decoding unit;
the descrambling unit is used for descrambling the encrypted program source according to the pseudorandom sequence;
and the decoding unit is used for sending the descrambled program source to a decoder for decoding.
Example 5
A fifth embodiment provided by the present invention is a television terminal, including: a memory storing a computer program and a processor, wherein the steps of the method are implemented when the computer program is executed by the processor.
Example 6
A sixth embodiment of the present invention is a storage medium, wherein an encryption control program of a digital television signal is stored on the storage medium, and when being executed by a processor, the encryption control program of the digital television signal implements the steps of the control method for encrypting and transmitting the digital television signal.
The storage medium may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data used or received by the industrial equipment management method, and the like. Further, the storage medium may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
The computer equipment can execute the method provided by the embodiment of the invention, and has corresponding functional modules for executing the method and corresponding beneficial effects. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
The invention has the advantages that the invention provides a control method, a system, a device and a storage medium for digital television signal encryption transmission, which can judge whether a digital television has authentication or not according to a digital television device identifier contained in request information by receiving the request information for acquiring television program resources sent by a built-in communication module of the digital television; if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television; and the digital television decrypts the encrypted program source according to the pseudorandom sequence and plays the program information contained in the program source. According to the method and the system disclosed by the invention, the communication module is arranged in the television, the communication module realizes the movable transmission of the digital television program resources, and meanwhile, the SIM card corresponding to the communication module is used for generating the pseudo-random sequence to encrypt the program source, so that the encryption and decryption safety is improved.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. A control method for digital television signal encryption transmission is characterized in that the control method is applied to a front-end server, and the encryption algorithm comprises the following steps:
receiving request information for acquiring television program resources sent by a built-in communication module of the digital television, and judging whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information;
if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television; and the digital television plays the program information contained in the program source after decrypting the encrypted program source according to the pseudorandom sequence.
2. The method for controlling encrypted transmission of digital television signals according to claim 1, further comprising:
and acquiring SIM card information of a built-in communication module of the digital television, and generating a pseudorandom sequence to encrypt the program source according to the SIM card information to obtain an encrypted program source.
3. A control method for encrypted transmission of digital television signals is applied to a digital television, and the encryption method comprises the following steps:
sending request information for acquiring television program resources to a front-end server establishing connection through a built-in communication module;
the request information includes: device identification information of the digital television; so that the front-end server judges whether the digital television has the authentication or not according to the equipment identification information;
and receiving the encrypted program source and the pseudorandom sequence returned by the front-end server, decrypting the encrypted program source according to the pseudorandom sequence, and playing the program.
4. The method of claim 3, wherein the step of decrypting the encrypted program source according to the pseudorandom sequence comprises:
descrambling the encrypted program source according to the pseudorandom sequence;
and sending the descrambled program source to a decoder for decoding.
5. A method for controlling encrypted transmission of digital television signals, comprising:
the digital television sends request information for acquiring television program resources to a front-end server which establishes connection through a built-in communication module;
the method comprises the steps that a front-end server receives request information for acquiring television program resources sent by a built-in communication module of the digital television, and judges whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information; if yes, transmitting the encrypted program source and the pseudorandom sequence to the digital television;
and the digital television decrypts the encrypted program source according to the pseudorandom sequence and plays the program information contained in the program source.
6. A system for encrypting a digital television signal, comprising: a front-end server and a digital television;
the front-end server includes: the authentication judging module and the program source sending module;
the authentication judgment module is used for receiving request information for acquiring television program resources sent by a built-in communication module of the digital television and judging whether the sent digital television has authentication or not according to a digital television equipment identifier contained in the request information;
the program source sending module is used for transmitting the encrypted program source and the pseudorandom sequence to the digital television when the digital television is judged to have the authentication;
the digital television includes: the system comprises a communication module, a decryption module and a program playing module;
the communication module is used for establishing connection with the front-end server and sending request information for acquiring television program resources to the front-end server;
the decryption module is used for decrypting the encrypted program source according to the obtained pseudorandom sequence;
and the program playing module is used for playing the decrypted program source.
7. The system for encrypting a digital television signal according to claim 6, wherein the front-end server further comprises: an encryption module;
and the encryption module is used for acquiring SIM card information of a built-in communication module of the digital television, and generating a pseudorandom sequence according to the SIM card information to encrypt the program source to obtain an encrypted program source.
8. The system for encrypting a digital television signal according to claim 6, wherein the decryption module comprises: a descrambling unit and a decoding unit;
the descrambling unit is used for descrambling the encrypted program source according to the pseudorandom sequence;
and the decoding unit is used for sending the descrambled program source to a decoder for decoding.
9. A television terminal, comprising: a memory storing a computer program and a processor implementing the steps of the method of controlling encrypted transmission of digital television signals according to claim 3 or 4 when executing the computer program.
10. A storage medium having stored thereon an encryption control program for a digital television signal, the encryption control program for a digital television signal when executed by a processor implementing the steps of the method for controlling encrypted transmission of a digital television signal according to claim 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639593.0A CN111385605A (en) | 2018-12-29 | 2018-12-29 | Control method, system and related equipment for digital television signal encryption transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639593.0A CN111385605A (en) | 2018-12-29 | 2018-12-29 | Control method, system and related equipment for digital television signal encryption transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111385605A true CN111385605A (en) | 2020-07-07 |
Family
ID=71218181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811639593.0A Pending CN111385605A (en) | 2018-12-29 | 2018-12-29 | Control method, system and related equipment for digital television signal encryption transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111385605A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112637650A (en) * | 2021-01-04 | 2021-04-09 | 国微集团(深圳)有限公司 | Condition receiving module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812551A (en) * | 2005-12-23 | 2006-08-02 | 姚庆 | Mobile media system |
| KR20100012078A (en) * | 2008-07-28 | 2010-02-05 | 에스케이 텔레콤주식회사 | Method and system for billing an using fee about intelligent contents |
| CN103596050A (en) * | 2013-02-08 | 2014-02-19 | 山东泰信电子股份有限公司 | Digital television signal reception system and reception method thereof |
| CN103634624A (en) * | 2013-11-15 | 2014-03-12 | 四川长虹电器股份有限公司 | Digital television live broadcasting method and system based on IP (Internet protocol) network |
| CN104104996A (en) * | 2013-04-03 | 2014-10-15 | ***通信集团公司 | Program stream decryption method, device and terminal |
| CN104618738A (en) * | 2015-01-14 | 2015-05-13 | 青岛海信电器股份有限公司 | Method and device for playing programs of intelligent TV |
| CN208046807U (en) * | 2018-03-29 | 2018-11-02 | 王干 | It is a kind of based on 5G transmissions from energy storage television set |
-
2018
- 2018-12-29 CN CN201811639593.0A patent/CN111385605A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812551A (en) * | 2005-12-23 | 2006-08-02 | 姚庆 | Mobile media system |
| KR20100012078A (en) * | 2008-07-28 | 2010-02-05 | 에스케이 텔레콤주식회사 | Method and system for billing an using fee about intelligent contents |
| CN103596050A (en) * | 2013-02-08 | 2014-02-19 | 山东泰信电子股份有限公司 | Digital television signal reception system and reception method thereof |
| CN104104996A (en) * | 2013-04-03 | 2014-10-15 | ***通信集团公司 | Program stream decryption method, device and terminal |
| CN103634624A (en) * | 2013-11-15 | 2014-03-12 | 四川长虹电器股份有限公司 | Digital television live broadcasting method and system based on IP (Internet protocol) network |
| CN104618738A (en) * | 2015-01-14 | 2015-05-13 | 青岛海信电器股份有限公司 | Method and device for playing programs of intelligent TV |
| CN208046807U (en) * | 2018-03-29 | 2018-11-02 | 王干 | It is a kind of based on 5G transmissions from energy storage television set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112637650A (en) * | 2021-01-04 | 2021-04-09 | 国微集团(深圳)有限公司 | Condition receiving module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100936885B1 (en) | Method and apparatus for mutual authentification in downloadable conditional access system | |
| KR100957121B1 (en) | Key distribution method and authentication server | |
| US7769171B2 (en) | Method for transmitting digital data in a local network | |
| US20050050333A1 (en) | System and method for secure broadcast | |
| US9385997B2 (en) | Protection of control words employed by conditional access systems | |
| JP2010193449A (en) | Method of securely providing control word from smart card to conditional access module | |
| CN102196316B (en) | A method for controlling access to a plurality of channels by a receiver/decoder | |
| US9402108B2 (en) | Receiver software protection | |
| JP4666015B2 (en) | Content distribution system, content receiving terminal, and content distribution method | |
| US20120114121A1 (en) | Method of transmitting and receiving content | |
| CN103535044A (en) | Method of protecting a recorded multimedia content | |
| US10970367B2 (en) | Strong authentication of client set-top boxes | |
| CN104735484A (en) | Method and device for playing video | |
| CN103596050A (en) | Digital television signal reception system and reception method thereof | |
| WO2012072772A1 (en) | System and method to record encrypted content with access conditions | |
| CN102714593A (en) | Methods for decrypting, transmitting and receiving control words, storage medium for executing said methods | |
| CN100547955C (en) | A kind of method of protecting mobile multimedia service, system and equipment | |
| KR100801286B1 (en) | Broadcast transmitting system and broadcast receiving apparatus | |
| CN111385605A (en) | Control method, system and related equipment for digital television signal encryption transmission | |
| KR20100069373A (en) | Conditional access system and method exchanging randon value | |
| CN101917671B (en) | Method for managing authentication parameters and terminal | |
| US8369524B2 (en) | Simplified method for renewing symmetrical keys in a digital network | |
| EP2244415B1 (en) | Downloadable conditional access system server, digital multimedia broadcasting terminal, and method of providing downloadable conditional access system service | |
| CN112769783B (en) | Data transmission method, cloud server, receiving end and sending end | |
| US20160165279A1 (en) | Method of transmitting messages between distributed authorization server and conditional access module authentication sub-system in renewable conditional access system, and renewable conditional access system headend |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200707 |