CN111385623A - CA card sharing method, system and storage medium - Google Patents
CA card sharing method, system and storage medium Download PDFInfo
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- CN111385623A CN111385623A CN201811627686.1A CN201811627686A CN111385623A CN 111385623 A CN111385623 A CN 111385623A CN 201811627686 A CN201811627686 A CN 201811627686A CN 111385623 A CN111385623 A CN 111385623A
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- server
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
- H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
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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
- H04N21/25—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
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2541—Rights Management
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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
- H04N21/25—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
- H04N21/26613—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 keys in general
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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
- H04N21/45—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]
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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]
- H04N21/60—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 CA card sharing method, a CA card sharing system and a storage medium, which are used for providing a solution for sharing CA cards among a plurality of digital television integrated machines in a family. The method comprises the steps that a digital television all-in-one machine using a CA card is set as a server, and other digital television all-in-one machines sharing the digital television all-in-one machine using the CA card are set as clients; the server monitors the connection of the client, receives the related information of the encrypted program sent by the client, decrypts the information, and authorizes a result and a secret key to the client; the client analyzes the encrypted program selected by the user, sends the related information of the encrypted program to the server, receives the authorization result and the key of the server, sets the key value to the descrambling module for descrambling, restores the original code stream, and decodes and plays the encrypted program according to the audio packet identifier and the video packet identifier. The sharing of one CA card and a plurality of digital television integrated machines is realized, and the watching expense is greatly saved for users.
Description
Technical Field
The invention relates to a digital television technology, in particular to a CA card sharing method, a CA card sharing system and a storage medium of a digital television all-in-one machine.
Background
With the development of digital television technology and network technology, digital televisions have gone into thousands of households, many families have multiple digital televisions, and television programs which can be watched are more colorful. However, in consideration of investment, profit, copyright, and other factors, the operator or operator of the digital tv program generally encrypts the broadcasted tv program. Therefore, when receiving the encrypted tv program, the user must use the tv program comprehensive receiving decoder authorized by the operator or the operator to decrypt and decode the watched program accordingly, and be charged a certain fee, i.e. conditional access to the digital tv program.
Therefore, in order to obtain the authorization of the encrypted program, the user must purchase a corresponding decryption card (CA card), but it is generally expensive to purchase a CA card of an operator, and for a home, if there are multiple digital television integrated machines and each digital television integrated machine wants to be able to watch the encrypted program, the CA card needs to be purchased for each digital television integrated machine, which is more costly.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention provides a CA card sharing method for solving the defects and shortcomings of the prior art, and the CA card sharing method is characterized in that a plurality of digital television all-in-one machines in a family are networked, the digital television all-in-one machine using the CA card is set as a Server (Server), other digital television all-in-one machines are set as clients (clients), the digital television all-in-one machine using the CA card (Server) transmits information of the CA card to other digital television all-in-one machines (clients) through a network, and the CA card sharing of all the digital television all-in-one machines in the family.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a CA card sharing solution comprises the following steps:
setting a digital television all-in-one machine using a CA card as a server, and sharing other digital television all-in-one machines using the CA card as clients;
the server monitors the connection of the client, receives the encrypted program related information sent by the client, and authorizes the result and the secret key to the client;
and the client sends the related information of the encrypted program to the server, receives the authorization result and the secret key of the server and processes the authorization result and the secret key.
As a further improved technical scheme, the digital television all-in-one machine using the CA card is set as a server in the above steps, and other digital television all-in-one machines sharing the CA card are set as clients, the server is connected with the clients through a network Socket to realize that the server shares CA card information to the clients, and the server is a host sharing a secret key.
As a further improved technical solution, in the above steps, the server monitors the connection of the client, receives the encrypted program related information sent by the client, and authorizes the result and the key to the client, the server receives the encrypted program related information sent by the client, where the encrypted program related information is authorization control information and authorization management information of the encrypted program, and the server processes the authorization control information and the authorization management information of the encrypted program and authorizes the result and the key to the client.
As a further improved technical scheme, in the above steps, the client sends authorization control information and authorization management information of the encrypted program to the server, receives an authorization result and a key returned by the server and performs processing, sets a key value to a descrambling module for descrambling, restores an original code stream, and performs decoding and playing according to an audio packet identifier and a video packet identifier.
As a further improved technical scheme, each digital television all-in-one machine can be used as a server or a client, and when the digital television all-in-one machine is used as the server, a menu is provided for a user to set, and an encryption sharing function is opened; when the server is used as a client, a menu is provided for a user to set the IP address of the server, and connection is established with the server.
As a further improved technical scheme, the digital television all-in-one machine can only be used as one working state of a server or a client, and a corresponding selection menu is arranged in the digital television all-in-one machine for a user to select and set.
A CA card sharing system is provided, wherein one of a plurality of digital television integrated machines is a server, and the other one is a client, and the system comprises a realization server module and a realization client module;
the realization server module is used for the server to monitor the connection of the client, receive the relevant information of the sent encrypted program sent by the client and authorize a result and a secret key to the client;
the implementation client module is used for the client to send the relevant information of the encrypted program to the server, receive the authorization result and the secret key of the server and process the authorization result and the secret key.
As a further improved technical scheme, each digital television all-in-one machine is simultaneously provided with a realization server module and a realization client module, and the realization server module is used as a server when running, provides a menu for a user to set and opens an encryption sharing function; when the client module is operated and realized, the client module is used as a client, provides a menu for a user to set the IP address of the server, and establishes connection with the server.
As a further improved technical scheme, in the above scheme, the digital television all-in-one machine can only be used as one working state of a server or a client, and a corresponding selection menu is set in the digital television all-in-one machine for a user to select and set.
The present invention also provides a storage medium storing a CA card sharing method program that, when executed by a processor, implements the steps of the CA card sharing method described above.
Compared with the prior art that each digital television all-in-one machine in a family needs to buy a CA card independently, the invention carries out networking on all the digital television all-in-one machines in the family, sets the digital television all-in-one machine using the CA card as a Server (Server), sets other digital television all-in-one machines as a Client (Client), and the Client (Client) is connected with the Server (Server) through a network Socket, thereby realizing the sharing of the information of the CA card, avoiding the user from buying the CA card independently for each digital television all-in-one machine and greatly saving the cost.
Drawings
The embodiments of the invention will be further described with reference to the accompanying drawings, in which:
fig. 1 is a flowchart of a CA card sharing method according to a preferred embodiment of the present invention.
Fig. 2 is a block diagram of a preferred embodiment of a CA card sharing system of the present invention.
FIG. 3 is a menu setup diagram of a user control module of the CA card sharing system according to the present invention.
Fig. 4 is an information processing flow chart of a CA card sharing method according to a preferred embodiment 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.
With the development of digital television technology and communication network technology, along with the improvement of the living standard of people, families with a plurality of digital television integrated machines are very common, and television program contents are rich and colorful. It is also common for the digital tv program operator to encrypt the broadcasted tv program for the reasons of investment, profit, and copyright. In order to watch programs, people need to purchase corresponding decryption cards (CA cards) and how many CA cards are needed to be purchased for how many digital television integrated machines are. While CA cards are generally expensive. Aiming at the situation, the invention realizes the sharing of the information of the CA card by networking all the digital television integrated machines of the family, setting the digital television integrated machine using the CA card as a Server (Server), setting other digital television integrated machines as clients (clients), and connecting the clients (clients) with the Server (Server) through network sockets, thereby avoiding that a user must purchase the CA card for each digital television integrated machine and greatly saving the expense for purchasing the CA card.
The present invention provides a CA card sharing method, as shown in fig. 1, which is a flow chart of a preferred embodiment of the CA card sharing method of the present invention, the preferred embodiment of the present invention includes the following steps:
step S100, setting a digital television all-in-one machine using a CA card as a Server (Server), and sharing other digital television all-in-one machines using the CA card as clients (clients);
specifically, in this embodiment, the Server (Server) is not a traditional Server, but is a host of a common key (CW: Control Word), and the Server (Server) and the Client (Client) are connected through a network Socket, so that the Server (Server) shares CA card information to the Client (Client).
Step S200, the Server monitors the connection of the Client (Client), receives the relevant information of the encrypted program sent by the Client (Client), and authorizes the result and the key to the Client (Client);
specifically, in this embodiment, the Server (Server) receives information related to the encrypted program sent by the Client (Client), where the information is Entitlement control information (ECM) and Entitlement Management information (EMM) of the encrypted program sent by the Client, and the decryption card (CA card) receives and decrypts the ECM and the EMM, and then authorizes the Client (Client) with the result and the key.
Step S300, the Client (Client) sends the relevant information of the encrypted program to the Server (Server), receives the authorization result and the secret key returned by the Server (Server), and carries out corresponding processing.
Specifically, in this embodiment, the Client (Client) locks a frequency point according to a Program selected by a user, searches a digital television Program Association Table (PAT), analyzes a Program Map Table (PMT) to obtain a Program Map Table flag code transmission packet-packet identifier value (PMT PID), searches a Conditional Access Table (CAT) and the Program Map Table (PMT), analyzes the Program Map Table (PMT) to obtain an authorization control information value (ECM PID), analyzes the Conditional Access Table (CAT) to obtain an authorization management information value (EMM PID), sends authorization control information and authorization management information to the Server (Server), receives an authorization result and a secret key (CW) returned by the Server (Server), sets the secret key value to a descrambling module (Descrambler), and restores an original code stream, decoding and playing are performed according to an audio Packet Identifier (PID) and a video Packet Identifier (PID). Fig. 4 is a flowchart of information processing of a CA card sharing method according to a preferred embodiment of the present invention.
In this embodiment, each digital tv all-in-one machine can be used as both a Server (Server) and a Client (Client), but each digital tv all-in-one machine can only be in one working state, i.e. either as the Server or the Client, and is provided with a corresponding selection menu, and a user can switch and select the digital tv all-in-one machine according to needs. If the Server is used, the menu is provided for the user to set, the encryption sharing function is opened, and if the Client is used, the menu is provided for the user to set the IP address of the Server, and the Server is connected. As shown in fig. 3, which is a menu setting diagram of a user control module of a CA card sharing system according to the present invention, the menu is divided into three levels, wherein the third level menu can be accessed only when the server option is closed in the second level menu option, that is, in the second level menu, when the server option is selected to be on, the third level menu is naturally closed as a customer service option.
Fig. 2 shows a structure diagram of a preferred embodiment of the CA card sharing system according to the present invention, where the system is configured with one of a plurality of digital television integrated machines as a server and the others as clients, and includes: an implementation server module 10 and an implementation client module 20.
The implementation server module 10 is configured to monitor the connection of the client by the server, receive authorization control information and authorization management information sent by the client and used for sending an encrypted program, and authorize a result and a key to the client.
Specifically, in this embodiment, after receiving the authorization control information and the authorization management information of the encrypted program at the customer service end, the server decrypts the encrypted program by using the CA card, and sends the key to the corresponding customer service end.
The implementation client module 20 is configured to send authorization control information and authorization management information of the encrypted program to the server, receive an authorization result and a key of the server, and perform related processing.
Specifically, in this embodiment, the client parses the authorization control information and the authorization management information of the encrypted program selected by the user, sends the authorization control information and the authorization management information to the server, the CA card decrypts the encrypted program after receiving the authorization control information and the authorization management information, returns the decrypted key to the customer service end, and the customer service end sets the key value to the descrambling module, restores the original code stream, and decodes and plays the encrypted key according to the audio packet identifier and the video packet identifier.
The detailed information processing flow is shown in fig. 4, which is the same as the processing flow of the CA card sharing method described above, and is not repeated herein.
In this embodiment, each digital television all-in-one machine is simultaneously provided with an implementation server module and an implementation client module. However, each digital television all-in-one machine can only be in one working state, that is, either the server module is operated to realize the use as the server or the client module is operated to realize the use as the client, so that a user control module is further installed in each digital television all-in-one machine to select the working state of the digital television all-in-one machine, and the working principle of the user control module menu setting diagram of the CA card sharing system of the invention is shown in fig. 3, which has been explained in the foregoing and is not described herein again. The operation realization server module is used as a server, provides a menu for a user to set, and opens an encryption sharing function; and monitoring the connection of the client, operating to realize the client module, using the client module as the client, providing a menu for a user to set the IP address of the server, and establishing connection with the server.
The present invention also provides a storage medium, which is a computer-readable storage medium, and the storage medium stores a CA card sharing method program, and the CA card sharing method program realizes the steps of the CA card sharing method described above when executed by a processor.
It should be understood that the above-mentioned embodiments are merely preferred examples of the present invention, and not restrictive, but rather, all the changes, substitutions, alterations and modifications that come within the spirit and scope of the invention as described above may be made by those skilled in the art, and all the changes, substitutions, alterations and modifications that fall within the scope of the appended claims should be construed as being included in the present invention.
Claims (10)
1. A CA card sharing method is characterized by comprising the following steps:
setting a digital television all-in-one machine using a CA card as a server, and sharing other digital television all-in-one machines using the CA card as clients;
the server monitors the connection of the client, receives the encrypted program related information sent by the client, and authorizes the result and the secret key to the client;
and the client sends the related information of the encrypted program to the server, receives the authorization result and the secret key returned by the server and processes the authorization result and the secret key.
2. The CA card sharing method according to claim 1, wherein the server is connected to the client via a network Socket to enable the server to share CA card information to the client, and the server is a host for sharing a key.
3. The CA card sharing method according to claim 1, wherein the server receives the encrypted program related information sent by the client, the encrypted program related information is authorization control information and authorization management information of the encrypted program, and the server processes the authorization control information and the authorization management information of the encrypted program and authorizes the result and the key to the client.
4. The CA card sharing method of claim 3, wherein the client sends authorization control information and authorization management information of encrypted programs to the server, receives authorization results and keys returned by the server, sets key values to a descrambling module for descrambling, restores original code streams, and decodes and plays the original code streams according to the audio packet identifier and the video packet identifier.
5. A CA card sharing method as claimed in any one of claims 1 to 4, wherein each digital television all-in-one machine can be used as a server or a client, and when being used as a server, a menu is provided for a user to set, and the encryption sharing function is opened; when the server is used as a client, a menu is provided for a user to set the IP address of the server, and connection is established with the server.
6. The CA card sharing method of claim 5, wherein the digital television all-in-one machine can only be used as one of the working states of the server or the client, and a corresponding selection menu is set in the digital television all-in-one machine for the user to select.
7. A CA card sharing system is characterized in that the system is provided with one of a plurality of digital television integrated machines as a server and the other one as a client, and comprises a realization server module and a realization client module;
the realization server module is used for the server to monitor the connection of the client, receive the relevant information of the sent encrypted program sent by the client and authorize a result and a secret key to the client;
the implementation client module is used for the client to send the relevant information of the encrypted program to the server, receive the authorization result and the secret key of the server and process the authorization result and the secret key.
8. The CA card sharing system of claim 7, wherein each digital television all-in-one machine is simultaneously provided with an implementation server module and an implementation client module, and the implementation server module is used as a server when running, provides a menu for a user to set, and opens an encryption sharing function; when the client module is operated and realized, the client module is used as a client, provides a menu for a user to set the IP address of the server, and establishes connection with the server.
9. The CA card sharing system of claim 7 or 8, wherein the digital television all-in-one machine can only be used as one of the working states of the server or the client at the same time, and a corresponding selection menu is arranged in the digital television all-in-one machine for the user to select.
10. A storage medium storing a CA card sharing method program that realizes the steps of the CA card sharing method of any one of claims 1 to 6 when executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627686.1A CN111385623A (en) | 2018-12-28 | 2018-12-28 | CA card sharing method, system and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627686.1A CN111385623A (en) | 2018-12-28 | 2018-12-28 | CA card sharing method, system and storage medium |
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| CN111385623A true CN111385623A (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811627686.1A Pending CN111385623A (en) | 2018-12-28 | 2018-12-28 | CA card sharing method, system and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101198014A (en) * | 2007-12-25 | 2008-06-11 | 天栢宽带网络科技（上海）有限公司 | Method for preventing smart card sharing CA |
| US20140339508A1 (en) * | 2013-05-20 | 2014-11-20 | Sang Min Hong | Organic light-emitting display device |
| CN104427388A (en) * | 2013-09-10 | 2015-03-18 | 国家广播电影电视总局广播科学研究院 | Operating system of intelligent television |
| CN104703029A (en) * | 2015-02-06 | 2015-06-10 | 深圳市三峰光电科技有限公司 | Digital television program stream sharing method, device, terminal and system |
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2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198014A (en) * | 2007-12-25 | 2008-06-11 | 天栢宽带网络科技（上海）有限公司 | Method for preventing smart card sharing CA |
| US20140339508A1 (en) * | 2013-05-20 | 2014-11-20 | Sang Min Hong | Organic light-emitting display device |
| CN104427388A (en) * | 2013-09-10 | 2015-03-18 | 国家广播电影电视总局广播科学研究院 | Operating system of intelligent television |
| CN104703029A (en) * | 2015-02-06 | 2015-06-10 | 深圳市三峰光电科技有限公司 | Digital television program stream sharing method, device, terminal and system |
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Application publication date: 20200707 |