CN114189724B - Technology upgrading module of conditional access card - Google Patents
Technology upgrading module of conditional access card Download PDFInfo
- Publication number
- CN114189724B CN114189724B CN202111478265.9A CN202111478265A CN114189724B CN 114189724 B CN114189724 B CN 114189724B CN 202111478265 A CN202111478265 A CN 202111478265A CN 114189724 B CN114189724 B CN 114189724B
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- China
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- host
- conditional access
- access card
- technical standard
- card
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- 230000003993 interaction Effects 0.000 claims abstract description 7
- 238000012795 verification Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—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
-
- 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
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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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- 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
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
- H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Stored Programmes (AREA)
Abstract
The invention provides a technical upgrading module of a conditional access card, which comprises a host adapting unit, a conditional access card adapting unit, a technical standard upgrading unit and a controller, wherein the host adapting unit is used for connecting with a host and detecting a technical standard version supported by the host; the condition receiving card adapting unit is used for connecting with the condition receiving card and detecting the technical standard version supported by the condition receiving card; the controller is used for judging whether the technical standard version supported by the host computer is consistent with the technical standard version supported by the conditional access card, if so, starting an internal through mode to enable the host computer and the conditional access card to be in through connection on data interaction; if the technical standards are inconsistent, the technical standard upgrading unit is started, and the host and the conditional access card are adapted to realize the connection between the conditional access card and the host. By adopting the technical scheme, the old version of conditional access card can be adapted to the new version of host without upgrading, so that the upgrading cost is reduced.
Description
Technical Field
The invention relates to the field of digital televisions, in particular to a technical upgrading module of a conditional access card.
Background
At present, no product which can upgrade the sold quantity condition receiving card in the market to meet the new standard according to the updating of the technical standard of the industry exists in the digital television technical industry.
Industry technology standards are updated over time, and are no exception in the field of digital television technology. The digital television conditional access card uses the universal interface technology of the digital broadcast television, and along with the upgrade and update of the standard version of the universal interface technology of the broadcast television, the conditional access card is continuously upgraded and updated to meet the requirement of a new standard, but because the new standard generally has more and higher specification requirements on hardware of the conditional access card, the conditional access card must use new hardware and software to meet the requirement of the new standard in order to realize the upgrade and update, that is, the conditional access card cannot be realized only by the upgrade on the software in order to realize the upgrade and update. It is necessary for the user to re-purchase a new product in order to experience the latest standard technology, on the one hand, additional money is required, and on the other hand, the old conditional access card can be used without experiencing the latest technology, and is a direct throw away. For the conditional access card manufacturer, if the user considers that the purchase of a new product is more and the purchase is not selected, the promotion of the service of the conditional access card manufacturer is not facilitated, and the maintenance and locking of the user group are not facilitated.
Disclosure of Invention
The invention aims to provide a technical upgrading module of a conditional access card, aiming at the defect that the conditional access card is inconvenient to upgrade in the prior art.
The embodiment of the invention provides a technical upgrading module of a conditional access card, which comprises a host adapting unit, a conditional access card adapting unit, a technical standard upgrading unit and a controller,
The host adapting unit is used for connecting with a host and detecting a technical standard version supported by the host;
the condition receiving card adapting unit is used for connecting with the condition receiving card and detecting the technical standard version supported by the condition receiving card;
the controller is used for judging whether the technical standard version supported by the host computer is consistent with the technical standard version supported by the conditional access card,
If the data interaction is consistent, an internal through mode is started, so that the data interaction between the host and the conditional access card is through;
if the technical standards are inconsistent, starting the technical standard upgrading unit, and adapting between the host and the conditional access card to realize connection use of the host and the conditional access card.
In the embodiment of the present invention, when the technical standard version supported by the host is higher than the technical standard version supported by the conditional access card, the technical standard upgrading unit adapts between the host and the conditional access card, so as to implement mutual authentication between the host and the conditional access card, and the method includes:
When the condition receiving card authenticates the host, the technical standard upgrading unit firstly requests a host low-version certificate from the host, acquires the host low-version certificate and stores the host low-version certificate in the technical standard upgrading unit for standby, then restarts the connection between the condition receiving card and the host, after restarting, the technical standard upgrading unit firstly uses the built-in high-version certificate to check the host high-version certificate and then sends the built-in host low-version certificate to the condition receiving card for checking, and only when the check result of the condition receiving card on the host low-version certificate and the check result of the technical standard upgrading unit on the host high-version certificate are all correct, the technical standard upgrading unit sends successful check to the host;
when the host authenticates the conditional access card, the technical standard upgrading unit replaces the conditional access card to send the built-in high-version certificate to the host, and after the host replies the technical standard upgrading unit with successful verification of the high-version certificate, the technical standard upgrading unit directly sends the successful verification to the conditional access card.
In the embodiment of the invention, the storage unit is used for storing certificates of various technical standard versions of the conditional access card and the host.
In the embodiment of the invention, the storage unit is connected with the network server and is used for periodically downloading certificates and software packages of various technical standard versions of the conditional access card into the network server.
In the embodiment of the invention, the host adaptation unit is provided with a physical hardware interface adapted to the host and is used for being connected with the host.
In the embodiment of the invention, the conditional access card adapting unit is provided with a physical hardware interface adapted to the conditional access card and is used for connecting with the conditional access card.
Compared with the prior art, the technical upgrading module of the conditional access card can be in seamless butt joint with a conditional access card conforming to an old standard in the market, realizes compatibility and authentication of a difference part between a new standard and the old standard by detecting the original supported old technical standard specification of the conditional access card, can inherit and fully use the original software and hardware functions of the conditional access card, has lower cost compared with the condition access card of re-purchasing a set of new standard, and effectively reduces the cost.
Drawings
Fig. 1 is a schematic structural diagram of a technology upgrade module in an embodiment of the present invention.
Detailed Description
In the embodiment of the invention, a technical upgrading module of a conditional access card is provided, which comprises a host adapting unit 1, a conditional access card adapting unit 2, a controller 3, a memory and a technical standard upgrading unit 5. The following description will be given separately.
The host adapting unit 1 is configured to connect with a host and detect a technical standard version supported by the host. It should be noted that, the host is a device capable of installing a conditional access card and playing a digital television, and may be a set-top box, or may be the digital television itself with digital signal decoding. In the embodiment of the present invention, the host adaptation unit 1 has a physical interface adapted to a host, and is used for connection with the host. Specifically, the host adapting unit 1 is a physical hardware plug conforming to a universal interface standard, and its main function is to connect with a host having a universal interface, and obtain a technical standard version supported by the host by detecting data on a command channel therein.
The conditional access card adapting unit 2 is configured to connect with a conditional access card, and detect a technical standard version supported by the conditional access card. It should be noted that, in the embodiment of the present invention, the host adapting unit has a physical hardware socket adapted to the conditional access card, so as to insert the conditional access card, and obtain the technical standard version supported by the conditional access card by detecting the data on the command channel.
The controller 3 is configured to determine whether the technical standard version supported by the host and the technical standard version supported by the conditional access card are consistent,
If the data interaction is consistent, an internal through mode is started, so that the data interaction between the host and the conditional access card is through;
If not, the technical standard upgrading unit 5 is started, and the adaptation is carried out between the host and the conditional access card, so that the connection use of the host and the conditional access card is realized.
It should be noted that, the controller 3 may be implemented by an MCU.
The storage unit 4 is used for storing certificates of various technical standard versions of the conditional access card and the host. In the embodiment of the invention, the storage unit 4 is connected with the network server and is used for periodically downloading certificates and software packages of various technical standard versions of the conditional access card into the network server, thereby realizing the update of the certificates.
The technical standard upgrading unit 5 is used for adapting between the host and the conditional access card, making up the difference between the old standard and the new standard on the conditional access card, and realizing the mutual authentication between the conditional access card and the host. The technical standard upgrade unit 5 may call certificates of various technical standard versions of the host and conditional access cards in the storage unit 4. After the technical standard upgrading unit 5 is started, from the perspective of a host, the conditional access card which is not the conditional access card of the original old standard but the conditional access card of the new standard is connected with the technical standard upgrading unit; there is no previous change in view of the conditional access card compared to the host to which it is connected.
It should be noted that, after the host is upgraded, the technical standard version supported by the host is higher than the technical standard version supported by the conditional access card, so that the receiving card cannot be adapted.
Specifically, when the technical standard version supported by the host is higher than the technical standard version supported by the conditional access card, the technical standard upgrading unit 5 adapts between the host and the conditional access card, and the specific process includes:
When the condition receiving card authenticates the host, the technical standard upgrading unit 5 requests the host low-version certificate from the host, obtains the host low-version certificate, stores the host low-version certificate in the technical standard upgrading unit 5 for standby, and then restarts the connection between the condition receiving card and the host. After restarting, the technical standard upgrading unit 5 firstly uses the built-in high-version certificate to check the high-version certificate of the host, then sends the built-in low-version certificate of the host to the conditional access card to check, and only when the checking result of the low-version certificate of the host by the conditional access card and the checking result of the high-version certificate of the host by the technical standard upgrading unit are all correct, the technical standard upgrading unit sends successful check to the host;
when the host authenticates the conditional access card, the technical standard upgrading unit 5 replaces the conditional access card to send the built-in high-version certificate to the host, and after the host replies the technical standard upgrading unit 5 with successful verification of the high-version certificate, the technical standard upgrading unit 5 directly sends the successful verification to the conditional access card.
In summary, the technical upgrade module of the conditional access card of the invention can be seamlessly abutted with a conditional access card conforming to an old standard in the market, can detect the old technical standard specification originally supported by the conditional access card, can realize compatibility and authentication of a difference part between a new standard and the old standard, can inherit and fully use the original software and hardware functions of the conditional access card, has lower cost compared with the condition access card of a new standard, and effectively reduces the cost.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. A technology upgrade module of a conditional access card is characterized by comprising a host adapting unit, a conditional access card adapting unit, a technical standard upgrade unit and a controller,
The host adapting unit is used for connecting with a host and detecting a technical standard version supported by the host;
the condition receiving card adapting unit is used for connecting with the condition receiving card and detecting the technical standard version supported by the condition receiving card;
the controller is used for judging whether the technical standard version supported by the host computer is consistent with the technical standard version supported by the conditional access card,
If the data interaction is consistent, an internal through mode is started, so that the data interaction between the host and the conditional access card is through;
if the technical standards are inconsistent, starting the technical standard upgrading unit, and adapting between the host and the conditional access card to realize the connection between the conditional access card and the host;
when the technical standard version supported by the host is higher than the technical standard version supported by the conditional access card, the technical standard upgrading unit adapts between the host and the conditional access card, and comprises the following steps:
When the condition receiving card authenticates the host, the technical standard upgrading unit firstly requests a host low-version certificate from the host, acquires the host low-version certificate and stores the host low-version certificate in the technical standard upgrading unit for standby, then restarts the connection between the condition receiving card and the host, after restarting, the technical standard upgrading unit firstly uses the built-in high-version certificate to check the host high-version certificate and then sends the built-in host low-version certificate to the condition receiving card for checking, and only when the check result of the condition receiving card on the host low-version certificate and the check result of the technical standard upgrading unit on the host high-version certificate are all correct, the technical standard upgrading unit sends successful check to the host;
when the host authenticates the conditional access card, the technical standard upgrading unit replaces the conditional access card to send the built-in high-version certificate to the host, and after the host replies the technical standard upgrading unit with successful verification of the high-version certificate, the technical standard upgrading unit directly sends the successful verification to the conditional access card.
2. The conditional access card technology upgrade module of claim 1, further comprising a storage unit for storing certificates of various technical standard versions of the conditional access card and the host.
3. The conditional access card technology upgrade module of claim 2, wherein the storage unit is connected to a web server for periodically downloading certificates and software packages of various technical standard versions of the conditional access card into the web server.
4. The technology upgrade module of the conditional access card of claim 1, wherein the host adaptation unit has a physical hardware interface adapted to the host for interfacing with the host.
5. The technology upgrade module of a conditional access card of claim 1, wherein the conditional access card adapting unit has a physical hardware interface adapted to the conditional access card for interfacing with the conditional access card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478265.9A CN114189724B (en) | 2021-12-06 | 2021-12-06 | Technology upgrading module of conditional access card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478265.9A CN114189724B (en) | 2021-12-06 | 2021-12-06 | Technology upgrading module of conditional access card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114189724A CN114189724A (en) | 2022-03-15 |
| CN114189724B true CN114189724B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111478265.9A Active CN114189724B (en) | 2021-12-06 | 2021-12-06 | Technology upgrading module of conditional access card |
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| Country | Link |
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| CN (1) | CN114189724B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037255A (en) * | 2011-09-30 | 2013-04-10 | 乐金电子(中国)研究开发中心有限公司 | Automatic adaptive method for conditional access module (CAM) card |
| CN104602048A (en) * | 2015-02-13 | 2015-05-06 | 深圳国微技术有限公司 | Conditional access module and verification method based on same |
| CN106375806A (en) * | 2016-08-31 | 2017-02-01 | 深圳国微技术有限公司 | User interface update method and system based on conditional access module, and frontend device |
| CN106886196A (en) * | 2015-12-16 | 2017-06-23 | 上海睿锆信息科技有限公司 | With the computer-aided manufacturing method and device and system of digital control system Direct Communication |
| EP3413576A1 (en) * | 2017-06-08 | 2018-12-12 | Vestel Elektronik Sanayi ve Ticaret A.S. | Device for adapting a transport stream, visual display apparatus, and method of adapting a transport stream |
| CN111954047A (en) * | 2019-05-17 | 2020-11-17 | 武汉佳世创科技有限公司 | Method and device for descrambling two paths of code streams by single CAM card |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201214906D0 (en) * | 2012-08-21 | 2012-10-03 | Strategy & Technology Ltd | Device authentication |
-
2021
- 2021-12-06 CN CN202111478265.9A patent/CN114189724B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037255A (en) * | 2011-09-30 | 2013-04-10 | 乐金电子(中国)研究开发中心有限公司 | Automatic adaptive method for conditional access module (CAM) card |
| CN104602048A (en) * | 2015-02-13 | 2015-05-06 | 深圳国微技术有限公司 | Conditional access module and verification method based on same |
| CN106886196A (en) * | 2015-12-16 | 2017-06-23 | 上海睿锆信息科技有限公司 | With the computer-aided manufacturing method and device and system of digital control system Direct Communication |
| CN106375806A (en) * | 2016-08-31 | 2017-02-01 | 深圳国微技术有限公司 | User interface update method and system based on conditional access module, and frontend device |
| EP3413576A1 (en) * | 2017-06-08 | 2018-12-12 | Vestel Elektronik Sanayi ve Ticaret A.S. | Device for adapting a transport stream, visual display apparatus, and method of adapting a transport stream |
| CN111954047A (en) * | 2019-05-17 | 2020-11-17 | 武汉佳世创科技有限公司 | Method and device for descrambling two paths of code streams by single CAM card |
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| Publication number | Publication date |
|---|---|
| CN114189724A (en) | 2022-03-15 |
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