CN102572580B - Method for descrambling set top box through network - Google Patents

Method for descrambling set top box through network Download PDF

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Publication number
CN102572580B
CN102572580B CN201210022058.7A CN201210022058A CN102572580B CN 102572580 B CN102572580 B CN 102572580B CN 201210022058 A CN201210022058 A CN 201210022058A CN 102572580 B CN102572580 B CN 102572580B
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smart card
top box
set top
main frame
slave
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CN201210022058.7A
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CN102572580A (en
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方立
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FUJIAN CHUANGPIN DIGITAL TECHNOLOGY Co Ltd
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FUJIAN CHUANGPIN DIGITAL TECHNOLOGY Co Ltd
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Abstract

The invention provides a method for descrambling a set top box through the network, which comprises the steps that a smart card drive interface of a CA (conditional access) library of the set top box is in indirect butt joint with bottom hardware drive of the smart card but the bottom hardware drive of the smart card is in butt joint with a drive simulation layer of the smart card by compiling the drive simulation layer of the smart card; a protocol processing module arranged in the set top box is in butt joint with the drive simulation layer of the smart card; then a host computer mode and a slave computer mode are configured; data required by the CA library of the slave computer and packaged as a protocol by the protocol processing module are sent to the host computer through an external interface of the set top box, the host computer after receiving the protocol sends a request to the bottom hardware drive of the smart card through the drive simulation layer of the smart card, the bottom hardware drive of the smart card sends the data required to the protocol processing module of the host computer, and then data can return the CA library of the slave computer to realize communication process of the smart card. In the invention, merely one smart card is needed to descramble all the scrambled programs of the set top box in home normally.

Description

A kind of method of descrambling of set top box through network
[technical field]
The present invention relates to a kind of method of descrambling of set top box through network, the domestic consumer who makes to have 2-3 platform Set Top Box only need have in the situation of a sheet smart card and can realize all Set Top Box in family are realized to the normal descrambling to scrambled program.
[background technology]
Along with digital TV set-top box is universal, each family may have the Set Top Box of 2-3 platform at present, and present Digital Television all takes the mode of front end cas system scrambling to send to user substantially.User realizes the descrambling of the digital television program after scrambling to realize watching program by smart card.Because smart card cost compare is high, general user's family at least has the television set of 2-3 platform, therefore need to configure the Set Top Box of 2-3 platform.The digital television program of traditional Set Top Box after to the cas system scrambling of front end radio and television operator needs every machine configure a sheet smart card.If each household all has multiple smart card, need to pay a large amount of costs, therefore how in radio and television operator, ensure television program transmission safety, can guarantee again that the minimum cost price that user pays becomes the emphasis that everybody studies simultaneously.
2007-01-17 is disclosed, and the Chinese utility model patent that publication number is 2859956 discloses a kind of Set Top Box, belongs to field of pay television systems.It comprises primary set-top box and slave top box, and primary set-top box has tuner (1), multichannel condition reception processing module (4), smart card (2), multichannel descrambler (5), A/V decoder (3), IP packetization module (6) and network interface (7); The output of tuner is connected with multichannel condition reception processing module, multichannel condition reception processing module is connected with smart card and interactive communication, the output of multichannel condition reception processing module is connected with multichannel descrambler, one of output of multichannel descrambler is connected with A/V decoder, all the other outputs of described multichannel descrambler are connected with IP packetization module, the output of IP packetization module is connected with network interface, and network interface is communicated by letter with a plurality of slave top boxs by means of network.It uses a sheet smart card just can solve multichannel enciphered digital channel simultaneously, thereby each domestic consumer only need pay the expense of a sheet smart card.
The method needs main frame to have multi channel disposal ability, and on hardware, needs a plurality of tuners, and the data obtained request simultaneously and processing all complete in host side, causes its cost to raise.
2009-06-03 is disclosed, and the invention of China that publication number is 101448131 relates to a kind of digital broadcast condition reception intelligent-sharing system based on wireless network, comprises respectively and the corresponding associated main control terminal of each Set Top Box and several shared terminals; Main control terminal, the information interactive process Set Top Box associated with it by Standard Machine card interface artificial intelligence IC-card communicates, and information interaction behavior and the intellective IC card of replicating machine top box communicate; Shared terminal communicates by the information interaction behavior Set Top Box associated with it of Standard Machine card interface artificial intelligence IC-card, from sharing, associated Set Top Box is obtained authorization control message and entitlement management message is sent to the calculating that main control terminal is carried out the required control word of business descrambling, and sends to Set Top Box the control word parameter receiving from main control terminal.A plurality of receiving terminals that this technical scheme can realize same user in controlled area use the mode of an intellective IC card that comprises service authorization to receive secure service by sharing simultaneously.This invention need to increase the communication transmission that wireless communication module carries out data on the basis of original top-set hardware, need the cost of supplementary payments wireless communication module, so popularization is relatively low.
[summary of the invention]
The technical problem to be solved in the present invention, be to provide a kind of method of descrambling of set top box through network, by being set in Set Top Box, smart card drives simulation layer and protocol process module, make slave also can receive related-program in the situation that not inserting smart card, Ke Shiyihu family only need have in the situation of a sheet smart card and realizes all Set Top Box in family are realized to the normal descrambling to scrambled program.
The present invention is achieved in that a kind of method of descrambling of set top box through network, and it comprises the steps:
Step 10, when the Set Top Box integrating third-party ca of producer storehouse, the smart card in ca storehouse drives interface directly not drive and dock with the smart card bottom hardware of Set Top Box, but drive simulation layer by writing the smart card of Set Top Box, then smart card bottom hardware is driven with smart card and drives simulation layer to dock; One protocol process module is set in Set Top Box again drives simulation layer to dock with described smart card;
Step 20, at described smart card, drive simulation layer that host mode and slave mode option are set, to inserting the Set Top Box of smart card, be set to host mode, being about to the driving of smart card bottom hardware drives interface to dock with the smart card in ca storehouse, the Set Top Box that makes this insertion smart card is main frame, then drives simulation layer to drive and be connected with smart card bottom hardware the smart card of main frame; To not inserting the Set Top Box of smart card, be set to slave mode, smart card bottom hardware drives the disconnection that is connected that drives simulation layer with described smart card, makes it to become slave;
Step 40, described host mode are to drive interface to drive simulation layer to drive and send request to smart card bottom hardware by smart card by the smart card in main frame ca storehouse, after request is received in the driving of smart card bottom hardware, by smart card, drive simulation layer to send required data to the ca storehouse of main frame;
Described slave mode is to drive simulation layer in ca storehouse, by smart card, to drive the data that interface sends to give protocol process module by the smart card of slave, protocol process module is after agreement, to send to by the external interface of Set Top Box the protocol process module of main frame the data encapsulation of receiving again, the protocol process module of main frame receives that the smart card by main frame drives simulation layer to drive and send request to smart card bottom hardware after agreement, smart card bottom hardware drives simulation layer to send required data to the protocol process module of main frame by smart card after driving and receiving request, then by the protocol process module of main frame, the external interface by Set Top Box is encapsulated as result the protocol process module that agreement feeds back to slave, the protocol process module of slave receives after agreement, take out the data that wherein need, by smart card, drive simulation layer data to be sent in the ca storehouse of slave, complete the communication process of smart card, on main frame, there is process to be used for waiting for specially the communication request that slave sends.
Further, between described step 20 and step 40, also comprise: step 30, described slave authenticates bindings by main frame, when radio and television operator sells Set Top Box, to being set to the Set Top Box of slave and unique main frame, carry out binding authentication operation, this binding authentication operation is by ca card number, the id of the sequence number of set top box of main frame and main frame cpu is encrypted computing, the data that obtain are kept in the storage of slave, in main frame, preserve the id of cpu and the sequence number of Set Top Box of slave simultaneously, when each communication, first at main frame and slave, directly carry out certification work, if authentication by, complete this time communication, if authentication error directly stops this time communication.
Wherein, in described step 30, when described slave authenticates bindings by main frame, also need the id of cpu of the id information of the sequence number of set top box of the card number of described smart card, main frame, main frame cpu and slave and the sequence number of Set Top Box to carry out verification, the algorithm of this verification is provided with the form of library file by radio and television operator or ca producer.
Further, the external interface of the Set Top Box in described step 40 is network interface or usb interface.
Tool of the present invention has the following advantages: the inventive method drives simulation layer and protocol process module by the smart card of Set Top Box is set, and the smart card that makes main frame drives simulation layer to drive and be connected with top-set hardware smart card, making, in slave, protocol process module is set drives simulation layer to dock with described smart card again, and drive interface and external interface to carry out smart card communications data encapsulation and transmission by the smart card of Set Top Box, make slave also can receive related-program in the situation that not inserting smart card, Ke Shiyihu family only need have in the situation of a sheet smart card and realizes all Set Top Box in family are realized to the normal descrambling to scrambled program.And the external interface that the Set Top Box that the present invention uses carries communicates, and cost is more cheap, has better popularization simultaneously.The loom that simultaneously its authentication bindings can provide effective method to stop non-radio and television operator to authenticate obtains the ability of descrambling, the lawful right of guarantee radio and television operator by the method.
[accompanying drawing explanation]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural principle block diagram of Set Top Box in the inventive method.
Fig. 2 is the operation principle structured flowchart of the inventive method main frame.
Fig. 3 is the operation principle structured flowchart of the inventive method slave.
[embodiment]
In conjunction with Fig. 1 to Fig. 3, describe method one preferred embodiment of the descrambling of set top box through network of the present invention in detail, this preferred embodiment comprises the steps:
Step 10, when the Set Top Box integrating third-party ca of producer storehouse, as shown in Figure 1, the smart card in ca storehouse drives interface directly not drive and dock with the smart card bottom hardware of Set Top Box, but drive simulation layer by writing the smart card of Set Top Box, then smart card bottom hardware is driven with described smart card and drives simulation layer to dock; One protocol process module is set in Set Top Box again drives simulation layer to dock with described smart card.
Step 20, at described smart card, drive simulation layer that host mode and slave mode option are set, to inserting the Set Top Box of smart card, be set to host mode, being about to the driving of smart card bottom hardware drives interface to dock with the smart card in ca storehouse, the Set Top Box that makes this insertion smart card is main frame, then drives simulation layer to drive and be connected with smart card bottom hardware the smart card of main frame; To not inserting the Set Top Box of smart card, be set to slave mode, smart card bottom hardware drives the disconnection that is connected that drives simulation layer with described smart card, makes it to become slave.
Step 30, described slave authenticates bindings by main frame, when radio and television operator sells Set Top Box, to being set to the Set Top Box of slave and unique main frame, carry out binding authentication operation, this binding authentication operation is by ca card number, the id of the sequence number of set top box of main frame and main frame cpu is encrypted computing, the data that obtain are kept in the storage of slave, in main frame, preserve the id of cpu and the sequence number of Set Top Box of slave simultaneously, when each communication, first at main frame and slave, directly carry out certification work, if authentication by, complete this time communication, if authentication error directly stops this time communication.
In this step, when described slave authenticates bindings by main frame, also need the id of cpu of the id information of the sequence number of set top box of the card number of described smart card, main frame, main frame cpu and slave and the sequence number of Set Top Box to carry out verification, the algorithm of this verification is provided with the form of library file by radio and television operator or ca producer.
Step 40, as shown in Figure 2, described host mode is to drive interface to drive simulation layer to send request to the driving of smart card bottom hardware by smart card by the smart card in main frame ca storehouse, smart card bottom hardware drives simulation layer to send required data to the ca storehouse of main frame by smart card after driving and receiving request, the flow direction of its data can be by shown in the arrow of band numbering in Fig. 2, and wherein numbering represents the priority of step.
As shown in Figure 3, described slave mode is to drive simulation layer in ca storehouse, by smart card, to drive the data that interface sends to give protocol process module by the smart card of slave, protocol process module is after agreement, to send to by the external interface of Set Top Box the protocol process module of main frame the data encapsulation of receiving again, the protocol process module of main frame receives that the smart card by main frame drives simulation layer to drive and send request to smart card bottom hardware after agreement, smart card bottom hardware drives simulation layer to send required data to the protocol process module of main frame by smart card after driving and receiving request, then by the protocol process module of main frame, the external interface by Set Top Box is encapsulated as result the protocol process module that agreement feeds back to slave, the protocol process module of slave receives after agreement, take out the data that wherein need, by smart card, drive simulation layer data to be sent in the ca storehouse of slave, complete the communication process of smart card, the flow direction of its data can be by shown in the arrow of band numbering in Fig. 3, and wherein numbering represents the priority of step.In addition, on main frame, there is process to be used for waiting for specially the communication request that slave sends.The external interface of the Set Top Box in described step 40 can be network interface or usb interface.From the above, in the mode of operation of slave, the smart card in the ca storehouse of slave drives interface not drive into row data communication with the smart card bottom hardware of slave, the needed data in ca storehouse that are slave are not obtained from the smart card bottom hardware of slave drives, but smart card by slave and main frame drives simulation layer, protocol process module as bridge, to go to obtain data in the smart card bottom hardware driving of main frame.Thereby reach the slave that does not insert smart card and also can realize the normal descrambling to scrambled program.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present invention; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.

Claims (4)

1. a method for the descrambling of set top box through network, is characterized in that: comprise the steps:
Step 10, when the Set Top Box integrating third-party ca of producer storehouse, the smart card in ca storehouse drives interface directly not drive and dock with the smart card bottom hardware of Set Top Box, but drive simulation layer by writing the smart card of Set Top Box, then smart card bottom hardware is driven with described smart card and drives simulation layer to dock; One protocol process module is set in Set Top Box again drives simulation layer to dock with described smart card;
Step 20, at described smart card, drive simulation layer that host mode and slave mode option are set, to inserting the Set Top Box of smart card, be set to host mode, being about to the driving of smart card bottom hardware drives interface to dock with the smart card in ca storehouse, the Set Top Box that makes this insertion smart card is main frame, then drives simulation layer to drive and be connected with smart card bottom hardware the smart card of main frame; To not inserting the Set Top Box of smart card, be set to slave mode, smart card bottom hardware drives the disconnection that is connected that drives simulation layer with described smart card, makes it to become slave;
Step 40, described host mode are to drive interface to drive simulation layer to drive and send request to smart card bottom hardware by smart card by the smart card in main frame ca storehouse, after request is received in the driving of smart card bottom hardware, by smart card, drive simulation layer to send required data to the ca storehouse of main frame;
Described slave mode is to drive simulation layer in ca storehouse, by smart card, to drive the data that interface sends to give protocol process module by the smart card of slave, protocol process module is after agreement, to send to by the external interface of Set Top Box the protocol process module of main frame the data encapsulation of receiving again, the protocol process module of main frame receives that the smart card by main frame drives simulation layer to drive and send request to smart card bottom hardware after agreement, smart card bottom hardware drives simulation layer to send required data to the protocol process module of main frame by smart card after driving and receiving request, then by the protocol process module of main frame, the external interface by Set Top Box is encapsulated as result the protocol process module that agreement feeds back to slave, the protocol process module of slave receives after agreement, take out the data that wherein need, by smart card, drive simulation layer data to be sent in the ca storehouse of slave, complete the communication process of smart card, on main frame, there is process to be used for waiting for specially the communication request that slave sends.
2. the method for the descrambling of a kind of set top box through network according to claim 1, is characterized in that: between described step 20 and step 40, also comprise:
Step 30, described slave authenticates bindings by main frame, when radio and television operator sells Set Top Box, to being set to the Set Top Box of slave and unique main frame, carry out binding authentication operation, this binding authentication operation is by ca card number, the id of the sequence number of set top box of main frame and main frame cpu is encrypted computing, the data that obtain are kept in the storage of slave, in main frame, preserve the id of cpu and the sequence number of Set Top Box of slave simultaneously, when each communication, first at main frame and slave, directly carry out certification work, if authentication by, complete this time communication, if authentication error directly stops this time communication.
3. the method for the descrambling of a kind of set top box through network according to claim 2, it is characterized in that: in described step 30, when described slave authenticates bindings by main frame, also need the id of cpu of the id information of the sequence number of set top box of the card number of described smart card, main frame, main frame cpu and slave and the sequence number of Set Top Box to carry out verification, the algorithm of this verification is provided with the form of library file by radio and television operator or ca producer.
4. the method for the descrambling of a kind of set top box through network according to claim 1, is characterized in that: the external interface of the Set Top Box in described step 40 is network interface or usb interface.
CN201210022058.7A 2012-01-31 2012-01-31 Method for descrambling set top box through network Expired - Fee Related CN102572580B (en)

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CN105376619B (en) * 2015-10-26 2019-03-19 广东海信宽带科技有限公司 A kind of set-top box and the means of communication with smart card
CN106385631B (en) * 2016-11-02 2019-07-05 北京数码视讯软件技术发展有限公司 A kind of middleware of set top box system authorization method, apparatus and set-top box
CN108989862B (en) * 2018-08-02 2021-02-26 深圳市茁壮网络股份有限公司 Processing method and device for abnormal operation of smart card

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CN201813497U (en) * 2010-06-04 2011-04-27 四川九州电子科技股份有限公司 Terminal device for realizing control on multiple set top boxes

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Publication number Priority date Publication date Assignee Title
CN1728818A (en) * 2005-07-29 2006-02-01 上海广电通讯网络有限公司 Wireless distribution association mode of digital TV contents for multiple receiving terminals shared in same account
CN2836363Y (en) * 2005-11-02 2006-11-08 北京东方广视科技有限责任公司 Digital set-top box mother-son machine system for CATV
CN101505403A (en) * 2009-03-12 2009-08-12 四川长虹电器股份有限公司 Primary-secondary card authentication method under digital television bidirectional network environment
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