CN202178853U - Multi-functional set top box with encryption system - Google Patents
Multi-functional set top box with encryption system Download PDFInfo
- Publication number
- CN202178853U CN202178853U CN2011202692403U CN201120269240U CN202178853U CN 202178853 U CN202178853 U CN 202178853U CN 2011202692403 U CN2011202692403 U CN 2011202692403U CN 201120269240 U CN201120269240 U CN 201120269240U CN 202178853 U CN202178853 U CN 202178853U
- Authority
- CN
- China
- Prior art keywords
- top box
- set top
- module
- smart card
- main frame
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Abstract
The utility model discloses a multi-functional set top box with an encryption system, which comprises a casing. A main machine, an intelligent card module, a front control plate module and a controller of the main machine are arranged in the casing. The intelligent card module, the front control plate module and the controller are connected with the main machine respectively. The multi-functional set top box has the advantages of being simple in structure, convenient to use and the like.
Description
[technical field]
The utility model relates to a kind of multifunctional set top box with encryption system.
[background technology]
STB be divided into the non-plug-in card machine of common machine with the plug-in card machine; The STB of plug-in card machine; Plug-in card can only not watched and not encrypt free satellite TV's program, and the STB of non-plug-in card machine can only be seen and not encrypt free satellite TV, also can decipher a bit of time of broadcast but encrypt platform sometimes; You can receive with non-plug-in card machine, and you just can't watch but encrypt the back.Therefore, existing STB uses inadequately and makes things convenient for.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, and the multifunctional set top box of band encryption system a kind of rational in infrastructure, easy to use is provided.
To achieve these goals, the utility model adopts following technical scheme:
A kind of multifunctional set top box with encryption system includes shell, is provided with main frame in the enclosure, smart card module, preceding control plate module, the remote controller of main frame; Said smart card module, preceding control plate module, remote controller is connected with main frame respectively.
The beneficial effect of the utility model is following: the utility model simple in structure, easy to operate, be convenient to promote.
[description of drawings]
Fig. 1 is the structure chart of the utility model.
[embodiment]
Referring to Fig. 1, a kind of multifunctional set top box with encryption system includes shell, it is characterized in that being provided with in the enclosure main frame 1, smart card module 2, preceding control plate module 3, the remote controller 4 of main frame 1; Said smart card module 2, preceding control plate module 3, remote controller 4 is connected with main frame 1 respectively.The user is through the menu interface of remote controller 4 operating hosts 1.
Also be provided with receiver module 5 in the enclosure, current/voltage output module 6, interface module 7, receiver module 5, current/voltage output module 6, interface module 7 is connected with main frame 1 respectively.Receiver module 5 is the satellite-signals that converge that are used for receiving the satellite earth antenna reflection, and frequency conversion becomes the intermediate-freuqncy signal between the 950-2150 to lead on the set top box receiver through cable more then.
Interface module can be used for connecting the Debugging message that the RS232 serial ports is checked STB to the PC.
Said smart card module 2 adopts the John Connors encryption system.Said main frame 1 adopts the M3329C chip.
The utility model operation principle is following:
1, operating process:
Get into the M3329C chip initiation after STB powers on, be initialization procedure then, and each ancillary equipment is carried out self check that each module is carried out initialization ancillary equipment.After the user start, smart card module 2 in, insert smart card, this smart card is the John Connors card, and entering satellite programming search interface has been searched for program and retreated out menu and just can play the ciphered program of John Connors.
2, smart card information:
The user inserts the John Connors card that Norway John Connors Co., Ltd produces at the back of starting shooting, get into main menu-＞system's setting-＞condition of Norway John Connors Co., Ltd receives menu, can see the regular reservation state of program. state-event, token status; The modification condition receives password, and the maturity grade about information such as Norway John Connors Co., Ltds, wherein comprises vendor name; Time started, concluding time, right; Software version, interface version, card number; Session number, language, the numbering of condition receiving system etc.
3, said smart card module work is following:
The main frame 1 of STB detects code stream if the scrambling code stream; Then drive card reader work, the smart card hypervisor is called in central processing unit start operation, read the card number of smart card; And in the special information program information of the program of MPTS, find the CAT Conditional Access Table CAT Conditional Access Table; Find corresponding Entitlement Management Message information according to the Entitlement Management Message PID Packet Identifier that provides in the CAT Conditional Access Table table, then the card number of smart card and the card number in the authorization message in the Entitlement Management Message are proofreaded, just carry out the addressing compare operation; If it is invalid to proofread, on screen, will there be the relevant information of pointing out you also can not watch without permission to show.If proofread successfully then send Entitlement Control Message and Entitlement Management Message to smart card; In smart card, call decrypted program; With the individual distributing key private key in the smart card Entitlement Management Message, Entitlement Control Message are successively deciphered and to be obtained business cipher key and final controlled word, send control word back to the STB main frame and accomplish descrambling program stream.Simultaneously the key business cipher key is stored in the smart card; Afterwards watch deciphering and descrambling in the process get final product with regard to the business cipher key that directly calls in the card, need not repeat licensing process, and this moment, system only need transmit Entitlement Control Message just; Have only and when operator will upgrade business cipher key, just begin a new licensing process; Business cipher key of common every renewal, the operation commercial city will constantly be sent Entitlement Management Message with time of several days and authorized to the user, if some user because
Other reasons is not start during authorizing, and has only through after being confirmed by front end, sends special-purpose Entitlement Management Message to this user.
For more selection being provided for the user aspect the program ordering; Condition receiving system is regularly subscribed gradation pay tv, pay tv and the multiple authorization such as pay fees by the hour immediately of also can providing except the most basic program; These authorizations all invest on the program; And (reservation type, gradation pay tv expense, preview time etc.) are described with additional parameter, general, they are carried on as control word in the Entitlement Control Message information.Therefore, in user's smart card, all there are a plurality of individual distributing key private keys usually, all corresponding a kind of authorization of each individual distributing key, all corresponding a kind of Entitlement Management Message of the authorization of each.
4, the security performance of smart card:
In the process of whole mandate, the confidentiality of smart card is depended in the fail safe of condition receiving system, and smart card must have anti-very reliably replication performance, and the smart card that condition receiving system adopted is the highest central processing unit card of fail safe.The central processing unit smart card is a plastic clip, embeds integrated circuits such as central processing unit, read-only memory EPROM read-only memory, EEPROM read-only memory and random asccess memory within it and forms chip piece.The read-only memory that has the mask of a special use to cross in the smart card; Be used for storing station address individual distributing key, decipherment algorithm and operation sequence; These contents can not be read: if attempt to scan chip or other means read the data in the smart card with electron microscope, then the information in the EEPROM read-only memory will all be wiped free of.At chip internal, data flow flows between the memory of chip internal and also can not detect, and this has just fundamentally solved the safety problem of smart card.The data of chip internal addressing are encrypted, and memory can be divided into several independently sub-districts, and all there is the secret code of oneself each sub-district.Because the smart card Cipher Strength is high, through means such as mask ROM, subregion storage chip internal datas individual distributing key is protected, therefore the general maintenance of individual distributing key immobilizes.
For the receiver of present domestic employing separation between machine and card scheme, the safety precautions of its safety precautions and smart card is similar.
Claims (5)
1. the multifunctional set top box with encryption system includes shell, it is characterized in that being provided with in the enclosure main frame (1), smart card module (2), preceding control plate module (3), the remote controller (4) of main frame (1); Said smart card module (2), preceding control plate module (3), remote controller (4) is connected with main frame (1) respectively.
2. a kind of multifunctional set top box with encryption system according to claim 1 is characterized in that also being provided with in the enclosure receiver module (5), and it is connected with main frame (1).
3. a kind of multifunctional set top box with encryption system according to claim 1 is characterized in that also being provided with in the enclosure current/voltage output module (6), and it is connected with main frame (1).
4. a kind of multifunctional set top box with encryption system according to claim 1 is characterized in that also being provided with in the enclosure interface module (7), and it is connected with main frame (1).
5. a kind of multifunctional set top box with encryption system according to claim 1 is characterized in that said main frame (1) adopts the M3329C chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202692403U CN202178853U (en) | 2011-07-27 | 2011-07-27 | Multi-functional set top box with encryption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202692403U CN202178853U (en) | 2011-07-27 | 2011-07-27 | Multi-functional set top box with encryption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178853U true CN202178853U (en) | 2012-03-28 |
Family
ID=45868714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202692403U Expired - Fee Related CN202178853U (en) | 2011-07-27 | 2011-07-27 | Multi-functional set top box with encryption system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139642A (en) * | 2013-02-20 | 2013-06-05 | 深圳创维数字技术有限公司 | Method, related device and system of signal encryption achieved in set top box |
-
2011
- 2011-07-27 CN CN2011202692403U patent/CN202178853U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139642A (en) * | 2013-02-20 | 2013-06-05 | 深圳创维数字技术有限公司 | Method, related device and system of signal encryption achieved in set top box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20150727 |
|
| EXPY | Termination of patent right or utility model |