CN105828186A - Set top box recorded program secondary encryption method - Google Patents
Set top box recorded program secondary encryption method Download PDFInfo
- Publication number
- CN105828186A CN105828186A CN201610167656.1A CN201610167656A CN105828186A CN 105828186 A CN105828186 A CN 105828186A CN 201610167656 A CN201610167656 A CN 201610167656A CN 105828186 A CN105828186 A CN 105828186A
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- top box
- set top
- encryption
- programme
- recorded file
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- 238000000034 method Methods 0.000 title claims abstract description 77
- 230000008569 process Effects 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
-
- 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
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42684—Client identification by a unique number or address, e.g. serial number, MAC address, socket ID
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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
- H04N21/4627—Rights management associated to the content
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Power Engineering (AREA)
- Storage Device Security (AREA)
Abstract
The present invention provides a set top box recorded program secondary encryption method. An encryption process comprises the steps of A1 using a set top box to receive a television program and descramble; A2 after encrypting, a user selecting one or more of the encrypted content to set by himself, and carrying out the secondary encryption on the descrambled television program by the encryption setting;A3 recording the television program after the secondary encryption and generating a recorded file to store in a mobile storage device. A decryption process comprises the steps of B1 selecting the set top box and a CA card, clicking and playing the recorded file in the mobile storage device, determining whether the recorded file matches the decryption, if yes, playing the recorded file, if not, stopping playing the recorded file. An encryption mechanism and algorithm of the present invention is strong in encryption operability, satisfies the demands of the operators and the customers, and enables the user experience degree to be improved.
Description
Technical field
The present invention relates to set-top box technique field, particularly relate to a kind of method that Set Top Box records the encryption of program secondary.
Background technology
At present, along with the development of DTV, top box of digital machine is expanded and universal in each corner in the world.Operator is sent to Set Top Box after once encrypting TV programme, Set Top Box descrambles after receiving TV programme, and user could watch these TV programme.Along with top box of digital machine function is the most perfect, DTV STB has to be recorded and watches the function playbacking program.So, secondary encryption system arises at the historic moment.Scrambling or the step such as unscrambled recording program, descrambling, secondary encryption, storage can could can only play realizing recorded program in the case of the deciphering being consistent with recording grade by system.
At present, Set Top Box on the market is the most various to the encryption recording program.Sometimes simply using random number simply to encrypt, or do not remove encrypting shooting file, operator's program so can be caused by such pirate recordings, be then passed to online, cause the loss of copyright, piracy is walked crosswise.
Summary of the invention
The technical problem to be solved in the present invention, a kind of method being to provide Set Top Box to record the encryption of program secondary, recorded program can well be realized could be able to play in the case of the current Set Top Box recorded and current CA card insert, it is possible to achieve the program recorded carries out the purpose of the secondary encryption of polymorphic type, many grades.
The present invention is achieved in that
A kind of Set Top Box records the method for program secondary encryption, including ciphering process and decrypting process；
Described ciphering process comprises the steps:
Step A1, Set Top Box receive TV programme and descramble；
Step A2, user are encrypted after arranging, and one or more in the content that the content Choice encryption voluntarily arranged according to encryption is arranged are configured, and arranged by encryption and the TV programme after descrambling are carried out secondary encryption；
Step A3, record the TV programme after secondary encryption, and generate a recorded file and be stored in movable storage device；
Described decrypting process comprises the steps:
Step B1, a selected Set Top Box and a CA card, click under described movable storage device and play described recorded file, it is judged that whether described recorded file mates deciphering, the most then play this recorded file；If it is not, then stop playing this recorded file.
Further, the content that the encryption in described step A2 is arranged includes arranging secret grade, and arranging secret grade is 0 grade, 1 grade, 2 grades or 3 grades；
Described ciphering process and decrypting process are specific as follows:
When secret grade is 0 grade, the TV programme received are descrambled and record by Set Top Box, generate a recorded file and are stored in movable storage device, described recorded file not being done any encryption in recording process；When playing, the Set Top Box using any No. ID and the CA card inserting any CA card number or do not insert CA card and all can play described recorded file；
When secret grade is 1 grade, the TV programme received are descrambled and record by Set Top Box, one time interval is set, the unique ID number of Set Top Box was inserted within the corresponding time by recording process as key, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box using this unique ID number and the CA card inserting any CA card number could play described recorded file；
When secret grade is 2 grades, the TV programme received are descrambled and record by Set Top Box, one time interval is set, unique ID number and the CA card number of Set Top Box were inserted within the corresponding time by recording process as key, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box only using this unique ID number and the CA card inserting this CA card number could play described recorded file；
When secret grade is 3 grades, the TV programme received are descrambled and record by Set Top Box, one time interval is set, using the unique ID number of Set Top Box, CA card number with uniquely add confidential information and insert as key within the corresponding time in recording process, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box, the CA card inserting this CA card number that only use this unique ID number and input this and uniquely add confidential information and could play described recorded file.
Further, the described confidential information that uniquely adds is formed by program names, performance recording time started and a random number combination.
Further, the content that the encryption in step A2 is arranged includes arranging movable storage device encryption, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled and record by Set Top Box, and key is written to movable storage device, and the TV programme after being descrambled by the double secret key of write in recording process carry out secondary encryption, generate a recorded file and are stored in movable storage device；When playing, Set Top Box verifies whether the key of this write meets the result that this key Unified Algorithm draws, if meeting, then plays described recorded file；If being unsatisfactory for, the most do not play described recorded file.
Further, the content that the encryption in step A2 is arranged includes arranging recording password, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, arrange the recording password of these TV programme, then record and generate a recorded file and be stored in movable storage device；When playing, the recording password of input correspondence could play described recorded file.
Further, the content that the encryption in step A2 is arranged includes arranging encryption times, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, the encryption times of these TV programme is set for being encrypted the content of TV program of this time period, the TV programme within this time period are not non-encrypted state, then record and generate a recorded file and be stored in movable storage device；When playing, after only the content of TV program in this time period being decrypted, the content of TV program in this time period could be play, rather than the TV programme under encrypted state can be with normal play.
Further, the content that the encryption in step A2 is arranged includes arranging encrypted term, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, the encrypted term of these TV programme is set for being encrypted the content of TV program started within the time set from recording, when the TV programme of the encrypted term exceeding setting are non-encrypted state, then record and generate a recorded file and be stored in movable storage device；When playing, after only the content of TV program in this time limit being decrypted, the content of TV program in this time limit could be play, rather than the TV programme under encrypted state can be with normal play.
Further, described movable storage device is USB flash disk, hard disk, SD card or CD.
Present invention have the advantage that the present invention passes through multiple encryption mechanism and AES, can meet operator and the client demand to recording program secondary encryption, encryption kind becomes many, makes the encryption to recording program have more operability, meet operator and customer demand, improve user experience.
Accompanying drawing explanation
The present invention is further illustrated the most in conjunction with the embodiments.
Fig. 1 is the method execution flow chart that a kind of Set Top Box of the present invention records the encryption of program secondary.
Fig. 2 is the method execution flow chart that a kind of Set Top Box of the present invention records program decryption.
Detailed description of the invention
For making the present invention become apparent, existing with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
As depicted in figs. 1 and 2, a kind of Set Top Box of the present invention records the method for program secondary encryption, including ciphering process and decrypting process；
Described ciphering process comprises the steps:
Step A1, Set Top Box receive TV programme and descramble；
Step A2, set-top box menu are provided with encryption and arrange the page, user logs in this encryption and arranges the page and be encrypted setting, one or more in the content that the content Choice encryption voluntarily arranged according to encryption is arranged are configured, and arranged by encryption and the TV programme after descrambling are carried out secondary encryption；
Step A3, recording the TV programme after secondary encryption, and generate a recorded file and be stored in movable storage device, described movable storage device is USB flash disk, hard disk, SD card or CD；
Described decrypting process comprises the steps:
Step B1, a selected Set Top Box and a CA card (i.e. CMMB mobile TV CA decryption card, for CMMB mobile TV terminal equipment, for the part terminal unit to the city that CMMB encrypts), click under described movable storage device and play described recorded file, judge whether described recorded file mates deciphering, the most then play this recorded file；If it is not, then stop playing this recorded file.
Further, the content that the encryption in described step A2 is arranged includes arranging secret grade, and arranging secret grade is 0 grade, 1 grade, 2 grades or 3 grades；Set Top Box acquiescence can set a lowest class for operator, menu is less than the option of the lowest class by graying, it is impossible to selected, this ensures that theres operator and can freely set the height of TV programme authority to be protected；
Described ciphering process and decrypting process are specific as follows:
When secret grade is 0 grade (without encryption), the TV programme received are descrambled and record by Set Top Box, generate a recorded file and are stored in movable storage device, described recorded file not being done any encryption in recording process；When playing, the Set Top Box using any No. ID and the CA card inserting any CA card number or do not insert CA card and all can play described recorded file；
When secret grade is 1 grade, the TV programme received are descrambled and record by Set Top Box, one time interval is set, the unique ID number of Set Top Box was inserted within the corresponding time by recording process as key, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box using this unique ID number and the CA card inserting any CA card number could play described recorded file；
When secret grade is 2 grades, the TV programme received are descrambled and record by Set Top Box, one time interval is set, unique ID number and the CA card number of Set Top Box were inserted within the corresponding time by recording process as key, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box only using this unique ID number and the CA card inserting this CA card number could play described recorded file；
When secret grade is 3 grades, the TV programme received are descrambled and record by Set Top Box, one time interval is set, using the unique ID number of Set Top Box, CA card number with uniquely add confidential information and insert as key within the corresponding time in recording process, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box, the CA card inserting this CA card number that only use this unique ID number and input this and uniquely add confidential information and could play described recorded file；Specifically, the described confidential information that uniquely adds is when starting to record program, combines formation by program names, performance recording time started and a random number；
Further, the content that the encryption in step A2 is arranged includes arranging movable storage device encryption, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled and record by Set Top Box, and key is written to movable storage device, and the TV programme after being descrambled by the double secret key of write in recording process carry out secondary encryption, generate a recorded file and are stored in movable storage device；When playing, Set Top Box verifies whether the key of this write meets the result that this key Unified Algorithm draws, if meeting, then plays described recorded file；If being unsatisfactory for, the most do not play described recorded file.
Further, the content that the encryption in step A2 is arranged includes arranging recording password, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, arrange the recording password of these TV programme, then record and generate a recorded file and be stored in movable storage device；When playing, the recording password of input correspondence could play described recorded file.
Further, the content that the encryption in step A2 is arranged includes arranging encryption times, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, the encryption times of these TV programme is set for being encrypted the content of TV program of this time period, the TV programme within this time period are not non-encrypted state, then record and generate a recorded file and be stored in movable storage device；When playing, after only the content of TV program in this time period being decrypted, the content of TV program in this time period could be play, rather than the TV programme under encrypted state can be with normal play.
Further, the content that the encryption in step A2 is arranged includes arranging encrypted term, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, the encrypted term of these TV programme is set for being encrypted the content of TV program started within the time set from recording, when the TV programme of the encrypted term exceeding setting are non-encrypted state, then record and generate a recorded file and be stored in movable storage device；When playing, after only the content of TV program in this time limit being decrypted, the content of TV program in this time limit could be play, rather than the TV programme under encrypted state can be with normal play.
In sum, present invention have the advantage that
The present invention passes through multiple encryption mechanism and AES, can meet operator and the client demand to recording program secondary encryption, and encryption kind becomes many, makes the encryption to recording program have more operability, meets operator and customer demand, raising user experience.
Although the foregoing describing the detailed description of the invention of the present invention; but those familiar with the art is to be understood that; we are merely exemplary described specific embodiment; rather than for the restriction to the scope of the present invention; those of ordinary skill in the art, in the equivalent modification made according to the spirit of the present invention and change, should be contained in the scope of the claimed protection of the present invention.
Claims (8)
1. the method that a Set Top Box records the encryption of program secondary, it is characterised in that: include ciphering process and decrypting process；
Described ciphering process comprises the steps:
Step A1, Set Top Box receive TV programme and descramble；
Step A2, user are encrypted after arranging, and one or more in the content that the content Choice encryption voluntarily arranged according to encryption is arranged are configured, and arranged by encryption and the TV programme after descrambling are carried out secondary encryption；
Step A3, record the TV programme after secondary encryption, and generate a recorded file and be stored in movable storage device；
Described decrypting process comprises the steps:
Step B1, a selected Set Top Box and a CA card, click under described movable storage device and play described recorded file, it is judged that whether described recorded file mates deciphering, the most then play this recorded file；If it is not, then stop playing this recorded file.
A kind of Set Top Box the most according to claim 1 records the method for program secondary encryption, it is characterised in that: the content that the encryption in described step A2 is arranged includes arranging secret grade, and arranging secret grade is 0 grade, 1 grade, 2 grades or 3 grades；
Described ciphering process and decrypting process are specific as follows:
When secret grade is 0 grade, the TV programme received are descrambled and record by Set Top Box, generate a recorded file and are stored in movable storage device, described recorded file not being done any encryption in recording process；When playing, the Set Top Box using any No. ID and the CA card inserting any CA card number or do not insert CA card and all can play described recorded file；
When secret grade is 1 grade, the TV programme received are descrambled and record by Set Top Box, one time interval is set, the unique ID number of Set Top Box was inserted within the corresponding time by recording process as key, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box using this unique ID number and the CA card inserting any CA card number could play described recorded file；
When secret grade is 2 grades, the TV programme received are descrambled and record by Set Top Box, one time interval is set, unique ID number and the CA card number of Set Top Box were inserted within the corresponding time by recording process as key, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box only using this unique ID number and the CA card inserting this CA card number could play described recorded file；
When secret grade is 3 grades, the TV programme received are descrambled and record by Set Top Box, one time interval is set, using the unique ID number of Set Top Box, CA card number with uniquely add confidential information and insert as key within the corresponding time in recording process, thus the TV programme after descrambling are carried out secondary encryption, generate a recorded file and be stored in movable storage device；When playing, the Set Top Box, the CA card inserting this CA card number that only use this unique ID number and input this and uniquely add confidential information and could play described recorded file.
A kind of Set Top Box the most according to claim 2 records the method for program secondary encryption, it is characterised in that: the described confidential information that uniquely adds is formed by program names, performance recording time started and a random number combination.
A kind of Set Top Box the most according to claim 1 records the method for program secondary encryption, it is characterised in that: the content that the encryption in step A2 is arranged includes arranging movable storage device encryption, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled and record by Set Top Box, and key is written to movable storage device, and the TV programme after being descrambled by the double secret key of write in recording process carry out secondary encryption, generate a recorded file and are stored in movable storage device；When playing, Set Top Box verifies whether the key of this write meets the result that this key Unified Algorithm draws, if meeting, then plays described recorded file；If being unsatisfactory for, the most do not play described recorded file.
A kind of Set Top Box the most according to claim 1 records the method for program secondary encryption, it is characterised in that: the content that the encryption in step A2 is arranged includes arranging recording password, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, arrange the recording password of these TV programme, then record and generate a recorded file and be stored in movable storage device；When playing, the recording password of input correspondence could play described recorded file.
A kind of Set Top Box the most according to claim 1 records the method for program secondary encryption, it is characterised in that: the content that the encryption in step A2 is arranged includes arranging encryption times, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, the encryption times of these TV programme is set for being encrypted the content of TV program of this time period, the TV programme within this time period are not non-encrypted state, then record and generate a recorded file and be stored in movable storage device；When playing, after only the content of TV program in this time period being decrypted, the content of TV program in this time period could be play, rather than the TV programme under encrypted state can be with normal play.
A kind of Set Top Box the most according to claim 1 records the method for program secondary encryption, it is characterised in that: the content that the encryption in step A2 is arranged includes arranging encrypted term, and described ciphering process and decrypting process are specific as follows:
The TV programme received are descrambled by Set Top Box, before starting recording TV program, the encrypted term of these TV programme is set for being encrypted the content of TV program started within the time set from recording, when the TV programme of the encrypted term exceeding setting are non-encrypted state, then record and generate a recorded file and be stored in movable storage device；When playing, after only the content of TV program in this time limit being decrypted, the content of TV program in this time limit could be play, rather than the TV programme under encrypted state can be with normal play.
A kind of Set Top Box the most according to claim 1 records the method for program secondary encryption, it is characterised in that: described movable storage device is USB flash disk, hard disk, SD card or CD.
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| CN201610167656.1A CN105828186B (en) | 2016-03-23 | 2016-03-23 | A kind of set-top box recording secondary encrypted method of program |
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| CN201610167656.1A CN105828186B (en) | 2016-03-23 | 2016-03-23 | A kind of set-top box recording secondary encrypted method of program |
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| WO2018205512A1 (en) * | 2017-05-10 | 2018-11-15 | 深圳创维数字技术有限公司 | Information encryption and decryption method, set-top box, system, and storage medium |
| CN108377413A (en) * | 2018-04-18 | 2018-08-07 | 深圳佳力拓科技有限公司 | It is a kind of to support while the set-top-box system and method for three road performance recordings |
| CN109286837A (en) * | 2018-10-10 | 2019-01-29 | 四川长虹电器股份有限公司 | The system and method for programme replay is recorded in a kind of control |
| CN111698080A (en) * | 2019-03-14 | 2020-09-22 | 西安诺瓦电子科技有限公司 | Program file exporting and importing method and device and multimedia playing box |
| CN111698080B (en) * | 2019-03-14 | 2024-03-15 | 西安诺瓦星云科技股份有限公司 | Program file export and import method and device and multimedia playing box |
| CN112073660A (en) * | 2020-09-15 | 2020-12-11 | 深圳Tcl数字技术有限公司 | TLV data generation method, TLV data reading method, intelligent device and storage medium |
| CN112073660B (en) * | 2020-09-15 | 2023-03-10 | 深圳Tcl数字技术有限公司 | TLV data generation method, TLV data reading method, intelligent device and storage medium |
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