CN105828186B - A kind of set-top box recording secondary encrypted method of program - Google Patents
A kind of set-top box recording secondary encrypted method of program Download PDFInfo
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- CN105828186B CN105828186B CN201610167656.1A CN201610167656A CN105828186B CN 105828186 B CN105828186 B CN 105828186B CN 201610167656 A CN201610167656 A CN 201610167656A CN 105828186 B CN105828186 B CN 105828186B
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- top box
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- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 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
-
- 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 kind of set-top box recording secondary encrypted method of program, which includes：A1, set-top box receive TV programme and descramble；After setting is encrypted in A2, user, one or more in the content for voluntarily select encryption to be arranged according to the content of encryption setting are configured, by encrypting setting to the secondary encryption of TV programme progress after descrambling；A3, secondary encrypted TV programme are recorded, and generates a recorded file and is stored in movable storage device；The decrypting process includes：B1, a selected set-top box and a CA cards, click under movable storage device and play recorded file, judge whether recorded file matches decryption, if so, playing recorded file；If it is not, then stopping playing recorded file.The encryption mechanism and algorithm of the present invention, keeps encryption operability strong, meets operator and customer demand, improves user experience.
Description
Technical field
The present invention relates to set-top box technique fields more particularly to a kind of set-top box to record the secondary encrypted method of program.
Background technology
Currently, with the development of DTV, top box of digital machine each corner in the world it is expanded with it is universal.Fortune
Battalion quotient is descrambled to being sent to set-top box, set-top box after TV programme one-time pad encryption after receiving TV programme, and user could see
See the TV programme.As top box of digital machine function is constantly perfect, DTV STB, which has to record and watch, playbacks section
Purpose function.So secondary encryption system comes into being.System can be recorded, descrambled to scrambling or unscrambled program,
Secondary encryption, storage, with realize recorded program can only in the case that with record the decryption that is consistent of grade and could play.
Currently, set-top box on the market is not various enough to the encryption for recording program.Sometimes only using random number into
The simple encryption of row, or encrypting shooting file is not removed, operator's program can be caused by such pirate recordings in this way, be then passed to
On the net, the loss of copyright, pirate row are caused.
Invention content
The technical problem to be solved in the present invention is to provide a kind of set-top box and records the secondary encrypted method of program, can be with
Realize that recorded program can enter and could play in the set-top box and current CA card insertions currently recorded well, Ke Yishi
Polymorphic type, the secondary encrypted purpose of multi-grade now are carried out to the program recorded.
The invention is realized in this way：
A kind of set-top box recording secondary encrypted method of program, including ciphering process and decrypting process；
The ciphering process includes the following steps：
Step A1, set-top box receives TV programme and is descrambled；
Step A2, it after setting is encrypted in user, is voluntarily selected in the content that encryption is arranged according to the content of encryption setting
It is one or more be configured, secondary encryption is carried out to the TV programme after descrambling by encrypting setting；
Step A3, secondary encrypted TV programme are recorded, and generates a recorded file and is stored in movable storage device；
The decrypting process includes the following steps：
Step B1, a selected set-top box and a CA cards, click under the movable storage device and play the recorded file,
Judge whether the recorded file matches decryption, if so, playing the recorded file；If it is not, then stopping playing the recorded file.
Further, the content of the encryption setting in the step A2 includes setting secret grade, and setting secret grade is 0
Grade, 1 grade, 2 grades or 3 grades；
The ciphering process and decrypting process are specific as follows：
When secret grade is 0 grade, set-top box is descrambled and is recorded to the TV programme received, is generated one and is recorded text
Part is simultaneously stored in movable storage device, does not do any encryption to the recorded file in recording process；When playing, make
The recorded file can be played with the set-top box of arbitrary ID number and the CA cards of the arbitrary CA card numbers of insertion or not slotting CA cards；
When secret grade is 1 grade, set-top box is descrambled and is recorded to the TV programme received, is arranged between the time
Every the unique ID number of set-top box being inserted into as key within the corresponding time in recording process, to after to descrambling
TV programme carry out secondary encryption, generate a recorded file and are stored in movable storage device；It is unique using this when playing
The set-top box of ID number and the CA cards for being inserted into arbitrary CA card numbers could play the recorded file；
When secret grade is 2 grades, set-top box is descrambled and is recorded to the TV programme received, is arranged between the time
Every the unique ID number of set-top box and CA card numbers being inserted into as key within the corresponding time in recording process, to right
TV programme after descrambling carry out secondary encryption, generate a recorded file and are stored in movable storage device；When playing, only
The recorded file could be played using the set-top box of the unique ID number with the CA cards for being inserted into the CA card numbers by having；
When secret grade is 3 grades, set-top box is descrambled and is recorded to the TV programme received, is arranged between the time
Every using the unique ID number of set-top box, CA card numbers and unique encryption information as key within the corresponding time in recording process
It is inserted into, is set to the secondary encryption of TV programme progress after descrambling, generate a recorded file and be stored in mobile storage
In standby；When playing, the set-top box of the unique ID number is only used, the CA cards of the CA card numbers is inserted into and inputs unique encryption
Information could play the recorded file.
Further, unique encryption information is by program names, performance recording time started and a random number
What combination was formed.
Further, the content of the encryption setting in step A2 includes that setting movable storage device is encrypted, described encrypted
Journey and decrypting process are specific as follows：
Set-top box is descrambled and is recorded to the TV programme received, and key is written to movable storage device, is being recorded
TV programme after being descrambled by the key pair of write-in during system carry out secondary encryption, generate a recorded file and are stored in shifting
In dynamic storage device；Play when, set-top box verify the write-in key whether meet it is that the key Unified Algorithm obtains as a result,
If satisfied, then playing the recorded file；If not satisfied, not playing the recorded file then.
Further, the content of the encryption setting in step A2 includes that password, the ciphering process and solution are recorded in setting
Close process is specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the TV programme are arranged
Recording password, then record and generate a recorded file and be stored in movable storage device；When playing, corresponding record is inputted
Password processed could play the recorded file.
Further, the content of the encryption setting in step A2 includes setting encryption times, the ciphering process and solution
Close process is specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the TV programme are arranged
Encryption times for the content of TV program of the period to be encrypted, not the TV programme within the period be it is non-plus
Close state, then records and generates a recorded file and be stored in movable storage device；When playing, only in the period
Content of TV program be decrypted after, the electricity under the content of TV program rather than encrypted state in the period could be played
It can be with normal play depending on program.
Further, the content of the encryption setting in step A2 includes setting encrypted term, the ciphering process and solution
Close process is specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the TV programme are arranged
Encrypted term be used for being encrypted to the content of TV program in the time of setting since recording, when more than setting plus
The TV programme in close time limit are non-encrypted state, then record and generate a recorded file and are stored in movable storage device；
When broadcasting, after only the content of TV program in the time limit is decrypted, the content of TV program in the time limit could be played,
Rather than the TV programme under encrypted state can be with normal play.
Further, the movable storage device is USB flash disk, hard disk, SD card or CD.
The invention has the advantages that：The present invention by a variety of encryption mechanisms and Encryption Algorithm, can meet operator and
Client becomes more to recording the secondary encrypted demand of program, encryption type, makes to have more operability to the encryption for recording program, full
Sufficient operator and customer demand improve user experience.
Description of the drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is that a kind of set-top box of the present invention records the secondary encrypted method execution flow chart of program.
Fig. 2 is the method execution flow chart that a kind of set-top box of the present invention records program decryption.
Specific implementation mode
To make the present invention be clearer and more comprehensible, now with a preferred embodiment, and attached drawing is coordinated to be described in detail below.
As depicted in figs. 1 and 2, a kind of set-top box of the invention records the secondary encrypted method of program, including ciphering process
And decrypting process；
The ciphering process includes the following steps：
Step A1, set-top box receives TV programme and is descrambled；
Step A2, set-top box menu is equipped with the encryption setting page, and user logs in the encryption setting page and is encrypted and sets
Set, according to encryption setting content voluntarily select encryption be arranged content in it is one or more be configured, by encrypt set
It sets and secondary encryption is carried out to the TV programme after descrambling；
Step A3, secondary encrypted TV programme are recorded, and generates a recorded file and is stored in movable storage device,
The movable storage device is USB flash disk, hard disk, SD card or CD；
The decrypting process includes the following steps：
Step B1, a selected set-top box and a CA cards (i.e. CMMB mobile TVs CA decryption cards, for CMMB mobile TV ends
In end equipment, for part to the terminal device in the encrypted cities CMMB), it is clicked under the movable storage device described in playing
Recorded file, judges whether the recorded file matches decryption, if so, playing the recorded file；It is somebody's turn to do if it is not, then stopping playing
Recorded file.
Further, the content of the encryption setting in the step A2 includes setting secret grade, and setting secret grade is 0
Grade, 1 grade, 2 grades or 3 grades；Set-top box acquiescence can be that operator sets a lowest class, and the choosing of the lowest class is less than on menu
Item will be graying, can not be selected, ensure that operator can freely set the height of TV programme permission to be protected in this way；
The ciphering process and decrypting process are specific as follows：
When secret grade is 0 grade (no encryption), set-top box is descrambled and is recorded to the TV programme received, raw
It at a recorded file and is stored in movable storage device, does not do any encryption to the recorded file in recording process；
When playing, the record can be played using the set-top box of arbitrary ID number and the CA cards of the arbitrary CA card numbers of insertion or not slotting CA cards
File processed；
When secret grade is 1 grade, set-top box is descrambled and is recorded to the TV programme received, is arranged between the time
Every the unique ID number of set-top box being inserted into as key within the corresponding time in recording process, to after to descrambling
TV programme carry out secondary encryption, generate a recorded file and are stored in movable storage device；It is unique using this when playing
The set-top box of ID number and the CA cards for being inserted into arbitrary CA card numbers could play the recorded file；
When secret grade is 2 grades, set-top box is descrambled and is recorded to the TV programme received, is arranged between the time
Every the unique ID number of set-top box and CA card numbers being inserted into as key within the corresponding time in recording process, to right
TV programme after descrambling carry out secondary encryption, generate a recorded file and are stored in movable storage device；When playing, only
The recorded file could be played using the set-top box of the unique ID number with the CA cards for being inserted into the CA card numbers by having；
When secret grade is 3 grades, set-top box is descrambled and is recorded to the TV programme received, is arranged between the time
Every using the unique ID number of set-top box, CA card numbers and unique encryption information as key within the corresponding time in recording process
It is inserted into, is set to the secondary encryption of TV programme progress after descrambling, generate a recorded file and be stored in mobile storage
In standby；When playing, the set-top box of the unique ID number is only used, the CA cards of the CA card numbers is inserted into and inputs unique encryption
Information could play the recorded file；Specifically, unique encryption information is to pass through program when starting to record program
Name, performance recording time started and a random number, which combine, to be formed；
Further, the content of the encryption setting in step A2 includes that setting movable storage device is encrypted, described encrypted
Journey and decrypting process are specific as follows：
Set-top box is descrambled and is recorded to the TV programme received, and key is written to movable storage device, is being recorded
TV programme after being descrambled by the key pair of write-in during system carry out secondary encryption, generate a recorded file and are stored in shifting
In dynamic storage device；Play when, set-top box verify the write-in key whether meet it is that the key Unified Algorithm obtains as a result,
If satisfied, then playing the recorded file；If not satisfied, not playing the recorded file then.
Further, the content of the encryption setting in step A2 includes that password, the ciphering process and solution are recorded in setting
Close process is specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the TV programme are arranged
Recording password, then record and generate a recorded file and be stored in movable storage device；When playing, corresponding record is inputted
Password processed could play the recorded file.
Further, the content of the encryption setting in step A2 includes setting encryption times, the ciphering process and solution
Close process is specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the TV programme are arranged
Encryption times for the content of TV program of the period to be encrypted, not the TV programme within the period be it is non-plus
Close state, then records and generates a recorded file and be stored in movable storage device；When playing, only in the period
Content of TV program be decrypted after, the electricity under the content of TV program rather than encrypted state in the period could be played
It can be with normal play depending on program.
Further, the content of the encryption setting in step A2 includes setting encrypted term, the ciphering process and solution
Close process is specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the TV programme are arranged
Encrypted term be used for being encrypted to the content of TV program in the time of setting since recording, when more than setting plus
The TV programme in close time limit are non-encrypted state, then record and generate a recorded file and are stored in movable storage device；
When broadcasting, after only the content of TV program in the time limit is decrypted, the content of TV program in the time limit could be played,
Rather than the TV programme under encrypted state can be with normal play.
In conclusion the invention has the advantages that：
The present invention is by a variety of encryption mechanisms and Encryption Algorithm, and can meeting operator and client, program is secondary to be added to recording
Close demand, encryption type become more, make to have more operability to the encryption for recording program, meet operator and customer demand,
Improve user experience.
Although specific embodiments of the present invention have been described above, those familiar with the art should manage
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field modification and variation equivalent made by the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (7)
1. a kind of set-top box records the secondary encrypted method of program, it is characterised in that：Including ciphering process and decrypting process；
The ciphering process includes the following steps：
Step A1, set-top box receives TV programme and is descrambled；
Step A2, after setting is encrypted in user, one in the content for voluntarily selecting encryption to be arranged according to the content of encryption setting
Kind or it is a variety of be configured, secondary encryption is carried out to the TV programme after descrambling by encrypting setting；Encrypt the content packet of setting
Setting secret grade is included, setting secret grade is 0 grade, 1 grade, 2 grades or 3 grades；The ciphering process and decrypting process are specific
It is as follows：
When secret grade is 0 grade, set-top box is descrambled and is recorded to the TV programme received, generates a recorded file simultaneously
It is stored in movable storage device, does not do any encryption to the recorded file in recording process；Play when, using appoint
The set-top box for ID number of anticipating and the CA cards of the arbitrary CA card numbers of insertion or not slotting CA cards can play the recorded file；
When secret grade is 1 grade, set-top box is descrambled and is recorded to the TV programme received, and a time interval is arranged,
The unique ID number of set-top box is inserted into as key within the corresponding time in recording process, to the TV after descrambling
Program carries out secondary encryption, generates a recorded file and is stored in movable storage device；When playing, the unique ID number is used
Set-top box and be inserted into the CA cards of arbitrary CA card numbers and could play the recorded file；
When secret grade is 2 grades, set-top box is descrambled and is recorded to the TV programme received, and a time interval is arranged,
The unique ID number of set-top box and CA card numbers are inserted into as key within the corresponding time in recording process, to descrambling
TV programme afterwards carry out secondary encryption, generate a recorded file and are stored in movable storage device；When playing, only make
With the set-top box of the unique ID number recorded file could be played with the CA cards for being inserted into the CA card numbers；
When secret grade is 3 grades, set-top box is descrambled and is recorded to the TV programme received, and a time interval is arranged,
It is carried out the unique ID number of set-top box, CA card numbers and unique encryption information as key within the corresponding time in recording process
It is inserted into, to carry out secondary encryption to the TV programme after descrambling, generates a recorded file and be stored in movable storage device；
When playing, the set-top box of the unique ID number is only used, the CA cards of the CA card numbers is inserted into and inputs unique encryption information
The recorded file could be played；
Step A3, secondary encrypted TV programme are recorded, and generates a recorded file and is stored in movable storage device；
The decrypting process includes the following steps：
Step B1, a selected set-top box and a CA cards, click under the movable storage device and play the recorded file, judge
Whether the recorded file matches decryption, if so, playing the recorded file；If it is not, then stopping playing the recorded file.
2. a kind of set-top box according to claim 1 records the secondary encrypted method of program, it is characterised in that：It is described unique
Encryption information combine and to be formed by program names, performance recording time started and a random number.
3. a kind of set-top box according to claim 1 records the secondary encrypted method of program, it is characterised in that：In step A2
Encryption setting content include setting movable storage device encrypt, the ciphering process and decrypting process are specific as follows：
Set-top box is descrambled and is recorded to the TV programme received, and key is written to movable storage device, is being recorded
TV programme after being descrambled by the key pair of write-in in journey carry out secondary encryption, generate a recorded file and are stored in movement and deposit
It stores up in equipment；When playing, if whether the key that set-top box verifies the write-in meets that the key Unified Algorithm obtains as a result, expiring
Foot, then play the recorded file；If not satisfied, not playing the recorded file then.
4. a kind of set-top box according to claim 1 records the secondary encrypted method of program, it is characterised in that：In step A2
Encryption setting content include setting record password, the ciphering process and decrypting process are specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, the record of the TV programme is arranged
Password processed, then records and generates a recorded file and be stored in movable storage device；When playing, it is close to input corresponding recording
Code could play the recorded file.
5. a kind of set-top box according to claim 1 records the secondary encrypted method of program, it is characterised in that：In step A2
Encryption setting content include setting encryption times, the ciphering process and decrypting process are specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, adding for the TV programme is arranged
The close time, the TV programme within the period were not non-encrypted shape for the content of TV program of the period to be encrypted
State, then records and generates a recorded file and be stored in movable storage device；When playing, only to the electricity in the period
After being decrypted depending on programme content, the TV Festival under the content of TV program rather than encrypted state in the period could be played
Mesh can be with normal play.
6. a kind of set-top box according to claim 1 records the secondary encrypted method of program, it is characterised in that：In step A2
Encryption setting content include setting encrypted term, the ciphering process and decrypting process are specific as follows：
Set-top box descrambles the TV programme received, and before starting recording TV program, adding for the TV programme is arranged
Since the close time limit be used for being encrypted to the content of TV program in the time of setting recording, when the encryption phase more than setting
The TV programme of limit are non-encrypted state, then record and generate a recorded file and are stored in movable storage device；It is playing
When, after only the content of TV program in the time limit is decrypted, the content of TV program in the time limit could be played, rather than
TV programme under encrypted state can be with normal play.
7. a kind of set-top box according to claim 1 records the secondary encrypted method of program, it is characterised in that：The movement
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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| CN106454488B (en) * | 2016-10-09 | 2019-06-11 | 深圳创维数字技术有限公司 | A kind of performance recording based on set-top box and back method and system |
| CN107277579A (en) * | 2017-05-10 | 2017-10-20 | 深圳创维数字技术有限公司 | Information encipher-decipher method and set top box |
| 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 |
| 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 |
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| CN102111651A (en) * | 2009-12-24 | 2011-06-29 | 北京视博数字电视科技有限公司 | Method for recording program, method for broadcasting program, front end and terminal equipment |
| CN102158759A (en) * | 2011-04-22 | 2011-08-17 | 深圳创维数字技术股份有限公司 | Program recording method, playback method of recorded program and set top box |
| CN102281468A (en) * | 2011-08-09 | 2011-12-14 | 深圳市九洲电器有限公司 | Method and device for recording and playing personal video record, and set-top box |
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