CN101860717B - Viewing control method and device thereof - Google Patents
Viewing control method and device thereof Download PDFInfo
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- CN101860717B CN101860717B CN200910081572.6A CN200910081572A CN101860717B CN 101860717 B CN101860717 B CN 101860717B CN 200910081572 A CN200910081572 A CN 200910081572A CN 101860717 B CN101860717 B CN 101860717B
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- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000013475 authorization Methods 0.000 abstract description 8
- 239000000047 product Substances 0.000 description 203
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- 238000012797 qualification Methods 0.000 description 3
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Abstract
The invention provides a viewing control method and a device thereof. The method comprises: receiving authorization control information sent by a front end, wherein the authorization control information comprises at least two product identifications corresponding to a program, a descrambling control character encrypted by a session key and a session key encrypted by a product key; if determining that at least one of products corresponding to at least two product identifications is authorized, utilizing the product key corresponding to a pre-obtained authorized product to process the encrypted session key to obtain the session key; and processing the encrypted descrambling control character by the session key to obtain the descrambling control character. The invention uses the front end to set a plurality of products under one program in a playbill to ensure that users can integrally order the programs; and if the terminal equipment obtains any one product authorization, the terminal equipment can process the received ECM packet so as to watch programs corresponding to the product identification.
Description
Technical field
The present invention relates to digital television techniques, particularly a kind of televiewing control method and device thereof.
Background technology
As everyone knows, condition receiving system CAS is meant and is used for controlling the system that the user receives broadcast service, realizes the paid service of broadcast system usually through empowerment management.
Conditional access system front-end is packaged into product to some channels; If packing back user orders this product; Then need condition receiving system to authorize, this authorization message generally is issued to STB through Entitlement Management Message (EMM:Entitlement Management Message).
At present, front end is configured in a program in the product bag usually, and is issued to user terminal through Entitlement Control Message (ECM:Entitlement Control Message).When the user ordered this product, front end need be authorized the product of ordering.
But the inventor finds the defective of prior art and is in realizing process of the present invention: the user need order collecting the program of seeing in advance one by one; When ordering a plurality of program; Perhaps need repeatedly oral or Advise By Wire operator, make troubles thereby order program to the user; And need network to issue EMM packet and ECM packet respectively, need occupy a large amount of bandwidth to terminal equipment.In addition, receive a plurality of product bags of order when the terminal after, just can watch a plurality of programs of having ordered after the product bag handled respectively.
Summary of the invention
The object of the present invention is to provide a kind of televiewing control method and device thereof.In programme, under a program a plurality of products are set through front end, make the user as long as order the corresponding any product of program, terminal equipment all can be handled the ECM packet that receives, to watch the corresponding program of this product mark.
For realizing above-mentioned purpose; The embodiment of the invention provides a kind of televiewing control method; This method comprises: the Entitlement Control Message that receiving front-end sends, this Entitlement Control Message comprise at least two corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key; If confirm that at least one product is authorized in the corresponding product of these at least two product marks, then utilize the corresponding product key of authorizing product that obtains in advance that encrypted session key is handled, to obtain this session key; Utilize this session key that encrypted descrambling control word is handled, to obtain this descrambled control words.
For realizing above-mentioned purpose, the embodiment of the invention provides a kind of televiewing control method, and this method comprises: configuration programme information, this programme information comprise the product that at least one program of configuration is corresponding with this program; Wherein, this at least one program comprises at least two products; Perhaps when this program be one when above, all programs comprise same product; Generate Entitlement Control Message according to this programme information, this Entitlement Control Message comprises one or more corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key; This Entitlement Control Message is sent.
For realizing above-mentioned purpose, the embodiment of the invention provides a kind of acceptance control device, and this device comprises:
The Entitlement Control Message receiving element; This Entitlement Control Message receiving element is used for the Entitlement Control Message that receiving front-end sends, and this Entitlement Control Message comprises at least two corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key;
The Entitlement Control Message processing unit; If confirming at least one product in the corresponding product of these at least two product marks authorizes; Then this Entitlement Control Message processing unit is used to utilize the corresponding product key of authorizing product that obtains in advance that encrypted session key is handled; Obtaining this session key, and utilize this session key that encrypted descrambling control word is handled, to obtain this descrambled control words.
For realizing above-mentioned purpose, the embodiment of the invention provides a kind of acceptance control device, and this device comprises:
The program dispensing unit, this program dispensing unit is used to dispose programme information, and this programme information comprises the product that at least one program of configuration is corresponding with this program; Wherein, this at least one program comprises at least two products; Perhaps when this program be one when above, all programs comprise same product; The Entitlement Control Message generation unit; This Entitlement Control Message generation unit is used for generating Entitlement Control Message according to this programme information, and this Entitlement Control Message comprises one or more corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key;
The Entitlement Control Message transmitting element, this Entitlement Control Message transmitting element is used for this Entitlement Control Message is sent.
For realizing above-mentioned purpose, the embodiment of the invention provides a kind of terminal equipment, and this terminal equipment comprises any described device of claim in the claim 7 to 11.
For realizing above-mentioned purpose, the embodiment of the invention provides a kind of program collocation method, and this method comprises:
According to programme configuration programme information, said programme information comprises at least one program and the corresponding product of said program of configuration; Wherein, said at least one program comprises at least two products; Perhaps when said program be one when above, all programs comprise same product;
Store said programme information.
For realizing above-mentioned purpose, the embodiment of the invention provides a kind of program inking device, and this device comprises:
Program dispensing unit, said program dispensing unit are used for according to programme configuration programme information, and said programme information comprises at least one program and the corresponding product of said program of configuration; Wherein, said at least one program comprises at least two products; Perhaps when said program be one when above, all programs comprise same product;
Memory cell, said memory cell is used to store said programme information.
The beneficial effect of embodiment of the present invention is; In programme, under a program a plurality of products are set through front end; Making the user carry out integral body to program orders; If this terminal equipment has obtained the mandate of any product, this terminal equipment all can be handled the ECM packet that receives, to watch the corresponding program of this product mark.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute qualification of the present invention.In the accompanying drawings:
Fig. 1 is the televiewing control method flow chart of the embodiment of the invention 1;
Fig. 2 is the televiewing control method flow chart of the embodiment of the invention 2;
Fig. 3 is a configuration programme information sketch map in the embodiment of the invention 2;
Fig. 4 is the televiewing control method flow chart of the embodiment of the invention 3;
Fig. 5 is that the acceptance control device of the embodiment of the invention 4 constitutes sketch map;
Fig. 6 is that the acceptance control device of the embodiment of the invention 5 constitutes sketch map;
Fig. 7 is that the acceptance control device of the embodiment of the invention 6 constitutes sketch map.
Embodiment
For making the object of the invention, technical scheme and advantage clearer,, the present invention is explained further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.
Embodiment 1
The embodiment of the invention provides a kind of televiewing control method; As shown in Figure 1; This method comprises: the Entitlement Control Message that receiving front-end sends, this Entitlement Control Message comprise at least two corresponding product marks of program, by the descrambled control words of session key, by product key encrypted session key (seeing step 101); Authorize if confirm at least one product in the corresponding product of these at least two product marks, then utilize the corresponding product key of authorizing product that obtains in advance that encrypted session key is handled, to obtain this session key; Utilize this session key that encrypted descrambling control word is handled, to obtain this descrambled control words (seeing step 102).
Like this, terminal equipment this descrambled control words capable of using is carried out descrambling to the program stream that receives, to watch this program.
In the present embodiment, this Entitlement Control Message is the ECM packet.
In the present embodiment, this Entitlement Control Message also can comprise operator's sign.
In the present embodiment, this front end utilizes the corresponding product key (Product Key) of this product mark (Product ID) that this session key (Session Key) is encrypted.
In the present embodiment; This session key (Session Key) is through predetermined AES; Like the des encryption algorithm random number is encrypted and produced, this key is to be used for encrypting this descrambled control words, is difficult for being cracked to guarantee this descrambled control words CW; But be not limited thereto, also can adopt other AES to obtain this session key.
Can know by the foregoing description; In programme, under a program a plurality of products are set by front end; Making the user carry out integral body to program orders; If this terminal device has obtained the mandate of any one product; This terminal device all can be handled the ECM packet that receives, to watch the corresponding program of this product sign; Can be provided with program according to actual needs, but set-up mode flexibly and this program of integrated marketing, order and watch program to bring great convenience to the user.
The embodiment of the invention provides a kind of televiewing control method, and is as shown in Figure 2, and this method comprises: configuration programme information, this programme information comprise the product that at least one program of configuration is corresponding with this program; Wherein, said at least one program comprises at least two products; Perhaps when said program be one when above, all programs comprise same product (seeing step 201); Generate Entitlement Control Message according to this programme information, this Entitlement Control Message comprises one or more product marks, by the product key encrypted session key, by the descrambled control words (seeing step 202) of session key; This Entitlement Control Message is sent (seeing step 203).
In the present embodiment, can under the program in programme one or more products be set according to actual needs.Like this, when an above product is set, as long as any product is authorized, but then equal this program of normal viewing.
In addition, also can under a plurality of programs in programme identical product be set.Like this, need only the user to this product mandate, all programs that this product then is set all can be watched.
For example, in programme file (XML), program is set, as program 1, program 2, program 3 are set.Wherein, this program identification can comprise program sequence number (Service ID) and channel designation (Name).
Wherein: Service ID: expression program sequence number; Name: expression channel designation.ProductID: the corresponding product mark of expression program.
From the above, top programme has disposed three programs, Service ID=" 1 ", Service ID=" 2 " and Service ID=" 3 ".Be divided into 3 product bags, promptly product bag A, product bag B and product bag C are 1001,1002 and 1003 expressions with product mark ProductID respectively, and be as shown in Figure 3.
As shown in Figure 3; Program 1 (Service ID=" 1 ") corresponding product bag A; When the mandate of this product mark 1001 (the corresponding product key of this product mark is promptly arranged), terminal equipment could be handled relevant information, to obtain descrambled control words; So that these product mark 1001 corresponding programs are carried out descrambling, to play this program.Corresponding 2 the product bags (product bag A and product bag B) of program 2 (Service ID=" 2 "); As long as the mandate of wherein any product mark (1001,1002) is arranged; Terminal equipment just can be handled relevant information; To obtain descrambled control words, so that these product mark 1001,1002 corresponding programs are carried out descrambling, to play this program.Corresponding 3 the product bags (product bag A, product bag B and product bag C) of program 3 (Service ID=" 2 "); As long as the mandate of wherein any product mark (1001,1002 and 1003) is arranged; Terminal equipment just can be handled relevant information; To obtain descrambled control words, so that this product mark 1001,1002 and 1003 corresponding programs are carried out descrambling, to play this program.
Therefore, in three programs that disposed, all disposed identical product 1001 for each program 1,2,3; And a plurality of products have been disposed for program 2, program 3; As long as terminal equipment obtains the mandate of product mark 1001, then can handle, to obtain descrambled control words to relevant information; So that these product mark 1001 corresponding programs are carried out descrambling, to play this program 1,2,3.If terminal equipment obtains the mandate of product mark 1002, in like manner, but broadcast program 2,3.
In the present embodiment; In step 202; Generate Entitlement Control Message according to this programme information; Be that front end utilizes the corresponding product key (Product Key) of each product mark (Product ID) that session key (Session Key) is encrypted, utilize this session key (Session Key) that descrambled control words is encrypted, the session key after the encryption (Session Key) sends to the user with descrambled control words through Entitlement Control Message packet (ECM packet).
In the present embodiment, this ECM packet also can comprise information such as operator's numbering except comprising above-mentioned information.As shown in table 1, be ECM data packet format (for example, for program 1):
Table 1
| Grammer | Note |
| ECM_Data(){ | |
| OperatorID | Operator's numbering |
| …… | |
| CW | Use the descrambled control words after Session Key encrypts |
| …… | |
| For() | |
| { | |
| Product?ID | |
| Session?Key | Use the Session Key after the corresponding product key of Product ID is encrypted |
| } | |
| …… | |
| } |
Wherein, for program 3, its different Product ID is in the different circulation of for circulation, and each circulation all comprises a Product ID and corresponding Session Key.
Can know by the foregoing description; Front end can be provided with a plurality of products under a program in programme; Making the user carry out integral body to program orders; If this terminal device has obtained the mandate of any one product; This terminal device all can be handled the ECM packet that receives, to watch the corresponding program of this product sign; In addition, front end also can be provided with identical product under a plurality of programs, makes the user to watch that all are provided with the program of this product by a product is authorized, and brings great convenience for user and operator.Wherein, this program can be provided with based on actual needs, but set-up mode flexibly and this program of integrated marketing, orders and watches program to bring great convenience to the user.
Embodiment 3
The embodiment of the invention provides a kind of televiewing control method, and is as shown in Figure 4, and this method can comprise:
At front end:
In the present embodiment, for example, the programme information of configuration is:
Wherein, under a program, disposed 3 products, the sign of these 3 products is respectively 1001,1002 and 1003.
Step 402 generates the ECM packet according to this programme information.
In the present embodiment; Front end utilizes the corresponding product key (Product Key) of product mark Product ID that session key (Session Key) is encrypted; Utilize this session key (Session Key) that descrambled control words is encrypted; With the session key (Session Key) after encrypting and descrambled control words and program identification and product mark packing, promptly the ECM packet is as shown in table 1.
At the terminal:
Step 405 is analyzed this ECM packet, obtaining this product mark, and encrypted session key and descrambled control words;
Whether step 406 has the corresponding product of any product mark to obtain the authorization.
In the present embodiment, can judge one by one according to certain sequence.For example, judge at first whether these product mark 1001 corresponding programs obtain the authorization, and promptly judge whether to exist the product key of these product mark 1001 correspondences, if exist, then no longer whether follow-up product mark 1002 and 1003 are obtained the authorization and judge.If do not exist, then need continue to judge whether to exist the corresponding product key of product mark 1002, the rest may be inferred, in finding this product mark 1001,1002 and 1003 till the product key of any correspondence.
In step 406, if judged result is for being, as there is the corresponding product key of this product mark 1001 in step 407, then utilizes the product key of this product mark correspondence that encrypted session key is handled, to obtain this session key.
Step 408 utilizes this session key that encrypted descrambling control word is handled, to obtain this descrambled control words.
Step 409 utilizes descrambled control words that the program stream that receives is carried out descrambling.Like this, as long as obtained the mandate of any product of product mark 1001,1002,1003 correspondences, just can be to watching this program.
In addition, in the present embodiment, also can comprise at front end: the request of ordering program according to the user generates Entitlement Management Message, and this Entitlement Management Message comprises product mark that ordered program is corresponding and the product key of being encrypted by user key; This Entitlement Management Message is sent.Wherein, this Entitlement Management Message can be the EMM packet.In the present embodiment, when the product mark of ordered program is a plurality of in this EMM packet, the corresponding respectively product key separately of this product mark.
Correspondingly, also can comprise at the terminal: the EMM packet that receiving front-end sends, utilize the user key that prestores that this EMM packet is deciphered, to obtain the corresponding product key of this product mark; Store the corresponding product key of this product mark.Therefore, after obtaining product key, this product key decrypted session key capable of using.
Can know by the foregoing description; In programme, under a program a plurality of products are set by front end; Making the user carry out integral body to program orders; If this terminal device has obtained the mandate of any one product; This terminal device all can be handled the ECM packet that receives, to watch the corresponding program of this product sign; Can be provided with program according to actual needs, but set-up mode flexibly and this program of integrated marketing, order and watch program to bring great convenience to the user.
In addition, when the front-end configuration programme information, when a plurality of program; All programs can comprise a same product, include product mark 1001 like embodiment 2 described programs 1,2,3, like this; As long as obtain the mandate of this product 1001, all can watch program 1,2,3, like this; Do not need the user just repeatedly to authorize and to watch different programs, bring great convenience for user and operator.
Embodiment 4
The embodiment of the invention provides a kind of acceptance control device, and is as shown in Figure 5, and this device comprises Entitlement Control Message receiving element 501 and Entitlement Control Message processing unit 502; Wherein, This Entitlement Control Message receiving element 501 is used for the Entitlement Control Message that receiving front-end sends, and this Entitlement Control Message comprises at least two corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key; If confirm that at least one product is authorized in the corresponding product of these at least two product marks; Then this Entitlement Control Message processing unit 502 is used to utilize the corresponding product key of authorizing product that obtains in advance that encrypted session key is handled; To obtain this session key; And utilize this session key that encrypted descrambling control word is handled, to obtain this descrambled control words.
In the present embodiment, this Entitlement Control Message is the ECM packet.
In the present embodiment, this device can use separately, also can with the subscriber terminal equipment use that combines, can use according to actual needs.The course of work of this device such as embodiment 1 are said, repeat no more here.
Can know by the foregoing description; When front end is provided with a plurality of products under a program in programme; When this terminal equipment had obtained the mandate of any product, this terminal equipment all can be handled the ECM packet that receives, to watch the corresponding program of this product mark.
Embodiment 5
The embodiment of the invention provides a kind of acceptance control device, and is as shown in Figure 6, and this device comprises Entitlement Control Message receiving element 501 and Entitlement Control Message processing unit 502, and its effect is similar with embodiment 5, repeats no more here.
As shown in Figure 6; This device also can comprise judging unit 601; Be used for judging whether any product in the corresponding product of this ECM packet product mark obtains the authorization, if judged result is for being then to notify ECM processing unit 502 pairs of these encrypted session key, encrypted descrambling control word to handle; Its judgment mode such as embodiment 3 are said, repeat no more here.
As shown in Figure 6, this device also comprises descrambling unit 602 and broadcast unit 603; Wherein, this descrambling unit 602 is used for utilizing this descrambled control words of acquisition that the corresponding program of this product mark that this Entitlement Control Message comprises is carried out descrambling; This broadcast unit 603 is used to play this program behind the descrambling.
In addition, as shown in Figure 6, this device also comprises Entitlement Management Message receiving element (EMM receiving element) 604 and Entitlement Management Message processing unit (EMM processing unit) 605; Wherein, This EMM receiving element 604 is used for the EMM packet that receiving front-end sends; This EMM packet comprises product mark that ordered program is corresponding and the product key of being encrypted by user key, wherein, can comprise a plurality of product marks and corresponding respectively product key in this EMM packet; This EMM processing unit 605 is used to utilize the user key that prestores that this EMM packet is deciphered, to obtain the corresponding product key of this product mark.
In addition, this device also comprises memory cell 606, and this memory cell 606 is used to store this user key and product key.
In the present embodiment, this device can use separately, with can with the subscriber terminal equipment use that combines, can use according to actual needs.The course of work of this device such as embodiment 3 are said, repeat no more here.
Can know by the foregoing description; When front end is provided with a plurality of products under a program in programme; When this terminal equipment had obtained the mandate of any product, this terminal equipment all can be handled the ECM packet that receives, to watch the corresponding program of this product mark.And through utilizing session key that descrambled control words is encrypted, be difficult for being cracked, improve fail safe to guarantee this descrambled control words CW.
Embodiment 6
The embodiment of the invention provides a kind of acceptance control device, and is as shown in Figure 7, and this device comprises program dispensing unit 701, Entitlement Control Message generation unit (ECM generation unit) 702 and Entitlement Control Message transmitting element (ECM transmitting element) 703; Wherein, this program dispensing unit 701 is used to dispose programme information, and this programme information comprises the product that at least one program of configuration is corresponding with this program; Wherein, this at least one program comprises at least two products; Perhaps when this program be one when above, all programs comprise same product; This Entitlement Control Message generation unit 702 is used for generating Entitlement Control Message according to this programme information, and this Entitlement Control Message comprises one or more corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key; This Entitlement Control Message transmitting element 703 is used for this Entitlement Control Message is sent.
As shown in Figure 7, this device also comprises Entitlement Management Message generation unit (EMM generation unit) 704 and Entitlement Management Message transmitting element (EMM transmitting element) 705; Wherein, this EMM generation unit 704 is used for ordering according to the user request generation EMM packet of program, and this EMM packet comprises product mark that ordered program is corresponding and the product key of being encrypted by user key; This EMM transmitting element 705 is used for this EMM packet is sent to user terminal.Wherein, can comprise a plurality of product marks and corresponding respectively product key in this EMM packet.
In the present embodiment, this ECM packet and EMM packet can send through multiplexer, and be similar with prior art, repeats no more here.
In the present embodiment, this device can use separately, also can with the use that combines of conditional access system front-end equipment, can use according to actual needs.The course of work of this device such as embodiment 3 are said, repeat no more here.
Embodiment 7
The embodiment of the invention also provides a kind of terminal equipment, and this terminal equipment can comprise embodiment 1,2 described devices, and this terminal equipment can be receiving terminal for digital television etc.
Can know by the foregoing description; When front end is provided with a plurality of products under a program in programme; Making the user carry out integral body to program orders; If this terminal device has obtained the mandate of any one product; This terminal device all can be handled the ECM packet that receives, to watch the corresponding program of this product sign; Perhaps identical product is configured to a plurality of programs, like this, makes that the user only needs can watch a plurality of programs to a product mandate; And can be provided with program according to actual needs, but set-up mode flexibly and this program of integrated marketing, both saved bandwidth, order to the user again and watch program to bring great convenience.
Embodiment 8
The embodiment of the invention provides a kind of program collocation method, and this method comprises:
According to programme configuration programme information, this programme information comprises the product that at least one program of configuration is corresponding with this program; Wherein, this at least one program comprises at least two products; Perhaps when this program be one when above, all programs comprise same product; Store this programme information.
The user in the present embodiment, can a plurality of programs in the programme be disposed identical product down, as long as just can watch different a plurality of programs, like embodiment 3 described programs 1,2,3 in the mandate of this product of front end acquisition.Therefore, because the user only need obtain the mandate of this product, thereby bring great convenience for the management of order from user and operator.
In addition, also can in programme, dispose a plurality of products under a program, then the user only needs authorize any product in this product, can watch this program.
From the above, through above-mentioned multiple configuration mode flexibly, bring great convenience for the management of order from user and operator.
Embodiment 9
The embodiment of the invention provides a kind of program inking device, and this device comprises:
Program dispensing unit, this program dispensing unit are used for according to programme configuration programme information, and this programme information comprises the product that at least one program of configuration is corresponding with this program; Wherein, this at least one program comprises at least two products; Perhaps when this program be one when above, all programs comprise same product; Memory cell is used to store this programme information.
From the above, can carry out multiple configuration flexibly to programme information, bring great convenience for the management of order from user and operator through this device.
Above-described embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a televiewing control method is characterized in that, said method comprises:
The Entitlement Control Message that receiving front-end sends, said Entitlement Control Message comprise at least two corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key;
If confirm that at least one product is authorized in the corresponding product of said at least two product marks, then utilize the corresponding product key of authorizing product that obtains in advance that encrypted session key is handled, to obtain said session key;
Utilize said session key that encrypted descrambling control word is handled, to obtain said descrambled control words.
2. method according to claim 1 is characterized in that, said method also comprises:
Utilize the said descrambled control words that obtains that the corresponding program of said product mark that comprises in the said Entitlement Control Message is carried out descrambling;
Said program behind the broadcast descrambling.
3. method according to claim 1 is characterized in that, before the Entitlement Control Message that receiving front-end sends, said method also comprises:
The Entitlement Management Message that receiving front-end sends, said Entitlement Management Message comprise product mark that ordered program is corresponding and the product key of being encrypted by user key;
The user key that utilization prestores is deciphered the product key of encrypting in the said Entitlement Management Message, to obtain the corresponding product key of said product mark.
4. method according to claim 3 is characterized in that, said method also comprises: store said user key and product key.
5. a televiewing control method is characterized in that, said method comprises:
Configuration programme information, said programme information comprise at least one program and the corresponding product of said program of configuration; Wherein, said at least one program comprises at least two products; Perhaps when said program be one when above, all programs comprise same product;
Generate Entitlement Control Message according to said programme information, said Entitlement Control Message comprises one or more corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key;
Said Entitlement Control Message is sent.
6. method according to claim 5 is characterized in that, said method also comprises:
The request of ordering program according to the user generates Entitlement Management Message, and said Entitlement Management Message comprises product mark that ordered program is corresponding and the product key of being encrypted by user key;
Said Entitlement Management Message is sent.
7. an acceptance control device is characterized in that, said device comprises:
The Entitlement Control Message receiving element; Said Entitlement Control Message receiving element is used for the Entitlement Control Message that receiving front-end sends, and said Entitlement Control Message comprises at least two corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key;
The Entitlement Control Message processing unit; If confirm that at least one product is authorized in the corresponding product of said at least two product marks; Then said Entitlement Control Message processing unit is used to utilize the corresponding product key of authorizing product that obtains in advance that encrypted session key is handled; Obtaining said session key, and utilize said session key that encrypted descrambling control word is handled, to obtain said descrambled control words.
8. device according to claim 7 is characterized in that, said device also comprises:
Descrambling unit, said descrambling unit are used for utilizing the said descrambled control words of acquisition that the corresponding program of said product mark that said Entitlement Control Message comprises is carried out descrambling;
Broadcast unit, said broadcast unit are used to play the said program behind the descrambling.
9. device according to claim 7 is characterized in that, said device also comprises:
Entitlement Management Message receiving element, said Entitlement Management Message receiving element are used for the Entitlement Management Message that receiving front-end sends, and said Entitlement Management Message comprises product mark that ordered program is corresponding and the product key of being encrypted by user key;
The product key that Entitlement Management Message processing unit, said Entitlement Management Message processing unit are used for utilizing the user key that prestores that said Entitlement Management Message is encrypted is deciphered, to obtain the corresponding product key of said product mark.
10. device according to claim 9 is characterized in that said device also comprises memory cell, and said memory cell is used to store said user key and product key.
11. device according to claim 7 is characterized in that, said device also comprises judging unit, and said judging unit is used for judging whether at least one product of the product that said at least two product marks are corresponding authorizes.
12. an acceptance control device is characterized in that, said device comprises:
The program dispensing unit, said program dispensing unit is used to dispose programme information, and said programme information comprises at least one program and the corresponding product of said program of configuration; Wherein, said at least one program comprises at least two products; Perhaps when said program be one when above, all programs comprise same product;
The Entitlement Control Message generation unit; Said Entitlement Control Message generation unit is used for generating Entitlement Control Message according to said programme information, and said Entitlement Control Message comprises one or more corresponding product marks of program, by the descrambled control words of session key, by the product key encrypted session key;
The Entitlement Control Message transmitting element, said Entitlement Control Message transmitting element is used for said Entitlement Control Message is sent.
13. device according to claim 12 is characterized in that, said device also comprises:
The Entitlement Management Message generation unit; Said Entitlement Management Message generation unit is used for ordering based on the user request generation Entitlement Management Message of program, and said Entitlement Management Message comprises product sign that ordered program is corresponding and the product key of being encrypted by user key;
Said Entitlement Management Message is sent.
14. a terminal equipment is characterized in that, said terminal equipment comprises any described device of claim in the claim 7 to 11.
Priority Applications (1)
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| CN1663265A (en) * | 2002-06-26 | 2005-08-31 | 皇家飞利浦电子股份有限公司 | Method and apparatus for finding and updating user group preferences in an entertainment system |
| CN1852416A (en) * | 2005-09-28 | 2006-10-25 | 华为技术有限公司 | Method and system for realizing combined authorization of enciphering system |
| US20070094300A1 (en) * | 2005-10-24 | 2007-04-26 | Emc Corp. | Virtual repository management |
| US20070230700A1 (en) * | 2006-03-31 | 2007-10-04 | Irdeto Access B.V. | Method and device for authorising conditional access |
| CN101242517A (en) * | 2008-03-05 | 2008-08-13 | 浪潮电子信息产业股份有限公司 | An user authorization method in digital TV condition receiving system |
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| CN1663265A (en) * | 2002-06-26 | 2005-08-31 | 皇家飞利浦电子股份有限公司 | Method and apparatus for finding and updating user group preferences in an entertainment system |
| CN1852416A (en) * | 2005-09-28 | 2006-10-25 | 华为技术有限公司 | Method and system for realizing combined authorization of enciphering system |
| US20070094300A1 (en) * | 2005-10-24 | 2007-04-26 | Emc Corp. | Virtual repository management |
| US20070230700A1 (en) * | 2006-03-31 | 2007-10-04 | Irdeto Access B.V. | Method and device for authorising conditional access |
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