CN102215433A - User authorization method and safety device - Google Patents
User authorization method and safety device Download PDFInfo
- Publication number
- CN102215433A CN102215433A CN201010141205.3A CN201010141205A CN102215433A CN 102215433 A CN102215433 A CN 102215433A CN 201010141205 A CN201010141205 A CN 201010141205A CN 102215433 A CN102215433 A CN 102215433A
- Authority
- CN
- China
- Prior art keywords
- product
- authorization
- message
- safety device
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013475 authorization Methods 0.000 title claims abstract description 205
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000000047 product Substances 0.000 claims description 232
- 239000006227 byproduct Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention provides a user authorization method and a safety device. The method comprises the following steps: a safety device receives information including present time, product identification and authorization control information of a control word encrypted by a product key sent by a front end, wherein authorization information of the preauthorized product is written in the safety device in advance, and the authorization information of the preauthorized product includes the product identification and an authorization duration; whether the product corresponding to the product identification in the authorization control information is a preauthorized product can be judged; if the judging result is a preauthorized product, the safety device changes the preauthorized product to an authorized product according to the present time of the authorization control information and the authorization duration of the preauthorized product, and changes the preauthorized product to an authorized product when receiving the authorization control information sent by the font end. Therefore, the processing loads of the front end and terminal equipments of a CAS (control automatic system) can be reduced and network resources can be saved.
Description
Technical field
The present invention is about the digital television techniques field, especially in regard to a kind of subscriber entitlement method and safety device.
Background technology
At present, along with radio data system towards digitlization, industrialized development, the content of TV program that the user watches for self is paid becomes the inevitable of this development, and to realize that the user is the purpose that the content of TV program self watched is paid, the primary technical problem that solves is the user of TV reception effectively to be managed.
Condition receiving system (CAS:Conditional Access System) is exactly one of the mode of implementing in the existing broadcasting and television network that the user is effectively managed that is used for, and makes authorized user can normally watch program by the CAS technology.
The front end of broadcasting and television network (HE:Head End) carries out scrambling to the television programme data that will send to the user to be handled, and then the program that the user can watch authorized, and the authorization data after the authorisation process also will carry out after the encryption by Network Transmission to user side.
After user side receives TV programme, have only validated user could the authorization data of encryption be decrypted, obtain corresponding authorization data, the use authority data are carried out descrambling to the TV programme of scrambling processing then, with normal TV reception; And illegal user or normally do not receive the user of self authorization data owing to can't carry out descrambling to the TV programme that scrambling is handled, therefore, normal TV reception, like this, just reached the purpose that user's TV reception content is controlled and managed, and then ordered about the user and pay for the own content of TV program of being watched.
The inventor finds that in realizing process of the present invention the defective of prior art is: existing C AS front end need be authorized the TV programme that the user can watch, generate authorization data, and to authorization data encrypt the back be issued to user side by network, need terminal equipment that the authorization data of this encryption is decrypted authorized data in terminal, utilize this authorization data that scrambled program stream is handled with normal TV reception.Therefore, increased the processing burden of CAS front end and terminal equipment; And authorization data is issued to terminal equipment by network, has taken a large amount of Internet resources.
Summary of the invention
The embodiment of the invention provides a kind of subscriber entitlement method and safety device, by in safety device, writing the authorization message of pre-authorization product in advance, and when receiving the Entitlement Control Message of front end transmission, with this pre-authorization Product Renewal is authorizing product, do not need the CAS front end to generate authorization data and authorization data encrypted to realize subscriber authorisation, alleviate the processing burden of CAS front end and terminal equipment, and saved Internet resources.
The embodiment of the invention provides a kind of subscriber entitlement method, and this method comprises:
The Entitlement Control Message of the control word that the safety device receiving front-end sends comprises current time, product mark, encrypted by product key, write the authorization message of pre-authorization product in the described safety device in advance, the authorization message of described pre-authorization product comprises the product mark of pre-authorization product and authorizes duration;
Whether the product of judging product mark correspondence in the described Entitlement Control Message is the pre-authorization product;
If judged result is the pre-authorization product, then described safety device is authorizing product according to the mandate duration of current time in the described Entitlement Control Message and described pre-authorization product with described pre-authorization Product Renewal.
The embodiment of the invention also provides a kind of safety device, and this safety device comprises:
Receiving element, the Entitlement Control Message of the control word that comprises current time, product mark, encrypts by product key that is used for that receiving front-end sends;
Memory cell is used to store the authorization message of the pre-authorization product that writes in advance, and the authorization message of described pre-authorization product comprises the product mark of pre-authorization product and authorizes duration; And being used to store the authorization message of authorizing product, the authorization message of described authorizing product comprises the product mark and the corresponding time started and the concluding time of authorizing product;
Judging unit is used for judging according to the authorization message of described cell stores whether the product of the Entitlement Control Message product mark correspondence that described receiving element receives is the pre-authorization product;
Updating block is used for when the judged result of described judging unit is the pre-authorization product, is authorizing product according to the mandate duration of current time in the described Entitlement Control Message and described pre-authorization product with described pre-authorization Product Renewal.
Embodiment of the invention beneficial effect is: by write the authorization message of pre-authorization product in advance in safety device, and when receiving the Entitlement Control Message of front end transmission, with this pre-authorization Product Renewal is authorizing product, do not need the CAS front end to generate authorization data and authorization data encrypted to realize subscriber authorisation, alleviate the processing burden of CAS front end and terminal equipment, and saved Internet resources.
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 limitation of the invention.In the accompanying drawings:
Fig. 1 is the subscriber entitlement method flow chart of the embodiment of the invention 1;
Fig. 2 is the subscriber entitlement method flow chart of the embodiment of the invention 2;
Fig. 3 is the method flow diagram of step 204 in the embodiment of the invention 2;
Fig. 4 is that the safety device of the embodiment of the invention 3 constitutes schematic diagram;
Fig. 5 is that the safety device of the embodiment of the invention 4 constitutes schematic diagram;
Fig. 6 is the formation schematic diagram of judging unit among Fig. 5.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in 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 a limitation of the invention.
Below in conjunction with accompanying drawing embodiments of the present invention are elaborated.
Embodiment 1
The embodiment of the invention provides a kind of subscriber entitlement method, and as shown in Figure 1, this method comprises:
In the present embodiment, this method also can comprise step 104, if judged result is not for the time in step 102, then this safety device is handled accordingly to this Entitlement Control Message.For example, can search the product key of this product mark correspondence earlier, utilize the product key that finds that this Entitlement Control Message is decrypted processing then, to obtain descrambled control words (CW), make set-top box carry out descrambling to the program of scrambling according to this descrambled control words, make spectators watch this program, this process and prior art are similar, repeat no more herein.
In the present embodiment, this Entitlement Control Message can adopt ECM (Entitlement ControlMessage) packet.
In the present embodiment, this safety device can be smart card.And during CA manufacturer hair fastener, can specify some program is the pre-authorization program, and the authorization message of this pre-authorization product is write smart card.For example, the product mark (ID) of three pre-authorization product correspondences is respectively: 59997,59998,59999, and the corresponding mandate duration of this product mark (ID) is respectively: 15 days, 30 days, 90 days.
In addition, the also configurable production number identical of CAS front end with the pre-authorization product mark, corresponding product mark also correspondingly is: 59997,59998,59999.Like this, when front end sends when comprising the ECM packet of this product mark to terminal equipment, can judge whether the product of product mark correspondence among this ECM is the pre-authorization product according to this product mark and the authorization message that is stored in the safety device.
By the foregoing description as can be known, by in safety device, writing the authorization message of pre-authorization product in advance, and when receiving the Entitlement Control Message of front end transmission, with this pre-authorization Product Renewal is authorizing product, do not need the CAS front end to generate authorization data and authorization data encrypted to realize subscriber authorisation, alleviate the processing burden of CAS front end and terminal equipment, and saved Internet resources.
Embodiment 2
The embodiment of the invention provides a kind of subscriber entitlement method, below is that smart card is that example describes with the safety device.
As shown in Figure 2, this method comprises:
Wherein, write the authorization message of pre-authorization product in the time of can be by CA manufacturer hair fastener, for example, the product mark (ID) that writes three pre-authorization product correspondences is respectively: 59997,59998,59999, and the corresponding mandate duration of this product mark (ID) is respectively: 15 days, 30 days, 90 days;
This authorization message also can comprise the expired time of this smart card except the product mark (ID) and mandate duration (T) that comprise the pre-authorization product;
In addition, this authorization message also can comprise the product key of this pre-authorization product correspondence, like this except comprising above-mentioned information, can utilize this product key that Entitlement Control Message is decrypted processing, to obtain descrambled control words, like this, do not need front end to generate authorization data and this authorization data encrypted to be sent to terminal equipment, and terminal equipment does not need decryption processing just can obtain this product key, therefore, alleviate the processing burden of front end and terminal, saved Internet resources.
For example, select the product mark 59997,59998,59999 of pre-authorization product to be configured in the corresponding program, like this, corresponding product be designated 59997,59998,59999.
Wherein, detailed process cooperates Fig. 3 to describe below.
That is concluding time=current time+mandate duration T.
Like this, through after the step 205 and 206, this pre-authorization product may be updated as authorizing product, and authorization message also is updated to the authorization message that comprises time started and concluding time; The foregoing description is that the concluding time is set earlier, and then the time started is set, and like this, can guarantee safety of data; In addition, also can be provided with earlier the time started, after the concluding time is set, can be provided with according to actual needs.
By the foregoing description as can be known, by receiving the ECM packet of pre-authorization product first, with the pre-authorization Product Renewal is authorizing product, and be set start and end time, can guarantee neatly that the user watches the ageing of program first, guarantee that effectively this user watches program in the term of validity of this pre-authorization product.If in safety device, write time started and concluding time at first, then after the user obtains safety device, do not use and cause to guarantee that the user watches the ageing of program first, and can not guarantee that the user watches program in the term of validity of this pre-authorization product.
For example, can utilize the product key that obtains in advance or utilize the product key that writes in advance in the card that this ECM packet is decrypted processing, to obtain descrambled control words, and this descrambled control words offered terminal equipment, make terminal equipment carry out descrambling to the program stream of scrambling, so that the terminal user watches this program according to this control word.
In step 201, the authorization message of this pre-authorization product also can comprise the product key of this pre-authorization product correspondence, like this, judged result is when being in step 204, this method also can comprise: the product key of the pre-authorization product correspondence that this smart card utilization writes is in advance handled this ECM packet, to obtain control word, makes terminal equipment utilize this control word that the scrambled program stream that receives is carried out descrambling, this process and prior art are similar, repeat no more herein.
In the above-described embodiments, step 204 can realize in the following way, as shown in Figure 3, comprising:
Wherein, this authorization message can comprise the authorization message of authorizing product, also can comprise the authorization message of pre-authorization product;
If the product mark in the ECM packet is 59997, then judge whether also comprise product mark 59997 in the authorization message.
Step 302 is if the judged result of step 301, is then further judged time started and the concluding time that whether comprises this product in the authorization message of this product mark correspondence for being; If judged result is that then execution in step 303, otherwise execution in step 304;
Wherein, owing to include only the expired time limit of card in the authorization message of pre-authorization product and authorize duration, therefore, in judging the authorization message of this pre-authorization product, safety device do not comprise time started and concluding time, and comprise and authorize duration or also comprise when expired and can determine that this product is the pre-authorization product in limited time.
Step 303 is if the judged result of step 302 determines then that for not the product of product mark correspondence in this ECM packet is the pre-authorization product.
By the foregoing description as can be known, by in safety device, writing the authorization message of pre-authorization product in advance, and when receiving the Entitlement Control Message of front end transmission, with this pre-authorization Product Renewal is authorizing product, do not need the CAS front end to generate authorization data and authorization data encrypted to realize subscriber authorisation, alleviate the processing burden of CAS front end and terminal equipment, and saved Internet resources; And when the pre-authorization Product Renewal is authorizing product, just determine the start and end time that this authorizes program, like this, can guarantee flexibly that the user watches the ageing of program first and guarantees in the term of validity of this authorizing product, to watch program.
Embodiment 3
The embodiment of the invention provides a kind of safety device, and as shown in Figure 4, this safety device comprises: receiving element 401, memory cell 402, judging unit 403 and updating block 404; Wherein,
Receiving element 401, the Entitlement Control Message of the control word that comprises current time, product mark, encrypts by product key that is used for that receiving front-end sends;
Memory cell 402 is used to store the authorization message of the pre-authorization product that writes in advance, and the authorization message of this pre-authorization product comprises the product mark of pre-authorization product and authorizes duration; And being used to store the authorization message of authorizing product, the authorization message of this authorizing product comprises the product mark and the corresponding time started and the concluding time of authorizing product;
Judging unit 403 is used for judging according to the authorization message that memory cell 402 stores whether the product of the Entitlement Control Message product mark correspondence that this receiving element receives is the pre-authorization product;
Updating block 404 is used for when the judged result of judging unit 403 is the pre-authorization product, is authorizing product according to the mandate duration of the current time in this Entitlement Control Message and this pre-authorization product with this pre-authorization Product Renewal.
In the present embodiment, this safety device can be the smart card of digital cable customers, can be used with set-top box.Wherein, can be when CA manufacturer hair fastener, specifying some program is the pre-authorization program, and the authorization message of pre-authorization product is write smart card, deposits in the memory cell 402.For example, the product mark (ID) of three pre-authorization product correspondences is respectively: 59997,59998,59999, and the corresponding mandate duration of this product mark (ID) is respectively: 15 days, 30 days, 90 days.
In the present embodiment, this smart card also can comprise first processing unit 405, is used in the judged result of judging unit 403 this Entitlement Control Message being handled accordingly for not the time.For example, can search the product key of this product mark correspondence earlier, utilize the product key that finds that this Entitlement Control Message is decrypted processing then, to obtain descrambled control words (CW), make set-top box carry out descrambling to the program of scrambling, make spectators watch this program according to this descrambled control words.
In the present embodiment, this Entitlement Control Message can adopt ECM (Entitlement ControlMessage) packet.
In addition, the also configurable production number identical of CAS front end with the pre-authorization product mark, corresponding mandate sign also correspondingly is: 59997,59998,59999.Like this, when front end sends when comprising the ECM packet of this product mark to terminal equipment, can judge whether the product of product mark correspondence among this ECM is authorizing product according to this product mark and the authorization message that is stored in the safety device.
By the foregoing description as can be known, by in safety device, writing the authorization message of pre-authorization product in advance, and when receiving the Entitlement Control Message of front end transmission, with this pre-authorization Product Renewal is authorizing product, do not need the CAS front end to generate authorization data and authorization data encrypted to realize subscriber authorisation, alleviate the processing burden of CAS front end and terminal equipment, and saved Internet resources.
Embodiment 4
The embodiment of the invention provides a kind of safety device, and as shown in Figure 5, this safety device comprises: receiving element 501, memory cell 502, judging unit 503, updating block 504 and first processing unit 505, its effect is similar to Example 3, repeats no more herein.
In the present embodiment, the authorization message of this pre-authorization product also can comprise the product key of this pre-authorization product correspondence; Like this, as shown in Figure 5, this safety device also comprises: second processing unit 506, be used in the judged result of judging unit 503 when being, utilize the product key of the pre-authorization product correspondence that writes in advance that this Entitlement Control Message is handled, to obtain control word, make terminal equipment utilize this control word that the scrambled program stream that receives is carried out descrambling.
In the present embodiment, updating block 504 comprises:
Concluding time determining unit (not shown) is used for determining that the concluding time of this pre-authorization product is this current time and this mandate duration sum; Time started determining unit (not shown) is used for determining that the time started of this pre-authorization product is this current time.Wherein, this updating block 504 can be provided with the concluding time earlier, after the time started is set, to guarantee safety of data; In addition, also can be provided with earlier the time started, after the concluding time is set.
In the present embodiment, as shown in Figure 6, judging unit 503 comprises:
Sign judging unit 601 is used for judging whether the product mark of this Entitlement Control Message is contained in the authorization message;
Determining unit 603 is used in the judged result of this time judging unit 602 for not the time, and the product of determining product mark correspondence in this Entitlement Control Message is the pre-authorization product.
Aforesaid embodiment, because the principle of this safety device problem is similar to method, so the enforcement of this safety device can repeat part and repeat no more referring to the enforcement of method.
By the foregoing description as can be known, by in safety device, writing the authorization message of pre-authorization product in advance, and when receiving the Entitlement Control Message of front end transmission, with this pre-authorization Product Renewal is authorizing product, do not need the CAS front end to generate authorization data and authorization data encrypted to realize subscriber authorisation, alleviate the processing burden of CAS front end and terminal equipment, and saved Internet resources; And by being that authorizing product can guarantee flexibly that the user watches the ageing of program first and guarantees watch program in the term of validity of this authorizing product with the pre-authorization Product Renewal.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, can comprise all or part of step in the foregoing description method, described storage medium can comprise: ROM, RAM, disk, CD etc.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a subscriber entitlement method is characterized in that, described method comprises:
The Entitlement Control Message of the control word that the safety device receiving front-end sends comprises current time, product mark, encrypted by product key, write the authorization message of pre-authorization product in the described safety device in advance, the authorization message of described pre-authorization product comprises the product mark of pre-authorization product and authorizes duration;
Whether the product of judging product mark correspondence in the described Entitlement Control Message is the pre-authorization product;
If judged result is the pre-authorization product, then described safety device is authorizing product according to the mandate duration of current time in the described Entitlement Control Message and described pre-authorization product with described pre-authorization Product Renewal.
2. method according to claim 1 is characterized in that, described safety device is authorizing product according to the mandate duration of current time in the described Entitlement Control Message and described pre-authorization product with described pre-authorization Product Renewal, comprising:
The concluding time of described pre-authorization product is made as described current time and described mandate duration sum;
The time started of described pre-authorization product is made as the described current time.
3. method according to claim 2 is characterized in that, the concluding time is set earlier, then is set the time started.
4. method according to claim 1 is characterized in that, the authorization message of described pre-authorization product also comprises the product key of described pre-authorization product correspondence;
If judged result is the pre-authorization product, described method also comprises:
The product key of the pre-authorization product correspondence that described safety device utilization writes is in advance handled described Entitlement Control Message, to obtain control word, makes terminal equipment utilize described control word that the scrambled program stream that receives is carried out descrambling.
5. method according to claim 1 is characterized in that, describedly judges whether the product of product mark correspondence in the described Entitlement Control Message is the pre-authorization product, comprising:
Judge whether the product mark in the described Entitlement Control Message is contained in the authorization message;
If judged result is for being, whether comprise time started and concluding time in the then further authorization message of judging described product mark correspondence;
If judged result is not for comprising, determine that then the product of product mark correspondence in the described Entitlement Control Message is the pre-authorization product.
6. a safety device is characterized in that, described safety device comprises:
Receiving element, the Entitlement Control Message of the control word that comprises current time, product mark, encrypts by product key that is used for that receiving front-end sends;
Memory cell is used to store the authorization message of the pre-authorization product that writes in advance, and the authorization message of described pre-authorization product comprises the product mark of pre-authorization product and authorizes duration; And being used to store the authorization message of authorizing product, the authorization message of described authorizing product comprises the product mark and the corresponding time started and the concluding time of authorizing product;
Judging unit is used for judging according to the authorization message of described cell stores whether the product of the Entitlement Control Message product mark correspondence that described receiving element receives is the pre-authorization product;
Updating block is used for when the judged result of described judging unit is the pre-authorization product, is authorizing product according to the mandate duration of current time in the described Entitlement Control Message and described pre-authorization product with described pre-authorization Product Renewal.
7. safety device according to claim 6 is characterized in that, described updating block comprises:
The concluding time determining unit is used for determining that the concluding time of described pre-authorization product is described current time and described mandate duration sum;
The time started determining unit is used for determining that the time started of described pre-authorization product is the described current time.
8. safety device according to claim 6 is characterized in that, the authorization message of described pre-authorization product also comprises the product key of described pre-authorization product correspondence;
Described safety device also comprises:
Processing unit, be used in the judged result of described judging unit when being, utilize the product key of the pre-authorization product correspondence that writes in advance that described Entitlement Control Message is handled,, make terminal equipment utilize described control word that the scrambled program stream that receives is carried out descrambling to obtain control word.
9. safety device according to claim 6 is characterized in that, described judging unit comprises:
The sign judging unit is used for judging whether the product mark of described Entitlement Control Message is contained in the authorization message;
The time judging unit is used in the judged result of described sign judging unit when being, further judges in the authorization message of described product mark correspondence whether comprise time started and concluding time;
Determining unit is used in the judged result of described time judging unit for not the time, and the product of determining product mark correspondence in the described Entitlement Control Message is the pre-authorization product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010141205.3A CN102215433B (en) | 2010-04-06 | 2010-04-06 | User authorization method and safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010141205.3A CN102215433B (en) | 2010-04-06 | 2010-04-06 | User authorization method and safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102215433A true CN102215433A (en) | 2011-10-12 |
| CN102215433B CN102215433B (en) | 2013-06-05 |
Family
ID=44746520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010141205.3A Active CN102215433B (en) | 2010-04-06 | 2010-04-06 | User authorization method and safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102215433B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868918A (en) * | 2012-09-27 | 2013-01-09 | 北京视博数字电视科技有限公司 | User authorization method and user authorization system |
| CN105681840A (en) * | 2016-01-07 | 2016-06-15 | 深圳Tcl数字技术有限公司 | Television program authority control method and system, television terminal and CA server |
| CN111404269A (en) * | 2020-03-16 | 2020-07-10 | 宁波三星医疗电气股份有限公司 | Port-based information interaction method and device and power terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070230700A1 (en) * | 2006-03-31 | 2007-10-04 | Irdeto Access B.V. | Method and device for authorising conditional access |
| CN101247508A (en) * | 2008-03-07 | 2008-08-20 | 北京握奇数据系统有限公司 | Method for terminal implementing service authorization in conditioned receiving system |
| CN101674453A (en) * | 2008-09-09 | 2010-03-17 | 北京视博数字电视科技有限公司 | Program information processing method, safety device and receiving terminal |
| CN201430640Y (en) * | 2009-06-23 | 2010-03-24 | 北京视博数字电视科技有限公司 | Terminal device |
-
2010
- 2010-04-06 CN CN201010141205.3A patent/CN102215433B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070230700A1 (en) * | 2006-03-31 | 2007-10-04 | Irdeto Access B.V. | Method and device for authorising conditional access |
| CN101247508A (en) * | 2008-03-07 | 2008-08-20 | 北京握奇数据系统有限公司 | Method for terminal implementing service authorization in conditioned receiving system |
| CN101674453A (en) * | 2008-09-09 | 2010-03-17 | 北京视博数字电视科技有限公司 | Program information processing method, safety device and receiving terminal |
| CN201430640Y (en) * | 2009-06-23 | 2010-03-24 | 北京视博数字电视科技有限公司 | Terminal device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868918A (en) * | 2012-09-27 | 2013-01-09 | 北京视博数字电视科技有限公司 | User authorization method and user authorization system |
| CN105681840A (en) * | 2016-01-07 | 2016-06-15 | 深圳Tcl数字技术有限公司 | Television program authority control method and system, television terminal and CA server |
| CN105681840B (en) * | 2016-01-07 | 2019-10-29 | 深圳Tcl数字技术有限公司 | Method and system, the television terminal, CA server of TV programme permission control |
| CN111404269A (en) * | 2020-03-16 | 2020-07-10 | 宁波三星医疗电气股份有限公司 | Port-based information interaction method and device and power terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102215433B (en) | 2013-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6912513B1 (en) | Copy-protecting management using a user scrambling key | |
| KR101364462B1 (en) | Method and device for authorising conditional access | |
| US9392318B2 (en) | Receiver device with multiple decryption modes | |
| US20070294178A1 (en) | Securing media content using interchangeable encryption key | |
| AU2770397A (en) | Smartcard for use with a receiver of encrypted broadcast signals, and receiver | |
| JP2001500351A (en) | Device for requesting individual use authentication for reproduced encrypted information signal | |
| CN1890968B (en) | Broadcast conditional access system with impulse purchase capability in a two-way network | |
| CN103024475A (en) | Method and system of recording and authorization playing of television programs | |
| CN101924907B (en) | Method for realizing condition receiving, terminal equipment and front end thereof | |
| KR101315799B1 (en) | Security system based on conditional access system and method for controlling conditional access service | |
| CN102215433B (en) | User authorization method and safety device | |
| KR20050090399A (en) | Method for access control in digital pay television | |
| CN101370076A (en) | Method for implementing set-card separation based on USB interface | |
| JP4521392B2 (en) | Pay television systems associated with decoders and smart cards, rights revocation methods in such systems, and messages sent to such decoders | |
| JP2004533796A (en) | Method and apparatus for allowing unconfirmed viewing time on addressable pay television | |
| KR20100011915A (en) | Monitoring usage of encrypted broadcast services | |
| CN1753487B (en) | Control system of watching digital TV and its method | |
| CN101068303A (en) | Hardware enciphering method used for wired television system set-top box | |
| WO2000031956A2 (en) | A method and apparatus for accessing stored digital programs | |
| CN101350910A (en) | Method for separating machine and card of digital television receive terminal | |
| KR101605822B1 (en) | Integrated processor device of remote entitlement processing module | |
| CN201639710U (en) | Whole network maintenance device, digital television front-end system and terminal equipment | |
| CN101583013B (en) | Method of real-time downloading CAS core algorithm | |
| CN111385605A (en) | Control method, system and related equipment for digital television signal encryption transmission | |
| CN101340528A (en) | Machine-card separation method of digital television receiving terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |