CN101582729B - Method and system for acquiring service key, conditional access module and subscriber terminal - Google Patents
Method and system for acquiring service key, conditional access module and subscriber terminal Download PDFInfo
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- CN101582729B CN101582729B CN2009100853164A CN200910085316A CN101582729B CN 101582729 B CN101582729 B CN 101582729B CN 2009100853164 A CN2009100853164 A CN 2009100853164A CN 200910085316 A CN200910085316 A CN 200910085316A CN 101582729 B CN101582729 B CN 101582729B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method and a system for acquiring a service key. The method comprises the following steps: a subscriber terminal acquires authorization directing at the present type of service from the network terminal; the authorization is set based on the type of service; if the authorization is broadcasting authorization, the subscriber terminal receives an authorization key from the network terminal by means of broadcasting authorization; if the authorization is bidirectional authorization, the subscriber terminal receives the authorization key from the network terminal by means of bidirectional authorization; wherein, the authorization key is generated by the network terminal based on service information. The invention further provides a conditional access module and the subscriber terminal. In the invention, the subscriber terminal which has broadcasting authorization and bidirectional authorization combines the advantages of the two authorizations, satisfies the need ofdifferent subscribers flexibly, improves the subscriber authorization efficiency, promotes subscriber experience and saves resources and power dissipation.
Description
Technical field
The present invention relates to the data communication field of condition receiving system, particularly relate to a kind of service key obtaining method, system and a kind of user terminal and a kind of Conditional Access Module.
Background technology
It is exactly by effective means various service business to be implemented different protections that condition receives, and the user who buys corresponding mandate is controlled.For example for existing multiple charge operation, as pay TV, the immediate pricing TV, when VODs etc. need be seen the user, see that what channel authorizes.
In network terminal, video, audio frequency or data code flow at first will be upset data under the control of control word, carry out scrambler and encrypt, and these control words are also referred to as key.For the condition receiving system of broadcast mode mandate, business cipher key is encrypted the back through user key and is formed Entitlement Management Message (EMM:EntitlementManagement Message).For business datum, adopt secret key encryption by network terminal usually after, be sent to terminal through transmission network, be decrypted again according to Entitlement Management Message by user terminal then, with the business datum of obtaining the authorization, pay TV signal etc. for example.
Generally, EMM information can adopt the mode of data carousel to be pushed to user terminal.Data carousel is a kind of service that, once or repeatedly sends one group of identical data module with allowing server or certain application cycle.If a user terminal has missed the EMM information that this next round is broadcast,, then need by the time the moment of broadcasting next time when he wishes to visit once more wherein certain specific modules.What is more, when number of users was very big, the data volume that wheel is broadcast was surprising.According to preresearch estimates, when number of users reached up to ten million, the wheel of EMM was broadcast the cycle and can be reached 3 to 4 hours, so, if the user misses the EMM information that this next round is broadcast, just may need the long time to obtain the authorization once more.Therefore, user terminal can't in time be received the key information data when the specific key information of needs.
For example for the user who orders monthly payment mode business, business cipher key needs monthly to upgrade, and the user needs the corresponding key information data of extraction in the EMM information that every month regular trailing wheel broadcasts, and therefore, existing authorization method has reduced user's Experience Degree undoubtedly.
For broadcast type mobile phone television business management system (MBBMS:Mobile Broadcast Business Management System) by means of the China Mobile of the two-way authentication of telecommunication path, owing to adopt two-way authentication, can realize service authorization flexibly, and can guarantee the success of authorizing, yet require terminal must have return path, and realize the more broadcast authorized height of cost.
In a word, need the urgent technical problem that solves of those skilled in the art to be exactly at present: to invent a kind of simple and conditional access terminal implementation method relatively flexibly, can strengthen the mandate efficient of user terminal, and economize on resources and power consumption.
Summary of the invention
Technical problem to be solved by this invention provides a kind of service key obtaining method, system and a kind of user terminal and Conditional Access Module, a kind of simple and conditional access terminal implementation method relatively flexibly is provided, strengthened the mandate efficient of user terminal, and economized on resources and power consumption.
In order to address the above problem, embodiments of the invention provide a kind of service key obtaining method, may further comprise the steps: user terminal is known authorization at present type of service from network terminal; Described authorization is based on type of service and sets; If authorization is broadcast authorized, then user terminal adopts broadcast authorized mode to receive authorization key from network terminal; If authorization is a two-way authorization, then user terminal adopts the two-way authorization mode to receive authorization key from network terminal; Wherein, under broadcast authorized mode, when user terminal misses the authorization key of network terminal broadcasting, adopt the two-way authorization mode to receive described authorization key; Described authorization key is generated based on business information by network terminal.
Wherein in a preferred application scenarios, described business information is a TV programme.
Preferably, network terminal can adopt by following steps and set corresponding authorization: for content and broadcast time relatively-stationary business information, set to adopt broadcast authorized mode; For the relative unfixed business information of content, set the two-way authorization mode that adopts with broadcast time.
Preferably, described broadcast authorized mode specifically comprises: network terminal will authorize the time prior notice to give user terminal; User terminal is enabled broadcast authorized condition receiving and deciphering chip in the described mandate time, receives authorization key from network terminal.
Preferably, described two-way authorization mode specifically comprises: network terminal sends the two-way authorization address to user terminal before business information begins to play or in playing; User terminal is enabled two-way authorization condition receiving and deciphering chip, and is sent authorization requests by the duplex channel of user terminal to network terminal according to the two-way authorization address that receives; Network terminal sends to user terminal according to described authorization requests with authorization key.
According to another embodiment of the present invention, also disclose a kind of business cipher key and obtained system, comprise network terminal and user terminal, wherein,
Described network terminal comprises: the authorization key generation unit is used for generating authorization key according to business information; The authorization setup unit is used for setting corresponding authorization based on type of service;
Described user terminal comprises: judging unit is used for knowing authorization at present type of service from network terminal; Broadcast authorized receiving element is used to adopt broadcast authorized mode to receive authorization key from network terminal; The two-way authorization receiving element is used to adopt the two-way authorization mode to receive authorization key from network terminal; Wherein, when broadcast authorized receiving element misses the authorization key of network terminal broadcasting, trigger the two-way authorization receiving element.
Preferably, described network terminal also comprises mandate time transmitting element, is used under broadcast authorized mode, will authorize the time prior notice to give user terminal; Then, the broadcast authorized receiving element of described user terminal started in the described mandate time, adopted broadcast authorized mode to receive authorization key from network terminal.
Preferably, described network terminal also comprises the authorized address transmitting element, is used for before business information begins to play or broadcast, gives user terminal with the two-way authorization address notification; Then, the two-way authorization receiving element of described user terminal adopts the two-way authorization mode to receive authorization key from network terminal according to the two-way authorization address that receives.
According to another embodiment of the present invention, a kind of Conditional Access Module is also disclosed, be arranged in user terminal, comprising:
Judging unit is used for knowing authorization at present type of service from network terminal;
Broadcast authorized decrypting device is used to adopt broadcast authorized mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
The two-way authorization decrypting device is used to adopt the two-way authorization mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
Wherein, when broadcast authorized decrypting device is missed the authorization key of network terminal broadcasting, trigger the two-way authorization decrypting device.
Preferably, described Conditional Access Module can also comprise: authorize the time receiving element, be used under broadcast authorized mode, receive the mandate time that network terminal sends; When arriving, starts the described mandate time broadcast authorized decrypting device.
Preferably, described Conditional Access Module can also comprise: the authorized address receiving element, be used under the two-way authorization mode, and receive the two-way authorization address that network terminal sends; Described two-way authorization decrypting device sends authorization requests according to this two-way authorization address to network terminal, to obtain authorization key.
According to another embodiment of the present invention, a kind of user terminal is also disclosed, comprise the duplex channel that communicates with network terminal, and Conditional Access Module,
Described Conditional Access Module comprises: judging unit is used for knowing authorization at present type of service from network terminal; Broadcast authorized decrypting device is used to adopt broadcast authorized mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service; The two-way authorization decrypting device is used to adopt the two-way authorization mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service; Wherein, when broadcast authorized decrypting device is missed the authorization key of network terminal broadcasting, trigger the two-way authorization decrypting device.
Preferably, described Conditional Access Module is embedded among the subscriber terminal equipment structure, with the structure of user terminal formation one; Perhaps, described Conditional Access Module is connected with user terminal to separate the mode of pegging graft.
Compared with prior art, the present invention has the following advantages:
Among the present invention, for the user terminal that has broadcast authorized and two-way authorization simultaneously, a kind of acquisition methods, system and a kind of Conditional Access Module and user terminal of new business cipher key are proposed, can well be in conjunction with the advantage of two kinds of authorizations, and satisfy requirements of different users flexibly, improved the efficient of subscriber authorisation, promoted user's Experience Degree, and economized on resources and power consumption.
For relatively more fixing program of content and broadcast time, take broadcast authorized mode, user terminal only need obtain authorization key in the mandate time of appointment, and do not need to prepare at any time to accept authorization key, to reduce terminal processes, this mode relies on unidirectional broadcast network, less-restrictive.
Simultaneously, sudden more intense for more special, do not have the business of periodicity, take the two-way authorization mode, owing to adopt two-way authentication, service authorization flexibly can be realized, and the success of authorizing can be guaranteed.
Description of drawings
Fig. 1 is the flow chart of steps of the embodiment of a kind of service key obtaining method of the present invention;
Fig. 2 is the flow chart of steps of another embodiment of service key obtaining method of the present invention;
Fig. 3 is the structured flowchart that a kind of business cipher key of the present invention obtains the embodiment of system;
Fig. 4 is the structured flowchart of a kind of industry Conditional Access Module of the present invention embodiment.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, show the embodiment of a kind of service key obtaining method of the present invention, specifically can may further comprise the steps:
Step 101: network terminal generates authorization key according to business information; And set corresponding authorization based on type of service;
Usually, network terminal (for example, TV station) generates authorization key according to video, audio frequency or data code flow, under the control of authorization key, data is upset, and carries out scrambler and encrypts.The business information of the preferred embodiment of the present invention is a TV programme, promptly is that unit generates authorization key with the TV programme, and can sets different authorizations at different program categories, and for example, the employing that has is broadcast authorized, the employing two-way authorization that has.
Step 102: user terminal is known authorization at present type of service from network terminal;
If authorization is broadcast authorized, then execution in step 103; If authorization is a two-way authorization, then execution in step 104.
Need to prove, use user terminal of the present invention and have broadcast authorized condition receiving and deciphering function and two-way authorization condition receiving and deciphering function simultaneously, can support different authorizations; Certainly, for two-way authorization, user terminal also needs to have the duplex channel that can communicate to connect network terminal, for example, and the SIM/USIM card.Concrete, described user terminal can be mobile phone terminal, also can be digital TV set-top box.
In the preferred embodiment of the present invention, user terminal is specifically as follows China Mobile multimedia broadcasting (CMMB:China Mobile Multimedia Broadcasting) mobile phone.Described CMMB mobile phone is judged the key receive mode according to the TV programme of its required reception, for example for existing multiple charge operation, as pay TV, the immediate pricing TV, VOD etc., need when see the user, see the receive mode of the corresponding authorization key what channel selection network side is set.
In the embodiment of the invention, under the NAGRAVISION condition receiving system, the authorising conditional that the CMMB mobile phone is judged is to fix the content and the broadcast time of business information, broadcast as night news, described CMMB mobile phone has broadcast authorized condition receiving and deciphering chip simultaneously, and then described CMMB mobile phone judges that the condition of acceptance of authorization key is broadcast authorized condition.
In the another embodiment of the present invention, network terminal can adopt some following strategies, sets corresponding authorization at different types of service.Concrete, fixing for the content of business information and broadcast time, as night news radio hookup, TV play program of certain period or the like, then be set at broadcast authorized mode.For more special, sudden more intense, the business information that does not have periodicity, as intercut urgent news and notify, match of certain team or the like, then because its content is relative with broadcast time unfixing, this watched the user in this time, may watch at other times next time, perhaps just not see next time; So can be the two-way authorization pattern with such traffic set.
Step 103: user terminal adopts broadcast authorized mode to receive authorization key from network terminal;
Generally, user terminal starts broadcast authorized condition receiving and deciphering chip always, receives the authorization key that network terminal sends at any time.
In the preferred embodiment of the present invention, for the business program of broadcast authorized mode, network terminal can will authorize the time prior notice to give user terminal; When user terminal arrived in the described mandate time, enable broadcast authorized condition receiving and deciphering chip, receive authorization key from network terminal and get final product, and need not startup in 24 hours, to reduce electrical source consumption.
For example 19 o'clock sharps of evening every day watched the night news radio hookup from network terminal by the CMMB mobile phone, then network terminal will authorize 19 of times to be notified to the CMMB mobile phone, to adopt the mode of data carousel to send authorization key by broadcast channel then, data carousel be a kind of service that, once or repeatedly sends one group of identical data module with allowing server or certain application cycle.If a user terminal has missed the data that this next round is broadcast,, then need by the time the moment of broadcasting next time when he wishes to visit once more wherein certain specific modules.According to aforesaid way, the CMMB mobile phone at night 19 the time (perhaps 5 minutes in advance) enable broadcast authorized condition receiving and deciphering chip automatically, the authorization key that receives the night news radio hookup of network terminal broadcasting gets final product.
The present invention is unit with the TV programme, and under this mode, user terminal can be known the mandate time that sends key in advance, only need obtain authorization key in the mandate time of appointment, and do not need to prepare at any time to receive, having reduced the processing of user terminal, mode is flexible.
Step 104: user terminal adopts the two-way authorization mode to receive authorization key from network terminal.
A kind of situation in the embodiment of the invention is the authorized address of known certain TV programme of CMMB mobile phone, is specially user terminal and enables two-way authorization condition receiving and deciphering chip, and initiatively send authorization requests to fixed address by duplex channel; Network terminal sends to the CMMB mobile phone according to described authorization requests with authorization key.
In the preferred embodiment of the present invention, the CMMB mobile phone obtains authorization key from network terminal, and TV reception is specially: network terminal sends the two-way authorization address to the CMMB mobile phone; User terminal is enabled two-way authorization condition receiving and deciphering chip, and is sent authorization requests by described duplex channel to network terminal according to the two-way authorization address that receives; Network terminal sends to the CMMB mobile phone according to described authorization requests with authorization key, and deciphering chip is decrypted and notifies playing module to play according to authorization key to business information then, watches for the user.For more special, sudden more intense, do not have the business of periodicity, take the two-way authorization mode, owing to adopt two-way authentication, service authorization flexibly can be realized, and the success of authorizing can be guaranteed.
For the mode of network terminal to CMMB mobile phone transmission two-way authorization address, can be varied, the present invention does not need to be limited, and only describes for example below.For example, when CMMB handset starting mobile TV playing module when network terminal is asked for programme information, network terminal can be replied the two-way authorization address, so that this user terminal obtains required authorization key; In addition, also can promptly adopt fixing authorized address at fixing program-authorized address correspondence table is set at user side, user terminal only need be searched local tabulation can know at current program to send authorization requests to which authorized address.
Another preferred embodiment of service key obtaining method of the present invention specifically may further comprise the steps as shown in Figure 2:
Step 201, startup CMMB mobile phone.
Step 202, the mandate time that is received when ordering program, regular receives authorization key from network terminal, so that obtain at content and the broadcast time authorization key of fixing program relatively;
Step 203, foundation are decrypted and obtain corresponding business information when inferior authorization key or the local stored authorized key that is received, and watch TV programme;
If the current program of step 204 is not authorized to receive, then network terminal is returned the two-way authorization address at this program;
If though the current program of step 205 can be watched, but in current program, provided the notice of a particular program, for example the time of certain finals has just started broadcasting at the another one channel in advance at once, and has provided the two-way authorization address at this program simultaneously;
Step 206, CMMB mobile phone receive the two-way authorization address of network terminal, send authorization requests by duplex channel to network terminal, adopt the two-way authorization mode, receive authorization key from network terminal; Execution in step 203 then.
Preferably, under broadcast authorized mode, network terminal adopts the mode of data carousel to send authorization key by broadcast channel, if user terminal has missed the authorization key that this next round is broadcast (not authorizing one of concrete condition that receives in the step 204), when user terminal wishes to visit once more certain specific business information wherein (this moment, user terminal was known the authorized address of described business information), user terminal can be initiated authorization requests to this authorized address by the two-way authorization mode, receives described authorization key.
With reference to Fig. 3, show the embodiment that a kind of business cipher key of the present invention obtains system, specifically can comprise network terminal 301 and user terminal 302,
Wherein, described network terminal 301 comprises: authorization key generation unit 3011 is used for generating authorization key according to business information; Authorization setup unit 3012 is used for setting corresponding authorization based on type of service; Certainly, the present invention does not need to limit any concrete business-mandate corresponding relation, and is general, for content and broadcast time relatively-stationary business information, set to adopt broadcast authorized mode; For the relative unfixed business information of content, set the two-way authorization mode that adopts with broadcast time.
Described user terminal 302 comprises:
Judging unit 3021 is used for knowing authorization at present type of service from network terminal;
Broadcast authorized receiving element 3022 is used to adopt broadcast authorized mode to receive authorization key from network terminal;
Two-way authorization receiving element 3023 is used to adopt the two-way authorization mode to receive authorization key from network terminal.
In a preferred embodiment of the invention, broadcast authorized mode has been done further improvement: described network terminal also comprises mandate time transmitting element, is used under broadcast authorized mode, will authorize the time prior notice to give user terminal; Simultaneously, the broadcast authorized receiving element of described user terminal started in the described mandate time, adopted broadcast authorized mode to receive authorization key from network terminal.
Accordingly, in the two-way authorization pattern, described network terminal can also comprise the authorized address transmitting element, is used for before business information begins to play or broadcast, gives user terminal with the two-way authorization address notification; Then simultaneously, the two-way authorization receiving element of described user terminal adopts the two-way authorization mode to receive authorization key from network terminal according to the two-way authorization address that receives.
With reference to Fig. 4, show the embodiment of a kind of Conditional Access Module of the present invention, be arranged in user terminal, the effect of this Conditional Access Module is exactly to be used for adopting corresponding authorization at different business information, obtain required authorization key from network side, it specifically can comprise:
Judging unit 401 is used for knowing authorization at present type of service from network terminal;
Broadcast authorized deciphering chip 402 is used to adopt broadcast authorized mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
Two-way authorization deciphering chip 403 is used to adopt the two-way authorization mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service.
In a preferred embodiment of the invention, Conditional Access Module can also comprise mandate time receiving element 404, is used under broadcast authorized mode, receives the mandate time that network terminal sends; When arriving, starts the described mandate time broadcast authorized deciphering chip 402.
In another preferred embodiment of the present invention, Conditional Access Module can also comprise authorized address receiving element 405, is used under the two-way authorization mode, receives the two-way authorization address that network terminal sends; Described two-way authorization deciphering chip 403 sends authorization requests according to this two-way authorization address to network terminal, to obtain authorization key.
The present invention also provides a kind of user terminal embodiment, comprises the duplex channel of carrying out radio communication with network terminal, and Conditional Access Module,
Described Conditional Access Module comprises:
Judging unit is used for knowing authorization at present type of service from network terminal;
Broadcast authorized deciphering chip is used to adopt broadcast authorized mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
The two-way authorization deciphering chip is used to adopt the two-way authorization mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service.
Preferably, described Conditional Access Module can adopt in actual applications and be embedded among the subscriber terminal equipment structure, with the structure of user terminal formation one; Perhaps, this module is connected with user terminal to separate the mode of pegging graft.The present invention does not do particular determination at this.
Need to prove, user terminal of the present invention can comprise display module, business information playing module etc., promptly has portable terminal of broadcast program function voluntarily etc., also can not comprise above-mentioned display module and business information playing module, only have to authorize and receive and decipher function, when watching, the user needs the external equipment that displays the play, for example digital TV set-top box.
Among the embodiment of Conditional Access Module shown in Figure 4 in the above and the embodiment of user terminal, all adopted broadcast authorized deciphering chip and two-way authorization deciphering chip to describe, but in fact, the present invention also can adopt the broadcast authorized decrypting device and the two-way authorization decrypting device of other example, in hardware.For example, adopt two chips that function combines; Perhaps, two functions of broadcast authorized deciphering and two-way authorization deciphering are integrated on other chips realize or the like.
In sum, a kind of service key obtaining method, system, Conditional Access Module and user terminal that the embodiment of the invention provides, for the user terminal that has broadcast authorized and two-way authorization simultaneously, can well be in conjunction with the advantage of two kinds of authorizations, and satisfy requirements of different users flexibly, improved the efficient of subscriber authorisation, promoted user's Experience Degree, and economized on resources and power consumption.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the embodiment of device class, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than method, system, Conditional Access Module and user terminal that a kind of business cipher key provided by the present invention is obtained, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. a service key obtaining method is characterized in that, comprising:
User terminal is known authorization at present type of service from network terminal; Described authorization is based on type of service and sets;
If authorization is broadcast authorized, then user terminal adopts broadcast authorized mode to receive authorization key from network terminal;
If authorization is a two-way authorization, then user terminal adopts the two-way authorization mode to receive authorization key from network terminal;
Wherein, under broadcast authorized mode, when user terminal misses the authorization key of network terminal broadcasting, adopt the two-way authorization mode to receive described authorization key; Described authorization key is generated based on business information by network terminal.
2. service key obtaining method according to claim 1 is characterized in that: described business information is a TV programme.
3. service key obtaining method according to claim 1 is characterized in that, sets corresponding authorization by following steps:
For content and broadcast time relatively-stationary business information, set to adopt broadcast authorized mode;
For the relative unfixed business information of content, set the two-way authorization mode that adopts with broadcast time.
4. service key obtaining method according to claim 3 is characterized in that, described broadcast authorized mode specifically comprises:
Network terminal will authorize the time prior notice to give user terminal;
User terminal is enabled broadcast authorized condition receiving and deciphering chip in the described mandate time, receives authorization key from network terminal.
5. service key obtaining method according to claim 3 is characterized in that, described two-way authorization mode specifically comprises:
Network terminal sends the two-way authorization address to user terminal before business information begins to play or in playing;
User terminal is enabled two-way authorization condition receiving and deciphering chip, and is sent authorization requests by the duplex channel of user terminal to network terminal according to the two-way authorization address that receives;
Network terminal sends to user terminal according to described authorization requests with authorization key.
6. a business cipher key obtains system, it is characterized in that, comprises network terminal and user terminal,
Described network terminal comprises:
The authorization key generation unit is used for generating authorization key according to business information;
The authorization setup unit is used for setting corresponding authorization based on type of service;
Described user terminal comprises:
Judging unit is used for knowing authorization at present type of service from network terminal;
Broadcast authorized receiving element is used to adopt broadcast authorized mode to receive authorization key from network terminal;
The two-way authorization receiving element is used to adopt the two-way authorization mode to receive authorization key from network terminal;
Wherein, when broadcast authorized receiving element misses the authorization key of network terminal broadcasting, trigger the two-way authorization receiving element.
7. business cipher key according to claim 6 obtains system, it is characterized in that,
Described network terminal also comprises mandate time transmitting element, is used under broadcast authorized mode, will authorize the time prior notice to give user terminal; Then,
The broadcast authorized receiving element of described user terminal started in the described mandate time, adopted broadcast authorized mode to receive authorization key from network terminal.
8. business cipher key according to claim 7 obtains system, it is characterized in that,
Described network terminal also comprises the authorized address transmitting element, is used for before business information begins to play or broadcast, gives user terminal with the two-way authorization address notification; Then,
The two-way authorization receiving element of described user terminal adopts the two-way authorization mode to receive authorization key from network terminal according to the two-way authorization address that receives.
9. a Conditional Access Module is arranged in user terminal, it is characterized in that, comprising:
Judging unit is used for knowing authorization at present type of service from network terminal;
Broadcast authorized decrypting device is used to adopt broadcast authorized mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
The two-way authorization decrypting device is used to adopt the two-way authorization mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
Wherein, when broadcast authorized decrypting device is missed the authorization key of network terminal broadcasting, trigger the two-way authorization decrypting device.
10. Conditional Access Module according to claim 9 is characterized in that, also comprises:
Mandate time receiving element is used under broadcast authorized mode, receives the mandate time that network terminal sends; When arriving, starts the described mandate time broadcast authorized decrypting device.
11. Conditional Access Module according to claim 9 is characterized in that, also comprises:
The authorized address receiving element is used under the two-way authorization mode, receives the two-way authorization address that network terminal sends; Described two-way authorization decrypting device sends authorization requests according to this two-way authorization address to network terminal, to obtain authorization key.
12. a user terminal comprises the duplex channel that communicates with network terminal, it is characterized in that, also comprises Conditional Access Module,
Described Conditional Access Module comprises:
Judging unit is used for knowing authorization at present type of service from network terminal;
Broadcast authorized decrypting device is used to adopt broadcast authorized mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
The two-way authorization decrypting device is used to adopt the two-way authorization mode to receive authorization key from network terminal, to realize the deciphering reception to present type of service;
Wherein, when broadcast authorized decrypting device is missed the authorization key of network terminal broadcasting, trigger the two-way authorization decrypting device.
13. user terminal according to claim 12 is characterized in that:
Described Conditional Access Module is embedded among the subscriber terminal equipment structure, with the structure of user terminal formation one;
Perhaps, described Conditional Access Module is connected with user terminal to separate the mode of pegging graft.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1620137A (en) * | 2003-11-21 | 2005-05-25 | 华为技术有限公司 | Authorization system and method |
| US20060141988A1 (en) * | 2002-12-02 | 2006-06-29 | Canal + Technologies | Messaging over mobile phone network for digital multimedia network |
| CN101076109A (en) * | 2007-05-11 | 2007-11-21 | 天栢宽带网络科技（上海）有限公司 | Two-way CA system of digital TV-set and method for ordering and cancelling programm based on it |
| CN101087402A (en) * | 2007-03-12 | 2007-12-12 | 深圳清华大学研究院 | Digital TV encryption and authorization system and method based on IP stream |
| CN101312402A (en) * | 2008-05-30 | 2008-11-26 | 北京创毅视讯科技有限公司 | Authentication management information timing receiving method and terminal |
| CN101321261A (en) * | 2008-04-25 | 2008-12-10 | 北京创毅视讯科技有限公司 | Front-end system, user terminal and authorization management information distribution method |
-
2009
- 2009-05-26 CN CN2009100853164A patent/CN101582729B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060141988A1 (en) * | 2002-12-02 | 2006-06-29 | Canal + Technologies | Messaging over mobile phone network for digital multimedia network |
| CN1620137A (en) * | 2003-11-21 | 2005-05-25 | 华为技术有限公司 | Authorization system and method |
| CN101087402A (en) * | 2007-03-12 | 2007-12-12 | 深圳清华大学研究院 | Digital TV encryption and authorization system and method based on IP stream |
| CN101076109A (en) * | 2007-05-11 | 2007-11-21 | 天栢宽带网络科技（上海）有限公司 | Two-way CA system of digital TV-set and method for ordering and cancelling programm based on it |
| CN101321261A (en) * | 2008-04-25 | 2008-12-10 | 北京创毅视讯科技有限公司 | Front-end system, user terminal and authorization management information distribution method |
| CN101312402A (en) * | 2008-05-30 | 2008-11-26 | 北京创毅视讯科技有限公司 | Authentication management information timing receiving method and terminal |
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| CN101582729A (en) | 2009-11-18 |
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