CN101184274B - Method of implementing mobile terminal condition reception - Google Patents
Method of implementing mobile terminal condition reception Download PDFInfo
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- CN101184274B CN101184274B CN2007101990850A CN200710199085A CN101184274B CN 101184274 B CN101184274 B CN 101184274B CN 2007101990850 A CN2007101990850 A CN 2007101990850A CN 200710199085 A CN200710199085 A CN 200710199085A CN 101184274 B CN101184274 B CN 101184274B
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Abstract
The invention provides a method for realizing conditional receiving for mobile terminal. Firstly, the operator sets user key for a mobile terminal, and the mobile terminal stores the user key; then, the operator sets service key for the mobile terminal, and if the mobile terminal is an unidirectional terminal, the operator writes the service key directly into the unidirectional terminal, and the mobile terminal stores the service key; lastly, the operator broadcasts the key of encrypted program stream and the encrypted program stream to the mobile terminal, and the mobile terminal processes the received key of encrypted program stream and the encrypted program stream. The invention integrates the advantages of both conditional receiving technical proposals for mobile terminal in prior art, and allows unlimited number of users in theory, and can support both the dual-way terminals and the unidirectional terminals through setting service keys directly for unidirectional terminals.
Description
Technical field
The present invention relates to the communications field, particularly portable terminal/mobile multimedia broadcast conditional receives the field.
Background technology
At present, portable terminal (as mobile TV)/the Mobile Multimedia Broadcasting development rapidly, two kinds of content-encrypt technical schemes of main employing: a kind of is to adopt unidirectional broadcast network and traditional C A (condition reception) technology to realize, this scheme is because the CA technology limitation, can only in broadcast channel, send user's Entitlement Control Message (ECM) and Entitlement Management Message (EMM), the number of users of supporting is subjected to the restriction of broadcast bandwidth, can't support large user's number, can only support millions of users at most; Another kind is to adopt bidirectional mobile communication network and mobile authentication encryption technology to realize, this scheme can be by the point-to-point transmission user's of bidirectional mobile network network Entitlement Control Message (ECM) and Entitlement Management Message (EMM), can support large user's number, but this scheme can only be supported bidirectional terminal, improved the cost of terminal, be unfavorable for that marketing and business carry out.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method that realizes that mobile terminal condition receives, can not support the large user to solve when the available technology adopting unidirectional broadcast network realizes that mobile terminal condition receives, and adopt the bidirectional mobile communication network to realize to support when mobile terminal condition receives the defective of unidirectional terminal.
In order to address the above problem, the invention provides a kind of method that realizes that mobile terminal condition receives, comprising:
A, operator are that portable terminal is provided with user key, the described user key of described mobile terminal stores;
B, operator are that portable terminal is provided with business cipher key, if described portable terminal is unidirectional terminal, described operator directly writes described business cipher key described unidirectional terminal, the described business cipher key of described mobile terminal stores;
C, operator be to the program current cipher key of portable terminal broadcast enciphering and the program stream of encryption, and described portable terminal receives that being decrypted the back behind the program stream of the program current cipher key of described encryption and encryption plays.
Further, described steps A comprises that also described operator is stored as the user key that described portable terminal is provided with, and described portable terminal is stored in described user key on the Subscriber Identity Module.
Further, among the described step B, if described portable terminal is unidirectional terminal, operator stores described business cipher key after unidirectional terminal is provided with business cipher key, and with the described business cipher key of random number encryption, then described random number is write the Subscriber Identity Module of described unidirectional terminal together with the business cipher key of encrypting;
Described Subscriber Identity Module decrypts business cipher key according to user key, and stores described business cipher key.
Further, among the described step B, if described portable terminal is bidirectional terminal, operator is that mode that described bidirectional terminal is provided with business cipher key is any in the following mode:
Bidirectional terminal sends the service order request by the bidirectional mobile communication network to operator, described operator generates business cipher key according to described service order request, again according to the user key of bidirectional terminal with the described business cipher key of random number encryption, then described random number is sent to described bidirectional terminal together with the business cipher key of encrypting by the bidirectional mobile communication network, by described bidirectional terminal the business cipher key of described random number and encryption is sent to Subscriber Identity Module again, described Subscriber Identity Module decrypts business cipher key according to user key, and stores described business cipher key;
Operator directly is that described bidirectional terminal generates business cipher key, and with the described business cipher key of random number encryption, then described random number is write the Subscriber Identity Module of described bidirectional terminal together with the business cipher key of encrypting, described Subscriber Identity Module decrypts business cipher key according to user key, and stores described business cipher key.
Further, described step C specifically comprises, operator is with described business cipher key ciphered program stream secrete key, and with described encrypting program stream keys program stream, broadcast the program stream of described encryption and the program current cipher key of encryption by unidirectional broadcast network to portable terminal then, the program current cipher key of the described encryption that described portable terminal will receive sends to Subscriber Identity Module, described Subscriber Identity Module decrypts program current cipher key according to the business cipher key of storage, and described program current cipher key returned to portable terminal, described portable terminal is deciphered described program stream according to described program current cipher key, plays described program stream then.
Further, if described portable terminal is a bidirectional terminal, also comprise between described steps A and the step B: operator and described bidirectional terminal are finished bi-directional authentification.
In sum, the invention provides a kind of method that realizes that mobile terminal condition receives, in conjunction with two kinds of advantages that realize the mobile terminal condition reception programme in the prior art, and unrestricted in theory by unidirectional terminal directly being provided with the number of users that business cipher key make to adopt technical scheme of the present invention not only support, can also reach the technique effect of not only supporting bidirectional terminal but also supporting unidirectional terminal.
Description of drawings
Fig. 1 is the structural representation that the present invention realizes the system that mobile terminal condition receives;
Fig. 2 is that the specific embodiment of the invention realizes the method schematic flow diagram that the bidirectional terminal condition receives;
Fig. 3 is that the specific embodiment of the invention realizes the method schematic flow diagram that unidirectional terminal condition receives.
Embodiment
Present embodiment provides a kind of method that realizes that mobile terminal condition receives, and is illustrated in figure 1 as the structural representation that the present invention realizes the system that mobile terminal condition receives.Below with reference to accompanying drawing bidirectional terminal and unidirectional terminal are described respectively, and are that example is described the used for mobile terminal mobile TV:
One, as shown in Figure 2, the idiographic flow of realization bidirectional terminal condition reception is as follows:
Step 201: initialization MUK (user key) goes up in the SIM card (Subscriber Identity Module) of bidirectional terminal in operator, and MUK promptly is set, and operator preserves the MUK of this bidirectional terminal simultaneously; The same prior art of these step concrete operations;
Step 202: during the bidirectional terminal start, the MUK according to MUK that preserves in the terminal SIM card and the preservation of bidirectional mobile communication Virtual network operator carries out bi-directional authentification by the bidirectional mobile communication network, allows accessing user terminal to network also to use mobile phone TV services.Whether this step is optional, undertaken by operator's decision, promptly determines whether to carry out bi-directional authentification, the same prior art of the concrete operations of bi-directional authentification when the portable terminal of access network is bidirectional terminal as required;
Step 203: operator is that bidirectional terminal is provided with MSK (business cipher key), and the MSK of storage setting, and MSK comprises ECM and EMM herein, and concrete mode can be:
(1) bidirectional terminal is ordered mobile phone TV services by the bidirectional mobile communication network to operator, operator generates MSK according to the service subscription request, again according to user's MUK, use random number encryption MSK, MSK and random number after encrypting are handed down to bidirectional terminal by the clean culture of bidirectional mobile communication network, and bidirectional terminal sends to SIM card with the MSK of random number and encryption again, and SIM card goes up the MUK of storage according to card, solve MSK, and MSK is left on the SIM card;
(2) operator directly sets specific business cipher key for this bidirectional terminal, and use random number encryption MSK, and the write direct SIM card of bidirectional terminal of MSK after will encrypting then and random number, SIM card goes up the MUK of storage according to card, solve MSK, and MSK is left on the SIM card.If adopt the write direct mode of SIM card, then when bidirectional terminal is started shooting, decrypt MSK by SIM card with MSK.
Step 204: MTK (program current cipher key) encrypts with MSK in operator, again with MTK ciphered program stream; The MTK that broadcasts encrypted program stream and encryption by unidirectional broadcast network gives bidirectional terminal;
Step 205: bidirectional terminal sends SIM card to after receiving the MTK of encryption, and SIM card solves MTK according to the MSK on the card, sends terminal then to; After terminal is received the program stream of encryption, with MTK the program stream of encrypting is decoded, and play in terminal.
Two, as shown in Figure 3, realize that the idiographic flow that unidirectional terminal condition receives is as follows:
Step 301: operator is initialization MUK on the SIM card of unidirectional terminal, and MUK promptly is set, and operator preserves the MUK of this unidirectional terminal simultaneously; The same prior art of these step concrete operations;
Step 302: operator is that unidirectional terminal is provided with specific MSK (business cipher key), and the MSK that is provided with of storage, uses random number encryption MSK then, with MSK together with the write direct SIM card of unidirectional terminal of random number; When unidirectional starting up of terminal, SIM card goes up the MUK of storage according to card, solves MSK, and MSK is left on the SIM card.
Step 303: MTK encrypts with MSK in operator, again with MTK ciphered program stream; The MTK that broadcasts encrypted program stream and encryption by unidirectional broadcast network gives unidirectional terminal;
Step 304: unidirectional terminal sends SIM card to after receiving the MTK of encryption, and SIM card solves MTK according to the MSK on the card, sends terminal then to; After terminal is received the program stream of encryption, with MTK the program stream of encrypting is decoded, and play in terminal.
The user of unidirectional terminal is if need change professional, replaceable SIM card or change the business of order to the business hall; And the user of bidirectional terminal is if need change professional, then can or change the business of order to the business hall by the bidirectional mobile communication network.
Claims (6)
1. method that realizes that mobile terminal condition receives comprises:
A, operator are that portable terminal is provided with user key, the described user key of described mobile terminal stores;
B, operator are that portable terminal is provided with business cipher key, the described business cipher key of described mobile terminal stores, if described portable terminal is unidirectional terminal, described operator is that unidirectional terminal is provided with business cipher key and storage service key, with the described business cipher key of random number encryption, with the encrypted service key described unidirectional terminal of writing direct; Described unidirectional terminal is according to the user key decoding encrypted service key of storage;
C, operator use the encrypting program stream keys program stream again with business cipher key ciphered program stream secrete key; Operator is to the program current cipher key of portable terminal broadcast enciphering and the program stream of encryption, and described portable terminal receives that being decrypted the back behind the program stream of the program current cipher key of described encryption and encryption plays.
2. the method for claim 1 is characterized in that:
Described steps A comprises that also described operator is stored as the user key that described portable terminal is provided with, and described portable terminal is stored in described user key on the Subscriber Identity Module.
3. the method for claim 1 is characterized in that:
Among the described step B, if described portable terminal is unidirectional terminal, operator is that unidirectional terminal is provided with the described business cipher key of storage behind the business cipher key, and with the described business cipher key of random number encryption, then described random number is write the Subscriber Identity Module of described unidirectional terminal together with the business cipher key of encryption;
Described Subscriber Identity Module decrypts business cipher key according to user key, and stores described business cipher key.
4. method as claimed in claim 2 is characterized in that:
Among the described step B, if described portable terminal is bidirectional terminal, operator is that mode that described bidirectional terminal is provided with business cipher key is any in the following mode:
Bidirectional terminal sends the service order request by the bidirectional mobile communication network to operator, described operator generates business cipher key according to described service order request, again according to the user key of bidirectional terminal with the described business cipher key of random number encryption, then described random number is sent to described bidirectional terminal together with the business cipher key of encrypting by the bidirectional mobile communication network, by described bidirectional terminal the business cipher key of described random number and encryption is sent to Subscriber Identity Module again, described Subscriber Identity Module decrypts business cipher key according to user key, and stores described business cipher key;
Operator directly is that described bidirectional terminal generates business cipher key, and with the described business cipher key of random number encryption, then described random number is write the Subscriber Identity Module of described bidirectional terminal together with the business cipher key of encrypting, described Subscriber Identity Module decrypts business cipher key according to user key, and stores described business cipher key.
5. as claim 3 or 4 described methods, it is characterized in that:
Described step C specifically comprises, operator broadcasts the program stream of described encryption and the program current cipher key of encryption by unidirectional broadcast network to portable terminal, the program current cipher key of the described encryption that described portable terminal will receive sends to Subscriber Identity Module, described Subscriber Identity Module decrypts program current cipher key according to the business cipher key of storage, and described program current cipher key returned to portable terminal, described portable terminal is deciphered described program stream according to described program current cipher key, plays described program stream then.
6. the method for claim 1 is characterized in that:
If described portable terminal is a bidirectional terminal, also comprise between described steps A and the step B: operator and described bidirectional terminal are finished bi-directional authentification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101990850A CN101184274B (en) | 2007-12-12 | 2007-12-12 | Method of implementing mobile terminal condition reception |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101990850A CN101184274B (en) | 2007-12-12 | 2007-12-12 | Method of implementing mobile terminal condition reception |
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| Publication Number | Publication Date |
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| CN101184274A CN101184274A (en) | 2008-05-21 |
| CN101184274B true CN101184274B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101990850A Expired - Fee Related CN101184274B (en) | 2007-12-12 | 2007-12-12 | Method of implementing mobile terminal condition reception |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103312488A (en) * | 2013-06-08 | 2013-09-18 | 卢泳 | Novel communication method and novel communication system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972434A (en) * | 2005-11-23 | 2007-05-30 | 中国移动通信集团公司 | Data protection method of multimedia broadcast multicast service |
| CN101009553A (en) * | 2006-12-30 | 2007-08-01 | 中兴通讯股份有限公司 | Secret key safety method and system for realizing multi-network integration mobile multi-media broadcasting system |
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- 2007-12-12 CN CN2007101990850A patent/CN101184274B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972434A (en) * | 2005-11-23 | 2007-05-30 | 中国移动通信集团公司 | Data protection method of multimedia broadcast multicast service |
| CN101009553A (en) * | 2006-12-30 | 2007-08-01 | 中兴通讯股份有限公司 | Secret key safety method and system for realizing multi-network integration mobile multi-media broadcasting system |
Non-Patent Citations (1)
| Title |
|---|
| JP特開2002-125213A 2002.04.26 |
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| CN101184274A (en) | 2008-05-21 |
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