CN102006515A - Multimedia program ordering method, intelligent card and user terminal equipment - Google Patents
Multimedia program ordering method, intelligent card and user terminal equipment Download PDFInfo
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- CN102006515A CN102006515A CN 201010536632 CN201010536632A CN102006515A CN 102006515 A CN102006515 A CN 102006515A CN 201010536632 CN201010536632 CN 201010536632 CN 201010536632 A CN201010536632 A CN 201010536632A CN 102006515 A CN102006515 A CN 102006515A
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Abstract
The embodiment of the invention discloses a multimedia program ordering method, an intelligent card and user terminal equipment, and the method comprises: acquiring the MAC value of a user side by an intelligent card according to the serial numbers, playing dates and encryption key indexes of the ordered programs by users, and obtaining an MAC value of the user side; comparing whether the MAC value of a server side and the MAC value of the user side is equal by the intelligent card; receiving a decryption password index sent by a user terminal device by the intelligent card when the MAC value of a server side and the MAC value of the user side is equal and the intelligent card is at a valid state; seeking by the intelligent card according to the decryption password index and the decryption password is obtained; and transmitting the decryption password to the user terminal device by the intelligent card, so that the user terminal device decrypts and plays the multi-media programs by utilizing the decryption passwords. The invention is applicable to the ordering of the multi-media programs.
Description
Technical field
The present invention relates to multimedia technology field, particularly a kind of multimedia programming order method, smart card and subscriber terminal equipment.
Background technology
At present, the user is before using set-top box program request charge multimedia programming, the business hall paying that needs are offered to multimedia programming operator, operator opens an account to the user, user's set-top box is bound, and being set-top box allocation decruption key, set-top box is stored this decruption key.During user's program request charge multimedia programming, set-top box receive that multimedia programming provider sends over through behind the multimedia programming after encrypting, use the decruption key of self storing that this multimedia programming is decrypted, thereby the user can watch this charge multimedia programming.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
Because the decruption key of multimedia programming is kept in the set-top box, the disabled user can obtain decruption key by forging set-top box, and then watches multimedia programming, and paying customer's legitimate interests are caused damage, and the fail safe of multimedia programming program request is not high.
Summary of the invention
Embodiments of the invention provide a kind of multimedia programming order method, smart card and subscriber terminal equipment, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
The technical scheme that the embodiment of the invention adopts is:
A kind of multimedia programming order method comprises:
Smart card obtains user side MAC value according to numbering, input date and the encryption key indices of the multimedia programming of user's program request;
Relatively whether server end MAC value is identical with described user side MAC value for smart card;
And subscriber terminal equipment identical with described user side MAC value judged when smart card is in effective status when described server end MAC value, smart card receives the decruption key index that described subscriber terminal equipment sends, and described decruption key index is that described subscriber terminal equipment obtains from server end;
Smart card obtains decruption key according to described decruption key index search;
Smart card sends to described subscriber terminal equipment with described decruption key, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
A kind of multimedia programming order method comprises:
Obtain numbering, input date, encryption key indices and the server end MAC value of the multimedia programming of user's program request from server end;
Numbering, input date, encryption key indices and the server end MAC value of described multimedia programming are sent to smart card;
When described smart card according to the numbering of described multimedia programming, throw in user side MAC value that date and encryption key indices obtain when identical with described server end MAC value, judge whether described smart card is in effective status;
When described smart card is in effective status, obtain the decruption key index from described server end;
Described decruption key index is sent to described smart card, so that described smart card obtains decruption key according to described decruption key index search;
Receive the described decruption key that described smart card sends;
Utilize described decruption key that described multimedia programming is decrypted and plays.
A kind of smart card comprises:
First acquisition module is used for numbering, input date and encryption key indices according to the multimedia programming of user's program request, obtains user side MAC value;
Comparison module, whether be used for comparison server end MAC value identical with described user side MAC value;
First receiver module, being used for when described server end MAC value and subscriber terminal equipment identical with described user side MAC value judges when smart card is in effective status, receive the decruption key index that described subscriber terminal equipment sends, described decruption key index is that described subscriber terminal equipment obtains from server end;
Search module, be used for obtaining decruption key according to described decruption key index search;
First sending module is used for described decruption key is sent to described subscriber terminal equipment, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
A kind of subscriber terminal equipment comprises:
Second acquisition module, be used for from server end obtain the multimedia programming of user's program request numbering, throw in date, encryption key indices and server end MAC value;
Second sending module is used for numbering, input date, encryption key indices and the server end MAC value of described multimedia programming are sent to smart card;
First judge module, be used for when described smart card according to the numbering of described multimedia programming, throw in user side MAC value that date and encryption key indices obtain when identical with described server end MAC value, judge whether described smart card is in effective status;
The 3rd acquisition module is used for obtaining the decruption key index from described server end when described smart card is in effective status;
The 3rd sending module is used for described decruption key index is sent to described smart card, so that described smart card obtains decruption key according to described decruption key index search;
The 4th receiver module is used to receive the described decruption key that described smart card sends;
Deciphering and playing module are used to utilize described decruption key that described multimedia programming is decrypted and plays.
Embodiment of the invention multimedia programming order method, smart card and subscriber terminal equipment, smart card is according to the numbering of the multimedia programming of user's program request, throw in date and encryption key indices, obtain user side MAC value, when server end MAC value identical with described user side MAC value, and when smart card is in effective status, receive the decruption key index that subscriber terminal equipment sends, obtain decruption key according to described decruption key index search, described decruption key is sent to described subscriber terminal equipment, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.Compared with prior art, decruption key obtains from server end by smart card in the embodiment of the invention, subscriber terminal equipment is no longer preserved decruption key, thereby can avoid obtaining decruption key by forging subscriber terminal equipment, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The method flow diagram that Fig. 1 provides for the embodiment of the invention one;
The method flow diagram that Fig. 2 provides for the embodiment of the invention two;
The method flow diagram that Fig. 3 provides for the embodiment of the invention three;
The smart card architecture schematic diagram that Fig. 4, Fig. 5, Fig. 6 provide for the embodiment of the invention four;
The subscriber terminal equipment structural representation that Fig. 7, Fig. 8, Fig. 9 provide for the embodiment of the invention five.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtained under the creative work prerequisite.
For the advantage that makes technical solution of the present invention is clearer, the present invention is elaborated below in conjunction with drawings and Examples.
Embodiment one
Present embodiment provides a kind of multimedia programming order method, and in the smart card side, as shown in Figure 1, described method comprises:
101, smart card obtains user side MAC (Message Authentication Code, information checking sign indicating number) value according to numbering, input date and the encryption key indices of the multimedia programming of user's program request.
102, relatively whether server end MAC value is identical with described user side MAC value for smart card.
103, and subscriber terminal equipment identical with described user side MAC value judged when smart card is in effective status when described server end MAC value, smart card receives the decruption key index that described subscriber terminal equipment sends, and described decruption key index is that described subscriber terminal equipment obtains from server end.
104, smart card obtains decruption key according to described decruption key index search.
105, smart card sends to described subscriber terminal equipment with described decruption key, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
Wherein, described subscriber terminal equipment can be set-top box, but is not limited only to this.
Embodiment of the invention multimedia programming order method, smart card is according to the numbering of the multimedia programming of user's program request, throw in date and encryption key indices, obtain user side MAC value, when server end MAC value identical with described user side MAC value, and when smart card is in effective status, receive the decruption key index that subscriber terminal equipment sends, obtain decruption key according to described decruption key index search, described decruption key is sent to described subscriber terminal equipment, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.Compared with prior art, decruption key obtains from server end by smart card in the embodiment of the invention, subscriber terminal equipment is no longer preserved decruption key, thereby can avoid obtaining decruption key by forging subscriber terminal equipment, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
Embodiment two
Present embodiment provides a kind of multimedia programming order method, and in the subscriber terminal equipment side, as shown in Figure 2, described method comprises:
201, subscriber terminal equipment obtains numbering, input date, encryption key indices and the server end MAC value of the multimedia programming of user's program request from server end.
202, subscriber terminal equipment sends to smart card with numbering, input date, encryption key indices and the server end MAC value of described multimedia programming.
203, when described smart card according to the numbering of described multimedia programming, throw in user side MAC value that date and encryption key indices obtain when identical with described server end MAC value, subscriber terminal equipment judges whether described smart card is in effective status.
204, when described smart card is in effective status, subscriber terminal equipment obtains the decruption key index from described server end.
205, subscriber terminal equipment sends to described smart card with described decruption key index, so that described smart card obtains decruption key according to described decruption key index search.
206, subscriber terminal equipment receives the described decruption key that described smart card sends.
207, subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
Embodiment of the invention multimedia programming order method, the numbering of the multimedia programming of user's program request that subscriber terminal equipment will obtain from server end, throw in the date, encryption key indices and server end MAC value send to smart card, the user side MAC value of obtaining when described smart card is identical with described server end MAC value, and when described smart card is in effective status, to send to described smart card from the decruption key index that described server end obtains, receive the decruption key that described smart card sends, utilize described decruption key that described multimedia programming is decrypted and plays.Compared with prior art, decruption key obtains from server end by smart card in the embodiment of the invention, subscriber terminal equipment is no longer preserved decruption key, thereby can avoid obtaining decruption key by forging subscriber terminal equipment, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
Embodiment three
Present embodiment provides a kind of multimedia programming order method, and in the present embodiment, subscriber terminal equipment is a set-top box.
As shown in Figure 3, described multimedia programming order method comprises:
301, the user buys smart card to the business hall of content of multimedia operator, opens an account, and pays the fees, and the expense of being paid is supplemented with money in the stored value card of smart card.
Wherein, the user can select monthly payment or bag year to pay the fees, store a closing date in the smart card after supplementing with money, the user is when the free online multimedium program, and set-top box does not need to deduct fees, and only needs judge that whether current date gets final product above the closing date, if current date does not surpass this closing date, then allow the play multimedia program,, then do not allow the play multimedia program if current date surpasses this closing date; The user also can select the mode by pay per view, and the disposable expense of paying certain number stores overall balance in the smart card after supplementing with money, and this overall balance can adopt and count, the form of integration or coin embodies, but is not limited only to this.When the free online multimedium program, set-top box is all deducted fees at every turn, and the remaining sum in smart card is less than the expense of needs deduction.
Wherein, the file structure in the described smart card can be as shown in table 1:
| File | Sign | Description of contents |
| MF | 3F00 | Master file |
| MKF | 0000 | The master key file |
| EF1 | 0001 | The command information file |
| DF | 3F09 | Use catalogue |
| DKF | 0000 | Use key file under the catalogue |
| EF1 | 0001 | The user profile file |
| EF2 | 0002 | Bag year or monthly payment closing date file |
| EF3 | 0003 | User's paying wallet file |
| EF4 | 0004 | Viewing message loop log file |
| EF5 | 0005 | Return the write information file |
Table 1
Wherein, the key information file format under the file MF in the table 1 can be as shown in table 2:
| Sign | Title | Purposes |
| 00 | The card master control key | The card purview certification |
Table 2
The content of 0001 file can memory card type, the perhaps data of customer requirements for reserving content under the MF.
Key information file structure under the file DF in the table 1 can be as shown in table 3:
Table 3
302, the user is with in the smart card insertion machine top box, and set-top box and smart card authenticate, and collator top box and smart card all are legal.
303, the user selects the multimedia programming that need watch by set-top box, clicks and confirms.
304, set-top box intercepting content server number is thrown in the information flow of coming out by wired information, read numbering, input date, encryption key indices, the server end MAC value of this multimedia programming, and numbering, input date, encryption key indices and the server end MAC value of this multimedia programming sent to smart card.
Wherein, the computational methods of server end MAC value are: server end is key of picked at random from a group key, uses this key that numbering, the input date of this multimedia programming are carried out MAC and calculates, and obtains the server end MAC value of this multimedia programming.
305, set-top box is obtained user type and subscriber payment type from smart card.
306, set-top box judges whether user type allows to watch this multimedia programming, if do not allow to watch this multimedia programming, then can not play this multimedia programming, finishes; If allow to watch this multimedia programming, then carry out 307.
307, set-top box is judged the subscriber payment type, if the subscriber payment type is monthly payment or bag year, carries out 308; If the subscriber payment type for to deduct fees by program, carries out 312.
308, smart card finds the key of corresponding calculating user side MAC value by encryption key indices in the card key file, and utilizes this key that numbering, the input date of this multimedia programming are carried out MAC and calculate, and obtains user side MAC value.
309, relatively whether server end MAC value is identical with user side MAC value for smart card, if inequality, then can not play this multimedia programming; If identical, then carry out 310.
310, set-top box reads the closing date in monthly payment or bag year from smart card.
311, set-top box compares current date and whether surpasses this closing date, if current date surpasses this closing date, then can not play this multimedia programming; If current date does not surpass this closing date, then carry out 321-323.
312, set-top box reads the information of deducting fees of this multimedia programming from server, and the information of deducting fees is sent to smart card.
Wherein, the described information of deducting fees comprises the required expense of this multimedia programming of program request, and particularly, this information of deducting fees can adopt and count, the form of integration or coin embodies, but is not limited only to this.
313, smart card finds the key of corresponding calculating user side MAC value in the card key file by encryption key indices, calculate the sub-key of this multimedia programming by the numbering of this multimedia programming, utilize this sub-key that the numbering of this multimedia programming and the information of deducting fees are carried out MAC calculating, obtain user side MAC value.
314, relatively whether server end MAC value is identical with user side MAC value for smart card, if inequality, then can not play this multimedia programming; If identical, then carry out 315.
315, set-top box reads numbering and the effective time that smart card returns the efficient multimedia program in the write information file.
Wherein, the described numbering of returning the multimedia programming that stores at least one user program request in the write information file.
316, set-top box judges whether the numbering of the multimedia programming of current program request belongs in the described numbering of returning the efficient multimedia program in the write information file, if then carry out 317; If not, carry out 318.
317, whether set-top box judges the current time above described effective time, if the current time above described effective time, then carries out 318; If the current time does not surpass described effective time, then carry out 321-323.
318, set-top box reads the available balance in the smart card.
319, set-top box judges that available balance in the smart card is whether more than or equal to the expense of needs deduction, if available balance then carries out 320 more than or equal to the expense of needs deduction; If withdraw from after available balance less than the expense of needs deduction, is then pointed out the user, can not the play multimedia program.
320, the expense that deduction need be deducted in the available balance of server end from smart card, the numbering of returning the multimedia programming in the write information file is revised as the numbering of the multimedia programming of active user's program request, calculates the user and watch the zero-time of this multimedia programming for the last time and write and return in the write information file.
321, set-top box reads the decruption key index from server, and this decruption key index is sent to smart card.
322, smart card arrives corresponding decruption key by the decruption key index search, and this decruption key is sent to set-top box.
323, set-top box writes cycle index file in the smart card with user profile, multimedia programming information etc., utilizes this decruption key that multimedia programming is decrypted, and plays this multimedia programming.
Wherein, after user profile, multimedia programming information etc. write cycle index file in the smart card, when the user reuses that this smart card wraps year or monthly payment is bought or deducts fees when buying by program, the backstage of user's viewing information can being uploaded onto the server, for later on more accurately platform throw in data statistics be provided.
Embodiment of the invention multimedia programming order method, the numbering of the multimedia programming of user's program request that the smart card receiving set up box sends, throw in the date, encryption key indices and server end MAC value, numbering according to described multimedia programming, throw in the date, the information of deducting fees and encryption key indices, obtain user side MAC value, when described server end MAC value identical with described user side MAC value, and when smart card is in effective status, receive the decruption key index that described set-top box sends, obtain decruption key according to described decruption key index search, described decruption key is sent to described set-top box, so that described set-top box utilizes described decruption key that described multimedia programming is decrypted and plays.Compared with prior art, decruption key obtains from server end by smart card in the embodiment of the invention, set-top box is no longer preserved decruption key, thereby can avoid obtaining decruption key by forging set-top box, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
Embodiment four
Present embodiment provides a kind of smart card, and as shown in Figure 4, described smart card comprises:
First sending module 405 is used for described decruption key is sent to described subscriber terminal equipment, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
Further, as shown in Figure 5, described smart card can also comprise:
Further, as shown in Figure 5, described first acquisition module 401 can comprise:
First computing unit 4012 is used to utilize described encryption key that the numbering and the input date of described multimedia programming are calculated, and obtains user side MAC value.
Further, as shown in Figure 6, described smart card can also comprise:
The 3rd receiver module 407 is used to receive the information of deducting fees of the multimedia programming of user's program request that described subscriber terminal equipment sends;
Described first acquisition module 401 can comprise:
The 3rd computing unit 4015 is used to utilize described sub-key that the numbering of described multimedia programming and the information of deducting fees are calculated, and obtains user side MAC value.
Embodiment of the invention smart card, the numbering of the multimedia programming of user's program request that the reception subscriber terminal equipment sends, throw in the date, encryption key indices and server end MAC value, numbering according to described multimedia programming, throw in the date, the information of deducting fees and encryption key indices, obtain user side MAC value, when described server end MAC value identical with described user side MAC value, and when smart card is in effective status, receive the decruption key index that described subscriber terminal equipment sends, obtain decruption key according to described decruption key index search, described decruption key is sent to described subscriber terminal equipment, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.Compared with prior art, decruption key obtains from server end by smart card in the embodiment of the invention, subscriber terminal equipment is no longer preserved decruption key, thereby can avoid obtaining decruption key by forging subscriber terminal equipment, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
Embodiment five
Present embodiment provides a kind of subscriber terminal equipment, and as shown in Figure 7, described subscriber terminal equipment comprises:
The 3rd acquisition module 704 is used for obtaining the decruption key index from described server end when described smart card is in effective status;
The 3rd sending module 705 is used for described decruption key index is sent to described smart card, so that described smart card obtains decruption key according to described decruption key index search;
The 4th receiver module 706 is used to receive the described decruption key that described smart card sends;
Deciphering and playing module 707 are used to utilize described decruption key that described multimedia programming is decrypted and plays.
Further, as shown in Figure 8, described subscriber terminal equipment can also comprise:
Further, as shown in Figure 8, when described second judge module 708 was judged the subscriber payment type for bag year or monthly payment type, described first judge module 703 can comprise:
First judging unit 7032, be used to judge whether current date surpasses the closing date of described bag year or monthly payment, if current date surpasses the closing date of described bag year or monthly payment, then described smart card is in effective status, if current date surpasses the closing date of described bag year or monthly payment, then described smart card is in disarmed state.
Further, as shown in Figure 9, judging the subscriber payment type when described second judge module 708 is that described subscriber terminal equipment can also comprise when pressing the pay per view type:
The 4th sending module 709 is used for sending to described smart card the information of deducting fees of described multimedia programming;
Described smart card obtains user side MAC value according to the numbering of described multimedia programming, the information of deducting fees and encryption key indices.
Further, as shown in Figure 9, judging the subscriber payment type when described second judge module 708 is that described first judge module 703 can comprise when pressing the pay per view type:
The 3rd judging unit 7035, be used for when described second judging unit 7034 judges that the numbering of the multimedia programming of current program request belongs to of described efficient multimedia program code, judge whether the current time surpasses described effective time, if the current time does not surpass described effective time, then described smart card is in effective status, if the current time surpasses described effective time, then described smart card is in disarmed state;
Third reading is got unit 7036, be used for judging that when described second judging unit 7034 numbering of the multimedia programming of current program request belongs to one of described efficient multimedia program code and described the 3rd judging unit 7035 and judges that the current time surpass described effective time, perhaps when described second judging unit 7034 judges that the numbering of the multimedia programming of current program request does not belong in the described efficient multimedia program code one, read the available balance in the described smart card;
The 4th judging unit 7037, be used for judging that available balance that described third reading gets the described smart card that reads unit 7036 is whether more than or equal to the expense of needs deduction, if described available balance is more than or equal to the expense of needs deduction, then described smart card is in effective status, described server end is deducted the expense that needs deduction from described smart card, if described available balance is less than the expense of needs deduction, then described smart card is in disarmed state.
In the present embodiment, described subscriber terminal equipment can be set-top box, but is not limited only to this.
Embodiment of the invention subscriber terminal equipment, the numbering of the multimedia programming of the user's program request that will obtain from server end, throw in date, encryption key indices and server end MAC value and send to smart card, when the user side MAC value of obtaining when described smart card and described smart card identical with described server end MAC value is in effective status, to send to described smart card from the decruption key index that described server end obtains, receive the decruption key that described smart card sends, utilize described decruption key that described multimedia programming is decrypted and plays.Compared with prior art, decruption key obtains from server end by smart card in the embodiment of the invention, subscriber terminal equipment is no longer preserved decruption key, thereby can avoid obtaining decruption key by forging subscriber terminal equipment, can improve the fail safe of multimedia programming program request, ensure paying customer's legitimate interests.
The above-mentioned method embodiment that provides can be provided for smart card that the embodiment of the invention provides and subscriber terminal equipment.Multimedia programming order method, smart card and the subscriber terminal equipment that the embodiment of the invention provides goes for the program request of multimedia programming, but is not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (18)
1. a multimedia programming order method is characterized in that, comprising:
Smart card obtains user side information checking sign indicating number MAC value according to numbering, input date and the encryption key indices of the multimedia programming of user's program request;
Relatively whether server end MAC value is identical with described user side MAC value for smart card;
And subscriber terminal equipment identical with described user side MAC value judged when smart card is in effective status when described server end MAC value, smart card receives the decruption key index that described subscriber terminal equipment sends, and described decruption key index is that described subscriber terminal equipment obtains from server end;
Smart card obtains decruption key according to described decruption key index search;
Smart card sends to described subscriber terminal equipment with described decruption key, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
2. method according to claim 1 is characterized in that, also comprises:
The numbering of the multimedia programming of user's program request that smart card reception subscriber terminal equipment sends, input date, encryption key indices and server end MAC value, the numbering of described multimedia programming, input date, encryption key indices and server end MAC value are obtained from server end for described subscriber terminal equipment.
3. method according to claim 1 and 2 is characterized in that, described smart card obtains user side MAC value and comprises according to numbering, input date and the encryption key indices of the multimedia programming of user's program request:
Smart card is searched according to described encryption key indices and is obtained encryption key;
Smart card utilizes described encryption key that the numbering and the input date of described multimedia programming are calculated, and obtains user side MAC value.
4. method according to claim 1 and 2 is characterized in that, described method also comprises:
Smart card receives the information of deducting fees of the multimedia programming of user's program request that described subscriber terminal equipment sends;
Described smart card obtains user side MAC value and comprises according to numbering, input date and the encryption key indices of the multimedia programming of user's program request:
Smart card is searched according to described encryption key indices and is obtained encryption key;
Smart card utilizes described encryption key to calculate sub-key;
Smart card utilizes described sub-key that the numbering of described multimedia programming and the information of deducting fees are calculated, and obtains user side MAC value.
5. a multimedia programming order method is characterized in that, comprising:
Obtain numbering, input date, encryption key indices and the server end MAC value of the multimedia programming of user's program request from server end;
Numbering, input date, encryption key indices and the server end MAC value of described multimedia programming are sent to smart card;
When described smart card according to the numbering of described multimedia programming, throw in user side MAC value that date and encryption key indices obtain when identical with described server end MAC value, judge whether described smart card is in effective status;
When described smart card is in effective status, obtain the decruption key index from described server end;
Described decruption key index is sent to described smart card, so that described smart card obtains decruption key according to described decruption key index search;
Receive the described decruption key that described smart card sends;
Utilize described decruption key that described multimedia programming is decrypted and plays.
6. method according to claim 5 is characterized in that, also comprises:
Judge that the subscriber payment type is for wrapping year or monthly payment or deducting fees by program.
7. method according to claim 6 is characterized in that, when judging the subscriber payment type for bag year or monthly payment, describedly judges whether described smart card is in effective status and comprises:
From described smart card, read the closing date of bag year or monthly payment;
Judge whether current date surpasses the closing date of described bag year or monthly payment;
If current date surpasses the closing date of described bag year or monthly payment, then described smart card is in effective status;
If current date surpasses the closing date of described bag year or monthly payment, then described smart card is in disarmed state.
8. method according to claim 6 is characterized in that, when judging that the subscriber payment type is that described method also comprises when pressing pay per view:
Send the information of deducting fees of described multimedia programming to described smart card;
Described smart card obtains user side MAC value according to the numbering of described multimedia programming, the information of deducting fees and encryption key indices.
9. method according to claim 6 is characterized in that, when judging the subscriber payment type when pressing pay per view, describedly judges whether described smart card is in effective status and comprises:
From described smart card, read efficient multimedia program code and effective time;
Whether the numbering of judging the multimedia programming of current program request belongs in the described efficient multimedia program code;
If the numbering of the multimedia programming of current program request belongs to one in the described efficient multimedia program code, judge then whether the current time surpasses described effective time, if the current time does not surpass described effective time, then described smart card is in effective status, if the current time surpasses described effective time, then described smart card is in disarmed state;
If the numbering of the multimedia programming of current program request belongs to one in the described efficient multimedia program code, and the current time surpasses described effective time, perhaps the numbering of the multimedia programming of current program request does not belong in the described efficient multimedia program code one, then read the available balance in the described smart card, judge that described available balance is whether more than or equal to the expense of needs deduction, if described available balance is more than or equal to the expense of needs deduction, then described smart card is in effective status, described server end is deducted the expense that needs deduction from described smart card, if described available balance is less than the expense of needs deduction, then described smart card is in disarmed state.
10. a smart card is characterized in that, comprising:
First acquisition module is used for numbering, input date and encryption key indices according to the multimedia programming of user's program request, obtains user side MAC value;
Comparison module, whether be used for comparison server end MAC value identical with described user side MAC value;
First receiver module, being used for when described server end MAC value and subscriber terminal equipment identical with described user side MAC value judges when smart card is in effective status, receive the decruption key index that described subscriber terminal equipment sends, described decruption key index is that described subscriber terminal equipment obtains from server end;
Search module, be used for obtaining decruption key according to described decruption key index search;
First sending module is used for described decruption key is sent to described subscriber terminal equipment, so that described subscriber terminal equipment utilizes described decruption key that described multimedia programming is decrypted and plays.
11. smart card according to claim 10 is characterized in that, also comprises:
Second receiver module, be used to receive the multimedia programming of user's program request that subscriber terminal equipment sends numbering, throw in date, encryption key indices and server end MAC value, the numbering of described multimedia programming, input date, encryption key indices and server end MAC value are obtained from server end for described subscriber terminal equipment.
12., it is characterized in that described first acquisition module comprises according to claim 10 or 11 described smart cards:
First searches the unit, is used for searching according to described encryption key indices obtaining encryption key;
First computing unit is used to utilize described encryption key that the numbering and the input date of described multimedia programming are calculated, and obtains user side MAC value.
13., it is characterized in that described smart card also comprises according to claim 10 or 11 described smart cards:
The 3rd receiver module is used to receive the information of deducting fees of the multimedia programming of user's program request that described subscriber terminal equipment sends;
Described first acquisition module comprises:
Second searches the unit, is used for searching according to described encryption key indices obtaining encryption key;
Second computing unit is used to utilize described encryption key to calculate sub-key;
The 3rd computing unit is used to utilize described sub-key that the numbering of described multimedia programming and the information of deducting fees are calculated, and obtains user side MAC value.
14. a subscriber terminal equipment is characterized in that, comprising:
Second acquisition module, be used for from server end obtain the multimedia programming of user's program request numbering, throw in date, encryption key indices and server end MAC value;
Second sending module is used for numbering, input date, encryption key indices and the server end MAC value of described multimedia programming are sent to smart card;
First judge module, be used for when described smart card according to the numbering of described multimedia programming, throw in user side MAC value that date and encryption key indices obtain when identical with described server end MAC value, judge whether described smart card is in effective status;
The 3rd acquisition module is used for obtaining the decruption key index from described server end when described smart card is in effective status;
The 3rd sending module is used for described decruption key index is sent to described smart card, so that described smart card obtains decruption key according to described decruption key index search;
The 4th receiver module is used to receive the described decruption key that described smart card sends;
Deciphering and playing module are used to utilize described decruption key that described multimedia programming is decrypted and plays.
15. subscriber terminal equipment according to claim 14 is characterized in that, also comprises:
Second judge module is used to judge that the subscriber payment type is for wrapping year or monthly payment or deducting fees by program.
16. subscriber terminal equipment according to claim 15 is characterized in that, when described second judge module was judged the subscriber payment type for bag year or monthly payment, described first judge module comprised:
First reading unit is used for reading the closing date of wrapping year or monthly payment from described smart card;
First judging unit, be used to judge whether current date surpasses the closing date of described bag year or monthly payment, if current date surpasses the closing date of described bag year or monthly payment, then described smart card is in effective status, if current date surpasses the closing date of described bag year or monthly payment, then described smart card is in disarmed state.
17. subscriber terminal equipment according to claim 15 is characterized in that, judging the subscriber payment type when described second judge module is that described subscriber terminal equipment also comprises when pressing pay per view:
The 4th sending module is used for sending to described smart card the information of deducting fees of described multimedia programming;
Described smart card obtains user side MAC value according to the numbering of described multimedia programming, the information of deducting fees and encryption key indices.
18. subscriber terminal equipment according to claim 15 is characterized in that, judging the subscriber payment type when described second judge module is that described first judge module comprises when pressing pay per view:
Second reading unit is used for reading efficient multimedia program code and effective time from described smart card;
Second judging unit, whether the numbering that is used for judging the multimedia programming of current program request belongs to of described efficient multimedia program code;
The 3rd judging unit, when being used for numbering when the multimedia programming of the current program request of described second judgment unit judges and belonging to of described efficient multimedia program code, judge whether the current time surpasses described effective time, if the current time does not surpass described effective time, then described smart card is in effective status, if the current time surpasses described effective time, then described smart card is in disarmed state;
Third reading is got the unit, being used for numbering when the multimedia programming of the current program request of described second judgment unit judges belongs to one of described efficient multimedia program code and described the 3rd judgment unit judges current time and surpasses described effective time, perhaps when the numbering of the multimedia programming of the current program request of described second judgment unit judges does not belong in the described efficient multimedia program code one, read the available balance in the described smart card;
The 4th judging unit, be used for judging that available balance that described third reading gets the described smart card that reads the unit is whether more than or equal to the expense of needs deduction, if described available balance is more than or equal to the expense of needs deduction, then described smart card is in effective status, described server end is deducted the expense that needs deduction from described smart card, if described available balance is less than the expense of needs deduction, then described smart card is in disarmed state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010536632 CN102006515B (en) | 2010-11-08 | 2010-11-08 | Multimedia program ordering method, intelligent card and user terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010536632 CN102006515B (en) | 2010-11-08 | 2010-11-08 | Multimedia program ordering method, intelligent card and user terminal equipment |
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| Publication Number | Publication Date |
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| CN102006515A true CN102006515A (en) | 2011-04-06 |
| CN102006515B CN102006515B (en) | 2013-01-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070230393A1 (en) * | 2006-03-31 | 2007-10-04 | Shailendra Sinha | Wake on wireless network techniques |
| CN201063763Y (en) * | 2007-07-10 | 2008-05-21 | 吴怀正 | Digital signal condition receiving system |
| CN101212642A (en) * | 2006-12-25 | 2008-07-02 | 北京握奇数据系统有限公司 | Broadcast signal processing method, system, and receiver |
| CN201127083Y (en) * | 2007-09-19 | 2008-10-01 | 中兴通讯股份有限公司 | Equipment for implementing multimedia broadcast safety |
| CN101515966A (en) * | 2009-03-23 | 2009-08-26 | 北京握奇数据系统有限公司 | Smart card, terminal unit and method for realizing the business of network telephone |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070230393A1 (en) * | 2006-03-31 | 2007-10-04 | Shailendra Sinha | Wake on wireless network techniques |
| CN101212642A (en) * | 2006-12-25 | 2008-07-02 | 北京握奇数据系统有限公司 | Broadcast signal processing method, system, and receiver |
| CN201063763Y (en) * | 2007-07-10 | 2008-05-21 | 吴怀正 | Digital signal condition receiving system |
| CN201127083Y (en) * | 2007-09-19 | 2008-10-01 | 中兴通讯股份有限公司 | Equipment for implementing multimedia broadcast safety |
| CN101515966A (en) * | 2009-03-23 | 2009-08-26 | 北京握奇数据系统有限公司 | Smart card, terminal unit and method for realizing the business of network telephone |
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| CN102006515B (en) | 2013-01-16 |
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Address after: 100015 Beijing East Chaoyang District, West Gate eight West room eight Wan Hong West Street, Yan Dong business garden. Patentee after: BEIJING WATCHDATA Co.,Ltd. Address before: 100015 Beijing East Chaoyang District, West Gate eight West room eight Wan Hong West Street, Yan Dong business garden. Patentee before: BEIJING WATCH DATA SYSTEM Co.,Ltd. |
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Granted publication date: 20130116 Termination date: 20211108 |