CN103686251B - System, method and device for playing program stream in multimedia broadcasting service - Google Patents
System, method and device for playing program stream in multimedia broadcasting service Download PDFInfo
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- CN103686251B CN103686251B CN201210326168.2A CN201210326168A CN103686251B CN 103686251 B CN103686251 B CN 103686251B CN 201210326168 A CN201210326168 A CN 201210326168A CN 103686251 B CN103686251 B CN 103686251B
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Abstract
The invention discloses a system, method and device for playing a program stream in a multimedia broadcasting service. The method comprises the following steps: determining valid period information of valid period of a service key required by a client after a multimedia broadcasting service platform acquires service key acquisition request sent by the multimedia broadcasting service client, and sending the valid period information and the service key to the multimedia broadcasting service client to instruct the multimedia broadcasting service client to judge the effective time of the service key according to the valid period information; utilizing the service key to decode an encoded program stream key, and decoding and playing the program stream according to the decoded program stream key. Through the arrangement of the valid period information for the service key, a user is not required to ask for the service key from the multimedia broadcasting service platform through the multimedia broadcasting service client frequently, so that service flow is saved.
Description
Technical field
The present invention relates to filed of mobile multimedia broadcasting, more particularly, to a kind of program stream in multi-media broadcasting service is broadcast
Place system, method and device.
Background technology
Multi-media broadcasting service is a kind of business issuing television media content by broadcast mode, is characterized in TV matchmaker
The internal transmission that is unidirectional descending, a little arriving face held.Detailed process is that multi-media broadcasting service platform is first with program current cipher key
Program stream is encrypted, recycle business cipher key program current cipher key is encrypted, and by encryption program current cipher key with
Program stream issues together in broadcast channel, and the program stream then deciphering encryption by way of sending business cipher key to user is close
Key, recycles the program stream of the program current cipher key deciphering encryption of deciphering, thus realizing the broadcasting of program stream.
Multi-media broadcasting service platform averagely monthly updates a business cipher key at present, and plans the renewal of business cipher key
Cycle stretch-out was to three months.The business cipher key obtaining from multi-media broadcasting service platform is stored by multi-media broadcasting service client
In the user authentication module UAM chip of described client.In view of business cipher key may under this chip electricity after still long-term
Effectively, there is the danger of the propagation that is stolen, the design of prior art is：Exit in multi-media broadcasting service client every time
During multi-media broadcasting service, the user authentication module UAM chip in described client all can descend electricity, respectively, may be stored at this chip
In business cipher key also will be deleted.User is flat to multi-media broadcasting service using needing during multi-media broadcasting service again for next time
Platform requested service key.
Use the data analysiss of multi-media broadcasting service according to user, user is averagely every time using multi-media broadcasting service
Time is about 8 minutes, and can be using repeatedly in one day.According to existing technical scheme, it is possible that user was at one day
Interior for same multi-media broadcasting service repeatedly to the scene of multi-media broadcasting service platform request business cipher key.Transported according to existing network
Battalion's data statisticss, in the multi-media broadcasting service subscribed users one day more than 1/3rd, requested service key is more than 3 times.
With the continuous growth of number of users, because of the stream increasing and consuming of business cipher key request in multi-media broadcasting service
Amount increasingly increases severely, thus constraining the development further of multi-media broadcasting service.Therefore, at present in the urgent need to a kind of effective control
The method of business cipher key request number of times is to reduce the flow wasting in multi-media broadcasting service because of multiple requested service key.
Content of the invention
Program stream Play System in a kind of embodiment of the present invention multi-media broadcasting service of offer, method and device, in order to
Solve present in prior art due to the Business Stream caused by continually to multi-media broadcasting service platform request business cipher key
The problem of the amount wasting of resources.
The embodiment of the present invention employs the following technical solutions：
A kind of program stream Play System in multi-media broadcasting service, including multi-media broadcasting service platform and multi-media broadcast
Broadcast service customer end.Wherein,
Multi-media broadcasting service platform, the business cipher key for obtaining the transmission of multi-media broadcasting service client obtains please
Ask；Determine the expiry date information for characterizing business cipher key expiry date；And expiry date information and business cipher key are sent
To described multi-media broadcasting service client；Wherein, described business cipher key corresponds to described business cipher key and obtains request.
Multi-media broadcasting service client, for receiving and storing the described effect duration of multi-media broadcasting service platform transmission
Limit information and business cipher key, and receiving the multi-media broadcasting service program stream broadcasting instruction corresponding to described business cipher key
Afterwards, whether effectively described business cipher key is judged according to the described expiry date information of storage, when judged result is to be, using institute
State the program current cipher key of business cipher key deciphering encryption, and program current cipher key deciphering program stream is obtained according to deciphering and plays.
When the expiry date information for characterizing business cipher key expiry date is effective access times, then multimedia broadcasting
Service customer end specifically for：Determine whether the described effective access times storing are 0, when determining result is to be, judge institute
State business cipher key invalid；When determination result is no, judge described business cipher key effectively, and it is secondary to update effectively using of storage
Number；The mode updating effective access times of storage includes：The operation that effective access times of execution storage subtract one.
Multi-media broadcasting service platform specifically for：According to user daily using multi-media broadcasting service duration and program stream
In the key updating cycle, determine the program current cipher key update times in described duration, and described update times are defined as table
Levy effective access times of business cipher key expiry date；Or daily be defined as using using the number of times of multi-media broadcasting service by user
In the effective access times characterizing business cipher key expiry date.
When the expiry date information for characterizing business cipher key expiry date is effective time, then multi-media broadcasting service
Client specifically for：When determining whether storage time length in described client for the described business cipher key exceedes described effective
Long；When determining result is to be, judge that described business cipher key is invalid；When it is no for determining result, judge that described business cipher key has
Effect.
Beneficial effects of the present invention are as follows：
In such scheme provided in an embodiment of the present invention, by arranging effective deadline information so that many for business cipher key
When media broadcast service customer end judges that the business cipher key of its storage is effective according to this expiry date information, no longer to multimedia
Broadcasting service platform request obtains business cipher key, but directly can realize the broadcasting of program stream according to the business cipher key of storage,
So that user does not need frequently to pass through multi-media broadcasting service client to multi-media broadcasting service platform request business
Key, saves service traffics.
Brief description
Fig. 1 is the program stream player method flow chart in multi-media broadcasting service provided in an embodiment of the present invention；
Fig. 2 is the program stream Play System structure chart in multi-media broadcasting service provided in an embodiment of the present invention；
Fig. 3 is the program stream playing device schematic diagram in multi-media broadcasting service provided in an embodiment of the present invention；
Fig. 4 is the business cipher key dispensing device schematic diagram in multi-media broadcasting service provided in an embodiment of the present invention.
Specific embodiment
For avoiding user continually to pass through multi-media broadcasting service client when using multi-media broadcasting service to many matchmakers
Body broadcasting service platform request business cipher key, wastes service traffics, embodiments provides a kind of multi-media broadcasting service
In program stream Play System, method and device.It is provided for characterizing the effective of business cipher key by multi-media broadcasting service platform
The expiry date information in time limit is simultaneously sent to multi-media broadcasting service client, thus subsequent multimedia broadcasting service client exists
It is not necessary to directly close to multi-media broadcasting service platform request business after receiving the instruction of multi-media broadcasting service program stream broadcasting
Key, but first judge whether the business cipher key of multi-media broadcasting service client storage is effective according to this expiry date information,
When judging that the business cipher key being stored in described client is effective, directly utilize the program stream of described business cipher key deciphering encryption close
Key, and program current cipher key deciphering program stream is obtained according to deciphering and plays.Thus effectively reducing user to pass through multi-media broadcast
Broadcast service customer end to the number of times of multi-media broadcasting service platform request business cipher key, save service traffics.
Below in conjunction with Figure of description, embodiments of the invention are illustrated it will be appreciated that enforcement described herein
Example only with the description and interpretation present invention, be not limited to the present invention.And the reality in the case of not conflicting, in this explanation
Feature in applying example and implementing to arrange can be combined with each other.
Embodiment 1
Program stream broadcasting side based on above-mentioned basic thought, in a kind of multi-media broadcasting service provided in an embodiment of the present invention
Method flow chart is as shown in figure 1, specifically include following steps：
Step 101, the CPU of multi-media broadcasting service client（Hereinafter referred to as CPU）Obtain the instruction of program stream broadcasting.
Step 102, CPU send program current cipher key and business cipher key read requests to user authentication module UAM chip.
Wherein, the program current cipher key that multi-media broadcasting service client to be read and business cipher key both correspond to program stream and broadcast
Put the indicated program stream play of instruction.Usually, user authentication module UAM chip can be arranged on multi-media broadcasting service visitor
In the end of family.
In the embodiment of the present invention, the expiry date information characterizing business cipher key expiry date can be effective access times,
It can also be effective time.
Step 103, UAM chip, after receiving above-mentioned read requests, judge whether the business cipher key of itself storage is effective.
Concrete judge process can include：
UAM chip determines whether effective access times of the business cipher key of storage are zero, when determining result is to be, judges
Described business cipher key is invalid, then execution step 106；Determining that result is no, judging described business cipher key effectively, execution step
104.
Optionally, multi-media broadcasting service client can be made an appointment for characterizing industry with multi-media broadcasting service platform
The expiry date information of business key expiry date, multi-media broadcasting service client, according to agreement, can arrange expiry date letter
Breath, and be stored in the UAM chip of multi-media broadcasting service client.So multi-media broadcasting service client acquisition is many
Media broadcast business program stream broadcasting instruction after, directly according to indicated by UAM chip-stored is corresponding to this instruction play section
The expiry date information of mesh stream, judges whether the corresponding business cipher key storing is effective；When judged result is to be, execution step
104, otherwise, execution step 106.
Step 104, the deciphering of UAM chip business cipher key are stored in advance in the program current cipher key of the encryption in this chip, more
Newly it is stored in effective access times of the business cipher key of this chip, and send, to CPU, the program current cipher key that deciphering obtains.Wherein,
The mode updating effective access times of business cipher key of storage is to subtract one by effective access times of storage.
Step 105, the CPU program current cipher key deciphering program stream receiving, and realize the broadcasting of program stream.
Step 106, CPU send business cipher key request to multi-media broadcasting service platform.
Step 107, multi-media broadcasting service platform determine business according to user to the service condition of multi-media broadcasting service
Effective access times of key.
Multi-media broadcasting service platform sets up a viewership statistics information group for each user, and according to multimedia broadcasting industry
The rating record information that business client provides constantly updates viewership statistics information group.Wherein, viewership statistics information group can comprise
Four viewership statistics information, respectively：User is for the last time using the multi-media broadcasting service date（The renewal foundation of this information
For：Multi-media broadcasting service client reports the date of rating record information for the last time）, user uses multi-media broadcasting service
Natural law, this day accumulative duration using multi-media broadcasting service（Referred to as this day adds up rating duration）, and daily using many
The duration of media broadcast business（Referred to as average daily rating duration）.
Further, the rating record information that described multi-media broadcasting service client provides is multi-media broadcasting service visitor
Family end generates to the service condition of multi-media broadcasting service according to user, and concrete generating process is：
When multi-media broadcasting service client records user is intended for single use multi-media broadcasting service, watch time was more than 15 seconds
The program channel ID planting, and record initial time and the end time that described user watches this channel, the wherein end time is with many
Media broadcast service customer end local zone time is defined.If the user while when being intended for single use multi-media broadcasting service, repeatedly watching same
One program channel, and each watch time is more than 15 seconds, then each receipts to this channel for the multi-media broadcasting service client
Record respectively depending on initial time, do not merge record.Those information of multi-media broadcasting service client records are rating
Record information.
When user selects to exit multi-media broadcasting service, multi-media broadcasting service client will close the visible boundary of user
Face, simultaneously backstage to multi-media broadcasting service platform send with regard to user this use multimedia broadcast television business rating
Record information.If the user while multi-media broadcasting service client restarts multi-media broadcasting service when reporting rating record information,
Then described client normally starts multi-media broadcasting service, and terminates reporting of this rating record information, and thinks this time receipts
Report failure depending on record information.No matter rating record information reports finishes, and still reports failure, described client all can be deleted automatically
Except old rating record information.If user does not ask this to play any program stream, user exits multimedia broadcasting industry
During business client, described client need not report rating record information.
Multi-media broadcasting service platform updates rating according to the rating record information that multi-media broadcasting service client provides
Statistical information group, specifically includes：
（1）According to multi-media broadcasting service client, this reports day of rating record information to multi-media broadcasting service platform
Phase, judge this report the date whether with viewership statistics information group in " user is for the last time using the multi-media broadcasting service date "
Identical, if it is not the same, then " user uses the natural law of multi-media broadcasting service " in viewership statistics information group Jia one, otherwise,
User uses the natural law of multi-media broadcasting service constant.
（2）Multi-media broadcasting service platform is according to the initial time of the user's viewing channel in rating record information and end
Time, determine that user watches the duration of described channel, merge and add up to add up rating duration into this day.And in daily morning zero
Point, updates the average daily rating duration of user and is added up the clearing of rating duration this day.Wherein, the average daily rating duration of user is permissible
Be can be calculated by below equation [1]：
The average daily rating duration * of the average daily rating duration=user of user（User uses the natural law -1 of multi-media broadcasting service）/
User uses natural law+this day accumulative rating duration/user of multi-media broadcasting service to use the natural law [1] of multi-media broadcasting service
（3）Multi-media broadcasting service platform determines according to the average daily rating duration of user and the update cycle of program current cipher key
Effective access times of business cipher key, concrete determination mode can adopt following formula [2]：Effective access times of business cipher key=
The update cycle [2] of the average daily rating duration/program current cipher key of user
I.e. effective access times of business cipher key are the program current cipher key update times in the average daily rating duration of user.By
It is for program current cipher key is decrypted with operation in business cipher key, therefore when program current cipher key occurs to update, UAM chip
Using business cipher key, new program current cipher key will be decrypted.Often update a program current cipher key, the having of business cipher key
Effect access times are all performed the operation that subtracts.
In order to ensure the safety of multi-media broadcasting service, typically can also be to effective access times setting of business cipher key
The upper limit.Determine effective access times of business cipher key to multi-media broadcasting service platform and multi-media broadcasting service using the method
The transformation demand very little of client.
Step 108, multi-media broadcasting service platform send for business cipher key request to multi-media broadcasting service client
Response message, described response message comprises effective access times of business cipher key and business cipher key.
Step 109, CPU pass through to execute the pretreatment such as the parsing to this response message, obtain business from this response message
Key and effective access times of business cipher key.
Step 110, CPU send the effective access times parsing the business cipher key obtaining and business cipher key to UAM chip.
Step 111, UAM chip utilize the business cipher key that CPU sends, the program current cipher key of deciphering encryption, and execute CPU
After the operation that the effective access times sending subtract, it is stored in using executing the effective access times renewal obtaining after this operation
Effective access times in UAM chip.
Step 112, UAM chip send, to CPU, the program current cipher key that deciphering obtains.
Step 113, the CPU program current cipher key deciphering program stream receiving, and realize the broadcasting of program stream, flow process is tied
Bundle.
In actual applications, program current cipher key typically can update once every 300 seconds, and by multimedia is used to user
The statistical analysiss of the related data of broadcasting service can draw, user is averagely about 8 using the time of multi-media broadcasting service every time
Minute, that is, on average, in the average daily rating duration of user, program current cipher key typically only updates once.That is, user
During using multi-media broadcasting service every time, general can occur once to obtain program current cipher key using business cipher key deciphering
Operation.Therefore optional, it is also possible to daily be characterized using the number of times of multi-media broadcasting service with user in the embodiment of the present invention
Effective access times of business cipher key.
In order to obtain user daily using the number of times of multi-media broadcasting service, multi-media broadcasting service platform is each user
The viewership statistics information group set up includes：For the last time using the multi-media broadcasting service date, user uses multi-media broadcast to user
Broadcast the natural law of business, this day accumulative number of times using multi-media broadcasting service, and daily use the secondary of multi-media broadcasting service
Number.Wherein it is determined that user using the natural law of multi-media broadcasting service method and above-mentioned for determining that user uses multi-media broadcast
The natural law broadcasting business is consistent；The accumulative number of times using multi-media broadcasting service can be according to reporting of user viewership statistics information within this day
Number of times add up to obtain, and in daily morning zero point, this day accumulative number of times using multi-media broadcasting service is reset；Daily make
With the number of times of multi-media broadcasting service, that is, effective access times of business cipher key can obtain according to following formula [3]：
User daily using multi-media broadcasting service number of times=user daily using the number of times * of multi-media broadcasting service（With
Family uses the natural law -1 of multi-media broadcasting service）/ user added up to use multimedia using natural law+this day of multi-media broadcasting service
Number of times/the user of broadcasting service uses the natural law [3] of multi-media broadcasting service
The embodiment of the present invention to characterize business cipher key in multimedia broadcasting by using effective access times of business cipher key
In the UAM chip of service customer end, the expiry date of storage, receives multimedia broadcasting industry in multi-media broadcasting service client
It is not necessary to directly to multi-media broadcasting service platform request business cipher key after business program stream broadcasting instruction, but first judge described
In the UAM chip of client, whether effectively the business cipher key of storage, is judging the business of the UAM chip being stored in described client
When key is effective, directly utilize the program current cipher key of described business cipher key deciphering encryption, and program current cipher key is obtained according to deciphering
Deciphering program stream is simultaneously play.Thus effectively reducing user to pass through multi-media broadcasting service client to multi-media broadcasting service
The number of times of platform request business cipher key, saves service traffics.
Embodiment 2
The present embodiment 2 assumes that multi-media broadcasting service client is used for the effective of the expiry date of storage sign business cipher key
Deadline information is the effective time of business cipher key, and multi-media broadcasting service platform can use multi-media broadcasting service according to user
Custom（Such as user watches the duration of certain channel）Or the broadcast mode of program stream（Such as loop play）Close to determine business
The effective time of key.
For example it is directed to the channel of loop play program stream in multi-media broadcasting service, multi-media broadcasting service platform can will save
The cycle of mesh stream loop play, or the time span value slightly longer than the loop play cycle of program stream be defined as business cipher key
Effective time.
For another example it is directed to the channel in multi-media broadcasting service, program stream broadcasting is limited between sometimes, such as A channel program stream
Reproduction time is at 17 points to 24 points, and understands that user often begins to use multi-media broadcasting service and asks in 19 points about according to statistics
Seek the business cipher key for A channel, then user can be passed through multi-media broadcasting service client's end points by multi-media broadcasting service platform
Hit the time point playing this channel program stream（19 points）At a distance of channel program stream broadcasting by time point（24 points）Between when
Between length, be defined as the effective time of business cipher key, and in issuing service key, this effective time be also handed down to multimedia
Broadcasting service client.
For another example it is directed to certain user, if its custom persistently watches using multi-media broadcasting service that the time span of program stream is 5
Hour（I.e. the lasting watch time length of program stream is 5 hours）, then pass through according to multimedia in multi-media broadcasting service platform
The modes such as the rating record information that broadcasting service client reports, obtain for characterizing continuing of this rule accustomed to using of user
After watch time length, this lasting watch time length is defined as the effective time of business cipher key.
The present embodiment to characterize the expiry date of business cipher key by using the effective time of business cipher key, in multi-media broadcast
Broadcast after service customer end receives the instruction of multi-media broadcasting service program stream broadcasting it is not necessary to directly put down to multi-media broadcasting service
Platform requested service key, but whether effectively first judge the business cipher key of storage in the UAM chip of described client, judging to deposit
Be stored in the UAM chip of described client business cipher key effective when, directly utilize the program stream of described business cipher key deciphering encryption
Key, and program current cipher key deciphering program stream is obtained according to deciphering and plays.So avoid user and use multi-media broadcast
Broadcast during business viewing channel program stream because the continuous renewal of program current cipher key and restart multi-media broadcasting service continually to many
Media broadcast business platform requested service key, thus save service traffics.
Corresponding to method provided in an embodiment of the present invention, the embodiment of the present invention is also provided in a kind of multi-media broadcasting service
Program stream Play System.The concrete structure schematic diagram of this system is as shown in Fig. 2 include multi-media broadcasting service platform 22 and many matchmakers
Body broadcasting service client 21, being specifically described as follows of its function：
Multi-media broadcasting service platform 22, the business cipher key for obtaining multi-media broadcasting service client 21 transmission obtains
Request；Determine the expiry date information for characterizing business cipher key expiry date；And expiry date information and business cipher key are sent out
Give multi-media broadcasting service client 21；Wherein, this business cipher key corresponds to above-mentioned business cipher key and obtains request.
Expiry date information can be effective access times of business cipher key or the effective time of business cipher key.Work as effect duration
Limit information be business cipher key effective access times when, multi-media broadcasting service platform 22 specifically for：Daily made according to user
With multi-media broadcasting service duration and program current cipher key update cycle, determine user daily using in multi-media broadcasting service duration
Program current cipher key update times, and by this update times be defined as characterize business cipher key expiry date effective using time
Number；Or user is daily defined as characterizing effectively making of business cipher key expiry date using the number of times of multi-media broadcasting service
Use number of times.
Multi-media broadcasting service client 21, for receiving and storing the effect duration of multi-media broadcasting service platform 22 transmission
Limit information and business cipher key, and after receiving the instruction of multi-media broadcasting service program stream broadcasting, according to storage corresponding to this
Whether effectively the expiry date information of the indicated program stream play of program stream broadcasting instruction, judge corresponding business cipher key,
When judged result is to be, using the program current cipher key of this business cipher key deciphering encryption, and program current cipher key solution is obtained according to deciphering
Close program stream is simultaneously play.
When effective access times that expiry date information is business cipher key, multi-media broadcasting service client 21 is specifically used
In：Determine whether the effective access times storing are zero, when determining result is to be, judge that described business cipher key is invalid；True
When to determine result be no, judge that described business cipher key is effective, and update effective access times of storage；Update effective use of storage
The mode of number of times includes：The operation that effective access times of execution storage subtract one.
When expiry date information be business cipher key effective time when, multi-media broadcasting service client 21 specifically for：
Determine whether business cipher key storage time length in the client exceedes described effective time；When determining result is to be, sentence
The described business cipher key that breaks is invalid；When it is no for determining result, judge that described business cipher key is effective.
Said system to characterize business by using effective access times of business cipher key or the effective time of business cipher key
The expiry date of key, multi-media broadcasting service client 21 receive multi-media broadcasting service program stream broadcasting instruction after,
Do not need directly to multi-media broadcasting service platform 22 requested service key, but first judge multi-media broadcasting service client 21
Whether the business cipher key of middle storage is effective, when judging that the business cipher key being stored in multi-media broadcasting service client 21 is effective,
Directly utilize the program current cipher key of this business cipher key deciphering encryption, and program current cipher key deciphering program stream is obtained according to deciphering and broadcasts
Put.Thus it is close to multi-media broadcasting service platform request business by multi-media broadcasting service client to effectively reduce user
The number of times of key, saves service traffics.
Corresponding to the program stream player method in a kind of multi-media broadcasting service provided in an embodiment of the present invention, the present invention is real
Applying example also provides a kind of program stream playing device in multi-media broadcasting service, in order to solve present in prior art due to frequency
The problem of the service traffics wasting of resources caused by numerously to multi-media broadcasting service platform request business cipher key.Wherein, this dress
The concrete structure put is as shown in figure 3, include：
Memory element 31, for corresponding to storage service key and the expiry date letter for characterizing business cipher key expiry date
Breath；
Play instruction obtaining unit 32, for obtaining the instruction of multi-media broadcasting service program stream broadcasting；
Business cipher key Effective judgement unit 33, for playing instruction obtaining unit 32 acquisition program stream broadcasting instruction
Afterwards, the expiry date letter of the program stream play according to indicated by memory element 31 storage is corresponding to the instruction of above-mentioned program stream broadcasting
Breath, judges whether the business cipher key corresponding to this program stream of memory element 31 storage is effective；
Program current cipher key decryption unit 34, for when business cipher key Effective judgement unit 33 judged result is to be, sharp
Program current cipher key with the business cipher key deciphering encryption of memory element 31 storage；
Program stream broadcast unit 35, for obtaining program current cipher key solution according to the deciphering of described program current cipher key decryption unit 34
Close program stream simultaneously carries out the broadcasting of program stream.
When effective access times that expiry date information is business cipher key, business cipher key Effective judgement unit 33 is concrete
Including：
Number of times determining module 331, for, after playing instruction obtaining unit 32 acquisition program stream broadcasting instruction, determining storage
Effective access times whether be zero；
Judge module 332, when the determination result for obtaining in number of times determining module 331 is to be, judges corresponding business
Key is invalid；The determination result obtaining in number of times determining module 331 is no, judges that corresponding business cipher key is effective；
Update module 333, for when judge module 332 judges that business cipher key is effective, updating the business cipher key of storage
Effective access times.
When described expiry date information is effective time, business cipher key Effective judgement unit 33 specifically includes：
Effective time determining module 334, for, after playing instruction obtaining unit 32 acquisition program stream broadcasting instruction, determining
Whether storage time length in described memory element 31 for the described business cipher key exceedes described effective time；
Judge module 335, when the determination result for obtaining in effective time determining module 334 is to be, judges described industry
Business key is invalid；When the determination result that effective time determining module 334 obtains is no, judge that described business cipher key is effective.
Additionally, corresponding to the business cipher key sending method in a kind of multi-media broadcasting service proposing above, the present invention is real
Applying example also provides a kind of business cipher key dispensing device in multi-media broadcasting service, as shown in figure 4, specifically including：
Business cipher key asks obtaining unit 41, and the business cipher key for obtaining the transmission of multi-media broadcasting service client obtains
Request；
Business cipher key expiry date determining unit 42, obtains for asking obtaining unit 41 to receive business cipher key in business cipher key
After taking request, determine the expiry date information of the expiry date of business cipher key for characterizing multimedia broadcasting client request.
Business cipher key transmitting element 43, for the expiry date information determining business cipher key expiry date determining unit 42
It is sent to multimedia broadcasting client with business cipher key.
When the expiry date information of the expiry date of the business cipher key for characterizing multimedia broadcasting client request is industry
During effective access times of business key, business cipher key expiry date determining unit 42 specifically includes：
Update times determining module 421, obtains request for asking obtaining unit 41 to receive business cipher key in business cipher key
Afterwards, according to user daily using multi-media broadcasting service duration and program current cipher key update cycle, determine the section in described duration
Mesh stream secrete key update times；
Effective degree determining module 422, the update times for determining update times determining module 421 be defined as
Characterize effective access times of the business cipher key of business cipher key expiry date；Or
Business cipher key expiry date determining unit 42 specifically includes：
Access times determining module 423, obtains request for asking obtaining unit 41 to receive business cipher key in business cipher key
Afterwards, determine user daily using the number of times of multi-media broadcasting service；
Effective degree determining module 424, the number of times for determining access times determining module 423 is defined as characterizing
Effective access times of the business cipher key of business cipher key expiry date.
In sum, to characterize business by using effective access times of business cipher key or the effective time of business cipher key
The expiry date that key stores in multi-media broadcasting service client, multi-media broadcasting service client is receiving multimedia
It is not necessary to directly to multi-media broadcasting service platform request business cipher key after the instruction of broadcast service program stream broadcasting, but first sentence
In described client of breaking, whether the business cipher key of storage is effective, when judging that the business cipher key being stored in described client is effective,
Directly utilize the program current cipher key of described business cipher key deciphering encryption, and program current cipher key deciphering program stream is obtained simultaneously according to deciphering
Play.Thus effectively reducing user to pass through multi-media broadcasting service client to multi-media broadcasting service platform request business
The number of times of key, saves service traffics.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (8)
1. the program stream Play System in a kind of multi-media broadcasting service, including multi-media broadcasting service platform and multimedia broadcasting
Service customer end it is characterised in that：
Multi-media broadcasting service platform, the business cipher key for obtaining the transmission of multi-media broadcasting service client obtains request；Really
The fixed expiry date information for characterizing business cipher key expiry date；And expiry date information and business cipher key are sent to described
Multi-media broadcasting service client；Wherein, described business cipher key corresponds to described business cipher key and obtains request；
Multi-media broadcasting service client, for receiving and storing the described expiry date letter of multi-media broadcasting service platform transmission
Breath and business cipher key, and after receiving corresponding to the multi-media broadcasting service program stream broadcasting instruction of described business cipher key, root
Whether effectively to judge described business cipher key according to the described expiry date information of storage, when judged result is to be, using described industry
The program current cipher key of business secret key decryption encryption, and program current cipher key deciphering program stream is obtained according to deciphering and plays；
Wherein, described expiry date information is effective access times；Then
Multi-media broadcasting service client specifically for：Determine whether the described effective access times storing are 0, determining result
During for being, judge that described business cipher key is invalid；When it is no for determining result, judges described business cipher key effectively, and update storage
Effective access times；
The mode updating effective access times of storage includes：The operation that effective access times of execution storage subtract one；
Wherein, multi-media broadcasting service platform specifically for：According to user daily using multi-media broadcasting service duration and program
The stream secrete key update cycle, determine the program current cipher key update times in described duration, and by described update times be defined as
Characterize effective access times of business cipher key expiry date；Or user is daily defined as using the number of times of multi-media broadcasting service
For characterizing effective access times of business cipher key expiry date.
2. the system as claimed in claim 1 is it is characterised in that described expiry date information is effective time；Then
Multi-media broadcasting service client specifically for：Determine storage time length in described client for the described business cipher key
Whether exceed described effective time；When determining result is to be, judge that described business cipher key is invalid；When it is no for determining result,
Judge that described business cipher key is effective.
3. the program stream player method in a kind of multi-media broadcasting service is it is characterised in that include：
Multi-media broadcasting service client obtains the instruction of multi-media broadcasting service program stream broadcasting；
According to the expiry date information corresponding to described program stream of storage, judge the business corresponding to described program stream of storage
Whether key is effective；
When judged result is to be, using the program current cipher key of described business cipher key deciphering encryption；And
Program current cipher key deciphering program stream is obtained according to deciphering and plays；
Wherein, described expiry date information is effective access times of business cipher key, and, described effective access times are multimedias
Broadcasting service platform according to user daily using multi-media broadcasting service duration and program current cipher key update cycle, determination described
Program current cipher key update times in duration；Or for user daily using the number of times of multi-media broadcasting service；Then
The expiry date information of the expiry date for characterizing business cipher key according to storage judges whether described business cipher key has
Effect, specifically includes：
Multi-media broadcasting service client determines whether effective access times of the business cipher key of storage are zero, in determination result is
When being, judge that described business cipher key is invalid；Determining that result is no, judging described business cipher key effectively, and update the industry of storage
Effective access times of business key.
4. method as claimed in claim 3 is it is characterised in that described expiry date information is effective time；Then
The expiry date information of the expiry date for characterizing business cipher key according to storage judges whether described business cipher key has
Effect, specifically includes：
Multi-media broadcasting service client determines whether storage time length in described client for the described business cipher key exceedes
Described effective time；When determining result is to be, judge that described business cipher key is invalid；When it is no for determining result, judge described
Business cipher key is effective.
5. the business cipher key sending method in a kind of multi-media broadcasting service is it is characterised in that include：
Multi-media broadcasting service platform obtains the business cipher key acquisition request that multi-media broadcasting service client sends；
Multi-media broadcasting service platform determines the effect duration of the expiry date of the business cipher key for characterizing described client request
Limit information；And
Expiry date information and business cipher key are sent to described client, indicate described client according to expiry date information
When judging that business cipher key is effective, the program current cipher key of the business cipher key deciphering encryption according to the storage of described client, Yi Jigen
Obtain program current cipher key deciphering program stream according to deciphering and play；
Wherein, described expiry date information is effective access times of business cipher key；Then
Multi-media broadcasting service platform according to user daily using multi-media broadcasting service duration and program current cipher key update cycle,
Determine the program current cipher key update times in described duration, and described update times are defined as effective for characterizing business cipher key
Effective access times of the business cipher key in time limit；Or
User is daily defined as close for characterizing business by multi-media broadcasting service platform using the number of times of multi-media broadcasting service
Effective access times of the business cipher key of key expiry date.
6. the program stream playing device in a kind of multi-media broadcasting service is it is characterised in that include：
Memory element, for corresponding to storage service key and the expiry date information for characterizing business cipher key expiry date；
Play instruction obtaining unit, for obtaining the instruction of multi-media broadcasting service program stream broadcasting；
Business cipher key Effective judgement unit, for playing after instruction obtaining unit obtains the instruction of program stream broadcasting, according to depositing
Storage unit storage the expiry date information corresponding to described program stream, judge memory element store corresponding to described program stream
Business cipher key whether effective；
Program current cipher key decryption unit, for when business cipher key Effective judgement unit judges result is to be, using described industry
The program current cipher key of business secret key decryption encryption；
Program stream broadcast unit, for obtaining program current cipher key deciphering program stream according to the deciphering of described program current cipher key decryption unit
And play；
Wherein, described expiry date information is effective access times of business cipher key, and, described effective access times are multimedias
Broadcasting service platform according to user daily using multi-media broadcasting service duration and program current cipher key update cycle, determination described
Program current cipher key update times in duration；Or for user daily using the number of times of multi-media broadcasting service；Then
Business cipher key Effective judgement unit specifically includes：
Number of times determining module, for, after playing instruction obtaining unit acquisition program stream broadcasting instruction, determining and having described in storage
Whether effect access times are zero；
Judge module, when the determination result for obtaining in number of times determining module is to be, judges that described business cipher key is invalid；Secondary
The determination result that number determining module obtains is no, judges that described business cipher key is effective；
Update module, for when judge module judges that described business cipher key is effective, updating the effective of the business cipher key storing
Access times.
7. device as claimed in claim 6 is it is characterised in that described expiry date information is effective time；Then
Business cipher key Effective judgement unit specifically includes：
Effective time determining module, for, after playing instruction obtaining unit acquisition program stream broadcasting instruction, determining described business
Whether storage time length in described memory element for the key exceedes described effective time；
Judge module, when the determination result for obtaining in effective time determining module is to be, judges that described business cipher key is invalid；
When the determination result that effective time determining module obtains is no, judge that described business cipher key is effective.
8. the business cipher key dispensing device in a kind of multi-media broadcasting service is it is characterised in that include：
Business cipher key asks obtaining unit, and the business cipher key for obtaining the transmission of multi-media broadcasting service client obtains request；
Business cipher key expiry date determining unit, please for receiving business cipher key acquisition in described business cipher key request obtaining unit
After asking, determine the expiry date information of the expiry date of business cipher key for characterizing described client request；
Business cipher key transmitting element, for the expiry date information that determines described business cipher key expiry date determining unit and industry
Business key is sent to described client, indicates described client when judging that business cipher key is effective according to expiry date information,
The program current cipher key of the business cipher key deciphering encryption according to the storage of described client, and program current cipher key solution is obtained according to deciphering
Close program stream is simultaneously play；
Wherein, described expiry date information is effective access times；Then
Business cipher key expiry date determining unit specifically includes：
Update times determining module, for described business cipher key request obtaining unit receive business cipher key obtain request after, root
According to user daily using multi-media broadcasting service duration and program current cipher key update cycle, determine that the program stream in described duration is close
Key update times；
Effective degree determining module, the described update times for determining update times determining module are defined as characterizing industry
Effective access times of the business cipher key of business key expiry date；Or
Business cipher key expiry date determining unit specifically includes：
Access times determining module, for described business cipher key request obtaining unit receive business cipher key obtain request after, really
Determine user daily using the number of times of multi-media broadcasting service；
Effective degree determining module, the number of times for determining access times determining module is defined as having for characterizing business cipher key
Effective access times of the business cipher key in effect time limit.
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| CN201210326168.2A CN103686251B (en) | 2012-09-05 | 2012-09-05 | System, method and device for playing program stream in multimedia broadcasting service |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210326168.2A CN103686251B (en) | 2012-09-05 | 2012-09-05 | System, method and device for playing program stream in multimedia broadcasting service |
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| Publication Number | Publication Date |
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| CN103686251A CN103686251A (en) | 2014-03-26 |
| CN103686251B true CN103686251B (en) | 2017-02-22 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106878010A (en) * | 2017-02-22 | 2017-06-20 | 美的智慧家居科技有限公司 | Encryption and decryption method and device based on security chip key pair |
| EP3965372A1 (en) * | 2018-05-15 | 2022-03-09 | Telefonaktiebolaget LM Ericsson (publ) | Signaling optimization in 3gpp analytics |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101047829A (en) * | 2006-03-30 | 2007-10-03 | 华为技术有限公司 | Mobile multimedia service implementing method and condition receiving system |
| CN101166259A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Mobile phone TV service protection method, system, mobile phone TV server and terminal |
| WO2008138677A1 (en) * | 2007-05-15 | 2008-11-20 | Nokia Corporation | Methods, apparatuses, system and computer programs for key update |
| CN102045160A (en) * | 2009-10-15 | 2011-05-04 | 中国移动通信集团公司 | Method and equipment for updating service key |
| CN102123390A (en) * | 2010-01-07 | 2011-07-13 | 中国移动通信集团公司 | Method, device and terminal for processing service keys |
-
2012
- 2012-09-05 CN CN201210326168.2A patent/CN103686251B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047829A (en) * | 2006-03-30 | 2007-10-03 | 华为技术有限公司 | Mobile multimedia service implementing method and condition receiving system |
| CN101166259A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Mobile phone TV service protection method, system, mobile phone TV server and terminal |
| 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 |
| WO2008138677A1 (en) * | 2007-05-15 | 2008-11-20 | Nokia Corporation | Methods, apparatuses, system and computer programs for key update |
| CN102045160A (en) * | 2009-10-15 | 2011-05-04 | 中国移动通信集团公司 | Method and equipment for updating service key |
| CN102123390A (en) * | 2010-01-07 | 2011-07-13 | 中国移动通信集团公司 | Method, device and terminal for processing service keys |
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| Publication number | Publication date |
|---|---|
| CN103686251A (en) | 2014-03-26 |
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