CN108337561A - A kind of local DRM video flowings decryption method based on HTTPServer inside iOS clients - Google Patents
A kind of local DRM video flowings decryption method based on HTTPServer inside iOS clients Download PDFInfo
- Publication number
- CN108337561A CN108337561A CN201710045988.7A CN201710045988A CN108337561A CN 108337561 A CN108337561 A CN 108337561A CN 201710045988 A CN201710045988 A CN 201710045988A CN 108337561 A CN108337561 A CN 108337561A
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- CN
- China
- Prior art keywords
- local
- httpserver
- ios
- drm
- player
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000015654 memory Effects 0.000 claims description 6
- 230000009191 jumping Effects 0.000 claims description 3
- 241001269238 Data Species 0.000 claims 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of local DRM video flowings decryption methods based on HTTPServer inside iOS clients; in the present invention; video file is encrypted in server end first; then iOS clients are locally downloading encrypted DRM videos again; then the decryption scheme that is consulted by local and server decrypts video; it finally plays out, if other people get and have downloaded the local DRM video files of completion and can not directly play, thus protects the copyright of video.
Description
Technical field
The present invention relates to field of video broadcasting technology, specially a kind of sheet based on HTTPServer inside iOS clients
Ground DRM video flowing decryption methods.
Background technology
IOS builds at end and starts internal HTTPServer as the network server of the locals iOS player to load and solve
The DRM video files that close iOS is locally stored realize the broadcasting of DRM videos；In the prior art, iOS mobile phones, which have been locally-downloaded, does not add
It is primary or third party's player directly plays by iOS after close video file.The shortcomings that prior art：Video file can be with
It is obtained and is played by other people, completely without safeguard measure.
Invention content
The purpose of the present invention is to provide a kind of local DRM video flowings solutions based on HTTPServer inside iOS clients
Decryption method, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：One kind is based on HTTPServer inside iOS clients
Local DRM video flowings decryption method, include the following steps：
A, iOS client wants will play some DRM file, load the corresponding addresses url of the video with player first；
B, player is sent on network request to the local HTTPServer at the ends iOS；
C, local HTTPServer loads the DRM files；
D, local HTTPServer is got by encrypted DRM files stream；
E, local HTTPServer decryption of drm file streams；
F, the video that local HTTPServer is sent after decryption flows to player；
G, the video after local player plays decryption.
Preferably, decryption method includes the following steps in the step E：
A, iOS clients download encrypted DRM video files from server end first；
B, the HTTPServer of iOS client terminal start-ups local, and monitor some port numbers；Wherein, port numbers are by developer
It makes by oneself；
C, player loads the video url to be played, and asks local HTTPServer servers；
D, the local HTTPServer of iOS clients is received after the http request that player is sent out, and returns to iOS visitors
Family end request results；
E, the local HTTPServer of iOS clients obtains start parameters according to the Range fields of http request；
F, the parts header of local DRM video files are parsed；
G, decryption of drm file encryption part, since encrypted fields are all by des encryption, decruption key is all previously stored in
In mobile phone EMS memory；
H, the local HTTPServer of iOS clients uses decryption according to the count got above and the value of length
Key rotation decrypts encrypted field, and is stored in iOS mobile phone EMS memories；
I, after the local HTTPServer of iOS clients does different processing according to the start parameters got, number
According to player is passed back, played out by player.
Preferably, the local HTTPServer of iOS clients needs the place done according to start parameters in the step I
Reason method includes the following steps：
If A, start parameters will return to all decryption numbers equal to the local HTTPServer of 0, iOS clients
According to clear data to player；
If B, start parameters are more than 0 and less than the original length of encryption part, the locals of iOS clients
HTTPServer is by the ciphertext data after returning to start length values and clear data to player；
If C, start parameters are more than the original length of encryption part, according to start parameters, the original length of encryption data
Degree and encrypted length calculate file jump location and return data to broadcasting after jumping to the corresponding position of DRM files
Device.
Compared with prior art, the beneficial effects of the invention are as follows：In the present invention, video file adds in server end first
Close, then iOS clients are locally downloading encrypted DRM videos again, the solution then consulted by local and server
Close scheme decrypts video, finally plays out, if other people, which get, has downloaded the local DRM video files of completion simultaneously
It cannot directly play, thus protect the copyright of video.
Description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the decryption flow chart of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：It is a kind of based on HTTPServer inside iOS clients
Local DRM video flowings decryption method, includes the following steps：
A, iOS client wants will play some DRM file, load the corresponding addresses url of the video with player first；
B, player is sent on network request to the local HTTPServer at the ends iOS；
C, local HTTPServer loads the DRM files；
D, local HTTPServer is got by encrypted DRM files stream；
E, local HTTPServer decryption of drm file streams；
F, the video that local HTTPServer is sent after decryption flows to player；
G, the video after local player plays decryption.
In the present embodiment, decryption method includes the following steps in step E：
A, iOS clients download encrypted DRM video files from server end first；
B, the HTTPServer of iOS client terminal start-ups local, and monitor some port numbers；Wherein, port numbers are by developer
It makes by oneself；
C, player loads the video url to be played, and asks local HTTPServer servers；
D, the local HTTPServer of iOS clients is received after the http request that player is sent out, and returns to iOS visitors
Family end request results；
E, the local HTTPServer of iOS clients obtains start parameters according to the Range fields of http request；
F, the parts header of local DRM video files are parsed；
G, decryption of drm file encryption part, since encrypted fields are all by des encryption, decruption key is all previously stored in
In mobile phone EMS memory；
H, the local HTTPServer of iOS clients uses decryption according to the count got above and the value of length
Key rotation decrypts encrypted field, and is stored in iOS mobile phone EMS memories；
I, after the local HTTPServer of iOS clients does different processing according to the start parameters got, number
According to player is passed back, played out by player.
In the present embodiment, the local HTTPServer of iOS clients needs the place done according to start parameters in step I
Reason method includes the following steps：
If A, start parameters will return to all decryption numbers equal to the local HTTPServer of 0, iOS clients
According to clear data to player；
If B, start parameters are more than 0 and less than the original length of encryption part, the locals of iOS clients
HTTPServer is by the ciphertext data after returning to start length values and clear data to player；
If C, start parameters are more than the original length of encryption part, according to start parameters, the original length of encryption data
Degree and encrypted length calculate file jump location and return data to broadcasting after jumping to the corresponding position of DRM files
Device.
In the present invention, video file is encrypted in server end first, and then iOS clients again regard encrypted DRM
Frequently locally downloading, the decryption scheme that is then consulted by local and server decrypts video, finally plays out, if its
Other people, which get, has downloaded the local DRM video files of completion and can not directly play, and thus protects the copyright of video.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of local DRM video flowings decryption method based on HTTPServer inside iOS clients, it is characterised in that：Including
Following steps：
A, iOS client wants will play some DRM file, load the corresponding addresses url of the video with player first；
B, player is sent on network request to the local HTTPServer at the ends iOS；
C, local HTTPServer loads the DRM files；
D, local HTTPServer is got by encrypted DRM files stream；
E, local HTTPServer decryption of drm file streams；
F, the video that local HTTPServer is sent after decryption flows to player；
G, the video after local player plays decryption.
2. a kind of local DRM video flowings decryption side based on HTTPServer inside iOS clients according to claim 1
Method, it is characterised in that：Decryption method includes the following steps in the step E：
A, iOS clients download encrypted DRM video files from server end first；
B, the HTTPServer of iOS client terminal start-ups local, and monitor some port numbers；Wherein, port numbers are made by oneself by developer；
C, player loads the video url to be played, and asks local HTTPServer servers；
D, the local HTTPServer of iOS clients is received after the http request that player is sent out, and returns to iOS clients
Request results；
E, the local HTTPServer of iOS clients obtains start parameters according to the Range fields of http request；
F, the parts header of local DRM video files are parsed；
G, decryption of drm file encryption part, since encrypted fields are all by des encryption, decruption key is all previously stored in mobile phone
In memory；
H, the local HTTPServer of iOS clients uses decruption key according to the count got above and the value of length
Cycle decrypts encrypted field, and is stored in iOS mobile phone EMS memories；
I, after the local HTTPServer of iOS clients does different processing according to the start parameters got, data are passed
Player is returned, is played out by player.
3. a kind of local DRM video flowings decryption side based on HTTPServer inside iOS clients according to claim 2
Method, it is characterised in that：The local HTTPServer of iOS clients needs the processing done according to start parameters in the step I
Method includes the following steps：
If A, start parameters be equal to 0, iOS clients local HTTPServer will return all ciphertext datas and
Clear data is to player；
If B, start parameters are more than 0 and less than the original length of encryption part, the locals of iOS clients
HTTPServer is by the ciphertext data after returning to start length values and clear data to player；
If C, start parameters be more than encryption part original length, according to start parameters, encryption data original length and
Encrypted length calculates file jump location and returns data to player after jumping to the corresponding position of DRM files.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045988.7A CN108337561B (en) | 2017-01-20 | 2017-01-20 | Local DRM video stream decryption method based on internal HTTPServer of iOS client |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045988.7A CN108337561B (en) | 2017-01-20 | 2017-01-20 | Local DRM video stream decryption method based on internal HTTPServer of iOS client |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108337561A true CN108337561A (en) | 2018-07-27 |
| CN108337561B CN108337561B (en) | 2021-07-30 |
Family
ID=62922343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710045988.7A Active CN108337561B (en) | 2017-01-20 | 2017-01-20 | Local DRM video stream decryption method based on internal HTTPServer of iOS client |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130166906A1 (en) * | 2011-12-22 | 2013-06-27 | Viswanathan Swaminathan | Methods and Apparatus for Integrating Digital Rights Management (DRM) Systems with Native HTTP Live Streaming |
| CN103620609A (en) * | 2011-05-02 | 2014-03-05 | 英赛瑟库尔公司 | Method for playing digital contents protected with a DRM (digital right management) scheme and corresponding system |
| CN104104676A (en) * | 2014-07-09 | 2014-10-15 | 福建星网视易信息***有限公司 | Audio/video playing method and device |
| CN106101866A (en) * | 2016-07-14 | 2016-11-09 | 观止云（北京）信息技术有限公司 | A kind of method of HLS Streaming Media DRM |
| CN106331751A (en) * | 2016-08-31 | 2017-01-11 | 广州易方信息科技有限公司 | Online encrypted slice video playing method based on iOS operating system |
-
2017
- 2017-01-20 CN CN201710045988.7A patent/CN108337561B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620609A (en) * | 2011-05-02 | 2014-03-05 | 英赛瑟库尔公司 | Method for playing digital contents protected with a DRM (digital right management) scheme and corresponding system |
| US20130166906A1 (en) * | 2011-12-22 | 2013-06-27 | Viswanathan Swaminathan | Methods and Apparatus for Integrating Digital Rights Management (DRM) Systems with Native HTTP Live Streaming |
| CN104104676A (en) * | 2014-07-09 | 2014-10-15 | 福建星网视易信息***有限公司 | Audio/video playing method and device |
| CN106101866A (en) * | 2016-07-14 | 2016-11-09 | 观止云（北京）信息技术有限公司 | A kind of method of HLS Streaming Media DRM |
| CN106331751A (en) * | 2016-08-31 | 2017-01-11 | 广州易方信息科技有限公司 | Online encrypted slice video playing method based on iOS operating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108337561B (en) | 2021-07-30 |
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