CN111083530B - DRM integration method, system, device and storage medium for Internet broadcast control platform - Google Patents
DRM integration method, system, device and storage medium for Internet broadcast control platform Download PDFInfo
- Publication number
- CN111083530B CN111083530B CN201911402099.7A CN201911402099A CN111083530B CN 111083530 B CN111083530 B CN 111083530B CN 201911402099 A CN201911402099 A CN 201911402099A CN 111083530 B CN111083530 B CN 111083530B
- Authority
- CN
- China
- Prior art keywords
- video
- user
- aaa server
- drm
- client
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000010354 integration Effects 0.000 title claims abstract description 28
- 238000012795 verification Methods 0.000 claims abstract description 26
- 238000013475 authorization Methods 0.000 claims description 27
- 238000004590 computer program Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
Abstract
The invention provides a DRM integration method, a system, a device and a storage medium of an Internet broadcast control platform, comprising the following steps: the user sends a user instruction to the client; the client sends a user request to an AAA server according to the user instruction; the AAA server verifies the user playing authority according to the user request, generates a video playing string after the authority verification is successful, and generates a video key through a DRM module arranged in the AAA server; the AAA server sends the video key and the video play string to the client; and the client breaks the video key according to the video key, decrypts the video playing string through the video key, and plays the encrypted video after decryption. The invention can simultaneously acquire the video playing string and the video key when the client sends a request by adding the interface in the AAA server. This facilitates standardization of the DRM system and also reduces the number of requests from the player.
Description
Technical Field
The invention belongs to the technical field of integrated broadcast control platforms, and particularly relates to a DRM integration method, a DRM integration system, a DRM integration device and a DRM integration storage medium for an Internet broadcast control platform.
Background
The DRM technology is a technology for strengthening the content copyright protection of audio and video digital products, and the basic working principle is to encrypt and encode files such as audio and video and establish a certificate authorization service center; when the user uses the encrypted files, the application software can automatically link to a corresponding site (certificate authority service center) according to the related attributes contained in the header file to acquire a corresponding certificate; the audio and video files can be used only through the verification and authorization of the authorization center, so that the copyright and the use authority of the digital multimedia products are strictly and effectively protected.
In the prior art, video information and user information to be played are sent to an AAA server through a client, authentication is carried out through the AAA server, a video playing string is output and sent to the client after authentication, the client sends a request to a DRM system again for the video information to be played, and the DRM system enters a video key gateway to obtain a video key of the video. Multiple requests are required, which affects the playing efficiency and is not beneficial to the standardization of the DRM system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a DRM integration method, a DRM integration system, a DRM integration device and a DRM integration storage medium for an Internet broadcast control platform, and solves the problem of low efficiency caused by the fact that a client can acquire a video play string and a video key only through multiple requests.
The technical scheme of the invention is realized as follows: in a first aspect, a DRM integration method for an internet broadcast control platform includes the following steps:
a user sends a user instruction to a client;
the client sends a user request to the AAA server according to the user instruction;
the AAA server verifies the user playing authority according to the user request, and after the authority verification is successful, the AAA server generates a video playing string and generates a video key through a DRM module arranged in the AAA server; the AAA server sends the video key and the video play string to the client;
and the client breaks the video key according to the video key, decrypts the video playing string through the video key, and plays the encrypted video after decryption.
Optionally, the AAA server sends an instruction to the verification module according to the user request, the verification module verifies the user playing authority, and the verification module of the AAA server generates a video playing string after the authority verification is successful;
the AAA server sends an instruction to the DRM module according to the user request, the DRM module sends a decryption instruction to the video key gateway, and the video key gateway performs content authorization on the encrypted video to form a video key after authorization;
the video playing string and the video key are sent to the client through a sending module of the AAA server;
in a second aspect, a DRM integration system for an internet playing and controlling platform comprises a client and an AAA server, wherein
The client is used for logging in by a user, receiving a user instruction, sending a user request to the AAA server, breaking and decoding a video key according to the video key, decrypting a video playing string through the video key, and playing an encrypted video after decryption;
and the AAA server is used for receiving the user instruction, verifying the user playing authority according to the user request, forming a video playing string after the authority verification is successful, generating a video key according to the user request and sending the formed video playing string and the video key to the client.
Optionally, the AAA server comprises a checking module, a DRM module and a sending module, wherein
The verification module is used for verifying the user playing authority according to the user request to form a video playing string;
the DRM module sends a decryption instruction to the video key gateway according to a user request, and the video key gateway performs content authorization on the encrypted video to form a video key after the content authorization;
and the sending module is used for sending the video play string and the video key to the client.
Optionally, an interface for embedding the DRM module is added to the AAA server.
Optionally, when the user sends the user instruction to the client, the user may select whether to log in the client.
In a third aspect, an apparatus for extending an IP address of a cloud mobile phone includes:
a memory for storing a program;
a processor for executing a program, the program causing the processor to execute the DRM integration method of the internet podcasting platform according to any one of claims 1 to 2.
In a fourth aspect, a computer-readable storage medium, comprising a computer program which, when run on a computer, causes the DRM integration method of the internet podcasting platform according to any one of claims 1 to 2 to be performed.
Compared with the prior art, the invention has the following advantages: compared with the traditional mode that the video playing string and the video key can be obtained and decrypted only by multiple requests, the method has the advantages that the DRM module interface is added in the AAA server, when the client sends the user request to the AAA server, the AAA server can simultaneously obtain the video playing string and the video key, then obtain the corresponding video key according to the video key, and decrypt the video information which is requested to be played by the user and is played by the video playing string through the video key. This is more advantageous for the standardization of the DRM system and also reduces the number of requests from the player.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a DRM integration method of an internet broadcast control platform according to the present invention;
fig. 2 is a functional block diagram of a DRM integrated system of an internet broadcast control platform according to the present invention;
in the figure:
1. a client; 2. an AAA server; 21. a checking module; 22. a DRM module; 23. and a sending module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, fig. 1 is a flowchart illustrating a DRM integration method for an internet broadcast control platform according to an embodiment of the present invention.
The embodiment of the invention discloses a DRM integration method for an Internet broadcast control platform. The method comprises
Step 1: a user sends a user instruction to a client 1; specifically, when the user sends a user instruction to the client 1, the user may select whether to log in the client 1; when a user selects a certain video to play, a user instruction is sent to the client 1 by clicking the screen of the client 1.
Step 2: the client 1 sends a user request to the AAA server 2 according to a user instruction; after the client 1 receives the user instruction, the client 1 sends a specific request to the AAA server 2 through the network according to the user instruction.
And step 3: the AAA server 2 verifies the user playing authority according to the user request, and after the authority verification is successful, the AAA server 2 generates a video playing string and generates a video key through a DRM module 22 arranged in the AAA server 2; the AAA server 2 sends the video key and the video play string to the client 1; after the AAA server 2 receives the request, the AAA server 2 calls the video information and the user information, checks in the AAA server 2 system, and outputs a video playing string after the checking is successful; meanwhile, the user request sent by the client 1 includes obtaining a video key, and at this time, the AAA server 2 calls the DRM module 22 to generate the video key; after generating the video key and the video play string, the AAA server 2 sends the information to the client 1.
And 4, step 4: the client 1 breaks the video key according to the video key, decrypts the video playing string through the video key, and plays the encrypted video after decryption.
As shown in fig. 1 and 2, in order to complete all the user requests at one time, step 3 specifically includes
Step 31: the AAA server 2 sends an instruction to the verification module 21 according to the user request, the verification module 21 verifies the user playing authority, and the verification module 21 of the AAA server 2 generates a video playing string after the authority verification is successful;
AAA Authentication, wherein AAA is Authentication (Authentication), Authorization (Authorization) and Accounting (Accounting) respectively; authentication (Authentication): verifying the identity of the user and available network services; the whole authentication is usually performed by inputting a user name and a password by the user to perform permission verification. The principle of authentication is that each user has a unique right acquisition criterion. The AAA server 2 checks the user's criteria against the criteria of each user in the database one to one. If so, the user is authenticated. If not, refusing to provide the network connection; authorization (Authorization): opening network service to the user according to the authentication result; the user needs to obtain the right to operate the corresponding task through authorization. For example, after logging in the system, the user may execute some commands to perform operations, and the authorization process may detect whether the user has the right to execute the commands. Briefly, the authorization process is a combination of a series of forced policies, including: it is determined what kind or quality of activity, resources, or services the user is allowed to have. The authorization process occurs in an authentication context. Once the user passes the authentication, the user is granted corresponding rights; accounting (Accounting): and recording the usage of various network services by the user and providing the usage to the charging system. Billing this process calculates the number of resources consumed by the user during the connection. These resources include connection time or user traffic during the connection process, etc. The accounting process may be performed based on statistical logs of connection processes and user information, as well as authorization control, billing, trend analysis, resource utilization, and capacity planning activities. The functions of authentication, authorization and accounting are provided by the AAA server 2. AAA server 2 is a program that can provide these three services.
Step 32: the AAA server 2 sends an instruction to the DRM module 22 according to the user request, the DRM module 22 sends a decryption instruction to the video key gateway, and the video key gateway performs content authorization on the encrypted video to form a video key after authorization;
specifically, the DRM technology is implemented as follows:
the first step is as follows: encrypting a file and packaging the content, and encrypting a media file to be encrypted by using encryption software;
the second step is that: the content is released, the encrypted and packaged file is placed on the network for the user to download and order, and can also be recorded into optical disks for sale and other ways to release the content, but the use must ensure that the authorization can be obtained through the verification of an authorization center.
The third step: acquiring a certificate, wherein when a user uses an encrypted file, a client 1Windows media copyright manager firstly searches whether a valid certificate exists on a local computer, and if the valid certificate fails, the client is linked to a certificate issuing center; after a certificate issuing page of a certificate issuing center receives a head of encrypted file content and related information of a user computer sent by a client 1 through a WMRMChallenge object, a permitted video Key seed (Seek) and a received video Key identifier (KeyID) generate a video Key (Key) which is the same as that generated in content packaging through a WMRMkeys object for decryption, and then a WMRMHeader object verifies the head of the video Key according to a public signature video Key (Pubkey); the certificate authority defines the permission of the license through the WMRMRight object, such as playing times, starting and stopping time and the like; then, a certificate is created by using the WMRMLicGen object, and the certificate contains the contents such as a video key, authority and the like of the decrypted content; finally, the certificate is transmitted to the Windows media copyright manager of the client computer through the WMRMResponse object.
The fourth step: playing the file, after acquiring the certificate, the client 1Windows media copyright manager verifies the signature, and puts the license in a license library; and then the client 1Windows media copyright manager decrypts the content and plays the streaming media file according to the authority.
Step 33: the video play string and the video key are sent to the client 1 through the sending module 21 of the AAA server 2.
Specifically, a user sends a user instruction to the client 1, after receiving the user instruction requirement, the client 1 sends a user request to the AAA server 2 through the internet, after receiving the user request, the AAA server 2 verifies the user information and the encrypted video information through the verification module 21, after successful verification, the AAA server 2 outputs a video play string, meanwhile, the AAA server 2 enters the video key gateway through the DRM module 22, the video key gateway performs content authorization on the encrypted video, a video key is formed after authorization, the AAA server 2 transmits the obtained video play string and the video key to the client 1, the client 1 breaks the video key according to the video key, decrypts the video play string through the video key, and plays the encrypted video after decryption.
Example two
A DRM integration method of an Internet broadcast control platform takes a DRM integration system of the Internet broadcast control platform as an execution object. As shown in fig. 2, a DRM integration system of an internet broadcast control platform includes a client 1 and an AAA server 2, where a user exchanges data with the client 1, and the client 1 exchanges data with the AAA server 2. Specifically, the client 1 is used for logging in by a user, receiving a user instruction, sending a user request to the AAA server 2, breaking a video key according to the video key, decrypting a video play string through the video key, and playing an encrypted video after decryption; the client 1 can be a video platform for each playing, and is used for meeting the requirements of users for video entertainment. The AAA server 2 is used for receiving a user instruction, verifying the user playing authority according to a user request, forming a video playing string after the authority verification is successful, generating a video key according to the user request and sending the formed video playing string and the video key to the client 1.
Specifically, the AAA server 2 includes a check module 21, a DRM module 22, and a sending module 21, wherein
The checking module 21 is used for checking the user playing authority according to the user request to form a video playing string;
the DRM module 22 sends a decryption instruction to the video key gateway according to the user request, and the video key gateway performs content authorization on the encrypted video to form a video key after the content authorization; specifically, the AAA server 2 is added with an interface for embedding the DRM module 22, so as to provide a solution that the client 1 can implement multiple functions by sending a request once.
And a sending module 21, configured to send the video play string and the video key to the client 1.
In summary, compared with the traditional mode that the video playing string and the video key are obtained and decrypted only by requiring multiple requests, the invention adds the DRM module 22 interface in the AAA server 2, when the client 1 sends the user request to the AAA server 2, the AAA server 2 can simultaneously obtain the video playing string and the video key, then obtains the corresponding video key according to the video key, and decrypts the video information requested to be played by the user through the video key. This is more advantageous for the standardization of the DRM system and also reduces the number of requests from the player.
According to an embodiment of the present invention, there is also provided a storage medium having a program product stored thereon, which is capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above-mentioned "exemplary methods" section of the present description, when the program product is run on the terminal device. Which may employ a portable compact disc read only memory (CD-ROM) and include program code and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPRO or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
Similarly, according to an embodiment of the present invention, there is also provided a processor on which a computer program is stored, which is executable by the processor, and in some possible implementations, various aspects of the present invention may also be implemented in the form of a program product including program code for causing a terminal device to perform the steps according to various exemplary implementations of the present invention described in the above section "exemplary method" of the present specification, when the program product is run on the terminal device.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (6)
1. A DRM integration method for an Internet broadcast control platform is characterized by comprising the following steps:
a user sends a user instruction to a client;
the client sends a user request to an AAA server according to the user instruction;
the AAA server executes the following operations according to a user request:
the AAA server sends an instruction to a verification module in the AAA server, the verification module verifies the user playing authority and the encrypted video information, and the verification module of the AAA server generates a video playing string after the authority verification is successful;
the AAA server sends an instruction to a DRM module in the AAA server, the DRM module sends a decryption instruction to a video key gateway, and the video key gateway performs content authorization on the encrypted video to form a video key after authorization;
the video playing string and the video key are sent to the client through a sending module of the AAA server;
and the client breaks a video key according to the video key, decrypts the video playing string through the video key, and plays the encrypted video after decryption.
2. The DRM integration method of an internet playback platform as claimed in claim 1, wherein when the user sends the user command to the client, the user can select whether to log in the client.
3. A DRM integration system of an internet control platform for performing the DRM integration method of the internet control platform of claim 1, comprising a client and an AAA server, wherein the client and the AAA server are included in the DRM integration system
The client is used for logging in by a user, receiving the user instruction, sending the user request to the AAA server, breaking the video key according to the video key, decrypting the video playing string through the video key, and playing the encrypted video after decryption;
the AAA server is used for receiving the user instruction, verifying the user playing authority according to the user request, forming a video playing string after the authority verification is successful, generating a video key according to the user request and sending the formed video playing string and the video key to the client;
the AAA server comprises a verification module, a DRM module and a sending module, wherein the verification module is used for verifying the user playing authority according to a user request to form a video playing string; the DRM module sends a decryption instruction to the video key gateway according to a user request, and the video key gateway performs content authorization on the encrypted video to form a video key after the content authorization; and the sending module is used for sending the video playing string and the video key to the client.
4. The DRM integrated system for an Internet podcasting platform as claimed in claim 3, wherein the AAA server is added with an interface for embedding the DRM module.
5. A DRM integrated device for an internet broadcast control platform, comprising:
a memory for storing a program;
a processor for executing the program, the program causing the processor to execute the DRM integration method of the internet podcasting platform as claimed in claim 1.
6. A computer-readable storage medium, characterized by comprising a computer program which, when run on a computer, causes the DRM integration method of the internet podcasting platform of claim 1 to be performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402099.7A CN111083530B (en) | 2019-12-30 | 2019-12-30 | DRM integration method, system, device and storage medium for Internet broadcast control platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402099.7A CN111083530B (en) | 2019-12-30 | 2019-12-30 | DRM integration method, system, device and storage medium for Internet broadcast control platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111083530A CN111083530A (en) | 2020-04-28 |
| CN111083530B true CN111083530B (en) | 2021-08-06 |
Family
ID=70320061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911402099.7A Active CN111083530B (en) | 2019-12-30 | 2019-12-30 | DRM integration method, system, device and storage medium for Internet broadcast control platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111083530B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363011A (en) * | 2021-12-13 | 2022-04-15 | 浙江加我网络科技有限公司 | Ultra-high-definition video leakage-prevention sharing method |
| CN115334356B (en) * | 2022-08-12 | 2024-02-23 | 中国电信股份有限公司 | Video playing method and system, video security platform and communication equipment |
| CN115361593B (en) * | 2022-08-19 | 2023-04-07 | 湖北巨字传媒有限公司 | Video equipment data secure transmission method and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174295B (en) * | 2008-01-16 | 2010-09-01 | 北京飞天诚信科技有限公司 | Off-line DRM authentication method and system |
| CN101902611B (en) * | 2009-06-01 | 2012-03-28 | 航天信息股份有限公司 | Method for realizing IPTV digital rights management |
| CN103024474B (en) * | 2012-11-30 | 2018-05-04 | 北京视博数字电视科技有限公司 | Broadcast television content receives safely system, method and the gateway device with distribution |
| US10432685B2 (en) * | 2016-05-31 | 2019-10-01 | Brightcove, Inc. | Limiting key request rates for streaming media |
-
2019
- 2019-12-30 CN CN201911402099.7A patent/CN111083530B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| DRM Architecture for Mobile VOD Services;Yong-Hak Ahn，等;《Multimedia Content Representation,Classification and Security》;20061231;全文 * |
| 基于DRM技术的IPTV版权保护模型研究;马晋等;《微计算机信息》;20070725(第24期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111083530A (en) | 2020-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9853957B2 (en) | DRM protected video streaming on game console with secret-less application | |
| US7975312B2 (en) | Token passing technique for media playback devices | |
| CN104581214B (en) | Multimedia content guard method based on ARM TrustZone systems and device | |
| JP4740157B2 (en) | Protect digital data content | |
| CN111083530B (en) | DRM integration method, system, device and storage medium for Internet broadcast control platform | |
| JP5626816B2 (en) | Method and apparatus for partial encryption of digital content | |
| JP2008508595A (en) | System and method for enabling a device in response to rights protection | |
| KR20130056342A (en) | Secure and efficient content screening in a networked environment | |
| CN107145769B (en) | Digital Rights Management (DRM) method, equipment and system | |
| MXPA06010778A (en) | Digital rights management structure, portable storage device, and contents management method using the portable storage device. | |
| CN103957436A (en) | Video anti-stealing-link method based on OTT service | |
| CN101243434A (en) | Remotely accessing protected files via streaming | |
| US20110197264A1 (en) | System and method for remote media access | |
| US9652624B2 (en) | Method, host, storage, and machine-readable storage medium for protecting content | |
| CN110324358B (en) | Video data management and control authentication method, module, equipment and platform | |
| US11063766B2 (en) | Method and system for performing a transaction and for performing a verification of legitimate access to, or use of digital data | |
| CN108494724B (en) | Cloud storage encryption system based on multi-authority attribute encryption algorithm | |
| US8171565B2 (en) | Systems and methods for locally generating license and activating DRM agent | |
| CN110300289B (en) | Video safety management system and method | |
| US20090282245A1 (en) | Security method and system for media playback devices | |
| KR101249343B1 (en) | Method for protection of a digital rights file | |
| KR100779985B1 (en) | Protecting method and system of contents | |
| JP5776432B2 (en) | Information processing apparatus, information processing method, and program | |
| JP5765130B2 (en) | Information processing apparatus, information processing method, and program | |
| JP5999224B2 (en) | Information processing apparatus, information processing method, and program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |