CN104809365A - Digital right management system, management method and information transfer system and method thereof - Google Patents
Digital right management system, management method and information transfer system and method thereof Download PDFInfo
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- CN104809365A CN104809365A CN201410042077.5A CN201410042077A CN104809365A CN 104809365 A CN104809365 A CN 104809365A CN 201410042077 A CN201410042077 A CN 201410042077A CN 104809365 A CN104809365 A CN 104809365A
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Abstract
The invention discloses a digital right management system which comprises a digital content offering unit, an authority management unit and a user device. The authority management unit is used for executing authority validation. The user device is connected with the digital content offering unit and the authority management unit and comprises user information. The user device generates symmetric key, the authority management unit acquires public key of the asymmetric public key and private key pair, the key is encrypted via public key and transferred to the authority management unit; the user device encrypts the user information via the key, the digital content offering unit offers the encrypted user information to the authority management unit. The authority management unit decrypts the private key in the public key and private key pair via asymmetric public key and uses the key for decrypting to obtain the user information and executes the authority validation according to the user information.
Description
Technical field
User profile, about a kind of digital rights management system and method, espespecially a kind ofly can effectively be maintained secrecy to carry out the digital rights management system of Authority Verification, management method and message transfer system thereof and method by the present invention.
Background technology
Along with the prosperity of communication network, the digital content that it can create by network by digital content provider is uploaded to network service platform, for long-range grantee's down load application.For making digital content protected; digital content is avoided to be downloaded arbitrarily by person without permission, use, copy and propagation; and safeguard the rights and interests of digital content provider; digital rights management system (Digital Right ManagementSystem; DRM system) so developed, be used for managing digital content mandate and limit person's arbitrary access without permission, use, copy and disseminate digital content.
In existing digital rights management system, when user's (or claim client) by its user's set for obtain a network service platform and provide specific digital content time, this user's set needs first its user profile to be passed to network service platform, to carry out the authority of authentication of users device to this specific digital content by network service platform according to this user profile.Through confirming that this user's set is to after the authority of this specific digital content, network service platform just can provide this specific digital content to give this user's set, so that this user uses this digital content in its extent of competence.
For guaranteeing user profile maintaining secrecy and security in transmittance process, prior art adopts the encryption and decryption method of AES or RSA that transmitting subscriber identify between sender and take over party is carried out encryption and decryption.AES encryption and decryption method is symmetrical expression encryption and decryption method, its feature is that sender and take over party agreement must go out a common key to be used for encryption and decryption simultaneously before data is transmitted, although the encryption and decryption efficiency of AES encryption and decryption method is high, so its shortcoming is that two Fang Douxu have same key, if either party leaks this key, then outside all can utilize this key the information of this encryption to be decrypted.The RSA encryption and decryption genealogy of law is asymmetric encryption and decryption method, and its feature first can produce two group keys for take over party before sender will transmit data, i.e. PKI and private key pair.Then, PKI is sent to sender and retains private key by take over party.When sender's tendency to develop send data to take over party, sender first utilizes PKI to carry out data encryption, and take over party receives after this enciphered data can private key deciphering, even if PKI is leaked and also do not worry that data are decrypted thus.Although the security of RSA encryption and decryption method is higher, its shortcoming is that encryption and decryption efficiency is unevident.
In view of this, be in fact necessary to develop a kind of digital rights management system and method, to solve the prior art problems such as unevident and security is not enough to user profile encryption and decryption efficiency.
Summary of the invention
The object of the invention is to put forward a kind of digital rights management system, management method and message transfer system thereof and method, user profile can effectively be maintained secrecy to carry out Authority Verification by it, and can solve the prior art problems such as unevident and security is not enough to user profile encryption and decryption efficiency.
According to conception of the present invention, the invention provides a kind of digital rights management system, comprise digital content providing unit, rights management unit and user's set.Digital content providing unit comprises at least one digital content.Rights management unit structure is in execution one Authority Verification.User's set is connected with digital content providing unit and rights management unit, and comprises a user profile.Wherein, user's set produces a symmetric key, and a PKI of an asymmetric PKI and private key pair is obtained by rights management unit, and key is sent to rights management unit with public key encryption, user's set by user profile with secret key encryption, and be sent to rights management unit via digital content providing unit.Rights management unit by secret key decryption, and obtains user profile with secret key decryption with a private key of asymmetric PKI and private key pair, and carries out Authority Verification according to user profile.
According to conception of the present invention, the present invention separately provides a kind of digital rights management method, comprises: (a) provides a digital content providing unit and a rights management unit; B () provides a user's set, make this user's set produce a symmetric key, and user's set obtains a PKI of an asymmetric PKI and private key pair by rights management unit, and key is sent to rights management unit with public key encryption; (c) rights management unit with a private key of this asymmetric PKI and private key pair by this secret key decryption; D one user profile with this secret key encryption, and is sent to rights management unit via digital content providing unit by () user's set; And (e) rights management unit obtains user profile with secret key decryption, and carry out an Authority Verification according to user profile.
According to conception of the present invention, the present invention separately provides a kind of information transferring method, comprise: (a) makes a sender produce a symmetric key, and this sender obtains a PKI of an asymmetric PKI and private key pair by a take over party, and this key is sent to this take over party with this public key encryption; (b) this take over party with a private key of this asymmetric PKI and private key pair by this secret key decryption; C one information with this secret key encryption, and is sent to this take over party by () this sender; And (d) this take over party obtains this information with this secret key decryption.
According to conception of the present invention, the present invention separately provides a kind of message transfer system, comprises a sender and a take over party.Sender comprises an information.Take over party and sender link.Wherein, this sender produces a symmetric key, and this sender obtains a PKI of an asymmetric PKI and private key pair by this take over party, and this key is sent to this take over party with this public key encryption, this sender by this information with this secret key encryption, and be sent to this take over party.This take over party by this secret key decryption, and obtains this information with this secret key decryption with a private key of this asymmetric PKI and private key pair.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of the digital rights management system of present pre-ferred embodiments.
Fig. 2 A and Fig. 2 B is shown between the user's set of Fig. 1 and rights management unit and carries out the data encrypting and deciphering of a user profile and the configuration diagram of transmission.
Fig. 3 shows the schematic diagram carrying out Authority Verification and digital content between the rights management unit of Fig. 1, digital content providing unit and user's set and take.
Fig. 4 A and Fig. 4 B carries out the process flow diagram that Authority Verification and digital content take for the digital rights management system shown in Fig. 3.
The exemplary authority correspondence table that Fig. 5 builds for the rights management unit shown in Fig. 3.
Wherein, description of reference numerals is as follows:
1: digital rights management system
11: rights management unit
12: digital content providing unit
13: user's set
14: key
15: PKI and private key pair
16: authority correspondence table
131: processor
132: storage element
133: user profile
134: device management module
135: digital content interface module
151: PKI
152: private key
2: communication network
3: network service platform
4: user
S10 ~ S17, S20 ~ S26: process step
Embodiment
Some exemplary embodiments embodying feature & benefits of the present invention describe in detail in the explanation of back segment.Be understood that the present invention can have various changes in different aspects, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing are in itself when the use explained, but not for limiting the present invention.
Fig. 1 is the configuration diagram of the digital rights management system of present pre-ferred embodiments.As shown in Figure 1, digital rights management system 1 of the present invention comprises rights management unit 11, digital content providing unit 12 and at least one user's set 13, wherein rights management unit 11, can be interconnected and communication by communication network 2 between digital content providing unit 12 and user's set 13, and rights management unit 11 and digital content providing unit 12 be common assembly for a network service platform 3 with the providing of combine digital content, manage, authorize and/or the service such as online transaction.Rights management unit 11 system structure is in the authority of checking with user's set 13 pairs of digital contents of leading subscriber 4, and wherein rights management unit 11 is that the user profile that provides according to user's set 13 is to carry out Authority Verification.Digital content providing unit 12 system structure in storing, providing and managing digital content, and can be connected to rights management unit 11 by communication network 2, to provide digital content to give user's set 13 according to an Authority Verification result of rights management unit 11.User's set 13 can be connected to rights management unit 11 and digital content providing unit 12 by communication network 2, and provide a user profile to carry out Authority Verification for this rights management unit 11, and after digital content providing unit 12 receives Authority Verification result, take this digital content by this digital content providing unit 12.In the present embodiment, digital content can comprise the file content of any type known, such as but not limited to the film of various file layout, music, game, e-book, and picture or its network link address etc.The user's set 13 of user 4 can be but is not limited to multimedia platform device, top box of digital machine, Web TV, personal computer, server, flat computer or device for mobile communication.
Fig. 2 A and Fig. 2 B is shown between the user's set of Fig. 1 and rights management unit and carries out the data encrypting and deciphering of a user profile and the configuration diagram of transmission.As shown in Fig. 2 A figure, user's set 13 and rights management unit 11 can framework be a message transfer system, and wherein user's set 13 be sender, rights management unit 11 is take over party, and user profile is information to be transmitted.According to conception of the present invention, user's set 13 is before its user profile of transmission, first utilize high-order encryption standard (AdvancedEncryption Standard, AES) symmetry encryption algorithm produces a key 14, and obtain the PKI and private key that produce with RSA unsymmetrical tridiagonal matrix algorithm to the PKI 151 in 15 to rights management unit 11, and key 14 is utilized after PKI 151 encrypts, be back to rights management unit 11 and with private key 152 key 14 deciphered and preserve.In addition, as shown in Fig. 2 B, user profile 133 utilizes key 14 to encrypt by user's set 13, and is sent to digital content providing unit 12, transfers to rights management unit 11 through it.Rights management unit 11 decrypts user profile 133 with key 14, and carries out Authority Verification according to user profile 13, and Authority Verification result is back to digital content providing unit 12.If Authority Verification result is for having authority, then digital content providing unit 12 can start to download this specific digital content or relevent information gives user's set 13.By the data encryption/decryption method of the user profile that digital rights management system 1 of the present invention carries out, user profile 133 can utilize AES and RSA encryption and decryption method to carry out data confidentiality and transmission simultaneously, to reach effect of secret and safe and lifting encryption and decryption efficiency.
Fig. 3 system shows the schematic diagram carrying out Authority Verification and digital content between the rights management unit of Fig. 1, digital content providing unit and user's set and take, and Fig. 4 A and Fig. 4 B carries out the process flow diagram that Authority Verification and digital content take for the digital rights management system shown in Fig. 3.As shown in Fig. 3 and Fig. 4 A and Fig. 4 B, user's set 13 comprises processor 131, storage element 132, device management module 134 and digital content interface module 135, and user's set 13 comprises a user profile 133 is stored in storage element 132.Device management module 134 can be a device management application program (such as App), it can be provided by rights management unit 11 and download and install in user's set 13, using as the interface between user's set 13 and rights management unit 11, and framework is in the communication performed between user's set 13 and rights management unit 11 and data processing.Digital content interface module 135 can be an application program (app), it can be provided by digital content providing unit 12 and download and install in user's set 13, using as the interface between user's set 13 and digital content providing unit 12, and framework is in the communication performed between user's set 13 and digital content providing unit 12 and data processing.Device management module 134 and digital content interface module 135 can perform its application program by processor 131 respectively and realize its function.
When user 4 for take digital content providing unit 12 with user's set 13 and provide specific digital content time (such as watch film, listen to the music, play games, browsing pictures or reading electronic book), be realize the Authority Verification program with performing this digital rights management system 1 between rights management unit 11, digital content providing unit 12 and user's set 13, and the user's set 13 recognizing user 4 in core to the authority of this specific digital content after, allow that digital content providing unit 12 provides this specific digital content to give user's set 13.The process step that this Authority Verification and digital content take program is summarized as follows.
First, as shown in the step S10 in Fig. 4 A, in response to the operation of user 4, its device management module 134 of user's set 13 activation and digital content interface module 135, and digital content interface module 135 sends a request to device management module 134, user profile 133 is provided to verify with claimed apparatus administration module 134.Then, as shown in step S11, the device management module 134 of user's set 13 is after receiving this request, utilize high-order encryption standard (Advanced Encryption Standard, AES) symmetry encryption algorithm produces key 14, and utilizes this key 14 encrypting user information 133 to produce the user profile of encryption.Afterwards, as shown in step S12, the device management module 134 of user's set 13 sends a request to rights management unit 11, with require authority administrative unit 11 provide a PKI and private key to 15 PKI 151.In this step, the user profile 133 of this key 14 and encryption is also stored in storage element 132 by user's set 13.
Then, as shown in step S13, in response to this request of the device management module 134 of user's set 13, rights management unit 11 utilizes RSA unsymmetrical tridiagonal matrix algorithm to produce a PKI and private key to 15.Afterwards, as shown in step S14, rights management unit 11 by PKI and private key to 15 PKI 151 be sent to the device management module 134 of user's set 13.Then, as shown in step S15, PKI 151 pairs of keys 14 that the device management module 134 of user's set 13 utilizes authority administrative unit 11 to provide are encrypted, to form the key 14 of encryption.Then, as shown in step S16, the device management module 134 of user's set 13 transmits key 14 to the rights management unit 11 of this encryption.Afterwards, as shown in step S17, by rights management unit 11 with PKI and private key to 15 the key 14 of private key 152 to this encryption be decrypted, to solve key 14, and this key 14 is stored in its database 11a.
Then, as shown in the step S20 in Fig. 4 B, the user profile (namely in step S11, utilizing key 14 pairs of user profile 133 to encrypt institute producer) of this encryption provides and gives digital content interface module 135 by the device management module 134 of user's set 13.In this embodiment, user profile 133 at least comprises user account and password.Afterwards, as shown in step S21, the user profile 133 of this encryption is sent to digital content providing unit 12 by the digital content interface module 135 of user's set 13.Then, as shown in step S22, the user profile 133 of this encryption is directly transferred to rights management unit 11 by digital content providing unit 12.Afterwards, as shown in step S23, rights management unit 11, after the user profile 133 receiving this encryption, utilizes the user profile 133 of key 14 to this encryption obtained in step S17 to be decrypted, to obtain the user profile after deciphering 133.
Then, as shown in step S24, rights management unit 11, after deciphering obtains the user profile 133 of this user's set 13, carries out Authority Verification by according to this user profile 133 with the corresponding table 16 of an authority built in its database 11a.In some embodiments, as shown in Figure 5, rights management unit 11 build table 16 corresponding to the authority stored content comprise the file data of multiple user, wherein the project of the file data of each user and content comprise user account (User ID), password (Password), medium access address (MAC Address), user's set identifier (UUID), key 14 and authority content, wherein authority content can be example but be not limited to user buy or the digital content item of having authorized and authority thereof, as the time limit, context, could copy and propagate.
In addition, project and the content such as the user account in the file data of each user, password, medium access address, user's set identifier, this user's set 13 can be bought in user 4 and the entry network site this user's set 13 being connected to rights management unit 11 carries out the program of Login Register time, rights management unit 11 can obtain in advance and build in the corresponding table 16 of this authority.In some embodiments, the project of the file data of each user and content more can comprise a machine identifier.The user's set 13 of user 4 first can be connected to entry network site registered user account and the password that rights management unit 11 provides.After registration completes, rights management unit 11 first can produce one group of identifying code, this identifying code can be inputted this user's set 13 and do to confirm by user 4, now this user's set 13 can be connected to confirm user identity with rights management unit 11 automatically, confirm errorless after this rights management unit 11 can return a machine identifier and there is this user's set 13 so that rights management unit 11 confirm this user's set 13 make authority.Therefore, when the user profile 133 of encryption comprises user account, password, and be selected from medium access address (MAC Address), user's set identifier (UUID) and machine identifier at least one project time, rights management unit 11 can confirm user's status according to user account, password, and confirms the authority of this user's set 13 according to medium access address (MAC Address), user's set identifier (UUID) and/or machine identifier.
In step S25, this user profile 133 that rights management unit 11 obtains according to deciphering, and utilize the corresponding table 16 of this authority, comparison can confirm whether the status of user 4 and this user's set 13 have authority to this specific digital content.In detail, the data such as user account, password, medium access address, user's set identifier comprised in this user profile 133 that rights management unit 11 obtains according to deciphering, and utilize the corresponding table 16 of this authority, comparison can confirm whether this user 4 is registered registrant, its password whether correct, this user's set 13 to the authority of this specific digital content and whether have and buy new digital content etc.
Then, as shown in step S25, after rights management unit 11 completes Authority Verification, rights management unit 11 sends an Authority Verification result to this digital content providing unit 12.Afterwards, as denoted by step s 26, digital content providing unit 12, according to this Authority Verification result, provides or does not provide this digital content or a network link address to give the digital content interface module 135 of this user's set 13.In this step, if this Authority Verification result is when confirming that this user's set 13 of user 4 has authority to this specific digital content, the digital content interface module 135 that digital content providing unit 12 will provide this digital content or a network link address to give this user's set 13, namely this user's set 13 uses this digital content by digital content interface module 135 by this, such as but not limited to broadcasting film, dials and puts the music on, opens game level, opening movement cover group etc.If this Authority Verification result is confirm that this user's set 13 of user 4 does not have authority to this specific digital content, the then digital content providing unit 12 digital content interface module 135 that will a prompting message be provided to give this user's set 13, to remind this user 4 not have an authority (such as unauthorized or appointed date), or suggestion and recommend this user 4 in the digital content needed for on-line purchase.
In some embodiments, digital content providing unit 12 the digital content that increases newly can an added network shopping mall to 11 construction of rights management unit, and user 4 its demand visual and be connected to rights management unit 11 to buy required digital content with its user's set 13.Due to the management and maintenance of digital content providing unit 12 only combine digital content product, and online transaction, the opening of authority, to verify and management etc. is by directly carrying out between user's set 13 and rights management unit 11, therefore the authority of all user profile, newly-increased authority are all only managed by rights management unit 11 and verify, so can promote maintaining secrecy and security of user profile, avoid user data to outflow.
In sum, digital rights management system provided by the invention and method, it effectively can be maintained secrecy in the process of user profile transmission, third party can not be allowed to obtain user profile, and the authority of rights management unit authentication of users can be made, and the result is sent to digital content providing unit, to make digital content providing unit the digital content of mandate provided and give user's set.User profile can effectively be maintained secrecy to carry out Authority Verification by digital rights management system of the present invention and method, and can solve the prior art problems such as unevident and security is not enough to user profile encryption and decryption efficiency.
The present invention must be appointed by those skilled in the art and executes craftsman and to think and for modifying as all, so neither de-if attached claims institute is for Protector.
Claims (22)
1. a digital rights management system, comprises:
One digital content providing unit, comprises at least one digital content;
One rights management unit, framework is in execution one Authority Verification; And
One user's set, is connected with this digital content providing unit and this rights management unit, and comprises a user profile;
Wherein, this user's set produces a symmetric key, and a PKI of an asymmetric PKI and private key pair is obtained by this rights management unit, and this key is sent to this rights management unit with this public key encryption, this user's set by this user profile with this secret key encryption, and be sent to this rights management unit via this digital content providing unit; And
Wherein, this rights management unit by this secret key decryption, and obtains this user profile with this secret key decryption with a private key of this asymmetric PKI and private key pair, and carries out this Authority Verification according to this user profile.
2. digital rights management system according to claim 1, wherein this user's set is a multimedia platform device, a top box of digital machine, a Web TV, a personal computer, a server, a flat computer or a device for mobile communication.
3. digital rights management system according to claim 1, wherein an Authority Verification result is sent to this digital content providing unit by this rights management unit, and this at least one digital content is provided to this user's set according to this Authority Verification result by this digital content providing unit.
4. digital rights management system according to claim 1, wherein this symmetric key produces with an AES symmetry encryption algorithm, and this asymmetric PKI and private key produce with a RSA unsymmetrical tridiagonal matrix algorithm.
5. digital rights management system according to claim 1, wherein this user profile comprises a user account and a password.
6. digital rights management system according to claim 5, wherein this user profile also comprise a medium access address, a user's set identifier and a machine identifier at least one of them.
7. digital rights management system according to claim 1, wherein this rights management unit comprises an authority correspondence table, and this rights management unit shows comparison according to this user profile is corresponding with this authority, to perform this Authority Verification.
8. a digital rights management method, comprises:
A () provides a digital content providing unit and a rights management unit;
B () provides a user's set, this user's set is made to produce a symmetric key, and this user's set obtains a PKI of an asymmetric PKI and private key pair by this rights management unit, and this key is sent to this rights management unit with this public key encryption;
(c) this rights management unit with a private key of this asymmetric PKI and private key pair by this secret key decryption;
D one user profile with this secret key encryption, and is sent to this rights management unit via this digital content providing unit by () this user's set; And
E () this rights management unit obtains this user profile with this secret key decryption, and carry out an Authority Verification according to this user profile.
9. digital rights management method according to claim 8, wherein also comprises step after this step (e):
F one Authority Verification result is sent to this digital content providing unit by () this rights management unit; And
G at least one digital content is provided to this user's set according to this Authority Verification result by () this digital content providing unit.
10. digital rights management method according to claim 8, wherein this symmetric key produces with an AES symmetry encryption algorithm, and this asymmetric PKI and private key produce with a RSA unsymmetrical tridiagonal matrix algorithm.
11. digital rights management method according to claim 8, wherein this user profile comprises a user account and a password.
12. digital rights management method according to claim 11, wherein this user profile also comprise a medium access address, a user's set identifier and a machine identifier at least one of them.
13. digital rights management method according to claim 8, wherein this rights management unit comprises an authority correspondence table, and in this step (e), this rights management unit shows comparison according to this user profile is corresponding with this authority, to perform this Authority Verification.
14. 1 kinds of information transferring methods, comprising:
A () makes a sender produce a symmetric key, and this sender obtains a PKI of an asymmetric PKI and private key pair by a take over party, and this key is sent to this take over party with this public key encryption;
(b) this take over party with a private key of this asymmetric PKI and private key pair by this secret key decryption;
C one information with this secret key encryption, and is sent to this take over party by () this sender; And
D () this take over party obtains this information with this secret key decryption.
15. information transferring methods according to claim 14, wherein this symmetric key produces with an AES symmetry encryption algorithm, and this asymmetric PKI and private key produce with a RSA unsymmetrical tridiagonal matrix algorithm.
16. information transferring methods according to claim 14, wherein this sender is a user's set, and this take over party is a rights management unit, and this information is a user profile of this user's set.
17. information transferring methods according to claim 16, wherein in this step (c), this user profile with this secret key encryption, and is sent to this rights management unit via a digital content providing unit by this user's set.
18. information transferring methods according to claim 17, wherein in this step (d), this rights management unit carries out an Authority Verification according to this user profile.
19. 1 kinds of message transfer systems, comprise:
One sender, comprises an information; And
One take over party, links with this sender;
Wherein, this sender produces a symmetric key, and this sender obtains a PKI of an asymmetric PKI and private key pair by this take over party, and this key is sent to this take over party with this public key encryption, this sender by this information with this secret key encryption, and be sent to this take over party; And
Wherein, this take over party by this secret key decryption, and obtains this information with this secret key decryption with a private key of this asymmetric PKI and private key pair.
20. message transfer systems according to claim 19, wherein this sender is a user's set, and this take over party is a rights management unit, and this information is a user profile of this user's set.
21. message transfer systems according to claim 20, wherein this user's set is by this user profile with this secret key encryption, and is sent to this rights management unit via a digital content providing unit.
22. message transfer systems according to claim 21, wherein this rights management unit carries out an Authority Verification according to this user profile.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612281A (en) * | 2016-12-26 | 2017-05-03 | 广东技术师范学院 | Electronic resource service right control method based on mobile terminal |
| CN106971119A (en) * | 2017-02-24 | 2017-07-21 | 江苏信源久安信息科技有限公司 | The key data in database safe read-write authentication method of trusted identity |
| CN109788353A (en) * | 2018-12-05 | 2019-05-21 | 安徽站乾科技有限公司 | A kind of set-top box encryption copy prevention method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909023A (en) * | 2005-08-02 | 2007-02-07 | 索尼株式会社 | Transmitting/receiving system and method, transmitting apparatus and method, receiving apparatus and method, and program used therewith |
| CN1937495A (en) * | 2006-09-29 | 2007-03-28 | 清华大学深圳研究生院 | Digital copyright protection method and system for media network application |
| CN101286849A (en) * | 2008-06-11 | 2008-10-15 | 任少华 | Authentication system and method of a third party based on engagement arithmetic |
| US20120144195A1 (en) * | 2009-08-14 | 2012-06-07 | Azuki Systems, Inc. | Method and system for unified mobile content protection |
| CN102740246A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method, system, and device for processing media message |
-
2014
- 2014-01-27 CN CN201410042077.5A patent/CN104809365A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909023A (en) * | 2005-08-02 | 2007-02-07 | 索尼株式会社 | Transmitting/receiving system and method, transmitting apparatus and method, receiving apparatus and method, and program used therewith |
| CN1937495A (en) * | 2006-09-29 | 2007-03-28 | 清华大学深圳研究生院 | Digital copyright protection method and system for media network application |
| CN101286849A (en) * | 2008-06-11 | 2008-10-15 | 任少华 | Authentication system and method of a third party based on engagement arithmetic |
| US20120144195A1 (en) * | 2009-08-14 | 2012-06-07 | Azuki Systems, Inc. | Method and system for unified mobile content protection |
| CN102740246A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method, system, and device for processing media message |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612281A (en) * | 2016-12-26 | 2017-05-03 | 广东技术师范学院 | Electronic resource service right control method based on mobile terminal |
| CN106971119A (en) * | 2017-02-24 | 2017-07-21 | 江苏信源久安信息科技有限公司 | The key data in database safe read-write authentication method of trusted identity |
| CN109788353A (en) * | 2018-12-05 | 2019-05-21 | 安徽站乾科技有限公司 | A kind of set-top box encryption copy prevention method |
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