CN102142067A - Digital family network-based digital rights management system - Google Patents
Digital family network-based digital rights management system Download PDFInfo
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- CN102142067A CN102142067A CN201110056025XA CN201110056025A CN102142067A CN 102142067 A CN102142067 A CN 102142067A CN 201110056025X A CN201110056025X A CN 201110056025XA CN 201110056025 A CN201110056025 A CN 201110056025A CN 102142067 A CN102142067 A CN 102142067A
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Abstract
The invention discloses a digital family network-based digital rights management system, which comprises a family gateway, user equipment and a digital rights management (DRM) server, wherein the family gateway is used for acting the interaction of the user equipment and the DRM server, acquiring digital contents and digital licenses and managing all kinds of user equipment in a family network; and the DRM server is positioned on an external network and is used for providing the digital contents, releasing the digital licenses and providing identity certificates for the family gateway and the state query of the certificates. By the technical scheme, resource sharing of a plurality of users in the family network can be realized, and the flexibility and safety of management in a rights management mode are improved.
Description
Technical field
The present invention relates to digital home technical field, be specifically related to a kind of system for numeral copyright management based on digital home network.
Background technology
Home network is meant by family gateway equipment public network functions and application extended to family, and connects various information terminals with wired or wireless network, reach information within the family net and outside public network abundant circulation and share.The user can enjoy such as services such as access to netwoks, IP phone, VOD program request, interactive games by home network.
Simultaneously, the characteristics that copyright is replicated easily and propagates make that the piracy of network digital works is very serious, have greatly damaged the interests of content supplier, hindered the latter further provide the service and open up a market.At present, addressing this problem topmost method is to adopt the digital copyright management technology.
Digital copyright management (Digital Rights Management; Be called for short: DRM) refer to more usufructuary technology that publisher is used for controlling protected object; these technical protections digitized content (for example: software, music, film) and hardware arranged, handle the use restriction of certain example of digital product. this term easily and copyright protection obscure.Copyright protection refers to is applied in technology on the digital media content on the electronic equipment, can control and limit the right to use of these digital media content after copyright protection technology uses.
The principle of work of DRM system is files such as audio frequency, video to be carried out scrambled handle, and sets up a certificate granting service centre again; When the user used these encrypt files, application software can be included in relevant attribute in the header file according to it and automatically link to corresponding website (certificate granting service centre) and obtain corresponding certificate; Have only the checking by authorization center and obtain the authorization, could use files such as these sounds, video, thereby tightly effectively protect the copyright and the rights of using of these digital multimedia products.
Yet the unique distinction of home network makes that these present DRM systems are not suitable fully to it.For example, in home network, the user wishes generally to realize that the convenience of digital content shares between equipment, and most of DRM system does not support this.Like this, even certain digital content is Already on the subscriber equipment in the home network, when miscellaneous equipment will use this digital content, still need with the DRM system in authorization server initiate to be connected, again ask the digital license of this content, make troubles for the content sharing in the home network, and limited the application of DRM system in home network to a certain extent.
At the content sharing problem of a plurality of users in the DRM system, Open Mobile Alliance (OMA) has proposed " territory " notion (domain) in the DRM 2.0 of its issue.It points out, can comprise a plurality of DRM agencies in the territory, and authorization server can be tied to right and content decryption key on all DRM agencies in this territory, even so these DRM agencies under the situation of off-line, also can carry out the shared of digital content.Some researchers utilize this thought, have proposed different DRM solutions at the home network applied environment.
The present inventor finds: existing DRM system or come with some shortcomings at the aspects such as dirigibility of managing entitlement pattern, management about the DRM solution of home network, therefore people wish to provide a kind of new DRM system based on digital home network, to solve existing defective.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system for numeral copyright management based on digital home network, can remedy the deficiency of existing system for numeral copyright management at aspects such as the dirigibility of managing entitlement pattern, management, securities.
Technical solution of the present invention is as follows:
The invention provides a kind of system for numeral copyright management based on digital home network:
Comprise home gateway, subscriber equipment, DRM server;
Home gateway is used for proxy user equipment and DRM server interaction, obtains digital content and digital license, all subscriber equipmenies of managing family network internal;
The DRM server is positioned at external network, is used to be responsible for to provide digital content, issue digital license, letter of identity is provided and the status poll of certificate is provided for home gateway.
Optionally, the DRM server comprises authentication center's server, content server, authorization server;
Content server is responsible for providing digital content,
Authorization server is responsible for issuing digital license,
Authentication center's server provides letter of identity for home gateway and the status poll of certificate is provided.
Optionally, what home network adopted is with different levels network structure, is divided into master network and two sub-networks, and corresponding one family primary gateway and two family's subnets close;
Primary gateway is the control center of this home network, and responsible master network is communicated by letter with external network;
Family's subnet closes and is divided into fixed equipment subnet pass and mobile device subnet pass.
Optionally, the fixed equipment subnet close to adopt wired mode to control communicating by letter of fixed equipment and master network in the home network,
The mobile device subnet close to adopt communicating by letter of mobile device and master network in the wireless mode control home network.
Optionally, mobile device and fixed equipment are managed respectively, and the normal phase of fixed equipment registration back is effective, connects use only for this behind the mobile device enrollment status certificate.
Optionally, system has the digital content sharing functionality, when digital content exists in home network, can transmit shared mutually.
Need be when optionally, between home gateway and DRM server, family subnet pass and subscriber equipment and subscriber equipment, carrying out content delivery by authentication.
Technique scheme as can be seen, the present invention has following beneficial effect:
Because the embodiment of the invention adopts a kind of system for numeral copyright management based on digital home network, can realize that multi-user's digital content is shared, can remedy the deficiency of existing system for numeral copyright management at the aspects such as dirigibility of managing entitlement pattern, management.With respect to traditional system for numeral copyright management, be applied in and aspect content sharing, have inconvenience in the home network, technical solution of the present invention can realize the resource sharing of multi-user in the home network, adopt network structure management user device by different level, subscriber equipment all must carry out authentication when communicating by letter with DRM server etc. with subnet pass, primary gateway, so all there is being obvious lifting in this system aspect the dirigibility of managing entitlement pattern, management and the security.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a system construction drawing of the present invention;
Fig. 2 is the sequential chart of the system for numeral copyright management operation that proposes of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of digital copyright management method based on digital home network, can remedy the deficiency of existing system for numeral copyright management at the aspects such as dirigibility of managing entitlement pattern, management.
Below in conjunction with accompanying drawing technical solution of the present invention is elaborated respectively.
As shown in Figure 1, comprise 3 parts in the native system: home gateway, subscriber equipment and DRM server.
1, home gateway is a specialized equipment in the home network, but digital content and digital license are obtained in proxy user equipment and DRM server interaction, and all subscriber equipmenies of managing family network internal.
In this home network, employing be with different levels network structure, be divided into a master network and two sub-networks, total one family primary gateway and two family's subnets close.Primary gateway is the control center of this home network, and responsible master network is communicated by letter with external network;
Described family subnet closes and is divided into fixed equipment subnet pass and mobile device subnet pass.The fixed equipment subnet close to adopt wired mode to control communicating by letter of fixed equipment and master network in the home network, and the mobile device subnet closes and adopts WIFI, bluetooth, wireless mode such as infrared to control communicating by letter of mobile device and master network in the home network.
2, subscriber equipment is each class of electronic devices in the home network, and being divided into is two classes: a class is a fixed equipment, as PC, Digital Television, phone etc.; One class is a mobile device, as portable computer, smart mobile phone, PDA etc.
3, the DRM server is positioned at external network, comprises authentication center's server, content server, authorization server etc.Wherein content server is responsible for providing digital content, and authorization server is responsible for issuing digital license, and authentication center's server provides letter of identity for home gateway and the status poll of certificate is provided.
Described digital home network adopts hierarchy, mobile device and fixed equipment are managed respectively, and the normal phase of fixed equipment registration back is effective, connects use only for this behind the mobile device enrollment status certificate, by different gateway management distinct devices, improved the validity and the dirigibility of system management.
Described system for numeral copyright management has the digital content sharing functionality, when digital content exists in home network, can transmit shared mutually.
When described system for numeral copyright management carries out content delivery between home gateway and DRM server, family subnet pass and subscriber equipment and subscriber equipment, must guarantee safety of data transmission by authentication.
This system carries out the registration of subscriber equipment in the following way and removes.When increasing a fixed user equipment newly in family's network, this subscriber equipment closes 1 registration with the acquisition letter of identity to subnet, and in fixed equipment subnet Central Shanxi Plain long preservation, need not re-register when obtaining digital content and digital certificate at every turn again; When having a new mobile device need obtain digital content or digital license in family's network, this mobile device closes registration to the mobile device subnet, obtains the temporary identity certificate, and this certificate only limits to this digital content request.When the fixed equipment application in family's network was withdrawed from home network, mobile device and finished digital content request or each equipment and have piracy, home gateway will remove this subscriber equipment.
The process of the system for numeral copyright management operation that the present invention proposes as shown in Figure 2.When existing registered subscriber equipment to need digital content, by home gateway agency it to this content of DRM server requests and carry out corresponding DRM function.Idiographic flow is as follows:
1, wishes to obtain certain digital content when a subscriber equipment, with it family subnet pass of using is connected earlier, submit its letter of identity to.
2, family's subnet closes the legitimacy of verifying its identity according to the subscriber equipment letter of identity.If, then feed back to subscriber equipment to carry out next step operation by checking.
3, subscriber equipment closes request digital content and digital license to family's subnet.
4, family's subnet closes request is transmitted to family's primary gateway.
5, family's primary gateway and DRM server connect, and submit its letter of identity to.
6, the DRM server is verified the legitimacy of its identity according to the letter of identity of family's primary gateway.If, then feed back to family's primary gateway, to carry out next step operation by checking.
7, family's primary gateway is to the content and the certificate request of this subscriber equipment of DRM server forwards.
8, the DRM server is collected corresponding cost according to its request, and then that it is required digital content and corresponding digital licence are transferred to family's primary gateway.
9, after family's primary gateway is received digital content and digital license, utilize the private key deciphering digital license of oneself, then certificate and content are transmitted to this corresponding family subnet pass.
10, family's subnet closes certificate and digital content is transmitted to the requesting users equipment that sends.
This system realizes multi-user's content sharing in the following way:
When subscriber equipment (supposing A) needed certain digital content, if this content is Already on other subscriber equipment of this digital home network (false height be B), then B can be transmitted to A with this digital content, and detailed process is as follows:
1, A and family's subnet close and connect, and ask certain digital content, if family's subnet closes request are transmitted to family's primary gateway.If primary gateway is found this content Already on the subscriber equipment B, then it needn't ask this content again to DRM, and A is informed in the position of B.
2, A and B close by family's primary gateway and subnet and connect, and submit oneself letter of identity and content requests to B.
3, the identity of B checking A.If by checking, then B sends to A with digital content and the digital license that A asked.
4, A deciphering digital license and digital content, and use resulting digital content.
In sum, the present invention has following beneficial effect:
Because the embodiment of the invention adopts a kind of system for numeral copyright management based on digital home network, can realize that multi-user's digital content is shared, can remedy the deficiency of existing system for numeral copyright management at the aspects such as dirigibility of managing entitlement pattern, management.With respect to traditional system for numeral copyright management, be applied in and aspect content sharing, have inconvenience in the home network, technical solution of the present invention can realize the resource sharing of multi-user in the home network, adopt network structure management user device by different level, subscriber equipment all must carry out authentication when communicating by letter with DRM server etc. with subnet pass, primary gateway, so all there is being obvious lifting in this system aspect the dirigibility of managing entitlement pattern, management and the security.
More than to a kind of system for numeral copyright management that the embodiment of the invention provided based on digital home network, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. system for numeral copyright management based on digital home network is characterized in that:
Comprise home gateway, subscriber equipment, DRM server;
Home gateway is used for proxy user equipment and DRM server interaction, obtains digital content and digital license, all subscriber equipmenies of managing family network internal;
The DRM server is positioned at external network, is used to be responsible for to provide digital content, issue digital license, letter of identity is provided and the status poll of certificate is provided for home gateway.
2. the system for numeral copyright management based on digital home network according to claim 1 is characterized in that:
The DRM server comprises authentication center's server, content server, authorization server;
Content server is responsible for providing digital content,
Authorization server is responsible for issuing digital license,
Authentication center's server provides letter of identity for home gateway and the status poll of certificate is provided.
3. the system for numeral copyright management based on digital home network according to claim 1 and 2 is characterized in that:
What home network adopted is with different levels network structure, is divided into master network and two sub-networks, and corresponding one family primary gateway and two family's subnets close;
Primary gateway is the control center of this home network, and responsible master network is communicated by letter with external network;
Family's subnet closes and is divided into fixed equipment subnet pass and mobile device subnet pass.
4. the system for numeral copyright management based on digital home network according to claim 3 is characterized in that:
The fixed equipment subnet close to adopt wired mode to control communicating by letter of fixed equipment and master network in the home network;
The mobile device subnet close to adopt communicating by letter of mobile device and master network in the wireless mode control home network.
5. the system for numeral copyright management based on digital home network according to claim 1 and 2 is characterized in that:
Mobile device and fixed equipment are managed respectively, and the normal phase of fixed equipment registration back is effective, connects use only for this behind the mobile device enrollment status certificate.
6. the system for numeral copyright management based on digital home network according to claim 1 and 2 is characterized in that:
System has the digital content sharing functionality, when digital content exists in home network, transmits mutually and shares.
7. the system for numeral copyright management based on digital home network according to claim 1 and 2 is characterized in that:
Need be when between home gateway and DRM server, family subnet pass and subscriber equipment and subscriber equipment, carrying out content delivery by authentication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110056025XA CN102142067A (en) | 2011-03-09 | 2011-03-09 | Digital family network-based digital rights management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110056025XA CN102142067A (en) | 2011-03-09 | 2011-03-09 | Digital family network-based digital rights management system |
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| CN201110056025XA Pending CN102142067A (en) | 2011-03-09 | 2011-03-09 | Digital family network-based digital rights management system |
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Cited By (8)
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| CN102655511A (en) * | 2012-05-25 | 2012-09-05 | 中山大学 | Home gateway based cloud security decryption method and system |
| CN102685144A (en) * | 2012-05-25 | 2012-09-19 | 中山大学 | Cloud security processing method and system based on home gateway |
| CN103377322A (en) * | 2012-04-26 | 2013-10-30 | 国民技术股份有限公司 | Digital rights management (DRM) protecting device and DRM license using method |
| CN103401943A (en) * | 2013-08-13 | 2013-11-20 | 无锡中电科物联网创新研发中心 | Information sharing system and method based on WIFI |
| CN106537864A (en) * | 2014-10-24 | 2017-03-22 | 华为技术有限公司 | Resource access method and apparatus |
| CN107679369A (en) * | 2016-08-02 | 2018-02-09 | 华为技术有限公司 | A kind of method, apparatus and system of the licensing of shared digital content |
| CN110601936A (en) * | 2019-09-24 | 2019-12-20 | 涂益民 | Digital photo album sharing system based on digital home network |
| CN110909313A (en) * | 2019-09-18 | 2020-03-24 | 龙建春 | Digital copyright management system based on home digital network |
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Cited By (13)
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| CN103377322A (en) * | 2012-04-26 | 2013-10-30 | 国民技术股份有限公司 | Digital rights management (DRM) protecting device and DRM license using method |
| CN103377322B (en) * | 2012-04-26 | 2016-12-14 | 国民技术股份有限公司 | DRM protection device and DRM method for using license |
| CN102655511A (en) * | 2012-05-25 | 2012-09-05 | 中山大学 | Home gateway based cloud security decryption method and system |
| CN102685144A (en) * | 2012-05-25 | 2012-09-19 | 中山大学 | Cloud security processing method and system based on home gateway |
| CN103401943A (en) * | 2013-08-13 | 2013-11-20 | 无锡中电科物联网创新研发中心 | Information sharing system and method based on WIFI |
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| CN106537864A (en) * | 2014-10-24 | 2017-03-22 | 华为技术有限公司 | Resource access method and apparatus |
| US11082848B2 (en) | 2014-10-24 | 2021-08-03 | Huawei Technologies Co., Ltd. | Resource access method and apparatus |
| US11812264B2 (en) | 2014-10-24 | 2023-11-07 | Huawei Cloud Computing Technologies Co., Ltd. | Resource access method and apparatus |
| CN107679369A (en) * | 2016-08-02 | 2018-02-09 | 华为技术有限公司 | A kind of method, apparatus and system of the licensing of shared digital content |
| CN110909313A (en) * | 2019-09-18 | 2020-03-24 | 龙建春 | Digital copyright management system based on home digital network |
| CN110601936A (en) * | 2019-09-24 | 2019-12-20 | 涂益民 | Digital photo album sharing system based on digital home network |
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Application publication date: 20110803 |