CN1564255A - Digital memory media protecting method based on online controlled access tech, and its system - Google Patents

Digital memory media protecting method based on online controlled access tech, and its system Download PDF

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Publication number
CN1564255A
CN1564255A CN 200410012888 CN200410012888A CN1564255A CN 1564255 A CN1564255 A CN 1564255A CN 200410012888 CN200410012888 CN 200410012888 CN 200410012888 A CN200410012888 A CN 200410012888A CN 1564255 A CN1564255 A CN 1564255A
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China
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media
access
account
information
medium
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CN 200410012888
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Chinese (zh)
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刘文予
张帆
王长强
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Priority to CN 200410012888 priority Critical patent/CN1564255A/en
Publication of CN1564255A publication Critical patent/CN1564255A/en
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Abstract

Media access controlled device picks up media copyright information and account id, and through network sends copyright information, account id and user access request type to a specific media access control server. Carrying out authentication, the said server generates license for accessing media or sends out command for no access. Based on said command, media access controlled device executes or interrupts access operation. In the invention, fee-collecting procedure is delayed from buying disk to obtaining access limits of authority. That is to say paying money is realized after playing back video immediately.

Description

Digital storage media guard method and system thereof based on online controlled access technology
Technical field
The invention belongs to maintaining secrecy and the secure communication field of numerical information, be specifically related to a kind of digital storage media guard method and system thereof based on online controlled access technology.The present invention is by the modern network communication technology, encryption technology and authentication techniques; make up the transportation of the online controlled access of a kind of medium; create a kind of consumption mode of paying according to access mode and access times; thereby the interests source of breaking off the bootlegger; and ensure the profit channel of media production merchant and publisher, can effectively solve the Copyright Protection of digital storage media.
Background technology
The strong medium copyright protection technology of the audio-visual market demand of prosperity and development is protected author and publisher's interests.Traditional is positioned over encrypted secret key on the media bearer based on the encrypted media resist technology, be difficult to so dynamically adjust protection strategy according to actual conditions, and in case a copy illegally cracked, but batch making illegal copies then.Existing more intense protection scheme need upgrade copyright control information or decruption key by Internet; perhaps the mode of playing by online charging is protected; this just requires to have the Internet environment, causes great inconvenience to the user, has also limited the adaptability of existing medium greatly.Below, introduce several and the approaching documents of the present invention.
One, record regenerator, control method and prevent violated system (application number 02107749.5; publication number 1379377) provides a kind of record regenerator of protecting literary property; it is when having illegal use to have the information of literary property; detect this illegal use, make the machine failure of illegal service recorder as required.
Two, digital data copying controlling system and method thereof and disk player and storage medium (application number 01103457.2, publication number 1308331), this scheme is imbedded the control and management information of duplicating of data mode and digital data form at digital data recording media, when other recording mediums duplicate, understand secret signal and read the control and management information of duplicating, carry out Play Control by the above-mentioned control and management information of duplicating.
Three, information handling system, medium, equipment, method and corresponding storage medium (application number 02104700.6; publication number 1372197) by using a kind of sample procedure; the copyright information that embeds a kind of digital content always can be sampled; and the copyright of digital content can access reliable protection, and this sample procedure is activated and automatically from this digital content this copyright information of taking a sample.
Above invention disclosed all stresses to realize at subscriber's local the identification and the access control of medium copyright; because the copyright sign cracks and forges and can accomplish for the bootlegger; therefore such scheme can't fundamentally be stopped copy right piracy, thereby is difficult to effectively protect the copyright of media content.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, a kind of digital storage media guard method and system thereof based on online controlled access technology is provided; The present invention can stop copy right piracy effectively, thereby protects the rights and interests of digital storage media forcefully.
A kind of digital storage media guard method based on online controlled access technology provided by the invention may further comprise the steps:
(1). medium controlled access equipment reads user account on the identification card and the encrypted media content on the digital media storage medium;
(2). medium controlled access equipment extracts medium copyright information and account identification, and medium copyright information, account identification and user access request type is sent to the media interviews Control Server of appointment by network as request of access;
(3). the media interviews Control Server authenticates medium copyright information and account identification in the request of access that receives, if confirm that media content and account are legal, then visit account database and carry out charge, media distribution merchant account and user account information are sent to the media interviews Control Server, and access media key from the media information database, generate the media interviews licence, this licence comprises media key, charge receipt and access control order, otherwise sends the control command of denied access;
(4) the media interviews Control Server returns to medium controlled access equipment with the media interviews licence, and medium controlled access equipment is according to the access control command execution or interrupt accessing operation.
Realize system for carrying out said process, it is characterized in that: this system comprises media interviews Control Server, medium controlled access equipment, account database and media information database; Wherein,
Account database is used for stored user authentication information and income and expenses, and it provides the accounts information of authentification of user to the media interviews Control Server, and stores user's income and expenses;
The media information database is used to store media informations such as copyright information, key, and it provides the medium authentication required media information to the media interviews Control Server, and the key that decrypt media is provided to the media interviews Control Server;
The media interviews Control Server is the server that control medium controlled access equipment is carried out media interviews; The user's that media interviews Control Server receiving media controlled access equipment sends various request of access are also handled, and are responsible for generating and return corresponding media interviews licence and account is chargeed, or send the control command of denied access;
Medium controlled access equipment is the media player that medium controlled access module is housed, and is used for carrying out under the control of copyright protection the controlled access of medium; Medium controlled access module is used for user's request is sent to the media interviews control module, and the media interviews licence of receiving media access control module transmission or the control command of denied access, utilize media interviews licence decrypt media, carry out user access request or interrupt accessing operation.
Above-mentioned media interviews control module comprises that media information data base administration submodule, account data library management submodule, access control submodule, charging submodule, authentication sub module and licence generate submodule;
The media interviews Control Server obtains account identification, request of access type and media information from medium controlled access equipment, and provides it to authentication sub module; Account data library management submodule and media information data base administration submodule provide the secure access interface of account database and media information database respectively, account data library management submodule reads media distribution merchant accounts information and user account information from account database, and media information data base administration submodule reads media key from the media information database; The access control submodule is responsible for sending media interviews licence and charge receipt to medium controlled access equipment; Authentication sub module judges according to the media distribution merchant's accounts information and the user account information of medium copyright information and account identification and the transmission of account data library management submodule whether account and medium are legal; Checking by after accounts information, request of access type and media information passed to licence generate submodule, this submodule is according to above content, in conjunction with the media key and the current time that obtain from the media information database, generate the media interviews licence and send to medium controlled access equipment and the access control submodule; The charging submodule is judged the expense of should collecting according to account identification, request of access type and media information simultaneously, do corresponding charge record on account database, and the receipt of will charging sends to the access control submodule; The access control submodule returns to medium controlled access equipment with media interviews licence and charge receipt.
Above-mentioned medium controlled access module comprises media access modules, identification card read module, network communication module, deciphering module, decoding output module and central control module;
The media access modules is responsible for reading the information on the media, carries out the read-write operation to medium; The identification card read module is responsible for reading user account from identification card, offers central control module; Network communication module is responsible for providing network insertion, and user's request that central control module is sent sends to server, and the media interviews licence of reception server issue also returns to central control module; Deciphering module extracts the essential media key of visit, decrypt media content from the media interviews licence that server sends; The decoding output module then is responsible for the audio/video file after the decoding output deciphering; Central control module totally is responsible for the logical operation of access control, the control of terminal plays equipment, and dispatch each submodule collaborative work.
The present invention utilizes the flexible net access way, the charging policy of flexible configuration, and the control media content is accessed under the environment of safety.It pushes paying process to access rights obtain from the purchase of video disc, realizes playing promptly pay (play and pay).Content supplier passes through the agreement with the Internet Service Provider, by the number of times decision income of media content visit.The profit mode mainly charge to realize by online access, rather than realizes by realizing peddling media store media such as CD.Thereby fundamentally tackle the piracy that bit duplicates (bit-to-bit), make the cracker profitless.Realization to the broadcast of digital audio/video media, flexile access control such as duplicate.Particularly, the present invention has following technique effect:
(1) for media production merchant/publisher provides profit model more flexibly, charging policy can dispose flexibly at media interviews Control Server end.
(2) for media content provides stronger safeguard measure, encryption key is deposited on the media interviews server, and no longer deposits on the media store medium, when key is through Network Transmission simultaneously, can adopt the multi-enciphering measure to guarantee confidentiality.
(3) interests of cutting off the bootlegging person of medium are originated.It is enough low to adopt " play promptly and pay " mechanism to make the selling price of media copy to reduce to, and makes that the medium illegal copies are profitless.
Description of drawings
Fig. 1 is an online controlled access control flow chart of the present invention;
Fig. 2 is the access to content process flow diagram of the inventive method;
Fig. 3 is the module hierarchy chart based on local data base;
Fig. 4 is the module hierarchy chart based on the remote data storehouse;
Fig. 5 is the structural representation of media interviews control module.
Embodiment
For more clearly explaining content of the present invention, at first some terms are illustrated.
Network Access Provider (ISP): the manufacturer of network access technique is provided, both, as authentication settlement center, was responsible for the authentication and the charging of access to content simultaneously as the provider of network communications environment.
Media content provider: be responsible for providing the digital storage media content, by the network channel distribution video and audio product of Network Access Provider, and according to carrying out profit sharing with the agreement in advance of Network Access Provider.
Terminal user: video and audio product terminal consumer.The identification card mark identity that provides by Network Access Provider.Network Access Provider charges on this user account according to access mode and number of times.The terminal user by prestore, multiple mode such as clearing regularly or aperiodically pays expense according to charge record on the account database.
The present invention is based on following principle realizes:
Obtain for the user by marketing channel flexibly through the encrypted digital media storage medium, it is accessed by the user that these medium can only pass through medium controlled access equipment, and be controlled; Need to adopt the effective accounts information of the online submission of identification card before the user capture medium; After access control server authenticates the copyright information in accounts information and the embedding media, implement charge, and authorize the user capture licence; After getting a license, the user can obtain the corresponding access rights of medium.
Following elder generation is introduced digital media storage medium and identification card.
1. digital media storage medium
The digital media storage medium adopts a kind of new digital medium safety storage standards to come the medium of recording digital content and copyright information.
The digital storage media storage medium that the present invention visited is a kind of medium that adopts new digital storage media safe storage form to come recording digital content and copyright information.The file layout of digital storage media and published method can be versatile and flexible.A complete digital storage media comprises two parts: the digital storage media content after the encryption and the copyright information of medium.
Media content provider is the selected media key of the digital storage media version of distribution, and all copies of this version will use this key.The encryption of media content can select for use the methods such as stream cipher encryption method of symmetry to carry out.The process of deciphering is carried out in medium controlled access module.
The copyright information of medium comprises content identification (content identifier) and access control mark (access control mark) two classes.
1) content identification
Content identification is used for reference numerals medium uniquely.Its content identification difference of different digital storage medias.Content comprises the distribution lot number of issuing date, content supplier's sign and content copy etc.Content identification is positioned at before the audio/video file as file header with the plaintext form.To these information any distort the mistake that will cause the server end authentication, thereby can't obtain media key.
2) access control mark
The accessing operation that the access control mark adopts medium protected by copyright to allow.Deposit in the read-only zones of storage medium, can only be when making storage medium one-time write, this district's content can't be revised by domestic consumer.(for example, just there is such read-only zones in the DVD CD, can only be at compacting writing information during stamper, domestic consumer can't be by recording device writing information once more).After the user sends the media interviews request, should ask at first to indicate to compare with the visit copyright control.If user's operation exceeds the authority that this sign allows, then can't carry out accessing operation.
2. identification card
Identification card is used for being identified at the unique identity of the terminal user of system.
Identification card can be external, also can be built in the medium controlled access equipment of user side, reads wherein information by the identification card read module in the medium controlled access equipment, to be identified at the unique identity of terminal user in the system.The user can use new number of the account by buying identification card.Send in the user access request at medium controlled access device-to-server, comprise the account identification that reads out from this card.Server is judged user identity in view of the above, carries out carrying out the judgement of distribution media access permission card and the operation that the account is chargeed.
Below in conjunction with accompanying drawing workflow of the present invention is described in further detail.
The user obtains encrypted media copy, can only be on the medium controlled access equipment of the technical manual that meets the body series definition access media content, its media interviews flow process is as shown in Figure 1.
(1). the user is input to user account a1 on the identification card and the encrypted media content a2 on the digital media storage medium in the medium controlled access equipment 1.1, for example inserts subscriber identification card and media discs.
(2). medium controlled access equipment 1.1 extracts medium copyright information b1 and account identification b2, and medium copyright information b1, account identification b2 and user access request type b3 is sent to the media interviews Control Server 1.2 of appointment by network (for example common mobile communication network, public telephone network or the Internet) as request of access.
(3). medium copyright information and account identification authenticate in the request of access of 1.2 pairs of receptions of media interviews Control Server, if confirm that media content and account are legal, then visit account database 2.2 and carry out charge, media distribution merchant account c2 and user account information c3 are sent to media interviews Control Server 1.2, and access media key c1, otherwise send the control command of denied access from media information database 2.1.
(4). media interviews Control Server 1.2 returns to medium controlled access equipment 1.1 with media interviews licence d1 (comprising media key, charge receipt and access control order), and medium controlled access equipment 1.1 is according to the access control command execution or interrupt accessing operation.
Its detailed access process as shown in Figure 2.
System forms
This system comprises four parts: media interviews Control Server 1.2, medium controlled access equipment 1.1, account database 2.2 and media information database 2.1.
1, account database
The database of account database 2.2 stored user authentication information and income and expenses, it provides the accounts information of authentification of user to the media interviews Control Server, and stores user's income and expenses.
2. media information database
The database of media informations such as media information database 2.1 storage copyright informations, key, it provides the medium authentication required media information to the media interviews Control Server, and the key that decrypt media is provided to the media interviews Control Server.
Media information database and account database can be positioned at media interviews Control Server this locality, also can be positioned at far-end, are in charge of and are safeguarded by special unit (as media distribution merchant, bank etc.).All media information database and account database that are distributed in various places all adopt unified media information storage format and account storage format, so that communicate by letter with the media interviews Control Server.
3, media interviews Control Server
Media interviews Control Server 1.2 is servers that control medium controlled access equipment 1.1 is carried out media interviews.The media interviews Control Server is responsible for the various requests of visit that process user proposes, and according to different requests, generates and returns corresponding media interviews licence, and account is chargeed.
As shown in Figure 3, media interviews control module comprises that media information data base administration submodule 3.1, account data library management submodule 3.2, access control submodule 3.3, charging submodule 4.1, authentication sub module 4.2 and licence generate submodule 4.3.According to realizing function and step, the media interviews Control Server can be divided into three layers from bottom to top: network access layer, message reference and key-course and application service layer.Wherein lower floor provides service for the upper strata.
Network access layer provides the access of various types of networks, be responsible for receiving account identification, request of access type and media information with the network interface 2.3 of medium controlled access equipment, and it is directly offered the authentication sub module 4.2 of application service layer from medium controlled access equipment 1.1; The account data library management submodule 3.2 of message reference and key-course and media information data base administration submodule 3.1 provide account database and media information access of database interface respectively, account data library management submodule 3.2 reads media distribution merchant accounts information c2 and user account information c3 from account database 2.2, and media information data base administration submodule 3.1 reads media key c1 from media information database 2.1.3.3 of access control submodules are responsible for sending media interviews licence d1 and charge receipt d2 to the network interface 2.3 of medium controlled access equipment.The authentication sub module 4.2 of application service layer judges according to the medium copyright information b1 of network interface 2.3 transmissions of medium controlled access equipment and the media distribution merchant's accounts information c2 and the user account information c3 of account identification b2 and 3.2 transmissions of account data library management submodule whether account and medium are legal.Checking by after accounts information, request of access type and media information passed to licence generate submodule 4.3, this submodule is according to above content, in conjunction with the media key and the current time that obtain from the media information database, generate media interviews licence d1, and send to access control submodule 3.3.Charging submodule 4.1 is judged the expense of should collecting according to account identification, request of access type and media information simultaneously, do corresponding charge record on account database, and the receipt d2 that will charge sends to access control submodule 3.3.At last, access control submodule 3.3 returns to media interviews licence d1 and charge receipt d2 the network interface 2.3 of medium controlled access equipment.
Along with account database 2.2 is different with the position of media information database 2.1, the hierarchical structure of media interviews control module also can flexible configuration.Among Fig. 3, account database 2.2 and media information database 2.1 all are positioned at this locality, and then media interviews Control Server 1.2 is realized the management of account and media information simultaneously.Among Fig. 4, account database and media information database all are positioned at far-end, so network insertion submodule 2.4 also is responsible for the access to far-end account database and media information database.At this moment, can transfer to e-bank and medium provider respectively to the management of account database and media information database is responsible for.
The architecture of this programme does not define and retrains the framework and the operation way of media interviews Control Server.Appropriate (typically) operation mode be the terminal user by prestore, multiple mode such as clearing regularly or aperiodically pays expense according to charge record on the account database.Provide media interviews control service zone network operator then according to carrying out profit sharing with the agreement of content supplier.Also network access mode is not done definition in above-mentioned architecture.Expenses standard and strategy also can dynamically be adjusted according to the agreement and the sales situation in the market of media content provider and Network Access Provider.
4, medium controlled access equipment
Medium controlled access equipment is meant the media player that medium controlled access module is housed, and is used for carrying out under the control of copyright protection the controlled access of medium, access mode comprise read, broadcast etc.The function of medium controlled access module comprises asks to send to the media interviews control module with the user; Utilize media interviews licence decrypt media; Carry out user access request etc.
Medium controlled access module is responsible for carrying out media interviews under controlled environment.Access mode comprise read, broadcast etc.The implementation of controlled access is by user request being sent to media interviews control module server, obtain respective media access permission card after, decrypt media also conducts interviews.As shown in Figure 5, medium controlled access module can be divided on function: media access modules 7, identification card read module 8, network communication module 9, deciphering module 6, decoding output module 10 and central control module 5.
Media access modules 7 is responsible for reading the information on the media, carries out the read-write operation to medium; Identification card read module 8 is responsible for reading user account a1 from identification card, offers central control module 5; Network communication module 9 is responsible for providing network insertion, and user's request that central control module 5 is sent sends to server, and the media interviews licence of reception server issue also returns to central control module 5; Deciphering module 6 extracts the essential media key c1 of visit, decrypt media content from the media interviews licence d1 that server sends; 10 of decoding output modules are responsible for the audio/video file after the decoding output deciphering; The central control module 5 overall logical operations of being responsible for access control, the control of terminal plays equipment, and dispatch each submodule collaborative work.Identification card read module 8 is used for being identified at the unique identity of the terminal user of system.Identification card read module 8 is built in the user side medium controlled access equipment, is used for being identified at the unique identity of the terminal user of system.The user can use new number of the account by buying identification card.Send in the user access request at medium controlled access device-to-server, comprise the account identification that reads out from this card.Server is judged user identity in view of the above, carries out carrying out the judgement of distribution media access permission card and the operation that the account is chargeed.
After the user sends the request of access medium, central control module 5 at first will ask and storage medium on access control mark compare (referring to description) to the digital media storage medium.Under the prerequisite that request allows, choose the current time, relevant information and user access request generate the user access request (access request) of standard on the identification card.
After receiving the media interviews licence that server sends, central control module 5 is at first confirmed the rationality of media interviews licence, confirm by after the medium decruption key is therefrom extracted, carry out the desired visit of user.
Example:
In this example, we realize online controlled access by common mobile communication network, and the SIM card of using by mobile phone is as subscriber identification card, thereby realize mobile payment; Adopt DVD laser disc storing media content.
The present invention can be widely used in the protection of digital storage media, with a representative instance implementing procedure of the present invention is described below.
Certain user has bought a video and audio CD disc that meets the data storage standard of the present invention's definition, and he wishes to show on the controlled access CD-ROM device of buying that meets the present invention's definition himself.Flow process is as follows:
1 user puts into CD-ROM device with the DVD laser disc, and presses play button, requires to play video content.
Medium controlled access module reads the access rights control mark in the video disc media file head in 2 CD-ROM device, and whether the request of access type of judging the user is within the access rights that media content allowed, if, then enter next step, otherwise the request of access of refusing user's.
Whether have available media interviews licence in the 3 medium controlled access module check CD-ROM device, if having, then extract key, the decrypt media content realizes user's operation requests.Otherwise change next step over to.
4 CD-ROM device obtain account identification from built-in SIM card, obtain media information and request of access type from the DVD laser disc, and generate the request of access (access request) of standard format, send to the media interviews Control Server by common mobile communication network.
After the network access layer of 5 media interviews Control Servers receives user access request, the account identification and the media information that comprise in the request are submitted to authentication sub module.
6 media interviews Control Servers visits account database authenticates account identification, if authentification failure denied access then, if authentication success then enters next step.
7 media interviews Control Server access medium information databases authenticate media content, and whether examine media content legal.If authentification failure is denied access then, if authentication success then enters next step.
8 media interviews Control Servers charge to user account according to account identification, request of access type and media information.
9 media interviews Control Servers obtain media key according to the version querying media information database of media content, in conjunction with user's request of access type generation media interviews licences (license).
10 media interviews Control Servers return the media interviews licence by common mobile communication network to CD-ROM device.(detailed process is referring to the media interviews control module).
After 12 CD-ROM device are received the media interviews licence, extract wherein decruption key, enabling decryption of encrypted media content, DVD playing back laser disc content.
13 charging daily records according to the media interviews Control Server, Internet Service Provider and media content provider periodic dividend.

Claims (4)

1, a kind of digital storage media guard method based on online controlled access technology may further comprise the steps:
(1). medium controlled access equipment reads user account on the identification card and the encrypted media content on the digital media storage medium;
(2). medium controlled access equipment extracts medium copyright information and account identification, and medium copyright information, account identification and user access request type is sent to the media interviews Control Server of appointment by network as request of access;
(3). the media interviews Control Server authenticates medium copyright information and account identification in the request of access that receives, if confirm that media content and account are legal, then visit account database and carry out charge, media distribution merchant account and user account information are sent to the media interviews Control Server, and access media key from the media information database, generate the media interviews licence, this licence comprises media key, charge receipt and access control order, otherwise sends the control command of denied access;
(4) the media interviews Control Server returns to medium controlled access equipment with the media interviews licence, and medium controlled access equipment is according to the access control command execution or interrupt accessing operation.
2, realize the system of the described method of claim 1, it is characterized in that: this system comprises media interviews Control Server (1.2), medium controlled access equipment (1.1), account database (2.2) and media information database (2.1); Wherein,
Account database (2.2) is used for stored user authentication information and income and expenses, and it provides the accounts information of authentification of user to the media interviews Control Server, and stores user's income and expenses;
Media information database (2.1) is used to store media informations such as copyright information, key, and it provides the medium authentication required media information to the media interviews Control Server, and the key that decrypt media is provided to the media interviews Control Server;
Media interviews Control Server (1.2) is the server that control medium controlled access equipment (1.1) are carried out media interviews; The user's that media interviews Control Server receiving media controlled access equipment sends various request of access are also handled, and are responsible for generating and return corresponding media interviews licence and account is chargeed, or send the control command of denied access;
Medium controlled access equipment (1.1) is used for carrying out the controlled access of medium for the media player of medium controlled access module is housed under the control of copyright protection; Medium controlled access module is used for user's request is sent to the media interviews control module, and the media interviews licence of receiving media access control module transmission or the control command of denied access, utilize media interviews licence decrypt media, carry out user access request or interrupt accessing operation.
3, system according to claim 2 is characterized in that: above-mentioned media interviews control module comprises that media information data base administration submodule (3.1), account data library management submodule (3.2), access control submodule (3.3), charging submodule (4.1), authentication sub module (4.2) and licence generate submodule (4.3);
Media interviews Control Server (1.2) obtains account identification, request of access type and media information from medium controlled access equipment (1.1), and provides it to authentication sub module (4.2); Account data library management submodule (3.2) and media information data base administration submodule (3.1) provide the secure access interface of account database and media information database respectively, account data library management submodule (3.2) reads media distribution merchant accounts information (c2) and user account information (c3) from account database (2.2), and media information data base administration submodule (3.1) reads media key (c1) from media information database (2.1); Access control submodule (3.3) is responsible for sending media interviews licences (d1) and charge receipt (d2) to medium controlled access equipment; Authentication sub module (4.2) judges according to medium copyright information (b1) and media distribution merchant's accounts information (c2) and user account information (c3) that account identification (b2) and account data library management submodule (3.2) send whether account and medium are legal; Checking by after accounts information, request of access type and media information passed to licence generate submodule (4.3), this submodule is according to above content, in conjunction with the media key and the current time that obtain from the media information database, generate media interviews licences (d1) and send to medium controlled access equipment (1.1) and access control submodule (3.3); Charging submodule (4.1) is judged the expense of should collecting according to account identification, request of access type and media information simultaneously, do corresponding charge record on account database, and the receipt (d2) of will charging sends to access control submodule (3.3); Access control submodule (3.3) returns to medium controlled access equipment with media interviews licence (d1) and charge receipt (d2).
4, according to claim 2 or 3 described systems, it is characterized in that: above-mentioned medium controlled access module comprises media access modules (7), identification card read module (8), network communication module (9), deciphering module (6), decoding output module (10) and central control module (5);
Media access modules (7) is responsible for reading the information on the media, carries out the read-write operation to medium; Identification card read module (8) is responsible for reading user account (a1) from identification card, offers central control module (5); Network communication module (9) is responsible for providing network insertion, and user's request that central control module (5) is sent sends to server, and the media interviews licence of reception server issue also returns to central control module (5); Deciphering module (6) extracts the essential media key (c1) of visit, decrypt media content from the media interviews licence (d1) that server sends; Decoding output module (10) then is responsible for the audio/video file after the decoding output deciphering; Central control module (5) totally is responsible for the logical operation of access control, the control of terminal plays equipment, and dispatch each submodule collaborative work.
CN 200410012888 2004-03-24 2004-03-24 Digital memory media protecting method based on online controlled access tech, and its system Pending CN1564255A (en)

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CN101290641B (en) * 2007-04-16 2010-10-13 华为技术有限公司 Method for trigger equipment executing operation, equipment and system thereof
CN101009550B (en) * 2006-01-26 2010-11-03 中国科学院计算技术研究所 Data transfer system for digital copyright management
CN101534433B (en) * 2009-04-22 2011-06-22 北京航空航天大学 Streaming media encryption method
CN102693373A (en) * 2011-03-25 2012-09-26 株式会社野村综合研究所 Service information protective device
WO2013083072A1 (en) * 2011-12-09 2013-06-13 北大方正集团有限公司 Method and system for digital content online reading authentication
WO2014194674A1 (en) * 2013-06-08 2014-12-11 中兴通讯股份有限公司 Method, device and system for playing service content and authentication device
CN105915566A (en) * 2016-07-06 2016-08-31 杨炳 Safety system used for real-time account access
CN109871665A (en) * 2017-12-04 2019-06-11 音乐狗股份有限公司 The digital strong-room of the music owner

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101009550B (en) * 2006-01-26 2010-11-03 中国科学院计算技术研究所 Data transfer system for digital copyright management
WO2008022510A1 (en) * 2006-08-18 2008-02-28 Huawei Technologies Co., Ltd. Method and system for backing up and recovering license
CN101317380B (en) * 2006-08-18 2012-09-05 华为技术有限公司 Method and system for license backup and recovery
CN101290641B (en) * 2007-04-16 2010-10-13 华为技术有限公司 Method for trigger equipment executing operation, equipment and system thereof
CN101534433B (en) * 2009-04-22 2011-06-22 北京航空航天大学 Streaming media encryption method
CN102693373A (en) * 2011-03-25 2012-09-26 株式会社野村综合研究所 Service information protective device
CN102693373B (en) * 2011-03-25 2016-11-16 株式会社野村综合研究所 Business information preventer
WO2013083072A1 (en) * 2011-12-09 2013-06-13 北大方正集团有限公司 Method and system for digital content online reading authentication
WO2014194674A1 (en) * 2013-06-08 2014-12-11 中兴通讯股份有限公司 Method, device and system for playing service content and authentication device
CN104243404A (en) * 2013-06-08 2014-12-24 中兴通讯股份有限公司 Business content playing method, device, system and authentication device
CN105915566A (en) * 2016-07-06 2016-08-31 杨炳 Safety system used for real-time account access
CN109871665A (en) * 2017-12-04 2019-06-11 音乐狗股份有限公司 The digital strong-room of the music owner

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