JP2002288045A - Contents provision method and device, contents provision program and storage medium storing the contents provision program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a communication making contents as a topic and to simultaneously protect a right, i.e., a value income of an owner's copyright. SOLUTION: DCD comprising a contents ID and an attribute information is owned jointly between users. The contents data purchased by the user using the DCD is encoded and decoded by a hardware (IC card, etc.), having a tamper resistance of a user terminal. Then this is regenerated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a content providing method and apparatus, a content providing program, and a storage medium storing the content providing program, and more particularly to providing content such as music and video to a user via a network. And a storage medium storing the content providing program.

[0002]

2. Description of the Related Art In recent years, the digitization of information and the spread of the Internet have made it possible to distribute and provide contents such as video and music using a network. In addition, Internet users exchange information with each other by e-mail, bulletin board, chat, etc.
It is possible to communicate. For example, when communicating on a topic about a certain music, the music itself that is a topic that is a digital content can also be transmitted to the other party.

[0003] However, such a situation poses a serious threat to a copyright holder who is in a position to produce contents. In other words, the copyright owner pays for producing the content that is a copyrighted work, and sells the content in order to collect it, and earns money. Despite the rights, digitalized content can be copied and distributed among users without permission.

In order to solve such a problem, copy control and prevention techniques have been proposed. For example, a recorder for copying music content recorded on a compact disc to a digital recording medium such as a mini disc has a mechanism for restricting or prohibiting dubbing from digital to another digital recording medium. In this way, we are trying to guarantee the rightful revenue of the copyright owner.

[0005]

However, the above-described conventional copy control and prevention techniques make it difficult for users to communicate with each other on the topic of content. This is because communication via the Internet exchanges digital data.
Such a situation is not pleasing to the user.

[0006] Many users are looking for techniques that improve their communication skills without violating copyright. Also, the copyright owner does not want to restrict communication between users without copyright infringement, but rather positively regards that sales promotion can be expected due to word-of-mouth effects etc. Seeking a guarantee of the price of

[0007] Conventionally, there is no method for seeking compensation for contents and at the same time preventing copyright infringement.

[0008] The present invention has been made in view of the above points, and provides a content providing method and apparatus, a content providing program, and a content that enable communication in which a topic is talked about at the same time and protect the right of a copyright owner to be paid. It is an object to provide a storage medium storing a provided program.

[0009]

FIG. 1 is a diagram for explaining the principle of the present invention.

According to the present invention (claim 1), in a content providing method for providing a content to a user, content advertisement information is acquired, and a content ID, information on a content acquisition destination included in the advertisement information, DCD describing information about the content and available services
(Step 1), and combines a request as service request information from a user, a system profile as information indicating a level of a function including a terminal, an operating system, and an application, a user policy and DCD as conditions for a service, and An RRDS is generated (step 2), and the location information of the service provider providing the service corresponding to the request included in the RRDS is acquired from the location information of the service provider held in advance (step 3), and the location information of the service provider is obtained. And the user terminal ID uniquely assigned to the user terminal and the information for the purchase settlement processing for the content to be purchased by the service provider are transmitted (step 4). Based on the requested, dark Obtaining the encrypted content data, and decrypting the encrypted content data using a decryption module in a tamper-resistant device having a tamper-resistant configuration having a configuration in which the content data in the user terminal cannot be falsified (step 5) The storage location information storing the decrypted content data and the DCD are recorded as a set in an index table (step 6), and when the DCD for reproducing the stored content data is input from the user. , With reference to the index table, the content data corresponding to the content ID that matches the content ID of the DCD is read and reproduced (step 7).
According to a second aspect of the present invention, in a content providing method for providing a content to a user, content advertisement information is acquired, and the content I included in the advertisement information is acquired.
D, obtaining a DCD describing information of a content acquisition destination, information about the content and available services,
Authentication is performed at the time of connection between a tamper-resistant memory device having a configuration in which the content data of the user terminal cannot be falsified and a tamper-resistant memory device connectable to the user terminal, and is service request information from the user. request,
A system profile which is information indicating a level of a function including a terminal, an operating system, and an application, a user policy which is a condition for a service, and a DC
D to generate an RRDS, obtain the location information of a service provider that provides a service corresponding to the request included in the RRDS from the location information of the service provider held in advance, and obtain the location information of the service provider based on the location information of the service provider. And information for the purchase and settlement processing for the content to be purchased by the service provider and the memory device ID uniquely assigned to the memory device, and the encrypted content requested from the service provider based on the memory device ID. Acquiring the data, decrypting the encrypted content data using a decryption module in a memory device connected to a tamper-resistant device having a configuration in which the content data in the user terminal cannot be tampered with, and decrypting the decrypted content. Storage location information where data is stored and D
When a user inputs a DCD for reproducing the stored content data by recording a set of CDs in the index table and referring to the index table in the memory device, the content corresponding to the content ID of the DCD is referred to. The content data corresponding to the ID is read and reproduced. FIG. 2 is a diagram illustrating the principle of the present invention.

The present invention (Claim 3) is a content providing apparatus for providing content to a user, comprising: a communication unit 10 for transmitting and receiving content data and data via a network; It has an interface means 20 for receiving input of DCD describing information about contents and available services and outputting reproduced content data to the user, a memory, and a data tamper resistant structure. A tamper device, and a DCD obtaining unit 30 that obtains the advertising information of the content and obtains the DCD that describes the content ID, the information of the obtaining destination of the content, the information related to the content, and the available services included in the advertising information. Service request input from the user via the interface means RRDS generation means 40 for generating an RRDS by combining a request which is a report, a system profile which is information indicating a function level including a terminal, an operating system, and an application, a user policy which is a condition for a service, and a DCD; RRD from location information of service provider
A provider location information acquisition unit 50 that acquires location information of a service provider that provides a service corresponding to a request based on S, and a purchase settlement process for content purchased by the service provider based on the location information of the service provider. Payment means 60 for transmitting the information and the user terminal ID uniquely assigned to the user terminal, and acquiring the encrypted content data requested from the service provider based on the user terminal ID, Decoding means 7 for decoding using a decoding module in the tamper device and storing the decoded content data
0, an index storage unit 80 for recording the storage position information storing the decrypted content data and the DCD as a set in an index table, and a DCD for reproducing the stored content data via an interface unit. And reproducing means 90 for reading the content data corresponding to the content ID that matches the content ID of the DCD and reproducing the content data by referring to the index table when input by the user.

[0012] The present invention (claim 4) is a content providing apparatus for providing content to a user, comprising: communication means for transmitting and receiving content data and data via a network; DC with information about available services
An interface means for receiving the input of D and outputting the reproduced content data to the user; a tamper-resistant device having a configuration in which data cannot be falsified; and a data tamper-resistant device which cannot be tampered with. And a memory device having the configuration described above, and acquires the advertisement information of the content, and acquires the DCD that describes the content ID, the information of the acquisition source of the content, the information on the content, and the available services included in the advertisement information. DCD
Acquiring means, an authentication means for performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal,
RRDS by combining a request as service request information input from a user through an interface means, a system profile as information indicating a level of a function including a terminal, an operating system, and an application, a user policy as a condition for a service, and a DCD.
RRDS generating means for generating a service provider that obtains service information that provides a service corresponding to a request based on the RRDS based on previously stored position information of a service provider; A settlement unit for transmitting information for purchase settlement processing for content purchased by the service provider and a memory device ID uniquely assigned to the memory device, based on the location information of the provider, and a memory device I
D. Obtain the encrypted content data requested from the service provider based on D, decrypt the content data using the decryption module in the memory device connected to the tamper-resistant device in the user terminal, and store the decrypted content data. Decoding means, an index storage means for recording the storage position information storing the decrypted content data and the DCD in an index table in the memory, and a DCD for reproducing the stored content data. When input from the user, the content ID corresponding to the content ID of the DCD is referred to by referring to the index table.
Reproducing means for reading out and reproducing the content data corresponding to D from the memory device.

[0013] The present invention (Claim 5) is a content providing program for providing content to a user. The content providing program acquires content advertising information, and includes a content ID and a content acquisition destination included in the advertising information. Information, a DCD acquisition process for acquiring a DCD describing information on the content and available services, an authentication process for performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal, RRDS by combining a request as service request information input from a user through an interface process, a system profile as information indicating a level of a function including a terminal, an operating system, and an application, a user policy as a condition for a service, and a DCD. RR that generates
A DS generation process, a provider location information acquisition process for acquiring service provider location information that provides a service corresponding to the request based on the RRDS from the service provider location information stored in advance, and a service provider location Based on the information, a payment process for transmitting information for purchase payment processing for content purchased by the service provider and a memory device ID uniquely assigned to the memory device, and a memory device ID
Obtains the encrypted content data requested from the service provider, decrypts the decrypted content data using the decryption module in the memory device connected to the tamper-resistant device in the user terminal, and stores the decrypted content data. A decoding process, an index storing process of recording the storage position information storing the decrypted content data and the DCD in an index table in the memory, and a DC for reproducing the stored content data.
When D is input by the user, the content data corresponding to the content ID that matches the content ID of the DCD is read from the memory device and played back by referring to the index table.

[0014] The present invention (claim 6) is a content providing program for providing content to a user, which acquires advertising information of a content, and includes a content ID and a content acquisition destination included in the advertising information. Information, a DCD acquisition process for acquiring a DCD describing information on the content and available services, an authentication process for performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal, RRDS by combining a request as service request information input from a user through an interface process, a system profile as information indicating a level of a function including a terminal, an operating system, and an application, a user policy as a condition for a service, and a DCD. RR that generates
A DS generation process, a provider location information acquisition process for acquiring service provider location information that provides a service corresponding to the request based on the RRDS from the service provider location information stored in advance, and a service provider location Based on the information, a payment process for transmitting information for purchase payment processing for content purchased by the service provider and a memory device ID uniquely assigned to the memory device, and a memory device ID
Obtains the encrypted content data requested from the service provider, decrypts the decrypted content data using the decryption module in the memory device connected to the tamper-resistant device in the user terminal, and stores the decrypted content data. A decoding process, an index storing process of recording the storage position information storing the decrypted content data and the DCD in an index table in the memory, and a DC for reproducing the stored content data.
When D is input by the user, the content data corresponding to the content ID that matches the content ID of the DCD is read from the memory device and played back by referring to the index table.

[0015] The present invention (claim 7) is a storage medium storing a content providing program for providing content to a user.
A DCD acquisition process for acquiring a content ID, information on a content acquisition source, information on the content, and available services included in the advertisement information, a memory device connected to a tamper-resistant device, and the user An authentication process for performing authentication at the time of connection with a terminal, and a request for service request information input from a user via an interface process, and a system profile for information indicating a function level including the terminal, the operating system, and an application. , Combining the user policy and DCD, which are the conditions for the service, and
An RRDS generation process for generating S, a provider location information obtaining process for obtaining, from the service provider location information stored in advance, a service provider that provides a service corresponding to the request based on the RRDS, Based on the location information of the service provider, a payment process for transmitting information for purchase and settlement processing for content purchased by the service provider and a memory device ID uniquely assigned to the memory device, and based on the memory device ID. A decryption process of acquiring the requested content data from the service provider, decrypting the content data using a decryption module in a memory device connected to the tamper-resistant device in the user terminal, and storing the decrypted content data; The decrypted content data is stored An index storage process of recording storage position information and DCD as a set in an index table in the memory, and when a user inputs a DCD for reproducing stored content data, the index table is referred to. DCD content ID
And reproducing the content data corresponding to the content ID corresponding to the content ID from the memory device and reproducing the content data.

[0016] The present invention (claim 8) is a storage medium storing a content providing program for providing content to a user.
A DCD acquisition process for acquiring a content ID, information on a content acquisition source, information on the content, and available services included in the advertisement information, a memory device connected to a tamper-resistant device, and the user An authentication process for performing authentication at the time of connection with a terminal, and a request for service request information input from a user via an interface process, and a system profile for information indicating a function level including the terminal, the operating system, and an application. , Combining the user policy and DCD, which are the conditions for the service, and
An RRDS generation process for generating S, a provider location information obtaining process for obtaining, from the service provider location information stored in advance, a service provider that provides a service corresponding to the request based on the RRDS, Based on the location information of the service provider, a payment process for transmitting information for purchase and settlement processing for content purchased by the service provider and a memory device ID uniquely assigned to the memory device, and based on the memory device ID. A decryption process of acquiring the requested content data from the service provider, decrypting the content data using a decryption module in a memory device connected to the tamper-resistant device in the user terminal, and storing the decrypted content data; The decrypted content data is stored An index storage process of recording storage position information and DCD as a set in an index table in the memory, and when a user inputs a DCD for reproducing stored content data, the index table is referred to. DCD content ID
And reproducing the content data corresponding to the content ID corresponding to the content ID from the memory device and reproducing the content data.

As described above, according to the present invention, the user can use the DCD
Communication using the content as a topic can be performed using information representing the content. Also,
You can purchase content and data directly from the DCD,
It can also be played back, and the DCD functions as a convenient symbol representing the content.

Further, the content data purchased by using the DCD is transmitted after being encrypted, and is stored in the IC in the user terminal.
It can be decrypted only by a module in a tamper-resistant device such as a card. This makes it impossible to directly view the content data, and makes it impossible to infringe the copyright owner's right to pay for the content, such as illegal copying.

Furthermore, if content data is recorded in a memory device that is portable and can be connected to various terminals, the content data purchased by the user can be reproduced and used on various terminals, thereby improving convenience. I do.

Further, the content data in the memory device owned by the user can be reproduced on the terminal of another user, which is useful not only for communication on a network but also for conventional face-to-face communication.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the following description, terms used in the following description will be explained.

The "contents" include, for example, a certain song (not a technical meaning such as a data format) such as "song xx", "TV drama △△", "game xx". Refers to individual literary works, such as TV dramas and certain games, that are specified in an interval.

"Content data" is data obtained by encoding content so that it can be handled on a computer.
More specifically, codes such as “song XX encoded by PCM”, “TV drama △△ encoded by MPEG2”, and “game program XX that runs on a specific game machine” Information.

The "content ID" indicates a number that uniquely indicates the content.

"Service" refers to a function of processing performed on content data. Specifically, it refers to individual functions such as content delivery and format conversion.

The “service provider” refers to a server that provides a service.

The "content information" is a set of content data itself of a certain content, various information related to the content, service information that can be provided for the content, and the like.

The "content information DB" is a database in which content data of various file formats and encoding formats for each content, various information related to the content, descriptions of provided services, and the like are stored.

"Request" is service request information presented by a user, and is described in a service description method. Specifically, it is "want to see" or "want to listen".

The “user policy” is information indicating a condition specified by the user to restrict the service. For example, charge conditions and location conditions, specifically, "service can be provided at a charge of XX yen or less", "domestic service provider only", "payment method using no credit card" And so on.

An “application” is software or hardware that runs on a user terminal and is used to receive a service, or both.

The "system profile" is information indicating the level of a function of a terminal, an operating system, an application, or the like. For example, the type of the user terminal, communication speed, processing speed, display function, operating system, registered application information, and the like.

"DCD (distributed content descriptor)
r: distribution content identifier)] is data including a content ID, a set of service descriptors representing services for the content specified by the content ID (this is called service list information), and a subset of attribute information. .

First, a content providing system on which the present invention is based will be described.

FIG. 3 shows an outline of a configuration of a content providing system which is a premise in one embodiment of the present invention.

The content providing system shown in FIG.
It is composed of a content-related information providing device 100 which is a server to which RDS is input, a user terminal 200, and a service provider 300.

The user terminal 200 is used for inputting manually by a user or downloading from the WWW (World Wide Web).
Suppose there is some form of acquired DCD. A user who wants to deliver content data represented by a content ID described in the DCD inputs the request as a request.

The DCD handler 230 is connected to the user terminal 20
This is a mechanism that operates on 0, and receives DCD and a request as inputs. The DCD handler 230 has a user policy and a system profile. The DCD handler 230 generates an RRDS by combining a DCD, a request, a user policy, and a system profile, and transmits the RRDS to the content-related information providing apparatus 100.

The content-related information providing apparatus 100 has an attribute information database 110 and a service provider information database 120. The content-related information providing apparatus 100 searches the attribute information database 110 for attribute information of the content corresponding to the DCD in the RRDS,
The service provider information that is the delivery source of the content data is obtained. Further, a service provider that satisfies the conditions described in the content attribute information, the request (content distribution request) information in the RRDS, the user policy, and the system profile is selected. The selected service provider information and the attribute information of the content are transmitted to the user terminal 200 as a resolve result. User terminal 20
When the DCD handler 230 of 0 acquires the resolve result including the service provider information and the attribute information of the content from the content-related information providing apparatus 100, the DCD handler 230 presents the resolve result to the user. The DCD handler 230
Waiting for an input from the user, the same processing is performed again in response thereto, and the content-related information providing apparatus 100 is inquired of information. Alternatively, when the service provider 300 is uniquely specified, the application corresponding to the service provider 300 is activated, and necessary information such as content attribute information is passed to the application.

The application makes a service request to the service provider 300 specified above,
The service provider 300 distributes content data to an application in response to a service request. This allows the user to receive the content data from the service provider through the application.

FIG. 4 is a sequence chart showing an outline of the operation of the content providing system which is a premise in one embodiment of the present invention.

Step 101) The user terminal 200
Accept input of DCD and request from user. Note that DCD can be obtained by downloading from the WWW or the like besides the user.

Step 102) D of the user terminal 200
The RRDS is set by the CD handler 230 by combining the DCD, the request, the user policy, and the system profile.
Generate

Step 103) DCD handler 230
RRDS generated by the content-related information providing device 1
Send to 00.

Step 104) The content-related information providing apparatus 100 searches the attribute information database 110 for individual attribute information corresponding to the DCD in the RRDS, acquires the service provider information of the delivery source of the content data, and issues a content distribution request. A service provider that satisfies the conditions described in the information and the user policy and the system profile is searched.

Step 105) The result of the search together with the content attribute information is obtained as a resolve result by the user terminal 20.
Send to 0.

Step 106) The user terminal 200 presents the result of the resolve to the user, and when receiving the DCD or the request from the user again, performs the same processing as the processing from the above-mentioned step 101. If the service provider is uniquely determined in step 104, the application corresponding to the service provider is started.
Step 107) In the application on the user terminal 200, the specified service provider 30
A service request is issued for 0.

Step 108) Service provider 3
00 transmits the content data corresponding to the service request to the user terminal 200.

Thus, the user terminal 200 can present the content data to the user.

[First Embodiment] FIG. 5 shows a system configuration according to the first embodiment of the present invention.

The system shown in FIG.
0, service provider 3 that provides contents
00, there is a content-related information providing device 100 that stores attribute information about the content, and a user terminal 200.

FIG. 6 shows a configuration of a user terminal according to the first embodiment of the present invention.

The user terminal 200 shown in FIG. 5 includes a tamper-resistant device 210, a local resolver 220 for receiving a request for introducing attribute information on DCD from a user, a DCD handler 230 for handling DCD, and a communication processing unit 240 for performing communication processing. Consists of The tamper-resistant device 210 is assumed to be an IC card (having logic hidden in a chip) having a structure in which it is difficult to analyze internal logic and data.

The tamper-resistant device 210 is connected to the user terminal 2.
00, an external interface 211 for exchanging data with components other than the tamper-resistant device 210, and controlling to convert the data into a data format usable by the tamper-resistant device 210, and a memory device 212 for storing content data. , A content data reproducer 213 for reproducing the content, and a decryption module 214 for decrypting the encrypted content data. Further, the tamper-resistant device 210 holds a user terminal ID for uniquely identifying the user terminal 200.

The outline of the operation of the above system will be described below.

FIG. 7 is a sequence chart showing an outline of the operation in the first embodiment of the present invention.

Step 201) The service provider 300 that provides the content sends the attribute information on the content to be provided to the content-related information providing apparatus 1.
Register at 00.

Step 202) The content-related information providing apparatus 100 issues an identifier uniquely indicating a content called a content ID, and at the same time, creates data called a DCD in which the content ID is a part of attribute information.
This is transmitted to the service provider 300.

Step 203) The service provider 300 distributes the advertisement information of the content through various media such as magazines, newspapers, radios, televisions, and WWW (World Wide Web). At this time, the content is advertised by adding the DCD to the advertisement information.

Step 204) The user obtains the DCD based on the advertisement information of the content. The obtained D
By operating the CD with the DCD handler 230, it is possible to know the attribute information of the content and to receive services related to the content.

Step 205) When the user purchases the content data of the content indicated by the DCD, a purchase request is input to the DCD handler 230 together with the DCD. As a result, the DCD handler 230
D, request, system profile, and user policy are combined to generate data called RRDS.

Step 206) DCD handler 230
Sends the RRDS to the local resolver 220.

Step 207) Local resolver 22
0 (in some cases, the content-related information providing device 10 on the network 400 via the communication processing unit 240).
0), and obtains the location information on the network of the service provider 300 that sells the content,
This is returned to the DCD handler 230.

Step 208) DCD handler 230
Then (in some cases, accompanied by a user's operation), a purchase settlement process is performed with the service provider 300. At this time, the DCD handler 230 reads the user terminal ID via the external interface unit 211 of the tamper resistant device 210 and sends it to the service provider 300.

Step 209) Service Provider 3
No. 00 encrypts the content data so that it can be correctly decrypted only in the tamper-resistant device 210 of the user terminal 200 obtained by the purchase settlement processing with the user terminal 200.

Step 210) Service Provider 3
No. 00 transmits the encrypted content data to the user terminal 200 that has performed the purchase settlement processing.

Step 211) The user terminal 200
The encrypted content data is sent through the external interface 211 to the decryption module 214 in the tamper-resistant device, and the decrypted module 214 decrypts the encrypted content data.

Step 212) The decrypted content data is recorded in the memory device 212. At this time, index information indicating in which location in the memory device 212 the content data is stored is paired with the DCD and recorded in the index table in the memory device 212.

Step 213) Here, when the user wants to play back the purchased content data, he inputs a playback request to the DCD handler 230, and the DCD handler 230 sends the RRDS to the local resolver 220. As a result, the local resolver 220 checks via the external interface 211 whether index information corresponding to the content ID described in the DCD exists in the index table in the memory device 212. The index information is returned to the DCD handler 230. The DCD handler 230 sends the index information to the content reproducer 213, and requests the reproduction of the content data. As a result, the content player 213 uses the memory device 21 based on the index information.
2 is read out and reproduced.

[Second Embodiment] FIG. 8 shows a configuration of a user terminal according to a second embodiment of the present invention. 6, the same parts as those of FIG. 6 are denoted by the same reference numerals, and the description thereof will be omitted.

The user terminal 200 includes a DCD handler 230 for operating the DCD and a local resolver 2 for receiving a request for introducing attribute information for the DCD from the user.
20, a communication processing unit 240 that performs communication processing, and a tamper-resistant device 210.

The tamper-resistant device 210 exchanges data between the tamper-resistant device 210 and components in the user terminal 200 excluding the tamper-resistant device 210, and performs input and output. There is an external interface 211 that performs control to convert the converted data into a format usable by the tamper-resistant device 210,
A removable memory device 215 is connected to the tamper-resistant device. Further, the memory device 215 itself is tamper-resistant hardware that does not allow data tampering, and can be connected to another type of user terminal or another user's user terminal. It has a memory device ID that uniquely identifies the memory device.

FIG. 9 is a sequence chart showing an outline of the operation according to the second embodiment of the present invention.

Step 301) The service provider 300 that provides the content sends the attribute information on the content to be provided to the content-related information providing apparatus 1.
Register at 00.

Step 302) The content-related information providing apparatus 100 issues an identifier uniquely indicating a content called a content ID, and at the same time creates data called a DCD with the content ID as a part of attribute information.
This is transmitted to the service provider 300.

Step 303) Service provider 3
00 is for advertising the contents of magazines, newspapers, radio,
It is distributed on various media such as TV and WWW (World Wide Web). At this time, the content is advertised by adding the DCD to the advertisement information.

Step 304) The user obtains the DCD based on the advertisement information of the content. The obtained D
By operating the CD with the DCD handler 230, it is possible to know the attribute information of the content and to receive services related to the content.

Step 305) When the user purchases the content data of the content indicated by the DCD, a purchase request is input to the DCD handler 230 together with the DCD. As a result, the DCD handler 230
D, request, system profile, and user policy are combined to generate data called RRDS.

Step 306) DCD handler 230
Sends the RRDS to the local resolver 220.

Step 307) Local resolver 22
0 (in some cases, the content-related information providing device 10 on the network 400 via the communication processing unit 240).
0), and obtains the location information on the network of the service provider 300 that sells the content,
This is returned to the DCD handler 230.

Step 308) DCD handler 230
Then (in some cases accompanied by a user's operation), the memory device ID is read via the external interface unit 211 of the tamper-resistant device 210 and sent to the service provider 300 together with the content ID. Perform purchase settlement processing.

Step 309) Service provider 3
No. 00 encrypts the content data so that it cannot be correctly decrypted unless the memory device ID in the tamper-resistant device 210 of the user terminal 200 obtained by the purchase settlement processing with the user terminal 200 is used. Step 310) The service provider 300 transmits the encrypted content data to the user terminal 200 that has performed the purchase settlement processing.

Step 311) The user terminal 200
The decryption module 2 in the tamper-resistant device 210 converts the encrypted content data through the external interface 211.
14 and decrypts the encrypted content data by the decryption module 214.

Step 312) The decrypted content data is recorded in the memory device 212. At this time, index information indicating in which location in the memory device 212 the content data is stored is paired with the DCD and recorded in the index table in the memory device 212.

Step 313) Here, when the user wants to reproduce the purchased content data, he inputs a reproduction request to the DCD handler 230, and the DCD handler 230 sends the RRDS to the local resolver 220. This allows the local resolver 220 to determine, via the external interface 211, whether index information corresponding to the content ID described in the DCD exists in the index table in the memory device 212 connected to the tamper-resistant device 210. It checks and returns the index information to the DCD handler 230 if it exists. D
The CD handler 230 sends the index information to the content reproducer 213, and requests the reproduction of the content data. As a result, the content reproducing device 213 reads out the content data from the memory device 212 based on the index information and reproduces the content data.

Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] First, a content providing system of the present embodiment will be described with reference to FIG.

The content providing system according to the present embodiment includes a user terminal 200 operated by a user, a service provider 300 operated by a content provider, and a database of attribute information on the content, which are connected to a network 400. The content-related information providing apparatus 100 assigns a content ID, which is a unique identifier, to the content.

FIG. 10 is a diagram for explaining content attribute registration, content ID issuance, and DCD issuance according to the first embodiment of this invention.

The service provider 300 provides attribute information on the content to be provided (including information such as the content name, type, author name, price, and sales location).
To the content-related information providing apparatus 100 to request registration of attribute information.

The content-related information providing apparatus 100 issues a content ID, which is information for uniquely identifying the content, in response to the request, and sets the content ID and the transmitted attribute information as a set. The information is registered in the attribute information database 110 in the apparatus 100.

Next, information called DCD, which is a part of the content ID and the attribute information, is issued and returned to the service provider 300.

FIG. 11 is a diagram for explaining a method of advertising content according to the first embodiment of the present invention.

The service provider 300 which has obtained the DCD of the content provided by itself transmits the advertisement information of the content by various media such as a magazine, a newspaper, a television, a street poster, and WWW. At this time, DCD is attached to the advertisement. As a method of attaching DCD, which is digital information, to analog media such as a poster, a method using a digital watermark technique, a barcode, or the like is used. The user terminal uses the D distributed in this manner together with the advertising information.
A CD is acquired and stored in the storage means.

Here, a method of embedding a digital watermark using a digital watermark technique will be described with reference to FIG.

In the case of a document as shown in FIG. 12, the ID of the digital watermark as shown in FIG.
Is embedded in a portion corresponding to “Table A”, and a digital watermark indicating the ID of “Table A” is embedded in the portion corresponding to the image in “FIG. A”. An electronic watermark is embedded.

When the user terminal 200 obtains the document data in which the digital watermark is embedded as described above, the digital watermark is read and the attribute information (DCD) is obtained. The user who has acquired the document data reads the document data as an image using an input device constituting image reading means such as a digital camera, a video camera, a scanner, etc., and converts the data from analog data to digital data. Then, the digital data converted document data is subjected to a digital watermark reading process to read a digital watermark (DCD) embedded in the document, and to extract each DCD embedded in the above document or chart. I do.

Next, the user terminal 2 will be described with reference to FIG.
00 will be described.

The user terminal 200 includes a DCD handler 230 for operating the DCD and a local resolver 220 for receiving a request for introducing attribute information related to the DCD from the user.
And a communication processing unit 240 that performs communication processing, and a tamper-resistant device having tamper resistance (for example, Mori.r .: “Protected M”).
odule "(IEICE Symposium on Cryptography and Information Security, SCIS90-6B, pp.1-10 (1990)) 2
It consists of ten.

The tamper-resistant device 210 exchanges data with a content player 213 for reproducing content data and with other components in the user terminal 200 other than the tamper-resistant device 210. There is an external interface 211 for controlling the conversion to a usable data format, and the tamper-resistant device 210 includes
It has a user ID that uniquely identifies the user terminal. Further, it has a decryption module 214 for decrypting the encrypted data.

The tamper-resistant device 210 has a structure such that information and mechanisms in the tamper-resistant device 210 cannot be accessed from the outside. Interface 211
Done through.

The operation of the above configuration will be described below.

When a user obtains information and services related to content from the obtained DCD, the DCD
A request indicating what information / service is desired to be obtained from the DCD is input to the DCD handler 230.

The DCD handler 230 includes information such as a system profile indicating the specifications of the user terminal 200 and information called a user policy which is information such as a priority specified by the user in advance.
D, a request is paired to create RRDS information, which is sent to the local resolver 220.

The local resolver 220 has an attribute information database (not shown) related to the content, similarly to the content-related information providing apparatus 100.
If there is information that matches the request specified by the RDS, this is returned to the DCD handler 230. Also, the user terminal 20
0 is connected to the network 400, the RRDS is transmitted to the content-related information providing apparatus 100 via the communication processing unit 240 via the network 400, and a request is made to search for information corresponding to the request. In addition, information that satisfies the user's request can be searched cooperatively among more content-related devices. The following method has been proposed as a method for that. The user has the content ID: nk. x. In order to request some service based on the DCD including m, the DCD and the request
Send to CD handler 230. The DCD handler 230
First, the local resolver 250 checks whether there is attribute information corresponding to the content ID, and sends the RRDS to the content-related information providing apparatus 100.

The content-related information providing apparatus that has received the RRDS sends the RRDS to another content-related information providing apparatus 100, and finally, the RRDS reaches the nk-th content-related information providing apparatus 100. Nk
The content-related information providing device has a content ID
And tries to connect to the user terminal 200 having the x-th local resolver. If the nk-th and x-th local resolvers 25 of the content-related information providing device
If the user terminal 200 having 0 cannot communicate, a resolve result indicating that the user terminal 200 cannot be resolved is returned. When the user terminal 200 having the nk-th content-related information providing device and the x-th local resolver 250 can communicate, the nk-th content-related information providing device is RR
Send DS to the xth local resolver. Since the x-th local resolver has attribute information corresponding to a plurality of content IDs, the resolver generates a resolve result based on the attribute information, and finally generates the resolve result by the DC that first generates the RRDS.
Return to D handler 230.

The information or the result of the resolve that matches the request is sent to the DCD handler 230 and presented to the user.

Thus, the user can obtain the work name of the content, the author name, the type of the content (moving image, music, still image, game, etc.), the genre (rock, enka, etc.), the performer, the performer, the original creator, etc. It is possible to obtain and enjoy a great deal of information such as viewing services, related contents (for music, a television program with the theme song), and the like. In other words, it functions as one symbol representing content. Therefore, communication regarding contents can be performed between users using the DCD. Then, by operating the DCD, purchase and reproduction of the content data can also be performed.

Next, the purchase settlement processing of the content data will be described.

FIG. 13 is a diagram for explaining the settlement processing of the content data according to the first embodiment of the present invention.

The service provider 300 that sells contents by the above-described procedure for acquiring information from the DCD.
After the location of the service provider 300 is determined, the DCD handler 230 performs purchase settlement processing with the service provider 300 via the communication processing unit 240 and the network 400.

Next, transmission and reception of user terminal ID information in the content purchase settlement processing will be described.

FIG. 14 is a diagram showing transmission and reception of user terminal ID information during content purchase settlement processing according to the first embodiment of the present invention.

The DCD handler 230 reads the user terminal ID held in the tamper-resistant device 210 via the external interface 211 during the purchase settlement processing with the service provider 300, and communicates this with the communication processing. The data is transmitted to the service provider 300 via the unit 240.

Next, the content encryption processing in the service provider 300 will be described.

FIG. 15 is a diagram showing a procedure for encrypting content data by the service provider according to the first embodiment of the present invention. FIG. 2A shows a method of acquiring a corresponding public key from a user terminal ID sent from the user terminal 200, and FIG. 2B shows a method of encrypting content data using the public key. Is shown.

The service provider 300 encrypts the content data so that the content data can be eavesdropped on the communication channel and can be correctly decrypted only by the user terminal 200 of the purchased user. Various methods are conceivable as encryption methods. For example, as shown in FIG. 2A, the tamper-resistant device 210 holds a secret key in a public key cryptosystem in the memory device 212, and stores the corresponding public key in the memory device 212. The key is a PIK (Public Ke) that can be obtained by anyone using the user terminal ID.
If there is an environment in (y Infrastructure), a corresponding public key is obtained from the user terminal ID sent from the service provider 300, and the content data is encrypted using this.

As shown in FIG. 13B, there is a method of acquiring content data and a public key and encrypting the content data.

Next, a method of receiving encrypted content data at user terminal 200 will be described.

FIG. 16 is a diagram showing an operation of receiving encrypted content according to the first embodiment of the present invention. The content data purchased by the purchase settlement processing is encrypted by the service provider 300 as described above and sent to the user terminal 200. The user terminal 200 receives the encrypted content data at the communication processing unit 240 and sends the encrypted content data to the decryption module 214 in the tamper-resistant device 210 via the external interface 211. At this time, at the same time, the DCD corresponding to the purchased content is also
0 is transmitted to the decryption module 214 of the tamper-resistant device 210. Decryption module 214 of tamper resistant device 210
Decrypts the data with the encrypted content using its own private key held in the memory interior 212, obtains the content data, and records this in the memory device 212.

Here, the memory device 212 will be described.

FIG. 17 shows the configuration of the memory device according to the first embodiment of the present invention. The look-up device 212 shown in FIG. 3 includes a data area 217 for recording actual data, and an index information table 216 which is a database of index information indicating correspondence between which data is in which location on the data area 217. You. The content data decoded by the above reception procedure is recorded at a certain location on the data area 217, and the memory device 212 creates index information by combining the given DCD and the recording location of the content data. Is added to the index information table 216.

Next, the procedure for reproducing the content data purchased by the user will be described.

FIG. 18 is a diagram showing a process of reproducing content data according to the first embodiment of the present invention.

The user specifies the content data to be reproduced using the DCD, and inputs the content data to the DCD handler 230 together with a reproduction request indicating a reproduction request.

The DCD handler 230 generates an RRDS and sends it to the local resolver 220.

The local resolver 220 can refer to the index information table 216 of the memory device 212 via the external interface 211, and
DCD including content ID in DCD included in S
Is found in the index information table 216 to obtain information on the recording location of the content data corresponding to the DCD.

The local resolver 220 transmits the index information obtained by the search to the DCD handler 230
Send to

The DCD handler 230 sends the index information to the content reproduction device 213 of the tamper-resistant device 210 via the external interface 211, and requests the reproduction of the content data.

The content reproducing device 213 reads out content data from the memory device 212 based on the index information, reproduces the content data, and outputs the reproduced content to the outside.

Lastly, an example of communication regarding contents using DCD will be described. FIG. 19 is a diagram illustrating an example of DCD sharing according to the first embodiment of this invention.

When communication is performed between users by using e-mail, WWW, bulletin board, chat, or the like with the content as a topic, the DCD representing the content is transmitted and received instead of the content data.

As described above, according to the present embodiment, when purchasing a content, the user uses the DCD obtained in advance from the declaration regarding the content to determine what kind of content it is. You can know from the side.

[0133] The purchased content is encrypted so that it cannot be reproduced by anyone other than the purchaser, so that the problem of unauthorized copying can be solved.

[0134] Further, with regard to communication between users as a topic of content, the DCD describes various attribute information and information on services related to the content, and there are many communications that can be established only with such information. I do. For example, in a case where “a topic of a television program watched yesterday is shared between friends”, communication is established even if the television program cannot be watched on the spot. At this time, it is more convenient if various information regarding the content is obtained from DCD which is a symbol representing the content. In addition, the DCD for sharing a topic functions as a common interface for various operations related to the content, such as advertising the content, purchasing the content, and reproducing the content, and is highly convenient. DCD
Copying and distribution of the content itself is free, and it can be used for communication between users.Since it is possible to realize protection of unauthorized use of content data when actually viewing content, service providers who secure compensation revenue have In addition to the problems it has, it has the secondary effect of improving the content advertising effect of word-of-mouth, and also has benefits for both users in terms of the convenience of content operation and the expansion of communication means.

[Second Embodiment] This embodiment is the same as the above-described first embodiment, except for the following points.

In this embodiment, the memory device of the anti-tamper device 210 in the user terminal 200 is different from that of the first embodiment.

First, the configuration of the user terminal 200 will be described with reference to FIG.

The user terminal 200 includes a DCD handler 230 for operating the DCD, and a local resolver 220 for receiving a request for introducing attribute information related to the DCD from the user.
And a communication processing unit 240 that performs communication processing, and a tamper-resistant device 210.

The tamper-resistant device 210 includes a content player 213 for playing back content data and an external interface 211 for controlling exchange with the outside of the tamper-resistant device 210, and can be connected to the tamper-resistant device 210. A removable memory device 215.

FIG. 20 shows the configuration of the memory device according to the second embodiment of the present invention.

The memory layer 215 shown in the figure has a data area 222 for recording actual data and an index information table 221 which is a database of index information indicating the correspondence between which data is in which location on the data area 222. And a memory device interface 223 for controlling communication with the outside of the memory device 215. Also, a memory device ID for uniquely identifying the memory device
Inside.

The memory device 215 itself is hardware (for example, an IC card) having a function of making data falsification impossible, and can be connected to another user terminal or a user terminal of another user. It is.

The encrypted content data is decrypted in the memory device 215 connected to the tamper-resistant device 210 via the external interface 211, and is recorded in a location on the data area 222. The memory device 215
DC given at the same time as encrypted content data
D and the recording location of the content data are paired to create index information, which is stored in the index information table 2
Add to 21.

Next, the tamper-resistant device 210 and the memory device 2
The connection of No. 15 will be described.

FIG. 21 shows the connection between the tamper-resistant device and the memory device according to the second embodiment of the present invention. Tamper resistant device 210
When the device and the memory device 215 are physically connected to each other, first, mutual authentication between devices is performed, a device having a terminal ID registered in advance with each other, and a function of making data falsification impossible. By judging whether or not the device has the correct tamper-resistant device and memory device, the device is authenticated. After the authentication is completed, the memory device 215 refers to internal information such as content data held in the memory device 215 via the memory device interface 223 in response to a request from the tamper-resistant device 210, or The free area in the memory device 215 is checked, and when the authentication is performed by the mutual authentication, the data writing is permitted.

Next, transmission and reception of memory device ID information during content purchase processing will be described.

FIG. 22 shows the transfer of the memory device D during the content purchase settlement processing according to the second embodiment of the present invention.

[0148] The DCD handler 230 executes the tamper-resistant device 2 during the purchase settlement processing with the service provider 300.
The memory device ID stored in the memory device 215 connected to the device 10 is read via the external interface 211 and the memory device interface, and is sent to the service provider 300 via the communication processing unit 240.

Next, the encryption processing by the service provider 300 will be described.

FIG. 23 shows a procedure for encrypting content data by a service provider according to the second embodiment of the present invention. FIG. 2A shows a method of obtaining a corresponding public key from a memory device ID sent from a user terminal, and FIG. 2B shows a method of encrypting content data using a public key. Show.

The service provider 300 encrypts the content data so that the content data can be eavesdropped on the communication channel and correctly decrypted only in the memory device 215 connected to the user terminal 200 of the purchased user. As a method for this, various methods can be considered. For example, as shown in FIG.
5 stores a private key in the public key cryptosystem inside, and transmits a corresponding public key from the service provider 300 if there is an environment in a PKI (Public Key Infrastructure) that can be obtained by anyone using the memory device ID. A corresponding public key is obtained from the obtained memory device ID, and the content data is encrypted using this.

There is also a method of acquiring content data and a public key and encrypting the content data, as shown in FIG.

Next, reception of encrypted content data at user terminal 200 will be described.

FIG. 24 is a diagram showing reception of encrypted content in the user terminal according to the second embodiment of the present invention.

The content data purchased by the purchase settlement processing is encrypted by the service provider 300 as described above and sent to the user terminal 200.

The user terminal 200 receives the encrypted content data at the communication processing section 240 and sends it to the tamper-resistant device 210 via the external interface 211. At this time, the DCD corresponding to the purchased content is also
It is sent from the DCD handler 230 to the tamper resistant device 210. The tamper-resistant device 210 transmits the above two pieces of information to the memory device 215 via the memory device interface 223.
Send in. The memory device 215 decrypts the encrypted content data using its own private key held therein,
Content data is obtained and recorded in the data area 222. At this time, as described above, index information is created by combining the DCD provided simultaneously with the encrypted content data and the recording location of the content data, and this is added to the index information table 221.

Next, the procedure for reproducing the content data purchased by the user will be described.

FIG. 25 is a diagram showing reproduction of content data according to the second embodiment of the present invention. The user specifies content data to be reproduced using DCD, and inputs the data to the DCD handler 230 together with a reproduction request indicating a reproduction request.

The DCD handler 230 generates an RRDS and sends it to the local resolver 220.

The local resolver 220 refers to the index information table 221 of the memory device 215 via the external interface 211 and the memory device interface 223 of the memory device 215, and determines whether the DCD including the content ID in the DCD included in the RRDS is It is searched whether it exists in the index information table 221 and the DCD
Of the recording location of the content data corresponding to.

The local resolver 220 converts the index information obtained by the search into the DCD handler 230
Send to

The DCD handler 230 sends the index information to the content reproducing device 213 in the tamper-resistant device 210 via the external interface 211, and requests the reproduction of the content data.

The content player 213 issues a read request for content data via the memory device interface 223 based on the index information.

The memory device permits reading of content data in response to a read request from the content data reproducing device 213 in the tamper-resistant device 210 that has been correctly authenticated.

The content data reproducing device 213 reads out content data from the memory device 215, reproduces the content data, and reproduces and outputs it to the outside.

As described above, according to this embodiment, in addition to the effects achieved in the first embodiment, the content data can be recorded in a memory device which is portable and can be connected to various terminals. Thereby, the content data purchased by the user can be reproduced and used on various terminals, and the convenience is improved.

Also, the reproduction of the content data in the memory device owned by another user on the terminal of another user can be performed while preventing unauthorized copying. Content sharing as a topic at the time of communication becomes possible, and in particular, user convenience is improved as compared with a conventional mimic content providing system aiming only at copy control.

It is also possible to construct the function of the user terminal in the above description as a program and install it in the CPU of the computer used as the user terminal, or distribute the program via a network.

Further, the constructed program can be transferred to a hard disk, a floppy (registered trademark) disk, a CD-R
The present invention can be easily realized by storing it in a portable storage medium such as OM and installing it when implementing the present invention.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the scope of the claims.

[0171]

As described above, according to the present invention, communication between users who are talking about content is made possible by using DCD consisting of content ID and attribute information.

Further, the content data purchased by the user using the DCD is encrypted and decrypted by tamper-resistant hardware (such as an IC card), thereby protecting the copyright and protecting the copyright of the content. It protects the author's right to compensation.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the principle of the present invention.

FIG. 2 is a principle configuration diagram of the present invention.

FIG. 3 is a configuration diagram of a content providing system serving as a premise in one embodiment of the present invention.

FIG. 4 is a sequence chart showing an outline of an operation of a content providing system which is a premise in one embodiment of the present invention.

FIG. 5 is a system configuration diagram according to an embodiment of the present invention.

FIG. 6 is a configuration diagram of a user terminal according to the first embodiment of the present invention.

FIG. 7 is a sequence chart showing an outline of an operation according to the first embodiment of the present invention.

FIG. 8 is a configuration diagram of a user terminal according to the second embodiment of the present invention.

FIG. 9 is a sequence chart showing an outline of an operation according to the second embodiment of the present invention.

FIG. 10 is a diagram for explaining content attribute information, content ID issuance, and DCD issuance according to the first embodiment of this invention.

FIG. 11 is a diagram for explaining a content advertising method according to the first embodiment of the present invention.

FIG. 12 is a diagram illustrating a digital watermark embedding technique according to the first embodiment of the present invention.

FIG. 13 is a diagram for explaining a settlement process of content data according to the first embodiment of the present invention.

FIG. 14 is a diagram showing exchange of user terminal ID information in a content purchase / payment process according to the first embodiment of the present invention.

FIG. 15 is a diagram illustrating a content data encryption processing procedure by a service provider according to the first embodiment of this invention.

FIG. 16 is a diagram illustrating an operation of receiving encrypted content according to the first embodiment of this invention.

FIG. 17 is a configuration diagram of a memory device according to the first embodiment of the present invention.

FIG. 18 is a diagram illustrating a process of reproducing content data according to the first embodiment of this invention.

FIG. 19 is a diagram illustrating an example of DCD sharing according to the first embodiment of this invention.

FIG. 20 is a configuration diagram of a memory device according to a second embodiment of the present invention.

FIG. 21 is a diagram showing a connection between a tamper-resistant device and a memory device according to a second embodiment of the present invention.

FIG. 22 is a diagram illustrating transfer of a memory device ID during content purchase settlement processing according to the second embodiment of this invention.

FIG. 23 is a diagram illustrating a content data encryption processing procedure performed by a service provider according to the second embodiment of this invention.

FIG. 24 is a diagram illustrating reception of encrypted content in a user terminal according to the second embodiment of this invention.

FIG. 25 is a diagram showing reproduction of content data according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Communication means 15 Memory 20 Interface means 30 DCD acquisition means 40 RRDS generation means 50 Provider location information acquisition means 60 Settlement means 70 Decoding means 80 Index storage means 90 Reproduction means 100 Content related information providing device 110 Attribute information database 120 Service provider information database 200 User Terminal 210 Tamper Resistant Device 211 External Interface 212 Memory Device 213 Content Data Reproducer 214 Decoding Module 215 Memory Device 216 Index Information Table 217 Data Area 220 Local Resolver 221 Index Information Table 222 Data Area 223 Memory Device Interface 230 DCD Handler 240 Communication Processing unit 300 Service provider 310 Service 20 content data 400 network

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06F 17/60 142 G06F 17/60 142 5J104 302 302E 502 502 G06K 19/10 H04N 7/173 640A H04L 9 / 10 G06K 19/00 R 9/32 H04L 9/00 621A H04N 7/173 640 673B F term (reference) 5B017 AA07 BA07 CA16 5B035 AA13 BB09 BC00 CA11 CA38 5B075 KK43 KK54 KK63 NK10 NK46 PQ05 5B082 BC01 BC11 BC02 BC22 BD02 BD08 BD14 5J104 AA07 AA13 AA14 AA15 AA16 EA04 KA02 NA35 NA36 NA37 NA42 PA10

Claims (8)

[Claims] 1. A content providing method for providing content to a user, comprising the steps of: acquiring advertisement information of the content, and including, in the advertisement information, a content ID, information of an acquisition source of the content, information and use of the content. A DCD that describes possible services is obtained, and a request that is service request information from a user, a system profile that is information indicating a function level including a terminal, an operating system, and an application,
User policy and DC that are conditions for service
D to generate an RRDS, obtain from a previously stored location information of the service provider location information of a service provider that provides a service corresponding to the request included in the RRDS, and obtain the location information of the service provider And the user terminal ID uniquely assigned to the user terminal is transmitted from the service provider based on the user terminal ID. Obtaining the requested encrypted content data, and encrypting the encrypted content data using a decryption module in a tamper-resistant device having a tamper-resistant configuration having a configuration in which the content data in the user terminal cannot be falsified. Decrypting the content data, storing the decrypted content data, DC for the content data is recorded in the index table in the set and said the stored storage location information DCD, reproduces the stored the contents data has been
A content providing method, wherein when D is input from the user, content data corresponding to a content ID matching the content ID of the DCD is read out and reproduced by referring to the index table. 2. A content providing method for providing a content to a user, comprising: acquiring advertisement information of the content, and including, in the advertisement information, a content ID, information on an acquisition source of the content, information on the content, and usage. Acquires a DCD describing possible services, and authenticates at the time of connection between the tamper-resistant memory device and the tamper-resistant memory device that can be connected to the tamper-resistant device having a configuration in which the content data of the user terminal cannot be altered. And a request, which is service request information from the user, a system profile, which is information indicating a function level including a terminal, an operating system, and an application,
User policy and DC that are conditions for service
D to generate an RRDS, obtain from a previously stored location information of the service provider location information of a service provider that provides a service corresponding to the request included in the RRDS, and obtain the location information of the service provider And information for purchase settlement processing for the content to be purchased from the service provider and a memory device ID uniquely assigned to the memory device, based on the request from the service provider based on the memory device ID. The encrypted content data is obtained by using the decryption module in the memory device connected to the tamper-resistant device having a configuration in which the content data in the user terminal cannot be falsified. And the decrypted content data is stored. A DC for reproducing the stored content data is recorded as a set of the stored storage position information and the DCD in an index table.
A content providing method for reading content data corresponding to a content ID that matches the content ID of the DCD by referring to the index table in the memory device when D is input from the user; . 3. A content providing apparatus for providing content to a user, comprising: content data and communication means for transmitting and receiving data via a network; and a request from the user, information on the content, and available services. Interface means for receiving the input of the DCD describing the content and outputting the reproduced content data to the user; a tamper-resistant device having a memory and having a configuration in which the data cannot be tampered; A DCD acquisition unit for acquiring and acquiring a content ID, information on a content acquisition destination, information on the content, and available services included in the advertisement information, and a DCD acquisition unit for inputting from a user via the interface unit Requests and terminals that are service request information to be RRDS generation means for generating an RRDS by combining a system profile which is information indicating a level of a function including an operating system and an application, a user policy which is a condition for a service, and the DCD, and location information of a service provider which is stored in advance A provider location information acquisition unit for acquiring location information of a service provider that provides a service corresponding to the request based on the RRDS; and a purchase settlement process for content purchased by the service provider based on the location information of the service provider. Means for transmitting information for the user terminal and a user terminal ID uniquely assigned to the user terminal; and encrypted content data requested from the service provider based on the user terminal ID. A decoding means for acquiring and decoding using the decoding module in the previous tamper-resistant device and storing the decoded content data; and a storage position information storing the decoded content data and the DCD as a set. Index storage means for recording in the index table, and DC for reproducing the stored content data
When D is input from the user via the interface means, the reproducing apparatus reads out and reproduces content data corresponding to a content ID that matches the content ID of the DCD by referring to the index table. A content providing device characterized by the above-mentioned. 4. A content providing apparatus for providing content to a user, comprising: a communication unit for transmitting and receiving content data and data via a network; a request from the user, information on the content, and available services Interface means for receiving the input of the DCD describing the content and outputting the reproduced content data to the user; a tamper-resistant device having a configuration in which data cannot be falsified; and data connectable to the tamper-resistant device. And a memory device having a configuration that makes it impossible to tamper with the content information, obtains advertising information of the content, and describes a content ID, information of a content acquisition source, information on the content, and available services included in the advertising information. DCD acquisition means for acquiring DCD, and contact with the tamper-resistant device. Authentication means for performing authentication at the time of connection between the memory device and the user terminal to be connected, and a request as service request information input from a user via the interface means, a terminal, an operating system, and an application RRDS generation means for generating an RRDS by combining a system profile which is information indicating a function level, a user policy which is a condition for a service, and the DCD, and a RRDS based on location information of a service provider held in advance. A provider location information acquisition unit that acquires location information of a service provider that provides a service corresponding to the request based on the location information of the service provider; and information for a purchase settlement process for content purchased by the service provider based on the location information of the service provider. And before A settlement unit for transmitting a memory device ID uniquely assigned to the memory device; and acquiring encrypted content data requested from the service provider based on the memory device ID, and tamper-resistant in the user terminal. Decoding means for decoding using a decoding module in the memory device connected to the device, and storing the decoded content data; and storage position information storing the decoded content data and the DCD as a set. Index storage means for recording the content data in an index table in the memory, and a DC for reproducing the stored content data.
When D is input from the user, the memory device refers to the index table, reads out content data corresponding to a content ID that matches the content ID of the DCD from the memory device, and plays the content data. Content providing device. 5. A content providing program for providing content to a user, wherein the content providing program acquires content advertising information, and includes a content ID, content acquisition information, content-related information, and the like included in the advertising information. A DCD acquisition process for acquiring a DCD describing available services; an authentication process for performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal; and an interface process. RRDS is generated by combining a request as service request information input from a user, a system profile as information indicating a function level including a terminal, an operating system, and an application, a user policy as a condition for a service, and the DCD. RRDS generation process; A provider location information acquisition process for acquiring location information of a service provider that provides a service corresponding to the request based on the RRDS from the location information of the service provider held therein; A settlement process for transmitting information for a purchase settlement process for content to be purchased from a service provider and a memory device ID uniquely assigned to the memory device; and the service requested based on the memory device ID. A decryption process of obtaining encrypted content data from a provider, decrypting the encrypted content data using a decryption module in the memory device connected to the tamper-resistant device in the user terminal, and storing the decrypted content data; The case where the decrypted content data is stored An index storage process of recording the storage position information and the DCD as a set in an index table in the memory; and a DC for reproducing the stored content data.
And D. when D is input from the user, refers to the index table, reads out content data corresponding to a content ID that matches the content ID of the DCD from the memory device, and plays the content data. Content providing program. 6. A content providing program for providing content to a user, wherein the content providing program obtains content advertising information, and includes a content ID, content acquisition information, content-related information, and the like included in the advertising information. A DCD acquisition process for acquiring a DCD describing available services; an authentication process for performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal; and an interface process. RRDS is generated by combining a request as service request information input from a user, a system profile as information indicating a function level including a terminal, an operating system, and an application, a user policy as a condition for a service, and the DCD. RRDS generation process; A provider location information acquisition process for acquiring location information of a service provider that provides a service corresponding to the request based on the RRDS from the location information of the service provider held therein; A settlement process for transmitting information for a purchase settlement process for content to be purchased from a service provider and a memory device ID uniquely assigned to the memory device; and a service requesting based on the memory device ID. A decryption process of acquiring the encrypted content data from a provider, decrypting the encrypted content data using a decryption module in the memory device connected to the tamper-resistant device in the user terminal, and storing the decrypted content data; The case where the decrypted content data is stored An index storage process for recording the storage location information and the DCD as a set in an index table in the memory; and a DC for reproducing the stored content data.
And D. when D is input from the user, refers to the index table, reads out content data corresponding to a content ID that matches the content ID of the DCD from the memory device, and plays the content data. Content providing program. 7. A storage medium storing a content providing program for providing a content to a user, wherein the storage medium acquires advertisement information of the content, and includes a content ID, information of a content acquisition destination included in the advertisement information, A DCD acquisition process of acquiring a DCD describing information and available services related to the content; an authentication process of performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal; A request which is service request information input from a user through the interface process, a system profile which is information indicating a level of a function including a terminal, an operating system, and an application, a user policy which is a condition for a service, and the DCD are combined RRDS that generates RRDS A generation process; a provider location information acquisition process for acquiring the location information of a service provider that provides the service corresponding to the request based on the RRDS from the location information of the service provider held in advance; A settlement process for transmitting information for purchase settlement processing for content purchased by a service provider and a memory device ID uniquely assigned to the memory device based on the location information; and a request based on the memory device ID. And decrypting the encrypted content data using the decryption module in the memory device connected to the tamper-resistant device in the user terminal and acquiring the encrypted content data from the service provider. Process and the decrypted content data An index storage process for recording the storage position information in which the data is stored and the DCD as a set in an index table in the memory; and a DC for reproducing the stored content data.
And D. when D is input from the user, refers to the index table, reads out content data corresponding to a content ID that matches the content ID of the DCD from the memory device, and plays the content data. Storage medium storing a content providing program to be executed. 8. A storage medium storing a content providing program for providing a content to a user, wherein the storage medium acquires advertisement information of the content, and includes a content ID, information of a content acquisition destination included in the advertisement information, A DCD acquisition process of acquiring a DCD describing information and available services related to the content; an authentication process of performing authentication at the time of connection between the memory device connected to the tamper-resistant device and the user terminal; A request which is service request information input from a user through the interface process, a system profile which is information indicating a level of a function including a terminal, an operating system, and an application, a user policy which is a condition for a service, and the DCD are combined RRDS that generates RRDS A generation process; a provider location information acquisition process for acquiring the location information of a service provider that provides the service corresponding to the request based on the RRDS from the location information of the service provider held in advance; A settlement process for transmitting information for purchase settlement processing for content purchased by a service provider and a memory device ID uniquely assigned to the memory device based on the location information; and a request based on the memory device ID. And decrypting the encrypted content data using the decryption module in the memory device connected to the tamper-resistant device in the user terminal and acquiring the encrypted content data from the service provider. Process and the decrypted content data An index storage process for recording the storage position information in which the data is stored and the DCD as a set in an index table in the memory; and a DC for reproducing the stored content data.
And D. when D is input from the user, refers to the index table, reads out content data corresponding to a content ID that matches the content ID of the DCD from the memory device, and plays the content data. Storage medium storing a content providing program to be executed.