JP3578100B2 - Content providing method and system, content providing program, and storage medium storing content providing program - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a content providing method and a content providing method. system The present invention relates to a content providing program and a storage medium storing the content providing program, and in particular, to provide content and related information and services to content users via a communication network such as the Internet or an information transmission medium such as a magazine or television. Content providing method and system And a storage medium storing the content providing program.
[0002]
[Prior art]
Today, services such as music and video are provided to users on the Internet and the like. These are, for example, music content Is posted on a WWW (World Wide Web) page together with information on the information, and a user often uses a providing means such as downloading and using it as needed.
In addition, depending on information transmission media such as magazines, analog photos content Has been provided to users for some time.
Neither of the above two forms of information provision requires the user to content It is difficult to use a service having another function related to the content data after obtaining the content data. For example, "I want to listen to a musician's song first" And greed The user who content Search for a service provider that provides the service by some means such as a search engine, and from there content You can download and watch music, but if you want another service such as "I want to watch a video clip of this song", content The trouble of searching again for the service provider that provides the service by some means arises.
[0003]
Or, from an analog photograph of a musician viewed in a magazine or the like, digitally convert the music of that musician content It is difficult to provide a service using a different information transmission medium, for example, when the user wants to obtain and listen to the information.
[0004]
In order to solve these problems, unique identification information (content ID) is assigned to the content, content Along with the content ID, content If you want to obtain information related to the Internet, users can follow the policies set by themselves without worrying about the status of their terminals or network. Content There has been proposed a method of receiving information and services related to the information.
[0005]
In this method, a data format (DCD) describing information about contents and available services is distributed through a network, a DCD handler for acquiring and analyzing DCD is provided on a user terminal, and information about contents and service provider information are provided. A content-related information providing device provided to a user terminal provides information in response to an inquiry from a user. In order for the user to obtain necessary information, the DCD handler on the user terminal receives a service request from the user, and stores the stored DCD, user information (user policy), and usage environment conditions (system profile) as contents. By transmitting the information to the related information providing device, the content related information and the available service provider information are inquired to the content related information providing device, and the service provider transmits the content related information based on the service provider information transmitted from the content related information providing device. content And get content And provides the necessary processing to the user.
[0006]
[Problems to be solved by the invention]
However, according to the above-mentioned DCD handler of the user terminal, Content Provision method is paid content It is difficult for a sponsor of the distribution service or the like to provide a service such as making the distribution service free by adding an advertisement to the content. For example, in the method using the DCD handler, a service related to the content is provided by using a data set such as attribute information of the content called DCD as data representing the content. When the service is provided to the content user, the content is provided. Because the represented DCD and the advertising service are separated, the content user does not receive the advertising service, Content Such as delivery and format conversion Content However, it is possible to receive a content service which is a process performed for the user, and there is a problem that an advertiser cannot provide an advertisement service to a user.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a content providing service capable of providing an advertisement service related to the content service without separating the content service when the user enjoys the service related to the content. It is an object to provide a method and a system, a content providing program, and a storage medium storing the content providing program.
[0008]
[Means for Solving the Problems]
FIG. 1 is a diagram for explaining the principle of the present invention.
[0009]
The present invention (claim 1) Content In a content providing method for providing a user with related information and services,
At the user terminal,
The user is authenticated by an arbitrary authentication method (step 1),
A digital signature is added to a DCD that is a data set such as a content ID and content attribute information acquired in advance and held in the user terminal by adding information related to an advertising service associated with the DCD. The DCD with the advertisement, which is data, is acquired in advance and held in the user terminal, and the digital signature of the DCD with the advertisement is verified by a verification method corresponding to the digital signature to confirm that there is no tampering (step 2),
Obtain a service request for DCD with advertisement from the user (step 3),
Sending a service request to the content-related information provider device that provides the content-related information (step 4);
Receiving service-related information on the content corresponding to the service request from the content-related information provider device (step 5);
Present service related information to the user (step 6),
A service ID indicating the service determined by the user from the service-related information and the user information are transmitted to the advertisement provider device using the access information to the advertisement provider device included in the DCD with advertisement (step). 7),
The advertisement provider device
Advertisement information is selected from the service ID and the user information, a digital signature of an advertisement provider is performed on the user information, and the digital signature is transmitted to the user terminal together with the advertisement information as digitally signed user information (step 8);
The user terminal
Receiving the digitally signed user information and the advertisement information from the advertisement provider device, and presenting the advertisement information to the user (step 9);
Transmitting the digitally signed user information and the service request determined by the user to the service provider device (step 10);
The service obtained from the service provider device is provided to the user (step 11).
[0010]
FIG. 2 is a diagram illustrating the principle of the present invention.
[0011]
The present invention (claim 2) has a user terminal, an advertisement provider device, a content-related information provider device for providing content-related information, and a service provider device for providing a service. Content A content providing system for providing users with related information and services,
The user terminal 200
A user authentication unit 101 for authenticating a user by an arbitrary authentication method;
A digital signature is added to DCD, which is a data set such as a content ID and content attribute information acquired in advance and held in the user terminal, by adding information related to an advertising service associated with the DCD. DCD verification means 102 for verifying the digital signature of the DCD with advertisement, which is obtained data, by a verification method corresponding to the digital signature to confirm that there is no falsification;
Service request acquisition means 103 for acquiring a service request for the DCD with advertisement from the user;
Service-related information presenting means 103 for transmitting and receiving data to and from the related information provider device, transmitting a service request, acquiring service-related information relating to content corresponding to the service request, and presenting it to the user;
A service ID indicating the service determined by the user from the service-related information and the user information are transmitted to the advertisement provider device by using the access information to the advertisement provider device included in the DCD with advertisement, and Receiving, from the advertisement provider device, advertisement information selected based on the service ID and the user information, and digitally signed user information in which the advertisement provider has digitally signed the user information; Advertising information providing means 104 for presenting information to the user;
Content providing means 106 for transmitting the digitally signed user information and the service request determined by the user to the service provider device and providing the obtained service to the user.
The present invention (claim 3) has a user terminal, an advertisement provider device, a content-related information provider device for providing content-related information, and a service provider device for providing a service. Content In a content providing system for providing a user with related information and services, a content providing program to be executed by the user terminal,
A user authentication step of authenticating the user by an arbitrary authentication method;
A digital signature is added to DCD, which is a data set such as a content ID and content attribute information acquired in advance and held in the user terminal, by adding information related to an advertising service associated with the DCD. A DCD verification step of verifying the digital signature of the DCD with advertisement, which is obtained data, by a verification method corresponding to the digital signature to confirm that there is no falsification;
A service requesting step of acquiring a service request for the DCD with advertisement from the user;
A service-related information presenting step of transmitting and receiving data to and from the related information provider device, transmitting a service request, acquiring service-related information relating to content corresponding to the service request, and presenting the service-related information to a user;
A service ID indicating the service determined by the user from the service-related information and the user information are transmitted to the advertisement provider device by using the access information to the advertisement provider device included in the DCD with advertisement, and Receiving, from the advertisement provider device, advertisement information selected based on the service ID and the user information, and digitally signed user information in which the advertisement provider has digitally signed the user information; Advertisement information providing step of presenting information to the user;
Transmitting the user information with the digital signature and the service request determined by the user to the service provider device, and executing the content providing step of providing the obtained service to the user.
[0012]
The present invention (claim 4) has a user terminal, an advertisement provider device, a content-related information provider device for providing content-related information, and a service provider device for providing a service, Content In a content providing system for providing related information and services to a user, a storage medium storing a content providing program to be executed by the user terminal,
A user authentication step of authenticating the user by an arbitrary authentication method;
A digital signature is added to DCD, which is a data set such as a content ID and content attribute information acquired in advance and held in the user terminal, by adding information related to an advertising service associated with the DCD. A DCD verification step of verifying the digital signature of the DCD with advertisement, which is obtained data, by a verification method corresponding to the digital signature to confirm that there is no falsification;
A service requesting step of obtaining a service request for the DCD with advertisement from the user;
A service-related information presenting step of transmitting and receiving data to and from the related information provider device, transmitting a service request, acquiring service-related information relating to content corresponding to the service request, and presenting the service-related information to a user;
A service ID indicating the service determined by the user from the service-related information and the user information are transmitted to the advertisement provider device by using the access information to the advertisement provider device included in the DCD with advertisement, and Receiving, from the advertisement provider device, advertisement information selected based on the service ID and the user information, and digitally signed user information in which the advertisement provider has digitally signed the user information; Advertisement information providing step of presenting information to the user;
A program for transmitting the digitally signed user information and the service request determined by the user to the service provider device, and executing a content providing step of providing the obtained service to the user is stored.
[0013]
According to the present invention, link information, access information, application information, and the like to an advertisement service corresponding to each content user are added to the DCD representing the content in a non-separable format using a signature technique or the like, and the user When the user enjoys the service related to the content service, the content service cannot be used unless the advertisement service is received. Thereby, when the content user enjoys the content service, the service provider checks whether or not the user has received the advertisement service provided in a form inseparable from the DCD (the user is required to provide the advertisement service). Receiving the received signal), the content service can be provided to the user only when the user receives the advertisement service.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Prior to the following description, terms used in the following description will be described.
[0017]
The “content ID” indicates a number that uniquely indicates the content.
[0018]
"Service" content The function of the processing performed for Specifically, it refers to individual functions such as content delivery and format conversion.
[0019]
“Service provider” refers to a server that provides a service.
[0020]
"Content information" Some content , Various information related to the content, service information that can be provided for the content, and the like.
[0021]
"Content information DB" refers to various formats and encoding formats for each content. Content and Is a database in which various information related to contents, descriptions of provided services, and the like are stored. The outline is shown in FIG.
[0022]
“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".
[0023]
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.
[0024]
An “application” is software or hardware that runs on a user terminal and is used to receive a service, or both.
[0025]
The “system profile” is information indicating a function level 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.
[0026]
“DCD (distributed content descriptor)” refers to a content ID and a set of service descriptors (referred to as service list information) indicating a service for the content specified by the content ID, and a subset of attribute information. It is data including.
First, a system on which the present invention is based will be described.
[0027]
FIG. 4 shows an outline of a configuration of a content providing system which is a premise in one embodiment of the present invention.
[0028]
The content providing system shown in FIG. 1 includes a content-related information providing apparatus 100 which is a server to which RRDS is input, a user terminal 200, and a service provider 300.
[0029]
It is assumed that the user terminal 200 has a DCD obtained in some form, such as manual input by the user 10 or download from the WWW (World Wide Web). Represented by the content ID described in the DCD Content The user who wants the delivery requests the request.
[0030]
The DCD handler 230 is a mechanism that operates on the user terminal 200, 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.
[0031]
The content-related information providing apparatus 100 includes 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, Content The service provider information of the delivery source is obtained. Further, a service provider that satisfies the condition information described in the attribute information of the content, the request (content data 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.
When the DCD handler 230 of the user terminal 200 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 10. The DCD handler 230 waits for an input from the user 10, performs the same processing again according to the input, and inquires the content-related information providing apparatus 100 about information. Alternatively, when the service provider 300 is uniquely specified, the application corresponding to the service provider 300 is started, and necessary information such as attribute information of the content is passed to the application.
[0032]
The application makes a service request to the service provider 300 specified above, and the service provider 300 responds to the service request. content To the application. This allows the user to access from the service provider through the application content Can be received.
[0033]
FIG. 5 is a sequence chart showing an outline of an operation of the content providing system which is a premise in one embodiment of the present invention.
[0034]
Step 101) The user terminal 200 receives input of a DCD and a request from the user 10. Note that the DCD can be obtained by downloading from the WWW in addition to the user 10.
[0035]
Step 102) The DCD handler 230 of the user terminal 200 generates an RRDS by combining the DCD, request, user policy, and system profile.
[0036]
Step 103) The RRDS generated by the DCD handler 230 is transmitted to the content-related information providing apparatus 100.
[0037]
Step 104) The content-related information providing apparatus 100 corresponds to the DCD in the RRDS. Content Retrieve attribute information from the attribute information database 110, Content The service provider information of the delivery source is acquired, and a service provider that satisfies the conditions described in the content distribution request information, the user policy, and the system profile is searched.
[0038]
Step 105) The search result is transmitted to the user terminal 200 together with the content attribute information as a resolve result.
[0039]
Step 106) The user terminal 200 presents the result of the resolve to the user 10, and when the DCD or the request is received again from the user, performs the same processing as the processing from the above-described step 101. If the service provider is uniquely determined in step 104, the application corresponding to the service provider is started.
[0040]
Step 107) The application in the user terminal 200 issues a service request to the specified service provider 300.
[0041]
Step 108) The service provider 300 responds to the service request. content To the user terminal 200.
[0042]
Thereby, the user terminal 200 content To the user 10 thing Is possible.
[0043]
Hereinafter, the user terminal in the above system will be mainly described. Note that, in the configuration of FIG. 5 described above, an example is described in which the user terminal 200 transmits an RRDS, which is a set of a DCD and a request, to the content-related information providing apparatus 100. The description will be made on the assumption that the user terminal 200 acquires a request from a content user, transmits the content ID included in the request to the content-related information providing apparatus 100 in the DCD.
[0044]
In the following, a system for providing a content to which an electronic advertisement is provided to a user will be described.
[0045]
In the present invention, a content is provided by giving an electronic advertisement that is inseparable from the content to the user. For example, with advertising data Content A signature of the content provider is given to the concatenated one, and the user terminal verifies the digital signature by a verification method corresponding to the digital signature method. content Is not equal, that is, if it is found that erasure or tampering has been performed, content Do not play the. In addition, verification can verify that content If you find that content This can be realized by providing a mechanism that enables reproduction of the data.
For this purpose, the user terminal 200 requests advertisement information from the advertisement provider using the DCD which is a data set storing the content ID and the attribute thereof, acquires the advertisement information and the signed ID of the advertisement provider, and acquires the signature. Using ID content Is required.
[0046]
FIG. 6 shows a configuration of a content providing system according to an embodiment of the present invention. The system shown in FIG. 1 includes a content-related information providing device 100, a user terminal 200, a service provider 300, an advertisement provider device 400, and a network (Internet) 500 connecting these devices.
[0047]
Hereinafter, the processing will be described based on the configuration shown in FIG.
[0048]
The DCD has a configuration shown in FIG. The DCD shown in the figure is called a DCD with advertisement, and information related to an advertisement service (access information to an advertisement provider, an expiration date, etc .; hereinafter, referred to as advertisement-related information) is added to the DCD shown in the configuration of FIG. Is described, and a digital signature of an advertisement provider or a service provider is given so that this part cannot be removed. Further, in the system of the present invention, it is assumed that the content-related information providing apparatus 100 does not resolve (provide the content-related information) the DCD to which the signature of the advertisement provider or the service provider is not given.
[0049]
The operation of the system shown in FIG. 6 will be described.
[0050]
FIG. 8 is a flowchart of processing inside the DCD handler according to one embodiment of the present invention.
[0051]
Step 201) The content user exchanges with the DCD handler 230 (user terminal), and first authenticates the user. As the authentication method, any authentication method such as authentication using user biometrics information, such as authentication using a password, can be used.
[0052]
Step 202) The DCD handler 230 acquires a request from the content user and determines a service request for DCD as shown in FIG. Step 203) Here, the DCD handler 230 checks the digital signature of the DCD (the signature of the advertisement provider or the service provider) and confirms the validity of the signature.
[0053]
Step 204) If the verification result is correct, proceed to Step 206; otherwise, proceed to Step 205.
[0054]
Step 205) As a result of the verification, the fact that the DCD is incorrect is presented to the content user.
[0055]
Step 206) Next, the validity period of the advertisement-related information added to the DCD is checked. If the DCD is valid and within the validity period, the process proceeds to step 208. If the validity period has expired, the process proceeds to step 208. Move to 207.
[0056]
Step 207) In addition to notifying that the DCD has expired, presenting to the content user that the content service cannot be used, and prompting the user to obtain a new DCD. As a method for obtaining a new DCD, an existing method is used.
[0057]
Step 208) The DCD handler 230 transmits the service ID, DCD, and user ID of the determined content to the advertisement provider device 400.
[0058]
Step 209) The DCD handler 230 waits until receiving the signed user ID and the advertisement information from the advertisement provider device 400. Here, the advertisement provider device 400 transmits the DCD received from the DCD handler 230 and the service ID. A user From the ID, advertisement information corresponding to the user is selected, and the advertisement user digitally signs the user ID received from the DCD handler 230, and replies to the DCD handler 230 along with the advertisement information as a digitally signed user ID. . The processing of the advertisement provider device 400 will be described later.
[0059]
Step 210) The DCD handler 230 receives the signed user ID and the advertisement information from the advertisement provider device 400.
[0060]
Step 211) The DCD handler 230 presents the received advertisement information to the content user using an application or the like in the user terminal 200. Step 212) Thereafter, the DCD handler 230 transmits the service request for the content and the digitally signed user ID received from the advertisement provider device 400 to the service provider 300.
[0061]
Step 213) In these processing steps, the DCD handler 230 checks the user ID of the content user and the user ID with the digital signature one by one so that the user ID with the signature does not change.
[0062]
Step 214) If the two user IDs do not match, the process is interrupted and terminated there.
[0063]
Step 215) The service provider 300 checks the validity period of the signed user ID received from the user terminal 200 and the validity of the signature. If the user ID with digital signature is valid and within the valid period, the service provider 300 uses the content service. To provide.
[0064]
Next, processing of the above-described advertisement provider device will be described.
[0065]
FIG. 9 is a flowchart of a process inside the advertisement provider device according to the embodiment of the present invention.
[0066]
Step 301) Receive DCD and service ID from DCD handler 230.
[0067]
Step 302) Advertisement information is selected from the user ID, DCD, and service ID.
[0068]
Step 303) Digitally sign the user ID to generate a signed user ID.
[0069]
Step 304) The advertisement information and the signed user ID are returned to the DCD handler 230.
[0070]
Here, a general transaction ID can also be assigned to the digitally signed user ID in order to prevent the content user from reusing the digitally signed user ID.
[0071]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0072]
In the following embodiments, a content providing system using a game device will be described.
[0073]
FIG. 10 is a diagram showing an example in which the game device in one embodiment of the present invention is a user terminal.
[0074]
A content providing system using a game device includes a game device 200, a PC, a TV, and the like. Content review It comprises a prize device 600, a content-related information providing device 100, a service providing device (provider) 300, and a network (Internet) 500 connecting them.
[0075]
Inside the game device 200, there are a user interface unit 210, a game program 220, a DCD handler 230, and a communication processing unit 240.
[0076]
The user exchanges with the DCD handler 230 via the user interface unit 210 of the game device 200 to perform authentication.
[0077]
Next, the DCD handler 230 acquires a request from the user via the user interface unit 210 and determines a service request for DCD. Here, the DCD handler 230 checks the digital signature of the DCD (the signature of the advertisement provider or the service provider) and confirms the validity of the signature. Next, the expiration date of the advertisement-related information added to the DCD is checked. If the DCD is valid and within the expiration date, the DCD handler 230 sends the determined service ID of the game to the advertisement provider device 400 and Transmit DCD and user ID.
[0078]
The DCD handler 230 waits until receiving the signed user ID and the advertisement information from the advertisement provider device 400. Here, the advertisement provider device 400 selects advertisement information corresponding to the user from the DCD received from the user and the game service ID user ID, and the advertisement provider digitally signs the user ID received from the user. Then, it returns a digital signature user ID to the DCD handler 230 of the game device 200 together with the advertisement information.
[0079]
The DCD handler 230 receives the signed user ID and the advertisement information from the advertisement provider device 400, and presents the received advertisement information to the user using an application or the like in the game device 200.
[0080]
After that, the DCD handler 230 transmits the service request related to the game and the user ID with the digital signature received from the advertisement provider device 400 to the service provider 300.
[0081]
If the verification of the validity of the signed user ID fails in these processing steps, the processing is interrupted and terminated.
[0082]
The service provider 300 checks the validity period of the signed user ID received from the DCD handler 230 of the game device 200 and the validity of the signature. Is provided to the user.
[0083]
Thereby, the game device 200 receives an advertisement service provided in a format inseparable from the DCD with the advertisement information acquired from the advertisement provider device 400, and only receives the advertisement service from the service provider 300 Will be provided.
[0084]
Note that the processing of the DCD handler 230 can be constructed as a program and installed in the CPU in the user terminal, or can be distributed via a network.
[0085]
Further, the present invention is easily realized by storing the constructed program in a portable storage medium such as a hard disk, a floppy disk, or a CD-ROM in a user terminal and installing the program when implementing the present invention. it can.
[0086]
It should be noted that the present invention is not limited to the above-described embodiment, and various modifications and applications are possible within the scope of the claims.
[0087]
【The invention's effect】
As described above, according to the present invention, in a service in which an advertisement is presented to a content user (user) and paid content is provided free of charge, in a general content providing system, separated content is used. The distribution service and the advertisement providing service can be made inseparable. That is, in order to receive the content service, the content user must always obtain the advertisement information.
[0088]
Further, according to the present invention, when the content user distributes the advertisement, the information regarding the content service desired by the content user is transmitted to the advertisement provider when the advertisement is distributed to the content user. In addition, it is possible to provide an advertisement according to the taste of the content user.
[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 an example of a content information DB according to an embodiment of the present invention.
FIG. 4 is a configuration diagram of a content providing system according to an embodiment of the present invention.
FIG. 5 is a sequence chart showing an outline of an operation of the content providing system according to the embodiment of the present invention.
FIG. 6 is a configuration diagram of a content providing system according to an embodiment of the present invention.
FIG. 7 is an example of a DCD with advertisement in one embodiment of the present invention.
FIG. 8 is a flowchart of a process inside the DCD handler according to the embodiment of the present invention.
FIG. 9 is a flowchart of a process inside the advertisement provider device according to the embodiment of the present invention.
FIG. 10 is a diagram illustrating an example in which a game device according to an embodiment of the present invention is a user terminal.
[Explanation of symbols]
10 users
100 Content-related information providing device
101 User authentication means
102 Service request acquisition means
103 Service related information presentation means
104 Advertising Information Providing Means
105 User information verification means
106 Content Provision Means
110 Attribute information output 110
120 Service provider information output
200 user terminal, game machine
210 User interface section
220 game program
230 DCD handler
240 communication processing unit
300 Service Provider
400 advertisement provider device
500 Internet
600 PC / TV

Claims (4)

In a content providing method for providing a user with information and services related to content,
At the user terminal,
Authenticate the user by any authentication method,
An advertisement-added DCD, which is data obtained by adding information on an advertising service associated with the DCD to a DCD that is a data set such as content ID and content attribute information and adding a digital signature, to the user terminal in advance, And keep
The digital signature of the DCD with advertisement is verified by a verification method corresponding to the digital signature to confirm that there is no tampering,
Obtaining a service request for the DCD with advertisement from the user,
Transmitting the service request to a content-related information provider device that provides content-related information,
Receiving service related information related to the content corresponding to the service request from the content related information provider device,
A service ID indicating a service determined by a user from the service-related information and user information are transmitted to the advertisement provider device by using access information to the advertisement provider device included in the DCD with advertisement. ,
The advertisement provider device,
Selecting the advertisement information from the service ID and the user information, performing a digital signature of an advertisement provider on the user information, transmitting the digital information to the user terminal together with the advertisement information as digitally signed user information,
The user terminal,
Receiving the digitally signed user information and advertisement information from the advertisement provider device, and presenting the advertisement information to the user;
Transmitting the digitally signed user information and a service request determined by the user to a service provider device,
A content providing method, wherein a service obtained from the service provider device is provided to the user. User terminal, the advertisement provider device, content-related information provider apparatus for providing content related information, has a service provider device that provides a service, the content providing system for providing information and services to users associated with the content And
The user terminal,
User authentication means for authenticating the user by an arbitrary authentication method,
A digital signature is added to DCD, which is a data set such as a content ID and content attribute information acquired in advance and held in the user terminal, by adding information related to an advertising service associated with the DCD. DCD verification means for verifying the digital signature of the DCD with advertisement, which is obtained data, by a verification method corresponding to the digital signature to confirm that there is no falsification;
Service request acquiring means for acquiring a service request for the DCD with advertisement from the user;
Service-related information presenting means for transmitting and receiving data to and from the related information provider device, transmitting the service request, acquiring service-related information on content corresponding to the service request, and presenting the service-related information to the user;
A service ID indicating a service determined by a user from the service-related information and user information are transmitted to the advertisement provider device by using access information to the advertisement provider device included in the DCD with advertisement. Receiving, from the advertisement provider device, the service ID, advertisement information selected based on the user information, and digitally signed user information in which an advertisement provider digitally signs the user information; Advertisement information providing means for presenting DCD advertisement information to the user;
Content providing means for transmitting the digitally signed user information and the service request determined by the user to a service provider device, and providing the obtained service to the user;
Content providing system characterized by having. User terminal, the advertisement provider device, content-related information provider apparatus for providing content related information, has a service provider device that provides a service, the content providing system for providing information and services to users associated with the content A content providing program for causing the user terminal to execute,
A user authentication step of authenticating the user by an arbitrary authentication method,
Data obtained by adding information on an advertising service associated with the DCD to a DCD, which is a data set such as a content ID and content attribute information, acquired in advance and held in the user terminal, and adding a digital signature to the DCD. A DCD verification step of verifying the digital signature of the DCD with advertisement by a verification method corresponding to the digital signature to confirm that there is no tampering;
A service requesting step of acquiring a service request for the DCD with advertisement from the user;
Transmitting and receiving data to and from the related information provider device, transmitting the service request, obtaining service related information on content corresponding to the service request, and presenting the user with service related information,
A service ID indicating a service determined by a user from the service-related information and user information are transmitted to the advertisement provider device by using access information to the advertisement provider device included in the DCD with advertisement. Receiving, from the advertisement provider device, advertisement information selected based on the service ID and the user information, and digitally signed user information in which an advertisement provider digitally signs the user information; An advertisement information providing step of presenting the DCD advertisement information to the user;
A content providing step of transmitting the advertisement provider digitally signed user information and a request for a service determined by the user to the service provider device, and providing the user with a service obtained from the service provider device;
And a content providing program for executing the program. User terminal, the advertisement provider device, content-related information provider apparatus for providing content related information, has a service provider device that provides a service, the content providing system for providing information and services to users associated with the content A storage medium storing a content providing program to be executed by the user terminal,
A user authentication step of authenticating the user by an arbitrary authentication method,
Data obtained by adding information on an advertising service associated with the DCD to a DCD, which is a data set such as a content ID and content attribute information, acquired in advance and held in the user terminal, and adding a digital signature to the DCD. A DCD verification step of verifying the digital signature of the DCD with advertisement by a verification method corresponding to the digital signature to confirm that there is no tampering;
A service requesting step of acquiring a service request for the DCD with advertisement from the user;
Transmitting and receiving data to and from the related information provider device, transmitting the service request, obtaining service related information on content corresponding to the service request, and presenting the user with service related information,
A service ID indicating a service determined by a user from the service-related information and user information are transmitted to the advertisement provider device by using access information to the advertisement provider device included in the DCD with advertisement. Receiving, from the advertisement provider device, advertisement information selected based on the service ID and the user information, and digitally signed user information in which an advertisement provider digitally signs the user information; An advertisement information providing step of presenting the DCD advertisement information to the user;
A content providing step of transmitting the advertisement provider digitally signed user information and a request for a service determined by the user to the service provider device, and providing the user with a service obtained from the service provider device;
And a storage medium storing a content providing program.

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