JP2002269375A - Contents management method and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a contents management method and its system allowing a user to easily and safely purchase contents for use from a contents supply site. SOLUTION: From a user terminal 3, user registration is carried out in a contents management site 4, and the user purchase the contents after viewing them on a homepage of the contents management site 4 and makes a payment of a purchase charge for the contents via an Internet bank. The contents management site 4 registers the contents in a database 8 and transmits an information license and the contents to the user terminal. On the basis of the transferred license, the user terminal incorporates the contents to use them. The user terminal can return the contents license to the contents management site 4 and delete the held contents. The user can download the information for use again from the contents management site 4 on the basis of the license.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication network (intranet, Internet, extranet, UNIX (registered trademark) workstation, hereinafter referred to as the Internet) under a TCP / IP environment.
The present invention relates to a content management method and system for mediating purchase of information (for example, content content such as music, still images, and moving images, hereinafter referred to as content) and managing use of the purchased content.

[0002]

2. Description of the Related Art Conventionally, music, still image, moving image contents, and the like are provided in a communication network under a TCP / IP environment. This content is downloaded and used on a user terminal equipped with a web browser (small general-purpose computer or mobile terminal capable of surfing the Internet).

[0003] When this content is provided on a website or used by a user, software in which a copyright module is stored in a user site is used from the standpoint of copyright protection. The content usage right downloaded by such a copyright module is bound to the user terminal that has executed the download.

[0004]

A content providing site that provides content through such a website and manages the copyright of the content, and a user terminal that acquires and uses the content, have the following problems. There is a point.

(1) Content Providing Site (a) When a website that provides information to an unspecified number of users provides content, advertisements (eg, magazine advertisements or search engine banner advertisements) are issued to the users. It takes a lot of time and money for management, including management. (B) When a user uses a plurality of terminals, music and the like must be downloaded for each user terminal due to copyright. In other words, the user terminal is burdened with labor and cost, which is a hindrance to disseminating the content.

(2) User terminal (a) When the same content is used in a plurality of terminals owned by one user, the same content is downloaded from a website and used in each of the plurality of terminals. Will do. In this case, the operation is troublesome, and the download cost is increased.

(B) If the storage capacity of the user terminal is insufficient, it is necessary to delete previously stored contents in order to download new contents. In addition, an abnormality may occur in the user terminal and the stored content may not be able to be reproduced. In this case, the downloaded content needs to be backed up on a recording medium (external hard disk drive, floppy (registered trademark) disk, MO, etc.), or the content must be downloaded again, which requires time and cost. Resulting in.

(C) There are websites on the Internet that provide a great variety of contents. That is, the website from which the user obtains the desired content is not easily determined. In this case, the user checks a specialized magazine, or searches / searches by surfing the Internet.
This requires browsing, which is troublesome and expensive. (E) It is difficult and inconvenient to download and use the downloaded content stored in the user terminal at a remote location, for example, at another user terminal while away from home.

[0009] An object of the present invention is to solve such problems in the prior art. In a content providing site, mediation of content purchase can be facilitated, and in a user terminal, purchased content is provided. It is an object of the present invention to provide a content management method and a system that improve the usability (convenience) of use management.

[0010]

According to the first aspect of the present invention, there is provided a content providing site, a content managing site, and a user terminal, and mediation of content purchase. And a content management method for managing purchased content, wherein the user terminal performs user registration on the content supply site, the content supply site presents the content content to the user terminal, Purchasing the content from the content supply site, paying the content purchased by the user terminal to the content supply site, and registering the information purchased by the user terminal in the database of the content management site. And the content supply site And moving the content usage rights registered in the database to the user terminal, user terminal, characterized in that a step of capturing content based from the contents supply site content usage right.

According to the second aspect of the present invention, the user terminal of the present invention further comprises a step of returning the taken-in content usage right to the content management site and erasing the information taken in by the user terminal. .

According to the invention described in claim 3, the user terminal of the present invention is characterized by further comprising a step of taking in the content returned to the content management site based on the content usage right.

[0013] According to the invention described in claim 4, the content that the content supply site of the present invention presents the content to the user terminal is at least a content list and a content recommended to be purchased. .

According to the invention described in claim 5, the present invention provides:
In the step in which the user terminal registers the user in the content providing site, the personal terminal registers various types of personal information of the user at least for direct marketing, together with the user identification code and the password.

According to the invention described in claim 6, the content management site of the present invention further comprises a step of attaching information including an advertisement to the content when the user terminal loads the content from the content management site. And

According to the seventh aspect of the invention, the information on the usage right of the present invention is encrypted and transmitted between the content supply site and the user terminal together with the identification code and the password in the user registration. Features.

According to an eighth aspect of the present invention, the encryption according to the present invention is characterized in that an AKE (Authentication And Key Exchange) protocol is applied.

According to the ninth aspect, the present invention provides:
In a content management system that includes a content supply site, a content management site, and a user terminal and that mediates purchase of content and manages the purchased content, the content supply site accumulates the content and sends the content to the content management site based on a request. Supply, the user terminal performs user registration for purchasing the content, captures the content together with the usage right of the purchased content, and further captures the content again based on the usage right of the content. When the user terminal performs user registration, fetching and storing the content from the content supply site, moving the content usage right to the user terminal based on a request from the user terminal, and supplying the stored content to the user terminal And it features.

According to the tenth aspect, according to the ninth aspect,
The user terminal according to the invention described above is characterized in that the acquired content usage right is returned to the content management site and the information acquired by the user terminal is deleted.

According to the eleventh aspect of the present invention, the first aspect
The user terminal of the invention described in Item 0 is characterized in that the content returned to the content management site is further taken in together with the content usage right.

According to the twelfth aspect, the ninth aspect is provided.
The described invention is further characterized by further comprising a net payment means for performing payment between the user terminal and the content management site or between the user terminal and the content supply site.

According to the thirteenth aspect, the ninth aspect is provided.
The content management site of the invention described above is characterized in that when the user terminal performs user registration on the content supply site, at least the user identification code and the password are registered together with various personal information of the user for direct marketing.

According to the fourteenth aspect, in the ninth aspect,
The content management site according to the described invention is characterized in that when a user terminal takes in content from the content management site, information including an advertisement is attached to the content.

According to the fifteenth aspect, according to the ninth aspect,
The content management site of the described invention is characterized by including at least a database for storing the content and the right to use the content.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Next, a content management method and system according to the first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a system configuration according to Embodiment 1 of the present invention. In FIG. 1, in order to realize the present invention, TCP
/ Communication network (Internet) configuration under IP environment.

The communication network shown in FIG.
(Integrated Services Digital Network) and a digital mobile communication network 2 connected to the digital fixed communication network 1. The digital mobile communication network 2 has a base station (not shown),
This base station includes a number of mobile phones 10 and PDA (P
A portable terminal such as a personal digital assistant 11 is wirelessly connected.

The digital fixed communication network 1 is connected to a content management site 4 for managing content and managing the right to use the content by the user terminal (usage right). The content management site 4 is connected to a database 8 for storing contents and the like. Further, the database 8 is installed in a personal computer 12 used by a user and in a bank or a credit card company for executing various payments described below. And an internet bank 6 as an internet payment communication means.

In addition, the communication network shown in FIG. 1 has a content supply site 7 (7a, 7a, 7b,
7b) is provided. Here, the content supply site 7 displays only two for convenience, but these may be two or more.

The mobile terminal 3 performs an encryption process (for example, an AK described in detail below) as described in detail below.
E protocol) module. This module is, for example, a digital signal processor (DS)
P) and software.

The portable terminal 3 stores a program for playing back downloaded content, for example, playing back downloaded music data and managing the content.
G for facilitating instruction processing for contents
It also has a UI (Graphical User Interface).

Hereinafter, the outline of the system configuration of the present invention will be briefly described. FIG. 2 is a block diagram for explaining the outline of the system configuration of the present invention. In FIG. 2, a mobile terminal 3, a content management site 4, a content sales site 5
And the connection relationship between the Internet bank 6.

The mobile terminal 3 communicates with the content management site 4, the content management site 4 communicates with the content supply site 7, and the mobile terminal 3 makes a payment through the content management site 4. With the Internet bank 6.

The content management site 4 includes (1) a user information management unit, (2) an information providing unit, (3) a link setting unit,
(4) Payment settlement section, (5) Content distribution section, (6) Database section and the like.

As described above, the main processing of the present invention is performed in the content management site 4. Hereinafter, the processing of the content management site 4 shown in FIG. 2 will be described in detail with reference to the sequence diagrams of FIGS.

<User Registration, Content Purchase, and Purchase Content Database Registration> FIG. 3 is a sequence diagram of user registration, content purchase, and purchase content database registration processing. In FIG. 3, first, the user terminal 3 accesses the content management site 4 and inputs information for registering user information on the homepage of the content management site 4 (for example, personal information such as address, name, personal preference, etc.). )I do. Content management site 4
Registers user information. Here, in the user registration, various items are registered in the user information management unit described with reference to FIG. Table 1 shows an example of items to be registered. This item is an example, and another item may be registered.

[0036]

[Table 1]

Further, information for direct marketing for each user of the user terminal can be collected in the database 8. With this collected information, personal information for each user is collected, and effective direct marketing becomes possible.

Next, the content management site 4 presents content information to be sold on a homepage (HP). This content information is performed by the information providing unit described with reference to FIG. The user terminal browses this homepage.

Thereafter, information (for example, a product code) of a desired content purchase request is transmitted from the user terminal together with a user identification code and a password. When recognizing the user identification code and the password, the content management site 4 establishes a link between the content management site 4 and the content sales site 7 by the link setting unit in FIG. 2 and sends a purchase request from the user terminal 3 to the content sales site. 7

Upon receiving the purchase request, the content sales site 7 notifies the user terminal 3 of the sales price of the content by e-mail directly. Note that this content charge request notification may be sent from the content sales site 7 to the user terminal 3 via the content management site 4.

The user terminal 3 that has received the charge request notification sets a link with the net bank 6 via the charge settlement unit described with reference to FIG. 2 and executes remittance to the content sales site 7. In addition, this settlement can be performed by a credit card. The user terminal 3 is directly connected to the Internet bank 6
May be settled to perform settlement by transfer of a debit card or electronic money.

After the payment, the content sales site 7 stores the purchased content in the content management site 4
Send to The content management site 4 is a user terminal 3
Store the purchased content in the database 8 located in the content management site 4 by the processing of the database unit of FIG. In this case, the purchased content is stored in the database 8 in association with the user identification code and the password.

<From the content management site 4 to the portable terminal 3
FIG. 4 is a sequence diagram for moving the content usage right from the content management site 4 to the portable terminal 3. FIG. 4 shows an outline of a process in which the user terminal captures the user content and the content usage right stored in the database 8 of the content management site 4 and the captured content is used by the mobile terminal 3.

In this process, first, the user terminal 3
Is logged in to the content management site 4.
In this login, after the user accesses the content management site 4 from the user terminal 3, the user inputs a user identification code and a password on the homepage of the content management site 4.

When the content management site 4 correctly recognizes the user identification code and the password, the information (eg, content name, content creator, purchaser,
The transfer of the use right is transmitted to the user terminal 3. The user terminal 3 selects a desired content from the user content information displayed on the screen, and transmits the selected content selection information to the content management site 4.

Next, for example, mutual authentication using the AKE protocol is executed between the user terminal 3 and the content management site 4 to perform a process of sharing a session key. The mutual authentication using the AKE protocol will be described later.

Next, the content management site 4 encrypts the content key of the user content with the generated session key. The encrypted content key and the content encrypted with the content key are transmitted to the user terminal.

Next, at the user terminal 3, the encrypted content key is decrypted with the session key shared with the content management site 4, and the content key is taken out. 3 is stored in a memory (not shown) or the like. The content encrypted with the content key is also stored in a memory (not shown) in the user terminal 3.

In the portable terminal 3, the user uses the content stored in the memory. In this case, the content
The content is reproduced by user content management software (program) installed in the user terminal 3 in advance. This program decrypts the encrypted content key, decrypts the encrypted content using the content key obtained by the decryption, and displays the content on a screen or outputs music.

As a result, the user does not need to download and use the same content to a plurality of user terminals 3 owned by the user, and the labor and cost are reduced.

Further, the user terminal 3 can use the content usage right purchased through the content management site 4 with the user terminal at a remote place.

<From the mobile terminal 3 to the content management site 4
FIG. 5 is a sequence diagram showing the transfer of the content usage right from the portable terminal 3 to the content management site 4. In FIG. 5, for example, when the storage capacity of the memory in the user terminal is insufficient and new content cannot be imported, the user terminal 3 deletes the content imported from the content management site 4 and uses the content. The right is temporarily transferred to the content management site 4.

In this process, first, the user terminal 3
Is executed to log in to the content management site 4.
In this login, the user accesses the content management site 4 from the user terminal 3 and inputs a user identification code and a password on the homepage.

When the content management site 4 correctly recognizes the user identification code and the password, the content management site 4 transmits information on the content of the user stored in the database 8 from the content management site 4 to the user terminal 3. The user terminal 3 selects a desired content from the user content information displayed on the screen, and transmits the selected content selection information to the content management site 4.

Next, for example, mutual authentication using the AKE protocol is executed between the user terminal 3 and the content management site 4 to perform a process of sharing a session key. The mutual authentication using the AKE protocol will be described later.

Next, the portable terminal 3 encrypts the content identification code ID for uniquely determining the user content with the generated session key, and
Send to On the other hand, the content management site 4 transmits a content deletion request to the user terminal 3.

The user terminal 3 receiving the content deletion request deletes the content key and the content stored in the internal memory or the like.

As described above, when the user terminal 3 runs out of storage capacity, the user terminal 3 moves the stored content usage right to the content management site 4 and deletes the stored content so that the new content can be used. Content can be downloaded.

Embodiment 2 FIG. 6 is a block diagram for explaining an outline of a process according to another embodiment of the present invention. In the processing in FIG. 6, the information attachment service and the direct marketing information are collected. In FIG.
In addition to the (1) user information management unit to (6) database unit shown in FIG. 2, a new additional information management unit and a direct marketing information collection unit are newly included. In FIG. 6, the content management site 4 executes the following processing in addition to the processing of FIG. <Additional Information Management> The content management site 4 stores information provided from the content supply site 7, for example, additional information on advertisements and content, in the database 8 of the content management site 4. Content management site 4
Distributes the attached information stored in the additional information management unit to the content distributed to the mobile terminal 3.

Thus, the content management site 4
Means that you can get income from advertising information distribution. As a result, the content purchase price of the user can be reduced.

<Direct Marketing Information Collection Process> The content management site 4 collects information such as the type of content purchased by the user through the content management site 4, purchase time, and purchase time zone, and stores the information in the database 8. .

The collected information such as the purchase time and the purchase time zone is supplied to the content supply site 7 or used by the content management site 4. by this.
The content management site 4 and the content supply site 7
It is possible to know the tendency of the content to be purchased by the user.

Embodiment 3 <Partner Authentication and Session Key Sharing Between Content Management Site and User Terminal> FIG. 7 is a diagram for explaining in detail partner authentication and session key sharing between the content management site 4 and the user terminal 3 using the AKE protocol. It is a sequence diagram. In FIG. 7, the user terminal 3 receives a user certificate Cuser issued by a third-party certification authority,
The content is transmitted to the content management site 4. The content management site 4 checks whether the user certificate Cuser from the user terminal 3 is correct.

Next, the content management site 4 sends the user terminal 3 a certificate Cs issued by a third-party certification authority.
Send erver. The user terminal 3 verifies the validity of the certificate Cserver. If this verification is correct, the user terminal 3
Acquires the public key e-server of the content management site 4 from the certificate Cserver. Next, the user terminal 3 receives the random number r1
Is generated, and the random number r1 is encrypted using the public key e-server (C1 = generates Eserver (r1)).

The user terminal 3 sends the encrypted C1 to the content management site 4. Content management site 4
Using the secret key dserver, t1 = Dserver (C1) is obtained. Thereafter, the content management site 4 generates a random number r2, and the random number r2 is encrypted using the e-user (C2
= Euser (r2)). The generated t1 and C2 are transmitted to the user terminal 3.

The user terminal 3 determines that the received t1 is "t1
= R1 ”is verified. In this verification, “t1 = r1”
In the case of (2), t2 = Duser (C
Find 2). This t2 is transmitted from the user terminal 3 to the content management site 4.

The content management site 4 receives the t
It is verified whether 2 is “t2 = r2”. In this verification, "t
If “2 = r2”, a session key K is generated. Next, the content management site 4 encrypts the session key K using the public key e-user (generates S = Euser (K)). The content management site 4 transmits the encrypted S to the user terminal 3.

The user terminal 3 uses the secret key duser to
A session key K = Duser (S) is obtained, and information transmission between the user terminal 3 and the content management site 4 is executed using the session key K.

By executing the AKE protocol, eavesdropping, denial, alteration, and impersonation by a third party can be prevented.

[0070]

As is apparent from the above description, according to the content management method and system of the present invention, since the content management site provides the content information guidance in a lump, a great deal of trouble and expense are required for the user. , And the content is easily sold.

Further, according to the present invention, there is an effect that the use management of the purchased content excellent in usability (convenience) can be performed in the user terminal.

Further, according to the present invention, in the content management site, personal information for each user is collected, and effective direct marketing becomes possible.

Further, according to the present invention, the user does not need to download the content for each of a plurality of user terminals owned by the user, and the labor and cost are reduced.

Further, according to the present invention, since the purchaser of the content is guided from the content management site, the purchaser can easily find the purchaser on the user side.

Further, according to the present invention, the purchased information can be retained and managed by the content management site, so that the user can take the purchased content with another user terminal in a remote place and use it. it can.

Further, according to the present invention, when the storage capacity of the portable terminal is insufficient, the right to use the content stored in the portable terminal is moved to the content management site and stored in the portable terminal. Since the information can be deleted, new content can be downloaded.

Further, according to the present invention, since the content management site attaches information such as an advertisement to the content and transfers the information to the portable terminal, the content management site can obtain the advertisement income, and as a result, the content of the user can be obtained. The purchase price can be reduced.

Further, according to the present invention, AKE (Authent
If third party authentication using the protocol is used, eavesdropping (acquisition of malicious data on the communication path), rejection (denial of communication at the communication partner), and remodeling (communication on the communication path) Modification of transmission data by three parties), impersonation (third party impersonates another and transmits data)
Can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a system configuration according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram for explaining processing of a content management site according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a user registration according to the first embodiment of the present invention;
It is a sequence diagram of content purchase and purchase content database registration.

FIG. 4 is a sequence diagram of content use right transfer from the content management site to the user according to the first embodiment of the present invention.

FIG. 5 is a sequence diagram of a content use right transfer from a user to a content management site according to the first embodiment of the present invention.

FIG. 6 is a block diagram for explaining processing of a content management site according to Embodiment 2 of the present invention.

FIG. 7 is a sequence diagram for explaining partner authentication and session key sharing between a content management site and a user terminal according to Embodiment 3 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Digital fixed communication network 2 Digital mobile communication network 3 User terminal 4 Content management site 6 Net bank 7 Content supply site 8 Database 10 Mobile phone 11 PDA 12 Personal computer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04L 9/08 H04L 9/00 601A 601B 601E

Claims (15)

[Claims] 1. A content management method comprising a content supply site, a content management site, and a user terminal, for mediating purchase of content and managing purchased content, wherein the user terminal performs user registration on the content supply site. Step: a step in which the content providing site presents the content to the user terminal; a step in which the user terminal purchases the content from the content providing site; and a step in which the user terminal pays for the purchased content to the content providing site. Step: Registering the information purchased by the user terminal in the database of the content management site by the content providing site, and Moving the content use right registered in the database by the content providing site to the user terminal And a step in which the user terminal takes in content from the content supply site based on the content usage right. 2. The content management method according to claim 1, wherein the user terminal further comprises a step of returning the acquired content use right to the content management site and erasing the information acquired by the user terminal. 3. The content management method according to claim 2, further comprising the step of, based on the content usage right, taking in the content returned to the content management site. 4. The content management method according to claim 1, wherein the content that the content supply site presents the content to the user terminal is at least a content list and a content recommended to be purchased. 5. The method according to claim 1, wherein, in the step of registering the user in the content supply site by the user terminal, various personal information of the user is registered at least for direct marketing together with a user identification code and a password. Content management method. 6. The content management method according to claim 1, wherein the content management site further comprises a step of attaching information including an advertisement to the content when the user terminal takes in the content from the content management site. . 7. The content according to claim 1, wherein the usage right information is encrypted and transmitted between the content supply site and the user terminal together with an identification code and a password in user registration. Management method. 8. The method according to claim 1, wherein the encryption is performed by an AKE (Authentication An
The content management method according to claim 7, wherein a d Key Exchange) protocol is applied. 9. A content management system comprising a content supply site, a content management site, and a user terminal, for mediating purchase of content and managing the purchased content, wherein the content supply site stores the content and responds to the request. The user terminal performs a user registration for purchasing the content, captures the content together with the usage right of the purchased content, and further captures the content again based on the usage right of the content. When the user terminal performs user registration, the content management site captures and stores the content from the content supply site, and moves and stores the content use right to the user terminal based on a request from the user terminal. content The content management system supplies the content to the user terminal. 10. The content management system according to claim 9, wherein the user terminal returns the acquired content usage right to the content management site and erases the information acquired by the user terminal. 11. The content management system according to claim 10, wherein the user terminal further takes in the content returned to the content management site together with a content use right. 12. The system according to claim 9, further comprising a net payment means for performing payment between the user terminal and the content management site or between the user terminal and the content supply site. Content management system as described. 13. The content management site, when the user terminal performs user registration on the content supply site, registers various personal information of the user at least for direct marketing together with a user identification code and a password. The content management system according to claim 9, wherein 14. The content management method according to claim 9, wherein the content management site attaches information including an advertisement to the content when the user terminal loads the content from the content management site. 15. The content management site according to claim 9, further comprising a database for storing at least the content and the right to use the content.
Content management system as described.