JP2006243868A - Content authentication system, content creation device, content using device, content creation program, content using program and content authentication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To limit use of contents with flexible and high security. <P>SOLUTION: The content authentication system 1 comprises a creator terminal 10 used by a content creator; and user terminals 20-40 used by users of contents. The creator terminal 10 has a fingerprint authentication code database storing fingerprint authentication codes of users to which use authorities of contents are assigned. When contents are created, the creator of the contents can include the fingerprint authentication codes of users to which the use authorities of the contents are assigned, and data showing the use authority assigned to each user in the header of the contents. Therefore, in the creation of the contents, the use authorities according to a plurality of users can be set to the respective users, and the use of the contents can be limited with flexible and high security. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a content authentication system, a content creation device, a content use device, a content creation program, a content use program, and a content authentication method for handling content having usage restrictions.

2. Description of the Related Art Conventionally, in a terminal for browsing content such as an electronic book, a method for specifying a user by using biometric authentication information such as fingerprint data and restricting the operation of the terminal by a user other than the authenticated user is known.
For example, techniques for performing user authentication using fingerprint authentication when using a mobile phone terminal are described in Japanese Patent Laid-Open Nos. 2001-309050 and 2002-44727.

Japanese Patent Application Laid-Open No. 2002-16597 discloses a technique related to a method of processing content data using a fingerprint authentication code at the time of content generation for the purpose of restricting the use in units of content in addition to restricting the use in units of content. It is described in.
In the case of restricting the use in units of terminals, the contents can be used when the contents are moved to other terminals, whereas according to the method described in this publication, there are various kinds of contents whose use is restricted. It is possible to restrict the use even if it is moved to.
JP 2001-309050 A JP 2002-44727 A JP 2002-16597 A

By the way, when the use is restricted in units of content, it may be necessary to give a use authority to a plurality of specific users.
For example, when creating and distributing a certain content in an office, there may be a situation in which the use authority is given only to a user having a certain title or higher and browsing is prohibited to other users.

However, in such a case, if the techniques described in Patent Document 1 and Patent Document 2 are used, use is restricted in units of terminals, and thus a user who has the authority to use the terminal in which the content to be restricted is stored. If so, it is possible to view the content, and it is difficult to appropriately limit use.
On the other hand, when the technique described in Patent Document 3 is used, users other than the predetermined user related to the fingerprint authentication code used when creating the content cannot use the content to be restricted. As in the case of the technique described in Japanese Patent Application Laid-Open No. H11-133260, and Patent Document 2, it has been difficult to appropriately limit use.

As described above, in the conventional technology, it is difficult to limit the use of content with flexibility and high security.
An object of the present invention is to restrict the use of content with flexibility and high security.

In order to solve the above problems, the present invention provides:
A content authentication system that handles content having usage restrictions, and user identification information (for example, “User B fingerprint authentication code” in FIG. 7) for identifying each user to whom content usage authority is set; A content creation apparatus comprising authentication information adding means (for example, the CPU 12 in FIG. 2) for adding usage authority information (for example, “user B usage authority” in FIG. 7) and the like to each user. (For example, the creator terminal 10 in FIG. 1), user information input means (for example, the fingerprint authentication device 27 in FIG. 3) for inputting the user identification information regarding the user of the content, and use of the content are instructed The usage authority added to the content based on the user identification information input by the user information input means And a content utilization device including an authentication unit (for example, the CPU 22 in FIG. 3) that authenticates the usage authority with reference to the information and permits the use of the content according to the authenticated usage authority. Yes.

  With such a configuration, the creator of the content can include the user identification information of the user who gives the usage authority for the content and the usage authority information in the content. When the content is used, the user identification information is input by the user information input means provided in the content utilization device, and the user identification information is compared with the user identification information included in the content. As a result, the user can use the contents of the use authority whose authentication has been confirmed.

Therefore, at the time of content creation, it is possible to set usage rights corresponding to each user for a plurality of users, and information for authenticating users is included in the content. It is possible to restrict the use of content.
The user identification information includes a biometric authentication code (for example, an authentication code such as fingerprint authentication or iris authentication) for performing biometric authentication of each user, and the user information input means includes a biometric authentication code related to a user of the content. A biometric authentication device (for example, the fingerprint authentication device 27 in FIG. 3), and the authentication unit compares the biometric authentication code added to the content with the biometric authentication code acquired by the user information input unit It is characterized by authenticating usage rights.

As a result, users who are authorized to use content can be restricted by biometric authentication, so that higher security can be ensured.
In addition, the content creating device selects any one of the use authority information candidates set in advance in association with various attribute information of the content by designating the attribute information to be set in the target content. (For example, the input unit 11 in FIG. 2), wherein the authentication information adding means includes the user identification information and the usage authority information included in the usage authority information candidate selected by the selection means in the content. It is characterized by adding.

As a result, it is possible to reduce the complexity of input when setting the right to use the content.
The present invention also provides:
A content creation device that handles content having usage restrictions, and includes user identification information for identifying each user to whom content usage authority is set, and usage authority information indicating the usage authority given to each user. An authentication information adding means (for example, the CPU 12 in FIG. 2) to be added to the content is provided.

The present invention also provides:
A content usage apparatus that handles content having usage restrictions, comprising: user identification information for identifying each user to whom content usage authority is set; and usage authority information indicating the usage authority given to each user. Acquisition means (e.g., CPU 22 and communication unit 28 in FIG. 3), user information input means (e.g., fingerprint authentication device 27 in FIG. 3) that inputs the user identification information related to the user of the content, and content When the use is instructed, the use authority is authenticated by referring to the use authority information added to the content based on the user identification information input by the user information input means. An authentication unit (for example, the CPU 22 in FIG. 3) that permits the use of the content according to the authority. It is characterized by a door.

The present invention also provides:
A content creation program for handling content having usage restrictions, user identification information for identifying each user to whom content usage authority is set, and usage authority information indicating the usage authority given to each user And an authentication information addition function (for example, the function of step S6 in the content creation processing of FIG. 4).

The present invention also provides:
A content usage program for handling content with usage restrictions, user identification information for identifying each user to whom content usage authority is set, and usage authority information indicating the usage authority given to each user When the use of the content is instructed with respect to the content including the above, the use authority authentication is performed by referring to the use authority information added to the content based on the user identification information input regarding the user of the content And an authentication function (for example, the function by the content authentication process in FIG. 8) that permits the use of the content according to the authenticated use authority is realized in the computer.

The present invention also provides:
A content authentication method for handling content having usage restrictions,
On the content creator side, an authentication information adding step for adding to the content user identification information for identifying each user to whom content usage authority is set and usage authority information indicating the usage authority to be given to each user, When the user of content is instructed to use the content by the user information input step of inputting the user identification information related to the user of the content to the terminal used by the user of the content, and the terminal used by the user of the content In addition, based on the user identification information input in the user information input step, the use authority information is authenticated with reference to the use authority information added to the content, and the content according to the authenticated use authority is verified. And an authentication step for permitting use.

  Thus, according to the present invention, it is possible to limit the use of content with flexibility and high security.

Embodiments of a content authentication system according to the present invention will be described below with reference to the drawings.
First, the configuration will be described.
FIG. 1 is a schematic diagram showing a system configuration of a content authentication system 1 according to the present invention.
In FIG. 1, a content authentication system 1 includes a creator terminal 10 used by a content creator A and user terminals 20-D used by content users B to D created by the content creator A. 40. These devices are connected via a network.

The creator terminal 10 is configured by a PC (Personal Computer) or the like that stores the fingerprint authentication codes of the users B to D.
FIG. 2 is a block diagram illustrating a functional configuration of the creator terminal 10.
In FIG. 2, the creator terminal 10 includes an input unit 11, a CPU (Central Processing Unit) 12, a storage unit 13, a ROM (Read Only Memory) 14, a RAM (Random Access Memory) 15, and a display 16. The fingerprint authentication device 17 and the communication unit 18 are included.

  The input unit 11 includes a keyboard and a pointing device such as a mouse having cursor keys, numeric input keys, and the like, and outputs a key pressing signal and a mouse position signal pressed on the keyboard to the CPU 12. For example, in content creation processing described later, various information for creating content, authentication and usage authority of a user who is permitted to use the content, and the like are input from the input unit 11 by the content creator.

The CPU 12 controls the creator terminal 10 as a whole, and reads and executes programs related to various processes stored in the storage unit 13 in accordance with various instruction signals input from the input unit 11. For example, the CPU 12 reads a content creation processing program stored in the storage unit 13 and executes content creation processing (described later).
Then, the CPU 12 stores processing results of executing various programs and the like in a predetermined area of the storage unit 13 and the RAM 15 or displays them on the display 16.

  The storage unit 13 is configured by a nonvolatile storage device such as a hard disk. The storage unit 13 stores a fingerprint authentication code database referred to in the content creation process, the created content, and programs related to various processes for controlling the creator terminal 10. Note that the fingerprint authentication codes of the creator A and the users B to D are registered in advance in the fingerprint authentication code database.

The fingerprint authentication code database may be provided in another device such as a database server connected via a network, in addition to the case where the fingerprint authentication code database is included in the creator terminal 10.
The ROM 14 is configured by a nonvolatile semiconductor memory such as an EEPROM (Electrically Erasable Programmable Read-Only Memory), and stores program codes and the like that are executed when the creator terminal 10 is activated.

The RAM 15 stores various data associated with the processing in the CPU 12, and includes a system area for controlling the creator terminal 10 and a work area for temporarily storing data generated in various processing executed by the CPU 12. Form.
The display 16 is composed of, for example, a dot matrix type color liquid crystal display cell or the like, and displays various data in accordance with instructions from the CPU 12.

The fingerprint authentication device 17 includes a scanner for reading a fingerprint, and outputs a fingerprint authentication code obtained by encoding the read fingerprint to the CPU 12.
The communication unit 18 performs data conversion processing and modulation processing into a predetermined format for various data instructed to be transmitted from the CPU 12, and transmits the data via a network or receives signals received via the network. The signal is demodulated and the data is converted into the original data format and output to the CPU 12.

Next, the configuration of the user terminals 20 to 40 will be described.
Since the configuration of the user terminals 20 to 40 is the same, the user terminal 20 will be described as an example.
FIG. 3 is a block diagram illustrating a functional configuration of the user terminal 20.
In FIG. 3, the user terminal 20 includes an input unit 21, a CPU 22, a storage unit 23, a ROM 24, a RAM 25, a display 26, a fingerprint authentication device 27, and a communication unit 28.

  The input unit 21 includes a pressure-sensitive or electrostatic touch panel, and is provided so as to overlap the display area of the display 26. That is, a touch screen is formed by the input unit 21 and the display 26, and in the content authentication process to be described later, various information related to content authentication and various instructions to the user terminal 20 are used via the input unit 21. Input by the user B. Note that the input unit 21 may appropriately include a cursor key, a character input key, or a button switch for inputting a predetermined instruction.

The CPU 22 controls the entire user terminal 20 and reads and executes programs related to various processes stored in the storage unit 23 in accordance with various instruction signals input from the input unit 21. For example, the CPU 22 reads a content authentication processing program stored in the storage unit 23 and executes content authentication processing (described later).
Then, the CPU 22 stores processing results of executing various programs and the like in a predetermined area of the storage unit 23 and the RAM 25 or displays them on the display 26.

The storage unit 23 is configured by a nonvolatile storage device such as a flash ROM. The storage unit 23 stores content downloaded from the creator terminal 10 and programs related to various processes for controlling the user terminal 20.
The ROM 24 is configured by a nonvolatile semiconductor memory such as an EEPROM, and stores a program code executed when the user terminal 20 is activated.

The RAM 25 stores various data associated with the processing in the CPU 22 and forms a system area for controlling the user terminal 20 and a work area for temporarily storing data generated in various processing executed by the CPU 22. To do.
The display 26 is composed of, for example, a dot matrix type color liquid crystal display cell or the like, and displays various data in accordance with instructions from the CPU 22.

The fingerprint authentication device 27 includes a scanner for reading a fingerprint, and outputs a fingerprint authentication code obtained by encoding the read fingerprint to the CPU 22.
The communication unit 28 performs data conversion processing and modulation processing into a predetermined format for various data instructed to be transmitted from the CPU 22, and transmits the data via a network or receives signals received via the network. The signal is demodulated and the data is converted into the original data format and output to the CPU 22.

Next, the operation will be described.
First, the content creation process executed in the creator terminal 10 will be described.
FIG. 4 is a flowchart showing content creation processing executed by the CPU 12 of the creator terminal 10. The content creation process is started in response to an instruction input for execution of the process by the input unit 11.

In FIG. 4, when the content creation process is started, the CPU 12 starts an application (hereinafter referred to as “transfer application”) that causes the content created by the content creator A to be transferred to the user terminals 20 to 40. (Step S1).
Next, the CPU 12 displays a content authentication screen for setting authentication information for the created content (step S2).

FIG. 5 is a diagram illustrating an example of a content authentication screen.
As shown in FIG. 5, the content authentication screen shows a “user name” column indicating the content creator A and content users B to D, and content viewing authority for each user indicated by the user name. An “browsing authority” field and an “editing authority” field indicating content editing authority are displayed. In the “user name” column, the creator A enters the user name of the user who has the authority to use the created content. In each of the “browsing authority” and “editing authority” fields, “permitted” or “not permitted” items are displayed in a pull-down menu to indicate whether or not these authorities are given to each user. Then, the creator A selects “permitted” or “not permitted” depending on whether or not each user is allowed to view or edit the content.

For the creator A, the default setting is that viewing and editing authority is given.
Then, the CPU 12 accepts an input operation of the content authentication screen by the creator A (step S3), and instructs the creator A to transfer the content being created to the user terminals 20 to 40 (hereinafter referred to as “transfer start instruction”). It is determined whether or not a message is input (step S4).

If it is determined in step S4 that the transfer start instruction has not been input, the CPU 12 proceeds to the process of step S3, and if it is determined that the transfer start instruction has been input, the CPU 12 inputs it in the “user name” field on the content authentication screen. The fingerprint authentication code of the user (users B to D) is acquired from the fingerprint authentication code database in the storage unit 13 (step S5).
Next, the CPU 12 embeds the fingerprint authentication codes of the users B to D acquired in step S5 and information indicating the usage authority set for each user in the content being created (step S6).

Then, the CPU 12 displays a creator authentication screen for inputting the creator authentication information shown in FIG. 6 (step S7), and whether or not the fingerprint authentication code of the creator A is input from the fingerprint authentication device 17 (step S7). It is determined whether or not the user A has input a fingerprint into the fingerprint authentication device 27 (step S8).
If it is determined in step S8 that the creator A's fingerprint authentication code has not been input, the CPU 12 proceeds to the process in step S7.

On the other hand, when it is determined in step S8 that the fingerprint authentication code of the creator A has been input, the CPU 12 embeds the fingerprint authentication code of the creator A input from the fingerprint authentication device 17 in the content being created (step S9). .
FIG. 7 is a diagram illustrating an example of a content data format.
In FIG. 7, in the header portion of the content data, an area indicating the document attribute of the content, such as private or public, an area for storing the content creator's own fingerprint authentication code, and usage authority are given. An area for storing the user's fingerprint authentication code and an area for indicating the use authority given to the user are included, and content data is formed together with an actual data portion indicating the content. In the header part, data such as “Private” is stored in the document attribute area if the content is private, and “Public” if the content is public. Stores the fingerprint authentication code of creator A who is the creator of the content. In addition, the fingerprint authentication code of each user is stored in the area for storing the user's fingerprint authentication code to which the use authority is given, and the area indicating the use authority has a code indicating the presence or absence of editing or viewing authority (for example, For “Read” indicating browsing and “Edit” indicating editing, “1” indicating permission or “0” indicating disapproval is stored.

The area indicating the document attribute stores predetermined data according to the attribute set by the creator A in the content.
After step S9, the CPU 12 ends the content creation process.
The content created by the content creation process is transmitted to the user terminals 20 to 40 via the network.

Next, content authentication processing executed on the user terminal 20 will be described.
FIG. 8 is a flowchart showing content authentication processing executed by the CPU 22 of the user terminal 20. The content authentication process is started in response to an instruction input of content browsing on the user terminal 20.
In FIG. 8, when the content authentication process is started, the CPU 22 displays a list of contents stored in the storage unit 23 and accepts selection of contents to be displayed (step S101).

When the content is selected, the CPU 22 displays a menu screen for selecting either browsing or editing of the content (step S102).
FIG. 9 is a diagram illustrating a display screen example in steps S101 and S102.
In FIG. 9, a screen for accepting selection of content is displayed in step S101, and after the content of “patent specification b” is selected, a menu screen for selecting either viewing or editing of the content on the screen is selected. Is displayed.

Then, the CPU 22 determines whether content browsing or editing has been selected (step S103).
If it is determined in step S103 that content browsing has been selected, the CPU 22 displays a screen for authenticating content browsing authority (hereinafter referred to as a “browsing authentication confirmation screen”) (step S104).

FIG. 10 is a diagram illustrating an example of the browsing authentication confirmation screen.
In FIG. 10, a screen display that prompts the user to input a fingerprint authentication code is performed in order to authenticate the viewing authority of the content “patent specification b” for which browsing has been instructed.
After step S104, the CPU 22 determines whether or not a fingerprint authentication code has been input from the fingerprint authentication device 27 (whether or not the user B has input a fingerprint to the fingerprint authentication device 27) (step S105). If it is determined that the code has not been input, the process proceeds to step S104.

On the other hand, if it is determined in step S105 that the fingerprint authentication code has been input from the fingerprint authentication device 27, the CPU 22 refers to the header portion of the content “patent specification b” to determine whether authentication has been confirmed for browsing. Is performed (step S106).
If it is determined in step S106 that the authentication confirmation has not been obtained for the viewing of the content “patent specification b”, the CPU 22 displays a screen indicating that the user has no viewing authority (step S107).

FIG. 11 is a diagram illustrating an example of a display screen indicating that there is no viewing authority.
In FIG. 11, it is displayed that the user “browsing authority” is not set for the content “patent specification b”, and the user B's fingerprint authentication code cannot confirm the browsing authentication.
On the other hand, if it is determined in step S106 that authentication has been confirmed for the viewing of the content “patent specification b”, the CPU 22 displays in a state where only the viewing of the content “patent specification b” is permitted (step S108). .

If it is determined in step S103 that content editing has been selected, the CPU 22 displays a screen for authenticating content editing authority (hereinafter referred to as an “edit authentication confirmation screen”) (step S109).
FIG. 12 is a diagram illustrating an example of the edit authentication confirmation screen.
In FIG. 12, a screen prompting the user to input a fingerprint authentication code is displayed in order to authenticate the editing authority of the content “patent specification b” for which editing has been instructed.

After step S109, the CPU 22 determines whether or not a fingerprint authentication code has been input from the fingerprint authentication device 27 (whether or not the user B has input a fingerprint to the fingerprint authentication device 27) (step S110). If it is determined that the code has not been input, the process proceeds to step S109.
On the other hand, if it is determined in step S110 that the fingerprint authentication code has been input from the fingerprint authentication device 27, the CPU 22 refers to the header portion of the content “patent specification b” to determine whether or not authentication confirmation has been obtained for editing. Is performed (step S111).

If it is determined in step S111 that the authentication confirmation has not been obtained for the editing of the content “patent specification b”, the CPU 22 displays a screen indicating that there is no editing authority (step S112).
FIG. 13 shows an example of a display screen indicating that there is no editing authority.
In FIG. 13, it is displayed that the user's editing authority is not set for the content “patent specification b”, and the user B's fingerprint authentication code cannot confirm the authentication of editing.

On the other hand, when it is determined in step S111 that authentication confirmation has been obtained for the editing of the content “patent specification b”, the CPU 22 performs display in a state where editing of the content “patent specification b” is permitted (step S113).
After steps S107, S108, S112, and S113, the CPU 22 ends the content authentication process.

In addition, when the creator of content uses the content created by himself / herself, all use authority is given.
Therefore, for example, when the fingerprint authentication code of the content creator is input in steps S106 and S111, a screen display indicating that the authentication confirmation as the content creator has been obtained is displayed, and all usage such as viewing and editing of the content is performed. The content is displayed with permission granted.

FIG. 14 is a diagram illustrating an example of a display screen indicating that the authentication confirmation as the content creator has been obtained.
In FIG. 14, it is displayed that the user is authenticated as a content creator and can perform all operations on the content.
As described above, the content authentication system 1 to which the present invention is applied includes the creator terminal 10 used by the creator of the content and the user terminals 20 to 40 used by the user of the content. Reference numeral 10 has a fingerprint authentication code database in which a fingerprint authentication code of a user who sets authority to use content is stored.

Then, when creating content, the content creator can include in the header of the content the fingerprint authentication code of the user who gives the right to use the content and the data indicating the usage right given to each user.
When the content created in this way is used in the user terminals 20 to 40, the fingerprint authentication code of the user is acquired by the fingerprint authentication device provided in the user terminals 20 to 40, and the fingerprint authentication code and the content are acquired. Verification with the fingerprint authentication code included in the header is performed. As a result, the user can use the contents of the use authority whose authentication has been confirmed.

Therefore, at the time of content creation, it is possible to set use authority according to each user for a plurality of users, and information for authenticating users is included in the content header. It is possible to restrict the use of content with high security.
Here, in this embodiment, when setting the use authority of the user, it has been described that each item of the content authentication screen shown in FIG. 5 is set in step S2 of the content creation processing. In order to reduce this, the user who gives the use authority and the given use authority are set in advance according to the document attribute of the content and stored in the storage unit 13 or the like, and the creator of the content selects the document attribute. The use authority may be automatically set.

FIG. 15 is a diagram illustrating an example of a setting screen in a case where a user who is given a use right and a use right to be given are preset according to the document attribute of the content.
In FIG. 15, for each of the “personal document” that is a private document and the “shared document” that is a public document, a user name that gives usage authority, and whether each user is allowed to view and edit No is set.

When such settings are made, the content authentication screen shown in FIG. 5 has the form shown in FIG. 16, and the content creator selects “personal document” or “shared document” when creating the content. Therefore, it is possible to easily set the usage authority.
In such a case, the content creation process shown in FIG. 4 is a modified example as follows.

FIG. 17 is a flowchart illustrating a modification of the content creation process.
Since the modification of the content creation process shown in FIG. 17 is obtained by replacing the process of steps S2 to S5 with the process of steps S201 to S205, only the part of steps S201 to S205 will be described.
After step S1, the CPU 12 displays a content authentication screen (see FIG. 16) for selecting authentication information for the created content from the preset contents by selecting the document attribute (step S201).

Then, the CPU 12 accepts the selection of the document attribute by the creator A (step S202), and determines whether or not a transfer start instruction is input by the creator A (step S203).
If it is determined in step S203 that a transfer start instruction has not been input, the CPU 12 proceeds to the process of step S202. If it is determined that a transfer start instruction has been input, the CPU 12 corresponds to the document attribute selected in step S202. The setting contents of the authentication information (user name and usage authority) are acquired (step S204).

Then, the CPU 12 acquires the fingerprint authentication code of the user name included in the acquired setting content from the fingerprint authentication code database in the storage unit 13 (step S205).
Thereafter, the same processing as that after step S6 in FIG. 4 is performed.
Further, in the present embodiment, the case where a fingerprint authentication code is acquired by a fingerprint authentication device as an example of a means for identifying a user who is given a use right has been described as an example. However, a method other than fingerprint authentication, for example, an iris is used. Other means may be used as long as the method can identify the user, such as biometric authentication such as authentication or input of a user-specific password.

It is the schematic which shows the system configuration | structure of the content authentication system 1 which concerns on this invention. 3 is a block diagram illustrating a functional configuration of a creator terminal 10. FIG. 3 is a block diagram showing a functional configuration of a user terminal 20. FIG. It is a flowchart which shows the content creation process which CPU12 of the creator terminal 10 performs. It is a figure which shows an example of a content authentication screen. It is a figure which shows an example of the creator authentication screen for authenticating a creator. It is a figure which shows an example of the data format of a content. It is a flowchart which shows the content authentication process which CPU22 of the user terminal 20 performs. It is a figure which shows the example of a display screen in step S101 of FIG. 8, and step S102. It is a figure which shows an example of a browsing authentication confirmation screen. It is a figure which shows the example of a display screen that there is no browsing authority. It is a figure which shows an example of an edit authentication confirmation screen. It is a figure which shows the example of a display screen to the effect that there is no edit authority. It is a figure which shows the example of a display screen which shows that the authentication confirmation as a content creator was taken. It is a figure which shows the example of a setting screen in the case of presetting the user who gives a use authority, and the use authority given according to the document attribute of a content. It is a figure which shows the example of a content authentication screen in case the user who gives a use authority, and the use authority given are preset. It is a flowchart which shows the modification of a content creation process.

Explanation of symbols

1 content authentication system, 10 creator terminal, 20 to 40 user terminal, 11, 21 input unit, 12, 22 CPU, 13, 23 storage unit, 14, 24 ROM, 15, 25 RAM, 16, 26 display, 17, 27 Fingerprint authentication device, 18, 28 Communication unit

Claims (8)

A content authentication system that handles content with usage restrictions,
A content creation device comprising authentication information adding means for adding user identification information for identifying each user to whom content usage authority is set and usage authority information indicating the usage authority given to each user;
The user information input means for inputting the user identification information related to the user of the content, and when the use of the content is instructed, the user information input means added based on the user identification information input by the user information input means A content use apparatus comprising: authentication means for authenticating use authority with reference to use authority information and permitting use of the content according to the authenticated use authority;
A content authentication system comprising: The user identification information includes a biometric code for biometric authentication of each user,
The user information input means includes a biometric authentication device that acquires a biometric authentication code related to a user of content,
2. The content authentication according to claim 1, wherein the authentication unit authenticates the use authority by comparing the biometric authentication code added to the content with the biometric authentication code acquired by the user information input unit. system. The content creation device further includes selection means for selecting any of the candidates for use authority information set in advance in association with various attribute information of the content by designating attribute information to be set for the target content. Prepared,
The said authentication information addition means adds the said user identification information and the said usage authority information which are contained in the candidate of the said usage authority information selected by the said selection means to the said content. Content authentication system. A content creation device that handles content with usage restrictions,
It is characterized by comprising authentication information adding means for adding user identification information for identifying each user to whom content usage authority is set and usage authority information indicating usage authority given to each user to the content. Content creation device. A content usage device that handles content with usage restrictions,
Acquisition means for acquiring content including user identification information for identifying each user to whom content usage authority is set, and usage authority information indicating the usage authority given to each user;
User information input means for inputting the user identification information regarding the user of the content;
When the use of the content is instructed, based on the user identification information input by the user information input means, the use authority is authenticated by referring to the use authority information added to the content. An authentication means for permitting the use of the content according to the use authority;
A content use device comprising: A content creation program for handling content with usage restrictions,
And causing a computer to realize an authentication information addition function for adding user identification information for identifying each user to whom content usage authority is set and usage authority information indicating the usage authority given to each user to the content. Feature content creation program. A content usage program for handling content with usage restrictions,
When the use of the content is instructed with respect to the content including the user identification information for identifying each user to whom the content usage authority is set and the usage authority information indicating the usage authority given to each user Based on the user identification information input regarding the user of the content, the usage authority is authenticated by referring to the usage authority information added to the content, and the use of the content according to the authenticated usage authority is permitted. A content use program for causing a computer to realize an authentication function. A content authentication method for handling content having usage restrictions,
On the content creator side,
An authentication information adding step for adding to the content user identification information for identifying each user to whom content usage authority is set, and usage authority information indicating the usage authority to be given to each user;
On the content user side,
A user information input step of inputting the user identification information related to the content user to a terminal used by the content user;
When a terminal used by a user of content is instructed to use the content, the terminal is used with reference to the usage authority information added to the content based on the user identification information input in the user information input step. An authentication step of performing authority authentication and permitting the use of the content according to the authenticated use authority;
A content authentication method comprising:

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