JP3715581B2 - Unauthorized use prevention method and program for causing computer to perform processing in the method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for preventing unauthorized use, and in particular, illegally uploads copyrighted external data to a homepage created in a class at an educational institution such as an elementary school, a junior high school, a high school or a vocational school, and published on the Internet. The present invention relates to an unauthorized use prevention method for preventing the use of the device.
[0002]
The present invention also relates to a program for causing a computer to perform processing in such an unauthorized use prevention method.
[0003]
[Prior art]
In recent years, educational institutions such as elementary and junior high schools, high schools, and vocational schools have installed personal computers (PCs), and these PCs are used to publish websites on the Internet. Classes are being created. Moreover, with the spread of PCs and the improvement of the Internet usage rate, ordinary people and students can easily create homepages.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned prior art, the content used by the students who do not have copyright knowledge for the homepage created in the school class is external data such as images displayed on the Internet. It is often downloaded and used. Accordingly, there is a problem that a copyright problem occurs when a home page on which external data is posted without the permission of others is published on the Internet.
[0005]
In addition, there is a problem that it is difficult for instructors who are in charge of classes and administrators of websites operated by schools to check whether all the contents of websites created by multiple students fall under the copyright of others. It was.
[0006]
Therefore, an object of the present invention is to embed watermark data in external data when the downloaded data is external data that is copyrighted by another person and upload the data so that the home page created using the external data is not disclosed. To prevent unauthorized use of copyrighted data and to provide a program for causing a computer to perform processing in the method.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is a program for causing a computer to perform processing for preventing unauthorized use of external data acquired from the outside, wherein the server stores the external data acquired from the outside When the acquired external data is stored in a different server by comparing the address of the server and the address of the own server, an embedding procedure for embedding watermark data in the acquired external data is configured. The present invention relates to an unauthorized use prevention method for preventing unauthorized use of external data acquired from the outside who has the copyright of another person, and includes capturing data in which watermark data indicating the external data is embedded in uploaded data. A determination procedure for determining whether or not to include, and a cancellation procedure for canceling the upload based on a determination result of the determination procedure.
[0008]
In such an unauthorized use prevention method, it is determined whether or not the data to be uploaded includes captured data in which watermark data indicating external data is embedded, and based on the determination result, the data to be uploaded is stopped. Can be used to prevent unauthorized use of external data that is copyrighted by others.
[0009]
In order to solve the above problems, the present invention may be a program for causing a computer to perform the processing by the unauthorized use prevention method and a recording medium on which the program is recorded.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 shows a system configuration diagram in an unauthorized use prevention method according to an embodiment of the present invention. In FIG. 1, the content check system 10 in the unauthorized use prevention method includes an educational institution 2 that conducts a class for creating a student's homepage, an internal server 30 provided in the educational institution 2, and a plurality of internal servers connected to the internal server 30. The system includes an internal terminal 40 and Web servers 50 and 52 that acquire and transfer data in response to a request from the internal server 30.
[0012]
In FIG. 1, an internal server 30 and Web servers 50 and 52 of the educational institution 2 are server computers, and each component is controlled by a CPU (Central Processing Unit). The CPU performs processing by the unauthorized use prevention method according to the program stored in the memory unit. The network 1 is connected to the internal server 30 of the educational institution 2 and the Web servers 50 and 52.
[0013]
The internal server 30 mainly includes a display control processing unit 21 that controls display of data, an input / output control processing unit 22 that controls input / output of data, a communication control processing unit 23 that controls data communication, and unauthorized use. An installer 24 that installs a program for executing processing related to prevention processing, a data acquisition processing unit 31 that acquires data from the Web server 50, a watermark target DB 32 that stores data to be watermarked, and watermark data in the acquired data A watermark embedding processing unit 33 for embedding the data, a data reply processing unit 34 for transmitting the acquired data to the internal terminal 40, and an upload reception processing unit 35 for receiving the upload data and the upload request from the internal terminal 40. And a watermark check that performs processing to check whether watermark data is embedded in the uploaded data. Having a processing unit 36, and a determination distribution processing unit 37 for uploading perform processing in accordance with the possible of determining whether the result.
[0014]
The display control processing unit 21 has a display unit such as a display, and controls display data to display on the display unit. The input / output control processing unit 22 controls an input unit such as a mouse and a keyboard and an output unit such as a printer, and controls data input / output. The communication control processing unit 23 is a processing unit that controls transmission / reception data via the network 1 and includes a communication unit for connecting to a network. The installer 24 reads the program from the CD-ROM 60 on which a program for realizing the unauthorized use prevention method according to an embodiment of the present invention is recorded, and the read program is stored in, for example, an auxiliary storage device or the like. install. Then, when processing in the unauthorized use prevention method described later is started, the CPU starts the processing according to the program installed in the auxiliary storage device. The medium for storing the program is not limited to a CD-ROM, and any medium that can be read by a computer may be used.
[0015]
The data acquisition processing unit 31 acquires data from the content DB 51 of the Web server 50 in response to a request from the internal terminal 40. The watermark embedding processing unit 33 embeds predetermined watermark data in the acquired data based on the watermark target data from the watermark target DB 32 shown in FIG. The data reply processing unit 34 transmits the acquired data in which the watermark data is embedded to the internal terminal 40. The upload reception processing unit 35 receives upload data from the internal terminal 40 and also receives an upload request from the internal terminal 40. The watermark confirmation processing unit 36 performs a process of confirming whether the watermark data is embedded in the upload data. When the watermark data is embedded in the data, the determination delivery processing unit 37 transmits a result indicating that uploading is impossible to the internal terminal 40. When the watermark data is not embedded in the data, the determination distribution processing unit 37 determines whether uploading is possible. Upload data is transmitted to the Web server 52. In the Web server 52, the transmitted upload data is stored in the content DB 53.
[0016]
The internal terminal 40 includes a data request processing unit 41 that transmits a request for data to the internal server 30, a data reception processing unit 42 that receives acquired data from the internal server 30, and a captured data DB 43 that stores the acquired data , An upload request processing unit 44 that transmits upload data and an upload request to the internal server 30, and a display processing unit 45 that displays an upload result transmitted from the internal server 30.
[0017]
As shown in FIG. 4, the data request processing unit 41 transmits the transmission destination, the target data, and the transmission source data, and transmits a request for the target data to the internal server 30. Data receiver 42 receives the acquisition data from the internal server 30, and stores the acquired data as shown in FIG. 5 the captured data DB 43. The upload request processing unit 44 transmits the upload data and the upload request stored in the capture data DB 43 shown in FIG. 7 to the internal server 30. The display processing unit 45 displays the upload result transmitted from the internal server 30 on the screen of the internal terminal 40 as shown in FIG.
[0018]
Next, data processed by each processing unit and data stored in the DB will be described.
[0019]
FIG. 4 is a diagram illustrating data requested by the data request processing unit. In FIG. 4, request data 410 requested by the data request processing unit 41 has a transmission destination, target data, and a transmission source, and is transmitted to the internal server 30. For example, the request data 410 is a transmission destination “http://www.soto.com/”, target data “Taiyo.jpg”, and a transmission source “http://www.gakou.ac/a-san”. Based on the request data 410, the data acquisition processing unit 31 of the internal server 30 causes the target data “Taiyo.jpg” from the content DB 51 of the Web server 50 of the transmission destination “http://www.soto.com/”. Is acquired. Further, the destination of the request data 410 shown in FIG. 4 "http://www.gakou.ac/b-tuki" target data "Tuki.bmp", issued Xinyuan "http: //www.gakou.a c When “/ b-tuki” is transmitted to the data acquisition processing unit 31, the data acquisition processing unit 31 determines that the transmission destination and the transmission source address match, that is, the requested data is externally transmitted. It is determined that the data is not data, and the acquired data is transmitted to the internal terminal 40.
[0020]
FIG. 5 is a diagram illustrating data acquired by the data acquisition processing unit. In FIG. 5, the acquisition data 310 includes a file name acquired from the content DB 51 of the Web server 50 and actual information. For example, the acquired data 310 includes a file name “Taiyo.jpg” and actual information “image data”.
[0021]
FIG. 6 is a diagram showing a table stored in the watermark target DB. In FIG. 6, watermark target data and watermark data are stored in a table 320 stored in the watermark target DB 32. For example, watermark data “data A” is stored for watermark target data “***. Jpg”. When the data acquired by the data acquisition processing unit 31 from the Web server 50 is “***. Jpg”, the watermark data “data A” is embedded in the data acquired by the watermark embedding processing unit 33.
[0022]
FIG. 7 is a diagram showing a table stored in the capture data DB. In FIG. 7, the table 430 stored in the captured data DB 43 stores the file name received by the data reception processing unit 42 and the watermark captured data in which the watermark data is embedded by the watermark embedding processing unit 33. . For example, the file name “Taiyo.jpg”, watermark capture data “image data + data A”, file name “Tuki.bmp”, and watermark capture data “image data” are stored in the table 340.
[0023]
FIG. 8 is a diagram illustrating a screen display example of captured data in which watermark data is embedded in acquired data. FIG. 8A shows a screen 435 of the original data acquired by the data acquisition processing unit 31, and FIG. 8B shows the watermark capture data embedded with the watermark data by the watermark embedding processing unit 33. A screen 436 is shown. Only the image data of the acquired data is displayed on the screen 435 shown in FIG. On the screen 436 shown in FIG. 8B, the “watermark” of the watermark data 437 embedded together with the image data is displayed on the upper left of the screen 436.
[0024]
Next, the processing procedure of the unauthorized use prevention method will be described. FIG. 2 is a flowchart for explaining the captured data storage process. Note that the flowchart of FIG. 2 shows processing at the time of downloading acquired data in the unauthorized use prevention processing. First, in step S10, the data request processing unit 41 of the internal terminal 40 transmits the request data to the data acquisition processing unit 31 of the internal server 30 as shown in FIG. In the process of step S11, the data acquisition processing unit 31 of the internal server 30 receives the request data. In the process of step S12, the data acquisition processing unit 31 acquires data from the content DB 51 of the Web server 50 based on the request data.
[0025]
In step S13, the data acquisition processing unit 31 determines whether the acquired data is data acquired from the outside. If it is not data acquired from the outside in the process of step S13, the data reply processing unit 34 of the internal server 30 transmits the acquired data to the data reception processing unit 42 of the internal terminal 40 in the process of step S17. If the data is acquired from the outside in the process of step S13, the watermark embedding processing unit 33 acquires the watermark target data stored in the watermark target DB 32 in the process of step S14. In the process of step S15, the watermark embedding processing unit 33 determines whether the acquired data is watermark target data based on the watermark data. If the acquired data is not watermark target data in the process of step S15, the process of step S17 is performed. If the acquired data is the watermark target data in the process of step S15, the watermark embedding processing unit 33 embeds the watermark data corresponding to the acquired data in the acquired data in the process of step S16.
[0026]
Next, in step S <b> 17, the data reply processing unit 34 transmits the acquired data and the acquired data embedded with the watermark data to the internal terminal 40. In the process of step S <b> 18, the data reception processing unit 42 receives data from the internal server 30. In the process of step S <b> 19, the data reception processing unit 42 stores the captured data in which the acquired data and the watermark data are embedded in the captured data DB 43.
[0027]
FIG. 3 is a flowchart for explaining the watermark data confirmation processing. Note that the flowchart of FIG. 3 shows processing at the time of uploading in the unauthorized use prevention processing. First, in step S20, the upload request processing unit 44 of the internal terminal 40 transmits the upload request and the upload data stored in the captured data DB 43 to the upload reception processing unit 35 of the internal server 30. In step S21, the upload reception processing unit 35 of the internal server 30 receives the upload request and the upload data. In the process of step S22, the watermark confirmation processing unit 36 determines whether the upload data includes watermark data. When the watermark data is not included in the process of step S22, that is, when external data is not used for the upload data, the determination distribution processing unit 37 transfers the upload data to the web server 52 in the process of step S25.
[0028]
Further, when the watermark data is included in the process of step S22, that is, when external data that may be copyrighted by others is used for the upload data, the determination delivery processing unit 37 is performed in the process of step S23. Transmits to the internal terminal 40 to cancel the upload. In the process of step S24, the display processing unit 45 of the internal terminal 40n receives the upload stop message and displays it on the screen of the internal terminal 40.
[0029]
FIG. 9 is a diagram illustrating a screen display example of upload cancellation. FIG. 9 shows an example of a screen displayed on the screen of the internal terminal 40 in the process of step S24 shown in FIG. A display area 451 and an OK button 452 are displayed on the upload cancellation screen 450 shown in FIG. In the display area 451, “The data to be uploaded cannot be uploaded because another person has the copyright” is displayed. If the operator of the internal terminal 40 confirms the display in the display area 451 and then selects the OK button 452, the screen may return to the upload request screen.
[0030]
As described above, when the data acquired from the Web server is downloaded, the unauthorized use prevention method determines whether the acquired data is external data having the copyright of another person. Watermark data can be embedded in external data. Accordingly, since the watermark data is displayed together with the external data when the external data is displayed, it is possible to determine whether the acquired data is usable data or unusable external data.
[0031]
Further, in the case of transferring the homepage created using the acquired data to a predetermined Web server, the unauthorized use prevention method determines whether or not the watermark data is embedded in the uploaded data, and the watermark data Uploads can be canceled when is embedded. Accordingly, it is possible to prevent the disclosure of a homepage that illegally uses external data that has the copyright of another person.
[0032]
Note that the determination delivery processing unit 37 may notify not only the upload failure notification but also the upload completion result when the Web server 52 upload is completed, and display the upload completion on the screen of the internal terminal 40. .
[0033]
The content check system 10 of the present invention is not limited to the educational institution 2 but can be applied to other institutions that perform processing of creating a homepage and transferring it to a Web server.
[0034]
In addition to embedding watermark data corresponding to the identifier of the external data in each external data, it is also possible to embed watermark data that can determine whether the data is external data.
(Supplementary note 1) An unauthorized use prevention method for preventing unauthorized use of external data obtained from outside that has the copyright of another person,
A determination procedure for determining whether or not the uploaded data includes captured data in which watermark data indicating the external data is embedded;
An unauthorized use prevention method comprising: a cancellation procedure for canceling the upload based on a determination result of the determination procedure.
(Additional remark 2) The said determination procedure has a result display procedure which displays the said determination result, The unauthorized use prevention method of Additional remark 1 characterized by the above-mentioned.
(Supplementary Note 3) An embedding procedure for embedding the watermark data in the external data downloaded from the outside,
The method of preventing unauthorized use according to appendix 1 or 2, further comprising a management procedure for managing the fetched data in which the watermark data is embedded by the embedding procedure.
(Supplementary Note 4) Further, any one of Supplementary Notes 1 to 3, further comprising an external data determination procedure for determining whether or not the data is the external data by comparing a transmission destination and a transmission source of the downloaded data. The unauthorized use prevention method according to one item.
(Supplementary note 5) The unauthorized use prevention method according to any one of supplementary notes 1 to 5, wherein the embedding procedure embeds watermark data corresponding to an identifier indicating the external data.
(Appendix 6) An unauthorized use prevention device for preventing unauthorized use of external data acquired from the outside who has the copyright of another person,
Embedding means for embedding watermark data in the external data downloaded from outside,
Management means for managing the captured data in which the watermark data is embedded by the embedding means;
Determining means for determining whether to include the captured data in which watermark data indicating the external data is embedded in the data to be uploaded;
An unauthorized use preventing apparatus comprising: a canceling unit that cancels the upload based on a determination result of the determination unit.
(Supplementary note 7) A program for causing a computer to perform processing in an unauthorized use prevention method for preventing unauthorized use of external data obtained from the outside who has the copyright of another person,
An embedding procedure for embedding watermark data in the external data downloaded from the outside,
A management procedure for managing the captured data in which the watermark data is embedded by the embedding procedure;
A determination procedure for determining whether to include the captured data in which watermark data indicating the external data is embedded in the data to be uploaded;
A program having a cancellation procedure for canceling the upload based on a determination result of the determination procedure.
(Supplementary note 8) A storage medium storing a program for causing a computer to perform processing in an unauthorized use prevention method for preventing unauthorized use of external data obtained from outside that has the copyright of another person,
An embedding procedure for embedding watermark data in the external data downloaded from the outside,
A management procedure for managing the captured data in which the watermark data is embedded by the embedding procedure;
A determination procedure for determining whether to include the captured data in which watermark data indicating the external data is embedded in the data to be uploaded;
A storage medium storing a program, comprising: a cancellation procedure for canceling the upload based on a determination result of the determination procedure.
[0035]
【The invention's effect】
As described above, according to the present invention, data to be uploaded is determined by determining whether or not the data to be uploaded includes captured data in which watermark data indicating external data is embedded, and stopping the upload based on the determination result. Can be used to prevent unauthorized use of external data that is copyrighted by others.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram in an unauthorized use prevention method according to an embodiment of the present invention.
FIG. 2 is a flowchart for explaining fetched data storage processing.
FIG. 3 is a flowchart for explaining watermark data confirmation processing;
FIG. 4 is a diagram illustrating data requested by a data request processing unit.
FIG. 5 is a diagram illustrating data acquired by a data acquisition processing unit.
FIG. 6 is a diagram showing a table stored in a watermark target DB.
FIG. 7 is a diagram showing a table stored in an acquisition data DB.
FIG. 8 is a diagram illustrating a screen display example of captured data in which watermark data is embedded in acquired data.
FIG. 9 is a diagram illustrating a screen display example of upload cancellation.
[Explanation of symbols]
1 Network 2 Educational Institution 10 Content Check System 21 Display Control Processing Unit 22 Input / Output Control Processing Unit 23 Communication Control Processing Unit 24 Installer 30 Internal Server 31 Data Acquisition Processing Unit 32 Watermark Target DB
33 Watermark Embedding Processing Unit 34 Data Reply Processing Unit 35 Upload Reception Processing Unit 36 Watermark Confirmation Processing Unit 37 Decision Distribution Processing Unit 40 Internal Terminal 41 Data Request Processing Unit 42 Data Reception Processing Unit 43 Acquisition Data DB
44 Upload request processing unit 45 Display processing unit 50, 52 Web server 51, 53 Content DB
60 CD-ROM

Claims (5)

A program for causing a computer to perform processing for preventing unauthorized use of external data acquired from outside,
Comparing the address of the server where the external data acquired from the outside is stored with the address of its own server and determining that the acquired external data is stored in a different server, the watermark data is added to the acquired external data. A program characterized by having an embedding procedure for embedding.   The embedding procedure determines whether to embed watermark data according to the type of acquired data;
The program according to claim 1. A determination procedure for determining whether or not the watermark data is included in the data to be uploaded;
An upload procedure for uploading the data to be uploaded when it is determined that the data to be uploaded does not include watermark data in the determination procedure;
The program according to claim 1, further comprising: An unauthorized use prevention method for preventing unauthorized use of external data obtained from outside,
Comparing the address of the server where the external data acquired from the outside is stored with the address of its own server and determining that the acquired external data is stored in a different server, the watermark data is added to the acquired external data. An improper use prevention method characterized by having an embedding procedure for embedding. The embedding procedure determines whether to embed watermark data according to the type of acquired data;
The method of preventing unauthorized use according to claim 4.

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