WO2006022011A1 - 情報表示プログラム、情報表示プログラムの作成プログラム及び情報表示プログラムの作成装置 - Google Patents
情報表示プログラム、情報表示プログラムの作成プログラム及び情報表示プログラムの作成装置 Download PDFInfo
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- WO2006022011A1 WO2006022011A1 PCT/JP2004/012306 JP2004012306W WO2006022011A1 WO 2006022011 A1 WO2006022011 A1 WO 2006022011A1 JP 2004012306 W JP2004012306 W JP 2004012306W WO 2006022011 A1 WO2006022011 A1 WO 2006022011A1
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- Prior art keywords
- information
- display
- program
- data
- identification information
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/606—Protecting data by securing the transmission between two devices or processes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
Definitions
- Information display program information display program creation program, and information display program creation device
- the present invention is an information display program capable of displaying information only with a specific terminal, which can be used when only a specific party wants to view confidential information etc., a program for creating the information display program, and
- the present invention relates to an apparatus for creating an information display program.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9-44407
- Patent Document 2 Japanese Patent Application Laid-Open No. 10-111833
- Patent Document 3 Japanese Patent Application Laid-Open No. 2000-259567
- Access control is effective in closed networks such as in-house LANs, but there is a limit, for example, when it is necessary to transmit information to the outside such as an agency or a cooperating company. Also, if you want to send a file to a new destination, you have to set access permissions, and in the case where you send files to various parties frequently, you need to set access permissions. The procedure is particularly complicated.
- the present invention has been made to solve such problems, and it is possible to use a specific terminal or a specific user, which can be used when it is desired to make confidential information etc. be viewed only by a specific party.
- An information display program capable of displaying information only when operated by a computer, an information display program creation program, and an information display program creation apparatus, which are created on a personal computer on a daily basis especially for business use.
- the purpose is to provide a simple program and system suitable for managing files that are frequently transmitted and received.
- a first invention for solving the problems relating to the present invention is a program for displaying the information in which first identification information related to a computer permitted to display predetermined information is described. Reading out the first identification information from the program to a computer that has started the program, acquiring second identification information about the computer, the first identification information, and the second identification information When the step of comparing and when the first identification information and the second identification information match, data for displaying the predetermined information is read out from the program, and the device connected to the computer is read or Creating display data for output to a printer And an information display program characterized by causing
- a display condition for displaying the predetermined information is described in the program, and the display condition is read out to a computer which has started the program.
- the data for displaying the predetermined information described in the program is encrypted by using the first identification information as a key, and the display data is created.
- the display data may be created by decrypting the encrypted data for displaying the predetermined information using the second identification information as a key.
- identification information such as the IP address or MAC address of the computer operated by the other party to which the information is to be transmitted is written in a program for displaying information, and compared with the identification information of the computer that started the program.
- the first invention in addition to the condition that the identification information such as the IP address and the MAC address is the same, setting conditions such as the display time limit and the number of times of display of the information are set. Can also reduce the possibility of unauthorized viewing of information by third parties.
- the identification information such as the IP address and the MAC address is used as a key to decipher the information using the identification information of the computer that displays the information.
- the data to be encrypted is the data of the variable part for displaying predetermined information in the information display program, but in addition to encrypting the viewer program part for display etc. It is also good.
- a second invention for solving the problems relating to the present invention is a program for displaying predetermined information on a computer, wherein the start of the program is the first start on the computer that has started the program.
- the activation of the program is the first activation, acquiring the first identification information on the computer in the computer; and Writing the identification information of 1 as the identification key of the computer permitted to display the predetermined information, storing the program in which the first identification information is written in the computer, and the predetermined information from the program Read data for displaying information and output it to a display or printer connected to the computer Creating the first display data, and reading out the first identification information from the program in the computer if the program has been launched for the second time or later.
- the method further comprises the steps of reading out data for displaying the predetermined information from the program and creating display data for output to a display or a printer connected to the computer. It is an information display program.
- a display condition for displaying the predetermined information is described in the program, and the display condition is read out to a computer which has started the program.
- the display data may be created when it is determined that the information matches and the display condition is met.
- the activation of the program is an initial activation
- data for displaying the predetermined information described in the program on the computer is provided.
- the display data may be created by decrypting the data for displaying the information of the second identification information with the second identification information.
- identification information such as an IP address or a MAC address of a computer operated by the other party who transmits the information on the program creation side. Even when the identification information of the transmission destination is unknown, it is possible to exhibit the same effect as the first invention. That is, in the second invention, when the other party who receives the program performs the start operation for the first time, identification information such as the IP address or MAC address of the computer operated by the other party is acquired and written in the program. At the time of the second and subsequent start-up, make sure that it is a computer that is permitted to display information in comparison with the identification information of the computer that started the program, and then set the information display process to be executed. Can prevent third parties from viewing illegal information through illegal copying.
- the setting of display conditions such as the display time limit and the number of display for information display, and the identification information of the computer such as the IP address and the MAC address are used as information keys.
- the points that can be done are the same as in the case of the first invention.
- encryption with the force identification information performed on the program creation side as a key is performed at the first activation on the program receiving side.
- a third invention for solving the problem according to the present invention is a program for displaying the information in which first identification information on a user authorized to display predetermined information is described. Reading out the first identification information from the program to a computer that has started the program; acquiring second identification information about a user operating the computer; the first identification information; and the second When the first identification information matches the second identification information, data for displaying the predetermined information is read out from the program and connected to the computer.
- a program for displaying information comprising the steps of: creating display data to be output to a connected display or printer.
- a display condition for displaying the predetermined information is described in the program, and the display condition is read out to a computer which has started the program. The step of determining whether the display condition is met, and in the step of creating the display data, the first identification information and the second identification information are identical, and the display condition is satisfied. If it is determined that the display data match, it is also possible to create the display data.
- the data for displaying the predetermined information described in the program is encrypted by using the first identification information as a key, and the display data is created.
- the display data may be created by decrypting the encrypted data for displaying the predetermined information using the second identification information as a key.
- the first invention determines the right to display information in computer units, it is determined in user units.
- identification information such as a user ID used when logging in to a computer is described in a program for displaying information, and compared with the identification information of the user who started the program.
- the third invention in addition to the condition that the identification information such as the user ID is matched, it is possible to set the conditions such as the display time limit and the number of times of display of the information, for example. Similar to the first invention, it is also possible to reduce the possibility of unauthorized viewing of information by three parties.
- the information is encrypted using identification information such as a user ID as a key, and the identification information of the user who executes the operation to display the information is set to be decrypted using the key.
- identification information such as a user ID as a key
- the data to be encrypted is preferably the data of the variable part for displaying predetermined information in the information display program, but it is preferable to The part of the program may also be a part of the program.
- a fourth invention for solving the problems relating to the present invention is a program for displaying predetermined information on a computer, wherein the start of the program is the first start on the computer that has started the program. Step of determining whether or not the program is executed, and if the activation of the program is the first activation, the computer acquires the first identification information on the user who operates the computer; Writing the first identification information as an identification key of the user authorized to display the predetermined information, and storing in the computer a program in which the first identification information is written; The data for displaying the predetermined information is read out to a display or printer connected to the computer. Creating the display data for output, and reading out the first identification information from the program to the computer when the program is launched for the second and subsequent times.
- This information display program is characterized in that
- a display condition for displaying the predetermined information is described in the program, and the display condition is read out to a computer which has started the program.
- the display data may be created when it is determined that the information matches and the display condition is met.
- the computer in the case where the activation of the program is an initial activation, is caused to execute a step of encrypting data for displaying the predetermined information described in the program using the first identification information as a key, and the program is started for the second and subsequent times.
- the display data is created, the display data is created by decrypting the encrypted data for displaying the predetermined information with the second identification information. It may be
- the third invention it is necessary for the creator of the program to know the identification information such as the user ID of the other party who transmits the information.
- identification information of the transmission destination is required. Even in the case where it is unknown, it is possible to exert the same effect as the third invention. That is, in the fourth invention, when the other party who receives the program performs the start operation for the first time, identification information such as the user ID of the computer operator is acquired and written in the program. At the time of the second and subsequent startups, it is set that the process of displaying information is executed after confirming that the computer is permitted to display the information in comparison with the identification information of the user who operates the computer that started the program. By doing this, it is possible to prevent unauthorized persons from viewing illegal information by unauthorized copying.
- setting of display conditions such as display deadline and number of display for information display, and information can be encrypted using identification information such as user ID as a key.
- identification information such as user ID as a key.
- the information display program according to the first to fourth inventions can create the information display program in a simple procedure on the program creation side. It can be configured as a creation program and creation device of an information display program.
- the creation program of the information display program corresponding to the first invention is a creation program for creating the information display program for displaying predetermined information on the computer, and the first computer A step of accepting selection of a file including predetermined information to be displayed by the information display program, a step of acquiring data for displaying the predetermined information from the file, and a display of the predetermined information Receiving the first identification information on the selected computer, at least the first identification information, data for displaying the predetermined information, and data and program including a viewer program for displaying the predetermined information To create the information display program for displaying the predetermined information, and the information display program executes the information display on the second computer that has started the information display program.
- Reading the first identification information from a program Reading the first identification information from a program, acquiring second identification information about the second computer, and comparing the first identification information with the second identification information. If the first identification information and the second identification information match, the predetermined information is selected from the information display program.
- a program for creating an information display program comprising the steps of reading out data for display and creating display data for output to a display or a printer connected to the computer.
- the information display program creation program corresponding to the first aspect of the invention, display conditions for displaying the predetermined information are described in the information display program, and the information display program Causing the started computer to execute the steps of reading the display condition and determining whether the display condition is met, and in the step of creating the display data, the first identification information and It is also possible to create the display data when it is determined that the second identification information matches and the display condition is met.
- Data for displaying the predetermined information described in the information display program is encrypted by using the first identification information as a key, and in the step of creating the display data, the encrypted predetermined information is generated.
- the display data may be created by decrypting data for displaying the information of the second information using the second identification information as a key.
- the information display program creation program corresponding to the second aspect of the invention is a creation program for creating an information display program for displaying predetermined information on a computer, the first computer comprising: A step of receiving a selection of a file including predetermined information to be displayed by the information display program, a step of acquiring data for displaying the predetermined information from the file, and displaying at least the predetermined information Combining the data for displaying the predetermined information, the data including the viewer program for displaying the predetermined information, and the program, and creating an information display program for displaying the predetermined information;
- the information display program causes the second computer that has started the information display program to execute a step of determining whether the start of the information display program is the first start, and the information display program is started.
- the computer is permitted to obtain the first identification information on the computer, and the information display program is permitted to display the predetermined information on the first identification information. And a program in which the first identification information is written is stored in the computer. Performing a step of reading data for displaying the predetermined information from the information display program and creating display data for output to a display or a printer connected to the computer; And reading out the first identification information from the information display program and acquiring second identification information on the computer, when the information display program is activated for the second time and thereafter.
- the information display program for creating a program characterized in that to execute the steps of creating over data, the.
- a display condition for displaying the predetermined information is described in the information display program, and a computer having the information display program activated.
- the step of creating when it is determined that the display condition is met, the display data is created, and when the information display program is launched for the second time or later, the display data is created.
- the display data may be created by decoding the second identification information as a key.
- a creation program of an information display program corresponding to the third invention is a creation program for creating an information display program for displaying predetermined information on a computer, the first computer comprising: A step of receiving a selection of a file including predetermined information to be displayed by the information display program, a step of acquiring data for displaying the predetermined information from the file, and a step of displaying the predetermined information being permitted. Combining data and a program including a step of receiving first identification information about a user, at least the first identification information, data for displaying the predetermined information, and a viewer program for displaying the predetermined information Creating an information display program for displaying the predetermined information.
- the information display program reads out the first identification information from the information display program to a second computer that has started the information display program, and a second computer related to a user who operates the second computer.
- the step of acquiring the identification information of 2 the step of comparing the first identification information and the second identification information, and when the first identification information and the second identification information match, Reading data for displaying the predetermined information from the information display program and creating display data for output to a display or a printer connected to the computer. It is a creation program of the information display program.
- the information display program creation program corresponding to the third invention, display conditions for displaying the predetermined information are described in the information display program, and the information display program Causing the started computer to execute the steps of reading the display condition and determining whether the display condition is met,
- the step of creating data it is characterized in that the display data is created when it is determined that the first identification information and the second identification information match, and the display condition is met. You can also.
- Data for displaying the predetermined information described in the information display program is encrypted by using the first identification information as a key, and in the step of creating the display data, the encrypted predetermined information is generated.
- the display data may be created by decrypting data for displaying the information of the second information using the second identification information as a key.
- a creation program of an information display program corresponding to a fourth aspect of the invention is a creation program for creating an information display program for displaying predetermined information on a computer, and the information display program according to the first computer For receiving a selection of a file containing predetermined information to be displayed, obtaining data for displaying the predetermined information from the file, and data for displaying at least the predetermined information, Combining data and a program including a viewer program for displaying predetermined information to create an information display program for displaying the predetermined information, and the information display program The information display program on a second computer that has started the information display program The step of determining whether or not the start is the first start is executed, and when the start of the information display program is the first start, the first operation related to the user who operates the computer is performed on the computer.
- the computer Reading the first identification information from the information display program, acquiring second identification information related to a user operating the computer, the first identification information and the second identification information. If the first identification information and the second identification information match, the step of comparing Reading out data for displaying the predetermined information from the information display program and creating display data for output to a display or a printer connected to the computer. It is a creation program of display program.
- the information display program creation program display conditions for displaying the predetermined information are described in the information display program, and the information display program
- the step of reading the display condition and the step of determining whether the display condition is met are executed by the started computer, and when the start of the information display program is the first start, the step of reading the display condition is performed.
- the step of creating display data the display data is created when it is determined that the display condition is met, and when the information display program is launched for the second time or later, the display data is created.
- the display data is created when it is determined that the first identification information and the second identification information match, and the display condition is met. It may also be characterized in that.
- the start of the information display program is the first start
- the step of encrypting is executed and the start of the information display program is the second or subsequent start
- the step of creating the display data data for displaying the encrypted predetermined information is displayed.
- the display data may be created by decrypting the second identification information as a key.
- An apparatus for creating an information display program is a creation apparatus for creating an information display program for displaying predetermined information on a computer, and the information display program displays the information display program.
- the present invention relates to a file selection accepting means for accepting selection of a file including predetermined information, a data acquiring means for acquiring data for displaying the predetermined information from the file, and a computer permitted to display the predetermined information.
- Identification information receiving means for receiving first identification information, data including at least the first identification information, data for displaying the predetermined information, and a viewer program for displaying the predetermined information; Combine programs to make the predetermined information The information display program reading out the first identification information from the information display program to a computer that has started the information display program.
- a step of obtaining second identification information on the second computer a step of comparing the first identification information and the second identification information, the first identification information and the second identification information If the two match, the data display program reads data for displaying the predetermined information and creates display data for output to a display or a printer connected to the computer. It is an apparatus for creating an information display program characterized by the above.
- display conditions for displaying the predetermined information are described in the information display program, and the information display program is activated.
- the display data may be created when it is determined that the identification information of the two matches, and the display condition is met.
- the data for displaying the predetermined information described in the information display program is encrypted using the first identification information as a key, and in the step of creating the display data, the encrypted predetermined information is generated.
- the display data may be created by decrypting data for displaying information using the second identification information as a key.
- An apparatus for creating an information display program is a creation apparatus for creating an information display program for displaying predetermined information on a computer, and the information display program displays the information display program.
- File selection accepting means for accepting selection of a file including predetermined information
- data acquiring means for acquiring data for displaying the predetermined information from the file, data for displaying at least the predetermined information
- Program creation means for combining data including a viewer program for displaying the predetermined information and the program to create an information display program for displaying the predetermined information
- the display program is the information display program Causing the computer that has started the RAM to execute the step of determining whether the start of the information display program is the first start, and if the start of the information display program is the first start, the computer Acquiring the first identification information related to the computer, and writing the first identification information to the information display program as an identification key of the computer permitted to display the predetermined information, the first identification information Storing in the computer a program in which the data has been written, and reading out data for displaying the predetermined
- Creating and executing the information display program twice And reading out the first identification information from the information display program in the case of starting after the eye, acquiring the second identification information about the computer, and Data for displaying the predetermined information from the information display program when the first identification information and the second identification information match, and the step of comparing the second identification information with the second identification information. And a step of creating display data to be read out and output to a computer connected to the computer.
- the information display program creation apparatus In the information display program creation apparatus according to the second aspect of the present invention, display conditions for displaying the predetermined information are described in the information display program, and the computer that has started the information display program is described. Reading the display condition, and determining whether the display condition is met, and when the information display program is activated for the first time, the display data is output. In the creating step, the display data is created when it is determined that the display condition is met, and when the information display program is launched for the second time and thereafter, the display data is created in the step. The display data is generated when it is determined that the first identification information and the second identification information match, and the display condition is met. It can also be done.
- An apparatus for creating an information display program is a creation apparatus for creating an information display program for displaying predetermined information on a computer, and the information display program displays the information display program.
- a file selection receiving unit for receiving a selection of a file including predetermined information
- a data acquisition unit for acquiring data for displaying the predetermined information from the file
- Identification information receiving means for receiving related first identification information, at least the first identification information, data for displaying the predetermined information, data and program including a viewer program for displaying the predetermined information
- Program creation means for creating an information display program for displaying the predetermined information by combining
- the information display program reads out the first identification information from the information display program to a computer that has started the information display program, and a second operation related to a user who operates the second computer.
- display conditions for displaying the predetermined information are described in the information display program, and the information display program is activated.
- the display data may be created when it is determined that the identification information of the two matches, and the display condition is met.
- data for displaying the encrypted predetermined information is used as the first data.
- the present invention may be characterized in that the display data is generated by decrypting the identification information of No. 2 as a key, and an apparatus for generating an information display program corresponding to the second invention is an information display for displaying predetermined information on a computer.
- a creation device for creating a program which receives a selection of a file including predetermined information to be displayed by the information display program, file selection accepting means, and data for displaying the predetermined information from the file
- a program creating unit for creating an information display program, the information display program including: The computer which has started the information display program is caused to execute a step of determining whether the start of the information display program is the first start, and when the start of the information display program is the first start, Acquiring, on the computer, first identification information on a user who operates the computer; and an identification key of a user whose display of the
- the computer reads the first identification information from the information display program, and acquires second identification information on a user who operates the computer.
- the step of comparing the first identification information and the second identification information, and when the first identification information and the second identification information match, the information display program Reading out data for displaying information of the information and creating display data for outputting to a display or a printer connected to the computer. is there.
- display conditions for displaying the predetermined information are described in the information display program, and the information display program is activated.
- the step of creating display data when it is determined that the display condition is met, the display data is created, and when the information display program is activated for the second time and thereafter, the display data is generated. Creating the display data when it is determined in the step that the first identification information and the second identification information match and the display condition is met. It is also a feature and the child.
- the step of creating the display data is executed when the information display program is started for the second time or later, the data for displaying the encrypted predetermined information is displayed.
- the display data may be created by decoding the second identification information as a key.
- an information display program capable of displaying information can be transmitted only when a specific terminal or a specific user operates.
- the present invention is particularly suitable as means for safely transmitting files in a simple procedure, in management of files for business use etc., which are created on the PC of each person on a daily basis and frequently sent and received.
- FIG. 1 is a view showing an example of a use environment of a network in which an information display program according to the present invention is useful.
- FIG. 2 is a block diagram showing a configuration of a sender terminal that transmits the information display program according to the present invention and a receiver terminal that receives the information display program.
- FIGS. 3 and 4 are diagrams showing a flow of creating and transmitting an information display program in the first embodiment of the present invention.
- FIG. 5 and FIG. 6 are diagrams showing a flow of creating and transmitting an information display program in the second embodiment of the present invention.
- FIG. 7 is a flow chart showing a flow of creating an information display program at the sender side according to the first embodiment of the present invention.
- FIG. 8 is a flowchart showing a flow of displaying an information display program on the receiver side in the first embodiment of the present invention.
- FIG. 9 is a flowchart showing a flow of creating an information display program on the sender side in the second embodiment of the present invention.
- FIG. 10 is a flowchart showing a flow of displaying an information display program for the first time on the receiver side in the second embodiment of the present invention.
- FIG. 11 is a flow chart showing a flow of displaying an information display program on the receiver side for the second and subsequent times in the second embodiment of the present invention.
- FIG. 12 is a diagram showing an example of environment variables to be referred to when identifying a user in the identification information in the information display program of the present invention.
- FIG. 1 shows an example of a network utilization environment in which an information display program according to the present invention is useful. If you want to transmit confidential information on a business task to another person in charge in your company, if the sender terminal is connected to the person in charge's terminal via a closed network such as a company LAN, for example, you have an access control function. Information can be transmitted securely by storing the file containing the confidential information in the file server.
- FIG. 2 shows an outline of the configuration of a sender terminal that transmits the information display program according to the present invention and a receiver terminal that receives the information display program.
- the sender terminal 10 and the receiver terminal 20 are not particularly limited as long as they usually use a personal computer. Both terminals are capable of program transmission / reception and arithmetic processing.
- the sender terminal 10 includes a CPU 11, a RAM 12, a ROM 13, an HDD 14, and a NIC (network interface card) 15, and the HDD 14 is a display for creating an information display program according to the present invention.
- Program creation program 30 is stored. Data are input to the sender terminal 10 from an input device 16 such as a keyboard and a mouse, and calculation results are output to an output device 17 such as a display or a printer.
- an input device 16 such as a keyboard and a mouse
- calculation results are output to an output device 17 such as a display or a printer.
- various basic programs for hardware control such as input control and output control stored in the ROM 13 are activated, and the RAMI 2 is executed.
- the CPU 11 performs arithmetic processing while functioning as a work area of the application program.
- a program for document creation software and a spreadsheet software is stored in the HDD 14, and a sender who wants to transmit certain information starts these software, and the necessary information from the input device 16 is received.
- a sender who wants to transmit certain information starts these software, and the necessary information from the input device 16 is received.
- To create a document file etc. The created file is stored in H DD14.
- the display program creation program 30 is activated.
- the sender inputs a selection of a file to be transmitted from the input device 16
- the display program creation program 30 stored in the HDD 14 is read out to the RAMI 2 and the CPU 11 performs arithmetic processing to display the selected file.
- identification information such as a MAC address for identifying the receiver terminal 20 which is the other party is known
- the identification information is described as a display condition of the display program 31 in the display program.
- Work The created display program 31 is sent from the NIC 15 to the receiver terminal 20.
- the identification information for specifying the file display authority used here is not limited to the MAC address, and other information may be used as long as it can specify the other party's terminal such as an IP address or computer name. .
- the target to which the authority is set is not limited to the terminal unit, and the operator who operates the terminal may be designated to perform the authority setting.
- identification information for designating an operator a user ID or the like used when logging in to a terminal can be used.
- the receiver terminal 20 includes a CPU 21, a RAM 22, a ROM 23, an HDD 24, and a NIC 25. Data is input to the receiver terminal 20 from an input device 26 such as a keyboard and a mouse, and calculation results are output to an output device 27 such as a display or a printer. In order to execute predetermined processing by the application program stored in the HDD 24, various basic programs for hardware control such as input control and output control stored in the ROM 23 are started, and the RAM 22 is executed. The CPU 21 performs arithmetic processing while functioning as a work area of the application program.
- the display program 31 is received by the NIC 25 and the display program 31 is stored in the HDD 24.
- the display program 31 stored in the HDD 24 is read to the RAM 22 and the CPU 21 performs arithmetic processing to execute the program. Execute the process
- the identification information of the terminal permitted to view the file is described in the display program 31
- the MAC address is acquired from the NIC 25 and the MAC described in the display program 31 is obtained. Contrast with the address. If the two match, the program display process is continued to start the viewer, and the display screen of the information displayed on the file created by the sender is reproduced and displayed on the output device 27. On the other hand, if the two do not match, it is determined that the terminal specified by the sender is not operated by the other party, the display processing of the display program 31 is interrupted, and an unauthorized operator copies the display program 31 to another. It is possible to prevent browsing information on the terminal.
- the intermediate user ID of the environment variable stored in the RAM 22 or the HDD 24 is acquired, and the display program 31 is Contrast with the described user ID. If both match The program continues the program display process to start the viewer, reproduces the display screen of the information displayed in the file created by the sender, and displays it on the output device 27. On the other hand, if the two do not match, it is determined that the sender is not the designated operator, and the display processing of the display program 31 is interrupted, and the unauthorized operator copies the display program 31 to another terminal. It is possible to prevent browsing information.
- FIG. 12 shows an example of environment variables referred to in this case.
- Environment variables define the attributes and settings of the computer, and since information related to the user ID when logging in to a computer is also usually stored as part of the environment variables, it is possible to use the user ID By acquiring the data stored in the item, it is possible to identify the user ID of the user who is currently operating the computer.
- the target for acquiring the user ID is not limited to environment variables. Note that although the computer name is described as one of the environment variables in FIG. 12, when this data is identified using the key, the party permitted to display is set not on an operator basis but on a terminal basis. It will be done.
- the writing process to the program for describing the identification information of the terminal is performed at the first activation. . If the MAC address is used as the identification information, the MAC address is acquired from the NIC 25, and the MAC address is described in the header of the display program 31 as the display condition and stored in the HDD 24. If a user ID is used for identification information, acquire the user ID from the environment variable and execute the same process. Further, the program display processing is continued to start the viewer, and the display screen of the information displayed on the file created by the sender is reproduced and displayed on the output device 27.
- the MAC address is acquired from the NIC 25, and the MAC address described in the display program 31 read out to the RAM 22 is compared with the MAC address.
- the user ID is obtained from the environment variable and compared with the user ID described in the display program 31 read out to the RAM 22. If the two match, the program display processing is continued to start the viewer, and the information displayed on the file created by the sender is reproduced and displayed on the output device 27. On the other hand, if the two do not match, it is determined that the terminal operated by the other party designated by the sender is not (or not the designated user).
- the display processing of the display program 31 is interrupted, and it is possible to prevent the unauthorized operator from copying the display program 31 and viewing information at another terminal or the unauthorized operator from displaying the information.
- FIGS. 3 and 4 show an outline of a flow of creating and transmitting an information display program (display program 31) in the first embodiment of the present invention
- FIG. 3 shows information using a general-purpose viewer
- FIG. 4 shows the case of creating an information display program using a viewer corresponding to the file format of the file created at the time of input.
- identification information of a terminal on the receiver side specifically a MAC address
- Other information for specifying a terminal such as an IP address is used as identification information.
- identification information such as user ID to specify the operator, the same applies to the processing flow of the computer.
- the flow of creating the information display program (display program 31) is as shown in the flowchart of FIG.
- a sender who wants to transmit secret information that he / she wants to view only to a certain party creates a transmission file 35 for conveying the secret information using document creation software or spreadsheet software.
- the sender activates the display program creation program 30 to specify the transmission file 35 to be transmitted (S01).
- the display program creation program 30 is provided with one type of module in FIG. 3 and a plurality of types of modules in FIG. 4 in order to create the display program 31.
- the viewer 33 in FIG. 3 is a general-purpose viewer that can support multiple file formats, and this pattern uses the viewer 33 for any file format, unless the transmission file 35 is an incompatible file format.
- a display program 31 is created.
- the viewer 331 etc. in FIG. 4 is a dedicated viewer corresponding to a specific file format, and in this pattern, the display program 31 is created by selecting the viewer 331 corresponding to the file format of the transmission file 35 .
- Viewers may include general-purpose ones, and general-purpose viewers may be used if corresponding dedicated viewers do not exist.
- the flow chart of FIG. 7 corresponds to the pattern of FIG. Identified send file 3 5 reads the file extension to specify the file format of the transmission file 35 in order to create the display program 31 using the optimum viewer (S02).
- the method of specifying the file format is not limited to the reading of the extension, and it may be determined from the data near the beginning of the file or the whole file. Subsequently, it is checked whether a dedicated viewer corresponding to the extension is provided (S03), and if there is a dedicated viewer, the corresponding viewer is acquired (S04). If there is no corresponding dedicated viewer, a general-purpose viewer is acquired (S05). In the case of the pattern shown in FIG. 3, a general-purpose viewer is acquired in this process regardless of the file format. Also, in any of the patterns shown in FIGS. 3 and 4, if the file format of the specified transmission file 35 is a format that can not be handled by the display program creation program 30 in the first place, an error indicating that the format is not supported. A message is displayed.
- the display conditions always include identification information of the terminal such as the MAC address 32 for identifying the receiver terminal 20 of the other party.
- the identification information to be used may be an input from the transmitter, but if the address book such as the MAC address 32 of the transmission destination is stored in the transmission destination address table 19 and the transmission destination is designated. It may be read from the transmission destination address table 19.
- Other display conditions may include an expiration date for permitting viewing of information, and a limit on the number of activations for limiting the number of viewing of information. Note that these other display conditions do not have to be set.
- a display program 31 for browsing only is created (S07). Since the transmission file created by the sender 35 has a data format dependent on the application such as the document creation software for which the file was created, the function part and the variable part of the application are identified among them, Display data 34 is created from the variable part which the sender entered or selected when creating the file. Such conversion of data is performed according to the conversion table 18 defined for each application. At least a part of the created display program 31 is encrypted using the MAC address 32 as a key (S 08).
- the data to be displayed may also include other parts including the viewer 33 except for the part used to activate the force display program 31 for which the display data 34 is a target. Les.
- the display program 31 can only be decrypted at the terminal of the MAC address 32.
- the display program 31 created in this manner is a program in which display conditions including the MAC address 32, the viewer 33 (331), and the display data 34 are integrated and combined, so the corresponding application on the receiving side It is possible to start even if you do not have.
- the display program 31 is created as an executable binary file, transmitted to the receiver terminal 20, and stored so that the program can be started without depending on the application of the receiving computer. Note that in this example, the power of using the MAC address as the identification information of the terminal If other individual terminals can be identified, it is also possible to use other information such as an IP address.
- the display program 31 is transmitted from the sender terminal 10 in the form of an attached file of an electronic mail, and when the receiver terminal 20 receives an electronic mail, the display program 31 attached as an attached file is received Then, it is stored in a predetermined area of the HDD 24.
- the display program 31 is activated according to the following flow.
- the flow of activating and displaying the information display program is as shown in the flowchart of FIG.
- the display terminal 31 activates the display program 31 by selecting an activation icon or the like on the receiver terminal 20 (Sl 1).
- the display program 31 first acquires the MAC address 32 of the receiver terminal 20 from the NIC 25 (S12).
- the MAC address 32 is compared with the MAC address 32 described as the display condition in the display program 31 (S13). If the terminal from which the display program 31 has been started is the legitimate receiver terminal 20 specified by the sender, the MAC address 32 has a matching power S, and the display program 31 is illegally copied and activated by another receiver terminal 40. If the MAC address 41 to be acquired does not match the MAC address 32, an error message is displayed (S 18). There is no display.
- the confirmation of the expiration date may be made by comparing the date of the timer in the receiver terminal 20 with the expiration date set in the display program 31.
- the number of activations may be confirmed by writing a flag indicating the number of activations in the display program 31 at each activation. If the display conditions are not met, an error message will be displayed (S 18) and no information will be displayed.
- decryption of the encrypted part of the display program 31 is performed with the MAC address 32 as the key (S 15).
- the module of the viewer 33 included in the display program 31 is read out (S16), and the display data 34 is displayed on the output device 27 of the receiver terminal 20 in the format of the viewer 33 (S17).
- FIG. 5 and FIG. 6 show an outline of a flow of creating and transmitting an information display program (display program 31) in the second embodiment of the present invention, and FIG. 5 is displayed using a general-purpose viewer.
- FIG. 6 is a case where the display program 31 is created using a viewer corresponding to the file format of the file created at the time of input.
- the flow of creating the information display program (display program 31) is as shown in the flowchart of FIG.
- a sender who wants to transmit secret information that he / she wants to view only to a certain party creates a transmission file 35 for conveying the secret information using document creation software or spreadsheet software.
- the sender activates the display program creation program 30, and specifies the transmission file 35 to be transmitted (S21).
- the display program creation program 30 is provided with one type of module in FIG. 5 and a plurality of types of modules in FIG. 6 in order to create the display program 31.
- Viewer 33 in FIG. 5 is a general-purpose viewer that can support multiple file formats, and this pattern uses viewer 33 for any file format, unless transmission file 35 is an incompatible file format.
- a display program 31 is created.
- the viewer 331 etc. in FIG. 6 is a dedicated viewer corresponding to a specific file format, and this pattern
- the display program 31 is created by selecting the viewer 331 corresponding to the file format of the transmission file 35.
- Viewers may include general-purpose ones, and general-purpose viewers may be used if corresponding dedicated viewers do not exist.
- the flowchart of FIG. 9 corresponds to the pattern of FIG.
- the specified transmission file 35 reads the file extension to specify the file format of the transmission file 35 in order to create the display program 31 using the optimum viewer (S22). It is checked whether a dedicated viewer corresponding to the extension is provided (S23), and if there is a dedicated viewer, the corresponding viewer is acquired (S24). If there is no corresponding dedicated viewer, a generic viewer is acquired (S25). In the case of the pattern shown in FIG. 5, a general-purpose viewer is acquired in this process regardless of the file format. Also, in either of the patterns in FIGS. 5 and 6, if the file format of the specified transmission file 35 is a format that the display program creation program 30 can not cope with in the first place, an error indicating that the format is not supported is displayed. A message is displayed.
- the display condition does not include terminal identification information such as the MAC address 32 for identifying the recipient's terminal 20 of the other party. That is, in the second embodiment, it is possible to cope with the case where the MAC address or the like of the other party's computer is unknown.
- display conditions an expiration date for permitting viewing of information, a limit on the number of activations for limiting the number of viewing of information, and the like are set. The display conditions may not necessarily be set.
- the display conditions such as the expiration date, the selected viewer 33 (331), and the display data 34 necessary for displaying information in the transmission file 35 are combined to A dedicated display program 31 is created (S27). Since the transmission file 35 created by the sender has a data format dependent on the application such as the document creation software for which the file was created, the function part and the variable part of the application are identified from this, and Display data 34 is created from the variable part which the sender entered or selected when creating the file. Such conversion of data is performed according to the conversion table 18 defined for each application.
- the display program 31 created in this manner is a program in which display conditions such as expiration date, viewer 33 (333), and display data 34 are integrated and combined, the corresponding application on the receiving side is Even if it is not equipped, it is possible to start.
- the display program 31 is created as an executable binary file, sent to the receiver terminal 20, and stored so as to be able to start up without depending on the application of the receiving computer.
- the display program 31 is transmitted from the sender terminal 10 in the form of an attached file of an electronic mail, and when the receiver terminal 20 receives an electronic mail, the display program 31 attached as an attached file is received Then, it is stored in a predetermined area of the HDD 24.
- the display program 31 is activated according to the following flow.
- the flow of activating and displaying the information display program is as shown in the flowcharts of FIG. 10 and FIG.
- the start-up icon or the like is selected on the receiver terminal 20, and the display program 31 is started (S31).
- the display program 31 is started (S31).
- the determination method is not particularly limited.
- the display program 31 acquires the MAC address 32 of the receiver terminal 20 from the NIC 25 (S 33).
- the acquired MAC address 32 is written to the display program 31 as a condition of a terminal that can be displayed by the display program 31 (S 34), and at least a part of data of the display program 31 is encrypted using the acquired MAC address 32 as a key ( S35).
- the display program 31 in which the MAC address 32 is written and at least a part of the data is encoded is stored in the HDD 24 of the receiver terminal 20 (S 36). Further, the module of the viewer 33 included in the display program 31 is read (S37), and the display data 34 is displayed on the output device 27 of the receiver terminal 20 in the format of the viewer 33 (S38).
- the display program 31 first obtains the MAC address 32 of the receiver terminal 20 from the NIC 25 (S39). Next, the MAC address 32 is compared with the MAC address 32 described as the display condition in the display program 31 (S40). In the display program 31, the MAC address 32 is described as a display condition according to the flow of FIG. 10 at the time of the first activation.
- the MAC address 32 is a copy of the matching power display program 31 illegally and activated by another receiver terminal 40 In this case, the acquired MAC address 41 does not match the MAC address 32, so an error message is displayed (S45) and the information is not displayed.
- the confirmation of the expiration date may be made by comparing the date of the timer in the receiver terminal 20 with the expiration date set in the display program 31.
- the number of activations may be confirmed by writing a flag indicating the number of activations in the display program 31 at each activation. If the display conditions are not met, an error message will be displayed (S45) and no information will be displayed.
- decryption of the encrypted part of the display program 31 is performed with the MAC address 32 as the key (S 42).
- At least a part of the data of the display program 31 is encrypted by using the MAC address 32 as a key according to the flow of FIG.
- the module of the viewer 33 included in the display program 31 is read out (S43), and the display data 34 is displayed on the output device 27 of the receiver terminal 20 in the format of the viewer 33 (S44).
- the identification information is identified on the sender side at the time of file creation, and in the second embodiment, the identification information on the first time the file is opened on the recipient side.
- identification of identification information is limited to a method using only one of them, it is possible to use both patterns together using two or more pieces of identification information.
- the first method The sender identifies the MAC address using the embodiment And the user ID of the user who read the file at the receiver side using the second embodiment (in addition to the user ID). If you set the key to the key, you may set it up.
- the identification information is Determine whether it is necessary to embed additional identification information by referring to the relevant information described in the program. That is, in the flowchart of FIG. 10, it is necessary to determine whether all necessary identification information has been identified before the step of S33, and if there is one that has not been identified, it should be identified. It will progress to the step of S34 or less which acquires identification information.
- FIG. 1 is a view showing an example of a use environment of a network in which an information display program according to the present invention is useful.
- FIG. 2 is a block diagram showing a configuration of a sender terminal transmitting an information display program according to the present invention and a receiver terminal receiving an information display program.
- FIG. 3 is a first diagram showing a flow of creating and transmitting an information display program in the first embodiment of the present invention.
- FIG. 4 is a second diagram showing a flow of creating and transmitting an information display program in the first embodiment of the present invention.
- FIG. 5 is a first diagram showing a flow for creating and transmitting an information display program in the second embodiment of the present invention.
- FIG. 6 is a second diagram showing a flow of creating and transmitting an information display program in the second embodiment of the present invention.
- FIG. 7 is a flowchart showing a flow of creating an information display program at the sender side in the first embodiment of the present invention.
- FIG. 8 is a flowchart showing a flow of displaying an information display program on the receiver side in the first embodiment of the present invention.
- a sender creates an information display program Is a flow chart showing the flow.
- the information display program concerning the present invention is a figure showing an example of the environment variable referred when identifying a user to identification information.
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JP2005518103A JPWO2006022011A1 (ja) | 2004-08-26 | 2004-08-26 | 情報表示プログラム、情報表示プログラムの作成プログラム及び情報表示プログラムの作成装置 |
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JP2008197746A (ja) * | 2007-02-08 | 2008-08-28 | Canon Electronics Inc | ファイル共有システム、ファイル共有方法、サーバ及びコンピュータプログラム |
JP2008226081A (ja) * | 2007-03-15 | 2008-09-25 | Seiko Epson Corp | 情報処理装置、文書表示システムおよびプログラム |
JP2011101203A (ja) * | 2009-11-06 | 2011-05-19 | Canon Marketing Japan Inc | 画像形成装置、情報処理システムとその処理方法およびプログラム |
JP2011124933A (ja) * | 2009-12-14 | 2011-06-23 | Canon It Solutions Inc | 画像処理システム、及びその制御方法、プログラム、プログラムを記録した記録媒体 |
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JP2012252535A (ja) * | 2011-06-03 | 2012-12-20 | Dainippon Printing Co Ltd | コンテンツ管理方法、装置、プログラム |
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