WO2004109521A1 - Programme de prevention de copie, support lisible par la machine contenant le programme, et systeme de prevention de copie - Google Patents
Programme de prevention de copie, support lisible par la machine contenant le programme, et systeme de prevention de copie Download PDFInfo
- Publication number
- WO2004109521A1 WO2004109521A1 PCT/JP2004/007822 JP2004007822W WO2004109521A1 WO 2004109521 A1 WO2004109521 A1 WO 2004109521A1 JP 2004007822 W JP2004007822 W JP 2004007822W WO 2004109521 A1 WO2004109521 A1 WO 2004109521A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- identification information
- recording medium
- recording
- computer
- Prior art date
Links
- 230000002265 prevention Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims description 34
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000013500 data storage Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- 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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00838—Preventing unauthorised reproduction
- H04N1/0084—Determining the necessity for prevention
- H04N1/00843—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
Definitions
- the present invention relates to a copy protection program, a computer-readable recording medium storing the program, and a copy protection system.
- the invention of the present application is intended to print or save a data file recorded on a regular recording medium that can not only be displayed or the like when a data file recorded on the regular recording medium is duplicated on another recording medium.
- the present invention relates to a copy protection program for restricting the functions of the above, a recording medium storing the copy protection program, and a copy protection system for causing a computer to execute the copy protection program.
- This duplication prevention application program records the medium type of a legitimate recording medium in advance, and when executing an application program such as a game used by a user, the application program is recorded prior to the execution. It is checked whether the medium type of the specified recording medium matches the medium type of the legitimate recording medium, and if not, the application program is not executed. In this way, duplication of application programs is substantially prevented (see, for example, Patent Document 1).
- Patent Document 1 International Publication WO 02Z082280
- the data recorded on the recording medium is a data file such as a document data file or an image data file which is not an application program such as a game
- the application program corresponding to the data file is executed. (Start) and display it on the display. Therefore, some or all of the data can be copied to another storage medium such as a hard disk (HDD) or flexible disk (FD) by using the functions such as storage and copying originally provided in the application program. Is possible. Similarly, large quantities can be printed on paper media using the printing function.
- HDD hard disk
- FD flexible disk
- the present invention has been made in view of a powerful problem, and does not require a complicated operation such as inputting a password for an authorized user, and furthermore, prevents unauthorized copying of a data file. It is an object of the present invention to provide a copy protection program and a recording medium on which the copy protection program is recorded, and to provide a copy protection system that executes the copy protection program.
- a copy protection program includes the data file Encrypted data recording means for recording encrypted data obtained by encrypting a file, genuine identification information recording means for recording genuine identification information provided in the authorized recording medium, and the encrypted data.
- Determining means for determining whether or not the identification information of the recording medium matches the identification information recorded in the genuine identification information recording means; and if the two pieces of identification information match by the determining means,
- the computer is caused to function as execution restricting means for restricting execution of at least the function of saving or copying among the edited, printed, saved, and copied data.
- encrypted data recording means for recording encrypted data obtained by encrypting the data file
- genuine identification information recording means for recording genuine identification information provided in the genuine recording medium
- a determination means for determining whether or not the identification information of the recording medium on which the data is recorded matches the identification information recorded on the authentic identification information recording means; and two determination means by the determination means. If the identification information matches, the decryption means for decrypting the encrypted data recorded in the encrypted data recording means and the data decrypted by the decryption means are displayed on the display unit.
- the computer is provided with display means for displaying and execution restriction means for restricting at least execution of saving or copying among editing, saving, copying, and printing of the data displayed on the display unit. It may be made by prevention system.
- the data file can be displayed on a display unit such as a display only when the data file is recorded on a regular recording medium, and when the data file is duplicated on another recording medium, the data file can be displayed. Since it becomes impossible to display the data, only the user using the proper recording medium can view the data. In addition, the functions of editing, printing, saving, and copying the displayed data are restricted, so you can browse the data.You can save them on other recording media and copy them to other files (copy 'Pasting' is restricted, so that the contents of the data cannot be easily duplicated.
- the display means is provided to a computer in accordance with a data format of the data file.
- a function may be provided that activates an application program installed in advance and displays the decrypted data on a display unit.
- the execution restricting means monitors a process executed by one or both of the operating system and / or the application program installed in the computer in advance, and restricts the execution in advance. If a process is detected, a function for forcibly interrupting the process of the process may be provided so that only the contents of the data can be browsed.
- the execution restricting means monitors an event detected by one or both of the operating system and / or the application program pre-installed in the computer, and detects the event restricted in advance.
- a function for forcibly interrupting the processing of the event should be provided so that only the contents of the data can be browsed.
- the display means includes an application program for displaying the decrypted data, and has a function of causing a computer to activate the application program and display the decrypted data on a display unit.
- an application program for displaying data is not installed on the computer, only the contents of the data can be viewed.
- the genuine identification information includes at least type information of the recording medium
- the judging means stores the type information of the authentic recording medium stored in the genuine identification information storage means and the encryption information.
- a function may be provided for judging whether or not the type information of the recording medium on which the data is recorded matches.
- the anti-duplication program may be recorded on a computer-readable recording medium, and the recording medium may be provided to a user.
- a copy protection program, a computer-readable recording medium on which the copy protection program is recorded, and a copy protection system according to the present invention provide a copy protection program based on identification information provided on the recording medium. Is recorded, and whether the recording medium is a legitimate recording medium is determined and the data of the data file is displayed. The content cannot be displayed on the display. That is, it is possible to prevent unauthorized use due to duplication of data files.
- users of the data file can browse the data without knowing the data necessary to release the protection such as a password, and enter a password t. Not only do you need it !, but you can also solve the inconvenience of forgetting your password and making data inaccessible.
- the display means activates an application program pre-installed in the computer and displays the data content of the data file on the display unit, so that the application program for browsing the data file is recorded on the recording medium.
- a large number of anti-duplication programs can be recorded on a single recording medium where necessary.
- the execution restricting unit monitors a process executed by the operating system or an application program, or an event detected by the operating system or the application program, and executes a process or an event such as copying, printing, saving, or editing.
- a process or an event such as copying, printing, saving, or editing.
- the display means has an application program for displaying the decrypted data, the data can be displayed without difficulty even for a user who does not have the application installed on the computer.
- the type information of the recording medium is included as the identification information of the recording medium, the data cannot be displayed even if it is copied to another type of medium.
- the data cannot be displayed even if it is copied to another type of medium.
- an individual who cannot create many recording media at once with a copy-protection program can use an expensive device such as a CD-ROM. Equipped Therefore, duplication at the individual level can be easily prevented.
- FIG. 1 is a block diagram schematically illustrating a copy protection program and a recording medium on which the copy protection program is recorded.
- FIG. 2 is a block diagram schematically showing creation of a duplication prevention program.
- FIG. 5 is an explanatory diagram of an execution restriction unit.
- FIG. 4 (a) is an explanatory diagram when a copy protection program recorded on a regular recording medium is executed by a computer, and (b) is a copy protection program copied on another recording medium.
- FIG. 11 is an explanatory diagram when the processing is executed by a computer.
- FIG. 5 is a flowchart when a copy protection program is executed by a computer.
- FIG. 1 is a block diagram schematically showing a copy protection program and a computer-readable recording medium on which the copy protection program is recorded. Further, identification information 3 for identifying the recording medium 1 is provided.
- Various types of recording media 1 such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DV-RAM, DVD-RW, DVD + RW, MO, MD, HDD, FD, etc. Possible forces of the recording medium
- the recording medium is not limited to these, and another recording medium may be used.
- the anti-duplication program 2 includes an encrypted data storage unit 4, a true identification information recording unit 5, a determination unit 6, a decryption unit 7, a display unit 8, and an execution restriction unit 9, This is a program that causes a computer to function.
- the computer and the recording medium 1 on which the duplication prevention program 2 is recorded and the duplication prevention program 2 cooperate to prevent duplication of data files.
- the encrypted data storage means 4 encrypts the data file 11 by the encryption means 13 provided in the computer (copy protection program creation system 12). And means for storing the encrypted data.
- the genuine identification information recording means 5 is a means for recording genuine identification information included in the regular (authentic) recording medium 1 input by the genuine identification information input means 17 (see FIG. 2) described later.
- the determination means 6 determines whether or not the identification information 3 of the recording medium 1 on which the encrypted data is recorded and the genuine identification information recorded in the genuine identification information recording means 5 match. This is a means for judging, and reads the identification information 3 provided on the recording medium 1 recording the copy protection program 2, compares the identification information 3 with the genuine identification information, and records the copy protection program 2.
- the decoding means 7 is configured to determine whether the two pieces of identification information match with each other by the determination means 6. This is a means for decrypting the encrypted data recorded in the encrypted data recording means 4.
- the display means 8 starts an application program (hereinafter, referred to as an application) 16 installed in the computer in advance in accordance with the data format (data type) of the data decoded by the decoding means 7, This is a means for displaying the decoded data of the data file on the display unit 10 such as a display. As shown in FIG.
- the execution restricting means 9 is installed in the operating system 15 (hereinafter, referred to as OS) installed in the computer C in advance, or is installed in the computer C in advance. Monitors the processes executed by the application 16 and sets in advance to limit functions such as copying (copying and pasting), printing, editing (inputting, deleting, changing), and saving data displayed on the display unit 10. This is a means to forcibly interrupt the detected process when it detects a process that is running.
- the execution restricting means 9 monitors events (event signals) corresponding to input means force input signals such as a keyboard and a mouse which are detected by these, and copies, prints, and prints. When an event (event signal) corresponding to a function such as editing, saving, etc. is detected, this is a means to forcibly interrupt the processing corresponding to the event (event signal).
- the data file 11 in the present invention is, for example, document data created by an application of a word processor, and in addition, image data, table data, spreadsheet format (CSV format) data, and the like. , HTML data, or data that combines them. Data that can be displayed using an application installed on a computer other than those described above.
- the display means 8 is provided with an application 16 (see FIG. 3) capable of displaying the decrypted data on a computer, the application 16 is activated to execute the decryption.
- the displayed data can also be displayed on the display unit 10. That is, if the application 16 is recorded on the recording medium 1 (display means 8), the decrypted data can be displayed only by activating the application 16. In such a case, it is not necessary to install the application 16 in advance on the computer. The data can be displayed even if the case 16 is not installed on the computer.
- a unique application 16 can be provided, and this unique application may limit these functions as an application having no functions such as copying, printing, saving, and editing.
- the display means 8 activates an application program pre-installed in a computer and displays the decrypted data on the display unit 10.
- the application program is stored in a recording medium. Since there is no need to record the data, many of the data file copy protection programs can be recorded on one recording medium.
- the identification information 3 included in the recording medium 1 is information for identifying the recording medium 1, and indicates computer-readable data or information recognizable by the computer. For example, type information indicating the type of recording medium such as a CD, DVD, or HDD, information on a manufacturer or product name of the recording medium, and unique information set for each recording medium. And the like. Also indicates information such as information that cannot be easily copied to other recording media. More specifically, in the case where the recording medium is a CD-R, since ATIP (Absolute Time In Pregroove) is provided, the presence / absence of ATIP and detailed information thereof are one of the identification information.
- ATIP Absolute.g., Absolute Time In Pregroove
- the recording medium is a DVD-ROM
- a BCA Band Cutting Area
- the presence / absence of the BCA and detailed information thereof are one of the identification information.
- the recording medium power CD-ROM since the above-mentioned ATIP is not provided, it is necessary to provide this ATIP, and to indicate that the recording medium type is CD as one of the identification information. Can be.
- the identification information includes the difference between the recording power at the disc-at-once and the recording power at the track-at-once.
- the computer may perform a defective area process for determining a defective area on the storage medium, and use the presence or absence of the defective area as part of the identification information. Note that information other than the above can be used as identification information. In the present invention, one of these pieces of information or information obtained by combining them is used as identification information. Next, a case where the duplication preventing program recorded on the regular recording medium 1 is executed by a computer will be described.
- the anti-duplication program 2 is recorded on a CD-ROMla which is a regular recording medium.
- This regular CD-ROMla is provided with information that the medium type is “CD-ROM” as identification information. In other words, it has information that the type of the recording medium is “CD” and does not have ATIP.
- the judging means 6 reads the identification information 3 provided in the CD-ROMla as a recording medium as shown in FIGS. 1, 4 (a) and 5. Sl). Also, the judging means 6 obtains the genuine identification information recorded in the genuine identification information recording means 5 (S2), compares the identification information 3 with the genuine identification information, and determines whether or not they are the same. Is determined (S3).
- the encrypted data stored in the encrypted data storage means 4 is read and decrypted (S4).
- the display means 8 determines the type of the decrypted data, activates an application corresponding to the data (S6), and displays the decrypted data file. The data content of is displayed on the display unit 10 (S7).
- the application corresponding to the data of the decrypted data file is the application in which the decrypted data (data file 11 (see FIG. 2)) was created or the decrypted data. Indicates an application that can be displayed. For example, if the decrypted data (data file 11) is image data, the application is an application capable of displaying the image data, and if it is document data, the application is an application capable of displaying the document data.
- the execution restricting unit 9 When the decrypted data is displayed on the display unit 10, as shown in FIG. 3, the execution restricting unit 9 generates a process executed by the application 16 or the OS 15, The detected event (event signal) is monitored (S8). Then, it is determined whether or not the process (event) detected by the execution restricting means 9 matches a process (event) whose execution is limited in advance such as editing, copying, printing, and saving ( S9).
- the execution restricting means 9 monitors a process or an event, it is necessary to distinguish the application 16 (see FIG. 3) started by the display means 8 from another running application.
- the application 16 started by the display means 8 from another running application.
- an option is set in the start command of the application 16, and when the start command is executed, the display means 8 is notified of data such as the process ID. Then, the notified process ID may be stored, and the process or event of the corresponding application 16 may be monitored.
- the display means 8 is set so that icons and menus (menu bar) for performing printing (printing), copying (copying / pasting), saving, editing (deletion, addition, and the like) are hidden.
- the application 16 may be controlled and started. In this way, it is possible to change the screen of an application that cannot only execute a specific function, and to make it possible for the user to perform operations that cannot be performed on the screen.
- the illegally copied CD-Rib is provided with information that the medium type is "CD-R" as identification information.
- the judging means 6 reads the identification information 3 provided in the CD-Rib as the recording medium. (Sl). Further, the determination means 6 acquires the genuine identification information recorded in the genuine identification information recording means 5 (S2), compares the identification information 3 with the genuine identification information, and determines whether or not they are the same. Is determined (S3). Since the genuine identification information and the identification information of the recording medium lb are not the same, the computer displays an error message dialog box, for example, ⁇ Normal media power has not been started '' (S5), and prompts the user. Call attention.
- data of a data file is read from a regular recording medium. Although it is possible to display it on the display unit, it is restricted so that functions such as copying, saving, printing, and editing cannot be performed, so some or all of the displayed data may be stored in other records. Cannot be saved or copied (replicated) on media.
- data file users can view data without knowing the data such as passwords, and do not have to perform the complicated task of entering passwords. The inconvenience of disappearing can also be eliminated.
- the anti-duplication program including the data file is illegally recorded from a regular recording medium to another recording medium, the data of the data file cannot be displayed, and the anti-duplication program itself Although data can be copied, it cannot be used for displaying data of the data file, etc., so that unauthorized use of the data file can be prevented. Further, since the data file provided in the copy protection program is encrypted, the data file cannot be displayed even if the copy protection program is temporarily copied.
- the copy protection program is not recorded on an authorized recording medium, and otherwise, the data in the data file cannot be browsed. Copying, saving, printing, editing, etc. are not allowed.
- the function is limited to browsing data even from a regular recording medium that cannot be used, so it is impossible to copy (copy and paste) the data and record it as another data file.
- the protection technology is optimal when the information is disclosed only to a specific person.
- the anti-duplication program 2 can be recorded on a computer-readable recording medium, and the recording medium can be distributed so that the data file cannot be used from other than a regular recording medium.
- recording data on a CD-ROM or DVD-ROM recording medium requires expensive equipment (equipment), and it is practically impossible for an individual to record data on such a recording medium. Since it is possible, if the regular recording medium is CD-ROM or DVD-ROM, Data duplication at the human level can be easily prevented.
- the anti-duplication program is executed by a computer, and the encryption recording means 4, the genuine identification information recording means 5, the determination means 6, the decryption means 7, the display means 8, the execution restriction means 9 are executed.
- the encryption recording means 4 the genuine identification information recording means 5, the determination means 6, the decryption means 7, the display means 8, the execution restriction means 9 are executed.
- duplication prevention system equipped with a data file duplication of data files can be prevented.
- the anti-duplication program creating system 12 includes an encryption unit 13, a genuine identification information input unit 17, and an anti-duplication program creating unit 14 in a computer.
- This is a system for creating the copy protection program 2 by encrypting a data file 11 that has not been copied.
- the encryption means 13 is means for encrypting the data file 11, and the encryption method is not particularly limited as long as it corresponds to the decryption method performed by the decryption means 7. .
- the genuine identification information input means 17 is a means for inputting the identification information 3 (see FIG. 1) provided on the regular recording medium 1 (la) for recording the copy protection program.
- the genuine identification information input means 17 can be used by a person to operate a computer to input identification information or to select and input the corresponding identification information.
- An identification information reading means (not shown) provided in the computer ), The computer can automatically read the identification information provided in the authorized recording medium 1 and the computer can automatically input the identification information to the genuine identification information input means 17.
- the anti-duplication program creating unit 14 Based on the encrypted data encrypted by the encryption unit 13 and the genuine identification information input by the genuine identification information input unit 17, the anti-duplication program creating unit 14 performs the encryption shown in FIG.
- a duplication preventing program 2 for causing a computer to function as the data recording means 4, the authenticity identification information recording means 5, the judgment means 6, the decoding means 7, the display means 8, and the execution restriction means 9 is created. Then, the anti-duplication program 2 created by the anti-duplication program creating system 12 is recorded on a regular recording medium by a recording method suitable for the recording medium.
- the recording medium is a CD-ROM, DVD-ROM, or the like
- a company that records the anti-duplication program on those recording media records the anti-duplication program
- a computer-readable recording in which the anti-duplication program is recorded Make a medium. If a general user such as SCD-R or DVD-R can easily record on the recording medium, the duplication prevention program can be recorded on a recording medium using an existing system.
- a computer-readable recording medium on which a copy protection program is recorded is prepared.
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Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005506795A JPWO2004109521A1 (ja) | 2003-06-06 | 2004-06-04 | 複製防止プログラム、そのプログラムが記録されたコンピュータ読み取り可能な記録媒体、及び複製防止システム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003162617 | 2003-06-06 | ||
JP2003-162617 | 2003-06-06 |
Publications (1)
Publication Number | Publication Date |
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WO2004109521A1 true WO2004109521A1 (fr) | 2004-12-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/007822 WO2004109521A1 (fr) | 2003-06-06 | 2004-06-04 | Programme de prevention de copie, support lisible par la machine contenant le programme, et systeme de prevention de copie |
Country Status (2)
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JP (1) | JPWO2004109521A1 (fr) |
WO (1) | WO2004109521A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009075793A (ja) * | 2007-09-20 | 2009-04-09 | Konica Minolta Business Technologies Inc | 情報処理装置、認証情報生成装置、記憶媒体、およびプログラム |
Citations (6)
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JPH09134330A (ja) * | 1995-11-07 | 1997-05-20 | Fujitsu Ltd | セキュリティ保護システム |
JPH1049986A (ja) * | 1996-08-05 | 1998-02-20 | Sony Corp | 記録媒体、記録又は再生装置、記録又は再生方法 |
JP2000311436A (ja) * | 1999-04-28 | 2000-11-07 | Hitachi Ltd | 再生装置 |
JP2002149297A (ja) * | 2000-08-31 | 2002-05-24 | Ffc:Kk | メニュー制御方法、抑制方法、記録媒体、およびプログラム |
WO2002082280A1 (fr) * | 2001-04-05 | 2002-10-17 | Ed-Contrive Inc. | Procede pour interdire l'execution de programme d'application de copie non-autorisee, son programme, son appareil d'enregistrement de programmes et son support d'enregistrement de programmes |
JP2003044297A (ja) * | 2000-11-20 | 2003-02-14 | Humming Heads Inc | コンピュータリソースの制御を行なう情報処理方法および装置、情報処理システム及びその制御方法並びに記憶媒体、プログラム |
-
2004
- 2004-06-04 JP JP2005506795A patent/JPWO2004109521A1/ja active Pending
- 2004-06-04 WO PCT/JP2004/007822 patent/WO2004109521A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09134330A (ja) * | 1995-11-07 | 1997-05-20 | Fujitsu Ltd | セキュリティ保護システム |
JPH1049986A (ja) * | 1996-08-05 | 1998-02-20 | Sony Corp | 記録媒体、記録又は再生装置、記録又は再生方法 |
JP2000311436A (ja) * | 1999-04-28 | 2000-11-07 | Hitachi Ltd | 再生装置 |
JP2002149297A (ja) * | 2000-08-31 | 2002-05-24 | Ffc:Kk | メニュー制御方法、抑制方法、記録媒体、およびプログラム |
JP2003044297A (ja) * | 2000-11-20 | 2003-02-14 | Humming Heads Inc | コンピュータリソースの制御を行なう情報処理方法および装置、情報処理システム及びその制御方法並びに記憶媒体、プログラム |
WO2002082280A1 (fr) * | 2001-04-05 | 2002-10-17 | Ed-Contrive Inc. | Procede pour interdire l'execution de programme d'application de copie non-autorisee, son programme, son appareil d'enregistrement de programmes et son support d'enregistrement de programmes |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009075793A (ja) * | 2007-09-20 | 2009-04-09 | Konica Minolta Business Technologies Inc | 情報処理装置、認証情報生成装置、記憶媒体、およびプログラム |
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JPWO2004109521A1 (ja) | 2006-07-20 |
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