Authenticity determination system, authenticity determination device, authenticity determination method and program

Abstract

To provide an authenticity determination system, an authenticity determination device, an authenticity determination method and a program capable of easily determining an authenticity of a duplication.SOLUTION: A cloud server 1 includes an authenticity determination part 114 that determines: whether first identification information, notified by a user as grasped from a portion corresponding to a second ground tint area of the duplication obtained by the user belonging to an administrative agency duplicating a printed matter, exists in the first identification information stored by a ground tint information storage part 131; and the authenticity of the duplication based on management identification information corresponding to the first identification information notified by the user stored by the management information storage part 132, when the first identification information notified by the user exists in the first identification information stored by the ground tint information storage part 131.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an authenticity determination system, an authenticity determination device, an authenticity determination method, and a program. [Background technology]

[0002] Anti-counterfeiting paper has been proposed, which is composed of a background image portion consisting of a line pattern applied to the surface of a substrate, and a latent image portion consisting of a line group pattern formed in an arbitrary area of ​​the line pattern so as to have approximately the same density as the background image portion (see, for example, Patent Document 1). When a printed matter with information printed on this anti-counterfeiting paper is copied using a copier, a pattern in the latent image portion that is unrelated to the printed information emerges, making it possible to determine that the copied copy is not the original. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4380107 Summary of the Invention [Problem to be solved by the invention]

[0004] In some cases, government agencies or companies may request the other party to submit a copy of a certified copy or contract in order to verify the contents of the certified copy or contract. In such cases, the government agency or company that receives the copy may need to verify whether the presented copy is a genuine certified copy or contract.

[0005] The present invention has been made in view of the above circumstances, and aims to provide an authenticity determination system, an authenticity determination device, an authenticity determination method, and a program that can easily determine the authenticity of a copy. [Means for solving the problem]

[0006] In order to achieve the above object, the authenticity determination system according to the present invention comprises: a printing machine that prints a printed matter on a base material, the printed matter having a first background pattern area of ​​a predetermined first pattern, a second background pattern area that is disposed within the first background pattern area and has a second pattern different from the first pattern and that represents first identification information, and a code that is associated with the first identification information and represents second identification information different from the first identification information; an identification information storage unit that stores the first identification information represented by the second tint block area of ​​the printed matter and the second identification information represented by the code in association with each other; a management information storage unit that stores the second identification information obtained by reading the code printed on the printed matter with a code reader and management identification information assigned by a first user who manages the printed matter, in association with each other; and an authenticity determination unit that determines whether the first identification information stored in the identification information storage unit contains first identification information notified by the second user as being understood from a portion corresponding to the second pattern area of ​​a copy obtained by the second user copying the printed material, or if the first identification information notified by the second user contains first identification information stored in the identification information storage unit, determines the authenticity of the copy based on management identification information stored in the management information storage unit and corresponding to the first identification information notified by the second user. [Effects of the Invention]

[0007] According to the present invention, the authenticity determination unit determines whether the first identification information notified by the second user as understood from a portion corresponding to the second background pattern area of ​​a copy of a printed material having a second background pattern area is present among the first identification information stored in the identification information storage unit, or if the first identification information notified by the second user is present among the first identification information stored in the identification information storage unit, determines the authenticity of the copy based on the management identification information stored in the management information storage unit that corresponds to the first identification information notified by the second user. This makes it possible to prevent the second user from fabricating copies. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic configuration diagram of an authenticity determination system according to an embodiment of the present invention; [Figure 2] 1 is a schematic diagram illustrating an example of a tint block printed matter according to an embodiment. [Figure 3] 1 is a block diagram showing a hardware configuration of an authenticity determination system according to an embodiment. [Figure 4] 1 is a block diagram showing a functional configuration of an authenticity determination system according to an embodiment; [Figure 5] 1A is a diagram showing an example of information stored in a background pattern information storage unit according to an embodiment, and FIG. 1B is a diagram showing an example of information stored in a management information storage unit according to an embodiment. [Figure 6] FIG. 2 is a sequence diagram showing an example of the operation of the authenticity determination system according to the embodiment. [Figure 7] FIG. 2 is a sequence diagram showing an example of the operation of the authenticity determination system according to the embodiment. [Figure 8] 10 is a flowchart illustrating an example of the flow of an authenticity determination process executed by the cloud server according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] An authenticity determination system according to the present embodiment will be described below with reference to the drawings. The authenticity determination system according to the present embodiment includes a printing machine, an identification information storage unit, a management information storage unit, and an authenticity determination unit. The printing machine prints a printed matter on a substrate, the printed matter having a first background pattern area of ​​a predetermined first pattern, a second background pattern area disposed within the first background pattern area and having a second pattern different from the first pattern and representing first identification information, and a code corresponding to the first identification information and representing second identification information different from the first identification information. The identification information storage unit stores the first identification information represented by the second background pattern area of ​​the printed matter and the second identification information represented by the code printed on the printed matter, in association with each other. The management information storage unit stores the second identification information obtained by reading the code printed on the printed matter with a code reader, in association with management identification information assigned by a first user who manages the printed matter. The authenticity determination unit determines whether or not the first identification information stored in the identification information storage unit contains first identification information notified by the second user that the second user has grasped from a portion of the copy obtained by the second user copying the printed material that corresponds to the second pattern area, or if the first identification information stored in the identification information storage unit contains first identification information notified by the second user, the authenticity determination unit determines the authenticity of the copy based on the management identification information stored in the management information storage unit that corresponds to the first identification information notified by the second user.

[0010] 1, the authenticity determination system according to this embodiment includes a printing machine 2 and a terminal device 5 owned by a printing company, a terminal device 3 owned by, for example, an administrative agency, and a cloud server 1. The printing machine 2 and the terminal device 5 are capable of communicating with each other via a local network NW21 established at the printing company. A code reader 4 for reading codes printed on printed materials (described below) is connected to the terminal device 5. The local network NW21 established at the printing company and the local network NW22 established at the administrative agency are each connected to a wide area network NW1 via a broadband router 81. This allows the cloud server 1 to communicate with the printing machine 2 and the terminal devices 3 and 5 via the wide area network NW1.

[0011] A printing company uses a printing press 2 to create printed matter PD and supply it to, for example, a government agency. Here, as shown in FIG. 2, the printing press 2 prints printed matter PD on a paper substrate, for example, on which a first background pattern area A1 of a predetermined first pattern, a second background pattern area A2 of a second pattern that is disposed within the first background pattern area A1 and is different from the first pattern, and a code BC. The second background pattern area A2 represents, for example, first identification information that uniquely identifies the printed matter PD. For example, a character string composed of at least one of numbers and letters can be used as the first identification information. Since the first identification information represented by the second background pattern area A2 printed on each of the multiple printed matters PD is different from each other, the printed matter PD can be uniquely identified by the first identification information. Furthermore, the code BC is a two-dimensional code such as a barcode or rMQR code (registered trademark), and represents, for example, second identification information that is different from the first identification information that uniquely identifies the printed matter PD.

[0012] Meanwhile, administrative agencies that receive printed matter PDs use them by printing administrative documents such as resident registration cards, seal certificates, and certified copies of family registers. In addition, the administrative agencies print administrative documents on the printed matter PDs and assign management identification information to each printed administrative document to identify it for management purposes. A user of the administrative agency then inputs the management identification information of the administrative document into a terminal device 3, and also reads the code BC of the printed matter PD on which the administrative document is printed using a code reader 4 connected to the terminal device 3 and inputs the code BC into the terminal device 3, thereby registering the management identification information and the second identification information represented by the code BC in association with each other.

[0013] As shown in FIG. 3, the printing press 2 has a printing unit 21 that prints the printed matter PD and a control unit 20. The printing unit 21 continuously prints a second tint block area A2 and a code BC representing first identification information that uniquely identifies the printed matter PD on multiple substrates. The printing unit 21 executes printing on the substrates based on control signals input from the control unit 20. The control unit 20 includes a CPU (Central Processing Unit) 201, a main memory 202, an auxiliary memory 203, a communication unit 206, an interface 207, and a bus 209 that connects the various components. The main memory 202 is a volatile memory such as a random access memory (RAM) and is used as a work area for the CPU 201. The auxiliary memory 203 is a nonvolatile memory such as a semiconductor flash memory and stores programs for implementing various functions of the printing press 2. The interface 207 is connected to the printing unit 21 and converts control information transferred from the CPU 201 into control signals and outputs them to the printing unit 21. The wide area communication unit 261 has an interface for connecting to the wide area network NW1, and the local communication unit 262 has an interface for connecting to the local network NW21 constructed by the printing company.

[0014] In the control unit 20, the CPU 201 loads a program stored in the auxiliary storage unit 203 into the main storage unit 202 and executes it, thereby functioning as a background pattern information acquisition unit 211, a print control unit 212, and a print information notification unit 213, as shown in Fig. 4. The auxiliary storage unit 203 shown in Fig. 3 also has a background pattern information storage unit 231 that stores first identification information represented by the second background pattern area A2 specified by the printing company and second identification information represented by the corresponding code BC, in association with each other, as shown in Fig. 4. When the background pattern information acquisition unit 211 acquires background pattern information (described below) transmitted from the terminal device 5 via the local network NW21, it extracts at least one piece of first identification information included in the acquired background pattern information and second identification information associated with each piece of first identification information, and stores the extracted first identification information and second identification information in the background pattern information storage unit 231 in association with each other.

[0015] The print control unit 212 generates print parameter information for printing a second tint block area representing the first identification information stored in the tint block information storage unit 231, and print parameter information for printing a code representing the second identification information stored in the tint block information storage unit 231, and generates control information including the generated print parameter information and transfers it to the interface 207. The interface 207 then converts the transferred control information into a control signal and outputs it to the print unit 21.

[0016] The printing information notification unit 213 generates printing information including a combination of first identification information and second identification information corresponding to the printing parameter information included in the control information generated by the printing control unit 212, and transmits the generated printing information to the cloud server 1.

[0017] Returning to FIG. 3 , the terminal device 5 is owned by the printing company and includes a CPU 501, a main memory 502, an auxiliary memory 503, a display 504, an input unit 505, a communication unit 506, and a bus 509 connecting the various units. The main memory 102 is a volatile memory such as RAM and is used as a work area for the CPU 101. The auxiliary memory 103 is a non-volatile memory such as a semiconductor flash memory and stores programs for realizing various functions of the terminal device 5. The display 504 is a liquid crystal display, an organic EL (Electro-Luminescence) display, or the like, and displays various information. The input unit 505 is, for example, a keyboard, and receives various operation information in response to operations by the printing company and outputs the received operation information to the CPU 501. The communication unit 506 has an interface for connecting to a local network NW21 established by the printing company.

[0018] The CPU 501 loads the program stored in the auxiliary storage unit 503 into the main storage unit 502 and executes it, thereby functioning as a background pattern information acquisition unit 511, a background pattern information notification unit 512, a determination result acquisition unit 513, and a display control unit 514, as shown in Fig. 4. The auxiliary storage unit 503 shown in Fig. 3 also has a background pattern information storage unit 531 that stores background pattern information indicating the combination of the first identification information and the second identification information input by the printing company via the input unit 505, and a determination result storage unit 532 that stores determination result information indicating the result of determining the authenticity of the copy of the printed matter PD, as shown in Fig. 4. When the printing company performs a watermark information setting operation via the input unit 505 to specify a combination of first identification information and second identification information corresponding to the second watermark area A2 and code BC to be printed on the printed matter PD, the watermark information acquisition unit 511 accepts the watermark information setting operation and stores the first identification information and second identification information input in the watermark information setting operation in correspondence with each other in the watermark information storage unit 531.

[0019] The background pattern information notification unit 512 generates background pattern information including at least one pair of first identification information and second identification information associated with each other and stored in the background pattern information storage unit 531, and transmits the generated background pattern information to the cloud server 1. When the determination result acquisition unit 513 acquires the above-mentioned determination result notification information transmitted from the cloud server 1, the determination result acquisition unit 513 extracts the determination result information included in the acquired determination result notification information, and stores the extracted determination result information in the determination result storage unit 532. The display control unit 514 forms a determination result notification image based on the determination result information stored in the determination result storage unit 531, and displays the image on the display unit 504.

[0020] Returning to FIG. 3, terminal device 3 is owned by an administrative agency and, like terminal device 5, includes a CPU 301, a main memory 302, an auxiliary memory 303, a display 304, an input unit 305, a communication unit 306, and a bus 309 connecting the various units. Main memory 302 is a volatile memory used as a work area for CPU 301, and auxiliary memory 303 is a non-volatile memory that stores programs for implementing various functions of terminal device 3. Display 304 is a display device that displays various information, and input unit 305 is, for example, a keyboard that accepts various operation information in response to operations by users of the administrative agency and outputs the accepted operation information to CPU 301. Communication unit 306 has an interface for connecting to local network NW22 established by the administrative agency.

[0021] By loading the programs stored in auxiliary storage unit 303 into main storage unit 302 and executing them, CPU 301 functions as management information acquisition unit 311, management information notification unit 312, hidden information acquisition unit 313, authenticity determination request unit 314, determination result acquisition unit 315, and display control unit 316, as shown in Fig. 4. Also, auxiliary storage unit 303 shown in Fig. 3 has management information storage unit 331 that stores management identification information for managing printed materials input by a user of an administrative agency via input unit 305 and second identification information read by the user using code reader 4, in association with each other, as shown in Fig. 4. Also, auxiliary storage unit 303 has hidden information storage unit 332 that stores second identification information that a user belonging to an administrative agency has supposedly grasped from a portion of a copy obtained by copying a printed material that corresponds to the second background pattern area, and determination result storage unit 333 that stores determination result information indicating the result of determining the authenticity of the copy of printed material PD.

[0022] When a user of an administrative agency uses the code reader 4 to read the code BC printed on the printed matter PD and performs an administrative information input operation via the input unit 305 of the terminal device 3 to specify administrative agency-specific management identification information for managing the printed matter PD, the management information acquisition unit 311 accepts the management information input operation and stores the second identification information and the management identification information input in the management information input operation in association with each other in the management information storage unit 331. Here, the management identification information is composed of a character string or the like printed or written on the printed matter PD to be copied onto a copy obtained by copying the printed matter PD.

[0023] The management information notification unit 312 generates management information including at least one pair of second identification information and management identification information associated with each other, which are stored in the management information storage unit 331, and user identification information identifying an administrative agency, and transmits the management information to the cloud server 1. The hidden information acquisition unit 313 acquires first identification information, which is so-called hidden information that can be ascertained from a portion corresponding to the second background pattern area of ​​a copy obtained by, for example, copying an administrative document using the printed matter PD. For example, suppose that a user belonging to an administrative agency performs an authenticity determination request operation to request a determination of the authenticity of a copy by inputting, via the input unit 305 of the terminal device 3, the first identification information notified by a user who uses the copy, which the user ascertained from a portion corresponding to the second background pattern area of ​​the copy obtained by copying an administrative document using the printed matter PD, and the management identification information written on the copy. In this case, the hidden information acquisition unit 313 accepts the authenticity determination request operation and stores in the hidden information storage unit 332 the first identification information and management identification information input in the authenticity determination request operation.

[0024] When the hidden information storage unit 332 newly stores first identification information and management identification information, the authenticity determination request unit 314 generates authenticity determination request information including the first identification information and management identification information and transmits it to the cloud server 1. When the determination result acquisition unit 315 acquires the above-mentioned determination result notification information transmitted from the cloud server 1, it extracts the determination result information included in the acquired determination result notification information and stores the extracted determination result information in the determination result storage unit 333. The display control unit 316 forms a determination result notification image based on the determination result information stored in the determination result storage unit 333 and displays it on the display unit 304. Then, a user belonging to an administrative agency refers to the determination result notification image displayed on the display unit 304 and notifies the user who will use the above-mentioned copy of information regarding the authenticity of the copy.

[0025] Returning to FIG. 3, cloud server 1 includes CPU 101, main memory unit 102, auxiliary memory unit 103, communication unit 106, and bus 109 connecting the various units. CPU 101 has, for example, a multi-core processor for server use. Main memory unit 102 is a volatile memory and is used as a work area for CPU 101, and auxiliary memory unit 103 is a non-volatile memory and stores programs for realizing various functions of cloud server 1. Communication unit 106 has an interface for connecting to wide area network NW1.

[0026] The CPU 101 reads out and executes a program stored in the auxiliary storage unit 103 into the main storage unit 102, thereby functioning as a print information acquisition unit 111, a management information acquisition unit 112, an authenticity determination request acquisition unit 113, an authenticity determination unit 114, and a determination result notification unit 115, as shown in FIG. 4. The auxiliary storage unit 103 shown in FIG. 3 also includes a background pattern information storage unit 131 and a management information storage unit 132, as shown in FIG. 4. The background pattern information storage unit 131 is an identification information storage unit that stores, in association with each other, first identification information represented by a second background pattern area of ​​the printed matter PD and second identification information represented by a code printed on the printed matter PD, as shown in FIG. 5A, for example. The example shown in FIG. 5A indicates that the first identification information "○○...XX" is associated with the second identification information "00011...AABB."

[0027] 5(B), the management information storage unit 132 stores second identification information acquired by reading the code BC printed on the printed matter PD with the code reader 4, in association with management identification information assigned by a user belonging to the administrative agency that manages the printed matter PD. The management information storage unit 132 also stores the second identification information and management identification information in association with user identification information that identifies the administrative agency that owns the terminal device 3 that is the sender of the management information. In the example shown in FIG. 5(B), the management identification information "U1-○○○○" is associated with the second identification information "00011...AABB", indicating that this information is associated with the user identification information "ID-U1."

[0028] Returning to Fig. 4, when the printing information acquisition unit 111 acquires the above-mentioned printing information transmitted from the printing machine 2, it extracts a combination of the first identification information and the second identification information included in the acquired printing information, associates the extracted combination of the first identification information and the second identification information with each other, and stores the associations in the background pattern information storage unit 131. When the management information acquisition unit 112 acquires the management information transmitted from the terminal device 3, it extracts a combination of the second identification information and the management identification information included in the acquired management information, and associates the extracted combination of the second identification information and the management identification information with each other, and stores the associations in the management information storage unit 132.

[0029] When the authenticity determination request acquisition unit 113 acquires the above-mentioned authenticity determination request information transmitted from the terminal device 3, it extracts the first identification information and management identification information contained in the acquired authenticity determination request information, and notifies the authenticity determination unit 114 of the extracted first identification information and management identification information.

[0030] The authenticity determination unit 114 determines whether the first identification information notified by the authenticity determination request acquisition unit 113 is present in the first identification information stored in the background pattern information storage unit 131. Here, if the authenticity determination unit 114 determines that the notified first identification information is not present in the first identification information stored in the background pattern information storage unit 131, it determines that the copy is a counterfeit. On the other hand, if the authenticity determination unit 114 determines that the first identification information notified by the authenticity determination request acquisition unit 113 is present in the first identification information stored in the background pattern information storage unit 131, it determines the authenticity of the copy based on the management identification information stored in the management information storage unit 132 that corresponds to the notified first identification information. Here, if the first identification information notified by the authenticity determination request acquisition unit 113 is present among the first identification information stored in the background pattern information storage unit 131, and if the management identification information stored in the management information storage unit 132 and corresponding to the notified first identification information matches the notified management identification information, the authenticity determination unit 114 determines that the copy is authentic. On the other hand, if the management identification information stored in the management information storage unit 132 and corresponding to the notified first identification information does not match the notified management identification information, the authenticity determination unit 114 determines that the copy is a forgery. Then, the authenticity determination unit 114 notifies the determination result notification unit 115 of determination result information indicative of the determination result.

[0031] When the determination result information is notified from the authenticity determination unit 114, the determination result notification unit 115 generates determination result notification information including the notified determination result information and transmits it to the terminal devices 3 and 5.

[0032] Next, the operation of the authenticity determination system according to this embodiment will be described with reference to Figures 6 and 7. First, as shown in Figure 6, it is assumed that the printing company performs the above-mentioned background pattern information setting operation via the input unit 505 of the terminal device 5. In this case, the terminal device 5 accepts the background pattern information setting operation and stores the first identification information and second identification information input in the background pattern information setting operation in the background pattern information storage unit 531 in association with each other. The terminal device 5 then generates background pattern information including at least one pair of associated first identification information and second identification information to be stored in the background pattern information storage unit 531 (step S1), and the generated background pattern information is transmitted from the terminal device 5 to the printing machine 2 (step S2). Meanwhile, when the printing machine 2 acquires the background pattern information transmitted from the terminal device 5, it extracts at least one piece of first identification information included in the acquired background pattern information and second identification information associated with each of the first identification information, and stores the extracted first identification information and second identification information in the background pattern information storage unit 231 in association with each other (step S3).

[0033] Next, when the printing company performs a print start operation to start printing of the printed matter PD having the first tint block area A1, the second tint block area A2, and the code BC by the printing machine 2, the printing machine 2 starts printing the printed matter PD (step S4). After that, when the printing company performs a print end operation to end printing of the printed matter PD by the printing machine 2, the printing machine 2 ends printing of the printed matter PD (step S5). Next, the printing machine 2 generates printing information including a combination of first identification information and second identification information corresponding to the printed matter PD (step S6), and the generated printing information is transmitted from the printing machine 2 to the cloud server 1 (step S7). Meanwhile, when the cloud server 1 acquires the printing information transmitted from the printing machine 2, it extracts the combination of the first identification information and the second identification information included in the acquired printing information, and stores the extracted combination of the first identification information and the second identification information in association with each other in the tint block information storage unit 131 (step S8).

[0034] Thereafter, the printed matter PD is provided to an administrative agency, and a user belonging to the administrative agency reads the code BC printed on the printed matter PD using the code reader 4 and performs an administrative information input operation via the input unit 305 of the terminal device 3 to specify administrative identification information unique to the administrative agency for managing the printed matter PD. In this case, the terminal device 3 accepts the administrative information input operation and stores the second identification information and the administrative identification information input in the administrative information input operation in association with each other in the administrative information storage unit 331. The terminal device 3 then generates administrative information including at least one pair of the second identification information and the administrative identification information associated with each other and stored in the management information storage unit 331 (step S9), and the generated administrative information is transmitted from the terminal device 3 to the cloud server 1 (step S10). Meanwhile, when the cloud server 1 acquires the management information transmitted from the terminal device 3, it extracts the combination of the second identification information and the management identification information contained in the acquired management information, and stores the extracted combination of the second identification information and the management identification information in correspondence with each other in the management information storage unit 132 (step S11).

[0035] Next, suppose a user belonging to a government agency copies an administrative document using a printed matter PD and inputs, via the input unit 305 of the terminal device 3, the first identification information reported by a user who will use the copy, as determined from the portion of the copy corresponding to the second background pattern area, and the management identification information printed on the copy, thereby requesting a determination of the authenticity of the copy. Here, examples of users who use copies of administrative documents include businesses that require copies of documents registered with government agencies, such as resident registration certificates, seal registration certificates, and family register transcripts, for commercial transactions. In this case, as shown in FIG. 7 , the terminal device 3 accepts the authenticity determination request and stores the first identification information and management identification information entered in the authenticity determination request in the hidden information storage unit 332. Then, the terminal device 3 generates authenticity determination request information including the first identification information and management identification information stored in the hidden information storage unit 332 (step S12), and the generated authenticity determination request information is transmitted from the terminal device 3 to the cloud server 1 (step S13). Meanwhile, upon receiving the authenticity determination request information transmitted from the terminal device 3, the cloud server 1 extracts the first identification information and management identification information included in the received authenticity determination request information (step S14).

[0036] Next, the cloud server 1 performs an authenticity determination based on the extracted first identification information and management identification information (step S15). Specifically, the cloud server 1 determines whether the extracted first identification information exists in the first identification information stored in the background pattern information storage unit 131. Here, if the extracted first identification information does not exist in the first identification information stored in the background pattern information storage unit 131, the cloud server 1 determines that the copy is a forgery. Furthermore, if the extracted first identification information exists in the first identification information stored in the background pattern information storage unit 131, and if the extracted management identification information corresponds to the extracted first identification information stored in the management information storage unit 132 and matches the extracted management identification information, the cloud server 1 determines that the copy is authentic. On the other hand, if the management identification information corresponding to the extracted first identification information stored in the management information storage unit 132 does not match the extracted management identification information, the authenticity determination unit 114 determines that the copy is a counterfeit.

[0037] Thereafter, the cloud server 1 generates determination result notification information including determination result information indicating the determination result (step S16), and the generated determination result notification information is transmitted from the cloud server 1 to the terminal devices 3 and 5, respectively (steps S17 and S18). Meanwhile, upon receiving the determination result notification information transmitted from the cloud server 1, the terminal device 3 extracts the determination result information included in the received determination result notification information and stores the extracted determination result information in the determination result storage unit 333 (step S19). Next, the terminal device 3 forms a determination result notification image based on the determination result information stored in the determination result storage unit 333 and displays it on the display unit 304 (step S20). Then, a user belonging to an administrative agency refers to the determination result notification image displayed on the display unit 304 and notifies the user who will use the copy of information regarding the authenticity of the copy.

[0038] Furthermore, when the terminal device 5 acquires the aforementioned determination result notification information transmitted from the cloud server 1, it extracts the determination result information included in the acquired determination result notification information and stores the extracted determination result information in the determination result storage unit 532 (step S21). Subsequently, the terminal device 5 forms a determination result notification image based on the determination result information stored in the determination result storage unit 532 and displays it on the display unit 504 (step S22).

[0039] Next, the authenticity determination process executed by the cloud server 1 according to the present embodiment will be described with reference to FIG. 8. This authenticity determination process is initiated when a program for executing the authenticity determination process is started in the cloud server 1. First, the printing information acquisition unit 111 determines whether or not the above-described printing information transmitted from the printing machine 2 has been acquired (step S101). If the printing information acquisition unit 111 determines that the printing information has not been acquired (step S101: No), the process of step S103, which will be described later, is executed. On the other hand, if the printing information acquisition unit 111 determines that the printing information has been acquired (step S101: Yes), the printing information acquisition unit 111 extracts a combination of first identification information and second identification information included in the acquired printing information, and stores the extracted combination of first identification information and second identification information in association with each other in the background pattern information storage unit 131 (step S102).

[0040] Next, the management information acquisition unit 112 determines whether or not management information transmitted from the terminal device 3 has been acquired (step S103). If the management information acquisition unit 112 determines that management information has not been acquired (step S103: No), the process of step S105, which will be described later, is executed. On the other hand, if the management information acquisition unit 112 determines that management information has been acquired (step S103: Yes), it extracts a combination of second identification information and management identification information included in the acquired management information, and stores the extracted combinations of second identification information and management identification information in association with each other in the management information storage unit 132 (step S104).

[0041] Next, the authenticity determination request acquisition unit 113 determines whether or not the authenticity determination request information transmitted from the terminal device 3 has been acquired (step S105). If the authenticity determination request acquisition unit 113 determines that the authenticity determination request information has not been acquired (step S105: No), the process of step S101 is executed again. On the other hand, if the authenticity determination request acquisition unit 113 determines that the authenticity determination request information has been acquired (step S105: Yes), it extracts the first identification information and management identification information included in the acquired authenticity determination request information (step S106) and notifies the authenticity determination unit 114 of the extracted first identification information and management identification information.

[0042] Then, the authenticity determination unit 114 performs an authenticity determination based on the first identification information and management identification information notified by the authenticity determination request acquisition unit 113 (step S107). Specifically, the authenticity determination unit 114 first determines whether the first identification information notified by the authenticity determination request acquisition unit 113 is present in the first identification information stored in the background pattern information storage unit 131. Here, if the authenticity determination unit 114 determines that the notified first identification information is not present in the first identification information stored in the background pattern information storage unit 131, it determines that the copy is a forgery. On the other hand, if the first identification information notified by the authenticity determination request acquisition unit 113 is present in the first identification information stored in the background pattern information storage unit 131, the authenticity determination unit 114 determines the authenticity of the copy based on the management identification information stored in the management information storage unit 132 that corresponds to the notified first identification information. Here, the authenticity determination unit 114 determines that the copy is authentic if the management identification information stored in the management information storage unit 132 and corresponding to the notified first identification information matches the notified management identification information. On the other hand, if the management identification information stored in the management information storage unit 132 and corresponding to the notified first identification information does not match the notified management identification information, the authenticity determination unit 114 determines that the copy is a forgery. Then, the authenticity determination unit 114 notifies the determination result notification unit 115 of determination result information indicative of the determination result.

[0043] Thereafter, the determination result notification unit 115 generates determination result notification information including the determination result information notified by the authenticity determination unit 114, and transmits the information to the terminal devices 3 and 5 (step S108).

[0044] As described above, in the authenticity determination system according to the present embodiment, the authenticity determination unit 114 of the cloud server 1 determines whether the first identification information included in the authenticity determination request information is present among the first identification information stored in the background pattern information storage unit 131. Furthermore, if the above-described first identification information is present among the first identification information stored in the background pattern information storage unit 131, the authenticity determination unit 114 determines the authenticity of the copy based on the management identification information stored in the management information storage unit 132 and corresponding to the first identification information included in the authenticity determination request information. This makes it possible to prevent the fabrication of copies of documents using printed matter PD.

[0045] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment. For example, instead of the code BC printed on the printed matter PD, a character string may be printed.

[0046] In the embodiment, an example has been described in which the substrate of the printed matter PD is a paper medium, but the substrate is not limited to a paper medium and may be a medium formed from a material other than a paper medium, such as a plastic sheet or card.

[0047] In the embodiment, an example has been described in which a printing company supplies printed matter PD to an administrative agency, but the destination of the printed matter PD is not limited to administrative agencies, and it may also be supplied to various professional offices, such as law firms that prepare legal documents.

[0048] In this case, it can also be used to determine the authenticity of a document presented as an original created by, for example, a law firm. In this case, if latent characters such as a string of characters representing the first identification information are not reproduced when the presented document is printed by a copier, it can be determined at this point that the presented document is not an original. Also, if latent characters such as a string of characters are reproduced when the presented document is printed by a copier, the first identification information represented by the latent characters and the management identification information written on the copy can be input via the input unit 305 of the terminal device 3 to perform the above-mentioned authenticity determination request operation, thereby determining whether the presented document is a genuine original.

[0049] Furthermore, the various functions of the cloud server 1, control unit 20, and terminal devices 3 and 5 according to the present disclosure may be realized by software, firmware, or a combination of software and firmware. In this case, the software or firmware may be written as a program, and the program may be stored and distributed on a computer-readable recording medium such as a flexible disk, CD-ROM (Compact Disc Read Only Memory), DVD (Digital Versatile Disc), or MO (Magneto-Optical Disc). The program may then be read and installed on a computer to configure a computer capable of realizing each of the aforementioned functions. Furthermore, if each function is realized by sharing the work between an operating system (OS) and an application, or by cooperation between the OS and an application, only the parts other than the OS may be stored on the recording medium.

[0050] Furthermore, each program can be superimposed on a carrier wave and distributed over a network. For example, the program can be posted on a bulletin board system (BBS) on the network and distributed over the network. These programs can then be started and run under the control of the OS in the same way as other application programs, thereby enabling the above-mentioned processing to be performed. [Industrial Applicability]

[0051] The present disclosure is suitable as an authenticity determination system for determining the authenticity of a copy. [Explanation of symbols]

[0052] 1: Cloud server, 2: Printing machine, 3, 5: Terminal device, 4: Code reader, 20: Control unit, 21: Printing unit, 81: Broadband router, 101, 201, 301, 501: CPU, 102, 202, 302, 502: Main memory unit, 103, 203, 303, 503: Auxiliary memory unit, 106, 206, 306, 506: Communication unit, 109, 209, 309, 509: Bus, 111: Printing information acquisition unit, 112, 311: Management information acquisition unit, 113: Authenticity determination request acquisition unit, 114: Authenticity determination unit, 115: Determination result notification unit, 131, 231, 531: Pattern information storage unit, 132, 331: management information storage unit, 207, 352: interface, 211, 511: background pattern information acquisition unit, 212: print control unit, 213: print information notification unit, 312: management information notification unit, 313: hidden information acquisition unit, 314: authenticity judgment request unit, 315, 513: judgment result acquisition unit, 316, 514: display control unit, 332: hidden information storage unit, 333, 532: judgment result storage unit, 351, 505: input unit, 512: background pattern information notification unit, A1: first background pattern area, A2: second background pattern area, BC: code NW1, wide area network, NW21, NW22: local network, PD: printed matter

Claims

1. a printing machine that prints a printed matter on a substrate, the printed matter having a first background pattern area of ​​a predetermined first pattern, a second background pattern area that is disposed within the first background pattern area and has a second pattern different from the first pattern and that represents first identification information, and a code that is associated with the first identification information and represents second identification information different from the first identification information; an identification information storage unit that stores the first identification information represented by the second tint block area of ​​the printed matter and the second identification information represented by the code of the printed matter in association with each other; a management information storage unit that stores the second identification information obtained by reading the code printed on the printed matter with a code reader and management identification information assigned by a first user who manages the printed matter, in association with each other; an authenticity determination unit that determines whether or not the first identification information stored in the identification information storage unit includes first identification information notified by the second user as being understood from a portion corresponding to the second tint block area of ​​a copy obtained by the second user copying the printed matter, or if the first identification information notified by the second user exists in the first identification information stored in the identification information storage unit, determines the authenticity of the copy based on management identification information stored in the management information storage unit and corresponding to the first identification information notified by the second user. Authenticity determination system.

2. the printing machine continuously prints the second tint block area representing the first identification information that uniquely identifies the printed matter on a plurality of the base materials; The authenticity determination system according to claim 1 .

3. the management identification information is printed or written on the printed matter so as to be copied on a copy obtained by copying the printed matter, When first identification information notified by the second user exists, the authenticity determination unit determines the authenticity of the copy based on whether or not management identification information corresponding to the first identification information notified by the second user and stored in the management information storage unit matches with management identification information notified by the second user as having been grasped from a copy obtained by the second user copying the printed matter. The authenticity determination system according to claim 1 or 2.

4. The code is a barcode or a two-dimensional code. The authenticity determination system according to claim 1 or 2.

5. an identification information storage unit that stores, in association with each other, the first identification information represented by the second background pattern area of ​​a printed matter printed by a printing machine that prints a printed matter on a substrate, the first identification information represented by the second background pattern area of ​​the printed matter, the second identification information represented by the code of the printed matter being printed with the first identification information; a management information storage unit that stores the second identification information obtained by reading the code printed on the printed matter with a code reader and management identification information assigned by a first user who manages the printed matter, in association with each other; an authenticity determination unit that determines whether or not the first identification information stored in the identification information storage unit includes first identification information notified by the second user as being understood from a portion corresponding to the second tint block area of ​​a copy obtained by the second user copying the printed matter, or if the first identification information notified by the second user exists in the first identification information stored in the identification information storage unit, determines the authenticity of the copy based on management identification information stored in the management information storage unit and corresponding to the first identification information notified by the second user. Authenticity determination device.

6. a step of storing in an identification information storage unit, in association with each other, the first identification information represented by the second background pattern area of ​​a printed matter printed by a printing machine that prints a printed matter on a substrate, the printed matter having printed thereon a first background pattern area of ​​a predetermined first pattern, a second background pattern area that is disposed within the first background pattern area and is a second pattern different from the first pattern and represents first identification information, and a code that is associated with the first identification information and represents second identification information different from the first identification information; a step of storing the second identification information obtained by reading the code printed on the printed matter with a code reader and management identification information assigned by a first user who manages the printed matter in a management information storage unit in association with each other; and determining whether or not the first identification information stored in the identification information storage unit includes first identification information notified by the second user as being understood from a portion of the copy obtained by the second user copying the printed matter corresponding to the second tint block area, or if the first identification information notified by the second user exists in the first identification information stored in the identification information storage unit, determining the authenticity of the copy based on management identification information stored in the management information storage unit and corresponding to the first identification information notified by the second user. Authenticity determination method.

7. Computer, an identification information storage unit that stores, in association with each other, the first identification information represented by the second background pattern area of ​​a printed matter printed by a printing machine that prints a printed matter on a substrate, the printed matter having printed thereon a first background pattern area of ​​a predetermined first pattern, a second background pattern area that is disposed within the first background pattern area and has a second pattern different from the first pattern and represents first identification information, and a code that is associated with the first identification information and represents second identification information different from the first identification information; a management information storage unit that stores the second identification information obtained by reading the code printed on the printed matter with a code reader and management identification information assigned by a first user who manages the printed matter, in association with each other; an authenticity determination unit that determines whether or not the first identification information stored in the identification information storage unit includes first identification information notified by the second user as being understood from a portion of a copy obtained by the second user copying the printed matter corresponding to the second tint block area, or if the first identification information notified by the second user includes first identification information stored in the identification information storage unit, determines the authenticity of the copy based on management identification information stored in the management information storage unit and corresponding to the first identification information notified by the second user; A program to function as a

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