JP2012053597A - Merchandise information processing device, program and settlement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent information code of temporary registration information passed from a preprocessing system to a settlement device from being altered.SOLUTION: A merchandise information processing device includes a reading control part 61a for reading a merchandise code of a merchandise, a temporary registration information generation part 61b for generating merchandise information including at least the merchandise code read by the reading control part 61a as temporary registration information, an encryption part 61c for encrypting the temporary registration information generated by the temporary registration information generation part 61b by a specified encrypting system, an information code generation part 61d for generating information code through coding the temporary registration information encrypted by the encryption part 61c by a specified coding system, and an output control part 61e for outputting the information code generated by the information code generation part 61d.

Description

  Embodiments described herein relate generally to a commodity information processing apparatus, a program, and a settlement apparatus.

  Conventionally, a product to be purchased is provisionally registered (counted) by a device different from the POS terminal, and an information code of provisional registration information corresponding to the provisional registration content is printed on a piece of paper as a two-dimensional code. A system in which a code is read and processing such as settlement is performed is known.

  In this type of system, it is desirable to suppress falsification of the information code of temporary registration information.

  In the product information processing apparatus according to the embodiment of the present invention, a read control unit that reads a product code of a product, and information on a product including at least the product code read by the read control unit is generated as temporary registration information A temporary registration information generating unit, an encryption unit that encrypts the temporary registration information generated by the temporary registration information generation unit using a predetermined encryption method, and the temporary registration information encrypted by the encryption unit And an output control unit for outputting the information code generated by the information code generation unit, and an output control unit for outputting the information code generated by the information code generation unit. To do.

FIG. 1 is a diagram showing an example of a schematic configuration of a merchandise sales information processing system including a merchandise information processing apparatus according to the first embodiment of the present invention. FIG. 2 is a perspective view showing a configuration example of a mobile terminal as the product information processing apparatus according to the first embodiment of the present invention. FIG. 3 is a perspective view of the mobile terminal of FIG. 2 viewed from another angle. FIG. 4 is a plan view showing a schematic configuration of a key portion of the mobile terminal of FIG. FIG. 5 is a block diagram showing an example of a portable terminal as the product information processing apparatus according to the first embodiment of the present invention. FIG. 6 is a block diagram illustrating an example of a CPU of a mobile terminal as the product information processing apparatus according to the first embodiment of the present invention. FIG. 7 is a block diagram showing an example of a settlement apparatus included in the merchandise sales information processing system according to the first embodiment of the present invention. FIG. 8 is a conceptual diagram showing a procedure of key delivery, pre-processing, and settlement in the merchandise sales information processing system according to the first embodiment. FIG. 9 is a conceptual diagram showing an example of a schematic configuration of purchase planned product information used in the product sales information processing system according to the first embodiment. FIG. 10 is a conceptual diagram showing a procedure of key delivery, pre-processing, and settlement in the merchandise sales information processing system according to the second embodiment. FIG. 11 is a conceptual diagram showing a procedure of key delivery, pre-processing, and settlement in the merchandise sales information processing system according to the third embodiment. FIG. 12 is a conceptual diagram showing a procedure of key delivery, pre-processing, and settlement in the merchandise sales information processing system according to the fourth embodiment. FIG. 13 is a conceptual diagram showing a procedure of key delivery, pre-processing, and settlement in the merchandise sales information processing system according to the fifth embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that similar components are included in the following embodiments. Therefore, below, the same code | symbol is provided to those similar components, and the overlapping description is abbreviate | omitted.

<First Embodiment>
As shown in FIG. 1, in this embodiment, the merchandise sales information processing system 1 is configured as a store system, and includes a store server 2 and a POS (Point Of Sales) terminal 3. The store server 2 and the POS terminal 3 are electrically connected via an electric communication line 4 such as a LAN (Local Area Network).

  In addition, the product sales information processing system 1 of the present embodiment includes a pre-processing system 5. The pre-processing system 5 is composed of a portable device that can change the place of use relatively easily, and includes a portable terminal 6 as a product information processing device and a portable printer 7. Communication is performed between the communication device 8 and the portable terminal 6 and between the portable terminal 6 and the portable printer 7 by wireless (for example, wireless LAN, infrared communication, etc.). The preprocessing system 5 may be configured to include other devices such as a measuring instrument. The portable terminal 6 can also be configured as a terminal including a printer.

  The pre-processing system 5 can tentatively register (count) a product (scheduled purchase product) that a customer intends to purchase. Therefore, for example, in a situation where many customers are waiting in front of the POS terminal 3 such as in the evening crowded, the operator uses the pre-processing system 5 to preliminarily register the products to be purchased. Thus, the POS terminal 3 can use the temporary registration information (scheduled purchase product information) indicating the contents of the temporary registration to omit the registration work of the planned purchase product by the operator. Therefore, the processing time at the POS terminal 3 can be shortened and the waiting time of the customer can be reduced. The POS terminal 3 corresponds to a payment apparatus. Moreover, in this embodiment, since the pre-processing system 5 is comprised by the portable apparatus, the operator can perform preparation and withdrawal of the temporary pre-processing system 5 comparatively easily. Since the POS terminal 3 also has a function of registering a purchase planned product, it is possible to register a purchase planned product that has not been provisionally registered in the preprocessing system 5, and can be provisionally registered in the preprocessing system 5. It is also possible to register a product that has not been registered, or to register a product to be purchased again when some inconvenience occurs although provisional registration has already been performed in the preprocessing system 5.

  In the present embodiment, the content of the product scheduled for purchase temporarily registered by the pre-processing system 5 is sent to the POS terminal via an information code (for example, one-dimensional code, two-dimensional code) recorded on a medium (for example, a piece of paper). 3 is transmitted. That is, the pre-processing system 5 has a function of temporarily registering a product scheduled for purchase and a function of outputting an information code indicating the content to a medium. When using a piece of paper as a medium, the portable terminal 6 is responsible for the function of temporarily registering the product to be purchased, and the portable printer 7 is responsible for the function of printing out the information code on the piece of paper. For example, the customer goes to the POS terminal 3 with a piece of paper (receipt) together with the product to be purchased that has been provisionally registered in the pre-processing system 5, and passes the piece of paper to the operator of the POS terminal 3. The POS terminal 3 reads the information code printed on the piece of paper in accordance with the operation of the operator, reads the contents of the product planned for purchase, and performs sales registration processing and settlement processing for the product planned for purchase.

  As described above, in the present embodiment, the mobile terminal 6 is configured as a mobile information processing terminal operated by an operator (such as a store clerk). As shown in FIGS. 2 and 3, the mobile terminal 6 has a substantially rectangular parallelepiped appearance and is configured so that an operator can operate it with one hand.

  The portable terminal 6 has a housing 6a that forms an outer shell. As shown in FIG. 2, a display 6b such as a liquid crystal display, a key portion 6c, and the like are provided on the front side of the housing 6a. On the other hand, as shown in FIG. 3, a scanner 6d, a battery 6e, and the like are provided on the back side of the housing 6a. The scanner 6d is disposed on the back side of the recess 6f. As shown in FIGS. 2 and 3, trigger switches 6g and 6h are provided at the central portions of the left and right side surfaces of the housing 6a. The operator can instruct to start or stop reading of the product code (information code given to the product) by the scanner 6d by operating these trigger switches 6g and 6h. In addition, a light projecting / receiving window 6i of a first wireless communication interface (I / F) 62e (see FIG. 5) is provided at the lower part of the left side surface of the housing 6a.

  The battery 6e is detachably attached to the lower part of the back surface of the housing 6a. The operator can remove the battery 6e from the housing 6a by operating a release switch 6j provided at the lower part of the right side surface of the housing 6a. The portable terminal 6 operates with the power of the battery 6e.

  As shown in FIG. 4, the key unit 6c includes a numeric key 6c1 including a value number key of “0” to “9” and a decimal point key, an enter key 6c2, a backspace key 6c3, a clear key 6c4, a shift key 6c5, a power key. 6c6, first magic key 6c7, second magic key 6c8, and the like.

  The scanner 6d optically reads a product code (for example, a one-dimensional code such as a barcode or a two-dimensional code). For example, a product code as product identification information is attached to each product in the form of a barcode.

  As shown in FIG. 5, the portable terminal 6 includes a CPU (Central Processing Unit) 61, a ROM (Read Only Memory) 62a, a RAM (Random Access Memory) 62b, an NVRAM (Non Volatile Ram) 62c, and a clock unit 62d. , A first wireless communication interface (I / F) 62e, a second wireless communication interface (I / F) 62f, a scanner controller 62g, a display controller 62h, a key controller 62i, and the like. These constituent elements are electrically connected to each other via a bus line 62j such as an address bus or a data bus.

  The CPU 61 controls the portable terminal 6 by executing various computer-readable programs stored in the ROM 62a or the like. The ROM 62a stores various data executed by the CPU 61, various programs (BIOS (Basic Input Output System) program, application program, device driver program, etc.) and the like. The RAM 62b temporarily stores data and programs when the CPU 61 executes various programs. The NVRAM 62c can store various data such as a key (data) described later even when the power is turned off.

  In the present embodiment, a program for the portable terminal 6 includes a module for reading the product code by controlling the scanner controller 62g and the scanner 6d, a module for generating purchase planned product information as temporary registration information, and purchase planned product information. A module that encrypts data using the encryption method, a module that encodes encrypted product information to be purchased and generates an information code, a module that outputs an information code, and a key (data) used for encryption and decryption Module etc. are included. Therefore, according to the program, the CPU 61 of the mobile terminal 6 performs a reading control unit 61a, an information generation unit 61b, an encryption unit 61c, an information code generation unit (encoding unit) 61d, and an output control unit as shown in FIG. 61e, the key generation unit 61f, and the like. The information generation unit 61b corresponds to a temporary registration information generation unit.

  Further, the clock unit 62d shown in FIG. 5 measures the current date and time. The first wireless communication interface 62 e controls data communication with the portable printer 7. The second wireless communication interface 62f controls data communication with the communication device 8. As these communication methods, various methods can be adopted.

  The scanner controller 62g receives a data signal read by the scanner 6d and sends it to the CPU 61. The display controller 62h controls the display 6b to display an image (including characters and numbers) corresponding to the data received from the CPU 61. The key controller 62 i receives signals output from the key unit 6 c and the trigger switches 6 g and 6 h and sends them to the CPU 61.

  The portable printer 7 prints data received from the portable terminal 6 on paper. The portable printer 7 can be configured as, for example, a thermal printer that prints on a belt-like paper drawn from a paper roll. The portable printer 7 is provided with a cutter (not shown), and an operator can obtain a piece of paper on which an image is printed by cutting the strip-shaped paper on which data is printed with the cutter. Further, the portable printer 7 can also have a function of cutting the belt-like paper. In the present embodiment, the portable printer 7 is a piece of paper 10 on which an information code (for example, a two-dimensional code) in which data indicating a product to be purchased temporarily registered in the portable terminal 6 is encoded as described above is printed (see FIG. 8) is created.

  7, the POS terminal 3 includes a CPU (Central Processing Unit) 31, a ROM (Read Only Memory) 32a, a RAM (Random Access Memory) 32b, a clock unit 32c, an I / O (Input / Output). ) Port 32d, network interface 32g, keyboard controller 32h, touch panel controller 32i, display controller 32j, printer controller 32k, scanner controllers 32m and 32n, storage device controller 32p, and the like. As shown in FIG. 7, these components are connected to each other via a bus line 32q such as an address bus or a data bus.

  The CPU 31 controls the POS terminal 3 by executing various computer-readable programs stored in the ROM 32a or the like. The ROM 32a stores various data executed by the CPU 31, various programs (BIOS program, application program, device driver program, etc.) and the like. The RAM 32b temporarily stores data and programs when the CPU 31 executes various programs.

  In this embodiment, a module for generating a key (data) used for encryption and decryption, a module for reading an information code, and a module for decrypting (decoding) an information code in a predetermined encoding format in the program for the POS terminal 3 And a module for decrypting (decrypting) the decrypted information in a predetermined encryption format. Therefore, the CPU 31 of the POS terminal 3 operates as a key generation unit 31a, a first decryption unit 31b, a second decryption unit (decryption) unit 31c, and the like according to the program. In addition, the CPU 31 of the POS terminal 3 includes a reading unit that reads an information code according to a program, an information code generation unit (encoding unit) that generates an information code, a print control unit that controls printing, a sales registration unit, and a settlement unit. Etc. (not shown).

  Further, the clock unit 32c measures the current date and time. The I / O port 32d inputs a mode selection signal from the mode switch 32e and outputs a signal to a drawer opening device 32f that automatically opens a drawer (not shown). The network interface (I / F) 32g controls data communication with other devices connected through the telecommunication line 4 or the like. The keyboard controller 32h receives a key signal corresponding to the operation key from the keyboard 33a and sends it to the CPU 31. The touch panel controller 32 i controls the customer display 33 c to display an image corresponding to the data received from the CPU 31, and receives a signal from the touch panel sensor 33 b provided on the display 33 c and sends it to the CPU 31. The display controller 32j controls the operator display 33d to display an image or the like corresponding to the data received from the CPU 31. The printer controller 32k controls the receipt / journal (R / J) printer 33e to perform receipt printing and journal printing based on data supplied from the CPU 31. The scanner controllers 32m and 32n receive data signals read by the barcode scanner 33f or the CCD scanner 33g and send them to the CPU 31.

  The storage device controller 32p controls writing and reading of data to and from the storage device 33h as a nonvolatile storage unit based on an instruction signal from the CPU 31. The storage device 33h stores various data in addition to an OS (Operating System) program, an application program, a device driver program, and the like.

  As described above, in the product sales information processing system 1 according to the present embodiment, as shown in FIG. 8, the purchase planned product information 9 indicating the purchase planned product temporarily registered in the preprocessing system 5 (mobile printer 7). A piece of paper 10 on which an information code (for example, a two-dimensional code) 10a is encoded is created. Here, in this embodiment, the pre-processing system 5 encrypts the planned purchase product information 9 with a predetermined encryption method, encodes it, and creates the information code 10a, thereby suppressing falsification of the information code 10a. be able to. That is, in the POS terminal 3, the information code 10a is decrypted (decoded) in a predetermined encoding format and decrypted (decrypted) in a predetermined encrypted format to obtain the product information 9 to be purchased. The information code 10a for which correct information was not obtained when decrypted (decryption) in the encrypted format can be handled as an incorrect information code 10a.

  As shown in FIG. 8, in this embodiment, a common key cryptosystem using a common key (data) shared between the POS terminal 3 and the preprocessing system 5 is used. First, the CPU 31 of the POS terminal 3 operates as the key generation unit 31a and generates a common key (step S111). Next, the CPU 31 operates as a print control unit, and causes the R / J printer 33e to output the paper piece 11 on which an information code (for example, a one-dimensional code) 11a obtained by encoding a common key is printed (step S112). Next, the CPU 61 of the portable terminal 6 of the preprocessing system 5 operates as the reading control unit 61a, controls the scanner 6d, and reads the information code 11a printed on the paper piece 11 (step S113). The CPU 61 of the portable terminal 6 can obtain the common key by decoding (decoding) the information code 11a. The common key is stored in the storage unit (storage device 33h, NVRAM 62c, etc.) of the POS terminal 3 and the preprocessing system 5. The paper piece 11 on which the common key information code 11a is printed is delivered to the preprocessing system 5 in a state where the reliability is established. The common key is preferably timed data from the viewpoint of improving reliability. Specifically, for example, the common key is recreated every day before the start of business, or when the preprocessing system 5 is not always used, it is created before use every time the preprocessing system 5 is used. Is preferred.

  When provisionally registering a product to be purchased, in the pre-processing system 5, first, the CPU 61 of the mobile terminal 6 operates as the reading control unit 61a to control the scanner 6d to read the product code of the product to be purchased (step S121). ). Next, the CPU 61 operates as the information generation unit 61b, and generates purchase planned product information 9 (plain text) including a serial number (No.), the read product code, quantity, and additional information as shown in FIG. (Step S122). The purchase planned product information 9 may be data in which serial numbers, product codes, quantities, additional information, etc. for each of a plurality of products are listed in a predetermined order (for example, read order). . The additional information is, for example, discount information or point information. Additional information and numerical values can also be input by operating the key portion 6c. Further, the planned purchase product information 9 can have header information including the number of products, the data size of the planned purchase product information 9, the creation time of the planned purchase product information 9, the expiration date of the planned purchase product information 9, and the like. . When the expiration date (for example, 20 minutes) of the purchase planned product information 9 is set, the POS terminal 3 invalidates the purchase planned product information 9 that has passed the expiration date and does not handle it.

  Next, in the pre-processing system 5, the CPU 61 of the mobile terminal 6 operates as the encryption unit 61 c and encrypts the planned purchase product information 9 (plain text) using a common key (data) in a predetermined encryption format. (Step S123). Next, the CPU 61 operates as the information code generation unit 61d, encodes the encrypted purchase planned product information 9 in a predetermined encoding format, and generates the information code 10a (step S124). Next, the CPU 61 operates as the output control unit 61e, and causes the portable printer 7 to print (output) data including the information code 10a (step S125). When the mobile terminal 6 communicates with the store server 2 or the like, the CPU 61 can calculate the total price of the products scheduled for purchase and control the mobile printer 7 to print on the piece of paper 10. The customer brings the piece of paper 10 thus created to the POS terminal 3 together with the product to be purchased (actual) put in a basket or the like.

  In the POS terminal 3, the CPU 31 controls the CCD scanner 33g to read the information code 10a printed on the piece of paper 10. Then, the CPU 31 operates as the first decoding unit 31b, and decodes (decodes) the read information code 10a (step S126). Next, the CPU 31 operates as the second decryption unit 31c, decrypts (decrypts) the data decrypted using the common key (data), and obtains the purchase planned product information 9 (plain text). (Step S127). Next, the CPU 31 executes sales registration (main registration), settlement, etc. based on the purchase planned product information 9 (step S128).

  Thus, in the POS terminal 3, the information code 10a is decoded (decoded) in a predetermined encoding format, and is decrypted (decrypted) in a predetermined encrypted format to obtain the purchase planned product information 9. Therefore, if the pre-processing system 5 (portable terminal 6) does not encrypt the purchase planned product information 9 to be encoded by using a valid correct common key (data), it is obtained in step S126. The data becomes undecipherable data.

  Therefore, according to the present embodiment, since the purchase planned product information 9 as temporary registration information is encoded and then encoded, it is compared with a case where an information code encoded with the temporary registration information in plain text is delivered. Thus, falsification of the paper piece 10 and the information code 10a can be suppressed.

Second Embodiment
In this embodiment shown in FIG. 10 as well, a common key (data) shared between the POS terminal 3A having the same configuration as that of the first embodiment and the preprocessing system 5A having the same configuration as that of the first embodiment is used. A common key cryptosystem is used. However, in the present embodiment, the common key (data) is generated not by the POS terminal 3A but by the pre-processing system 5A. That is, first, the CPU 61 of the portable terminal 6 of the pre-processing system 5A operates as the key generation unit 61f and generates a common key (step S211). Next, the CPU 61 operates as the output control unit 61e, and causes the portable printer 7 to output the paper piece 11 on which an information code (for example, a one-dimensional code) 11a obtained by encoding a common key is printed (step S212). Next, the CPU 31 of the POS terminal 3A controls the CCD scanner 33g to read the information code 11a printed on the paper piece 11 (step S213). The CPU 31 can decrypt (decode) the information code 11a to obtain a common key. The common key is stored in the storage unit (storage device 33h, NVRAM 62c, etc.) of the POS terminal 3A and the preprocessing system 5A. The piece of paper 11 on which the common key information code 11a is printed is delivered to the POS terminal 3A in a state where the reliability is established.

  The flow from provisional purchase product purchase registration in the pre-processing system 5A to sales registration and settlement processing in the POS terminal 3A is exactly the same as in the first embodiment. Also with the above configuration, the same effect as in the first embodiment can be obtained.

<Third Embodiment>
In the present embodiment shown in FIG. 11, a public key (data) shared between the POS terminal 3B having the same configuration as that of the first embodiment and the pre-processing system 5B having the same configuration as that of the first embodiment is used. Public key cryptography is used. That is, first, the CPU 31 of the POS terminal 3B operates as the key generation unit 31a, and generates a public key and a secret key that are paired by a key generation algorithm of a predetermined public key encryption method (step S311). Next, the CPU 31 operates as a print control unit, and causes the R / J printer 33e to output the paper piece 11 on which an information code (for example, a one-dimensional code) 11a obtained by encoding a public key is printed (step S312). Next, the CPU 61 of the portable terminal 6 of the pre-processing system 5B operates as the reading control unit 61a, controls the scanner 6d, and reads the information code 11a printed on the paper piece 11 (step S313). The CPU 61 of the portable terminal 6 can obtain the public key by decrypting (decoding) the information code 11a. The public key is stored in the storage unit (storage device 33h, NVRAM 62c, etc.) of the POS terminal 3B and the preprocessing system 5B. The secret key is stored in the storage unit (storage device 33h or the like) of the POS terminal 3B. The paper piece 11 on which the information code 11a of the public key is printed is delivered to the preprocessing system 5B with the reliability established. The public key is preferably timed data from the viewpoint of improving reliability. For example, it is preferable that the public key is recreated every day before the start of business, or when the preprocessing system 5B is not always used, it is created before use every time the preprocessing system 5B is used. .

  In addition, regarding the flow from provisional purchase product purchase registration in the preprocessing system 5B to sales registration and settlement processing in the POS terminal 3B, the preprocessing system 5B uses a public key for encryption in step S123. The POS terminal 3B is exactly the same as the first and second embodiments except that the secret key is used in the decryption (decryption) in step S127. Also with the above configuration, the same effects as those of the first and second embodiments can be obtained. In addition, since the information encrypted with the public key can be decrypted (decrypted) only with the secret key, according to the present embodiment, there is an advantage that the confidentiality of the commodity information 9 to be purchased can be further increased.

<Fourth embodiment>
In the present embodiment shown in FIG. 12, a common key shared by the POS terminal 3C having the same configuration as that of the first to third embodiments and the preprocessing system 5C having the same configuration as that of the first to third embodiments. A common key cryptosystem using (data) is used. Further, the second embodiment is the same as the second embodiment in that a common key (data) is generated by the pre-processing system 5C. However, in this embodiment, the preprocessing system 5C is different from the second embodiment in that an encrypted common key obtained by encrypting a common key with a public key is sent to the POS terminal 3C. That is, in this embodiment, a hybrid encryption method is adopted.

  In the present embodiment, first, the CPU 31 of the POS terminal 3C operates as the key generation unit 31a, and generates a public key and a secret key by a key generation algorithm of a predetermined public key encryption method (step S411). Next, the CPU 31 operates as a print control unit, and causes the R / J printer 33e to output the paper piece 11 on which an information code (for example, a one-dimensional code) 11a obtained by encoding a public key is printed (step S412). Next, the CPU 61 of the portable terminal 6 of the pre-processing system 5B operates as the reading control unit 61a, controls the scanner 6d, and reads the information code 11a printed on the paper piece 11 (step S413). The CPU 61 of the portable terminal 6 can obtain the public key by decrypting (decoding) the information code 11a. The public key is stored in the storage unit (storage device 33h, NVRAM 62c, etc.) of the POS terminal 3C and the preprocessing system 5C. The secret key is stored in the storage unit (storage device 33h or the like) of the POS terminal 3C.

  The CPU 61 of the portable terminal 6 of the preprocessing system 5C generates a common key. Then, the CPU 61 operates as the key generation unit 61f, and encrypts the common key with the public key to generate an encrypted common key (step S414). Next, the CPU 61 operates as the output control unit 61e, and causes the portable printer 7 to output a piece of paper 12 on which an information code (for example, a one-dimensional code) 12a obtained by encoding an encrypted common key is printed (step S415). Next, the CPU 31 of the POS terminal 3C controls the CCD scanner 33g to read the information code 12a printed on the paper piece 12 (step S416). The CPU 31 can decrypt (decrypt) the information code 12a with the secret key to obtain a correct common key (step S417). The common key is stored in the storage unit (storage device 33h, NVRAM 62c, etc.) of the POS terminal 3C and the preprocessing system 5C. The paper piece 11 on which the public key information code 11a is printed is passed to the pre-processing system 5C in a state where the reliability is established, and the paper piece 12 on which the encryption common key information code 12a is printed is reliable. In the established state, it is passed to the POS terminal 3C. The information code 12a may be printed on the piece of paper 10 together with the information code 10a.

  Further, the flow from provisional purchase product purchase registration in the pre-processing system 5C to sales registration and settlement processing in the POS terminal 3C is exactly the same as in the first embodiment. Therefore, the same effects as those of the first embodiment can be obtained by the above configuration. Also, since the information encrypted with the public key can only be decrypted (decrypted) with the private key, according to the present embodiment, the confidentiality of the common key can be further increased, and the pieces of paper 10 and information code 10a Tampering can be further suppressed.

  In the present embodiment, it is preferable that the information codes of the information code 11a indicating the public key and the information code 12a indicating the encryption common key are different. Thereby, it is possible to prevent the preprocessing system 5C or the POS terminal 3C from mistaking the public key and the encrypted common key.

<Fifth Embodiment>
In the present embodiment shown in FIG. 13, a public key (data) shared between the POS terminal 3D having the same configuration as that of the first embodiment and the pre-processing system 5D having the same configuration as that of the first embodiment is used. Public key cryptography is used. However, in the present embodiment, unlike the third embodiment, the public key and the secret key (data) are generated not by the POS terminal 3D but by the preprocessing system 5D. That is, first, the CPU 61 of the portable terminal 6 of the pre-processing system 5D operates as the key generation unit 61f, and generates a public key and a secret key by a key generation algorithm of a predetermined public key encryption method (step S511). Next, the CPU 61 operates as the output control unit 61e, and causes the portable printer 7 to output a piece of paper 11 on which an information code (for example, a one-dimensional code) 11a encoded with a public key is printed (step S512). Next, the CPU 31 of the POS terminal 3D controls the CCD scanner 33g to read the information code 11a printed on the paper piece 11 (step S513). The CPU 31 can decrypt (decode) the information code 11a to obtain a public key. The public key is stored in the storage unit (storage device 33h, NVRAM 62c, etc.) of the POS terminal 3D and the preprocessing system 5D. The paper piece 11 on which the public key information code 11a is printed is delivered to the POS terminal 3D in a state where the reliability is established. The information code 11a may be printed on the piece of paper 10 together with the information code 10a.

  In addition, regarding the flow from provisional purchase product purchase registration in the pre-processing system 5D to sales registration and settlement processing in the POS terminal 3D, the pre-processing system 5D uses a secret key for encryption in step S123. The POS terminal 3D is exactly the same as the first to fourth embodiments except that the public key is used in the decryption (decryption) in step S127. Also with the above configuration, the same effects as those of the first to fourth embodiments can be obtained.

  Also, information encrypted with the private key can only be decrypted (decrypted) with the public key. Therefore, the POS terminal 3D suppresses impersonation of the preprocessing system 5D by a third party by decrypting with the public key (data) of the correct preprocessing system 5D previously held through step S513 in step S127. can do. When there are a plurality of preprocessing systems 5D corresponding to the POS terminal 3D, the POS terminal 3D has a plurality of public keys (data), and sequentially decrypts (decrypts) the plurality of public keys. Temporary registration information that can be decrypted (decrypted) into plain text that can be interpreted is adopted as valid.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made. For example, the merchandise sales information processing system may include a preprocessing device as a merchandise information processing device including a printer, instead of the preprocessing system of the above embodiment. In the above embodiment, the key (data) is transferred between the settlement apparatus and the preprocessing system via an information code printed on a piece of paper. Can be carried out via wireless or wired communication in a state where reliability is established, for example, by taking it to the place where the settlement apparatus is installed. Further, the key (data) can be delivered by reading the information code displayed on one display of the portable terminal and the settlement apparatus with the other scanner. Further, the purchase planned product information may be information including the total amount. Further, data (for example, digital signature data) encrypted with a secret key unique to the product information processing apparatus that temporarily registers the product may be included in a part of the temporary registration information. In that case, the payment device can obtain correct data by decrypting the data with the public key of the product information processing device, thereby preventing spoofing of the product information processing device by a third party. can do. Further, the merchandise information processing apparatus may encrypt the temporary registration information including the data encrypted with the secret key of the merchandise information processing apparatus with the public key of the settlement apparatus and generate the information code by encoding the temporary registration information. Good. In that case, the confidentiality of temporary registration information can be improved. In addition, the specifications (method, structure, shape, size, arrangement, position, number, etc.) of each component (product sales processing system, pre-processing system, product information processing device, printer, payment device, paper piece, etc.) It can be implemented with appropriate changes.

  According to the embodiment, falsification of the information code of temporary registration information can be suppressed.

1 Product sales information processing system 3 POS terminal (settlement device)
5 Pre-processing system 6 Mobile terminal (product information processing device)
6d Scanner 9 Purchased product information (temporary registration information)
61a Reading control unit 61b Information generation unit (temporary registration information generation unit)
61c Encryption unit 61d Information code generation unit 61e Output control unit

JP 2004-102423 A

Claims (7)

A reading control unit for reading the product code of the product;
A provisional registration information generating unit that generates information on a product including at least the product code read by the reading control unit as temporary registration information;
An encryption unit that encrypts the temporary registration information generated by the temporary registration information generation unit using a predetermined encryption method;
An information code generation unit that generates an information code by encoding the temporary registration information encrypted by the encryption unit using a predetermined encoding method;
An output control unit that outputs the information code generated by the information code generation unit;
A product information processing apparatus comprising:   The said encryption part performs an encryption process using the common key shared between the payment apparatuses which read the output said information code and perform a payment process, The Claim 1 characterized by the above-mentioned. Product information processing equipment.   The encryption unit performs encryption processing by using a public key corresponding to a secret key unique to a payment apparatus that reads the output information code and executes payment processing. The product information processing apparatus described.   The encryption unit reads the output information code and executes a payment process. The encryption unit is encrypted using a public key corresponding to a secret key unique to the payment apparatus and shared with the payment apparatus. The product information processing apparatus according to claim 1, wherein encryption processing is executed using a key.   The product information processing apparatus according to claim 1, wherein the encryption unit performs encryption processing using a secret key that is unique to the product information processing apparatus and for which a corresponding public key is generated. .   The computer includes the reading control unit, the provisional registration information generation unit, the encryption unit, the information code generation unit, and the output control unit of the commodity information processing apparatus according to any one of claims 1 to 5. A program characterized by functioning as   A settlement apparatus that executes a settlement process by reading the information code output by the product information processing apparatus according to claim 1.

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