JP5149331B2 - Game machine, main control board, peripheral board, game machine authentication method and authentication program - Google Patents

Description

  The present invention relates to a gaming machine, a main control board, a peripheral board, an gaming machine authentication method, and an authentication program that include a plurality of boards and perform authentication of communication between these boards.

  Conventionally, in an electronic apparatus having a plurality of substrates, various techniques have been proposed for preventing fraud on these substrates. Examples of the electronic device provided with a plurality of substrates include a pachinko gaming machine. The pachinko gaming machine includes a main control board that controls the operation of the entire electronic device and a controlled board (peripheral board) that performs the operation of each part of the electronic device. The main control board outputs a control signal including a control command to the peripheral board, and the other peripheral boards have a function of executing an operation according to the control signal transmitted from the main control board.

  In the case of an electronic device having such a configuration, examples of frauds with respect to the main control board include, for example, replacing a regular main control board with an illegal control board, or altering a program code that defines processing performed by the main control board. There is a technique. In order to prevent such fraud, for example, a technique has been proposed in which program data recorded in a ROM mounted on the main control board is checked by a ROM checker to prevent illegal exchange of the ROM ( For example, see the following Patent Document 1.)

JP 11-333108 A

  However, when the above-described conventional technology is used, the alteration of the program data can be detected, but if an unauthorized control board is connected between the authorized main control board and the controlled board, this unauthorized control board is used. It is not possible to prevent unauthorized control by an unauthorized control signal output from.

  FIG. 30 is an explanatory diagram showing an outline of a fraud prevention technique according to the prior art. FIG. 31 is an explanatory diagram showing an example of inserting an unauthorized control board. 30 and 31, the unauthorized control will be specifically described with reference to the unauthorized control board. As shown in FIG. 30, the regular main control board 1501 normally sends the regular control signal RS to the peripheral board 1502. The output of the peripheral substrate 1502 is controlled. A regular main control board 1501 is provided with an inspection port 1503. The program data recorded in the ROM or the like provided inside the regular main control board 1501 is inspected from the inspection port 1503 to inspect whether the regular main control board 1501 is fraudulent.

  However, as shown in FIG. 31, an unauthorized control board 1601 may be inserted between the regular main control board 1501 and the peripheral board 1502 in order to perform unauthorized control of the electronic device. The unauthorized control board 1601 discards or ignores the authorized control signal RS output from the authorized main control board 1501 and outputs an unauthorized control signal FS to the peripheral board 1502 instead.

  In the case of the prior art, the peripheral board 1502 cannot determine whether the input signal is the normal control signal RS or the illegal control signal FS. Therefore, when an unauthorized control signal FS is input to the peripheral board 1502, there is a problem that an unauthorized operation cannot be detected and an operation corresponding to the control content of the unauthorized control signal FS is performed.

  Further, since the inspection port 1503 is provided on the regular main control board 1501, even if the inspection using the inspection port 1503 is performed, the inspection result for the regular main control board 1501 is returned. Therefore, even if the inspection port 1503 is provided, there is a problem that unauthorized control by the unauthorized control board 1601 cannot be detected.

  FIG. 32 is an explanatory diagram showing an outline of signal switching by the signal switching circuit. As shown in FIG. 32, a signal switching circuit 1603 may be mounted in an unauthorized control board 1601 in addition to an unauthorized CPU 1602 that outputs an unauthorized control signal FS. When the signal switching circuit 1603 is mounted, the unauthorized control board 1601 causes the normal control signal RS to be output during initial diagnosis or inspection operation of the control signal RS output from the normal CPU 1504, and during other operations, It can be switched to output an unauthorized control signal FS.

  In other words, the normal control signal RS output from the normal CPU 1504 can be output only when the inspection using the inspection port 1503 or the operation diagnosis of the CPU is performed by the signal switching circuit 1603. Such a problem is made possible by analyzing transmission data transmitted from the legitimate CPU 1501 to the peripheral board 1502 by the unauthorized control board 1601, so that the transmission data is illegally used by the unauthorized control board 1601. There was a need to prevent.

  In recent years, in order to improve the interest of games, there is a tendency for various effects to appeal to the visual and auditory senses of players during a reach or jackpot. Therefore, if the CPU on the peripheral part (peripheral board) side tries to execute the authentication process in addition to the existing process, the processing load of the CPU increases and the processing speed decreases, and the display for the production is smooth. In the worst case, the authentication process itself could not be added.

  In order to solve the above-described problems caused by the prior art, the present invention prevents the data transmitted from the main control unit to the peripheral unit from being used for illegal control and reduces the processing load on the peripheral CPU. An object of the present invention is to provide a gaming machine, a main control board, a peripheral board, a gaming machine authentication method and a certification program.

The gaming machine according to claim 1 according to the present invention includes a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit. In the gaming machine provided, the main control unit includes a program data storage means for storing program data for defining the operation of the main control unit, and a next encryption from a plurality of different encryption methods of the main control unit. An individual authentication value storage means for storing a plurality of types of individual authentication values for specifying a conversion method; and a first inspection value for inspecting one individual authentication value selected from the plurality of types of individual authentication values . A first test value generating means for generating an authentication method; an action value acquiring means for acquiring an action value that changes in accordance with an operation of the main control unit that has executed the program data; and checking the acquired action value. A second inspection value generating means for generating a second inspection value by a second authentication method, and calculating one of the first inspection value or the second inspection value by a predetermined first operation method; First authentication data generating means for generating first authentication data, and the first inspection value different from the one inspection value or the other inspection value of the second inspection value and all of the one inspection value Or a second authentication data generating means for generating a second authentication data by calculating a part of the second authentication data by a predetermined second calculation method, and the individual authentication value selected by the first test value generating means First authentication data and second authentication data generated by the first authentication data generation means by specifying the next encryption method, switching the plurality of types of encryption methods to the next encryption method At least one of the second authentication data generated by the generating means Comprising encryption means for No. of the main control side transmission means for transmitting the pre-Symbol first authentication data and second authentication data in said intermediate portion, said intermediate portion, the first from the main control unit A plurality of pieces of expected value data corresponding to each of the plurality of types of individual authentication values and corresponding to each of the plurality of types of encryption methods; and intermediate side receiving means for receiving one authentication data and the second authentication data. Expected value data storage means for storing, and the received first authentication data and second authentication data in a decryption method corresponding to the encryption method of the encryption means are stored in each of the plurality of types of encryption methods. Decoding means for switching and decoding a plurality of types of corresponding decoding methods, and the first check value or the second check value from the decoded first authentication data and second authentication data. Calculation method and the second calculation method A check value extracting means for extracting, based on said first test value and the expected value data storing means and comparing the expected value is stored, the main control unit authentication based on the comparison result is established Intermediate authentication result data generating means for generating intermediate authentication result data indicating whether or not, and intermediate transmission means for transmitting the generated intermediate authentication result data to the peripheral part, wherein the peripheral part includes the intermediate authentication result data A peripheral side receiving unit that receives the intermediate authentication result data from a unit; and a processing unit that performs the predetermined process according to the received intermediate authentication result data.

According to the gaming machine of the present invention described in claim 1, when the main control unit selects one individual authentication value from a plurality of types of individual authentication values, the first control unit checks the selected individual authentication value. The inspection value is generated by the first authentication method. When the main control unit acquires an operation value that changes in accordance with the operation of executing the program data, the main control unit generates a second inspection value for inspecting the operation value by the second authentication method. The main control unit calculates either one of the first inspection value and the second inspection value by the first calculation method to generate the first authentication data, and the first control value is different from the one inspection value. The second authentication data can be generated by calculating the other inspection value of the inspection value or the second inspection value and all or part of the one inspection value by the second operation method. Then, the main control unit encrypts the first authentication data and the second authentication data using the current encryption method and transmits the encrypted data to the intermediate unit, and from the individual authentication value used for the first inspection value, Specify the conversion method . On the other hand, the intermediate unit decodes the first authentication data and the second authentication data received from the main control unit by switching a plurality of types of decryption methods, and extracts the first inspection value and the expected value extracted from the authentication data. Comparing the expected value data stored in the data storage means , generating intermediate authentication result data indicating whether or not the authentication of the main control unit is established based on the comparison result, and transmitting it to the peripheral part it can. On the other hand, the peripheral unit can perform a predetermined process in the gaming machine according to the intermediate authentication result data received from the intermediate unit.

The gaming machine according to claim 2 according to the present invention includes a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit. In the gaming machine provided, the main control unit first authenticates a program data storage means for storing program data defining an operation of the main control unit, and a first inspection value for inspecting an individual authentication value of the main control unit. A first inspection value generating means for generating the operation data, an operation value acquiring means for acquiring an operation value that changes in accordance with the operation of the main control unit that has executed the program data, and a first inspection for inspecting the acquired operation value. Two or more types of different encryption methods are used as a one-to-one correspondence between the second inspection value generating means for generating two inspection values by the second authentication method and the inspection value of either the first inspection value or the second inspection value. The phase associated with A first authentication data generating means for generating first authentication data by performing a first calculation method comprising a plurality of types of calculation methods, and the first inspection value or the first inspection value different from the one inspection value. A second test method comprising a plurality of different calculation methods in which a plurality of different types of encryption methods are associated one-to-one with the other test value of two test values and all or part of the one test value. The second authentication data generating means for generating the second authentication data by calculating with the calculation method, and the next calculation method used for generating the first authentication data and the second authentication data for the next time are the plurality of types. A first authentication data generated by the first authentication data generating means in a next calculation method determining means determined from the calculation methods, and an encryption method indicating the next calculation method determined by the next calculation method determining means; The second authentication data raw Encryption means for encrypting at least one of the second authentication data generated by the means, and main control side transmission means for transmitting the first authentication data and the second authentication data to the intermediate unit, The intermediate unit is generated corresponding to each of the intermediate receiving means for receiving the first authentication data and the second authentication data from the main control unit and each of the plurality of types of encryption methods. Expected values for the calculation method of the calculation method for one authentication data and the second authentication data are stored in association with the plurality of types of encryption methods and the next calculation method corresponding to each encryption method. A storage means that identifies the calculation method expectation value that matches the received first authentication data and second authentication data from the plurality of calculation method expectation values; The encryption corresponding to Specifying means for specifying the next calculation method from among the plurality of types of calculation methods, the received first authentication data and the first data based on the decryption method corresponding to the specified encryption method; A decoding means for decoding the two authentication data, and the first check value or the second check value from the decoded first authentication data and second authentication data based on the specified next calculation method Whether the test value extraction means to be extracted matches the expected value predetermined corresponding to each of the first test value or the second test value and the extracted first test value and second test value Intermediate authentication result data generating means for generating intermediate authentication result data indicating whether or not the authentication of the main control unit based on the comparison result has been established, and the generated intermediate authentication result data as the peripheral Send to department An intermediate-side transmission unit, and the peripheral unit receives the intermediate authentication result data from the intermediate unit, and a processing unit that performs the predetermined process according to the received intermediate authentication result data When, characterized Rukoto equipped with.

According to the gaming machine of the present invention described in the second aspect, the main control unit generates the first inspection value for inspecting the individual authentication value by the first authentication method. When the main control unit acquires an operation value that changes in accordance with the operation of executing the program data, the main control unit generates a second inspection value for inspecting the operation value by the second authentication method. The main control unit calculates either one of the first inspection value and the second inspection value by the first calculation method to generate the first authentication data, and the first control value is different from the one inspection value. The second authentication data can be generated by calculating the other inspection value of the inspection value or the second inspection value and all or part of the one inspection value by the second operation method. When the main control unit determines a next calculation method to be used for generating the next first authentication data and second authentication data from among a plurality of types of calculation methods, the main control unit performs the first authentication using the encryption method indicating the next calculation method. At least one of the authentication data and the second authentication data can be encrypted. The main control unit transmits the first authentication data and the second authentication data to the intermediate unit. On the other hand, when the intermediate unit specifies an expected value for the calculation method that matches the first authentication data and the second authentication data received from the main control unit from among a plurality of types of calculation method expected values, the intermediate calculation The encryption method corresponding to the expected value for the method is specified, and the next calculation method is specified from a plurality of types of calculation methods. When the intermediate unit decrypts the received first authentication data and second authentication data based on the decryption method corresponding to the specified encryption method, the intermediate unit corresponds to the specified next operation method And based on the second calculation method, a first inspection value and a second inspection value are extracted from the received first authentication data and second authentication data. The intermediate unit compares whether or not the predetermined expected value corresponding to each of the first inspection value or the second inspection value matches the extracted first inspection value and the second inspection value, Based on the comparison result, intermediate authentication result data indicating whether or not authentication of the main control unit has been established can be generated and transmitted to the peripheral unit. On the other hand, the peripheral unit can perform a predetermined process in the gaming machine according to the intermediate authentication result data received from the intermediate unit .

A gaming machine according to claim 3 according to the present invention includes a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit. In the gaming machine provided, the main control unit first authenticates a program data storage means for storing program data defining an operation of the main control unit, and a first inspection value for inspecting an individual authentication value of the main control unit. A first inspection value generating means for generating the operation data, an operation value acquiring means for acquiring an operation value that changes in accordance with the operation of the main control unit that has executed the program data, and a first inspection for inspecting the acquired operation value. Two or more types of different encryption methods are used as a one-to-one correspondence between the second inspection value generating means for generating two inspection values by the second authentication method and the inspection value of either the first inspection value or the second inspection value. The phase associated with A first authentication data generating means for generating first authentication data by performing a first calculation method comprising a plurality of types of calculation methods, and the first inspection value or the first inspection value different from the one inspection value. A second test method comprising a plurality of different calculation methods in which a plurality of different types of encryption methods are associated one-to-one with the other test value of two test values and all or part of the one test value. The second authentication data generating means for generating the second authentication data by calculating with the calculation method, and the next calculation method used for generating the first authentication data and the second authentication data for the next time are the plurality of types. A first authentication data generated by the first authentication data generating means in a next calculation method determining means determined from the calculation methods, and an encryption method indicating the next calculation method determined by the next calculation method determining means; The second authentication data raw Encryption means for encrypting at least one of the second authentication data generated by the means, and main control side transmission means for transmitting the first authentication data and the second authentication data to the intermediate unit, The intermediate unit includes an intermediate receiving unit that receives the first authentication data and the second authentication data from the main control unit, and the plurality of types of the received first authentication data and second authentication data. Decryption means for decrypting with all of the plurality of types of decryption methods corresponding to each of the encryption methods, and the first check value and the first authentication data and the second authentication data, Test value extraction means for extracting the second test value in association with the encryption method, and the first test that matches the expected value among all the extracted first test values and second test values Value and the second inspection value And specifying the next calculation method of the inspection value extracting means from the plurality of types of calculation methods based on the encryption method associated with the specified first check value and the second check value. The specifying means compares whether the predetermined expected value corresponding to each of the first test value or the second test value matches the extracted first test value and second test value. , Intermediate authentication result data generating means for generating intermediate authentication result data indicating whether authentication of the main control unit based on the comparison result has been established, and transmitting the generated intermediate authentication result data to the peripheral unit Intermediate side transmission means, and the peripheral portion receives peripheral authentication result data from the intermediate portion, and processing means for performing the predetermined processing according to the received intermediate authentication result data Rukoto equipped with, and And features.

According to the gaming machine of the present invention described in the third aspect, the main control unit generates the first inspection value for inspecting the individual authentication value by the first authentication method. When the main control unit acquires an operation value that changes in accordance with the operation of executing the program data, the main control unit generates a second inspection value for inspecting the operation value by the second authentication method. The main control unit calculates either one of the first inspection value and the second inspection value by the first calculation method to generate the first authentication data, and the first control value is different from the one inspection value. The second authentication data can be generated by calculating the other inspection value of the inspection value or the second inspection value and all or part of the one inspection value by the second operation method. When the main control unit determines a next calculation method to be used for generating the next first authentication data and second authentication data from among a plurality of types of calculation methods, the main control unit performs the first authentication using the encryption method indicating the next calculation method. At least one of the authentication data and the second authentication data can be encrypted. The main control unit transmits the first authentication data and the second authentication data to the intermediate unit. On the other hand, the intermediate unit decrypts the received first authentication data and second authentication data with all of a plurality of types of decryption schemes corresponding to each of the plurality of types of encryption schemes. The first inspection value and the second inspection value are extracted in association with the encryption method from the plurality of first authentication data and second authentication data. The intermediate unit specifies the first test value and the second test value that match the expected value from among all the extracted first test values and second test values, and the specified first test value and second test value The next calculation method is specified from a plurality of types of calculation methods based on the encryption method associated with. Then, the intermediate unit, based on the first calculation method and the second calculation method corresponding to the specified next calculation method, from the first authentication data and the second authentication data received from the main control unit, A second inspection value is extracted. Then, the intermediate part compares whether or not the predetermined expected value corresponding to each of the first inspection value or the second inspection value matches the extracted first inspection value and second inspection value. Based on the comparison result, intermediate authentication result data indicating whether or not the authentication of the main control unit is established can be generated and transmitted to the peripheral part. On the other hand, the peripheral unit can perform a predetermined process in the gaming machine according to the intermediate authentication result data received from the intermediate unit .

The main control board according to claim 4 according to the present invention is used in a gaming machine including a peripheral board composed of an intermediate part and a peripheral part, and a control command for performing a predetermined process in the gaming machine is given to the peripheral part. In the main control board to be transmitted through the intermediate unit, the program data storage means for storing the program data defining the operation of the main control board, and the next time among the different types of encryption methods of the main control unit Individual authentication value storage means for storing a plurality of types of individual authentication values for specifying an encryption method, and a first inspection value for inspecting one individual authentication value selected from the plurality of types of individual authentication values A first inspection value generating means for generating by one authentication method, an action value acquiring means for acquiring an action value that changes corresponding to the action of the main control board that has executed the program data, and the acquired action A second inspection value generating means for generating a second inspection value for inspecting the value by a second authentication method, and a first operation in which one of the first inspection value and the second inspection value is determined in advance. A first authentication data generating means for calculating the first authentication data by calculation using the method, the first inspection value different from the one inspection value or the other inspection value of the second inspection value and the one Second authentication data generating means for generating second authentication data by calculating all or part of the inspection values by a predetermined second calculation method, and the individual selected by the first inspection value generating means The next encryption method is specified from the authentication value, the plurality of types of encryption methods are switched to the next encryption method, and the first authentication data generated by the first authentication data generation unit and the first A small amount of the second authentication data generated by the two authentication data generating means Characterized in that it comprises encryption means for encrypting one of Kutomo, the main control side transmission means for transmitting the pre-Symbol first authentication data and second authentication data in the middle portion of the peripheral substrate.

According to the main control board of the present invention described in claim 4, when one individual authentication value is selected from a plurality of types of individual authentication values, the first inspection value for inspecting the individual authentication value is changed to the first inspection value. When it is generated by the one authentication method, an operation value that changes according to the operation of executing the program data is acquired, and a second inspection value for inspecting the operation value is generated by the second authentication method. Then, either the first inspection value or the second inspection value is calculated by the first calculation method to generate the first authentication data, and the first inspection value different from the one inspection value or Second authentication data is generated by calculating the other inspection value of the second inspection value and all or part of the one inspection value by the second operation method. Then, the generated first authentication data and second authentication data are encrypted by the current encryption method and transmitted to the intermediate portion of the peripheral board, and the next time from the individual authentication value used for the first inspection value. Specify the encryption method .

A peripheral board according to claim 5 according to the present invention is mounted on a gaming machine including the main control board according to claim 4 and performs a predetermined process based on a control command transmitted by the main control board. In the board, intermediate receiving means for receiving the first authentication data and the second authentication data from the main control board, and the plurality of types of encryption methods corresponding to each of the plurality of types of individual authentication values Expected value data storage means for storing a plurality of expected value data corresponding to each of the first authentication data and the second authentication data received in a decryption method corresponding to the encryption method of the encryption means, the plurality of types of decoding means for decoding by switching a plurality of types of decoding method corresponding to each encryption method, the first test from the first authentication data and the second authentication data to the decoded Or the test value extracting means for extracting based on the second check value in the first operational mode and the second operational mode, with the expected value of the first check value and the expected value data storage means stores An intermediate authentication result data generating means for generating intermediate authentication result data indicating whether or not the authentication of the main control board based on the comparison result has been established; and the generated intermediate authentication result data in the peripheral portion An intermediate unit comprising: an intermediate side transmission unit for transmitting; a peripheral side reception unit for receiving the intermediate authentication result data from the intermediate unit; and a process for performing the predetermined process according to the received intermediate authentication result data characterized in that it and a peripheral portion having a means.

According to the peripheral board of the present invention described in claim 5 , the intermediate unit decodes the first authentication data and the second authentication data received from the main control board by switching a plurality of types of decoding methods, The first inspection value extracted from the authentication data is compared with the expected value data stored in the expected value data storage means , and an intermediate indicating whether or not the authentication of the main control board is established based on the comparison result Authentication result data can be generated and transmitted to the peripheral part. On the other hand, the peripheral unit can perform a predetermined process in the gaming machine according to the intermediate authentication result data received from the intermediate unit.

A gaming machine authentication method according to a sixth aspect of the present invention includes a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit In the gaming machine authentication method, the main control unit includes a plurality of types of individual authentication values for specifying the next encryption method from a plurality of different encryption methods of the main control unit . A first test value generating step for generating a first test value for testing one individual authentication value selected from among the first authentication methods, and an operation of the main control unit stored in the program data storage means are defined. An operation value acquisition step of acquiring an operation value that changes corresponding to the operation of the main control unit that has executed the program data, and a second inspection value for inspecting the acquired operation value by a second authentication method. Inspection value generation process and before A first authentication data generating step for generating a first authentication data by calculating one of the first inspection value and the second inspection value by a predetermined first calculation method; For the second authentication, the first inspection value different from the inspection value or the other inspection value of the second inspection value and all or a part of the one inspection value are calculated by a predetermined second calculation method. A second authentication data generation step for generating data , and the next encryption method is identified from the individual authentication value selected by the first inspection value generation step, and the plurality of types of encryption are included in the next encryption method. And an encryption step of encrypting at least one of the first authentication data generated by the first authentication data generation step and the second authentication data generated by the second authentication data generation step , before Symbol first for authentication data and the second authentication A main control side transmitting step for transmitting data to the intermediate unit, wherein the intermediate unit receives the first authentication data and the second authentication data from the main control unit, A plurality of types of decryption methods corresponding to each of the plurality of types of encryption schemes for the received first authentication data and second authentication data in a decryption scheme corresponding to the encryption scheme of the encryption step A decoding step of switching between the first authentication value and the second authentication data from the decrypted first authentication data and second authentication data, the first calculation method and the second calculation method Comparing the test value extraction step to extract based on the first test value and expected value data corresponding to each of the plurality of types of individual authentication values and corresponding to each of the plurality of types of encryption methods , The main control unit based on the comparison result An intermediate authentication result data generating step for generating intermediate authentication result data indicating whether or not authentication is established, and an intermediate side transmitting step for transmitting the generated intermediate authentication result data to the peripheral part, the peripheral The unit includes a peripheral side reception step of receiving the intermediate authentication result data from the intermediate unit, and a processing step of performing the predetermined processing in accordance with the received intermediate authentication result data.

According to the gaming machine authentication method of the present invention described in claim 6 , when the main control unit selects one individual authentication value from a plurality of types of individual authentication values, the selected individual authentication value is inspected. The first inspection value to be generated is generated by the first authentication method. When the main control unit acquires an operation value that changes in accordance with the operation of executing the program data, the main control unit generates a second inspection value for inspecting the operation value by the second authentication method. The main control unit calculates either one of the first inspection value and the second inspection value by the first calculation method to generate the first authentication data, and the first control value is different from the one inspection value. The second authentication data can be generated by calculating the other inspection value of the inspection value or the second inspection value and all or part of the one inspection value by the second operation method. Then, the main control unit encrypts the first authentication data and the second authentication data using the current encryption method and transmits the encrypted data to the intermediate unit, and from the individual authentication value used for the first inspection value, Specify the conversion method. On the other hand, the intermediate unit decodes the first authentication data and the second authentication data received from the main control unit by switching a plurality of types of decryption methods, and extracts the first inspection value and the expected value extracted from the authentication data. Comparing the expected value data stored in the data storage means , generating intermediate authentication result data indicating whether or not the authentication of the main control unit is established based on the comparison result, and transmitting it to the peripheral part it can. On the other hand, the peripheral unit can perform a predetermined process in the gaming machine according to the intermediate authentication result data received from the intermediate unit.

According to a seventh aspect of the present invention, there is provided a gaming machine authentication program comprising: a main control unit that transmits a control command; an intermediate unit; and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit. An authentication program for a gaming machine comprising: a first computer of the main control unit for specifying a next encryption method from a plurality of different encryption methods of the main control unit; First test value generation means for generating a first test value for testing one individual authentication value selected from among the individual authentication values of the types by the first authentication method, and the main control stored in the program data storage means An operation value acquisition means for acquiring an operation value that changes in accordance with the operation of the main control unit that has executed the program data defining the operation of the unit, and a second authentication value for inspecting the acquired operation value. Raw Second inspection value generating means for generating the first authentication data by calculating one of the first inspection value and the second inspection value by a predetermined first calculation method. The authentication data generating means, the second inspection value different from the one inspection value, the other inspection value of the second inspection value, and all or part of the one inspection value are predetermined second. A second authentication data generating means for calculating the second authentication data by calculating with the calculation method, and specifying the next encryption method from the individual authentication value selected by the first inspection value generating means; The plurality of types of encryption methods are switched to the encryption method of the first authentication data generated by the first authentication data generation unit and the second authentication data generated by the second authentication data generation unit. encryption means for encrypting at least one, before Symbol 1 was authentication data and the second authentication data to function as a main control side transmission means for transmitting to said intermediate portion, said second computer of the intermediate portion, said for the first certificate from the main control unit data and the second An intermediate side receiving means for receiving authentication data, and the received first authentication data and second authentication data by the decryption method corresponding to the encryption method of the encryption means, the plurality of types of encryption methods Decoding means for switching and decoding a plurality of types of decoding methods corresponding to each of the above, and the first check value or the second check value from the decoded first authentication data and second authentication data Test value extraction means for extracting based on the first calculation method and the second calculation method, each of the plurality of types of encryption methods corresponding to each of the first test value and the plurality of types of individual authentication values Expected by The comparator compares the value data, the intermediate authentication result data generating means for generating intermediate authentication result data indicating whether the main control unit authentication based on the comparison result is satisfied, the intermediate authentication result data the generated A peripheral side receiving means for causing the third computer of the peripheral part to receive the intermediate authentication result data from the intermediate part; and the received intermediate authentication result data. A game machine authentication program for functioning as processing means for performing the predetermined processing according to the above.

According to the gaming machine authentication program of the present invention described in claim 7 , the first computer of the main control unit selects and selects one individual authentication value from a plurality of types of individual authentication values. When the first test value for testing the individual authentication value is generated by the first authentication method, an operation value that changes according to the operation that executed the program data is acquired, and the second test value for testing the operation value is obtained by the second authentication. Generate by method. The first computer calculates either one of the first inspection value and the second inspection value by the first calculation method to generate the first authentication data, and the first computer is different from the one inspection value. The second authentication data can be generated by calculating the other inspection value of the inspection value or the second inspection value and all or part of the one inspection value by the second operation method. The first computer encrypts the generated first authentication data and second authentication data with the current encryption method and transmits the data to the intermediate unit, and from the individual authentication value used for the first test value, Specify the encryption method. On the other hand, the second computer in the intermediate unit decrypts the first authentication data and the second authentication data received from the main control unit by switching between a plurality of types of decryption methods, and extracts the first check data extracted from the authentication data. Value is compared with the expected value data stored in the expected value data storage means , and based on the comparison result, intermediate authentication result data indicating whether or not authentication of the main control unit has been established is generated in the peripheral part Can be sent. On the other hand, the third computer in the peripheral part can perform predetermined processing in the gaming machine according to the intermediate authentication result data received from the intermediate part.

  As described above, according to the present invention, the first authentication data is obtained by using either one of the first inspection value for inspecting the individual authentication value and the second inspection value for inspecting the operation value. Since the second authentication data is generated by using all or a part of the one inspection value and the other inspection value and is transmitted to the intermediate part when generated, the first authentication data and the second authentication data are generated. Since it is difficult for an unauthorized analyst to analyze the generation method of the data for use, the first inspection value and the second inspection value cannot be extracted, and unauthorized use of data transmitted from the main control side to the intermediate portion Can be prevented. In addition, the intermediate unit can perform individual authentication on the main control side from the first inspection values generated by two different authentication methods, and can also operate from the second inspection value on the main control side operation state, operation continuity, etc. Therefore, the intermediate part can detect that data has been used illegally by an unauthorized analyst. Furthermore, since the intermediate unit performs authentication processing for the main control side and transmits the intermediate authentication result to the peripheral unit, the peripheral unit only needs to refer to the intermediate authentication result without performing the authentication process. It is possible to reduce the processing added by the peripheral CPU. Therefore, even if the authentication process is complicated, there is no influence on the effect process by the peripheral part, so that both the improvement of security and the fun of the game can be achieved. Furthermore, when the main control side, who is the person to be authenticated, does not have a high level of processing capability, it is possible to use multiple authentication methods and calculation methods with a light processing load. Can do.

  In addition, since the first authentication data is generated by combining one of the inspection values and the additional data and transmitted to the intermediate unit, the method for generating the first and second authentication data can be made more complicated. Unauthorized use of data transmitted from the control side to the intermediate section can be prevented.

  Furthermore, since the first authentication data and the second authentication data can be added to the control command and transmitted, compared with the case where the first authentication data and the second authentication data are transmitted alone to the intermediate unit, the main control side and the intermediate unit Since the increase in the communication load during the period can be suppressed, it is possible to make it difficult for the fraud analyst to detect the transmission timing.

  In addition, since the first and second authentication data can be encrypted and transmitted from the main control side to the intermediate part, it is possible to make analysis of the first and second authentication data by an unauthorized analyst even more difficult. Unauthorized use of data transmitted from the main control side to the intermediate unit can be prevented.

  Further, the first and second authentication data are generated by switching and using a plurality of types of individual authentication values corresponding to the next encryption method known only by the main control unit, and the intermediate unit generates the first and second authentication data. Because the authentication of the main control unit is performed by comparing the individual authentication value extracted from the data and multiple types of expected value data, the encryption method of the first and second authentication data also changes depending on the selected individual authentication value Therefore, unless the unauthorized analyst can identify the individual authentication value, the decryption method of the first and second authentication data and the individual authentication value cannot be specified, and the unauthorized use of the data transmitted from the main control side to the peripheral side is further improved. It can be made more difficult. In addition, the intermediate unit can authenticate the individual authentication value just by storing the expected value data corresponding to a plurality of types of encryption methods, and can specify the next encryption method. Can be prevented from becoming complicated.

  In addition, the first and second authentication data are generated using the encryption method known only to the main control side, and the next first and second calculation methods are assigned to the encryption method, whereby the first and second authentication methods are assigned. Since the authentication data changes due to switching between multiple types of encryption methods, unless the analyst can analyze multiple types of encryption methods, analyze the first and second computation methods corresponding to the encryption method. I can't. In addition, since the main control side can arbitrarily switch the first and second calculation methods used for generating the first and second authentication data, it becomes more difficult for an unauthorized analyst to perform an unauthorized analysis. It is possible to make unauthorized use of data transmitted to the section even more difficult.

It is a front view which shows an example of the game board of the pachinko game machine of this invention. It is a block diagram which shows the internal structure of the control part of a pachinko game machine. It is a block diagram which shows the functional structure of a main control board and a peripheral board | substrate. It is a flowchart which shows a part of control process of the production | presentation control part by a main control part. It is a flowchart which shows a part of other control processing of the production | presentation control part by the main control part. It is a timing chart which shows the transmission timing of a jackpot related command. It is a flowchart which shows the procedure of the symbol variation process by an effect control part. It is a flowchart which shows the procedure of the big hit processing by an effect control part. It is a flowchart which shows the procedure of the lamp control process at the time of the symbol variation by a lamp control part. It is explanatory drawing which shows typically the data format of the control signal which a main control part outputs. It is a flowchart which shows the transmission procedure of the control signal by a main control part. It is a flowchart which shows the reception procedure of the control signal by an intermediate part. It is a flowchart which shows the reception procedure of the control signal by a peripheral part. It is a flowchart which shows the authentication processing procedure example 1 using the data for authentication. It is a flowchart which shows the authentication process procedure example 2 using the data for authentication. It is a flowchart which shows the authentication process procedure example 3 using the data for authentication. It is a flowchart which shows the authentication process procedure example 4 using the data for authentication. It is a flowchart which shows the authentication process procedure example 5 using the data for authentication. It is a flowchart which shows the authentication process procedure example 6 using the data for authentication. It is a figure for demonstrating the relationship between a multiple types of encryption system and an individual authentication value. It is a flowchart which shows the transmission procedure of the control signal by the main control part in the case of using a multiple types of encryption system. It is a flowchart which shows the reception procedure of the control signal by the intermediate | middle part in the case of using a multiple types of encryption system. It is a block diagram which shows the functional structure 2 of a main control board and a peripheral board | substrate. It is a figure for demonstrating the correspondence example of a 1st, 2nd calculation method and an encryption system. It is a flowchart which shows the transmission procedure 2 of the control signal by a main control part. It is a flowchart which shows the reception procedure 2 of the control signal by an intermediate part. It is a flowchart which shows the authentication process procedure example 11 using the data for authentication. It is a flowchart which shows the authentication process procedure example 12 using the data for authentication. It is a flowchart which shows the reception procedure 2 'of the control signal by an intermediate part. It is explanatory drawing which shows the outline | summary of the fraud prevention technique by a prior art. It is explanatory drawing which shows the example of insertion of an unauthorized control board. It is explanatory drawing which shows the outline | summary of the signal switching by a signal switching circuit.

  Referring to the accompanying drawings, the control included in a control signal between a pachinko gaming machine which is a gaming machine according to the present invention and a plurality of boards (main control board and peripheral board) mounted on the pachinko gaming machine. An embodiment suitable for an authentication method and an authentication program for authenticating a command will be described in detail.

[Example 1]
(Basic configuration of pachinko machine)
The pachinko gaming machine 100 of the present invention includes a gaming board 101 shown in FIG. A game ball fired by driving a launching portion 292 (see FIG. 2) arranged at a lower position of the game board 101 rises between the rails 102a and 102b to reach an upper position of the game board 101, and then a game area. It falls in 103. Although not shown, the game area 103 is provided with a plurality of nails for dropping the game ball in various directions. In the game area 103, a windmill and a winning opening for changing the fall direction of the game ball are arranged at a position in the middle of the fall of the game ball.

  A symbol display unit 104 is arranged at the center of the game area 103 of the game board 101. For example, a liquid crystal display (LCD) is used as the symbol display unit 104. The symbol display unit 104 is not limited to the LCD, and a CRT, a plurality of drums, and the like can be used. Below the symbol display unit 104, a start winning port 105 for starting winning is arranged. Winning gates 106 are arranged on the left and right of the symbol display unit 104, respectively.

  The winning gate 106 is provided in order to detect the passing of the falling game ball and perform a lottery to open the start winning opening 105 for a predetermined time. A normal winning opening 107 is disposed on the side of the symbol display unit 104 or below. When a game ball wins the normal winning opening 107, the pachinko gaming machine 100 pays out the number of winning balls (for example, 10) at the time of the normal winning. At the bottom of the game area 103, there is provided a collection port 108 for collecting game balls that have not won any winning ports.

  The symbol display unit 104 described above starts changing the display of a plurality of symbols when a game ball wins a specific winning opening (at the time of starting winning), and stops changing the display of symbols after a predetermined time. When the specific symbols (for example, “777”, etc.) are aligned at the time of this stop, the pachinko gaming machine 100 becomes a big hit state. The pachinko gaming machine 100, when in the big hit state, opens the big winning opening 109 located below the gaming board 101 for a certain period, and repeats the opening for a predetermined round (for example, 15 rounds), thereby winning the big winning opening 109. The number of prize balls corresponding to the game balls won in is paid out.

  The pachinko gaming machine 100 includes a control unit 200 shown in FIG. The control unit 200 includes a main control unit 201, an intermediate unit 202A, an effect control unit 202B, and a prize ball control unit 203. The main control unit 201 corresponds to the main control board of the present invention. The intermediate part 202A and the effect control part 202B are integrally provided on the peripheral board. And the main control part 201 controls the basic operation | movement concerning the game of the pachinko gaming machine 100. The intermediate unit 202A is interposed between the main control unit 201 and the production control unit 202B as a communication relay unit from the main control unit 201 to the production control unit 202B, and the data received from the main control unit 201 is produced by the production control unit 202B. Send to. Intermediate unit 202A authenticates main control unit 201, and transmits the authentication result to effect control unit 202B. Then, the production control unit 202B controls the production operation during the game. The prize ball control unit 203 controls the number of prize balls to be paid out.

  The main control unit 201 includes a CPU 211, a ROM 212, a RAM 213, and an interface (I / F) 214. Based on the program data stored in the ROM 212, the CPU 211 executes basic processing as the game content progresses. The ROM 212 has a storage area for storing program data and the like. The RAM 213 functions as a data work area when the CPU 211 performs arithmetic processing. The I / F 214 receives various data from each of the detection units 221 to 224 and transmits the various data to the effect control unit 202B and the prize ball control unit 203. The main control unit 201 realizes its function by, for example, a so-called main control board.

  On the input side of the main control unit 201, a start winning port detection unit 221 that detects a winning ball that has won a winning winning port 105, a gate detection unit 222 that detects a game ball that has passed through the winning gate 106, and a normal win A normal winning opening detection unit 223 that detects a game ball that has won a prize in the mouth 107 and a large winning opening detection part 224 that detects a winning ball that has won a prize winning hole 109 are electrically connected via an I / F 214. ing. These detection units can be configured using proximity switches or the like.

  A large winning opening / closing unit 225 is electrically connected to the output side of the main control unit 201, and the main control unit 201 controls opening / closing of the large winning port opening / closing unit 225. The special prize opening / closing unit 225 has a function of opening the special prize opening 109 for a certain period of time in a big hit, and can be configured using a solenoid or the like. This jackpot is pre-programmed to occur with a predetermined probability (for example, 1/300) based on the generated random number (random number for jackpot determination).

  The intermediate unit 202 </ b> A includes a CPU 231, a ROM 232, a RAM 233, and an interface (I / F) 234. The CPU 231 performs processing associated with the authentication of the main control unit 201 based on the program data stored in the ROM 232. The ROM 232 has a storage area for storing the program data and the like. The RAM 233 functions as a data work area when the CPU 211 performs arithmetic processing. The I / F 234 receives various data from the main control unit 201 and transmits various data to the effect control unit 202B.

  The effect control unit 202B receives control signals including various control commands from the main control unit 201, and executes the program data stored in the ROM 242 based on these commands to perform effect control during the game. The effect control unit 202B includes a CPU 241, a ROM 242, a RAM 243, a VRAM 244, and an interface (I / F) 245. The CPU 241 executes an effect process corresponding to the pachinko gaming machine 100. The RAM 243 functions as a data work area during the CPU 241 rendering process. The VRAM 244 stores image data to be displayed on the symbol display unit 104. The I / F 245 receives various data from the intermediate unit 202A and transmits various data to the lamp control unit 251 and the voice control unit 252. The effect control unit 202B is realized by the same peripheral board together with the intermediate unit 202A. In addition, the above-described symbol display unit (LCD) 104, lamp control unit 251, and voice control unit 252 are electrically connected to the output side of the effect control unit 202B via the I / F 245. The lamp control unit 251 controls lighting of the lamp 261. In addition, the audio control unit 252 controls the output of audio or the like of the speaker 262.

  The prize ball control unit 203 receives control signals including various control commands from the main control unit 201, and executes program data stored in the ROM 282 based on these commands to perform prize ball control. The prize ball control unit 203 includes a CPU 281, a ROM 282, a RAM 283, and an interface (I / F) 284. The CPU 281 executes prize ball control processing. The RAM 283 functions as a data work area when the CPU 281 performs arithmetic processing. The I / F 284 receives various data from the main control unit 201 and transmits / receives various data to / from the launching unit 292. The prize ball control unit 203 realizes its function by a so-called prize ball substrate, for example.

  The prize ball control unit 203 performs control for paying out the number of prize balls at the time of winning a prize to the payout unit 291 connected via the I / F 284. The award ball control unit 203 detects an operation of launching a game ball with respect to the launch unit 292 and controls the launch of the game ball in the launch unit 292. The payout unit 291 includes a motor for paying out a predetermined number from the game ball storage unit. The winning ball control unit 203 controls the paying unit 291 to pay out the number of winning balls corresponding to the game balls won in each winning port (start winning port 105, normal winning port 107, large winning port 109). Do.

  The launcher 292 launches a game ball for a game, and includes a sensor that detects a game operation by the player, a solenoid that launches the game ball, and the like. When the prize ball control unit 203 detects a game operation by the sensor of the launch unit 292, the prize ball control unit 203 intermittently fires a game ball by driving a solenoid or the like in response to the detected game operation, and the game area 103 of the game board 101 A game ball is sent out.

  The main control unit 201, the intermediate unit 202A, the effect control unit 202B, and the prize ball control unit 203 having the above-described configuration are provided on different printed boards (main control board, effect board, and prize ball board), respectively. The effect board and the prize ball board correspond to the peripheral board of the present invention.

  The configuration of the board of the pachinko gaming machine 100 is not limited to this. For example, the prize ball control unit 203 is provided on the same printed circuit board as the main control unit 201 or the intermediate unit 202A and the effect control unit 202B. Different configurations can be used. Further, the intermediate unit 202A and the effect control unit 202B are configured to mount one printed circuit board on the other printed circuit board instead of the structure realized by the same printed circuit board, and electrically connect a separate printed circuit board with a cable or the like. It can be set as various embodiments like the structure connected to this.

(Functional configuration of main control board and peripheral board)
First, a functional configuration of the main control board 310 having a function as the main control unit 201 will be described with reference to FIG. The main control board 310 is a functional unit that transmits a control command for operating the peripheral board 320, and includes a data storage unit 311, a first inspection value generation unit 312, an operation value acquisition unit 313, and a second inspection value generation unit 314. A first authentication data generation unit 315, a second authentication data generation unit 316, an encryption processing unit 317, and a main control side transmission unit 318. The main control board 310 is electrically connected so as to communicate with the intermediate portion 202A of the peripheral board 320.

  The data storage unit 311 is, for example, various data such as program data that defines the operation of the CPU 211 of the main control unit 201, an individual authentication value that will be described later, and an operation value that changes according to the operation of the CPU 211 that executed the program data. Is remembered. That is, in the present embodiment, the data storage unit 311 functions as the program data storage unit of the present invention. As the data storage unit 311, for example, a part of the ROM 212 and RAM 213 (see FIG. 2) of the main control unit 201 can be used.

  Here, the operation value is a value that allows the peripheral substrate 320 to authenticate whether the main control board 310 is in a predetermined operation. Examples of operation values include the number of authentication processes, the process number of the program function, and the like. Specifically, when the number of authentication processes is an operation value, if the first authentication process to the tenth authentication process is one cycle, 1, 2,..., 10 change sequentially as one cycle, From the eleventh authentication process to the twentieth authentication process, the numbers sequentially change to 1, 2,. By repeatedly using only the values 1 to 10 in this way, the operation value can be made a small value, but instead, for example, the operation value can be made a serial number or the like.

  If the process number of the program function is an operation value, and if the process 1 → process 3 → process 4 → process 2 → process 5 is a normal transition, the transition number is 1, 3, 4, 2, 5 It is possible to adopt various different embodiments, such as using the number as an operation value, using a plurality of transition numbers for a predetermined number of times as an operation value, and using a calculated value obtained by calculating a plurality of transition numbers for a predetermined number of times as an operation value. it can. In the present embodiment, the CPU 211 realizes the function of generating the operation value by initial processing or the like and storing it in the data storage unit 311 and updating the operation value according to the operation of the main control board 310 by the program data. Like to do.

  For example, when the pachinko gaming machine 100 performs a series of processes such as an outlier process, a jackpot reach process, a jackpot start process, a jackpot round process, a jackpot end process, and a breakout process, the above transition number 1 is out of the process, the transition number By assigning 3 to jackpot reach processing, transition number 4 to jackpot start processing, transition number 2 to jackpot round processing, and transition number 5 to jackpot end processing, the transition numbers change to 1, 3, 4, 2, and 5 respectively. It will be. Therefore, when the transition number is used as an operation value, it is possible to inspect whether or not the main control unit 201 has performed an illegal process by inspecting whether or not the operation value transitions in a normal order. .

  The first inspection value generation unit 312 corresponds to a first inspection value generation unit of the present invention, and generates a first inspection value for inspecting the individual authentication value of the main control unit 201 by the first authentication method, and the data storage unit 311. To remember. Examples of the individual authentication value include a predetermined authentication code, identification code, identification command, and the like. And as a 1st authentication system, well-known error detection methods, such as a checksum, a parity check, a hamming code check, CRC (cyclic redundancy check), can be used, for example. That is, since the first inspection value is a value obtained by calculating the individual authentication value by the first authentication method, the fraud analyst cannot analyze the first inspection value unless the first authentication method is found. As the individual authentication value, for example, an arithmetic value calculated by a desired arithmetic expression based on extraction data extracted from the program data with a predetermined extraction pattern may be used.

  The operation value acquisition unit 313 corresponds to the operation value acquisition means of the present invention, and acquires from the data storage unit 311 an operation value that changes in accordance with the operation of the CPU 211 of the main control unit 201 that executed the program data. The operation value acquisition unit 313 acquires an operation value when generating a second inspection value to be described later, and acquires the operation value at a predetermined acquisition timing (for example, at the end of a predetermined operation, holding a predetermined operation, etc.). It can be set as various different embodiments.

  The second inspection value generation unit 314 corresponds to a second inspection value generation unit of the present invention, and generates a second inspection value for inspecting the operation value acquired by the operation value acquisition unit 313 using the second authentication method. Store in the storage unit 311. As the second authentication method, a known error detection method such as a checksum, parity check, hamming code check, CRC (Cyclic Redundancy Check), etc. can be used as in the first authentication method described above. That is, since the second inspection value is a value obtained by calculating the operation value by the second authentication method, an unauthorized analyst cannot analyze the second inspection value unless the second authentication method is known. Further, different authentication methods may be set for the first authentication method and the second authentication method, or the same authentication method may be set.

  As described above, the first inspection value and the second inspection value employ two different first authentication methods and second authentication methods. The first and second authentication methods are determined in advance between the main control unit 201 and the peripheral unit. In addition, by using the first and second authentication methods with a light processing load (generation load), even if the person to be authenticated (main control unit) does not have advanced processing capability, the security strength is improved. be able to.

  The first authentication data generation unit 315 corresponds to the first authentication data generation means of the present invention, and uses either a first inspection value or a second inspection value as a predetermined first calculation method. The first authentication data is generated by calculation. For example, the first authentication data generation unit 315 generates the first authentication data by performing the calculation indicated by the first calculation method on one inspection value, and the first authentication data is generated on the peripheral board 320. By transmitting to the intermediate section 202A, one inspection value is prevented from being transmitted as it is to the peripheral board 320. As an example of the first calculation method, a calculation method for calculating addition, subtraction, integration, division, and exclusive OR of one inspection value and a constant or additional data, or a predetermined one from the inspection value. An arithmetic method for calculating based on a functional expression can be used.

  The second authentication data generation unit 316 corresponds to a second authentication data generation unit of the present invention, and is different from the first inspection value or the other inspection value of the second inspection value and the second inspection value. The second authentication data is generated by calculating all or part of one of the inspection values using a predetermined second calculation method. For example, the second authentication data generation unit 316 generates the second authentication data by performing the calculation indicated by the second calculation method on the other inspection value, and uses the second authentication data as the peripheral board 320. By transmitting to the intermediate part 202A, the other inspection value is prevented from being transmitted to the peripheral board 320 as it is. As the second calculation method, the various calculation methods described in the first calculation method can be used. The second calculation method can be variously different embodiments such as setting the same calculation method as the first calculation method or setting different calculation methods for each.

  In the present embodiment, the first authentication data and the second authentication data are generated based on the first and second inspection values, and the main control unit 201 is verified by collating the first and second inspection values with a predetermined expected value. It is determined whether or not authentication is established. Instead of this embodiment, the first and second inspection values themselves may be used as the first and second authentication data.

  The encryption processing unit 317 encrypts the first authentication data and the second authentication data with the peripheral substrate 320 by a predetermined encryption method. When encryption is not required between the main control board 310 and the peripheral board 320, the encryption processing unit 317 is deleted from the configuration of the main control board 310, and the first authentication data and the second authentication data. Is transmitted from the main control side transmitting unit 318 to the intermediate unit 202A of the peripheral board 320 as it is.

  The main control side transmission unit 318 corresponds to the transmission means of the present invention, and the first authentication data generated by the first authentication data generation unit 315 and the second authentication data generated by the second authentication data generation unit 316. Is transmitted to the intermediate portion 202A of the peripheral substrate 320. Then, the main control-side transmitting unit 318 adds the first authentication data and the second authentication data to the control signal transmitted from the main control board 310 to the peripheral board 320, for example, for the first and second authentication. Data is transmitted to the intermediate portion 202A of the peripheral board 320.

  The pachinko gaming machine 100 of the present invention has, as two authentication elements, a first inspection value for authenticating the validity of the main control unit 201 and a second inspection value for authenticating the operation continuity of the main control unit 201. And are adopted. The pachinko gaming machine 100 uses the first inspection value to verify whether or not the main control unit 201 is legitimate. The pachinko gaming machine 100 uses the second inspection value during the operation to verify whether or not unauthorized switching for impersonation has occurred. Then, the pachinko gaming machine 100 authenticates by combining two authentication factors, thereby improving security and reusing the first and second authentication data transmitted from the main control unit 201 to the peripheral unit. Is preventing.

  Next, a functional configuration of the peripheral board 320 having a function as a peripheral part such as the above-described effect control unit 202B will be described. As shown in FIG. 3, the peripheral board 320 includes an intermediate portion 202A and a peripheral portion (effect control portion) 202B. The peripheral substrate 320 is configured such that the intermediate portion 202A and the peripheral portion 202B can communicate with each other. In this embodiment, the peripheral board 320 having the intermediate section 202A and the effect control section 202B will be described. Alternatively, a peripheral board having the intermediate section 202A and the prize ball control section 203 may be used. it can.

  Next, the intermediate unit 202A includes an intermediate side reception unit 321, an expected value storage unit 322, a decoding processing unit 323, a test value extraction unit 324, an intermediate authentication result data generation unit 325, and an intermediate side transmission unit 326. doing.

  The intermediate receiving unit 321 corresponds to the intermediate receiving unit of the present invention, and receives the first and second authentication data transmitted by the main control board 310. The intermediate receiving unit 321 according to the present embodiment receives the first and second authentication data from the main control board 310 by receiving a control signal to which the first and second authentication data are added, for example.

  The expected value storage unit 322 stores a plurality of expected value data such as a first expected value and a second expected value corresponding to the first inspection value and the second inspection value to be received from the main control board 310 described above. . That is, the expected value storage unit 322 stores in advance the first and second inspection values generated by the regular main control board 310 as the first and second expected values. If the inspection values match, it can be determined that the first and second normal inspection values have been received. If the first and second expected values do not match the first and second test values, it can be determined that the first and second incorrect test values have been received.

  The decryption processing unit 323 is a decryption method corresponding to the encryption method used in the encryption processing unit 317 of the main control board 310 described above, and the first and second received from the main control board 310 by the intermediate side reception unit 321. Decrypt authentication data. If encryption is not required between the main control board 310 and the peripheral board 320, the decryption processing unit 323 is deleted from the configuration of the peripheral board 320, and the intermediate receiving unit 321 and the inspection value extraction unit 324 are Connect directly.

  The inspection value extraction unit 324 corresponds to the inspection value extraction unit of the present invention, and the first inspection value or the second inspection value is first determined from the first authentication data and the second authentication data received by the intermediate receiving unit 321. Extraction is performed based on the calculation method and the second calculation method. Specifically, the inspection value extraction unit 324 performs reverse operation using the above-described first and second calculation methods to extract the first and second inspection values from each of the first and second authentication data.

  The intermediate authentication result data generation unit 325 corresponds to the intermediate authentication result data generation means of the present invention, and a first expected value and a second predetermined value corresponding to each of the first inspection value or the second inspection value. The expected value is compared with the first inspection value and the second inspection value extracted by the inspection value extraction unit 324, and authentication of the main control board 310 (main control unit) is established based on the comparison result. Intermediate authentication result data indicating whether or not the authentication has been performed is generated. That is, the intermediate authentication result data indicates an authentication result as to whether or not the intermediate unit 202A has authenticated the main control unit 201, and the first and second expected values coincide with the first inspection value and the second inspection value. In this case, the authentication of the main control board 310 is established, and when they do not match, the authentication is not established.

  The intermediate transmission unit 326 corresponds to the intermediate transmission unit of the present invention, and transmits the intermediate authentication result data generated by the intermediate authentication result data generation unit 325 to the peripheral unit 202B. Then, the intermediate transmission unit 326 transmits the intermediate authentication result data to the peripheral unit 202B, for example, by adding the intermediate authentication result data to the control signal transmitted to the peripheral unit 202B.

  Next, the peripheral unit 202B includes a peripheral side receiving unit 331 and a processing unit 332.

  The peripheral side receiving unit 331 corresponds to the peripheral side receiving means of the present invention, and receives the intermediate authentication result data and the like transmitted by the intermediate unit 202A of the peripheral board 320. The peripheral side reception unit 331 of the present embodiment receives the intermediate authentication result data from the intermediate unit 202A, for example, by receiving a control signal to which the intermediate authentication result data is added.

  The processing unit 332 corresponds to the processing means of the present invention, and performs predetermined processing in the pachinko gaming machine 100 according to the intermediate authentication result data received from the intermediate unit 202A. The processing unit 332 performs the predetermined process when the intermediate authentication result data indicates that authentication is established, and performs notification when the authentication is not established. Note that the predetermined processing is performed in accordance with a control command from the main control unit 201 in the pachinko gaming machine 100, for example, processing such as loss processing, jackpot reach processing, jackpot start processing, jackpot round processing, jackpot end processing, etc. Is mentioned.

  In the present embodiment, a description will be given of a configuration in which data communicated between the intermediate unit 202A and the peripheral unit 202B is transmitted without encryption. However, as described in the main control board 310 and the intermediate unit 202A described above. In addition, data may be encrypted and transmitted between the intermediate unit 202A and the peripheral unit 202B.

  In the present embodiment, the CPU 211 of the main control board 310 is the first computer in the claims, the CPU 231 of the peripheral board 320 is the second computer in the claims, and the CPU 241 of the peripheral board 320 is the third computer in the claims. The case of making it function is demonstrated. The ROM 212 of the main control board 310 includes a first inspection value generation unit, an operation value acquisition unit, a second inspection value generation unit, a first authentication data generation unit, and a second authentication unit. A main control side authentication program for functioning as various means such as data generation means and main control side transmission means is stored. The ROM 232 of the intermediate portion 202A of the peripheral board 320 includes an intermediate receiving unit, a decoding unit, an inspection value extracting unit, an intermediate authentication result data generating unit, an intermediate transmitting unit, etc. An intermediate authentication program for functioning as various means is stored. The ROM 242 of the peripheral portion 202B of the peripheral board 320 stores a peripheral side authentication program for causing the third computer to function as various means such as peripheral side receiving means and processing means. That is, the authentication program of the present invention is constituted by the main control side authentication program, the intermediate side authentication program, and the peripheral side authentication program.

(Basic operation of pachinko machines)
An example of the basic operation of the pachinko gaming machine 100 configured as described above will be described. The main control unit 201 outputs the winning status of the game ball for each winning port to the winning ball control unit 203 as a control command. The winning ball control unit 203 pays out the number of winning balls corresponding to the winning situation in accordance with the control command output from the main control unit 201.

  The main control unit 201 outputs a corresponding control command to the effect control unit 202B via the intermediate unit 202A every time a game ball wins the start winning opening 105, and the effect control unit 202B displays the symbol display unit 104. Repeatedly stop and display the symbol of. The main control unit 201 outputs a corresponding control command to the effect control unit 202B when the occurrence of the jackpot is determined, and the effect control unit 202B aligns with a predetermined symbol and stops the variable display, Control is performed to open the special winning opening 109. The effect control unit 202B performs various effect displays on the symbol display unit 104 in addition to the symbol variation display during the jackpot occurrence period and during the reach until the jackpot occurrence or at the time of the reach notice. . In addition, effects such as specific driving for various types of accessories and correction of the display state of the lamp 261 are performed.

  Then, the main control unit 201 opens the big prize opening 109 a plurality of times during the jackpot occurrence period. For example, 15 rounds are repeatedly executed as one open is one round. The period of one round is a period until 10 game balls are won in the big winning opening 109, for example, or a predetermined period (for example, 30 seconds). At this time, the winning ball control unit 203 pays out with, for example, 15 winning balls per winning game ball to the big winning opening 109. The pachinko gaming machine 100 releases the jackpot state after the jackpot ends and returns to the normal gaming state.

(Details of processing by each control unit)
Next, details of various processes performed by each control unit will be described. First, control processing of the effect control unit 202B by the main control unit 201 will be described. 4 to 9, the authentication data and the accompanying data are not considered in order to clarify the control processing procedure of the effect control unit 202B. That is, in the description of FIGS. 4 to 9, “send a command” means “send a control signal including data (control command data) indicating the command”. The presence or absence of data is not considered.

  The main control unit 201 determines in step S401 shown in FIG. 4 whether or not the pachinko gaming machine 100 is powered on. When the main control unit 201 determines that the power is not turned on (S401: No), the main control unit 201 waits until the pachinko gaming machine 100 is turned on by repeating this determination process. On the other hand, when the main control unit 201 determines that the power is turned on (S401: Yes), the main control unit 201 proceeds to the process of step S402.

  In step S402, the main control unit 201 transmits a power-on command to each peripheral unit such as the effect control unit 202B and the prize ball control unit 203, and the process proceeds to step S403. When the power-on command is transmitted by this processing, the effect control unit 202B controls the lamp control unit 251, the sound control unit 252, and the symbol display unit 104 for effect control at the time of power-on (specifically, Transmits a control command instructing lighting of a lamp, sound output, display of a demonstration (demo) screen, and the like.

  In step S <b> 403, the main control unit 201 refers to the unlottery winning number data stored in the ROM 212 or the RAM 213, and determines whether or not the unlotted winning number is zero. The number of undrawn winnings is the number obtained by subtracting the number of times that a lottery corresponding to the winning ball has been performed (number of already drawn lots) from the number of winning balls detected at the start winning opening 105 (number of winnings). If the main control unit 201 determines that the number of undrawn winning prizes is not zero (S403: No), the process proceeds to step 410. On the other hand, if the main control unit 201 determines that the number of undrawn winning prizes is zero (S403: Yes), in step S404, the main control unit 201 measures the time elapsed since the demonstration was started, and proceeds to the process of step S405. To do.

  The main control unit 201 determines whether or not a predetermined time has elapsed since the demonstration was started. If the main control unit 201 determines that the predetermined time has not elapsed since the demonstration was started (S405: No), the main control unit 201 proceeds to the process of step S407. On the other hand, if the main control unit 201 determines that a predetermined time has elapsed since the demonstration was started (S405: Yes), in step S406, the main control unit 201 transmits a customer waiting demonstration command to the effect control unit 202B, and the process of step S407 Migrate to

  In step S407, the main control unit 201 determines whether or not a winning ball has been detected by the start winning port detection unit 221. If the main control unit 201 determines that no winning ball has been detected (S407: No), the main control unit 201 returns to the process of step S404 and repeats a series of processes. On the other hand, when determining that a winning ball has been detected (S407: Yes), the main control unit 201 clears the time measured since the demonstration was started in step S408, and in step S409, the number of undrawn winning prizes 1 is added to and the process proceeds to step S410. In step S410, the main control unit 201 obtains a jackpot determination random number. In step S411, the main control unit 201 subtracts 1 from the number of undrawn winning prizes, and proceeds to the process of step S412 shown in FIG.

  In step S412, the main control unit 201 determines whether or not the jackpot determination random number is a jackpot random number. If the main control unit 201 determines that it is a jackpot random number (S412: Yes), in step S413, the main control unit 201 transmits a jackpot reach command (symbol variation command) to the effect control unit 202B. In step S414, the main control unit 201 determines whether the symbol variation time has elapsed. When determining that the symbol variation time has not elapsed (S414: No), the main control unit 201 repeats this determination process to wait for the symbol variation time to elapse. On the other hand, when the main control unit 201 determines that the symbol variation time has elapsed (S414: Yes), in step S415, the main control unit 201 transmits a symbol stop command to the effect control unit 202B, and proceeds to the process of step S416.

  In step S416, the main control unit 201 transmits a jackpot start command to the effect control unit 202B. Subsequently, in step S417, the main control unit 201 sequentially transmits commands corresponding to each of the rounds in the jackpot to the effect control unit 202B. To do. Then, when transmission of the jackpot command for all the rounds is completed, the main control unit 201 transmits a jackpot end command to the effect control unit 202B in step S418, and the process proceeds to step S422.

  If the main control unit 201 determines in step S412 that the random number is not a big hit random number (S412: No), in step S419, the main control unit 201 transmits a loss reach command (symbol variation command) to the effect control unit 202B. Transition to processing. In step S420, the main control unit 201 determines whether the symbol variation time has elapsed. When determining that the symbol variation time has not elapsed (S420: No), the main control unit 201 repeats this determination process to wait for the symbol variation time to elapse. On the other hand, if the main control unit 201 determines that the symbol variation time has elapsed (S420: Yes), in step S421, the main control unit 201 transmits a symbol stop command to the effect control unit 202B, and proceeds to the process of step S422.

  In step S422, the main control unit 201 determines whether or not the pachinko gaming machine 100 is powered off. When determining that the power is not turned off (S422: No), the main control unit 201 returns to the process of step S403 shown in FIG. 4 and repeats a series of processes. On the other hand, if the main control unit 201 determines that the power is turned off (S422: Yes), in step S423, the main control unit 201 transmits an end process command to the effect control unit 202B, and ends the process according to this flowchart.

  Next, referring to the drawing of FIG. 6 for an example of the transmission timing of the jackpot related commands (jackpot reach command, jackpot start command, jackpot command, jackpot end command) from the main control unit 201 to the effect control unit 202B in the pachinko gaming machine 100 To explain.

  The jackpot reach command is sent more frequently and randomly than the actual jackpot occurs. The jackpot start command is transmitted only once when shifting to the jackpot state when a jackpot is actually generated. The jackpot command is continuously transmitted for each round after shifting to the jackpot state. The jackpot end command is transmitted only once when all rounds of the jackpot state are completed and the normal state is entered.

  In the following, a process for a jackpot reach command (when a jackpot reach command (see step S413 in FIG. 5) or a loss reach command (see step S419 in FIG. 5) is received) and a jackpot reach process will be described.

  First, the symbol variation process by the effect control unit 202B will be described with reference to the flowchart shown in FIG. The symbol variation process is one of predetermined processes in the effect control unit (peripheral unit) 202B.

  The effect control unit 202B determines whether or not a symbol variation command is received from the main control unit 201 in step S701 shown in FIG. When it is determined that the symbol variation command has not been received (S701: No), the effect control unit 202B waits for the symbol variation command to be received by repeating this determination process. On the other hand, if it is determined that the symbol change command has been received (S701: Yes), the effect control unit 202B acquires a random effect selection random number in step S702, and in step S703, the variable effect is selected based on the acquired random number. The type is selected, and the process proceeds to step S704. In step S704, the effect control unit 202B transmits an effect start command for each variable effect to the lamp control unit 251 and the audio control unit 252, and the process proceeds to step S705.

  In step S705, the effect control unit 202B determines whether the effect time has elapsed. When the effect control unit 202B determines that the effect time has elapsed (S705: Yes), the effect control unit 202B proceeds to the process of step S707. On the other hand, when it is determined that the effect time has not elapsed (S705: No), the effect control unit 202B determines whether or not a symbol stop command has been received from the main control unit 201 in step S706. And when it determines with the effect control part 202B not receiving the symbol stop command (S706: No), it returns to the process of step S705 and repeats a series of processes. On the other hand, when determining that the symbol stop command has been received (S706: Yes), the effect control unit 202B transmits the effect stop command to the lamp control unit 251 and the voice control unit 252 in step S707, and according to this flowchart. The process ends.

  Next, the big hitting process by the effect control unit 202B will be described with reference to the flowchart shown in FIG. The big hit time process is one of the predetermined processes in the effect control unit (peripheral part) 202B.

  The effect control unit 202B determines whether or not a jackpot start command (see step S416 in FIG. 5) is received from the main control unit 201 in step S801 shown in FIG. When it is determined that the jackpot start command has not been received (S801: No), the effect control unit 202B waits for reception of the jackpot start command by repeating this determination process. On the other hand, if it is determined that the jackpot start command has been received (S801: Yes), the effect control unit 202B transmits a jackpot start processing command to the lamp control unit 251 and the voice control unit 252 in step S802, and step S803. Move on to processing.

  In step S803, the effect control unit 202B determines whether or not a round-by-round jackpot command (see step S417 in FIG. 5) has been received from the main control unit 201. When it is determined that the jackpot command has not been received (S803: No), the effect control unit 202B repeats this determination process to wait for the jackpot command to be received. On the other hand, when it is determined that the jackpot command has been received (S803: Yes), the effect control unit 202B has a round corresponding to the round jackpot command received by the lamp control unit 251 or the voice control unit 252 in step S804. Another processing command is transmitted, and the process proceeds to step S805.

  In step S805, the effect control unit 202B determines whether or not a jackpot end command (see step S418 in FIG. 5) has been received from the main control unit 201. When it is determined that the jackpot end command has not been received (S805: No), the effect control unit 202B waits for the reception of the jackpot end command by repeating this determination process. On the other hand, if it is determined that the jackpot end command has been received (S805: Yes), the effect control unit 202B transmits a jackpot end processing command to the lamp control unit 251 and the voice control unit 252 in step S806, and this flowchart. The process by is terminated.

  Next, lamp control processing by the lamp control unit 251 will be described with reference to a flowchart shown in FIG. Here, a process when an effect start command is received from the effect control unit 202B (during symbol variation) will be described. Then, the lamp control unit 251 determines whether or not an effect start command is received from the effect control unit 202B in step S901 illustrated in FIG. When it is determined that the effect start command has not been received (S901: No), the lamp control unit 251 waits for the reception of the effect start command by repeating this determination process. On the other hand, if the lamp control unit 251 determines that an effect start command has been received (S901: Yes), in step S902, the command-specific data prepared in advance for each command is read, and the process proceeds to step S903.

  In step S903, the lamp control unit 251 executes a selection routine for each command, sets lamp data corresponding to the received effect start command in step S904, and outputs lamp data to the lamp 261 in step S905. Then, the process proceeds to step S906. In this process, the lamp 261 is turned on or off based on the lamp data.

  In step S906, the lamp control unit 251 determines whether or not an effect stop command has been received from the effect control unit 202B. When it is determined that the effect stop command has not been received (S906: No), the lamp control unit 251 waits for the reception of the effect stop command by repeating this determination process. On the other hand, if the lamp control unit 251 determines that an effect stop command has been received (S906: Yes), in step S907, the lamp control unit 251 stops the output of the lamp data and ends the process according to this flowchart.

  Note that although the processing of the lamp control unit 251 is shown in FIG. 9, the sound control by the sound control unit 252 is almost the same as the processing of FIG. The voice control process by the voice control unit 252 may be performed by replacing “lamp data” in steps S904, S905, and S907 with “voice data” in the process of FIG.

(Control signal data format)
Next, a normal control signal and a control signal with authentication data output from the main control unit 201 to the intermediate unit 202A, an intermediate authentication result control signal output from the intermediate unit 202A to the peripheral unit (production control unit) 202B, An example will be described.

  In FIG. 10, a normal control signal 1010 has control command data 1001 and accompanying data 1002. The control command data 1001 is data unique to each command such as a reach command, a jackpot start command, a round command, and the like. The accompanying data 1002 is data accompanying the control command data 1001, and is data necessary for processing based on the control command data 1001 such as the number of winning game balls, for example.

  The control signal with authentication data 1020 includes authentication data 1003 in addition to the control command data 1001 and the accompanying data 1002. The authentication data 1003 is the first authentication data and the second authentication data of the present invention described above, and is generated as follows using the first calculation method or the second calculation method described above.

(Method for generating authentication data)
As described above, using the first inspection value A and the second inspection value B, the first arithmetic expression (method) H1, and the second arithmetic expression (method) H2, the first authentication data V1 and the second authentication data. An example of generating V2 will be described.

  First, the first inspection value A is an inspection value for inspecting an individual authentication value (for example, a checksum) of the main control unit 201 at the peripheral portion, and is generated by calculation using the first authentication method described above. The second inspection value B is an inspection value for inspecting the operation value of the main control unit 201 at the peripheral portion, and is generated by calculation using the above-described second authentication method. At this time, the first authentication data V1 and the second authentication data V2 are generated as follows using arithmetic expressions (methods) H1 and H2.

An arithmetic expression H1 using two parameters of the first inspection value A and the additional data C can be expressed by Expression 1.
First authentication data V1 = H1 (A, C) (Expression 1)
H1 (): Arithmetic expression for generating first authentication data C: Additional data (a value that can be arbitrarily set, such as a counter value or a random number)
Equation 1 may be the first authentication data V1 = H1 (A).

An arithmetic expression H2 using two parameters of the second inspection value B and the first inspection value A can be expressed by Expression 2.
Second authentication data V2 = H2 (B, A) (Expression 2)
H2 (): Arithmetic Expression for Generating Second Authentication Data Note that Expression 2 can be expressed as second authentication data V2 = H2 (B, C) or second authentication data V2 = H2 (B, A + C). ).

  When the arithmetic expressions (methods) H1 and H2 of the present embodiment are addition (+), the first authentication data V1 = A + C and the second authentication data V2 = B + A. When the arithmetic expressions (methods) H1 and H2 are subtraction (−), the first authentication data V1 = A−C and the second authentication data V2 = B−A. The arithmetic expressions (methods) H1 and H2 can also be arithmetic expressions that calculate addition, division, and exclusive OR. Furthermore, the arithmetic expressions (methods) H1 and H2 can be predetermined function expressions that can be inversely calculated.

  Therefore, the intermediate unit 202A stores the arithmetic expressions (methods) H1 and H2 used by the main control unit 201 and the additional data C in advance, so that these data and the first authentication received from the main control unit 201 are stored. The first inspection value A and the second inspection value B can be extracted by reversely calculating the data V1 for authentication and the second authentication data V2.

  In this embodiment, in order to simplify the description, a case will be described in which the arithmetic expressions (methods) H1 and H2 perform calculations using two parameters. Instead, for example, two inspection values and an additional value are added. An arithmetic expression (method) using three or more parameters such as data can also be used. When three or more parameters are used, the calculation and inverse calculation methods can be realized by making an agreement between the main control unit 201 and the peripheral unit in advance.

Further, when the first inspection value A and the second inspection value B, which are the parameters of the above-described (Expression 1) and (Expression 2), are changed, the following arithmetic expressions (Expression 1) ′ and (Expression 2) ′ are transformed. You can also.
First authentication data V1 = H1 (B, C) (Expression 1) ′
Second authentication data V2 = H2 (A, B) (Expression 2) ′

  Therefore, the inspection values included in the first authentication data V1 and the second authentication data V2 can be changed according to the order in which the first inspection value A and the second inspection value B are used. In the following description, in the case of (Formula 1), the first authentication data V1c = H1c (A, C), and in the case of (Formula 2), the second authentication data V2s = H2s (B, A), (Formula 1 ) ′ Is defined as first authentication data V1s = H1s (B, C), and (Expression 2) ′ is defined as second authentication data V2c = H2c (A, B).

(Specific example 1 of authentication method)
Next, a specific example in which authentication is performed by generating the first and second authentication data V1c and V2s using the above-described calculation methods of (Expression 1) and (Expression 2) will be described. The first inspection value A is an individual authentication value (check sum: 0x80), the second inspection value B is an operation value (number of processing times: 0x01), and the additional data C is a constant (0x10).

An example in which the person to be authenticated generates the first authentication data First authentication data V1c = first inspection value (0x80) + additional data (0x10) = 0x90
Second authentication data V2s = second inspection value (0x01) + first inspection value (0x80) = 0x81

Example in which the certifier extracts the inspection value from the first authentication data The extracted first inspection value A ′ = first authentication data V1c (0x90) −additional data (0x10) = 0x80
Extracted second inspection value B ′ = second authentication data V2s (0x81) −first inspection value (0x80) = 0x01

Example in which authenticator performs first authentication When intermediate portion 202A stores first expected value a of first inspection value A as 0x80 and second expected value b of second inspection value B as 0x01, If the extracted first inspection value A ′ and the first expected value a are 0x80, and the second inspection value B ′ and the second expected value b are 0x01, the intermediate unit 202A determines that the authentication of the main control unit 201 is established. To do. If either one of the extracted first inspection value a and second inspection value b does not match, the intermediate unit 202A determines that the authentication of the main control unit 201 is not established.

An example in which a person to be authenticated generates data for second authentication First authentication data V1c = first inspection value (0x80) + additional data (0x10) = 0x90
Second authentication data V2s = second inspection value (0x02) + first inspection value (0x80) = 0x82

An example in which the authenticator extracts an inspection value from the second authentication data The extracted first inspection value A ′ = first authentication data V1c (0x90) −additional data (0x10) = 0x80
Extracted second inspection value B ′ = second authentication data V2s (0x82) −first inspection value (0x80) = 0x02

An example where the authenticator performs the second authentication In the intermediate unit 202A, the first expected value a of the first inspection value A is updated to 0x80, and the second expected value b of the second inspection value B is updated to 0x02 and stored. If the extracted first inspection value A ′ and the first expected value a are 0x80, and the second inspection value B ′ and the second expected value b are 0x02, the intermediate unit 202A authenticates the main control unit 201. It is determined that it is established. If either one of the extracted first inspection value a and second inspection value b does not match, the intermediate unit 202A determines that the authentication of the main control unit 201 is not established.

(Specific example 2 of authentication method)
Then, the case where the specific example 1 mentioned above is changed is demonstrated. Specifically, the case where the first authentication process is the same and the additional data C is changed according to a predetermined rule in the second and subsequent times will be described.

Example in which the person to be authenticated generates data for second authentication First authentication data V1c = first inspection value (0x80) + additional data (0x20: the law is doubled) = 0xA0
Second authentication data V2s = second inspection value (0x02) + first inspection value (0x80) = 0x82

Example in which the authenticator extracts the inspection value from the second authentication data The extracted first inspection value A ′ = first authentication data V1c (0xA0) −additional data (0x20) = 0x80
Extracted second inspection value B ′ = second authentication data V2s (0x82) −first inspection value (0x80) = 0x02

An example where the authenticator performs the second authentication In the intermediate unit 202A, the first expected value a of the first inspection value A is updated to 0x80, and the second expected value b of the second inspection value B is updated to 0x02 and stored. If the extracted first inspection value A ′ and the first expected value a are 0x80, and the second inspection value B ′ and the second expected value b are 0x02, the intermediate unit 202A authenticates the main control unit 201. It is determined that it is established. If either one of the extracted first inspection value a and second inspection value b does not match, the intermediate unit 202A determines that the authentication of the main control unit 201 is not established.

  According to the second specific example, since the value of the first authentication data V1c can be disturbed by not using the additional data C as it is, the security can be further improved.

  In the present embodiment, the case where the first inspection value A or the second inspection value B is directly used as one inspection value for generating the above-described second authentication data V2 will be described. A part of the first inspection value A or the second inspection value B can be used as one inspection value. An example of using a part of the inspection value can be realized by using the upper 4 bits or the lower 4 bits of the inspection value as a part of the inspection value.

  Subsequently, in FIG. 10, the control signal with intermediate authentication result 1030 includes the control command data 1001 and accompanying data 1002 described above, and the intermediate authentication result data 1004 described above. The intermediate authentication result-added control signal 1030 corresponds to the authentication process of the main control unit 201 based on the authentication data 1003 when the intermediate unit 202A receives the authentication data-added control signal 1020 described above from the main control unit 201. Generated by the intermediate unit 202A. Then, the control signal with intermediate authentication result 1030 is transmitted from the intermediate unit 202A to the peripheral unit 202B on the peripheral board 320 instead of the control signal with authentication data 1020. That is, the control command data 1001 and accompanying data 1002 of the control signal with intermediate authentication result 1030 and the accompanying data 1002 are the control command data 1001 and accompanying data 1002 of the control signal with authentication data 1020, and the intermediate authentication result is used instead of the authentication data 1003. Data 1004 is added. In the intermediate authentication result data 1004, data indicating the authentication result of the main control board 310 is set. The intermediate authentication result data 1004 is data indicating, for example, “authentication established”, “authentication not established”, or the like.

(Processing related to transmission and reception of control signals)
Hereinafter, an example of communication of control signals performed between the main control unit 201 and the intermediate unit 202A will be described. First, an example of a control signal transmission procedure by the CPU 211 (first computer) of the main control 201 will be described with reference to a flowchart of FIG.

  When the pachinko gaming machine 100 is turned on (turned on), the main control unit 201 determines in step S1201 whether or not to transmit a control command. As an example of the determination method, the determination is made based on whether or not control command data 1001 to be transmitted from the main control unit 201 to the peripheral unit is generated. If the main control unit 201 determines not to transmit a control command (S1201: No), the main control unit 201 proceeds to the process of step S1209. On the other hand, when determining that the control command is to be transmitted (S1201: Yes), the main control unit 201 proceeds to the process of step S1202.

  In step S1202, the main control unit 201 generates the first test value A of the first authentication method from the individual authentication value of the main control unit 201 and stores it in the RAM 213 and the like, and then proceeds to the process of step S1203. In step S1203, the main control unit 201 acquires the operation value of the main control unit 201 from the data storage unit 311 (see FIG. 3) described above and stores it in the RAM 213 or the like. In step S1204, the acquired operation value. From this, the second inspection value B of the second authentication method is generated and stored in the RAM 213 and the like, and then the process proceeds to step S1205.

  In step S1205, the main control unit 201 calculates the first inspection value A and the additional data C according to (Expression 1), which is the first calculation method, to obtain the first authentication data V1c and stores it in the RAM 213 or the like. Then, the process proceeds to step S1206. In step S1206, the main control unit 201 calculates the second inspection value B and the first inspection value A by the above-described (Expression 2), which is the second calculation method, and obtains the second authentication data V2s. Are stored in the RAM 213 and the like, and then the process proceeds to step S1207.

  In step S1207, the main control unit 201 encrypts the generated first authentication data V1c and second authentication data V2s by a predetermined encryption method, and in step S1208, the first authentication data V1c and Based on the second authentication data V2s and the control command data 1001, a control signal with authentication data 1020 is generated and transmitted to the intermediate unit 202A, and then the process proceeds to step S1209.

  In step S1209, the main control unit 201 determines whether or not the pachinko gaming machine 100 is powered off. If the main control unit 201 determines that the power is not turned off (S1209: No), the main control unit 201 returns to the process of step S1201 and repeats a series of processes. On the other hand, when the main control unit 201 determines that the power is turned off (S1209: Yes), the process according to this flowchart ends.

  Next, the procedure of the reception process of the control signal 1010 and the control signal with authentication data 1020 by the CPU 231 (second computer) of the intermediate unit 202A will be described with reference to the flowchart of FIG.

  In step S1301, intermediate unit 202A determines whether a control signal has been received from main control unit 201 or not. When it is determined that the control unit 202A has not received the control signal (S1301: No), the intermediate unit 202A waits for reception of the control signal by repeating this determination process. On the other hand, if the intermediate unit 202A determines that the control signal has been received (S1301: Yes), the process proceeds to step S1302.

  In step S1302, intermediate unit 202A determines whether or not authentication data 1003 is included in the received control signal. If the intermediate unit 202A determines that the authentication data 1003 is not included (S1302: No), the normal control signal 1010 received from the main control unit 201 is directly transmitted to the peripheral unit 202B in step S1303. Then, the process proceeds to step S1311.

  On the other hand, if it is determined in step S1302 that the authentication data 1003 is included (S1302: Yes), the intermediate unit 202A acquires the authentication data 1003 included in the control signal with authentication data 1020 in step S1304. The first authentication data V1c and the second authentication data V2s, which are the authentication data 1003, are decrypted by a decryption method corresponding to the encryption method, and the first authentication data V1c and the second authentication data are obtained. The inverse calculation is performed based on V2s, the first calculation method, the second calculation method, and the additional data C, and the first inspection value A ′ and the second inspection value B ′ are used as the first authentication data V1c and the second authentication data. Extracted from the data V2s and stored in the RAM 233 or the like, and then the process proceeds to step S1305.

  In step S1305, the intermediate unit 202A determines whether or not both the first inspection value A 'and the second inspection value B' extracted match the predetermined first and second expected values. If the intermediate unit 202A determines that both coincide with each of the first and second expected values (S1305: Yes), in step S1306, authentication is established for the main control unit 201, indicating that authentication has been established. Intermediate authentication result data 1004 is generated and stored in the RAM 233 or the like, and then the process proceeds to step S1307.

  In step S1307, the intermediate unit 202A changes the second inspection value B ′, which is the operation value, according to the operation of the main control unit 201, so that the second value of the expected value storage unit 322 corresponds to the change. The expected value is updated, and then the process proceeds to S1309. As an example of updating the second expected value, when the operation value is incremented by the number of processes, the second expected value is incremented and updated.

  On the other hand, the intermediate unit 202A determines in step S1305 that both the first inspection value A ′ and the second inspection value B ′ do not match the predetermined first and second expected values (S1305). In step S1308, authentication with respect to the main control unit 201 is not established, intermediate authentication result data 1004 indicating that authentication is not established is generated and stored in the RAM 233 and the like, and then the process proceeds to step S1309.

  In step S1309, the intermediate unit 202A adds the generated intermediate authentication result data 1004 to the control command data 1001 and the accompanying data 1002 extracted from the received control data with authentication data 1020, and adds a control signal with an intermediate authentication result. 1030 is generated, and in step S1310, the generated control signal with intermediate authentication result 1030 is transmitted to the peripheral unit 202B, and then the process proceeds to step S1311.

  In step S1311, the intermediate unit 202A determines whether or not the pachinko gaming machine 100 is powered off. If it is determined that the power is not turned off (S1311: No), the peripheral unit returns to the process of step S1301 and repeats a series of processes. On the other hand, when it is determined that the power is turned off (S1311: Yes), the intermediate unit 202A ends the process according to this flowchart.

  Next, the procedure of receiving various control signals by the CPU 241 (third computer) of the peripheral unit 202B will be described with reference to the flowchart of FIG.

  In step S1401, the peripheral unit 202B determines whether a control signal is received from the intermediate unit 202A. When the peripheral unit 202B determines that the control signal is not received (S1401: No), the peripheral unit 202B waits for reception of the control signal by repeating this determination process. On the other hand, if the peripheral unit 202B determines that the control signal has been received (S1401: Yes), the peripheral unit 202B proceeds to the process of step S1402.

  In step S1402, the peripheral unit 202B determines whether or not the intermediate authentication result data 1004 is included in the received control signal. If the peripheral unit 202B determines that the intermediate authentication result data 1004 is not included (S1402: No), since the received control signal is the normal control signal 1010, the process proceeds to step S1404.

  On the other hand, when the peripheral unit 202B determines that the intermediate authentication result data 1004 is included (S1402: Yes), since the received control signal is the control signal with intermediate authentication result 1030, the intermediate authentication is performed in step S1403. It is determined whether or not the intermediate authentication result data 1004 of the control signal with result 1030 indicates that authentication has been established. If the peripheral unit 202B determines that the authentication has been established (S1403: Yes), since it is a control signal received from the regular main control unit 201, in step S1404, the received control signal 1002 or Predetermined processing is performed based on the control command data 1001 and accompanying data 1002 included in the control signal with intermediate authentication result 1030, and then the process proceeds to step S1405.

  In step S1405, the peripheral unit 202B determines whether or not the pachinko gaming machine 100 is powered off. If it is determined that the power is not turned off (S1405: No), the peripheral unit 202B returns to the process of step S1401 and repeats a series of processes. On the other hand, when it is determined that the power is turned off (S1405: Yes), the peripheral unit 202B ends the process according to this flowchart.

  On the other hand, when it is determined in step S1403 that the authentication has not been established, that is, the peripheral portion 202B has determined that the authentication has not been established (S1403: No), the peripheral command 202B discards the control command data 1001 and the accompanying data 1002 in step S1406. For example, a notification signal is output from the speaker 262 (see FIG. 2) or the like, and the processing according to this flowchart ends.

(Authentication processing procedure example 1 using authentication data)
In FIG. 14, the main control board 310 that is the person to be authenticated generates a second inspection value B1 that is an operation value of the regular CPU 211 (S1501), and the first inspection value A1 that is an individual authentication value of the regular CPU 211 is obtained. Generate (S1502). The main control board 310 generates the first authentication data V1s1 = H1s (B1, C1) for the first time based on the second inspection value B1 and the additional data C1, and transmits the first authentication data V1s1 to H1s (B1, C1). (S1503). Then, the main control board 310 generates the second authentication data V2c1 = H2c (A1, B1) for the first time based on the first inspection value A1 and the second inspection value B1, and the intermediate portion 202A of the peripheral board 320 (S1504).

  Thus, in the authentication processing procedure example 1, the second inspection value is Bn, the first inspection value is An, the first calculation method is H1s, the first authentication data is V1sn, the second calculation method is H2c, and the second authentication value is used. The data is represented as V2cn, and n indicates the number of authentications (n = 1, 2, 3,...).

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the second inspection value B1 by performing a reverse operation using the calculation method H1s and the additional data C1 from the first authentication data V1s1 received from the main control board 310, Authentication is performed by determining whether or not the second inspection value B1 matches a predetermined second expected value (S1511). Then, the intermediate unit 202A extracts the first inspection value A1 from the second authentication data V2c1 using the calculation method H2c and the second inspection value B1, and extracts the first inspection value A1. Authentication is performed by determining whether or not the first expected value thus obtained matches (S1512). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1513).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1521).

  As described above, in the peripheral board 320, the intermediate part 202A performs the first authentication process on the main control board 310 based on the first inspection value A1 (individual authentication value) and the second inspection value B1 (operation value), and the peripheral part 202B performs a predetermined process according to the authentication result of the intermediate part 202A. When the first authentication is established, a second authentication process is performed.

  Subsequently, the main control board 310 generates a second inspection value B2 that is an operation value of the regular CPU 211 (S1531), and generates a first inspection value A2 that is an individual authentication value of the regular CPU 211 (S1532). The main control board 310 generates second authentication data V1s2 = H1s (B2, C2) for the second time based on the second inspection value B2 and the additional data C2, and transmits it to the intermediate section 202A of the peripheral board 320 ( S1533). Then, the main control board 310 generates the second authentication data V2c2 = H2c (A2, B2) for the second time based on the first inspection value A2 and the second inspection value B2 to generate the intermediate portion 202A of the peripheral board 320. (S1534).

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the second inspection value B2 by performing reverse calculation using the calculation method H1s and the additional data C2 from the first authentication data V1s2 received from the main control board 310, Authentication is performed by determining whether or not the second inspection value B2 matches a predetermined second expected value (S1541). Then, the peripheral substrate 320 extracts the first inspection value A2 from the second authentication data V2c2 using the calculation method H2c and the second inspection value B2, and extracts the first inspection value A2. Authentication is performed by determining whether or not the obtained first expected value matches (S1542). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1543).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1551).

  As described above, in the peripheral board 320, the intermediate part 202A performs the second authentication process on the main control board 310 based on the first inspection value A2 (individual authentication value) and the second inspection value B2 (operation value), and the peripheral part 202B performs a predetermined process according to the authentication result of the intermediate part 202A. When the second authentication is established, the third and subsequent authentication processes are performed as described above.

  As described above, in the case of the authentication processing procedure example 1, the second authentication data V2cn includes the second inspection value (operation value) Bn used for generating the first authentication data V1sn. In order to extract the first inspection value An from the data V2cn for the extraction, the extraction and authentication of the second inspection value Bn are essential, so that it is difficult for an unauthorized analyst to analyze and reuse the second authentication data V2cn. It can be. Since the intermediate unit 202A performs this authentication process, the peripheral unit 202B only refers to the authentication result of the intermediate unit 202A without performing the authentication process. Therefore, the processing load on the CPU 241 of the peripheral unit 202B can be reduced. .

(Example 2 of authentication processing procedure using authentication data)
In FIG. 15, the main control board 310 that is the person to be authenticated generates a first inspection value A1 that is an individual authentication value of the regular CPU 211 (S1601), and a second inspection value B1 that is an operation value of the regular CPU 211. Generate (S1602). The main control board 310 generates the first authentication data V1c1 = H1c (A1, C1) for the first time based on the first inspection value A1 and the additional data C1, and transmits it to the intermediate section 202A of the peripheral board 320 ( S1603). Then, the main control board 310 generates the first authentication data V2s1 = H2s (B1, A1) for the first time based on the second inspection value B1 and the first inspection value A1, and the intermediate portion 202A of the peripheral board 320 (S1604).

  Thus, in the authentication processing procedure example 2, the first inspection value is An, the second inspection value is Bn, the first calculation method is H1c, the first authentication data is V1cn, the second calculation method is H2s, and the second authentication value is used. The data is represented as V2sn, and n indicates the number of authentications (n = 1, 2, 3,...).

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the first inspection value A1 by performing a reverse operation using the calculation method H1c and the additional data C1 from the first authentication data V1c1 received from the main control board 310, Authentication is performed by determining whether or not the first inspection value A1 matches the predetermined first expected value (S1611). Then, the intermediate unit 202A performs a reverse operation using the calculation method H2s and the first inspection value A1 from the second authentication data V2s1 to extract the second inspection value B1, and sets the second inspection value B1 in advance. Authentication is performed by determining whether or not the second expected value thus obtained matches (S1612). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1613).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1621).

  As described above, in the peripheral board 320, the intermediate part 202A performs the first authentication process on the main control board 310 based on the first inspection value A1 (individual authentication value) and the second inspection value B1 (operation value), and the peripheral part 202B performs a predetermined process according to the authentication result of the intermediate part 202A. When the first authentication is established, the second and subsequent authentication processes are performed.

  Subsequently, the main control board 310 generates a first inspection value A2 that is an individual authentication value of the normal CPU 211 (S1631), and generates a second inspection value B2 that is an operation value of the normal CPU 211 (S1632). The main control board 310 generates second authentication data V1c2 = H1c (A2, C2) for the second time based on the first inspection value A2 and the additional data C2, and transmits it to the intermediate section 202A of the peripheral board 320 ( S1633). Then, the main control board 310 generates second authentication data V2s2 = H2s (B2, A2) for the second time based on the second inspection value B2 and the first inspection value A2, and the intermediate portion 202A of the peripheral board 320 (S1634).

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the first inspection value A2 by performing a reverse operation using the calculation method H1c and the additional data C2 from the first authentication data V1c2 received from the main control board 310, Authentication is performed by determining whether or not the first inspection value A2 matches a predetermined first expected value (S1641). Then, the peripheral substrate 320 performs a reverse operation using the calculation method H2s and the first inspection value A2 from the second authentication data V2s2 to extract the second inspection value B2, and sets the second inspection value B2 in advance. Authentication is performed by determining whether or not the second expected value thus obtained matches (S1642). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1643).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1651).

  As described above, in the peripheral board 320, the intermediate part 202A performs the second authentication process on the main control board 310 based on the first inspection value A2 (individual authentication value) and the second inspection value B2 (operation value), and the peripheral part 202B performs a predetermined process according to the authentication result of the intermediate part 202A. When the second authentication is established, the third and subsequent authentication processes are performed.

  As described above, in the case of the authentication processing procedure example 2, the second authentication data V2sn includes the second inspection value (operation value) Bn used for generating the first authentication data V1sn. In order to extract the first inspection value An from the data V2cn for the extraction, the extraction and authentication of the second inspection value Bn are essential, so that it is difficult for an unauthorized analyst to analyze and reuse the second authentication data V2cn. It can be. Since the intermediate unit 202A performs this authentication process, the peripheral unit 202B only refers to the authentication result of the intermediate unit 202A without performing the authentication process. Therefore, the processing load on the CPU 241 of the peripheral unit 202B can be reduced. .

(Example 3 of authentication processing procedure using authentication data)
In FIG. 16, the main control board 310 that is the person to be authenticated generates a second inspection value B1 that is an operation value of the regular CPU 211 (S1701), and the first time based on the second inspection value B1 and the additional data C1. The first authentication data V1s1 = H1s (B1, C1) is generated and transmitted to the intermediate portion 202A of the peripheral board 320 (S1702). On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the second inspection value B1 by performing a reverse operation using the calculation method H1s and the additional data C1 from the first authentication data V1s1 received from the main control board 310, Authentication is performed by determining whether or not the second inspection value B1 matches a predetermined second expected value (S1711). If this authentication is established, the authentication process is continued.

  The main control board 310 generates a second inspection value B2 that is an operation value of the regular CPU 211 (S1721), and generates a first inspection value A1 that is an individual authentication value of the regular CPU 211 (S1722). The main control board 310 generates second authentication data V1s2 = H1s (B2, C2) for the second time based on the second inspection value B2 and the additional data C2, and transmits it to the intermediate section 202A of the peripheral board 320 ( S1723). Then, the main control board 310 generates the second authentication data V2c1 = H2c (A1, B1) for the first time based on the first inspection value A1 and the second inspection value B1 generated last time. The data is transmitted to the intermediate unit 202A (S1724).

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the second inspection value B2 by performing reverse calculation using the calculation method H1s and the additional data C2 from the first authentication data V1s2 received from the main control board 310, Authentication is performed by determining whether or not the second inspection value B2 matches a predetermined second expected value (S1731). Then, the intermediate unit 202A extracts the first inspection value A1 from the second authentication data V2c1 by performing a reverse operation using the calculation method H2c and the previous second inspection value B1, and the first inspection value A1. Authentication is performed by determining whether or not the predetermined first expected value matches (S1732). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1733).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1741).

  As described above, in the peripheral board 320, the intermediate unit 202A performs the first authentication process on the main control board 310 based on the first inspection value A1 (individual authentication value) and the second inspection value B1, 2 (operation value), The peripheral part 202B performs a predetermined process according to the authentication result of the intermediate part 202A. When the current authentication is established, the next authentication process is continued.

  As described above, in the case of the authentication processing procedure example 3, the second authentication data V2cn includes the second inspection value (operation value) Bn used to generate the first authentication data V1sn. In order to extract the first inspection value An from the data V2cn for the extraction, the extraction and authentication of the second inspection value Bn are essential, so that it is difficult for an unauthorized analyst to analyze and reuse the second authentication data V2cn. It can be. Further, in the authentication processing procedure 3, the main control board 310 generates the second inspection values Bn, B (n + 1) for one authentication process, and the first authentication data V1sn, V1s (n + 1) is used as the peripheral board 320. Therefore, analysis by an unauthorized analyst can be made even more difficult. Note that the ratio of the number of transmissions of the first authentication data V1sn and the second authentication data V2cn can be arbitrarily determined, for example, fixed or changed. Further, since the intermediate unit 202A performs this authentication process, the peripheral unit 202B does not perform the authentication process, but only refers to the authentication result of the intermediate unit 202A, so that the processing load on the CPU 241 of the peripheral unit 202B can be reduced. .

(Example 4 of authentication processing procedure using authentication data)
In FIG. 17, the main control board 310 that is the person to be authenticated generates a first inspection value A1 that is an individual authentication value of the regular CPU 211 (S1801), and 1 based on the first inspection value A1 and the additional data C1. First authentication data V1c1 = H1c (A1, C1) is generated and transmitted to the intermediate portion 202A of the peripheral board 320 (S1802). On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the first inspection value A1 by performing a reverse operation using the calculation method H1c and the additional data C1 from the first authentication data V1c1 received from the main control board 310, Authentication is performed by determining whether or not the first inspection value A1 matches a predetermined first expected value (S1811). If this authentication is established, the authentication process is continued.

  The main control board 310 generates a first inspection value A2 that is an individual authentication value of the regular CPU 211 (S1821), and generates a second inspection value B1 that is an operation value of the regular CPU 211 (S1822). The main control board 310 generates second authentication data V1c2 = H1c (A2, C2) for the second time based on the first inspection value A2 and the additional data C2, and transmits it to the intermediate section 202A of the peripheral board 320 ( S1823). Then, the main control board 310 generates the second authentication data V2s1 = H2s (B1, A1) for the first time based on the second inspection value B1 and the first inspection value A1 generated last time, and The data is transmitted to the intermediate unit 202A (S1824).

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the first inspection value A2 by performing a reverse operation using the calculation method H1c and the additional data C2 from the first authentication data V1c2 received from the main control board 310, Authentication is performed by determining whether or not the first inspection value A2 matches a predetermined first expected value (S1831). Then, the peripheral substrate 320 performs a reverse operation using the calculation method H2s and the previous first inspection value A1 from the second authentication data V2s1 to extract the second inspection value B1, and the second inspection value B1. Authentication is performed by determining whether or not the predetermined second expected value matches (S1832). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1833).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1841).

  As described above, in the peripheral board 320, the intermediate unit 202A performs the first authentication process on the main control board 310 based on the first inspection values A1, 2 (individual authentication value) and the second inspection value B1 (operation value), The peripheral part 202B performs a predetermined process according to the authentication result of the intermediate part 202A. When the current authentication is established, the next authentication process is continued.

  As described above, in the case of the authentication processing procedure example 4, the second authentication data V2sn includes the first inspection value (individual authentication value) An used for generating the first authentication data V1cn. In order to extract the second inspection value Bn from the authentication data V2sn, the extraction and authentication of the first inspection value An are essential, so that an unauthorized analyst analyzes and reuses the second authentication data V2sn. Can be more difficult. In the authentication processing procedure 4, the main control board 310 generates the first inspection values An and A (n + 1) for one authentication process, and the first authentication data V1cn and V1c (n + 1) are transmitted to the peripheral board 320. Therefore, analysis by an unauthorized analyst can be made even more difficult. It should be noted that the ratio of the number of transmissions between the first authentication data V1cn and the second authentication data V2sn can be arbitrarily determined, for example, fixed or changed. Further, since the intermediate unit 202A performs this authentication process, the peripheral unit 202B does not perform the authentication process, but only refers to the authentication result of the intermediate unit 202A, so that the processing load on the CPU 241 of the peripheral unit 202B can be reduced. .

(Example 5 of authentication processing procedure using authentication data)
In FIG. 18, the main control board 310 that is the person to be authenticated generates a second inspection value B1 that is an operation value of the regular CPU 211 (S1901), and the first time based on the second inspection value B1 and the additional data C1. The first authentication data V1s1 = H1s (B1, C1) is generated and transmitted to the intermediate portion 202A of the peripheral board 320 (S1902). Then, for example, at the timing when the operation value changes, the main control board 310 generates the second inspection value B2 that is the operation value of the regular CPU 211 (S1903), and the first inspection that is the individual authentication value of the regular CPU 211. A value A1 is generated (S1904). The main control board 310 generates second authentication data V1s2 = H1s (B2, C2) for the second time based on the second inspection value B2 and the additional data C2, and transmits it to the intermediate section 202A of the peripheral board 320 ( S1905). Then, the main control board 310 generates the second authentication data V2c1 = H2c (A1, B1) for the first time based on the first inspection value A1 and the second inspection value B1 generated last time. The data is transmitted to the intermediate unit 202A (S1906). Note that the transmission order of the first authentication data V1s2 and the second authentication data V2c1 may be out of order.

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the second inspection value B1 by performing a reverse operation using the calculation method H1s and the additional data C1 from the first authentication data V1s1 received from the main control board 310, Authentication is performed by determining whether or not the second inspection value B1 matches a predetermined second expected value (S1911). The peripheral board 320 performs a reverse operation using the calculation method H1s and the additional data C2 from the first authentication data V1s2 received from the main control board 310 to extract the second inspection value B2, and the second inspection value B1. And authentication is performed by determining whether or not the predetermined second expected value matches (S1912). The peripheral board 320 performs a reverse operation using the calculation method H2c and the previous second inspection value B1 from the second authentication data V2c1 to extract the first inspection value A1, and determines the first inspection value A1 in advance. Authentication is performed by determining whether or not the first expected value thus obtained matches (S1913). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1914).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1921). Then, the peripheral substrate 320 continues the next authentication process when the first inspection value A1 (individual authentication value) and the second inspection value B1, 2 (operation value) are all authenticated.

  Thus, in the case of the authentication processing procedure example 5, the second authentication data V2cn includes the second inspection value (operation value) Bn used for generating the first authentication data V1sn. In order to extract the first inspection value An from the data V2cn for the extraction, the extraction and authentication of the second inspection value Bn are essential, so that it is difficult for an unauthorized analyst to analyze and reuse the second authentication data V2cn. It can be. Further, in the authentication processing procedure example 5, as in the authentication processing procedure 3, the main control board 310 generates the second inspection values Bn, B (n + 1) for one authentication processing, and the first authentication data V1sn. , V1s (n + 1) is transmitted to the peripheral substrate 320, the analysis by the unauthorized analyst can be made even more difficult. Note that the ratio of the number of transmissions of the first authentication data V1sn and the second authentication data V2cn can be arbitrarily determined, for example, fixed or changed. Further, since the intermediate unit 202A performs this authentication process, the peripheral unit 202B does not perform the authentication process, but only refers to the authentication result of the intermediate unit 202A, so that the processing load on the CPU 241 of the peripheral unit 202B can be reduced. .

(Example 6 of authentication processing procedure using authentication data)
In FIG. 19, the main control board 310 that is the person to be authenticated generates a first inspection value A1 that is an individual authentication value of the regular CPU 211 (S2001), and 1 based on the first inspection value A1 and the additional data C1. First authentication data V1c1 = H1c (A1, C1) is generated and transmitted to the intermediate portion 202A of the peripheral board 320 (S2002). For example, when the control command data 1001 is generated, the main control board 310 generates the first inspection value A2 of the regular CPU 211 (S2003). In this way, when a plurality of individual authentication values are generated in one authentication process, for example, by using the individual authentication value as a checksum using program data, it is possible to expect fraud in the program data. Then, the main control board 310 generates a second inspection value B1 that is a normal operation value of the CPU 211 (S2004).

  The main control board 310 generates the first authentication data V1c2 = H1c (A2, C2) for the second time based on the generated first inspection value A2 and the additional data C2, and supplies it to the intermediate part 202A of the peripheral board 320. Transmit (S2005). Then, the main control board 310 generates the second authentication data V2s1 = H2s (B1, A1) for the first time based on the second inspection value B1 and the first inspection value A1 generated last time, and The data is transmitted to the intermediate unit 202A (S2006). Note that the transmission order of the first authentication data V1c2 and the second authentication data V2s1 may be out of order.

  On the other hand, the intermediate portion 202A of the peripheral board 320 extracts the first inspection value A1 by performing a reverse operation using the calculation method H1c and the additional data C1 from the first authentication data V1c1 received from the main control board 310, Authentication is performed by determining whether or not the first inspection value A1 matches a predetermined first expected value (S2011). The peripheral board 320 performs a reverse operation using the calculation method H1c and the additional data C2 from the first authentication data V1c2 received from the main control board 310 to extract the first inspection value A2, and the first inspection value A2 And authentication is performed by determining whether or not the predetermined first expected value matches (S2012). The peripheral substrate 320 performs a reverse operation using the calculation method H2s and the previous first inspection value A1 from the second authentication data V2s1 to extract the second inspection value B1, and sets the second inspection value B1 in advance. Authentication is performed by determining whether or not the second expected value thus obtained matches (S2013). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S2014).

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S2021). Then, the peripheral board 320 continues the next authentication process when the first inspection values A1, A2 (individual authentication value) and the second inspection value B1 (operation value) are all authenticated.

  As described above, in the case of the authentication processing procedure example 6, the second authentication data V2sn includes the first inspection value (individual authentication value) An used for generating the first authentication data V1cn. In order to extract the second inspection value Bn from the authentication data V2sn, the extraction and authentication of the first inspection value An are essential, so that an unauthorized analyst analyzes and reuses the second authentication data V2sn. Can be difficult. Further, in the authentication processing procedure example 6, as in the authentication processing procedure 4, the main control board 310 generates the first inspection values An, A (n + 1) for one authentication processing, and the first authentication data V1cn. , V1c (n + 1) is transmitted to the peripheral board 320, the analysis by the unauthorized analyst can be made even more difficult. It should be noted that the ratio of the number of transmissions between the first authentication data V1cn and the second authentication data V2sn can be arbitrarily determined, for example, fixed or changed. Further, since the intermediate unit 202A performs this authentication process, the peripheral unit 202B does not perform the authentication process, but only refers to the authentication result of the intermediate unit 202A, so that the processing load on the CPU 241 of the peripheral unit 202B can be reduced. .

  According to the pachinko gaming machine 100 described above, the main control unit 201 uses the first inspection value A to inspect the individual authentication value and the second inspection value B to inspect the operation value. When the authentication data is generated, the second authentication data is generated using all or a part of the one inspection value and the other inspection value and transmitted to the peripheral portion. Since it is difficult for an unauthorized analyst to analyze the generation method of the second authentication data, the first inspection value A and the second inspection value B cannot be extracted. Unauthorized use of data to be transmitted can be prevented. Further, the intermediate unit 202A can perform individual authentication on the main control side from the first inspection value A generated by two different authentication methods, and can continue the operation state and operation on the main control side from the second inspection value B. Since the data can be inspected, the intermediate unit 202A can detect that the data is illegally used by an unauthorized analyst. Further, since the intermediate unit 202A performs the authentication process on the main control board 310 and transmits the intermediate authentication result to the peripheral unit 202B, the peripheral unit 202B only refers to the intermediate authentication result without performing the authentication process. Therefore, it is possible to reduce the processing addition of the CPU 241 in the peripheral part (production control part) 202B. Therefore, even if the authentication process is complicated, it does not affect the effect process by the peripheral portion 202B, so that both the improvement of security and the improvement of the game can be achieved. Furthermore, when the main control side, who is the person to be authenticated, does not have a high level of processing capability, it is possible to use multiple authentication methods and calculation methods with a light processing load. Can do.

  Also, the method for generating the first and second authentication data V1 and V2 is further complicated by generating the first authentication data V1 by combining one of the inspection values and the additional data C and transmitting the first authentication data V1 to the intermediate unit 202A. Therefore, unauthorized use of data transmitted from the main control unit 201 to the intermediate unit 202A can be prevented.

  Furthermore, since the first authentication data V1 and the second authentication data V2 can be added to the control command data 1001 and transmitted, compared with the case where they are transmitted alone to the intermediate unit 202A, the main control unit Since an increase in communication load between 201 and the intermediate unit 202A can be suppressed, detection of transmission timing by an unauthorized analyst can be made difficult.

  In addition, since the first and second authentication data V1 and V2 can be encrypted and transmitted from the main control unit 201 to the intermediate unit 202A, the fraud analyst can analyze the first and second authentication data V1 and V2 more. Since it can be made more difficult, unauthorized use of data transmitted from the main control unit 201 to the intermediate unit 202A can be prevented.

(Example of authentication when using multiple types of individual authentication values)
Next, in the pachinko gaming machine 100 described above, an example will be described in which the main control unit 201 is authenticated by using a plurality of different types of individual authentication values.

  In the main control board 310 shown in FIG. 3 described above, the data storage unit 311 further functions as an individual authentication value storage unit in the claims. The data storage unit 311 stores a plurality of types of individual authentication values for specifying the next encryption method from among a plurality of different types of encryption methods. For example, as shown in FIG. 20, when three types of encryption methods Ha, Hb, and Hc are used, each of them is associated with three individual authentication values Fa, Fb, and Fc and stored in the data storage unit 311. The encryption processing unit 317 is configured to encrypt the first and second authentication data V1 and V2 by switching the three types of encryption methods Ha, Hb, and Hc. Note that examples of a plurality of types of encryption methods include a method of encryption using a plurality of types of encryption keys, a method of encryption using a plurality of types of conversion algorithms, and the like.

  In the peripheral board 320, the above-described expected value storage unit 322 further functions as expected value data storage means in the claims. The expected value storage unit 322 stores a plurality of expected value data corresponding to each of a plurality of types of individual authentication values and corresponding to each of a plurality of types of encryption methods. For example, as shown in FIG. 20, the expected value storage unit 322 converts the expected value data Da, Db, Dc corresponding to each of the three individual authentication values Fa, Fb, Fc into the encryption methods Ha, Hb, Hc. Corresponding decoding schemes Na, Nb, Nc are associated and stored as the first expected value described above.

  Instead of associating the encryption methods Ha, Hb, and Hc with the individual authentication values Fa, Fb, and Fc, for example, “continuation” and “switch” are associated with each of the individual authentication values Fa, Fb, and Fc. Various embodiments can be made such as switching a plurality of types of encryption methods in a predetermined switching order.

  The intermediate authentication result data generation unit 325 of the peripheral board 320 compares the first inspection value A with the expected value data Da, Db, Dc stored in the expected value storage unit 322, and based on the comparison result, Authentication of the control unit, that is, authentication of the individual authentication values Fa, Fb, and Fc is performed. Further, the intermediate authentication result data generation unit 325 specifies the first inspection value A (individual authentication value) that matches the expected value data Da, Db, Dc, and specifies the next encryption method from the individual authentication value. It functions as the next encryption method specifying means. If none of the expected value data Da, Db, and Dc matches the individual authentication value, the intermediate authentication result data generation unit 325 determines that fraud has occurred. Further, the decryption processing unit 323 performs the next decryption with the decryption methods Na, Nb, and Nc corresponding to the next encryption methods Ha, Hb, and Hc specified by the intermediate authentication result data generation unit 325.

  Next, an example of communication of control signals performed between the main control unit 201 and the intermediate unit 202A by switching a plurality of types of encryption methods will be described. Note that the processing shown in FIG. 13 described above can be used for the processing of the peripheral portion 202B.

  First, an example of a control signal transmission procedure by the CPU 211 (first computer) of the main control 201 will be described with reference to a flowchart of FIG. Note that the basic processing is the same as the flowchart of FIG. 11 described above.

  When the pachinko gaming machine 100 is powered on (turned on), the main control unit 201 determines whether or not to transmit a control command in step ST1201. As an example of the determination method, the determination is made based on whether or not control command data 1001 to be transmitted from the main control unit 201 to the peripheral unit is generated. If the main control unit 201 determines not to transmit a control command (ST1201: No), the main control unit 201 proceeds to the process of step ST1210. On the other hand, when determining that the control command is to be transmitted (ST1201: Yes), the main control unit 201 proceeds to the process of step ST1202.

  In step ST1202, the main control unit 201 selects one individual authentication value from a plurality of types of individual authentication values Fa to c in the data storage unit 311 (see FIG. 3), and uses the first authentication method based on the individual authentication value. The first inspection value A is generated and stored in the RAM 213 and the like, and then the process proceeds to step S1203. As a method for selecting one individual authentication value from a plurality of types of individual authentication values Fa to c, for example, a predetermined selection method, random, or the like can be arbitrarily used.

  In step ST1203, the main control unit 201 acquires the operation value of the main control unit 201 from the data storage unit 311 described above and stores it in the RAM 213 or the like. In step ST1204, the main control unit 201 determines the second authentication method from the acquired operation value. 2 The inspection value B is generated and stored in the RAM 213 or the like, and then the process proceeds to step ST1205.

  In step ST1205, the main control unit 201 calculates the first inspection value A and the additional data C by the above (expression 1) as the first calculation method to obtain the first authentication data V1c and stores it in the RAM 213 or the like. Then, the process proceeds to step ST1206. In step ST1206, the main control unit 201 calculates the second inspection value B and the first inspection value A by the above-described (Expression 2), which is the second calculation method, and obtains the second authentication data V2s. Are stored in the RAM 213 and the like, and then the process proceeds to step ST1207.

  In step ST1207, the main control unit 201 encrypts the generated first authentication data V1c and second authentication data V2s with the current encryption method set as the next encryption method in the previous process, and in step ST1208. , A control signal with authentication data 1020 is generated based on the first authentication data V1c, the second authentication data V2s, and the control command data 1001, and is transmitted to the intermediate unit 202A. Thereafter, the process of step ST1209 is performed. move on. Then, the main control unit 201 newly sets the encryption methods Ha to c corresponding to the selected individual authentication values Fa to c as the next encryption method, and then proceeds to the processing of step ST1210.

  In step ST1210, the main control unit 201 determines whether or not the pachinko gaming machine 100 is powered off. If the main control unit 201 determines that the power is not turned off (ST1210: No), the main control unit 201 returns to the process of step ST1201 and repeats a series of processes. On the other hand, when determining that the power is turned off (ST1210: Yes), the main control unit 201 ends the process according to this flowchart.

  Next, a procedure of receiving various control signals by the CPU 231 (second computer) of the intermediate unit 202A will be described with reference to a flowchart of FIG. Note that the basic processing is the same as the flowchart of FIG. 12 described above.

  In step ST1301, intermediate unit 202A determines whether or not a control signal has been received from main control unit 201. If it is determined that the control signal is not received (ST1301: No), intermediate section 202A waits for reception of the control signal by repeating this determination process. On the other hand, if intermediate section 202A determines that a control signal has been received (ST1301: Yes), it moves to the process of step ST1302.

  In step ST1302, intermediate unit 202A determines whether or not authentication data 1003 is included in the received control signal. If the intermediate unit 202A determines that the authentication data 1003 is not included (ST1302: No), the normal control signal 1010 received from the main control unit 201 is directly transmitted to the peripheral unit 202B in step ST1303. Then, the process proceeds to step ST1313.

  On the other hand, if intermediate section 202A determines in step ST1302 that authentication data 1003 is included (ST1302: Yes), it acquires authentication data 1003 included in control signal with authentication data 1020 in step ST1304. Then, the first authentication data V1c and the second authentication data V2s, which are the authentication data 1003, are decrypted by the present decryption method set in the previous process, and the process proceeds to step ST1305. In step ST1305, the intermediate unit 202A performs reverse operation based on the decrypted first authentication data V1c and second authentication data V2s, the first operation method, the second operation method, and the additional data C. The first inspection value A ′ and the second inspection value B ′ are extracted from the first authentication data V1c and the second authentication data V2s and stored in the RAM 233 and the like, and then the process proceeds to step ST1306.

  In step ST1306, the intermediate unit 202A determines whether both the first inspection value A 'and the second inspection value B' extracted match the predetermined first and second expected values. If the intermediate unit 202A determines that both coincide with each of the first and second expected values (ST1306: Yes), in step ST1307, the authentication to the main control unit 201 is established, and the authentication is established. Intermediate authentication result data 1004 is generated and stored in the RAM 233 or the like, and then the process proceeds to step ST1308.

  In step ST1308, the intermediate unit 202A changes the second inspection value B ′, which is the operation value, according to the operation of the main control unit 201, so that the second value of the expected value storage unit 322 corresponds to the change. The expected value is updated, and then the process proceeds to S1309. As an example of updating the second expected value, when the operation value is incremented by the number of processes, the second expected value is incremented and updated. In step ST1309, the intermediate unit 202A stores the decoding methods Na to c corresponding to the expected value data Da to c that match the first inspection value A (individual authentication value) in the RAM 233 or the like as the next decoding method. Then, the process proceeds to step ST1311.

  On the other hand, if intermediate section 202A determines in step ST1306 that both first inspection value A ′ and second inspection value B ′ do not coincide with the first and second expected values determined in advance (ST1306). : No), in step ST1310, authentication with respect to the main control unit 201 is not established, intermediate authentication result data 1004 indicating that authentication is not established is generated and stored in the RAM 233 or the like, and then the process proceeds to step ST1311.

  In step ST1311, the intermediate unit 202A adds the generated intermediate authentication result data 1004 to the control command data 1001 and the accompanying data 1002 extracted from the received control signal with authentication data 1020, and adds a control signal with an intermediate authentication result. 1030 is generated, and in step ST1312, the generated control signal with intermediate authentication result 1030 is transmitted to the peripheral unit 202B, and then the process proceeds to step ST1313.

  In step ST1313, the intermediate unit 202A determines whether or not the pachinko gaming machine 100 is turned off. If the peripheral portion determines that the power is not turned off (ST1313: No), the processing returns to step ST1301, and a series of processing is repeated. On the other hand, when it is determined that the power is turned off (ST1313: Yes), the intermediate unit 202A ends the process according to this flowchart.

  Next, an example of an authentication processing procedure using authentication data that is encrypted by switching a plurality of types of encryption methods will be described. Since the basic operation is the same as that in FIG. 14 described above, the drawings will be described with reference to FIGS.

  In FIG. 14, the main control board 310 that is the person to be authenticated generates a second inspection value B1 that is an operation value of the regular CPU 211 (S1501), and the three types of individual authentication values Fa to c of the data storage unit 311 are generated. The individual authentication value Fb is selected from among them, and the first inspection value A1 is generated (S1502). Thereby, since the next encryption method Hb is associated with the individual authentication value Fb, the main control board 310 sets the next encryption method Hb as the next encryption method. The main control board 310 generates the first authentication data V1s1 = H1s (B1, C1) for the first time based on the second inspection value B1 and the additional data C1, and is set as the current encryption method. The data is encrypted using the encryption method Ha that has been transmitted to the intermediate portion 202A of the peripheral board 320 (S1503). Then, the main control board 310 generates the second authentication data V2c1 = H2c (A1, B1) for the first time based on the first inspection value A1 and the second inspection value B1, and encrypts the data using the encryption method Ha. And transmitted to the intermediate portion 202A of the peripheral board 320 (S1504).

  On the other hand, the intermediate section 202A of the peripheral board 320 decrypts the first authentication data V1s1 received from the main control board 310 using the current decryption method Na, and calculates the operation method H1s and additional data from the first authentication data V1s1. The second inspection value B1 is extracted by performing a reverse operation using C1, and authentication is performed by determining whether or not the second inspection value B1 matches a predetermined second expected value ( S1511). Then, the intermediate unit 202A decrypts the second authentication data V2c1 with the current decryption method Na, and performs an inverse operation using the operation method H2c and the second inspection value B1 from the second authentication data V2c1. The first inspection value A1 is extracted, and authentication is performed by determining whether or not the first inspection value A1 matches a predetermined first expected value (S1512). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310, and transmits an intermediate authentication result-added control signal 1030 having the intermediate authentication result data 1004 to the peripheral part 202B of the peripheral board 320. (S1513). Since the first inspection value A1 is the individual authentication value Fb, it is the expected value data Db that matches, and since the decoding method Nb is associated with the expected value data Db, the decoding The intermediate unit 202A of the peripheral board 320 sets the method Nb as the next decoding method.

  When the intermediate authentication result data 1004 of the control signal 1030 with the intermediate authentication result received from the intermediate unit 202A indicates that authentication has been established, the peripheral part 202B of the peripheral board 320 has a predetermined correspondence corresponding to the control command data 1001 and the accompanying data 1002. Processing is performed (S1521).

  Even if the pachinko gaming machine 100 is configured in this manner, the same operational effects as those of the first embodiment can be obtained. Further, the first and second authentication data V1 and V2 are generated by switching and using a plurality of types of individual authentication values Fa to c corresponding to the next encryption method Ha to c that only the main control unit 201 knows. The unit compares the individual authentication values Fa to c extracted from the first and second authentication data V1 and V2 with a plurality of types of expected value data Da to c to perform authentication of the main control unit 201. Since the encryption methods of the first and second authentication data V1 and V2 also change depending on the selected individual authentication values Fa to c, unless the unauthorized analyst can identify the individual authentication values Fa to c, The decryption methods Na to c and the individual authentication values Fa to c of the data V1 and V2 cannot be specified, and unauthorized use of data transmitted from the main control unit 201 to the peripheral part can be made more difficult. In addition, the peripheral part can authenticate the individual authentication values Fa to c only by storing the expected value data Da to c corresponding to a plurality of types of encryption methods, and specifies the next encryption method Ha to c. Therefore, it is possible to prevent the peripheral processing from becoming complicated.

[Example 2]
Hereinafter, a second embodiment of the pachinko gaming machine 100 described above will be described. In addition, about the same part as the structure mentioned above, the same code | symbol is attached | subjected and only a different part is demonstrated in detail.

(Functional configuration of main control board and peripheral board)
First, the pachinko gaming machine 100 includes the control unit 200 shown in FIG. The control unit 200 includes a main control unit 201, an intermediate unit 202A, an effect control unit 202B, and a prize ball control unit 203. As shown in FIG. 23, the pachinko gaming machine 100 includes a main control board 310 having a function as the main control unit 201, and a peripheral board 320 having the above-described intermediate unit 202A and the effect control unit 202B. Is configured. The main control board 310 is electrically connected so as to communicate with the peripheral board 320.

  The main control board 310 includes the data storage unit 311, the first inspection value generation unit 312, the operation value acquisition unit 313, the second inspection value generation unit 314, the first authentication data generation unit 315, and the second authentication data generation. 316, an encryption processing unit 317, a main control side transmission unit 318, and a next operation method determination unit 319.

  The data storage unit 311 includes, for example, program data that defines the operation of the CPU 211 of the main control unit 201, an individual authentication value that will be described later, an operation value that changes according to the operation of 211 that executed the program data, and the first described above. , 2 expected values, etc. are stored. Further, the data storage unit 311 includes next calculation information indicating the next calculation method of the first calculation method and the second calculation method described above, a plurality of different calculation methods predetermined for the pachinko gaming machine 100, and the plurality of calculation methods. Stored is calculation method table information indicating a plurality of types of encryption methods associated with one type of calculation method on a one-to-one basis. Note that a plurality of types of encryption methods are used that have different values when the same authentication data is encrypted.

  The next calculation information includes identification data that can identify the next calculation method, and is sequentially set and updated to the next calculation method determined by the next calculation method determination unit 319 from a plurality of different calculation methods. The In this embodiment, the case where the next calculation information indicates the next calculation method of both the first and second calculation methods will be described, but instead of this, a configuration corresponding to each of the first and second calculation methods may be adopted. it can.

  The next calculation method determination unit 319 corresponds to the next calculation method determination means of the present invention, and when the next calculation method used for the next generation of first and second authentication data is determined from the plurality of types of calculation methods, The next calculation method is set in the next calculation information. The next calculation method determination unit 319 can determine the next calculation method at an arbitrary timing. For example, when generating first and second authentication data, when transmitting predetermined control command data 1001 , Etc.

  When the next calculation method determination unit 319 determines the next calculation method, the encryption processing unit 317 specifies an encryption method corresponding to the determined next calculation method based on the calculation method table information, and the specified encryption The first authentication data and the second authentication data are encrypted using the encryption method. Then, the main control side transmission unit 318 transmits the encrypted first authentication data and second authentication data to the intermediate unit 202A of the peripheral board 320.

  Similarly to the first embodiment, the pachinko gaming machine 100 according to the second embodiment also includes the first inspection value for authenticating the validity of the main control unit 201 and the operation continuity of the main control unit 201 as two authentication factors. The second inspection value for authentication is adopted. The pachinko gaming machine 100 uses the first inspection value to verify whether or not the main control unit 201 is legitimate. The pachinko gaming machine 100 uses the second inspection value during the operation to verify whether or not unauthorized switching for impersonation has occurred. Then, the pachinko gaming machine 100 authenticates by combining two authentication factors, thereby improving security and reusing the first and second authentication data transmitted from the main control unit 201 to the peripheral unit. Is preventing. Furthermore, the pachinko gaming machine 100 according to the second embodiment can arbitrarily switch the first and second arithmetic methods used for generating the first and second authentication data at the timing. Then, since the next calculation method is switched by the intermediate part 202A of the peripheral board 320 using the first and second authentication data encryption methods, it is difficult for an unauthorized analyst to analyze the next calculation method. Therefore, unauthorized use of data transmitted from the main control board 310 to the peripheral board 320 can be made even more difficult.

  Subsequently, the intermediate unit 202A of the peripheral board 320 includes the above-described intermediate side reception unit 321, expected value storage unit 322, decoding processing unit 323, inspection value extraction unit 324, intermediate authentication result data generation unit 325, intermediate side transmission unit. 326 and a specifying unit 327.

  The expected value storage unit 322 corresponds to the calculation method expected value storage means of the present invention, and the first expected value and the second expected value corresponding to the first inspection value and the second inspection value to be received from the main control board 310 described above. A plurality of expected value data such as an expected value, and first and second authentication data generated from the first and second expected values are calculated method expected value data generated by each of the plurality of types of encryption methods, and , Are stored in plural. That is, the calculation method expected value data is obtained by previously calculating first and second authentication data that can be generated by the regular main control board 310 for each of a plurality of types of encryption methods, and calculating the calculated value. It is stored as data. Therefore, if it is the first and second authentication data received from the regular main control board 310, it should surely match among the plurality of calculation method expected value data. It can be determined that the business data is invalid data.

  The specifying unit 327 corresponds to the specifying unit of the present invention, and the first authentication data received by the intermediate receiving unit 321 from the plurality of calculation method expected values stored in the expected value storage unit 322, and The expected value for the calculation method that matches the second authentication data is specified, and the encryption method and the next calculation method corresponding to the matching expected value for the calculation method are specified.

  The decryption processing unit 323 decrypts the first authentication data and the second authentication data received by the intermediate receiving unit 321 using a decryption method corresponding to the encryption method specified by the specifying unit 327. . Further, the inspection value extraction unit 324 specifies the first calculation method and the second calculation method based on the next calculation method specified by the specifying unit 327, and the first authentication data received by the intermediate receiving unit 321 and The first inspection value or the second inspection value is extracted from the second authentication data.

  In the second embodiment, the CPU 211 of the main control board 310 is the first computer in the claims, the CPU 231 of the peripheral board 320 is the second computer in the claims, and the CPU 241 of the peripheral board 320 is the third computer in the claims. Will be described. The ROM 212 of the main control board 310 includes a first inspection value generation unit, an operation value acquisition unit, a second inspection value generation unit, a first authentication data generation unit, and a second authentication unit. It stores a main control side authentication program for functioning as various means such as data generation means, main control side transmission means, and next calculation method determination means. The ROM 232 of the intermediate portion 202A of the peripheral board 320 includes the intermediate side receiving means, the decoding means, the inspection value extracting means, the intermediate authentication result data generating means, the intermediate side transmitting means, and the specifying means in the second computer. The intermediate side authentication program for functioning as various means such as. The ROM 242 of the peripheral portion 202B of the peripheral board 320 stores a peripheral side authentication program for causing the third computer to function as various means such as peripheral side receiving means and processing means. That is, the authentication program of the present invention is constituted by the main control side authentication program, the intermediate side authentication program, and the peripheral side authentication program.

(Example of correspondence between first and second calculation methods and encryption method)
First, the pachinko gaming machine 100 will be described on the premise that three different calculation methods, the first calculation method H1A, H1B, H1C and the second calculation method H2A, H2B, H2C, are used. As the three types of calculation methods, for example, various calculation methods such as addition, subtraction, integration, division, and exclusive OR are arbitrarily used. A case where the main control unit 201 generates the first and second authentication data by switching the three types of calculation methods will be described.

  In the main control unit 201, as shown in FIG. 24, each of the next three types of first calculation methods H1A, H1B, and H1C is associated with each of the three types of encryption methods M1A, M1B, and M1C, and Each of the next three types of second calculation methods H2A, H2B, and H2C is associated with each of the three types of encryption methods M2A, M2B, and M2C. In the present embodiment, in order to simplify the description, the first calculation methods H1A, H1B, H1C and the second calculation methods H2A, H2B, H2C are made the same, and the encryption methods M1A, M1B, Although the case where M1C and the encryption methods M2A, M2B, and M2C are the same will be described, different calculation methods and encryption methods can be set instead.

  The intermediate unit 202A calculates a value when the first check value is calculated using the first calculation method H1A, H1B, and H1C next time and encrypts the calculated value using the encryption methods M1A, M1B, and M1C. Are stored in the expected value storage unit 322 as calculation method expected values G1A, G1B, and G1C, respectively. Then, the intermediate unit 202A includes the encryption methods M1A, M1B, and M1C corresponding to the calculation method expected values G1A, G1B, and G1C and the decryption methods N1A, N1B, and N1C, and the next first calculation method H1A, H1B and H1C are stored in association with each other.

  Similarly, the intermediate unit 202A calculates the value when the second check value is calculated using the second calculation method H2A, H2B, and H2C next time, and encrypts the calculated value using the encryption methods M2A, M2B, and M2C. The obtained values are stored in the expected value storage unit 322 as the expected values G2A, G2B, and G2C for the calculation method, respectively. Then, the intermediate unit 202A includes the encryption methods M2A, M2B, and M2C corresponding to each of the calculation method expected values G2A, G2B, and G2C, and the decryption methods N2A, N2B, and N2C, and the next second operation method H2A, H2B and H2C are stored in association with each other.

  As examples of the encryption schemes M1A to C, M2A to C, and the decryption schemes N1A to C and N2A to C, various different schemes such as a scheme for encryption and decryption using different keys can be used. .

(Processing related to transmission and reception of control signals)
Hereinafter, an example of communication of control signals performed between the main control unit 201 and the intermediate unit 202A will be described. First, an example of the control signal transmission procedure 2 by the CPU 211 (first computer) of the main control 201 will be described with reference to the flowchart of FIG.

  When the pachinko gaming machine 100 is turned on (turned on), the main control unit 201 determines in step S2201 whether to transmit a control command. As an example of the determination method, the determination is made based on whether or not control command data 1001 to be transmitted from the main control unit 201 to the peripheral unit is generated. If the main control unit 201 determines not to transmit a control command (S2201: No), the process proceeds to step S2210. On the other hand, if the main control unit 201 determines to transmit a control command (S2201: Yes), the main control unit 201 proceeds to the process of step S2202.

  In step S2202, the main control unit 201 generates the first inspection value A of the first authentication method from the individual authentication value of the main control unit 201 and stores it in the RAM 213 and the like, and then proceeds to the process of step S2203. In step S2203, the main control unit 201 acquires the operation value of the main control unit 201 from the above-described data storage unit 311 (see FIG. 23) and stores it in the RAM 213 or the like. In step S2204, the acquired operation value. From this, the second inspection value B of the second authentication method is generated and stored in the RAM 213 or the like, and then the process proceeds to step S2205.

  In step S2205, the main control unit 201 obtains the next first computation method set in the next computation information or the initial first computation method set as the initial computation method for the first time, and the obtained first computation. The first inspection value A and the additional data C described above in (Formula 1) corresponding to the method are calculated to obtain the first authentication data V1c and stored in the RAM 213 or the like, and then the process proceeds to step S2206.

  In step S2206, the main control unit 201 obtains the next second computation method set in the next computation information or the initial second computation method set as the initial computation method for the first time, and the obtained second computation. The second inspection value B and the first inspection value A described above in (Expression 2) corresponding to the method are calculated to obtain the second authentication data V2s and stored in the RAM 213 or the like. Thereafter, the processing in step S2207 is performed. move on.

  In step S2207, the main control unit 201 determines the next first calculation method regularly or irregularly from the three types of first calculation methods H1A to C, and determines the three types of second calculation methods H2A to C. Next, the next second calculation method is determined regularly or irregularly, the next calculation information is updated so as to be the specified next calculation method, and then the process proceeds to step S2208.

  In step S2208, the main control unit 201 specifies one encryption method corresponding to the determined next calculation method from among the three types of encryption methods M1A to C, and generates the generated encryption method using the specified encryption method. The first authentication data V1c and the second authentication data V2s are encrypted, and then the process proceeds to step S2209. In step S2209, the main control unit 201 generates a control signal with authentication data 1020 based on the first authentication data V1c, the second authentication data V2s, and the control command data 1001, and sends the authentication data-added control signal 1020 to the intermediate unit 202A. Then, the process proceeds to step S2210.

  In step S2210, the main control unit 201 determines whether or not the pachinko gaming machine 100 is powered off. If the main control unit 201 determines that the power supply is not turned off (S2210: No), the main control unit 201 returns to the process of step S2201 and repeats a series of processes. On the other hand, when the main control unit 201 determines that the power is turned off (S2210: Yes), the process according to this flowchart is terminated.

  Next, procedure 2 of receiving processing of various control signals by the CPU 231 (second computer) of the intermediate unit 202A will be described with reference to the flowchart of FIG.

  The intermediate unit 202A determines whether or not a control signal is received from the main control unit 201 in step S2301 shown in FIG. When it is determined that the control signal is not received (S2301: No), the peripheral unit waits for reception of the control signal by repeating this determination process. On the other hand, when it is determined that the control signal has been received (S2301: Yes), the peripheral unit proceeds to the process of step S2302.

  In step S2302, the intermediate unit 202A determines whether authentication data 1003 is included in the received control signal. If the intermediate unit 202A determines that the authentication data 1003 is not included (S2302: No), since it is the normal control signal 1010 that is received, the received control signal 1010 is received in step S2303. The data is transmitted as it is to the peripheral portion 202B, and then the process proceeds to step S2314. On the other hand, if the intermediate unit 202A determines that the authentication data 1003 is included (S2302: Yes), since it is the control signal with authentication data 1020 that has been received, the process proceeds to step S2304.

  In step S2304, the intermediate unit 202A determines whether the first authentication data V1c and the second authentication data V2s of the authentication data 1003 match the expected calculation method value. If it is determined that the intermediate unit 202A does not match the expected value for the calculation method (S2304: No), the process proceeds to step S2311. On the other hand, if it is determined that the intermediate unit 202A matches the expected value for the calculation method (S2304: Yes), in step S2305, the first authentication data V1c is decrypted by the decoding method corresponding to the expected value for the calculation method. The second authentication data V2s is decrypted and stored in the RAM 233 or the like, and then the process proceeds to step S2306.

  In step S2306, the intermediate unit 202A determines the first authentication data V1c and the second authentication data V2s that have been decrypted in the previous process or as an initial value (first time only). Based on the calculation method, the second calculation method, and the additional data C, the inverse operation is performed as described above, and the first inspection value A ′ and the second inspection value B ′ are extracted from the authentication data 1003 and stored in the RAM 233 or the like. Then, the process proceeds to step S2307.

  In step S2307, the intermediate unit 202A specifies the next calculation method corresponding to the expected value for the calculation method matched in step S2304 as the next first calculation method and the next second calculation method, and stores them in the RAM 233 and the like. The process proceeds to step S2308.

  In step S2308, the intermediate unit 202A determines whether both the extracted first inspection value A ′ and second inspection value B ′ match the predetermined first and second expected values. If the intermediate unit 202A determines that both coincide with each of the first and second expected values (S2308: Yes), in step S2309, authentication is established for the main control unit 201, and the authentication is established. Intermediate authentication result data 1004 is generated and stored in the RAM 233 or the like, and then the process proceeds to step S2310.

  In step S2310, the intermediate unit 202A changes the second inspection value B ′, which is the operation value, according to the operation of the main control unit 201, so that the second value of the expected value storage unit 322 corresponds to the change. The expected value is updated, and then the process proceeds to S2312. As an example of updating the second expected value, when the operation value is incremented by the number of processes, the second expected value is incremented and updated.

  If the intermediate unit 202A determines in step S2308 that both the first inspection value A ′ and the second inspection value B ′ do not match the first and second expected values that are set in advance (S2308). : No), in step S2311, authentication for the main control unit 201 is not established, intermediate authentication result data 1004 indicating that authentication is not established is generated and stored in the RAM 233 or the like, and then the process proceeds to step S2312.

  In step S2312, the intermediate unit 202A adds the generated intermediate authentication result data 1004 to the control command data 1001 and the accompanying data 1002 extracted from the received control data with authentication data 1020, and adds a control signal with an intermediate authentication result. In step S2313, the generated intermediate authentication result-added control signal 1030 is transmitted to the peripheral unit 202B, and then the process proceeds to step S1314.

  In step S2314, the intermediate unit 202A determines whether or not the pachinko gaming machine 100 is powered off. If the peripheral portion determines that the power is not turned off (S2314: No), the processing returns to step S2301, and a series of processing is repeated. On the other hand, when it is determined that the power is turned off (S2314: Yes), the intermediate unit 202A ends the process according to this flowchart.

  Subsequently, the reception processing of various control signals from the intermediate unit 202A by the CPU 241 (third computer) of the peripheral unit 202B is the same as the flowchart shown in FIG. To do.

(Example 11 of authentication processing procedure using authentication data)
In FIG. 27, the main control board 310 that is the person to be authenticated generates a second inspection value B1 that is an operation value of the regular CPU 211 (S2401), and uses the first inspection value A1 that is an individual authentication value of the regular CPU 211. Generate (S2402). The main control board 310 determines the next calculation method as the first calculation method H1B and the second calculation method H2B among the three types of the first calculation methods H1A, H1B, H1C and the second calculation methods H2A, H2B, H2C ( S2403). Then, the main control board 310 determines the first first authentication data V1As1 = H1As (B1) based on the first calculation method H1A, the second inspection value B1, and the additional data C1, which are predetermined calculation methods. , C1), and the first authentication data V1As1 is encrypted by the encryption method M1B corresponding to the next first calculation method H1B and transmitted to the intermediate portion 202A of the peripheral board 320 (S2404). Then, the main control board 310 performs the first second authentication data V2Ac1 = H2Ac () based on the first inspection value A1 and the second inspection value B1 and the second calculation method H2A which is a predetermined calculation method this time. A1, B1) is generated, and the second authentication data V2Ac1 is encrypted by the encryption method M2B corresponding to the next second calculation method H2B and transmitted to the intermediate portion 202A of the peripheral board 320 (S2405).

  Thus, in the authentication processing procedure example 11, the second inspection value is Bn, the first inspection value is An, the first calculation method is H1As, the first authentication data is V1Asn, the second calculation method is H2Ac, and the second authentication value. The data is expressed as V2Acn, and n indicates the number of times of authentication (n = 1, 2, 3,...).

  On the other hand, the intermediate portion 202A of the peripheral board 320 includes the calculation method expected value G1B that matches the first authentication data V1As1 received from the main control board 310, and the second authentication data V2Ac1 received from the main control board 310. The matching expected value G2B for the calculation method is specified. Thus, the intermediate unit 202A specifies the decoding method N1B corresponding to the calculation method expected value G1B and the next first calculation method H1B, and also decodes the decoding method N2B corresponding to the calculation method expected value G2B. The next second calculation method H2B is specified (S2411).

  The intermediate unit 202A decrypts the first authentication data V1As1 using the specified decryption method N1B, and performs reverse operation using the first operation method H1A and additional data C1 determined in advance from the first authentication data V1As1. The second inspection value B1 is extracted to determine whether the second inspection value B1 matches the predetermined second expected value, and authentication is performed (S2412). Then, the intermediate unit 202A decrypts the second authentication data V2Ac1 by the specified decryption method N2B, and uses the second calculation method H2A and the second inspection value B1 that are determined in advance from the second authentication data V2Ac1. The first test value A1 is extracted by performing a reverse operation using the first test value, and it is determined whether or not the first test value A1 matches a predetermined first expected value to authenticate the main control board 310. This is performed (S2413). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310 based on authentication for both the first inspection value A1 and the second inspection value B1, and the intermediate authentication result data 1004 is generated. The control signal with intermediate authentication result 1030 is transmitted to the peripheral part 202B of the peripheral board 320 (S2414).

  On the other hand, the peripheral part 202B of the peripheral board 320 corresponds to the control command data 1001 and the accompanying data 1002 when the intermediate authentication result data 1004 of the control signal with intermediate authentication result 1030 received from the intermediate part 202A indicates that authentication has been established. Predetermined processing is performed (S2421). Then, the peripheral substrate 320 continues the next authentication process when authentication for both the first inspection value A1 and the second inspection value B1 is established.

  Thus, in the first authentication processing section, the first calculation method H1A and the second calculation method H2A are used as the current calculation method, and the first calculation method H1B and the second calculation method are used in the next (second) authentication processing section. The peripheral board 320 recognizes by analyzing the first authentication data V1As1 and the second authentication data V2Ac1 received from the main control board 310 that the next calculation method is switched to H2B. When the next calculation method is continued, the next calculation method may be determined as the first calculation method H1A and the second calculation method H2A.

  Subsequently, the main control board 310 generates a second inspection value B2 that is an operation value of the regular CPU 211 (S2431), and generates a first inspection value A2 that is an individual authentication value of the regular CPU 211 (S2432). The main control board 310 determines the next calculation method as the first calculation method H1C and the second calculation method H2C among the three types of the first calculation methods H1A, H1B, H1C and the second calculation methods H2A, H2B, H2C ( S2433). Then, the main control board 310 performs the second first authentication data V1Bs2 based on the first calculation method H1B, the second inspection value B2, and the additional data C2 determined as the next authentication method in the previous authentication process. = H1Bs (B2, C2) is generated, and the first authentication data V1Bs2 is encrypted by the encryption method M1C corresponding to the next first calculation method H1C and transmitted to the intermediate portion 202A of the peripheral board 320 (S2434). . The main control board 310 then performs second authentication data for the second time based on the first inspection value A2, the second inspection value B2, and the second calculation method H2B determined as the next authentication method in the previous authentication process. V2Bc2 = H2Bc (A2, B2) is generated, and the second authentication data V2Bc2 is encrypted by the encryption method M2C corresponding to the next second calculation method H2C and transmitted to the intermediate portion 202A of the peripheral board 320 (S2435). ).

  On the other hand, the intermediate portion 202A of the peripheral board 320 includes the calculation method expected value G1C that matches the first authentication data V1Bs2 received from the main control board 310, and the second authentication data V2Bc2 received from the main control board 310. A matching expected value G2C for the calculation method is specified. Thus, the intermediate unit 202A specifies the decoding method N1C corresponding to the calculation method expected value G1C and the next first calculation method H1C, and also decodes the decoding method N2C corresponding to the calculation method expected value G2C. The next second calculation method H2C is specified (S2441).

  The intermediate unit 202A decrypts the first authentication data V1Bs2 by the specified decryption method N1C, and performs reverse operation from the first authentication data V1Bs2 using the current first computation method H1B and the additional data C2. The second inspection value B2 is extracted, and it is determined whether or not the second inspection value B2 matches the predetermined second expected value, and the main control board 310 is authenticated (S2442). Then, the intermediate unit 202A decrypts the second authentication data V2Bc2 by the specified decryption method N2C, and uses the second authentication method H2B and the second check value B2 from the second authentication data V2Bc2. A reverse operation is performed to extract the first inspection value A2, and it is determined whether or not the first inspection value A2 matches a predetermined first expected value to authenticate the main control board 310 ( S2443). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310 based on authentication for both the first inspection value A2 and the second inspection value B2, and the intermediate authentication result data 1004 is generated. The control signal with intermediate authentication result 1030 is transmitted to the peripheral part 202B of the peripheral board 320 (S2444).

  On the other hand, the peripheral part 202B of the peripheral board 320 corresponds to the control command data 1001 and the accompanying data 1002 when the intermediate authentication result data 1004 of the control signal with intermediate authentication result 1030 received from the intermediate part 202A indicates that authentication has been established. Predetermined processing is performed (S2451). Then, the peripheral substrate 320 continues the next authentication process when the authentication for both the first inspection value A2 and the second inspection value B2 is established.

  As described above, in the case of the authentication processing procedure example 11, the second authentication data V2Ac1 and V2Bc2 include the second inspection value (operation value) Bn used for generating the first authentication data V1As1 and V1Bs2. In order to extract the first inspection value An from the second authentication data V2Ac1 and V2Bc2, the extraction and authentication of the second inspection value Bn are essential, so the fraud analyst analyzes the second authentication data V2Ac1 and V2Bc2. Thus, it can be difficult to reuse. In addition, the second authentication data V2Ac1 and V2Bc2 are calculated by switching different second calculation methods H2A and H2B, and the first authentication data V1As1 and V1Bs2 are switched between different first calculation methods H1A and H1B. However, it is possible to make it more difficult to analyze and reuse the first authentication data V1As1 and V1Bs2 and the second authentication data V2Ac1 and V2Bc2.

(Example 12 of authentication processing procedure using authentication data)
In FIG. 28, the main control board 310 that is the person to be authenticated generates a first inspection value A1 that is the individual authentication value of the regular CPU 211 (S2501), and uses the second inspection value B1 that is the operation value of the regular CPU 211. Generate (S2502). The main control board 310 determines the next calculation method as the first calculation method H1B and the second calculation method H2B among the three types of the first calculation methods H1A, H1B, H1C and the second calculation methods H2A, H2B, H2C ( S2503). Then, the main control board 310 determines the first authentication data V1Ac1 = H1Ac (A1) for the first time based on the first calculation method H1A, the first inspection value A1, and the additional data C1, which are predetermined calculation methods. , C1), and the first authentication data V1Ac1 is encrypted by the encryption method M1B corresponding to the next first calculation method H1B and transmitted to the intermediate portion 202A of the peripheral board 320 (S2504). Then, the main control board 310 performs the first second authentication data V2As1 = H2As (based on the second inspection value B1, the first inspection value A1, and the second calculation method H2A which is a predetermined calculation method this time. B1, A1) is generated, and the second authentication data V2As1 is encrypted by the encryption method M2B corresponding to the next second calculation method H2B and transmitted to the intermediate part 202A of the peripheral board 320 (S2505).

  Thus, in the authentication processing procedure example 12, the first inspection value is An, the second inspection value is Bn, the first calculation method is H1Ac, the first authentication data is V1Acn, the second calculation method is H2As, and the second authentication value. The data is expressed as V2Asn, and n indicates the number of times of authentication (n = 1, 2, 3,...).

  On the other hand, the intermediate portion 202A of the peripheral board 320 includes the calculation method expected value G1B that matches the first authentication data V1Ac1 received from the main control board 310, and the second authentication data V2As1 received from the main control board 310. The matching expected value G2B for the calculation method is specified. Thus, the intermediate unit 202A specifies the decoding method N1B corresponding to the calculation method expected value G1B and the next first calculation method H1B, and also decodes the decoding method N2B corresponding to the calculation method expected value G2B. The next second calculation method H2B is specified (S2511).

  The intermediate unit 202A decrypts the first authentication data V1Ac1 by the specified decryption method N1B, and performs reverse operation using the first operation method H1A and additional data C1 determined in advance from the first authentication data V1Ac1. The first inspection value A1 is extracted to determine whether or not the first inspection value A1 matches the first expected value determined in advance (S2512). Then, the intermediate unit 202A decrypts the second authentication data V2As1 by the specified decryption method N2B, and uses the second calculation method H2A and the first inspection value A1 that are determined in advance from the second authentication data V2As1. The second test value B1 is extracted by performing a reverse calculation using the second test value, and it is determined whether or not the second test value B1 matches a predetermined second expected value to authenticate the main control board 310. This is performed (S2513). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310 based on authentication for both the first inspection value A1 and the second inspection value B1, and the intermediate authentication result data 1004 is generated. The control signal with intermediate authentication result 1030 is transmitted to the peripheral part 202B of the peripheral board 320 (S2514).

  On the other hand, the peripheral part 202B of the peripheral board 320 corresponds to the control command data 1001 and the accompanying data 1002 when the intermediate authentication result data 1004 of the control signal with intermediate authentication result 1030 received from the intermediate part 202A indicates that authentication has been established. Predetermined processing is performed (S2521). Then, the peripheral substrate 320 continues the next authentication process when authentication for both the first inspection value A1 and the second inspection value B1 is established.

  In this way, in the first authentication processing section, the first calculation method H1A and the second calculation method H2A are used as the current calculation method, and the first calculation method H1B and the second calculation method H2B are used in the next (second) authentication processing section. The peripheral board 320 analyzes and recognizes the first authentication data V1Ac1 and the second authentication data V2As1 received from the main control board 310. When the next calculation method is continued, the next calculation method may be determined as the first calculation method H1A and the second calculation method H2A.

  Subsequently, the main control board 310 generates a first inspection value A2 that is an individual authentication value of the regular CPU 211 (S2531), and generates a second inspection value B2 that is an operation value of the regular CPU 211 (S2532). The main control board 310 determines the next calculation method as the first calculation method H1C and the second calculation method H2C among the three types of the first calculation methods H1A, H1B, H1C and the second calculation methods H2A, H2B, H2C ( S2533). Then, the main control board 310 performs the second first authentication data V1Bc2 based on the first calculation method H1B, the second inspection value B2, and the additional data C2 determined as the next authentication method in the previous authentication process. = H1Bc (A2, C2) is generated, and the first authentication data V1Bc2 is encrypted by the encryption method M1C corresponding to the next first calculation method H1C and transmitted to the intermediate portion 202A of the peripheral board 320 (S2534). . Then, the main control board 310 performs second authentication data V2Bs2 = H2Bs (second time) based on the second inspection value B2 and the first inspection value A2 and the second calculation method H2B which is a predetermined calculation method this time. B2, A2) are generated, and the second authentication data V2Bs2 is encrypted by the encryption method M2C corresponding to the next second calculation method H2C and transmitted to the intermediate portion 202A of the peripheral board 320 (S2535).

  On the other hand, the intermediate portion 202A of the peripheral board 320 includes the calculation method expected value G1C that matches the first authentication data V1Bc2 received from the main control board 310, and the second authentication data V2Bs2 received from the main control board 310. A matching expected value G2C for the calculation method is specified. Thus, the intermediate unit 202A specifies the decoding method N1C corresponding to the calculation method expected value G1C and the next first calculation method H1C, and also decodes the decoding method N2C corresponding to the calculation method expected value G2C. The next second calculation method H2C is specified (S2541).

  The intermediate unit 202A decrypts the first authentication data V1Bc2 using the specified decryption method N1C, and performs reverse operation using the first operation method H1B and additional data C1 determined in advance from the first authentication data V1Bc2. The first inspection value A2 is extracted to determine whether or not the first inspection value A2 matches the predetermined first expected value, and authentication is performed (S2542). Then, the intermediate unit 202A decrypts the second authentication data V2Bs2 by the specified decryption method N2C, and uses the second calculation method H2B and the first inspection value A2 that are determined in advance from the second authentication data V2Bs2. The second test value B2 is extracted by performing a reverse operation using the second test value, and it is determined whether or not the second test value B2 matches a predetermined second expected value to authenticate the main control board 310. It performs (S2543). Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating an authentication result of the main control board 310 based on authentication for both the first inspection value A1 and the second inspection value B1, and the intermediate authentication result data 1004 is generated. The control signal with intermediate authentication result 1030 is transmitted to the peripheral portion 202B of the peripheral substrate 320 (S2544).

  On the other hand, the peripheral part 202B of the peripheral board 320 corresponds to the control command data 1001 and the accompanying data 1002 when the intermediate authentication result data 1004 of the control signal with intermediate authentication result 1030 received from the intermediate part 202A indicates that authentication has been established. A predetermined process is performed (S2551). Then, the peripheral substrate 320 continues the next authentication process when the authentication for both the first inspection value A2 and the second inspection value B2 is established.

  Thus, in the case of the authentication processing procedure example 12, the second authentication data V2As1 and V2Bs2 include the first test value (individual authentication value) An used for generating the first authentication data V1Ac1 and V1Bc2. Therefore, in order to extract the second inspection value (operation value) Bn from the second authentication data V2As1 and V2Bs2, it is essential to extract and authenticate the first inspection value An. It is possible to make it difficult to analyze and reuse V2As1 and V2Bs2. Moreover, since the second authentication data V2As1 and V2Bs2 are calculated by switching different second calculation methods H2A and H2B, and the first authentication data V1Ac1 and V1Bc2 are switched between different first calculation methods H1A and H1B, an unauthorized analyst However, it is possible to make it more difficult to analyze and reuse the first authentication data V1Ac1, V1Bc2 and the second authentication data V2As1, V2Bs2.

  As for the authentication processing procedures 3 to 6 of the first embodiment, similarly to the authentication processing procedures 11 and 12 described above, a process for determining the next calculation method is added to the main control board 310 to generate and transmit authentication data. Modifying the process and adding the process of specifying the expected value for the calculation method to the peripheral part 320A intermediate part 202A to correct the first and second inspection value extraction / authentication processes, thereby enabling a plurality of types of encryption methods. It can be set as the embodiment which uses and switches a 1st, 2nd calculation system.

  According to the pachinko gaming machine 100 described above, the main control unit 201 uses the first inspection value A to inspect the individual authentication value and the second inspection value B to inspect the operation value. When the authentication data is generated, the second authentication data is generated using all or a part of the one inspection value and the other inspection value and transmitted to the peripheral portion. Since it is difficult for an unauthorized analyst to analyze the generation method of the second authentication data, the first inspection value A and the second inspection value B cannot be extracted. Unauthorized use of data to be transmitted can be prevented. Further, the intermediate unit 202A can perform individual authentication on the main control side from the first inspection value A generated by two different authentication methods, and can continue the operation state and operation on the main control side from the second inspection value B. Since the data can be inspected, the intermediate unit 202A can detect that the data is illegally used by an unauthorized analyst. Further, since the intermediate unit 202A performs the authentication process on the main control board 310 and transmits the intermediate authentication result to the peripheral unit 202B, the peripheral unit 202B only refers to the intermediate authentication result without performing the authentication process. Therefore, it is possible to reduce the processing addition of the CPU 241 in the peripheral part (production control part) 202B. Therefore, even if the authentication process is complicated, it does not affect the effect process by the peripheral portion 202B, so that both the improvement of security and the improvement of the game can be achieved. Furthermore, when the main control side, who is the person to be authenticated, does not have a high level of processing capability, it is possible to use multiple authentication methods and calculation methods with a light processing load. Can do.

  Also, the method for generating the first and second authentication data V1 and V2 is further complicated by generating the first authentication data V1 by combining one of the inspection values and the additional data C and transmitting the first authentication data V1 to the intermediate unit 202A. Therefore, unauthorized use of data transmitted from the main control unit 201 to the intermediate unit 202A can be prevented.

  Furthermore, since the first authentication data V1 and the second authentication data V2 can be added to the control command data 1001 and transmitted, compared with the case where they are transmitted alone to the intermediate unit 202A, the main control unit Since an increase in communication load between 201 and the intermediate unit 202A can be suppressed, detection of transmission timing by an unauthorized analyst can be made difficult.

  In addition, since the first and second authentication data V1 and V2 can be encrypted and transmitted from the main control unit 201 to the intermediate unit 202A, the fraud analyst can analyze the first and second authentication data V1 and V2 more. Since it can be made more difficult, unauthorized use of data transmitted from the main control unit 201 to the intermediate unit 202A can be prevented.

  Further, by generating the first and second authentication data V1, V2 using the encryption method known only by the main control unit 201, and assigning the next first and second calculation methods to the encryption method, Since the first and second authentication data V1 and V2 change depending on a plurality of types of encryption methods, unless the unauthorized analyst can analyze the plurality of types of encryption methods, the next first and second operations corresponding to the encryption method are performed. The method cannot be analyzed. In addition, since the main control unit 201 can arbitrarily switch the first and second calculation methods used for generating the first and second authentication data, unauthorized analysis by an unauthorized analyst becomes even more difficult. Can make unauthorized use of data transmitted to the intermediate unit 202A even more difficult.

(Other identification methods for the next calculation method in the middle part)
Next, in the pachinko gaming machine 100 described above, the expected value storage unit 322 of the peripheral board 320 shown in FIG. 23 stores the expected value corresponding to the first and second inspection values and the calculation corresponding to the first and second authentication data. Although the method expectation is stored in advance, in the other specific method, only the expected value corresponding to the first and second test values may be stored in the expected value storage unit 322.

  The decryption processing unit 323 decrypts the first authentication data and the second authentication data received from the main control board 310 using all of the plurality of types of decryption methods corresponding to the plurality of types of encryption methods. In order to simplify the explanation, the plurality of types of decoding schemes will be described for the above-described decoding schemes N1A to C and N2A to C shown in FIG. 24, but four or more types of decoding schemes are used. It is good also as a structure. Further, in the other specific methods, as described above, the calculation method expected values G1A to C and G2A to C in FIG. 24 are unnecessary.

  The inspection value extraction unit 324 encrypts the first inspection value and the second inspection value from all the first authentication data and the second authentication data decrypted by the decryption processing unit 323 using the encryption methods M1A to C and M2A to C. Extract in association with. Specifically, the inspection value extraction unit 324 includes encryption schemes M1A to C and M2A to the decryption schemes N1A to C and N2A to C used for decrypting the first authentication data and the second authentication data. C is identified and associated with the extracted first test value and second test value.

  The specifying unit 327 includes the first test value that matches the expected value stored in the expected value storage unit 322 from among all the first test values and the second test values extracted by the test value extraction unit 324, and the A second inspection value is specified, and the next calculation method of the inspection value extraction unit (means) 324 is determined based on the encryption methods M1A to C and M2A to C associated with the specified first inspection value and the second inspection value. It is specified from a plurality of types of calculation methods H1A to C and H2A to C (see FIG. 24). Then, the inspection value extraction unit 324 performs the next extraction process by the next calculation method specified by the specifying unit 327.

  Next, a procedure 2 ′ for receiving various control signals by the CPU 231 (second computer) of the intermediate unit 202 </ b> A will be described with reference to the flowchart of FIG. 29.

  In step S2601, the intermediate unit 202A determines whether a control signal is received from the main control unit 201. When it is determined that the control unit 202A has not received the control signal (S2601: No), the intermediate unit 202A repeats this determination process to wait for reception of the control signal. On the other hand, if it is determined that the control signal has been received (S2601: Yes), the intermediate unit 202A proceeds to the process of step S2602.

  In step S2602, the intermediate unit 202A determines whether or not the authentication data 1003 is included in the received control signal. If the intermediate unit 202A determines that the authentication data 1003 is not included (S2602: No), since it is the normal control signal 1010 that is received, the received control signal 1010 is received in step S2603. The data is transmitted as it is to the peripheral portion 202B, and then the process proceeds to step S2613. On the other hand, if the intermediate unit 202A determines that the authentication data 1003 is included (S2602: Yes), since it is the control signal with authentication data 1020 that has been received, the process proceeds to step S2604.

  In step S2604, the intermediate unit 202A acquires the authentication data 1003 included in the control signal with authentication data 1020, and the first authentication is performed in each of a plurality of different types of decryption methods N1A to C and N2A to C. The data V1c and the second authentication data V2s are decrypted and stored in the RAMs 243 and 283 so that the encryption method and the decryption method can be identified, and then the process proceeds to step S2605. When there are three types of decryption methods, three types of first authentication data V1c are stored.

  In step S2605, the intermediate unit 202A is determined in the previous process with each of the decrypted first authentication data V1c and second authentication data V2s or as an initial value ( (Only the first time) Reverse calculation is performed based on the first calculation method, the second calculation method, and the additional data C, and the first check value A ′ and the second check value B ′ are extracted and stored in the RAM 233 and the like. The information is stored so that the decoding method can be identified, and then the process proceeds to step S2606.

  In step S2606, the intermediate unit 202A determines whether each of the extracted plurality of first inspection values A ′ and second inspection values B ′ matches the expected value of the expected value storage unit 322. To do. If the intermediate part 202A determines that there is a first inspection value A ′ and a second inspection value B ′ that match the expected value (S2606: Yes), the intermediate part 202A matches the expected value. In step S2607, authentication for the main control unit 201 is established, intermediate authentication result data 1004 indicating the establishment of authentication is generated and stored in the RAM 233 and the like, and then the process proceeds to step S2608.

  In step S2608, the intermediate unit 202A specifies the encryption method associated with the first check value A ′ and the second check value B ′ that coincide with the expected value, and the next calculation method corresponding to the encryption method ( 24) is specified as the next first calculation method and the next second calculation method and stored in the RAM 233 and the like, and then the process proceeds to step S2609.

  In step S2609, the intermediate unit 202A changes the second inspection value B ′, which is the operation value, according to the operation of the main control unit 201, so that the second value of the expected value storage unit 322 corresponds to the change. The expected value is updated, and then the process proceeds to S2611. As an example of updating the second expected value, when the operation value is incremented by the number of processes, the second expected value is incremented and updated.

  On the other hand, if it is determined in step S2606 that the first inspection value A ′ and the second inspection value B ′ that match the expected value do not exist (S2606: No), the intermediate unit 202A does not match the expected value. Therefore, in step S2610, authentication with respect to the main control unit 201 is not established, intermediate authentication result data 1004 indicating that authentication is not established is generated and stored in the RAM 233 or the like, and then the process proceeds to step S2611.

  In step S2611, the intermediate unit 202A adds the generated intermediate authentication result data 1004 to the control command data 1001 and the accompanying data 1002 extracted from the received control signal with authentication data 1020, and adds a control signal with an intermediate authentication result. 1030 is generated, and in step S2612, the generated control signal with intermediate authentication result 1030 is transmitted to the peripheral unit 202B, and then the process proceeds to step S2613.

  In step S2613, the intermediate unit 202A determines whether or not the pachinko gaming machine 100 is powered off. If the intermediate unit 202A determines that the power is not turned off (S2613: No), the intermediate unit 202A returns to the process of step S2601 and repeats a series of processes. On the other hand, when it is determined that the power is turned off (S2613: Yes), the intermediate unit 202A ends the process according to the flowchart.

  When the intermediate section 202A configured as described above is applied to the peripheral board 320 described above, the authentication processing procedure is as follows. As shown in FIG. 24, it is assumed that three types of encryption methods M1A to C, M2A to C, and decryption methods N1A to C and N2A to C are used.

  The main control board 310 that is the person to be authenticated generates a second inspection value B1 that is an operation value of the regular CPU 211, and is an individual authentication value of the regular CPU 211, similarly to steps S2401 to S2405 of FIG. A first inspection value A1 is generated. The main control board 310 determines the next calculation method as the first calculation method H1B and the second calculation method H2B among the three types of first calculation methods H1A, H1B, H1C and the second calculation methods H2A, H2B, H2C. Then, the main control board 310 determines the first first authentication data V1As1 = H1As (B1) based on the first calculation method H1A, the second inspection value B1, and the additional data C1, which are predetermined calculation methods. , C1), and the first authentication data V1As1 is encrypted by the encryption method M1B corresponding to the next first calculation method H1B and transmitted to the intermediate portion 202A of the peripheral board 320. Then, the main control board 310 performs the first second authentication data V2Ac1 = H2Ac () based on the first inspection value A1 and the second inspection value B1 and the second calculation method H2A which is a predetermined calculation method this time. A1, B1) is generated, and the second authentication data V2Ac1 is encrypted by the encryption method M2B corresponding to the next second calculation method H2B and transmitted to the intermediate portion 202A of the peripheral board 320.

  On the other hand, the intermediate section 202A of the peripheral board 320 decodes the first authentication data V1As1 and the second authentication data V2Ac1 received from the main control board 310 by three kinds of decoding methods N1A to C and N2A to C, respectively. Three decrypted first authentication data V1As1 and second authentication data V2Ac1 are obtained. The intermediate unit 202A extracts the first inspection value and the second inspection value from each of the first authentication data V1As1 and the second authentication data V2Ac1, and compares them with the first and second expected values. When the intermediate unit 202A specifies the first inspection value and the second inspection value that match the first and second expected values, the intermediate unit 202A establishes authentication of the main control board 310, and the matching first inspection value and second inspection value. The encryption method corresponding to the value is specified from the three types of encryption methods M1A to C and M2A to C. For example, when the encryption methods M1B and M2B are specified, the peripheral board 320 specifies the first calculation method H1B and H2B as the next calculation method. Then, the intermediate unit 202A generates intermediate authentication result data 1004 indicating the authentication result of the main control unit 201, and transmits the intermediate authentication result data 1004 to the peripheral unit 202B by the control signal with intermediate authentication result 1030.

  On the other hand, when the intermediate authentication result data 1004 of the control signal with intermediate authentication result 1030 received from the intermediate unit 202A indicates that authentication has been established, the peripheral unit 202B performs predetermined processing corresponding to the control command data 1001 in the pachinko gaming machine 100. I do. Further, when the received intermediate authentication result data 1004 indicates that authentication is not established, the peripheral unit 202B outputs a notification signal from, for example, the speaker 262 (see FIG. 2). Then, the peripheral substrate 320 continues the next authentication process when authentication for both the first inspection value A1 and the second inspection value B1 is established.

  Even if the peripheral board 320 is configured in this manner, the pachinko gaming machine 100 can obtain the same functions and effects as those of the second embodiment.

  Note that the method for controlling the main control unit and the peripheral units described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, CD-ROM, MO, DVD, and the like, and is executed by being read from the recording medium by the computer. The program may be an electric transmission medium that can be distributed via a network such as the Internet.

  As described above, the present invention is useful for a gaming machine in which fraud to the main control unit is concerned and a control board mounted on the gaming machine, and in particular, a pachinko gaming machine, a slot gaming machine, and a sparrow ball gaming machine. It can be applied to various other gaming machines. Even in these gaming machines, the same effects as those of the above-described embodiments can be obtained by configuring similarly to the above-described embodiments.

100 Pachinko machines 201 Main control unit 202A Intermediate unit 202B Peripheral unit (production control unit)
310 main control board 311 data storage unit 312 first inspection value generation unit 313 operation value acquisition unit 314 second inspection value generation unit 315 first authentication data generation unit 316 second authentication data generation unit 317 encryption processing unit 318 main Control side transmission unit 319 Next calculation method determination unit 320 Peripheral board 321 Intermediate side reception unit 322 Expected value storage unit 323 Decoding processing unit 324 Inspection value extraction unit 325 Intermediate authentication result data generation unit 326 Intermediate side transmission unit 327 Identification unit 331 Peripheral Side receiving unit 332 processing unit

Claims (7)

In a gaming machine including a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit,
The main control unit
Program data storage means for storing program data defining the operation of the main control unit;
Individual authentication value storage means for storing a plurality of types of individual authentication values for specifying the next encryption method from among a plurality of different types of encryption methods of the main control unit;
First test value generation means for generating a first test value for testing one individual authentication value selected from the plurality of types of individual authentication values by a first authentication method;
An operation value acquisition means for acquiring an operation value that changes corresponding to the operation of the main control unit that has executed the program data;
Second inspection value generation means for generating a second inspection value for inspecting the acquired operation value by a second authentication method;
A first authentication data generating means for generating a first authentication data by calculating one of the first inspection value and the second inspection value using a predetermined first calculation method;
The first test value different from the one test value or the other test value of the second test value and all or a part of the one test value are calculated by a predetermined second calculation method. Second authentication data generating means for generating two authentication data;
The next authentication method is specified from the individual authentication value selected by the first inspection value generation means, the plurality of types of encryption methods are switched to the next encryption method, and the first authentication data generation is performed. Encryption means for encrypting at least one of the first authentication data generated by the means and the second authentication data generated by the second authentication data generation means;
The pre-Symbol first authentication data and the second authentication data and a main control side transmission means for transmitting to said intermediate portion,
The intermediate part is
Intermediate side receiving means for receiving the first authentication data and the second authentication data from the main control unit;
Expected value data storage means for storing a plurality of expected value data corresponding to each of the plurality of types of individual authentication values and corresponding to each of the plurality of types of encryption methods;
A plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods are used to convert the received first authentication data and second authentication data by a decryption method corresponding to the encryption method of the encryption means. Decoding means for switching and decoding;
Inspection value extraction means for extracting the first inspection value or the second inspection value from the decrypted first authentication data and second authentication data based on the first operation method and the second operation method;
Comparing the expected value of the first check value and the expected value data storage means stores the generated intermediate authentication result data indicating whether the main control unit authentication based on the comparison result is established Intermediate authentication result data generating means for
Intermediate side transmission means for transmitting the generated intermediate authentication result data to the peripheral part,
The peripheral portion is
Peripheral side receiving means for receiving the intermediate authentication result data from the intermediate unit;
A gaming machine comprising processing means for performing the predetermined processing in accordance with the received intermediate authentication result data. In a gaming machine including a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit,
The main control unit
Program data storage means for storing program data defining the operation of the main control unit;
First test value generation means for generating a first test value for testing the individual authentication value of the main control unit by a first authentication method;
An operation value acquisition means for acquiring an operation value that changes corresponding to the operation of the main control unit that has executed the program data;
Second inspection value generation means for generating a second inspection value for inspecting the acquired operation value by a second authentication method;
A first calculation method including a plurality of different calculation methods in which one of the first check value and the second check value is associated with a plurality of different encryption methods in a one-to-one relationship. First authentication data generating means for calculating the first authentication data by calculating
A plurality of different types of encryption methods are used in a one-to-one relationship between the first inspection value or the second inspection value different from the one inspection value and all or part of the one inspection value. A second authentication data generating means for generating a second authentication data by calculating with a second calculation method having a plurality of different calculation methods associated with each other ;
A next calculation method determining means for determining a next calculation method used for generation of the next first authentication data and the second authentication data from the plurality of types of calculation methods;
The first authentication data generated by the first authentication data generation means and the second authentication generated by the second authentication data generation means in an encryption method indicating the next calculation method determined by the next calculation method determination means. Encryption means for encrypting at least one of the business data;
The pre-Symbol first authentication data and the second authentication data and a main control side transmission means for transmitting to said intermediate portion,
The intermediate part is
Intermediate side receiving means for receiving the first authentication data and the second authentication data from the main control unit;
The expected value for the calculation method of the first authentication data and the second authentication data generated corresponding to each of the plurality of types of encryption methods is assigned to the plurality of types of encryption methods and the respective encryption methods. Expected value storage means for calculation method for storing a plurality of items in association with the corresponding next calculation method;
The calculation method expectation value that matches the received first authentication data and second authentication data is identified from among the plurality of calculation method expectation values, and the corresponding calculation method expectation value corresponds to the matching operation method expectation value A specifying means for specifying an encryption method and specifying the next calculation method from the plurality of types of calculation methods;
Decryption means for decrypting the received first authentication data and second authentication data based on a decryption method corresponding to the specified encryption method;
Inspection value extraction means for extracting the first inspection value or the second inspection value from the decrypted first authentication data and second authentication data based on the specified next calculation method ;
A comparison is made as to whether or not the predetermined expected value corresponding to each of the first test value or the second test value matches the extracted first test value and second test value. Intermediate authentication result data generating means for generating intermediate authentication result data indicating whether or not the authentication of the main control unit based on
Intermediate side transmission means for transmitting the generated intermediate authentication result data to the peripheral part,
The peripheral portion is
Peripheral side receiving means for receiving the intermediate authentication result data from the intermediate unit;
A gaming machine comprising processing means for performing the predetermined processing in accordance with the received intermediate authentication result data. In a gaming machine including a main control unit that transmits a control command, an intermediate unit, and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit,
The main control unit
Program data storage means for storing program data defining the operation of the main control unit;
First test value generation means for generating a first test value for testing the individual authentication value of the main control unit by a first authentication method;
An operation value acquisition means for acquiring an operation value that changes corresponding to the operation of the main control unit that has executed the program data;
Second inspection value generation means for generating a second inspection value for inspecting the acquired operation value by a second authentication method;
A first calculation method including a plurality of different calculation methods in which one of the first check value and the second check value is associated with a plurality of different encryption methods in a one-to-one relationship. First authentication data generating means for calculating the first authentication data by calculating
A plurality of different types of encryption methods are used in a one-to-one relationship between the first inspection value or the second inspection value different from the one inspection value and all or part of the one inspection value. A second authentication data generating means for generating a second authentication data by calculating with a second calculation method having a plurality of different calculation methods associated with each other ;
A next calculation method determining means for determining a next calculation method used for generation of the next first authentication data and the second authentication data from the plurality of types of calculation methods;
The first authentication data generated by the first authentication data generation means and the second authentication generated by the second authentication data generation means in an encryption method indicating the next calculation method determined by the next calculation method determination means. Encryption means for encrypting at least one of the business data;
The pre-Symbol first authentication data and the second authentication data and a main control side transmission means for transmitting to said intermediate portion,
The intermediate part is
Intermediate side receiving means for receiving the first authentication data and the second authentication data from the main control unit;
Decryption means for decrypting the received first authentication data and second authentication data with all of a plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods;
Inspection value extraction means for extracting the first inspection value and the second inspection value in association with the encryption method from all the decrypted first authentication data and second authentication data ;
The first inspection value and the second inspection value that match the expected value are identified from among all the extracted first inspection values and the second inspection values, and the identified first inspection value and the identified A specifying unit for specifying the next calculation method of the test value extraction unit based on the encryption method associated with a second check value from the plurality of types of calculation methods;
A comparison is made as to whether or not the predetermined expected value corresponding to each of the first test value or the second test value matches the extracted first test value and second test value. Intermediate authentication result data generating means for generating intermediate authentication result data indicating whether or not the authentication of the main control unit based on
Intermediate side transmission means for transmitting the generated intermediate authentication result data to the peripheral part,
The peripheral portion is
Peripheral side receiving means for receiving the intermediate authentication result data from the intermediate unit;
A gaming machine comprising processing means for performing the predetermined processing in accordance with the received intermediate authentication result data. In a main control board that is used in a gaming machine including a peripheral board composed of an intermediate part and a peripheral part, and transmits a control command for performing a predetermined process in the gaming machine to the peripheral part via the intermediate part.
Program data storage means for storing program data defining the operation of the main control board;
Individual authentication value storage means for storing a plurality of types of individual authentication values for specifying the next encryption method from among a plurality of different types of encryption methods of the main control unit;
First test value generation means for generating a first test value for testing one individual authentication value selected from the plurality of types of individual authentication values by a first authentication method;
An operation value acquisition means for acquiring an operation value that changes corresponding to the operation of the main control board that has executed the program data;
Second inspection value generation means for generating a second inspection value for inspecting the acquired operation value by a second authentication method;
A first authentication data generating means for generating a first authentication data by calculating one of the first inspection value and the second inspection value using a predetermined first calculation method;
The first test value different from the one test value or the other test value of the second test value and all or a part of the one test value are calculated by a predetermined second calculation method. Second authentication data generating means for generating two authentication data;
The next authentication method is specified from the individual authentication value selected by the first inspection value generation means, the plurality of types of encryption methods are switched to the next encryption method, and the first authentication data generation is performed. Encryption means for encrypting at least one of the first authentication data generated by the means and the second authentication data generated by the second authentication data generation means;
The main control board, characterized in that it comprises a main control side transmission means for transmitting the pre-Symbol first authentication data and second authentication data in the middle portion of the peripheral substrate. In a peripheral board that is mounted on a gaming machine including the main control board according to claim 4 and performs a predetermined process based on a control command transmitted by the main control board,
Intermediate receiving means for receiving the first authentication data and the second authentication data from the main control board;
Expected value data storage means for storing a plurality of expected value data corresponding to each of the plurality of types of individual authentication values and corresponding to each of the plurality of types of encryption methods;
A plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods are used to convert the received first authentication data and second authentication data by a decryption method corresponding to the encryption method of the encryption means. Decoding means for switching and decoding;
Inspection value extraction means for extracting the first inspection value or the second inspection value from the decrypted first authentication data and second authentication data based on the first operation method and the second operation method;
Comparing the expected value of the first check value and the expected value data storage means stores the generated intermediate authentication result data indicating whether the main control board authentication based on the comparison result is established Intermediate authentication result data generating means for
An intermediate side transmission means for transmitting the generated intermediate authentication result data to the peripheral part, and an intermediate part,
Peripheral side receiving means for receiving the intermediate authentication result data from the intermediate unit;
Peripheral board, characterized in that it comprises a peripheral portion and a processing means for performing predetermined processing in accordance with the intermediate authentication result the received data. In a gaming machine authentication method comprising: a main control unit that transmits a control command; an intermediate unit; and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit.
The main control unit
A first inspection value for inspecting one individual authentication value selected from a plurality of types of individual authentication values for specifying the next encryption method from among a plurality of different types of encryption methods of the main control unit. A first inspection value generation step generated by the first authentication method;
An operation value acquisition step of acquiring an operation value that changes corresponding to the operation of the main control unit that has executed the program data defining the operation of the main control unit stored in the program data storage unit;
A second inspection value generation step of generating a second inspection value for inspecting the acquired operation value by a second authentication method;
A first authentication data generating step of generating either one of the first inspection value or the second inspection value by a predetermined first calculation method to generate first authentication data;
The first test value different from the one test value or the other test value of the second test value and all or a part of the one test value are calculated by a predetermined second calculation method. A second authentication data generation step for generating two authentication data;
The next authentication method is specified from the individual authentication value selected in the first inspection value generation step, the plurality of types of encryption methods are switched to the next encryption method, and the first authentication data generation is performed. An encryption step for encrypting at least one of the first authentication data generated by the step and the second authentication data generated by the second authentication data generation step;
The pre-Symbol first authentication data and the second authentication data and a main control side transmission step of transmitting to the intermediate portion,
The intermediate part is
An intermediate receiving step of receiving the first authentication data and the second authentication data from the main control unit;
A plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods are used to convert the received first authentication data and second authentication data by a decryption method corresponding to the encryption method of the encryption step. A decoding step of switching and decoding;
A test value extraction step of extracting the first test value or the second test value from the decrypted first authentication data and second authentication data based on the first calculation method and the second calculation method;
The first test value is compared with expected value data corresponding to each of the plurality of types of individual authentication values and corresponding to each of the plurality of types of encryption methods , and the main control unit based on the comparison result An intermediate authentication result data generation step for generating intermediate authentication result data indicating whether or not authentication has been established;
An intermediate transmission step of transmitting the generated intermediate authentication result data to the peripheral part,
The peripheral portion is
A peripheral side receiving step of receiving the intermediate authentication result data from the intermediate unit;
And a processing step of performing the predetermined processing in accordance with the received intermediate authentication result data. A gaming machine authentication program comprising: a main control unit that transmits a control command; an intermediate unit; and a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit;
A first computer of the main control unit;
A first inspection value for inspecting one individual authentication value selected from a plurality of types of individual authentication values for specifying the next encryption method from among a plurality of different types of encryption methods of the main control unit. First inspection value generation means for generating the first authentication method;
An operation value acquisition unit that acquires an operation value that changes in response to the operation of the main control unit that has executed the program data defining the operation of the main control unit stored in the program data storage unit;
Second inspection value generation means for generating a second inspection value for inspecting the acquired operation value by a second authentication method;
A first authentication data generating means for generating a first authentication data by calculating one of the first inspection value and the second inspection value using a predetermined first calculation method;
The first test value different from the one test value or the other test value of the second test value and all or a part of the one test value are calculated by a predetermined second calculation method. Second authentication data generating means for generating two authentication data;
The next authentication method is specified from the individual authentication value selected by the first inspection value generation means, the plurality of types of encryption methods are switched to the next encryption method, and the first authentication data generation is performed. Encryption means for encrypting at least one of the first authentication data generated by the means and the second authentication data generated by the second authentication data generation means;
The pre-Symbol first authentication data and the second authentication data to function as a main control side transmission means for transmitting to said intermediate portion,
A second computer in the middle section;
Intermediate side receiving means for receiving the first authentication data and the second authentication data from the main control unit;
A plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods are used to convert the received first authentication data and second authentication data by a decryption method corresponding to the encryption method of the encryption means. Decoding means for switching and decoding;
Inspection value extraction means for extracting the first inspection value or the second inspection value from the decrypted first authentication data and second authentication data based on the first operation method and the second operation method;
The first test value is compared with expected value data corresponding to each of the plurality of types of individual authentication values and corresponding to each of the plurality of types of encryption methods , and the main control unit based on the comparison result Intermediate authentication result data generating means for generating intermediate authentication result data indicating whether or not authentication has been established;
Function as an intermediate transmission means for transmitting the generated intermediate authentication result data to the intermediate unit; and
A third computer in the periphery;
Peripheral side receiving means for receiving the intermediate authentication result data from the intermediate unit;
An authentication program for a gaming machine for functioning as processing means for performing the predetermined processing in accordance with the received intermediate authentication result data.

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