JP2012010747A - Gaming machine, main control board, peripheral board, method for authentication of gaming machine, and authentication program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent data transmitted from a main control unit to a peripheral unit from being used for unauthorized control, and reduce the processing load of a peripheral CPU.SOLUTION: A main control unit generates a synchronous check value using a latest synchronous approach, and extracts an authentication value corresponding to the next synchronous approach. The main control unit generates a first check value for checking the authentication value, and generates a second check value for checking the synchronous check value. The main control unit transmits first and second authentication data generated using the first and second check values to a subsequent unit through the peripheral unit. The subsequent unit extracts the first and second check values from the received first and second authentication data based on first and second calculation methods. The subsequent unit compares the first check value with an expectation value for coincidence between them to determine the correctness of the first check value, determines whether the second check value satisfies the relation conditions of the latest synchronous approach, and transmits subsequent unit authentication result data representing the authentication result of the main control unit to the peripheral unit. The peripheral unit executes predetermined processing according to the subsequent unit authentication result data received from the subsequent unit.

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 gaming machines having a plurality of boards, various techniques have been proposed for preventing fraud on these boards. An example of a gaming machine provided with a plurality of boards is a pachinko gaming machine. The pachinko gaming machine includes a main control board that controls the operation of the entire gaming machine, and a controlled board (peripheral board) that performs the operation of each part of the gaming machine. 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 a gaming machine having such a configuration, the illegality with respect to the main control board includes, 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. 24 is an explanatory diagram showing an outline of a fraud prevention technique according to the prior art. FIG. 25 is an explanatory diagram showing an example of inserting an unauthorized control board. 24 and 25, the unauthorized control will be described in detail with reference to the unauthorized control board. As shown in FIG. 24, 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. 25, an illegal control board 1601 may be inserted between the regular main control board 1501 and the peripheral board 1502 in order to perform illegal control of the gaming machine. 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. 26 is an explanatory diagram showing an outline of signal switching by the signal switching circuit. As shown in FIG. 26, in an unauthorized control board 1601, a signal switching circuit 1603 may be mounted 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 1504 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, a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit, and a In a gaming machine comprising a subsequent stage unit that performs authentication, the main control unit is associated with each of a plurality of different types of synchronization methods used for communication with the subsequent stage unit, and the main control unit is an individual Confirm the continuity of communication with the succeeding part using the individual authentication value storage means for storing a plurality of types of individual authentication values for authentication and the current synchronization method selected from the plurality of types of synchronization methods. A synchronization check value generating means for generating a synchronization check value for the next synchronization method selection means for selecting a next synchronization method to be used next to the current synchronization method from the plurality of types of synchronization methods, and the selection Next time An individual authentication value extracting means for extracting an individual authentication value associated with the method from the individual authentication value storage means; and a first inspection for generating a first inspection value for inspecting the extracted individual authentication value by the first authentication method. A value generation means; a second inspection value generation means for generating a second inspection value for inspecting the generated synchronous inspection value by a second authentication method; and one of the first inspection value and the second inspection value. First authentication data generating means for generating first authentication data by calculating an inspection value by a predetermined first calculation method, and the first inspection value or the second inspection different from the one inspection value A second authentication data generating means for generating the second authentication data by calculating the other inspection value of the value and all or a part of the one inspection value by a predetermined second operation method; The first authentication data and the second authentication data thus obtained are Main control side transmission means for transmitting via the peripheral part, and the latter part corresponds to each of the plurality of types of individual authentication values, and each of the plurality of types of synchronization methods corresponds to one to one. Expected value data storage means for storing a plurality of attached expected value data, post-stage receiving means for receiving the first authentication data and the second authentication data transferred from the peripheral portion, and the received first data Inspection value extraction means for extracting the first inspection value and the second inspection value from the first authentication data and the second authentication data based on the first calculation method and the second calculation method, and the extracted first Whether test value storage means for storing a plurality of test values and second test values in time series in association with each other, and whether the expected value data that matches the extracted first test value is stored in the expected value data storage means Based on the judgment result Therefore, based on the first determination means for determining the validity of the first inspection value and the plurality of second inspection values stored in the inspection value storage means, the second inspection value extracted this time is the current time Second determination means for determining whether or not a predetermined correlation condition corresponding to the synchronization method is satisfied, and based on the determination results of the first determination means and the second determination means, A post-stage authentication result data generating means for generating post-stage authentication result data indicating whether or not authentication has been established; a post-stage side transmission means for transmitting the generated post-stage authentication result data to the peripheral part; and the second determination means. When it is determined that the correlation condition is satisfied, the synchronization method corresponding to the expected value data that matches the first inspection value in the synchronization method is specified, and the next synchronization method of the second determination unit A decision means to decide; The peripheral unit receives the first authentication data and the second authentication data received from the main control unit to the subsequent unit, and receives the subsequent authentication result data from the subsequent unit. Peripheral-side receiving means, and processing means for performing the predetermined processing in accordance with the received subsequent authentication result data.

  According to the gaming machine of the present invention described in claim 1, the main control unit generates a synchronization check value in the current synchronization method, selects the next synchronization method from a plurality of types of synchronization methods, and The individual authentication value corresponding to the next synchronization method is extracted from the individual authentication value storage means. The main control unit generates a first inspection value for inspecting the individual authentication value by the first authentication method, and generates a second inspection value for inspecting the synchronous inspection value by the second operation 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 transmits the first authentication data and the second authentication data to the subsequent unit. On the other hand, the peripheral unit transfers the first authentication data and the second authentication data received from the main control unit to the subsequent unit. Then, the subsequent stage extracts the first inspection value and the second inspection value from the first authentication data and the second authentication data received from the peripheral portion based on the first calculation method and the second calculation method. The subsequent stage compares the first inspection value with a predetermined expected value to determine the validity of the first inspection value, and the second inspection value is determined based on the correlation condition of the current synchronization method. Is generated, and subsequent-stage authentication result data indicating whether or not authentication of the main control unit is established is generated based on the determination results and transmitted to the subsequent-stage unit. If it is determined that the synchronization check value satisfies the correlation condition, the subsequent stage unit specifies the synchronization method corresponding to the expected value data that matches the first check value in the current synchronization method, and determines the next synchronization method. be able to. On the other hand, the peripheral part can perform a predetermined process in the gaming machine according to the subsequent authentication result data received from the subsequent part.

  According to a second aspect of the present invention, in the gaming machine according to the first aspect, the second determination unit is configured such that a difference between a plurality of continuous second test values stored in the test value storage unit in time series is obtained. It is means for determining whether or not the correlation condition is satisfied.

  According to the gaming machine of the present invention described in claim 2 above, the subsequent stage is configured such that the difference between a plurality of consecutive second test values stored in the test value storage means in time series is the correlation of the current synchronization method. Whether or not the condition is satisfied can be determined.

  According to a third aspect of the present invention, in the gaming machine according to the first or second aspect, each of the plurality of types of synchronization methods uses a plurality of different synchronization check values, and the next synchronization method selection means includes the The means for selecting the next synchronization method when generating a first inspection value in a predetermined order from among a plurality of first inspection values corresponding to the current synchronization method; The next synchronization method is determined based on the individual authentication values in a predetermined order from among a plurality of first test values corresponding to the synchronization method.

  According to the gaming machine of the present invention described in claim 3, the main control unit generates a plurality of different synchronization check values in the current synchronization method, and transmits them to the subsequent stage unit via the peripheral unit. The main control unit selects the next synchronization method when creating a first inspection value in a predetermined order from among a plurality of first inspection values corresponding to each of the synchronous inspection values (second inspection values). Then, a first inspection value corresponding to the next synchronization method is generated and transmitted to the subsequent stage part via the peripheral part. On the other hand, the subsequent stage unit can determine the next synchronization method based on the first test value (individual authentication value) in a predetermined order from among the plurality of first test values corresponding to the current synchronization method. .

  According to a fourth aspect of the present invention, in the gaming machine according to any one of the first to third aspects, the first authentication data generating means includes the one inspection value and predetermined additional data. The first authentication data is generated in combination with the first calculation method, and the second authentication data generation means includes all or a part of the one inspection value and at least one of the additional data. The second inspection value is calculated by the second calculation method to generate the second authentication data, and the inspection value extraction unit is configured to calculate the expected value from the received first authentication data. And means for extracting the one inspection value based on the additional data and the first calculation method.

  According to the gaming machine of the present invention described in claim 4, when the main control unit generates the first authentication data by combining one of the inspection values and the additional data, the main authentication unit transmits the first authentication data to the peripheral unit. Is transmitted to the subsequent stage via the. On the other hand, when the subsequent stage part extracts the first inspection value from the first authentication data, it extracts one inspection value based on all or a part of the first inspection value, the additional data, and the first calculation method. Can do.

  According to a fifth aspect of the present invention, in the gaming machine according to any one of the first to fourth aspects, the main control side transmission means includes the first authentication data and the second authentication data in the control command. Is added to at least one of the first and second transmission units, and the second reception unit receives the first authentication data and the second authentication data added to the control command from the peripheral unit. It is a means to do.

  According to the gaming machine of the present invention described in claim 5, when the main control unit generates the first authentication data and the second authentication data, at least one of them is added to the control command and transmitted to the subsequent unit. can do. Then, the latter part can receive the first authentication data and the second authentication data added to the control command from the peripheral part.

  According to a sixth aspect of the present invention, in the gaming machine according to any one of the first to fifth aspects, the main control unit includes the first authentication data generated by the first authentication data generation unit and the first authentication data. An encryption unit that encrypts at least one of the second authentication data generated by the second authentication data generation unit using a predetermined encryption method, and the main control side transmission unit includes the encrypted first data Means for transmitting one authentication data and the second authentication data to the succeeding part via the peripheral part, and the succeeding part receives the received data in a decryption method corresponding to the encryption method of the encrypting means. Decrypting means for decrypting the first authentication data and the second authentication data, wherein the inspection value extracting means is configured to extract the first inspection value from the decrypted first authentication data and second authentication data. And the second inspection value is changed to the first performance value. Characterized in that it is a means for extracting, based on the method and the second calculation method.

  According to the gaming machine of the present invention described in claim 6, the main control unit encrypts at least one of the generated first authentication data and second authentication data with a predetermined encryption method and Can be sent to the department. On the other hand, the latter part decrypts the first authentication data and the second authentication data received from the main control unit via the peripheral part in a decryption method corresponding to the encryption method used in the main control unit. The first inspection value and the second inspection value can be extracted from the authentication data based on the first calculation method and the second calculation method.

  According to a seventh aspect of the present invention, in the gaming machine according to the sixth aspect, each of the first calculation method and the second calculation method is a phase in which a plurality of different encryption methods are associated one-to-one. Next, a plurality of different types of calculation methods are provided, and the main control unit determines a next calculation method to be used for the next generation of the first authentication data and the second authentication data from the plurality of types of calculation methods. Means for encrypting the first authentication data and the second authentication data in an encryption method indicating the next operation method determined by the next operation method determining means; And the latter stage unit calculates the expected value for the calculation method of the first authentication data generated corresponding to each of the plurality of types of encryption methods, the plurality of types of encryption methods and the respective encryption methods. Next time calculation method corresponding to A plurality of calculation method expected value storage means associated with the first calculation method expected value for the received first authentication data from the plurality of calculation method expected values. Specifying the encryption method corresponding to the expected value for the calculation method and specifying the next calculation method from the plurality of types of calculation methods, and the decryption means includes the specified encryption Is a means for decoding the received first authentication data and second authentication data based on a decoding method corresponding to an encryption method, and the test value extraction means is based on the specified next calculation method, It is means for extracting the first inspection value or the second inspection value from the received first authentication data and second authentication data.

  According to the gaming machine of the present invention described in claim 7, the main control unit selects the next calculation method used for the next generation of the first authentication data and the second authentication data from a plurality of types of calculation methods. When the determination is made, at least one of the first authentication data and the second authentication data can be encrypted by the encryption method indicating the next calculation method. On the other hand, when the latter part identifies the expected value for the calculation method that matches the received first authentication data from among a plurality of types of expected value for the calculation method, the encryption corresponding to the matching expected value for the calculation method The method is specified, and the next calculation method is specified from a plurality of types of calculation methods. Then, when the subsequent stage decrypts the received first authentication data and second authentication data based on the decryption method corresponding to the specified encryption method, the first stage corresponding to the specified next operation method Based on the calculation method and the second calculation method, a first inspection value or a second inspection value can be extracted from the received first authentication data and second authentication data.

  The invention according to claim 8 is the gaming machine according to claim 6, wherein each of the first calculation method and the second calculation method is a phase in which a plurality of different types of encryption methods are associated one-to-one. Next, a plurality of different types of calculation methods are provided, and the main control unit determines a next calculation method to be used for the next generation of the first authentication data and the second authentication data from the plurality of types of calculation methods. Means for encrypting the first authentication data and the second authentication data in an encryption method indicating the next operation method determined by the next operation method determining means; And the decryption means at the latter stage decrypts the received first authentication data and second authentication data with all of the plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods. Means to do, before Inspection value extraction means is means for performing the extraction by associating the first inspection value and the second inspection value with the encryption method from all the decrypted first authentication data and second authentication data, The latter part identifies the first inspection value that matches the expected value from among all the extracted first inspection values, and applies the encryption method associated with the identified first inspection value. On the basis of this, it is characterized by comprising specifying means for specifying the next calculation method of the inspection value extraction means from the plurality of types of calculation methods.

  According to the gaming machine of the present invention described in claim 8, the main control unit selects the next calculation method used for generating the next first authentication data and second authentication data from a plurality of types of calculation methods. When the determination is made, the first authentication data and the second authentication data can be encrypted by the encryption method indicating the next calculation method. On the other hand, the latter part performs decryption on the received first authentication data and second authentication data with all of the plurality of types of decryption methods corresponding to each of the plurality of types of encryption methods. 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 subsequent stage specifies a first test value that matches an expected value from all the extracted first test values, and a plurality of types of calculation methods based on an encryption method associated with the specified first test value The next calculation method is specified from the list. Then, based on the first calculation method and the second calculation method corresponding to the specified next calculation method, the subsequent stage unit calculates the first inspection value or the second authentication data from the first authentication data and the second authentication data received from the main control unit. A second inspection value can be extracted.

  The main control board according to claim 9 according to the present invention is used in a gaming machine including a peripheral board composed of a peripheral part and a rear part, and transmits a control command for performing predetermined processing in the gaming machine to the peripheral part. In addition, in the main control board authenticated by the rear stage unit, one-to-one correspondence with each of a plurality of different synchronization methods used for communication with the peripheral board and for individual authentication of the main control board Synchronization for confirming the continuity of communication with the subsequent stage in the individual authentication value storage means for storing a plurality of types of individual authentication values and the current synchronization method selected from the plurality of types of synchronization methods A synchronous test value generating means for generating a check value; a next synchronization method selecting means for selecting a next synchronization method to be used next to the current synchronization method from the plurality of types of synchronization methods; and the selected next An individual authentication value extraction unit that extracts the individual authentication value associated with the synchronization method from the individual authentication value storage unit, and a first inspection value that inspects the extracted individual authentication value is generated by the first authentication method. First inspection value generation means, second inspection value generation means for generating a second inspection value for inspecting the generated synchronous inspection value by a second authentication method, and either the first inspection value or the second inspection value A first authentication data generating means for generating the first authentication data by calculating one of the inspection values by a predetermined first calculation method, and the first inspection value different from the one inspection value or Second authentication data generation means for generating second authentication data by calculating the other inspection value of the second inspection value and all or a part of the one inspection value by a predetermined second calculation method; The generated first authentication data and second authentication data Characterized in that it comprises a main control side transmission means for transmitting through the peripheral portion to the second part.

  According to the main control board of the present invention described in claim 9, the synchronization check value is generated by the current synchronization method, the next synchronization method is selected from a plurality of types of synchronization methods, and the next synchronization method is selected. The individual authentication value corresponding to is extracted from the individual authentication value storage means. Then, a first inspection value for inspecting the individual authentication value is generated by the first authentication method, and a second inspection value for inspecting the synchronous inspection value is generated by the second operation 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 The second authentication data can be 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. The main control board can transfer the first authentication data and the second authentication data from the peripheral part of the peripheral board to the subsequent stage part.

  A peripheral board according to claim 10 according to the present invention is mounted on a gaming machine including the main control board according to claim 9 and performs a predetermined process based on a control command transmitted by the main control board. In the substrate, 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 each of the plurality of types of synchronization methods being associated one-to-one, and from the peripheral portion Subsequent receiving means for receiving the transferred first authentication data and second authentication data, and the first inspection value and the second inspection from the received first authentication data and second authentication data. Test value extraction means for extracting values based on the first calculation method and the second calculation method, and a test value storage for storing a plurality of time-sequentially associating the extracted first test value and second test value means The first determination for determining the validity of the first inspection value based on the determination result of whether or not the expected value data matching the extracted first inspection value is stored in the expected value data storage means And whether the second test value extracted this time satisfies a correlation condition determined in advance corresponding to the current synchronization method based on the plurality of second test values stored in the test value storage means A second determination unit for determining whether or not, and a subsequent step of generating authentication result data indicating whether or not authentication of the main control unit is established based on the determination results of the first determination unit and the second determination unit In the synchronization method, when it is determined that the authentication result data generation unit, the subsequent-stage transmission unit that transmits the generated subsequent-stage authentication result data to the peripheral unit, and the second determination unit satisfies the correlation condition, The first inspection And a determination unit for determining the synchronization method corresponding to the expected value data and determining the next synchronization method of the second determination unit, and the first unit received from the main control unit Transfer means for transferring the authentication data and the second authentication data to the subsequent stage, a peripheral side receiving means for receiving the subsequent authentication result data from the subsequent stage, and according to the received subsequent authentication result data And a peripheral section including a processing means for performing a predetermined process.

  According to the peripheral board of the present invention described in claim 10, the peripheral part transfers the first authentication data and the second authentication data received from the main control part to the subsequent stage part. Then, the subsequent stage extracts the first inspection value and the second inspection value from the first authentication data and the second authentication data received from the peripheral portion based on the first calculation method and the second calculation method. The subsequent stage compares the first inspection value with a predetermined expected value to determine the validity of the first inspection value, and the second inspection value is determined based on the correlation condition of the current synchronization method. Is generated, and subsequent-stage authentication result data indicating whether or not authentication of the main control unit is established is generated based on the determination results and transmitted to the subsequent-stage unit. If it is determined that the synchronization check value satisfies the correlation condition, the subsequent stage unit specifies the synchronization method corresponding to the expected value data that matches the first check value in the current synchronization method, and determines the next synchronization method. be able to. On the other hand, the peripheral part can perform a predetermined process in the gaming machine according to the subsequent authentication result data received from the subsequent part.

  An authentication method for a gaming machine according to an eleventh aspect of the present invention includes a main control unit that transmits a control command, a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit, and the main control unit In a gaming machine authentication method comprising: a latter stage unit that performs authentication of the control unit, the main control unit is configured to communicate with the latter stage unit in the current synchronization method selected from the plurality of types of synchronization methods. A synchronization check value generation step for generating a synchronization check value for confirming continuity, and a next synchronization method selection step for selecting a next synchronization method to be used next to the current synchronization method from among the plurality of types of synchronization methods The individual authentication value associated with the selected next synchronization method is associated with each of a plurality of different synchronization methods used in communication with the subsequent unit, and the main control unit Individual authentication An individual authentication value extracting step for extracting from the individual authentication value storage means for storing a plurality of types of individual authentication values, and a first inspection for generating a first inspection value for inspecting the extracted individual authentication values by a first authentication method A value generation step, a second inspection value generation step of generating a second inspection value for inspecting the generated synchronous inspection value by a second authentication method, and either the first inspection value or the second inspection value. A first authentication data generating step of generating a first authentication data by calculating an inspection value by a predetermined first calculation method; and the first inspection value or the second inspection different from the one inspection value A second authentication data generating step of generating the second authentication data by calculating the other inspection value of the value and all or part of the one inspection value by a predetermined second operation method; The first authentication data and the second authentication data that have been sent A main control-side transmission step for transmitting via the peripheral portion, and the latter-stage portion receiving the first authentication data and the second authentication data transferred from the peripheral portion. And an inspection value extracting step of extracting the first inspection value and the second inspection value from the received first authentication data and second authentication data based on the first operation method and the second operation method; The extracted first test is stored in 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 each of the plurality of types of synchronization methods being associated one-to-one. A first determination step of determining the validity of the first inspection value based on a determination result of whether or not the expected value data matching the value is stored; and the extracted first inspection value and second inspection Correlate values in time series Based on a plurality of second test values stored in the stored test value storage means, it is determined whether or not the second test value extracted this time satisfies a predetermined correlation condition corresponding to the current synchronization method. 2 determination step, and a subsequent authentication result data generation step for generating subsequent authentication result data indicating whether or not authentication of the main control unit is established based on the determination results of the first determination step and the second determination step. , When it is determined that the generated second-stage authentication result data is transmitted to the peripheral section and the second determination process satisfies the correlation condition, Determining the synchronization method corresponding to the matched expected value data to determine the next synchronization method of the second determination means, and the peripheral unit receives the first received from the main control unit 1 Authentication data And a transfer step for transferring the second authentication data to the subsequent-stage unit, a peripheral-side reception step for receiving the subsequent-stage authentication result data from the subsequent-stage unit, and the predetermined processing according to the received subsequent-stage authentication result data And a processing step for performing the above.

  According to the gaming machine authentication method of the present invention described in claim 11, the main control unit generates a synchronization check value by the current synchronization method and selects the next synchronization method from a plurality of types of synchronization methods. Then, the individual authentication value corresponding to the next synchronization method is extracted from the individual authentication value storage means. The main control unit generates a first inspection value for inspecting the individual authentication value by the first authentication method, and generates a second inspection value for inspecting the synchronous inspection value by the second operation 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 transmits the first authentication data and the second authentication data to the subsequent unit. On the other hand, the peripheral unit transfers the first authentication data and the second authentication data received from the main control unit to the subsequent unit. Then, the subsequent stage extracts the first inspection value and the second inspection value from the first authentication data and the second authentication data received from the peripheral portion based on the first calculation method and the second calculation method. The subsequent stage compares the first inspection value with a predetermined expected value to determine the validity of the first inspection value, and the second inspection value is determined based on the correlation condition of the current synchronization method. Is generated, and subsequent-stage authentication result data indicating whether or not authentication of the main control unit is established is generated based on the determination results and transmitted to the subsequent-stage unit. If it is determined that the synchronization check value satisfies the correlation condition, the subsequent stage unit specifies the synchronization method corresponding to the expected value data that matches the first check value in the current synchronization method, and determines the next synchronization method. be able to. On the other hand, the peripheral part can perform a predetermined process in the gaming machine according to the subsequent authentication result data received from the subsequent part.

  An authentication program for a gaming machine according to a twelfth aspect of the present invention includes a main control unit that transmits a control command, a peripheral unit that performs a predetermined process based on the control command transmitted by the main control unit, and the main control unit An authentication program for a gaming machine comprising a subsequent stage for performing authentication of the control unit, wherein the first computer of the main control unit is selected from the plurality of types of synchronization methods, and the A synchronization check value generation means for generating a synchronization check value for confirming continuity of communication with the subsequent stage, and a next synchronization method to be used next to the current synchronization method is selected from the plurality of types of synchronization methods The next-time synchronization method selection means and the individual authentication value associated with the selected next-time synchronization method are associated one-to-one with each of a plurality of different synchronization methods used in communication with the subsequent stage unit. An individual authentication value extracting means for extracting from the individual authentication value storage means for storing a plurality of types of individual authentication values for individual authentication of the main control section, and a first inspection value for inspecting the extracted individual authentication values. A first test value generating means for generating the first check value, a second check value generating means for generating a second check value for checking the generated synchronous check value by the second authentication method, and the first check value or the The first authentication data generating means for generating the first authentication data by calculating any one of the second inspection values using a predetermined first calculation method, which is different from the one inspection value A second authentication value is generated by calculating the second inspection value of the first inspection value or the second inspection value and all or a part of the one inspection value by a predetermined second calculation method. Authentication data generating means, the generated first authentication data and The second authentication data is made to function as a main control side transmission step for transmitting the second authentication data to the latter part via the peripheral part, and the third authentication computer transferred from the peripheral part and the third computer of the latter part, Subsequent receiving means for receiving the second authentication data, the first inspection value and the second inspection value from the received first authentication data and second authentication data, the first calculation method and the first A plurality of test value extraction means for extracting based on two calculation methods, and 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 synchronization methods one-to-one. First determination means for determining the validity of the first inspection value based on the determination result of whether or not the expected value data that matches the extracted first inspection value is stored in the expected value data storage means And the extraction The second test value extracted this time corresponds to the current synchronization method based on the plurality of second test values in the test value storage means for storing the first test value and the second test value in association with each other in time series Second determination means for determining whether or not a predetermined correlation condition is satisfied, and whether authentication of the main control unit is established based on the determination results of the first determination means and the second determination means Post-authentication result data generating means for generating post-authentication result data indicating whether or not, post-stage transmission result means for transmitting the generated post-authentication result data to the peripheral portion, and the second determination means satisfy the correlation condition A determination unit that identifies the synchronization method corresponding to the expected value data that matches the first inspection value in the synchronization method and determines the next synchronization method as the second determination unit when it is determined that Function and before The peripheral second computer receives the first authentication data and the second authentication data received from the main control unit to the subsequent unit, and receives the subsequent authentication result data from the subsequent unit. An authentication program for a gaming machine for functioning as peripheral side receiving means for performing the predetermined processing in accordance with the received post-authentication result data.

  According to the gaming machine authentication program of the present invention described in claim 12, the first computer of the main control unit generates a synchronization check value by the current synchronization method, and selects the next time from a plurality of types of synchronization methods. A synchronization method is selected, and an individual authentication value corresponding to the next synchronization method is extracted from the individual authentication value storage means. The first computer generates a first inspection value for inspecting the individual authentication value by the first authentication method, and generates a second inspection value for inspecting the synchronous inspection value by the second operation 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. Then, the first computer transmits the first authentication data and the second authentication data to the subsequent stage. On the other hand, the peripheral second computer transfers the first authentication data and the second authentication data received from the main control unit to the subsequent stage. Then, the third computer at the rear stage extracts the first inspection value and the second inspection value from the first authentication data and the second authentication data received from the peripheral portion based on the first calculation method and the second calculation method. To do. The third computer compares the first test value with a predetermined expected value to determine whether the first test value is valid, and the second test value is correlated with the current synchronization method. It is determined whether or not the condition is satisfied, and subsequent-stage authentication result data indicating whether or not authentication of the main control unit is established is generated based on the determination results and transmitted to the subsequent-stage unit. If the third computer determines that the synchronization check value satisfies the correlation condition, the third computer identifies the synchronization method corresponding to the expected value data that matches the first check value in the current synchronization method, and determines the next synchronization method. can do. On the other hand, the second computer in the peripheral part can perform a predetermined process in the gaming machine according to the latter authentication result data received from the latter part.

  As described above, according to the present invention, the first authentication data is obtained by using either one of the first test value that the main control side checks the individual authentication value and the second test value that checks the synchronous test value. Since 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 subsequent stage, the first authentication data and the second Since it is difficult for an unauthorized analyst to analyze the generation method of authentication data, 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 subsequent stage Can be prevented. In addition, since the synchronization check value is a value generated by switching a plurality of types of synchronization methods, even if it is intercepted by an unauthorized analyst even though it is a value indicating communication continuity, It can prevent becoming a clue to analyze processing contents. On the other hand, the latter part can perform individual authentication on the main control side from the first inspection value generated by two different authentication methods, and determine the continuity of communication from the second inspection value and the current synchronization method. Therefore, it is possible to detect in the subsequent stage that the data is illegally used by an unauthorized analyst. Furthermore, since the latter part performs authentication processing for the main control side and transmits the subsequent authentication result to the peripheral part, the peripheral part only needs to refer to the latter 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 on the peripheral side, so that both improvement in security and improvement in 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 latter part determines whether or not the difference between a plurality of consecutive second test values received from the main control side in the current synchronization method satisfies the correlation condition, communication can be performed with simple processing. Since continuity can be confirmed, it is possible to prevent adverse effects on peripheral processing.

  Further, a plurality of different synchronization check values are used in the present synchronization method, and the next synchronization is performed with the first check value in a predetermined order from among a plurality of first check values corresponding to each of the plurality of synchronization check values. Since the method is assigned and the subsequent stage determines the next synchronization method based on the first inspection value, unless the order of the first inspection value used to determine the next synchronization method can be analyzed, an unauthorized analyst Cannot analyze the switching timing of the synchronization method. In addition, by switching the predetermined order of the first inspection values between the main control side and the subsequent stage, it becomes more difficult for an unauthorized analyst to analyze the order, and the unauthorized analyst uses data illegally. It can contribute to prevention of being done.

  Further, the first authentication data is generated by combining one of the inspection values and the additional data, and transmitted to the subsequent stage via the peripheral portion, thereby further complicating the method for generating the first and second authentication data. Therefore, unauthorized use of data transmitted from the main control side to the peripheral part and the subsequent stage part can be prevented more reliably.

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

  Further, since the first and second authentication data can be encrypted and transmitted from the main control side to the subsequent stage through the peripheral portion, it becomes even more difficult for the fraud analyst to analyze the first and second authentication data. Therefore, unauthorized use of data transmitted from the main control side to the peripheral part and the subsequent stage part can be prevented.

  Further, the first and second authentication data are generated by 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, unauthorized analysis by an unauthorized analyst becomes even more difficult, and the main control side It is possible to make unauthorized use of data transmitted to the part and the subsequent part 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 a back | latter stage 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 1st authentication process area of the example of an authentication process procedure using the data for authentication. It is a flowchart which shows the 2nd authentication process area of the example of an authentication process procedure using the data for authentication. It is a figure which shows an example of matching with an individual authentication value, an expected value, and a synchronous system. It is a figure for demonstrating the example 1 of a relationship between an individual authentication value and a synchronous system. It is a figure for demonstrating the example 2 of a relationship between an individual authentication value and a synchronous 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 a back | latter stage part. It is a flowchart which shows the reception procedure 2 'of the control signal by a back | latter stage part. It is a flowchart which shows. 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 that 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 slot 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 effect control unit 202A, a rear stage 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 production control unit 202A and the rear stage unit 202B are integrally provided on the peripheral board. The main control unit 201 is configured to be able to transmit to the effect control unit 202A and the prize ball control unit 203. Bidirectional communication is possible between the effect control unit 202A and the rear stage unit 202B. That is, the rear stage section 202B is configured to receive data from the main control section 201 via the effect control section 202A.

  The main control unit 201 controls basic operations related to the game of the pachinko gaming machine 100. The effect control unit 202A transfers (transmits) the data received from the main control unit 201 to the subsequent stage unit 202B. The rear stage unit 202B authenticates the main control unit 201 based on the data transferred from the production control unit 202A, transmits the authentication result to the production control unit 202A, and the production control unit 202A performs the production during the game. Control the behavior. 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 202A 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 effect control unit 202A receives control signals including various control commands from the main control unit 201, and executes program data stored in the ROM 242 based on these commands to perform effect control during the game. The effect control unit 202 </ b> A 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 main control unit 201 and the rear stage unit 202B, and transmits various data to the rear stage unit 202B, the lamp control unit 251, and the audio control unit 252. The production control unit 202A is realized by the same peripheral board together with the rear stage unit 202B. In addition, the symbol display unit (LCD) 104, the lamp control unit 251, and the audio control unit 252 described above are electrically connected to the output side of the effect control unit 202A 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 rear stage unit 202 </ b> B includes a CPU 21, a ROM 22, a RAM 23, and an interface (I / F) 24. The CPU 21 performs processing associated with the authentication of the main control unit 201 based on the program data stored in the ROM 22. The ROM 22 has a storage area for storing the program data and the like. The RAM 23 functions as a data work area when the CPU 21 performs arithmetic processing. The I / F 24 receives various data from the main control unit 201 via the effect control unit 202A (peripheral part), and transmits various data to the effect control unit 202A.

  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 game ball 103 is intermittently fired by driving a solenoid or the like in response to the detected game operation, and the game area 103 of the game board 101 is played. A game ball is sent out.

  The main control unit 201, the effect control unit 202A, the rear stage unit 202B, and the prize ball control unit 203 configured as described above are provided on different printed boards (main control board, effect board, prize ball board). 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 production control unit 202A and the rear stage unit 202B. Different configurations can be used. In addition, the production control unit 202A and the rear stage unit 202B are configured so that one printed circuit board is mounted on the other printed circuit board instead of the structure realized by the same printed circuit board, and a separate printed circuit board is electrically connected by a cable or the like. Various embodiments such as a configuration to be connected can be used.

(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 part that transmits a control command for operating the peripheral board 330, and includes a data storage unit 311, a synchronous inspection value generation unit 312, a next synchronization method selection unit 313, an individual authentication value extraction unit 314, A first inspection value generation unit 315, a second inspection value generation unit 316, a first authentication data generation unit 317, a second authentication data generation unit 318, an encryption processing unit 319, and a main control side transmission unit 320 are provided. It is composed. The main control board 310 is formed of a board different from the peripheral board 330 and is electrically connected so as to be communicable with the peripheral part (effect control part) 202A of the peripheral board 330.

  The data storage unit 311 corresponds to the individual authentication value storage means of the present invention, and includes a plurality of types of individual authentication values, a plurality of synchronous inspection values described later, a first inspection value, a second inspection value, first authentication data, 2 Various data such as authentication data are stored. As the data storage unit 311, for example, a part of the ROM 212 and the RAM 213 (see FIG. 2) of the main control unit 201 can be used.

  The plurality of types of individual authentication values are associated with each of a plurality of different types of synchronization methods used for communication with the peripheral board 330. For example, when two types of synchronization methods Pa and Pb are used, two different individual authentication values Ca and Cb are associated with each other and stored in the data storage unit 311. An example of the individual authentication value includes a value for performing individual authentication of the main control board 310 such as a predetermined authentication code, identification code, and identification command.

  The synchronization check value generation unit 312 corresponds to the synchronization check value generation means of the present invention, and confirms the continuity of communication with the peripheral board 330 by the current synchronization method selected from a plurality of types of synchronization methods. Generate a synchronization check value. The synchronization check value generation unit 312 stores the generated synchronization check value in the data storage unit 311 in time series. Each of the plurality of types of synchronization methods defines a difference between, for example, continuous synchronization check values or synchronization check values at a predetermined interval. In the present embodiment, in order to simplify the description, a case will be described in which a difference between synchronization check values in which each synchronization method is continuous is defined. Further, the difference defined by the synchronization method may define a predetermined correlation. An example of the predetermined correlation includes defining a change pattern of a plurality of continuous synchronous check values.

  Here, in the synchronization method Pa, the difference between the current and previous two synchronization check values is “+2” as a correlation condition, and in the synchronization method Pb, the difference between the current and previous two synchronization check values is “−5” as a correlation condition. An example of generating a synchronous check value in the case of

  When the current synchronization method is the synchronization method Pa, the synchronization check value generation unit 312 acquires the previous synchronization check value from the data storage unit 311 and the difference from the previous synchronization check value becomes “+2”. A synchronization check value is generated, and the current synchronization check value is stored in the data storage unit 311 in time series. Also, when the current synchronization method is the synchronization method Pb, the synchronization check value generation unit 312 acquires the previous synchronization check value from the data storage unit 311 and the difference from the previous synchronization check value is “−5”. The current synchronization check value is generated, and the current synchronization check value is stored in the data storage unit 311 in time series.

  In addition, as another example of the correlation condition of the synchronization method, the difference between the current and previous synchronization check values, the change pattern of the current and previous and previous synchronization check values, and the difference or change between a plurality of synchronization check values received a predetermined number of times A pattern or the like can be used as a correlation condition.

  The next synchronization method selection unit 313 corresponds to the next synchronization method selection means of the present invention, selects the next synchronization method to be used next to the current synchronization method from the above-described plurality of synchronization methods, and selects the result of the selection. Next-time synchronization method data shown is stored in the data storage unit 311 or the like. The next-time synchronization method selection unit 313 switches between a plurality of types of synchronization methods at a predetermined switching timing, irregular timing, or the like at random or in a predetermined selection method.

  The individual authentication value extraction unit 314 corresponds to the individual authentication value extraction unit of the present invention, and extracts the individual authentication value associated with the next authentication method selected by the next synchronization method selection unit 313 from the data storage unit 311. For example, the individual authentication value extraction unit 314 extracts the individual authentication value Ca associated with the synchronization method Pa from the data storage unit 311 when the above-described synchronization method Pa is selected as the next synchronization method. 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 first inspection value generation unit 315 corresponds to the first inspection value generation unit of the present invention, and generates a first inspection value for inspecting the individual authentication value extracted by the individual authentication value extraction unit 314 by the first authentication method. Store in the data storage unit 311. 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. In addition, when the individual authentication value extraction unit 314 has not extracted the individual authentication value, the first inspection value generation unit 315 first inspects the individual authentication value or any individual authentication value extracted so far. A value is generated by the first authentication method and stored in the data storage unit 311.

  The second inspection value generation unit 316 corresponds to the second inspection value generation unit of the present invention, and generates a second inspection value for inspecting the synchronous inspection value generated by the synchronous inspection value generation unit 312 using the second authentication method. Store in the data 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 synchronous inspection value by the second authentication method, the fraud 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 317 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 317 generates the first authentication data by performing the calculation indicated by the first calculation method on one of the inspection values, and the first authentication data is generated on the peripheral board 330. By transmitting, one inspection value is prevented from being transmitted as it is to the peripheral substrate 330. 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 318 corresponds to the second authentication data generation means 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 318 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 substrate 330. This prevents the other inspection value from being transmitted as it is to the peripheral substrate 330. 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 319 encrypts the first authentication data and the second authentication data with the peripheral board 330 by a predetermined encryption method. When encryption is not required between the main control board 310 and the peripheral board 330, the encryption processing unit 319 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 transmitting unit 320 to the peripheral substrate 330 as it is.

  The main control side transmission unit 320 corresponds to the main control side transmission unit of the present invention, and the first authentication data generated by the first authentication data generation unit 317 and the second authentication data generated by the second authentication data generation unit 318. The authentication data is transmitted to the peripheral portion 202A of the peripheral substrate 330. Then, the main control side transmission unit 320 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 330, for example, for the first and second authentication. Data is transmitted to the peripheral portion 202A of the peripheral substrate 330.

  The pachinko gaming machine 100 of the present invention has, as two authentication factors, a first inspection value for authenticating the validity of the main control unit 201 and a second for authenticating the continuity of communication with the main control unit 201. Inspection value 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.

  Next, a functional configuration of the peripheral board 330 having a function as a peripheral part such as the above-described effect control unit 202A will be described. As shown in FIG. 3, the peripheral board 330 includes a peripheral part (effect control part) 202A and a rear stage part 202B. And the peripheral board | substrate 330 is comprised so that bidirectional | two-way communication is possible between the peripheral part (effect control part) 202A and the back | latter stage part 202B. In the present embodiment, the case where the peripheral board 330 having the production control section 202A and the rear stage section 202B is described will be described. You can also

  Next, the post-stage unit 202B includes a post-stage side reception unit 331, a post-stage side storage unit 332, a decoding processing unit 333, a test value extraction unit 334, a first determination unit 335, a second determination unit 336, and a post-stage authentication result data generation unit. 337, and a rear transmission unit 338.

  The post-stage receiving unit 331 corresponds to the post-stage receiving unit of the present invention, and receives the first and second authentication data transmitted from the peripheral unit 202A and transmitted from the main control board 310 to the peripheral unit 202A. The rear-stage receiving unit 331 of the present embodiment receives the first and second authentication data from the main control board 310 via the peripheral unit 202A, for example, by receiving a control signal to which the first and second authentication data are added. Receive.

  The rear stage storage unit 332 corresponds to the expected value data storage unit and the inspection value storage unit of the present invention. The rear stage storage unit 332 stores a first expected value corresponding to the first inspection value to be received from the main control board 310 described above. That is, the rear-stage storage unit 332 stores in advance, as the first expected value, the first inspection value generated by the regular main control board 310 based on the individual authentication value, and the first expected value and the first inspection value are stored. Can be determined as having received the regular first inspection value. Further, if the first expected value and the first inspection value do not match, it can be determined that an illegal first inspection value has been received.

  The rear-stage storage unit 332 stores the plurality of types of synchronization methods in a one-to-one correspondence with the plurality of first expected values corresponding to the individual authentication values described above. Specifically, the rear-stage storage unit 332 stores the first expected value and synchronization identification data for identifying the synchronization method in association with each other.

  The rear-stage storage unit 332 stores the first inspection value and the second inspection value received from the main control board 310 in association with each other in time series. That is, the post-stage storage unit 332 stores the individual authentication value received from the main control board 310 and the synchronization check value in association with each other. The rear-stage storage unit 332 stores at least the number of first and second test values required for the determination of the synchronization method.

  The decryption processing unit 333 is a decryption method corresponding to the encryption method used in the encryption processing unit 319 of the main control board 310 described above, and the first and second received from the main control board 310 by the subsequent-stage receiving unit 331. Decrypt authentication data. When encryption is not required between the main control board 310 and the peripheral board 330, the decryption processing unit 333 is deleted from the configuration of the peripheral board 330, and the post-stage receiving unit 331, the inspection value extraction unit 334, Connect directly.

  The inspection value extraction unit 334 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 rear receiving unit 331. Extraction is performed based on the calculation method and the second calculation method. Specifically, the inspection value extraction unit 334 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 first determination unit 335 corresponds to the first determination unit of the present invention, and the first expected value of the rear-stage storage unit 332 determined in advance corresponding to the first inspection value and the extracted first inspection value are By comparing whether or not they match, the validity of the individual authentication value of the main control board 310 as the first inspection value is determined. The first determination unit 335 stores the determination result in the RAM 243 or the like.

  The second determination unit 336 corresponds to the second determination unit of the present invention, and based on a plurality of second inspection values stored in the rear-stage storage unit 332, the synchronous inspection value that is the second inspection value extracted this time Determines whether or not a predetermined correlation condition corresponding to the current synchronization method is satisfied. For example, if the synchronization condition correlation condition is a difference between preceding and following synchronization check values, the second determination unit 336 calculates a difference between the current synchronization check value and the previous synchronization check value, and the difference is determined in advance. The continuity of communication with the main control board 310 is determined based on the determination result of whether or not the determination value has been reached. As described above, the second determination unit 336 can determine the continuity of communication of the main control board 310 with a simple process because it only determines the difference between the plurality of synchronization check values. That is, when the correlation condition of the synchronization method is not satisfied, it can be determined that the synchronization check value has been illegally used.

  The latter authentication result data generation unit 337 corresponds to the latter authentication result data generation unit of the present invention, and authenticates the main control board 310 based on the determination results of the first determination unit 335 and the second determination unit 336. The post-authentication result data generation unit 337 establishes authentication of the main control board 310 when both the first determination unit 335 and the second determination unit 336 determine that both are valid, and either one is valid. If it is determined that it is not, authentication is not established. The post-authentication result data generation unit 337 generates post-authentication result data indicating whether or not authentication of the main control board 310 (main control unit) has been established. That is, the latter-stage authentication result data indicates an authentication result indicating whether or not the latter-stage unit 202B has authenticated the main control unit 201. Further, in this embodiment, when authentication data is not added to the received control signal, “authentication not performed” is set in the subsequent authentication result data.

  The post-stage transmission unit 338 corresponds to the post-stage transmission unit of the present invention, and transmits the post-stage authentication result data generated by the post-stage authentication result data generation unit 337 to the peripheral unit 202A. Then, the post-stage transmission unit 338 transmits the post-stage authentication result data to the peripheral section 202A, for example, by adding the post-stage authentication result data to the control signal transmitted to the peripheral section 202A.

  The determination unit 339 corresponds to the determination unit of the present invention. When the second determination unit 336 determines that the correlation condition is satisfied, the determination unit 339 adds the expected value data that matches the first inspection value in the synchronization method. The corresponding synchronization method is identified and determined as the next synchronization method of the second determination unit 336. The determination unit 338 determines that the correlation condition of the current synchronization method is satisfied by the second determination unit 336, that is, when the current synchronization method ends, the determination unit 338 sets the individual authentication value that is the first test value. The associated synchronization method is determined as the next synchronization method. In this synchronization method, when a plurality of individual authentication values are received from the main control board 310, the individual authentication values received in a predetermined order are used, or they are associated with the last synchronization check value. An individual authentication value can be used.

  Next, the peripheral unit 202A includes a transfer unit 351, a peripheral side reception unit 352, and a processing unit 353.

  The transfer unit 351 corresponds to the transfer unit of the present invention, receives the first authentication data and the second authentication data from the main control board 310, and sends the received first authentication data and second authentication data to the subsequent stage. Transfer to the unit 202B. For example, when the transfer unit 351 of the present embodiment receives the control signal to which the first and second authentication data is added from the main control board 310, the transfer unit 351 transmits the control signal as it is to the subsequent stage 202B, thereby 2 The authentication data is transferred to the rear stage 202B.

  In the present embodiment, the case where the transfer unit 351 transfers the normal control signal 1010 and the control signal with authentication data 1020 received from the main control board 310 to the subsequent stage unit 202B has been described. The present invention is not limited to this. For example, the peripheral unit 202A transfers only the control signal with authentication data 1020 to the post-stage unit 202B, and does not transfer the normal control signal 1010, but controls the control signal 1010. An embodiment in which a predetermined process according to the command data 1001 is performed may be employed.

  The peripheral side receiving unit 352 corresponds to the peripheral side receiving means of the present invention, and receives the post-stage authentication result data and the like transmitted by the post-stage part 202B of the peripheral board 330. Then, the peripheral side receiving unit 352 of the present embodiment receives the post-authentication result data from the post-stage unit 202B, for example, by receiving an authentication result signal (described later) transmitted by the post-stage unit 202B.

  The processing unit 353 corresponds to the processing means of the present invention, and performs predetermined processing in the pachinko gaming machine 100 according to the subsequent authentication result data received from the subsequent unit 202B. The processing unit 353 performs the predetermined processing when the latter 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, data that is communicated between the peripheral unit 202A and the subsequent unit 202B is not encrypted. However, data that is communicated between the peripheral unit 202A and the subsequent unit 202B is also encrypted. It can also be configured.

  Further, in the present embodiment, the CPU 211 of the main control board 310 is the first computer in the claims, and the CPU 241 of the peripheral part (effect control unit) 202A of the peripheral board 330 is the second computer in the claims, the latter stage of the peripheral board 330. A case where the CPU 21 of the unit 202B functions as the third computer in the claims will be described. The ROM 212 of the main control board 310 includes a synchronous test value generation unit, a next synchronization method selection unit, an individual authentication value extraction unit, a first test value generation unit, A main control side authentication program for causing a test value generation unit, a first authentication data generation unit, a second authentication data generation unit, a main control side transmission unit, an encryption unit, and the like to function. I remember it. The ROM 242 of the peripheral portion 202A of the peripheral board 330 stores a peripheral side authentication program for causing the second computer to function as various means such as transfer means, peripheral side receiving means, and processing means. Yes. The ROM 22 of the rear stage portion 202B of the peripheral board 330 includes the third computer in the rear side receiving means, the decoding means, the inspection value extracting means, the first determining means, the second determining means, and the subsequent authentication result data. A post-authentication program for functioning as various means such as generation means, post-stage transmission means, and determination means is stored. That is, the authentication program of the present invention is constituted by the main control side authentication program, the peripheral side authentication program, and the subsequent stage 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 202 every time a game ball wins the start winning opening 105, and the effect control unit 202 displays the symbols on the symbol display unit 104 in a variable manner. Repeat to stop. The main control unit 201 outputs a corresponding control command to the effect control unit 202 when the occurrence of the jackpot is determined, and the effect control unit 202 aligns the predetermined symbols and stops the variable display, Control is performed to open the special winning opening 109. The effect control unit 202 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 202 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 202. 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 202 and the prize ball control unit 203, and the process proceeds to step S403. When the power-on command is transmitted by this process, the effect control unit 202 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 202, 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), it transmits a jackpot reach command (symbol variation command) to the effect control unit 202 in step S413. In step S414, the main control unit 201 determines whether or not 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, if 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 202, and the process proceeds to step S416.

  In step S416, the main control unit 201 transmits a jackpot start command to the effect control unit 202. 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 202. To do. When the transmission of the jackpot command for all rounds is completed, the main control unit 201 transmits the jackpot end command to the effect control unit 202 in step S418, and proceeds to the process of 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 an outlier reach command (design variation command) to the effect control unit 202, and in step S420. 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 202, and the process proceeds to 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 202, and ends the process according to this flowchart.

  Next, 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 202 in the pachinko gaming machine 100 is shown in FIG. 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, description will be given of a process when the symbol changes (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.

  First, the symbol variation process by the effect control unit 202 will be described with reference to the flowchart shown in FIG. The effect control unit 202 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 202 repeats this determination process to wait for the symbol variation command to be received. On the other hand, when it is determined that the symbol variation command has been received (S701: Yes), the effect control unit 202 acquires a random effect selection random number in step S702, and in step S703, based on the acquired random number, The type is selected, and the process proceeds to step S704. In step S704, the effect control unit 202 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 202 determines whether the effect time has elapsed. If the effect control unit 202 determines that the effect time has elapsed (S705: Yes), the effect control unit 202 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 202 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 production | presentation control part 202 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 it determines with the production | presentation control part 202 having received the symbol stop command (S706: Yes), in step S707, the production | generation stop command is transmitted with respect to the lamp | ramp control part 251 and the audio | voice control part 252, and this flowchart. The process ends.

  Next, the big hitting process by the effect control unit 202 will be described with reference to the flowchart shown in FIG. The effect control unit 202 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 202 repeats this determination process to wait for reception of the jackpot start command. On the other hand, when determining that the jackpot start command has been received (S801: Yes), the effect control unit 202 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 202 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 202 repeats this determination process to wait for reception of the jackpot command. On the other hand, when determining that the jackpot command has been received (S803: Yes), the effect control unit 202 rounds corresponding to the round jackpot commands received by the lamp control unit 251 and 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 202 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 202 repeats this determination process to wait for reception of the jackpot end command. On the other hand, if it is determined that the jackpot end command has been received (S805: Yes), the effect control unit 202 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 202 (during symbol variation) will be described. Then, the lamp control unit 251 determines whether or not an effect start command has been received from the effect control unit 202 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 S <b> 906, the lamp control unit 251 determines whether an effect stop command has been received from the effect control unit 202. 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 to the peripheral part (effect control part) 202A by the main control part 201, and an authentication result signal output from the rear part 202B to the peripheral part (effect control part) 202A 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. Note that the authentication data 1003 is one of the first authentication data and the second authentication data of the present invention described above, and includes three data of the control command data 1001, the accompanying data 1002, and the authentication data 1003. It can also be a configured control signal. Further, the authentication data 1003 may be the first authentication data or the second authentication data, and may be a control signal composed of four data of the control command data 1001, the accompanying data 1002, the authentication data 1003, and dummy data. it can.

(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 the individual authentication value (for example, checksum) of the main control unit 201 at the rear stage part 202B of the peripheral board 330, and is generated by calculation using the first authentication method described above. ing. The second inspection value B is an inspection value for inspecting the synchronous inspection value of the main control unit 201 at a subsequent stage, and is generated by calculation using the second authentication method described above. 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 rear stage part 202B of the peripheral board 330 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 main control unit 201 are received. The first inspection value A and the second inspection value B can be extracted by inversely calculating the first authentication data V1 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 in advance between the main control unit 201 and the subsequent stage unit 202B.

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 (Expression 1), the first authentication data V1c = H1c (A, C), and in the case of (Expression 2), the second authentication data V2d = H2d (B, A), (Expression 1) ) ′ Is defined as first authentication data V1d = H1d (B, C), and (Expression 2) ′ is defined as second authentication data V2c = H2c (A, B).

(Specific example 1 of authentication method)
Subsequently, a specific example in which authentication is performed by generating the first and second authentication data V1c and V2d 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 a count 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 V2d = 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 V2d (0x81) −first inspection value (0x80) = 0x01

An example in which the authenticator performs the first authentication When the first expected value a of the first inspection value A is 0x80 and the correlation condition of the second inspection value B is “+2” in the rear stage 202B, the extracted first When the first inspection value A ′ and the first expected value a match at 0x80d and the second inspection value B ′ has increased by +2 from the previous time, the rear stage unit 202B determines that the authentication of the main control unit 201 is established. . Further, when either one of the extracted first inspection value A ′ and second inspection value B ′ is not valid, the rear stage unit 202B 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 V2d = second inspection value (0x03) + first inspection value (0x80) = 0x83

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 V2d (0x83) −first inspection value (0x80) = 0x03

An example in which the authenticator performs the second authentication When the first expected value a of the first inspection value A is stored as 0x80 and the previous value of the second inspection value B is stored as 0x01 in the rear stage 202B, the authentication is performed. When the first inspection value A ′ and the first expected value a match at 0x80, and the value obtained by subtracting the previous value from the second inspection value B ′ is 0x02 and increases by +2 from the previous time, the rear stage unit 202B Assume that authentication of the main control unit 201 is established. Further, when either one of the extracted first inspection value A ′ and second inspection value B ′ is not valid, the rear stage unit 202B 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 V2d = second inspection value (0x03) + first inspection value (0x80) = 0x83

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 V2d (0x83) −first inspection value (0x80) = 0x03

An example in which the authenticator performs the second authentication When the first expected value a of the first inspection value A is stored as 0x80 and the previous value of the second inspection value B is stored as 0x01 in the rear stage 202B, the authentication is performed. When the first inspection value A ′ and the first expected value a match at 0x80, and the value obtained by subtracting the previous value from the second inspection value B ′ is 0x02 and increases by +2 from the previous time, the rear stage unit 202B Assume that authentication of the main control unit 201 is established. Further, when either one of the extracted first inspection value A ′ and second inspection value B ′ is not valid, the rear stage unit 202B 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 authentication result signal 1030 includes the control command data 1001 and accompanying data 1002 described above, and the subsequent authentication result data 1004 described above. The authentication result signal 1030 is the authentication result of the main control unit 201 based on the authentication data 1003 when the post-stage unit 202B receives the above-described control signal with authentication data 1020 from the main control unit 201 via the peripheral unit 202A. It is generated by the rear stage unit 202B according to the processing. Then, the authentication result signal 1030 is transmitted from the rear stage section 202B to the peripheral section 202A on the peripheral board 330 instead of the control signal with authentication data 1020. That is, the control command data 1001 and the accompanying data 1002 of the authentication result signal 1030 are the same data as the control command data 1001 and the accompanying data 1002 of the control signal transferred from the peripheral part 202A, and the subsequent authentication result data 1004 is included in them. Added. In the subsequent authentication result data 1004, data indicating the authentication result of the main control board 310, data indicating that the authentication of the main control board 310 has not been performed, and the like are set. The latter-stage authentication result data 1004 is data indicating, for example, “authentication established”, “authentication not established”, “authentication not performed”, and 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 peripheral 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 process proceeds to step S1211. 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 a synchronization check value that satisfies the correlation condition of the current synchronization method and stores it in the data storage unit 311 in time series, and then proceeds to the processing of step S1203. As an example of the method for generating the synchronization check value, when the synchronization method targets the previous and subsequent synchronization check values, the synchronization check value is generated based on the previous synchronization check value and the correlation condition (for example, +2). In step S1203, the main control unit 201 selects the next synchronization method from a plurality of types of synchronization methods, stores it in the data storage unit 311 and the like, and then proceeds to the processing in step S1204.

  In step S1204, the main control unit 201 extracts an individual authentication value associated with the selected next synchronization method from a plurality of types of individual authentication values stored in the data storage unit 311 and the RAM 213 or the like. Then, the process proceeds to step S1205. In step S1205, the main control unit 201 generates a first inspection value A of the first authentication method from the extracted individual authentication value of the main control unit 201 and stores it in the RAM 213 or the like. In step S1206, the generation is performed. The second inspection value B of the second authentication method is generated from the synchronized inspection value and stored in the RAM 213 and the like, and then the process proceeds to step S1207.

  In step S <b> 1207, the main control unit 201 calculates the first inspection value A and the additional data C by the above-described (Expression 1) which is the first calculation method to obtain the first authentication data V <b> 1 c in the RAM 213 or the like. Then, the process proceeds to step S1208. In step S1208, 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 V2d. Are stored in the RAM 213 and the like, and then the process proceeds to step S1209.

  In step S1209, the main control unit 201 encrypts the generated first authentication data V1c and second authentication data V2d using a predetermined encryption method, and in step S1210, the first authentication data V1c and Based on the second authentication data V2d and the control command data 1001, a control signal with authentication data 1020 is generated and transmitted to the peripheral portion 202A of the peripheral substrate 330, and then the process proceeds to step S1211.

  In step S1211, 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 (S1211: 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 (S1211: 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 21 (third computer) of the rear stage unit 202B will be described with reference to the flowchart of FIG.

  In step S1301, the rear stage unit 202B determines whether a control signal is received from the main control unit 201 via the peripheral unit 202A. When determining that the control signal has not been received (S1301: No), the rear stage unit 202B waits for reception of the control signal by repeating this determination process. On the other hand, when it determines with the back | latter stage part 202B having received the control signal (S1301: Yes), it transfers to the process of step S1302.

  In step S1302, the rear stage unit 202B determines whether or not the authentication data 1003 is included in the received control signal. Then, if the post-stage unit 202B determines that the authentication data 1003 is not included (S1302: No), in step S1303, the post-stage authentication result data 1004 indicating that the main control board 310 has not been authenticated is generated and the RAM 23 And 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 subsequent stage unit 202B 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 V2d, 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. Based on V2d, the first calculation method, the second calculation method, and the additional data C, reverse calculation is performed, and the first check value A ′ and the second check value B ′ are used for the first authentication data V1c and the second authentication value. Extracted from the data V2d and stored in the RAM 23 or the like, and then the process proceeds to step S1305. In step S1305, the subsequent stage unit 202B associates the extracted first inspection value A ′ and the second inspection value B ′ and stores them in the subsequent stage storage unit 332 in time series, and then proceeds to the process of step S1306.

  In step S1306, the subsequent stage unit 202B determines whether the first test value A ′ is authenticated based on whether or not the extracted first test value A ′ matches the predetermined first expected value. Determine whether or not. When determining that the authentication is not established (S1306: No), the subsequent stage unit 202B proceeds to the process of step S1310. On the other hand, if it is determined that the authentication is established (S1306: Yes), that is, if the authentication of the first inspection value A ′ is established, the subsequent stage unit 202B proceeds to the process of step S1307.

  In step S1307, the subsequent stage unit 202B calculates a difference between the second inspection value B ′ extracted this time and the previous second inspection value B ′, and whether the difference satisfies a correlation condition of a predetermined synchronization method. Based on whether or not, it is determined whether or not authentication of the second inspection value B ′ is established. Then, if it is determined that the authentication is established (S1307: Yes), the post-stage unit 202B establishes authentication for the main control unit 201 in step S1308, generates post-stage authentication result data 1004 indicating the establishment of the authentication, and stores it in the RAM 233 or the like. Then, the process proceeds to step S1309. In step S1309, the rear stage unit 202B sets the synchronization method associated with the first test value A ′ (individual authentication value) associated with the second test value B ′ (synchronous test value) to the rear stage storage unit 332. Is specified based on a plurality of types of expected value data stored in the memory, and the specified synchronization method is determined as the next synchronization method used by the rear-stage unit 202B and stored in the rear-stage side storage unit 332 and the like, and then in step S1311 Proceed to processing.

  On the other hand, if it is determined in step S1307 that the second inspection value B ′ is not authenticated (S1307: No), the latter stage unit 202B determines that the authentication with respect to the main control unit 201 is not established in step S1310 and indicates that the authentication is not established. Authentication result data 1004 is generated and stored in the RAM 233 and the like, and then the process proceeds to step S1311.

  The post-stage unit 202B generates an authentication result signal 1030 by adding the generated post-stage 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 in step S1311. In step S1312, the generated authentication result signal 1030 is transmitted to the peripheral unit 202A, and then the process proceeds to step S1313.

  The post-stage unit 202B determines whether or not the pachinko gaming machine 100 is powered off in step S1313. If the peripheral portion determines that the power is not turned off (S1313: No), the processing returns to step S1301, and a series of processing is repeated. On the other hand, if it is determined that the power is turned off (S1313: Yes), the rear stage unit 202B ends the process according to this flowchart.

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

  In step S1401, the peripheral unit 202A determines whether or not a control signal has been received from the main control unit 201. If the peripheral unit 202A determines that a control signal has been received (S1401: Yes), in step S1402, the peripheral unit 202A transfers (transmits) the control signal received from the main control unit 201 to the subsequent stage unit 202B, and then step S1401. Return to and repeat the series of processing.

  On the other hand, when it is determined in step S1401 that the peripheral unit 202A has not received a control signal from the main control unit 201 (S1401: No), the process proceeds to step S1403. In step S1403, the peripheral unit 202A determines whether or not the authentication result signal 1030 has been received from the subsequent unit 202B. If the peripheral unit 202A determines that the authentication result signal 1030 has not been received (S1403: No), the peripheral unit 202A returns to step S1401 and repeats a series of processes. On the other hand, if the peripheral unit 202A determines that the authentication result signal 1030 has been received (S1403: Yes), the process proceeds to step S1404.

  In step S1404, the peripheral unit 202A determines whether the received authentication result signal 1030 includes a subsequent authentication result. Specifically, it is determined whether or not the subsequent authentication result data 1004 of the authentication result signal 1030 indicates that authentication has not been performed. If the peripheral unit 202A determines that the subsequent authentication result is not included (S1404: No), the authentication to the main control board 310 has not been performed, and thus the process proceeds to step S1406.

  On the other hand, if the peripheral unit 202A determines that the post-authentication result is included (S1404: Yes), authentication of the main control board 310 is performed, and therefore the post-authentication of the authentication result signal 1030 is performed in step S1405. It is determined whether or not the result data 1003 indicates that authentication has been established. If the peripheral unit 202A determines that the authentication has been established (S1405: Yes), the peripheral unit 202A is included in the authentication result signal 1030 in step S1406 because it is a control signal received from the regular main control unit 201. A predetermined process based on the control command data 1001 and the accompanying data 1002 is performed, and then the process proceeds to step S1407.

  In step S1407, the peripheral 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 (S1407: No), the peripheral unit 202A returns to the process of step S1401 and repeats a series of processes. On the other hand, when it is determined that the power source is turned off (S1407: Yes), the peripheral unit 202A ends the process according to this flowchart.

  On the other hand, if the peripheral unit 202A determines in step S1405 that the subsequent authentication result data 1003 does not indicate that authentication has been established, that is, authentication has not been established (S1405: No), in step S1408, the control command data 1001 and the accompanying data The data 1002 is discarded and a notification signal is output from the speaker 262 (see FIG. 2), for example, and the processing according to this flowchart ends.

(Example of authentication processing procedure using authentication data)
Next, an example of a procedure for performing the authentication process by switching the synchronization methods Pa and Pb with the solid authentication values Ca and Cb will be described with reference to FIGS.

  In FIG. 14, the main control board 310, which is the person to be authenticated, generates a synchronization check value SY1 with the current synchronization method Pa (S1501), selects and stores the synchronization method Pb as the next synchronization method (S1502), The individual authentication value Cb corresponding to the synchronization method Pb is extracted from the data storage unit 311 (S1503). The main control board 310 generates the first inspection value A1 of the normal CPU 211 from the solid authentication value Cb (S1504), and generates the second inspection value B1 of the normal CPU 211 from the generated synchronous inspection value SY1 (S1505). ). 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 peripheral board 330 (S1506). Then, the main control board 310 generates the first authentication data V2d1 = H2d (B1, A1) for the first time based on the second inspection value B1 and the first inspection value A1, and the peripheral portion 202A of the peripheral board 330. (S1507).

  Thus, in the example of the authentication processing procedure, 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 H2d, and the second authentication data. Represents V2dn, and n represents the number of authentications (n = 1, 2, 3,...).

  On the other hand, the peripheral part 202A of the peripheral board 330 transfers the first authentication data V1c1 received from the main control board 310 to the subsequent stage part 202B (S1511). Then, the peripheral unit 202A transfers the second authentication data V2d1 received from the main control board 310 to the subsequent unit 202B (S1512).

  On the other hand, the rear stage part 202B of the peripheral board 330 performs 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 via the peripheral part 202A. The 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 (S1521). Then, the rear stage unit 202B extracts the second inspection value B1 from the second authentication data V2d1 using the calculation method H2d and the first inspection value A1, and extracts the second inspection value B1 from the first and second inspection values. The authentication value Cb and the synchronization check value SY1 are acquired and stored in the subsequent-stage storage unit 332 in association with each other. The post-stage unit 202B calculates a difference between the synchronization check value SY1 and the previous synchronization check value SY0 (initial value), and based on the determination result whether the difference satisfies the correlation condition of the current synchronization method Pa. Authentication is performed (S1522). Then, the post-stage unit 202B generates post-stage authentication result data 1004 indicating the authentication result of the main control board 310, and transmits an authentication result signal 1030 having the post-stage authentication result data 1004 to the peripheral part 202A of the peripheral board 330 (S1523). ). Then, when the first authentication is established, the subsequent stage unit 202B determines the synchronization method Pb corresponding to the solid authentication value Cb for which the authentication is established in the current synchronization method Pa as the next synchronization method (S1524).

  On the other hand, the peripheral part 202A of the peripheral board 330 is configured to perform predetermined processing corresponding to the control command data 1001 and the accompanying data 1002 when the post-authentication result data 1004 received from the post-stage part 202B indicates that authentication has been established. (S1513).

  As described above, the peripheral board 330 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 (synchronous inspection value) in the rear stage 202B, The unit 202A performs a predetermined process according to the authentication result of the rear stage unit 202B. When the first authentication is established, the second and subsequent authentication processes are performed.

  Subsequently, in FIG. 15, the main control board 310 generates the synchronization check value SY2 by the current synchronization method Pb (S1531), selects and stores the synchronization method Pa as the next synchronization method (S1532), and the synchronization method The individual authentication value Ca corresponding to Pa is extracted from the data storage unit 311 (S1533). The main control board 310 generates the first inspection value A2 of the regular CPU 211 from the solid authentication value Ca (S1534), and generates the second inspection value B2 of the regular CPU 211 from the generated synchronous inspection value SY2 (S1535). ). The main control board 310 generates first 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 peripheral board 330 (S1536). Then, the main control board 310 generates the second authentication data V2d2 = H2d (B2, A2) for the second time based on the second inspection value B2 and the first inspection value A2 to generate the peripheral portion 202A of the peripheral board 330. (S1537).

  On the other hand, the peripheral part 202A of the peripheral board 330 transfers the first authentication data V1c2 received from the main control board 310 to the subsequent stage part 202B (S1541). Then, the peripheral portion 202A transfers the second authentication data V2d2 received from the main control board 310 to the subsequent stage portion 202B (S1542).

  On the other hand, the rear stage part 202B of the peripheral board 330 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 via the peripheral part 202A. The inspection value A2 is extracted, and it is determined whether or not the first inspection value A2 matches the predetermined first expected value, and authentication is performed (S1551). Then, the rear stage unit 202B extracts the second inspection value B2 from the second authentication data V2d2 using the calculation method H2d and the first inspection value A2, and extracts the second inspection value B2 from the first and second inspection values. The authentication value Ca and the synchronization check value SY2 are acquired and associated with each other and stored in the subsequent-stage storage unit 332. The post-stage unit 202B calculates the difference between the synchronization check value SY2 and the previous synchronization check value SY1, and performs authentication based on the determination result whether the difference satisfies the correlation condition of the current synchronization method Pb ( S1552). Then, the post-stage unit 202B generates post-stage authentication result data 1004 indicating the authentication result of the main control board 310, and transmits an authentication result signal 1030 having the post-stage authentication result data 1004 to the peripheral part 202A of the peripheral board 330 (S1553). ). Then, when the second authentication is established, the latter stage unit 202B determines the synchronization method Pa corresponding to the solid authentication value Ca that is authenticated in the current synchronization method Pa as the next synchronization method (S1554).

  On the other hand, the peripheral part 202A of the peripheral board 330 is configured to perform predetermined processing corresponding to the control command data 1001 and the accompanying data 1002 when the post-authentication result data 1004 received from the post-stage part 202B indicates that authentication has been established. (S1543).

  As described above, the peripheral board 330 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 (synchronous inspection value) by the rear stage unit 202B. The unit 202A performs a predetermined process according to the authentication result of the rear stage unit 202B. 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, the second authentication data V2dn includes the second inspection value (count value) Bn used for generating the first authentication data V1sn. In order to extract the first inspection value An from the data V2cn, it is necessary to extract and authenticate the second inspection value Bn, which makes it difficult for an unauthorized analyst to analyze and reuse the second authentication data V2cn. can do. Then, since the post-stage unit 202B performs this authentication process, the peripheral unit 202A only refers to the authentication result of the post-stage unit 202B without performing the authentication process, so that the processing load on the CPU 241 of the peripheral unit 202A can be reduced. .

(Example 1 of switching the synchronization method at the rear stage)
Next, an example 1 of the switching method of the synchronization methods Pa and Pb described above will be described. First, the main control unit 201 stores a correspondence relationship between each of the two synchronization methods Pa and Pb and the two individual authentication values Ca and Cb. On the other hand, as shown in FIG. 16, the rear stage unit 202B associates the individual authentication values Ca and Cb with the expected value data Da and Db, and associates the expected value data Da and Db with the synchronization methods Pa and Pb, respectively. Remember. The correlation conditions of the synchronization methods Ca and Cb are “+2” and “−5”, respectively. The initial synchronization check value SY0 is set to “5”, and the initial synchronization method is set to the synchronization method Pa.

  First, as illustrated in FIG. 17, when the subsequent stage unit 202B receives the individual authentication value Ca and the synchronization check value SY1 (value: 7) from the main control unit 201 in the first communication, the subsequent unit 202B changes the values and the communication order. The data are stored in time series in the subsequent storage unit 332 in association with each other. When the latter stage unit 202B detects that the expected value data Da that matches the current individual authentication value Ca is stored in the rear stage storage unit 332, the rear stage unit 202B determines that the current individual authentication value Ca is valid. The subsequent stage unit 202B subtracts the initial synchronization check value SY0 from the current synchronization check value SY1 to obtain a difference (+2), and determines whether the difference (+2) satisfies the correlation condition of the current synchronization method Pa. To do. If the subsequent stage unit 202B determines that the correlation condition is satisfied, the subsequent unit 202B specifies the synchronization method Pa corresponding to the individual authentication value Ca associated with the synchronization check value SY1, and sets the synchronization method Pa to the second determination unit 336 next time. The synchronization method is determined.

  Upon receiving the individual authentication value Cb and the synchronization check value SY2 (value: 9) from the main control unit 201 in the second communication, the latter stage unit 202B associates these values with the communication order and stores them in the latter stage storage unit 332. Memorize in series. When the post-stage unit 202B detects that the expected value data Db matching the current individual authentication value Cb is stored in the rear-stage storage unit 332, the post-stage unit 202B determines that the current individual authentication value Cb is valid. The subsequent stage unit 202B subtracts the previous synchronization check value SY1 from the current synchronization check value SY2 to obtain a difference (+2), and determines whether the difference (+2) satisfies the correlation condition of the current synchronization method Pa. To do. If it is determined that the correlation condition is satisfied, the subsequent stage unit 202B specifies the synchronization method Pb corresponding to the individual authentication value Cb associated with the synchronization check value SY2, and uses the synchronization method Pb for the next time of the second determination unit 336. The synchronization method is determined. That is, the current synchronization method Pa is switched to the synchronization method Pb next time.

  Upon receiving the individual authentication value Cb and the synchronization check value SY3 (value: 4) from the main control unit 201 in the third communication, the latter stage unit 202B associates these values with the communication order and stores them in the latter stage storage unit 332. Memorize in series. When the post-stage unit 202B detects that the expected value data Db matching the current individual authentication value Cb is stored in the rear-stage storage unit 332, the post-stage unit 202B determines that the current individual authentication value Cb is valid. The subsequent stage unit 202B subtracts the previous synchronization check value SY2 from the current synchronization check value SY3 to obtain a difference (−5), and whether or not the difference (−5) satisfies the correlation condition of the current synchronization method Pa. Determine. If it is determined that the correlation condition is satisfied, the rear stage unit 202B specifies the synchronization method Pb corresponding to the individual authentication value Cb associated with the synchronization check value SY3, and the synchronization method Pb is determined next time by the second determination unit 336. The synchronization method is determined.

  Upon receiving the individual authentication value Ca and the synchronization check value SY4 (value: −1) from the main control unit 201 in the fourth communication, the subsequent stage unit 202B associates these values with the communication order and stores them in the subsequent stage storage unit 332. Memorize in time series. When the latter stage unit 202B detects that the expected value data Da that matches the current individual authentication value Ca is stored in the rear stage storage unit 332, the rear stage unit 202B determines that the current individual authentication value Ca is valid. The subsequent stage unit 202B subtracts the previous synchronization check value SY3 from the current synchronization check value SY4 to obtain a difference (−5), and whether or not the difference (−5) satisfies the correlation condition of the current synchronization method Pb. Determine. If it is determined that the correlation condition is satisfied, the subsequent stage unit 202B specifies the synchronization method Pb corresponding to the individual authentication value Cb associated with the synchronization check value SY2, and uses the synchronization method Pb for the next time of the second determination unit 336. The synchronization method is determined. That is, the current synchronization method Pb is switched to the synchronization method Pa next time.

  The rear stage unit 202B repeats the series of processes described above for the fifth and subsequent communications. In this way, the main control unit 201 simply switches the individual authentication values Ca and Cb at an arbitrary timing, and the subsequent stage unit 202B detects the switching timing from the received individual authentication values Ca and Cb and switches the next synchronization method. Can do. Therefore, since it becomes difficult for an unauthorized analyst to detect the switching timing of the synchronization method, it is possible to prevent unauthorized use of data transmitted to the subsequent stage unit 202B.

(Example 2 of switching the synchronization method in the latter part)
Hereinafter, an example in which the synchronization methods Pa and Pb of the above-described switching example 1 are switched when a plurality of different synchronization check values are used in the synchronization method will be described.

  First, as illustrated in FIG. 18, when the rear stage unit 202B receives the individual authentication value Cb and the synchronization check value SY1 (value: 5) from the main control unit 201 in the first communication, those values and the communication order ( The first time) is associated and stored in the subsequent storage unit 332 in time series. Then, in the second communication, the latter stage unit 202B receives the individual authentication value Ca or the individual authentication value Cb and the synchronization check value SY2 (value: 7) from the main control unit 201, and those values and the communication order (second time) ) In association with each other and stored in the subsequent storage unit 332 in time series. That is, the latter stage unit 202B receives two first and second test values for each synchronization method Pa and stores them in association with each other. In this embodiment, the case where the individual authentication value Ca or the individual authentication value Cb is received as the second inspection value for the second time will be described. Instead of this, the embodiment for receiving dummy data or the second inspection is received. An embodiment in which no value is received may also be used.

  After receiving the second synchronization check value SY1b in the first synchronization method Pa, the rear stage unit 202B obtains the difference +2 obtained by subtracting the synchronization check value SY1a from the synchronization check value SY1b, and the correlation of the current synchronization method Pa. It is determined whether the condition is satisfied. If it is determined that the correlation condition is satisfied, the subsequent stage unit 202B sets the synchronization method Pb associated with the expected value data Db (see FIG. 15) that matches the individual authentication value Cb received in the first communication to the next time. It is determined as a synchronization method. Then, the rear stage unit 202B continues the process when the authentication of the main control unit 201 is established.

  Upon receiving the individual authentication value Ca and the synchronization check value SY3 (value: 2) from the main control unit 201 in the third communication, the latter stage unit 202B associates these values with the communication order (third time) and stores the latter stage side. The time is stored in the unit 332 in time series. Then, when receiving the individual authentication value Ca or the individual authentication value Cb and the synchronization check value SY4 (value: 7) from the main control unit 201 in the fourth communication, the latter stage unit 202B receives those values and the communication order (fourth time). ) In association with each other and stored in the subsequent storage unit 332 in time series.

  After receiving the second synchronization check value SY2b in the second synchronization method Pb, the subsequent stage unit 202B obtains a difference −5 obtained by subtracting the synchronization check value SY2a from the synchronization check value SY2b, and the current synchronization method Pb. It is determined whether or not the correlation condition is satisfied. When the latter stage unit 202B determines that the correlation condition is satisfied, the subsequent stage unit 202B sets the synchronization method Pa associated with the expected value data Da (see FIG. 15) that matches the individual authentication value Ca received in the first communication next time. It is determined as a synchronization method. Then, the rear stage unit 202B continues the process when the authentication of the main control unit 201 is established.

  According to the pachinko gaming machine 100 described above, the main control unit 201 checks one of the first test value A for testing the individual authentication values Ca and Cb and the second test value B for testing the synchronous test value SYn. When the first authentication data V1 is generated using the first authentication data V1, the second authentication data V2 is generated using all or a part of the one inspection value and the other inspection value, and is transmitted to the rear stage 202B. Therefore, since it is difficult for an unauthorized analyst to analyze the generation method of the first authentication data V1 and the second authentication data V2, the first inspection value A and the second inspection value B can be extracted. Therefore, unauthorized use of data transmitted from the main control unit 201 to the subsequent stage S02B can be prevented. Further, since the synchronization check value SYn is a value generated by switching a plurality of types of synchronization methods, even if the synchronization check value SYn is a value indicating communication continuity, even if it is intercepted by an unauthorized analyst, the main control unit It can be prevented from becoming a clue to analyze the processing content of 201. On the other hand, the post-stage unit 202B can perform individual authentication of the main control unit 201 from the first inspection value A generated by two different authentication methods, and can continue communication from the second inspection value B and the current synchronization method. Therefore, it is possible to detect in the subsequent stage 202B that the data has been used illegally by an unauthorized analyst. Further, since the rear stage unit 202B performs the authentication process for the main control unit 201 and transmits the subsequent stage authentication result to the peripheral unit 202A, the peripheral unit 202A does not perform the authentication process and only refers to the subsequent stage authentication result. Therefore, the processing addition of the CPU 241 in the peripheral portion 202A can be reduced. Therefore, even if the authentication process is complicated, there is no influence on the effect process by the peripheral portion 202A, so that both improvement of security and improvement of the interest of the game can be achieved. Furthermore, when the main control unit 201, which is a person to be authenticated, does not have a high level of processing capability, it is possible to use a plurality of authentication methods and calculation methods with a light processing load. Can be increased.

  In addition, since the rear stage unit 202B determines whether or not the difference between a plurality of consecutive second test values received from the main control unit 201 in the current synchronization method satisfies the correlation condition, Since the continuity of communication can be confirmed, it is possible to prevent the peripheral portion 202A from being adversely affected.

  Furthermore, a plurality of different synchronous check values SYn are used in the current synchronization method, and the first inspection value A in a predetermined order from among the plurality of first inspection values A corresponding to each of the plurality of synchronous inspection values SYn. Is assigned to the next synchronization method, and the subsequent stage 202B determines the next synchronization method based on the first inspection value A, so that the order of the first inspection value A used for determination of the next synchronization method is determined. Unless it can be analyzed, the fraud analyst cannot analyze the switching timing of the synchronization method. In addition, by switching the predetermined order of the first inspection value A between the main control unit 201 and the subsequent stage unit 202B, it becomes even more difficult for an unauthorized analyst to analyze the order, and the unauthorized analyst analyzes the data. It can contribute to prevention of unauthorized use.

  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 inspection value and the additional data C and transmitting the first authentication data V1 to the subsequent stage 202B. Therefore, unauthorized use of data transmitted from the main control unit 201 to the peripheral unit 202A and the subsequent unit 202B 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, the main control unit can be compared with the case where the first authentication data V1 and the second authentication data V2 are transmitted to the subsequent unit 202B alone. Since it is possible to suppress an increase in communication load between 201 and the rear stage unit 202B, it is possible to make it difficult to detect transmission timing by an unauthorized analyst.

  Further, since the first and second authentication data V1 and V2 can be encrypted and transmitted from the main control unit 201 to the subsequent stage unit 202B via the peripheral unit 202A, the first and second authentication data V1 by the unauthorized analyst , V2 can be made even more difficult, and unauthorized use of data transmitted from the main control unit 201 to the peripheral unit 202A and the subsequent unit 202B can be prevented.

[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 effect control unit (peripheral unit) 202A, a rear stage unit 202B, and a prize ball control unit 203. As shown in FIG. 19, the pachinko gaming machine 100 includes a main control board 310 having a function as the main control unit 201, and a peripheral board 330 having the above-described effect control unit 202A and the rear stage unit 202B. Is configured. The main control board 310 is electrically connected so as to communicate with the peripheral board 330.

  The main control board 310 includes the data storage unit 311, the synchronous inspection value generation unit 312, the next synchronization method selection unit 313, the individual authentication value extraction unit 314, the first inspection value generation unit 315, the second inspection value generation unit 316, A first authentication data generation unit 317, a second authentication data generation unit 318, an encryption processing unit 319, a transmission unit 320, and a next calculation method determination unit 321 are configured.

  The data storage unit 311 further 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 types. The calculation method table information indicating a plurality of types of encryption methods associated one-to-one with the calculation method is stored. 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 the setting is sequentially updated to the next calculation method determined by the next calculation method determination unit 321 from a plurality of different calculation methods. Is done. 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 321 corresponds to the next calculation method determination means of the present invention. When the next calculation method used for generating the next 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 321 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 321 determines the next calculation method, the encryption processing unit 319 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. The transmitting unit 320 transmits the encrypted first authentication data and second authentication data to the peripheral board 330.

  Similarly to the first embodiment, the pachinko gaming machine 100 according to the second embodiment also uses the first inspection value for authenticating the validity of the main control unit 201 and the continuity of communication of the main control unit 201 as two authentication factors. And a second inspection value for authenticating. 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. The switching of the next calculation method is caused to be analyzed by the peripheral board 330 by the first and second authentication data encryption methods, so that it is difficult for an unauthorized analyst to analyze the next calculation method. Unauthorized use of data transmitted from the board 310 to the peripheral board 330 can be made even more difficult.

  Subsequently, the rear stage unit 202B of the peripheral substrate 330 includes the rear stage side reception unit 331, the rear stage side storage unit 332, the decoding processing unit 333, the inspection value extraction unit 334, the first determination unit 335, the second determination unit 336, and the like. The post-authentication result data generation unit 337, the post-stage transmission unit 338, the determination unit 339, and the specifying unit 340 are included.

  The post-stage storage unit 332 corresponds to the calculation method expected value storage means of the present invention, and is a first expectation value corresponding to the first inspection value (individual authentication value) to be received from the main control board 310 described above. A plurality of expected value data for operation method generated when the first expected value data and the first authentication data generated from the first expected value are encrypted by each of the plurality of types of encryption methods. Remember. 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 340 corresponds to the specifying unit of the present invention, and the first authentication data received by the subsequent-stage receiving unit 331 from the plurality of expected values for the calculation method stored in the subsequent-stage storage unit 332, 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 333 decrypts the first authentication data and the second authentication data received by the subsequent receiving unit 331 using a decryption method corresponding to the encryption method specified by the specifying unit 340. . In addition, the inspection value extraction unit 334 specifies the first calculation method and the second calculation method based on the next calculation method specified by the specifying unit 340, and the first authentication data received by the downstream receiving unit 331 and The first inspection value or the second inspection value is extracted from the second authentication data.

  Also in the second embodiment, the CPU 211 of the main control board 310 is the first computer in the claims, and the CPU 241 of the peripheral part (effect control unit) 202A of the peripheral board 330 is the second computer in the claims of the peripheral board 330. A case will be described in which the CPU 21 of the rear stage unit 202B functions as the third computer in the claims. The ROM 212 of the main control board 310 includes a synchronous test value generation unit, a next synchronization method selection unit, an individual authentication value extraction unit, a first test value generation unit, For functioning as various means such as inspection value generation means, first authentication data generation means, second authentication data generation means, main control side transmission means, encryption means, next calculation method determination means, etc. The main control side authentication program is stored. The ROM 242 of the peripheral portion 202A of the peripheral board 330 stores a peripheral side authentication program for causing the second computer to function as various means such as transfer means, peripheral side receiving means, and processing means. Yes. The ROM 22 of the rear stage portion 202B of the peripheral board 330 includes the third computer in the rear side receiving means, the decoding means, the inspection value extracting means, the first determining means, the second determining means, and the subsequent authentication result data. A post-stage side authentication program for functioning as various means such as generating means, post-stage transmitting means, determining means, specifying means, etc. is stored. That is, the authentication program of the present invention is constituted by the main control side authentication program, the peripheral side authentication program, and the subsequent stage 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 order to simplify the explanation, the first inspection value is one inspection value in the claims.

  In the main control unit 201, as shown in FIG. 20, 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. Then, in the rear stage unit 202B, a value when the first authentication data V1 is calculated for each of the next first calculation methods H1A, H1B, and H1C is calculated in advance for the first inspection value, and the calculated value is encrypted. The values obtained by encrypting with the encryption methods M1A, M1B, and M1C are stored in the expected value storage unit 322 as operation method expected values G1A, G1B, and G1C, respectively. The rear stage unit 202B includes encryption methods M1A, M1B, and M1C corresponding to the calculation method expected values G1A, G1B, and G1C and their decryption methods N1A, N1B, and N1C, and the next first calculation method H1A, H1B, It is stored in association with H1C.

  As a result, the post-stage unit 202B identifies the calculation method expected values G1A to G1C that match the encrypted first authentication data V1, and is associated with the specified calculation method expected values G1A to G1C. Next, the first calculation method H1A to C and the decoding method N1A to C can be specified.

  Further, for the second calculation method H2A, H2B, and H2C of the second authentication data V2, the calculation method expected values G1A, G1B, and G1C corresponding to the first authentication data V1 described above are used. explain.

  In the main control unit 201 and the subsequent stage unit 202B, for each of the calculation method expected values G1A, G1B, and G1C, the encryption methods M2A, M2B, and M2C, the decryption methods N2A, N2B, and N2C The methods H2A, H2B, and H2C are stored in association with each other. The first calculation methods H1A, H1B, and H1C are the same as the second calculation methods H2A, H2B, and H2C, and the encryption methods M1A, M1B, and M1C and the encryption methods M2A, M2B, and M2C are the same. However, instead of this, different calculation methods and encryption methods can be set.

  As a result, the post-stage unit 202B only identifies the calculation method expected values G1A to G1C that match the encrypted first authentication data V1, and is associated with the specified calculation method expected values G1A to G1C. Next time, the second calculation method H2A to C and the decoding method N2A to C can also be specified.

  Further, as examples of the encryption methods M1A to C, M2A to C, and the decryption methods N1A to C and N2A to C, various different methods such as a method of encrypting and decrypting using different keys can be used. .

  In the present embodiment, in order to simplify the description, the case where the first inspection value is one inspection value in the claims will be described. Instead, the second inspection value is replaced with one inspection value. It can also be. In this case, since the second inspection value is a value that changes according to the counting method, a different variation range corresponding to the difference between the previous and current second authentication data V2 is set as the expected range for the calculation method. Can respond.

(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 subsequent stage unit 202B will be described. First, an example of a control signal transmission procedure 2 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 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 main control unit 201 proceeds to the process of step S2212. 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 a synchronization check value that satisfies the correlation condition of the current synchronization method, stores it in the data storage unit 311 in time series, and then proceeds to the process of step S2203. As an example of the method for generating the synchronization check value, when the synchronization method targets the previous and subsequent synchronization check values, the synchronization check value is generated based on the previous synchronization check value and the correlation condition (for example, +2). In step S2203, the main control unit 201 selects the next synchronization method from a plurality of types of synchronization methods, stores it in the data storage unit 311 and the like, and then proceeds to the processing in step S2204.

  In step S2204, the main control unit 201 extracts an individual authentication value associated with the selected next synchronization method from a plurality of types of individual authentication values stored in the data storage unit 311, and the RAM 213 or the like. And then the process proceeds to step S2205. In step S2205, the main control unit 201 generates a first inspection value A of the first authentication method from the extracted individual authentication value of the main control unit 201 and stores it in the RAM 213 or the like. In step S2206, the generation is performed. The second inspection value B of the second authentication method is generated from the synchronized inspection value and stored in the RAM 213 or the like, and then the process proceeds to step S2207.

  In step S2207, 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 (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 S2208.

  In step S2208, 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 V2d and stored in the RAM 213 or the like, and then the processing in step S2209 is performed. move on.

  In step S2209, 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. The next second calculation method is determined regularly or irregularly from the inside, the next calculation information is updated so as to be the specified next calculation method, and then the process proceeds to step S2210.

  In step S2210, 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 V2d are encrypted, and then the process proceeds to step S2211. In step S2211, the main control unit 201 generates an authentication data-added control signal 1020 based on the first authentication data V1c, the second authentication data V2d, and the control command data 1001 to the peripheral unit. Then, the process proceeds to step S2212.

  In step S2212, 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 (S2212: 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 (S2212: Yes), the process according to this flowchart ends.

  Next, procedure 2 of various types of control signal reception processing by the CPU 21 (third computer) of the rear stage unit 202B will be described with reference to the flowchart of FIG.

  The post-stage unit 202B determines whether or not a control signal has been received from the main control unit 201 in step S2301 illustrated 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 subsequent stage unit 202B determines whether or not the authentication data 1003 is included in the received control signal. If the post-stage unit 202B determines that the authentication data 1003 is not included (S2302: No), in step S2303, the post-stage unit 202B generates post-stage authentication result data 1004 indicating that the main control board 310 has not been authenticated, and the RAM 23 Etc., and then the process proceeds to step S2314. On the other hand, if the latter stage unit 202B determines that the authentication data 1003 is included (S2302: Yes), the process proceeds to step S2304.

  In step S2304, the subsequent stage unit 202B determines whether or not the first authentication data V1c of the authentication data 1003 matches the expected value for the calculation method. If the subsequent stage unit 202B determines that the expected value for the calculation method does not match (S2304: No), the process proceeds to step S2313. On the other hand, if the latter stage unit 202B determines that it 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 matching expected value for the calculation method. The second authentication data V2d is decrypted and stored in the RAM 233 or the like, and then the process proceeds to step S2306.

  In step S2306, the rear stage unit 202B determines the first authentication data V1c and the second authentication data V2d that have been decrypted in the previous process or the initial value (first time only). Based on the calculation method, the second calculation method, and the additional data C, the inverse calculation is performed as described above, and the first inspection value A ′ and the second inspection value B ′ are converted into the first authentication data V1c and the second authentication. In step S2307, the extracted first inspection value A ′ and the second inspection value B ′ are associated with each other and stored in time series in the subsequent stage storage unit 332, and then the process proceeds to step S2308.

  In step S2308, the rear stage unit 202B authenticates the first inspection value A ′ based on whether or not the extracted first inspection value A ′ matches the predetermined first expected value. It is determined whether or not. If the latter stage unit 202B determines that the authentication is not established (S2308: No), the process proceeds to step S2313. On the other hand, if it is determined that the authentication is established (S2308: Yes), that is, if the authentication of the first inspection value A ′ is established, the subsequent stage unit 202B proceeds to the process of step S2309.

  In step S2309, the rear stage unit 202B calculates a difference between the second inspection value B ′ extracted this time and the previous second inspection value B ′, and whether or not the difference satisfies the correlation condition of the current synchronization method. Based on the above, it is determined whether authentication of the second inspection value B ′ is established. Then, if it is determined that the authentication is established (S2309: Yes), the post-stage unit 202B establishes authentication for the main control unit 201 in step S2310, generates post-stage authentication result data 1004 indicating the establishment of the authentication, and stores it in the RAM 233 or the like. Then, the process proceeds to step S2311.

  The post-stage unit 202B stores the synchronization method associated with the first test value A ′ (individual authentication value) associated with the second test value B ′ (synchronous test value) in the post-stage storage unit 332 in step S2311. Based on the stored expected value data, it is identified from a plurality of types of synchronization methods, the identified synchronization method is determined as the next synchronization method used by the peripheral unit, and stored in the subsequent storage unit 332 or the like, Thereafter, the process proceeds to step S2312. In step S2312, the subsequent stage unit 202B 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 or the like. Thereafter, the process proceeds to step S2314.

  In step S2314, the subsequent stage unit 202B adds the generated subsequent 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 generates the authentication result signal 1030. In step S2315, the generated authentication result signal 1030 is transmitted to the peripheral unit 202A, and then the process proceeds to step S1316.

  In step S2316, the rear stage unit 202B determines whether or not the pachinko gaming machine 100 is powered off. If the peripheral portion determines that the power is not turned off (S2316: No), the processing returns to step S2301, and a series of processing is repeated. On the other hand, if it is determined that the power is turned off (S2316: Yes), the rear stage unit 202B ends the process according to this flowchart.

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

(Example of authentication processing procedure using authentication data)
Next, an example of a procedure for performing authentication processing by switching the above-described synchronization methods Pa and Pb using the solid authentication values Ca and Cb will be described. It is assumed that the correlation conditions and the like of the synchronization methods Pa and Pb are the same as those in the above-described first embodiment (example of authentication processing procedure using authentication data).

  The main control board 310 that is the person to be authenticated generates the synchronization check value SY1 with the current synchronization method Pa, selects and stores the synchronization method Pb as the next synchronization method, and the individual authentication value Cb corresponding to the synchronization method Pb. Are extracted from the data storage unit 311. The main control board 310 generates a first inspection value A1 that is an individual authentication value of the normal CPU 211, and generates a second inspection value B1 that is a synchronous inspection value of the normal CPU 211. 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 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 peripheral portion 202A of the peripheral board 330. Then, the main control board 310 performs the first second authentication data V2Ad1 = H2Ad (based on the second inspection value B1, the first inspection value A1, and the second calculation method H2A that is a predetermined calculation method this time. B1 and A1) are generated, and the second authentication data V2Ad1 is encrypted by the encryption method M2B corresponding to the next second calculation method H2B and transmitted to the peripheral portion 202A of the peripheral board 330.

  On the other hand, the peripheral part 202A of the peripheral board 330 transfers the first authentication data V1Ac1 received from the main control board 310 to the subsequent stage part 202B. Then, the peripheral unit 202A transfers the second authentication data V2Ad1 received from the main control board 310 to the subsequent unit 202B.

  On the other hand, the rear stage portion 202B of the peripheral board 330 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 V2Ad1 received from the main control board 310. The matching expected value G2B for the calculation method is specified. Thereby, the peripheral board 330 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.

  The post-stage unit 202B decrypts the first authentication data V1Ac1 by the specified decryption method N1B, and performs reverse operation using the first operation method H1A and the 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 a predetermined first expected value. Then, the rear stage unit 202B extracts the second inspection value B1 from the second authentication data V2Ad1 using the calculation method H2d and the first inspection value A1, and extracts the second inspection value B1 from the first and second inspection values. The authentication value Cb and the synchronization check value SY1 are acquired and stored in the subsequent-stage storage unit 332 in association with each other. Then, the peripheral board 330 calculates a difference between the second inspection value B1 and the previous second inspection value B0 (initial value), and determines whether or not the difference satisfies the correlation condition of the current synchronization method Pa. Authentication is performed based on the result. The post-stage unit 202B generates post-authentication result data 1004 indicating the 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 authentication having the post-stage authentication result data 1004 The result signal 1030 is transmitted to the peripheral portion 202A of the peripheral substrate 330.

  On the other hand, the peripheral part 202A of the peripheral board 330 is configured to perform predetermined processing corresponding to the control command data 1001 and the accompanying data 1002 when the post-authentication result data 1004 received from the post-stage part 202B indicates that authentication has been established. I do. Then, the peripheral substrate 330 continues the next authentication process when the 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 330 recognizes by analyzing the first authentication data V1Ac1 and the second authentication data V2Ad1 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.

  According to the pachinko gaming machine 100 described above, the main control unit 201 checks one of the first test value A for testing the individual authentication values Ca and Cb and the second test value B for testing the synchronous test value SYn. When the first authentication data V1 is generated using the first authentication data V1, the second authentication data V2 is generated using all or a part of the one inspection value and the other inspection value, and is transmitted to the rear stage 202B. Therefore, since it is difficult for an unauthorized analyst to analyze the generation method of the first authentication data V1 and the second authentication data V2, the first inspection value A and the second inspection value B can be extracted. Therefore, unauthorized use of data transmitted from the main control unit 201 to the subsequent stage S02B can be prevented. Further, since the synchronization check value SYn is a value generated by switching a plurality of types of synchronization methods, even if the synchronization check value SYn is a value indicating communication continuity, even if it is intercepted by an unauthorized analyst, the main control unit It can be prevented from becoming a clue to analyze the processing content of 201. On the other hand, the post-stage unit 202B can perform individual authentication of the main control unit 201 from the first inspection value A generated by two different authentication methods, and can continue communication from the second inspection value B and the current synchronization method. Therefore, it is possible to detect in the subsequent stage 202B that the data has been used illegally by an unauthorized analyst. Further, since the rear stage unit 202B performs the authentication process for the main control unit 201 and transmits the subsequent stage authentication result to the peripheral unit 202A, the peripheral unit 202A does not perform the authentication process and only refers to the subsequent stage authentication result. Therefore, the processing addition of the CPU 21 in the peripheral portion 202A can be reduced. Therefore, even if the authentication process is complicated, there is no influence on the effect process by the peripheral portion 202A, so that both improvement of security and improvement of the interest of the game can be achieved. Furthermore, when the main control unit 201, which is a person to be authenticated, does not have a high level of processing capability, it is possible to use a plurality of authentication methods and calculation methods with a light processing load. Can be increased.

  In addition, since the rear stage unit 202B determines whether or not the difference between a plurality of consecutive second test values received from the main control unit 201 in the current synchronization method satisfies the correlation condition, Since the continuity of communication can be confirmed, it is possible to prevent the peripheral portion 202A from being adversely affected.

  Furthermore, a plurality of different synchronous check values SYn are used in the current synchronization method, and the first inspection value A in a predetermined order from among the plurality of first inspection values A corresponding to each of the plurality of synchronous inspection values SYn. Is assigned to the next synchronization method, and the subsequent stage 202B determines the next synchronization method based on the first inspection value A, so that the order of the first inspection value A used for determination of the next synchronization method is determined. Unless it can be analyzed, the fraud analyst cannot analyze the switching timing of the synchronization method. In addition, by switching the predetermined order of the first inspection value A between the main control unit 201 and the subsequent stage unit 202B, it becomes even more difficult for an unauthorized analyst to analyze the order, and the unauthorized analyst analyzes the data. It can contribute to prevention of unauthorized use.

  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 inspection value and the additional data C and transmitting the first authentication data V1 to the subsequent stage 202B. Therefore, unauthorized use of data transmitted from the main control unit 201 to the peripheral unit 202A and the subsequent unit 202B 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, the main control unit can be compared with the case where the first authentication data V1 and the second authentication data V2 are transmitted to the subsequent unit 202B alone. Since it is possible to suppress an increase in communication load between 201 and the rear stage unit 202B, it is possible to make it difficult to detect transmission timing by an unauthorized analyst.

  Further, since the first and second authentication data V1 and V2 can be encrypted and transmitted from the main control unit 201 to the subsequent stage unit 202B via the peripheral unit 202A, the first and second authentication data V1 by the unauthorized analyst , V2 can be made even more difficult, and unauthorized use of data transmitted from the main control unit 201 to the peripheral unit 202A and the subsequent unit 202B 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. The unauthorized use of data transmitted to the peripheral portion 202A and the subsequent portion 202B can be made even more difficult.

(Other identification methods for the next calculation method in the latter part)
Next, in the pachinko gaming machine 100 described above, expected value data Da and Db corresponding to the individual authentication values Ca and Cb, and first and second authentication data are stored in the rear storage unit 332 of the peripheral board 330 shown in FIG. In the other specific method, only the expected values corresponding to the expected value data Da and Db need be stored in the subsequent storage unit 332. Then, different next calculation methods H1A, B, H2A, B are associated with the expected value data Da, Db, respectively.

  The decryption processing unit 333 decrypts the first authentication data and the second authentication data received from the main control board 310 using all of a plurality of types of decryption methods corresponding to the plurality of types of encryption methods. In order to simplify the description of the plurality of types of decoding methods, the case of the decoding methods N1A, B, N2A, and B shown in FIG. 19 described above will be described, but three or more types of decoding methods 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. 19 are unnecessary.

  The inspection value extraction unit 334 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 333 using the encryption methods M1A to C, M2A to Extract in association with C. Specifically, the inspection value extraction unit 334 includes encryption schemes M1A, B, M2A, and decryption schemes N1A, B, N2A, and B that are used for decrypting the first authentication data and the second authentication data. Identify B and associate it with the extracted first and second test values.

  The specifying unit 340 includes the first test value that matches the expected value stored in the subsequent-stage storage unit 332 among all the first test values and the second test values extracted by the test value extraction unit 334, and the A second inspection value is specified, and the next calculation method of the inspection value extraction unit (means) 334 is determined based on the encryption methods M1A, B, M2A, and B associated with the specified first inspection value and the second inspection value. A plurality of types of calculation methods H1A, B, H2A, B are specified. Then, the inspection value extraction unit 334 performs the next extraction process using the next calculation method specified by the specifying unit 340.

  Next, a procedure 2 ′ for receiving various control signals by the CPU 21 (third computer) of the rear stage unit 202 </ b> B will be described with reference to the flowchart of FIG. 23.

  The post-stage unit 202B determines whether or not a control signal has been received from the main control unit 201 in step S2601. When it is determined that the control signal is not received (S2601: No), the latter stage unit 202B 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 rear stage unit 202B proceeds to the process of step S2602.

  In step S2602, the subsequent stage unit 202B determines whether or not the authentication data 1003 is included in the received control signal. If the subsequent stage unit 202B determines that the authentication data 1003 is not included (S2602: No), since it is the normal control signal 1010 that is received, the authentication of the main control board 310 is performed in step S2603. Post-authentication result data 1004 indicating unimplemented is generated and stored in the RAM 23 or the like, and then the process proceeds to step S2613. On the other hand, if the latter stage unit 202B determines that the authentication data 1003 is included (S2602: Yes), the process proceeds to step S2604.

  In step S2604, the rear stage unit 202B obtains the authentication data 1003 included in the control signal with authentication data 1020, and performs the first authentication with each of a plurality of different types of decryption methods N1A, B, N2A, and B. The data V1c and the second authentication data V2d 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 two types of decryption methods, two types of first authentication data V1c are stored.

  In step S2605, the rear stage unit 202B is determined in the previous process with each of the decrypted first authentication data V1c and second authentication data V2d, or is determined as an initial value ( (Only for the first time) Based on the first calculation method and the second calculation method and the additional data C, the reverse calculation is performed to extract the first inspection value A ′ and the second inspection value B ′, and in step S2606 the extracted first The first inspection value A ′ and the second inspection value B ′ are associated with each other and stored in time series in the subsequent-stage storage unit 332, and then the process proceeds to step S2607.

  In step S <b> 2607, the subsequent stage unit 202 </ b> B determines whether there is a match between each of the extracted first inspection values A ′ and the expected value in the subsequent stage storage unit 322. If the second-stage unit 202B determines that there is no first inspection value A ′ that matches the expected value (S2607: No), the process proceeds to step S2612. On the other hand, if it is determined that there is a first inspection value A ′ that matches the expected value (S2607: Yes), the subsequent stage unit 202B proceeds to the process of step S2608 because it matches the expected value.

  In step S2608, the subsequent stage unit 202B calculates a difference between the second inspection value B ′ extracted this time and the previous second inspection value B ′, and whether or not the difference satisfies the correlation condition of the current synchronization method. Based on the above, it is determined whether authentication of the second inspection value B ′ is established. Then, if it is determined that the authentication is established (S2608: Yes), the post-stage unit 202B establishes authentication for the main control unit 201 in step S2609, generates post-stage authentication result data 1004 indicating the establishment of the authentication, and stores it in the RAM 233 or the like. Store, and then proceed to step S2610

  The post-stage unit 202B stores, in the post-stage storage unit 332, the synchronization method associated with the first test value A ′ (individual authentication value) associated with the second test value B ′ (synchronous test value) in step S2610. Identifying the plurality of types of synchronization methods based on the expected value data, determining the next synchronization method to be used by the rear-stage unit 202B and storing it in the rear-stage storage unit 332, etc. Thereafter, the process proceeds to step S2611. In step S2611, the subsequent stage unit 202B specifies the encryption method associated with the expected value that matches the first check value A ′, and sets the next calculation method (see FIG. 20) corresponding to the encryption method. The next first calculation method and the next second calculation method are specified and stored in the RAM 233 and the like, and then the process proceeds to step S2613.

  On the other hand, if it is determined in step S2608 that the second inspection value B ′ is not authenticated in step S2608 (S2608: No), the latter stage unit 202B determines that the authentication for the main control unit 201 is not established in step S2612, and indicates that the authentication is not established. Authentication result data 1004 is generated and stored in the RAM 233 and the like, and then the process proceeds to step S2613.

  In step S2613, the post-stage unit 202B generates the authentication result signal 1030 by adding the generated post-stage 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. In step S2614, the generated authentication result signal 1030 is transmitted to the peripheral portion 202A, and then the process proceeds to step S2615.

  The post-stage unit 202B determines whether or not the pachinko gaming machine 100 is powered off in step S2615. When determining that the power is not turned off (S2615: No), the rear stage unit 202B returns to the process of step S2601 and repeats a series of processes. On the other hand, if it is determined that the power is turned off (S2615: Yes), the rear stage unit 202B ends the process according to this flowchart.

  When the rear stage portion 202B configured as described above is applied to the peripheral substrate 330 described above, the authentication processing procedure is as follows. It is assumed that the two types of encryption methods M1A, B, M2A, and B and the decryption methods N1A, B, N2A, and B in FIG. 20 are used.

  The main control board 310 that is the person to be authenticated generates the synchronization check value SY1 with the current synchronization method Pa, selects and stores the synchronization method Pb as the next synchronization method, and the individual authentication value Cb corresponding to the synchronization method Pb. Are extracted from the data storage unit 311. The main control board 310 determines the first calculation method H1B and the second calculation method H2B corresponding to the expected value data Db of the individual authentication value Cb as the next calculation method. The main control board 310 determines the first first authentication data V1Ac1 = H1Ac (A1, C1) based on the first calculation method H1A, the first inspection value A1, and the additional data C1, which are predetermined calculation methods. ) Is generated, 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 peripheral portion 202A of the peripheral board 330. Then, the main control board 310 performs the first second authentication data V2Ad1 = H2Ad (based on the second inspection value B1, the first inspection value A1, and the second calculation method H2A that is a predetermined calculation method this time. B1 and A1) are generated, and the second authentication data V2Ad1 is encrypted by the encryption method M2B corresponding to the next second calculation method H2B and transmitted to the peripheral portion 202A of the peripheral board 330.

  On the other hand, the peripheral part 202A of the peripheral board 330 transfers the first authentication data V1Ac1 received from the main control board 310 to the subsequent stage part 202B. Then, the peripheral unit 202A transfers the second authentication data V2Ad1 received from the main control board 310 to the subsequent unit 202B.

  On the other hand, the rear stage unit 202B of the peripheral board 330 decodes the first authentication data V1As1 and the second authentication data V2Ad1 received from the main control board 310 by two types of decoding methods N1A, B, N2A, and B, respectively. Two decrypted first authentication data V1Ac1 and second authentication data V2Ad1 are obtained. The post-stage unit 202B extracts the first inspection value and the second inspection value from each of the first authentication data V1Ac1 and the second authentication data V2Ad1, and the first inspection value (individual authentication value) and the expected value data Compare When the second stage unit 202B identifies the first inspection value that matches the expected value data, the latter stage 202B establishes the authentication of the main control board 310, and uses two types of encryption schemes corresponding to the matching first inspection value. The method is specified from among the methods M1A, B, M2A, B. For example, when the encryption methods M1B and M2B are specified, the peripheral board 330 specifies the first calculation method H1B and H2B as the next calculation method. The post-stage unit 202B calculates a difference between the current and previous second inspection values, and performs authentication based on a determination result of whether or not the difference satisfies the correlation condition of the current synchronization method Pa. The post-stage unit 202B generates post-stage authentication result data 1004 indicating the authentication result, and transmits an authentication result signal 1030 having the post-stage authentication result data 1004 to the peripheral part 202A of the peripheral board 330. When the first authentication is established, the rear stage unit 202B determines the synchronization method Pb corresponding to the solid authentication value Cb for which the authentication is established in the current synchronization method Pa as the next synchronization method, and performs the second authentication process. I do.

  On the other hand, the peripheral part 202A of the peripheral board 330 is configured to perform predetermined processing corresponding to the control command data 1001 and the accompanying data 1002 when the post-authentication result data 1004 received from the post-stage part 202B indicates that authentication has been established. I do. Then, the peripheral substrate 330 continues the next authentication process when the authentication for both the first inspection value A1 and the second inspection value B1 is established.

  Even if the peripheral board 330 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, etc., 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 section 202A Peripheral section (production control section)
202B Subsequent section 310 Main control board 311 Data storage section 312 Synchronization inspection value generation section 313 Next synchronization method selection section 314 Individual authentication value extraction section 315 First inspection value generation section 316 Second inspection value generation section 317 First authentication data generation Unit 318 Second authentication data generation unit 319 Encryption processing unit 320 Main control side transmission unit 321 Next operation method determination unit 330 Peripheral board 331 Subsequent side reception unit 332 Subsequent side storage unit 333 Decryption processing unit 334 Inspection value extraction unit 335 First determination unit 336 Second determination unit 337 Subsequent authentication result data generation unit 338 Subsequent transmission unit 339 Determination unit 340 Identification unit 351 Transfer unit 352 Peripheral side reception unit 353 Processing unit

Claims (12)

In a gaming machine comprising: a main control unit that transmits a control command; a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit; and a rear-stage unit that performs authentication of the main control unit.
The main control unit
Individual authentication value storage means for storing a plurality of types of individual authentication values for individual authentication of the main control unit and one-to-one correspondence with each of a plurality of different types of synchronization methods used in communication with the subsequent stage unit ,
A synchronization check value generating means for generating a synchronization check value for confirming continuity of communication with the subsequent stage unit in the current synchronization method selected from the plurality of types of synchronization methods;
Next synchronization method selection means for selecting a next synchronization method to be used next to the current synchronization method from among the plurality of types of synchronization methods;
An individual authentication value extracting means for extracting an individual authentication value associated with the selected next synchronization method from the individual authentication value storage means;
First test value generation means for generating a first test value for testing the extracted individual authentication value by a first authentication method;
Second inspection value generation means for generating a second inspection value for inspecting the generated synchronous inspection 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;
Main control side transmission means for transmitting the generated first authentication data and second authentication data to the subsequent stage via the peripheral part,
The latter part is
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 each of the plurality of types of synchronization methods being associated one-to-one;
Subsequent receiving means for receiving the first authentication data and the second authentication data transferred from the peripheral part;
Inspection value extraction means for extracting the first inspection value and the second inspection value from the received first authentication data and second authentication data based on the first operation method and the second operation method;
A test value storage means for storing a plurality of the first test values and the second test values extracted in time series in association with each other;
First determination means for determining the validity of the first inspection value based on a determination result of whether or not the expected value data that matches the extracted first inspection value is stored in the expected value data storage means When,
Based on a plurality of second test values stored in the test value storage means, it is determined whether or not the second test value extracted this time satisfies a predetermined correlation condition corresponding to the current synchronization method. A second determination means for determining;
Post-stage authentication result data generating means for generating post-stage authentication result data indicating whether or not authentication of the main control unit is established based on the determination results of the first determination means and the second determination means;
A post-stage transmitting means for transmitting the generated post-authentication result data to the peripheral part;
When the second determination unit determines that the correlation condition is satisfied, the second determination unit specifies the synchronization method corresponding to the expected value data that matches the first inspection value in the synchronization method. A next synchronization method and a determining means for determining,
The peripheral portion is
Transfer means for transferring the first authentication data and the second authentication data received from the main control unit to the subsequent unit;
Peripheral side receiving means for receiving the latter authentication result data from the latter part;
A gaming machine comprising processing means for performing the predetermined processing in accordance with the received subsequent authentication result data.   The second determination means is means for determining whether or not a difference between a plurality of consecutive second test values stored in time series in the test value storage means satisfies the correlation condition. The gaming machine according to claim 1. Each of the plurality of types of synchronization methods uses a plurality of different synchronization check values,
The next synchronization method selection means is means for selecting the next synchronization method when generating a first inspection value in a predetermined order from a plurality of first inspection values corresponding to the current synchronization method. Yes,
The determining means is means for determining the next synchronization method based on the individual authentication values in a predetermined order from among a plurality of first test values corresponding to the current synchronization method. The gaming machine according to claim 1 or 2. The first authentication data generation means is means for generating the first authentication data by the first calculation method by combining the one inspection value and predetermined additional data,
The second authentication data generation means calculates the second authentication data by calculating all or part of the one inspection value and at least one of the additional data and the other inspection value by the second operation method. A means of generating data, and
The inspection value extraction means is means for extracting the one inspection value from the received first authentication data based on the expected value, the additional data, and the first calculation method. The gaming machine according to any one of 1 to 3. The main control side transmission means is means for adding at least one of the first authentication data and the second authentication data to the control command and transmitting the control command to the subsequent stage,
5. The post-stage receiving means is means for receiving the first authentication data and the second authentication data added to the control command from the peripheral portion. The gaming machine according to item 1. The main control unit includes a predetermined encryption method for at least one 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. With encryption means to encrypt with
The main control side transmission means is means for transmitting the encrypted first authentication data and second authentication data to the subsequent stage through the peripheral part,
The latter-stage unit includes a decryption unit that decrypts the received first authentication data and second authentication data in a decryption method corresponding to the encryption method of the encryption unit,
The inspection value extraction unit extracts the first inspection value and 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 gaming machine according to any one of claims 1 to 5, wherein the gaming machine is a means for playing. Each of the first calculation method and the second calculation method includes a plurality of different calculation methods in which different types of encryption methods are associated one-to-one.
The main control unit includes a next calculation method determining means for determining a next calculation method to be used for generating the first authentication data and the second authentication data from the plurality of types of calculation methods,
The encryption means is means for encrypting the first authentication data and the second authentication data in an encryption method indicating the next operation method determined by the next operation method determining means,
The latter part is
The expected value for the calculation method of the first authentication data generated corresponding to each of the plurality of types of encryption methods, the plurality of types of encryption methods and the next calculation method corresponding to each encryption method, Expected value storage means for calculation method for storing a plurality of items in association with each other,
The calculation method expectation value that matches the received first authentication data is specified from the plurality of calculation method expectation values, and the encryption method corresponding to the matching operation method expectation value is specified. And a specifying means for specifying the next calculation method from among the plurality of types of calculation methods,
The decryption means is means for decrypting the received first authentication data and second authentication data based on a decryption method corresponding to the specified encryption method;
The inspection value extraction means is means for extracting the first inspection value or the second inspection value from the received first authentication data and second authentication data based on the specified next calculation method. The gaming machine according to claim 6. Each of the first calculation method and the second calculation method includes a plurality of different calculation methods in which different types of encryption methods are associated one-to-one.
The main control unit includes a next calculation method determining means for determining a next calculation method to be used for generating the first authentication data and the second authentication data from the plurality of types of calculation methods,
The encryption means is means for encrypting the first authentication data and the second authentication data in an encryption method indicating the next operation method determined by the next operation method determining means,
The subsequent-stage decryption means is 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. Yes,
The inspection value extracting means is means for performing the extraction by associating the first inspection value and the second inspection value with the encryption method from all the decrypted first authentication data and second authentication data. ,
The latter part identifies the first inspection value that matches the expected value from among all the extracted first inspection values, and applies the encryption method associated with the identified first inspection value. 7. The gaming machine according to claim 6, further comprising a specifying unit that specifies the next calculation method of the inspection value extraction unit from the plurality of types of calculation methods. A main control board that is used in a gaming machine having a peripheral board composed of a peripheral part and a rear part, transmits a control command for performing predetermined processing in the gaming machine to the peripheral part, and is authenticated by the rear part. In
Individual authentication value storage means for storing a plurality of types of individual authentication values for individual authentication of the main control board and one-to-one correspondence with different types of synchronization methods used in communication with the peripheral board ,
A synchronization check value generating means for generating a synchronization check value for confirming continuity of communication with the subsequent stage unit in the current synchronization method selected from the plurality of types of synchronization methods;
Next synchronization method selection means for selecting a next synchronization method to be used next to the current synchronization method from among the plurality of types of synchronization methods;
Individual authentication value extraction means for extracting the individual authentication value associated with the selected next synchronization method from the individual authentication value storage means;
First test value generation means for generating a first test value for testing the extracted individual authentication value by a first authentication method;
Second inspection value generation means for generating a second inspection value for inspecting the generated synchronous inspection 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;
A main control board comprising: main control side transmitting means for transmitting the generated first authentication data and second authentication data to the subsequent stage through the peripheral portion. In a peripheral board that is mounted on a gaming machine including the main control board according to claim 9 and performs a predetermined process based on a control command transmitted by 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 each of the plurality of types of synchronization methods being associated one-to-one;
Subsequent receiving means for receiving the first authentication data and the second authentication data transferred from the peripheral part;
Inspection value extraction means for extracting the first inspection value and the second inspection value from the received first authentication data and second authentication data based on the first operation method and the second operation method;
A test value storage means for storing a plurality of the first test values and the second test values extracted in time series in association with each other;
First determination means for determining the validity of the first inspection value based on a determination result of whether or not the expected value data that matches the extracted first inspection value is stored in the expected value data storage means When,
Based on a plurality of second test values stored in the test value storage means, it is determined whether or not the second test value extracted this time satisfies a predetermined correlation condition corresponding to the current synchronization method. A second determination means for determining;
Post-stage authentication result data generating means for generating post-stage authentication result data indicating whether or not authentication of the main control unit is established based on the determination results of the first determination means and the second determination means;
A post-stage transmitting means for transmitting the generated post-authentication result data to the peripheral part;
When the second determination unit determines that the correlation condition is satisfied, the second determination unit specifies the synchronization method corresponding to the expected value data that matches the first inspection value in the synchronization method. A subsequent stage comprising a next synchronization method and a determining means for determining,
Transfer means for transferring the first authentication data and the second authentication data received from the main control unit to the subsequent unit;
Peripheral side receiving means for receiving the latter authentication result data from the latter part;
A peripheral board comprising: a peripheral unit including processing means for performing the predetermined processing in accordance with the received subsequent authentication result data. Authentication of a gaming machine comprising: a main control unit that transmits a control command; a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit; and a rear-stage unit that performs authentication of the main control unit In the method
The main control unit
In the current synchronization method selected from the plurality of types of synchronization methods, a synchronization check value generation step for generating a synchronization check value for confirming continuity of communication with the subsequent stage unit,
Next synchronization method selection step for selecting the next synchronization method to be used next to the current synchronization method from among the plurality of types of synchronization methods;
The individual authentication value associated with the selected next synchronization method is associated one-to-one with each of a plurality of different synchronization methods used in communication with the subsequent stage unit, and the main control unit is individually authenticated. An individual authentication value extracting step for extracting from an individual authentication value storage means for storing a plurality of types of individual authentication values for
A first inspection value generating step of generating a first inspection value for inspecting the extracted individual authentication value by a first authentication method;
A second inspection value generation step of generating a second inspection value for inspecting the generated synchronous inspection 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;
A main control side transmission step of transmitting the generated first authentication data and second authentication data to the subsequent stage section via the peripheral section,
The latter part is
A rear-side receiving step of receiving the first authentication data and the second authentication data transferred from the peripheral portion;
An inspection value extracting step of extracting the first inspection value and the second inspection value from the received first authentication data and second authentication data based on the first operation method and the second operation method;
The extracted first inspection value is stored in 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 each of the plurality of types of synchronization methods being associated one-to-one. A first determination step of determining the validity of the first inspection value based on a determination result of whether or not the expected value data that coincides with is stored;
Based on the plurality of second test values of the test value storage means for storing the extracted first test value and second test value in association with each other in time series, the second test value extracted this time is the current synchronization method. A second determination step of determining whether or not a predetermined correlation condition is satisfied,
A subsequent authentication result data generating step for generating subsequent authentication result data indicating whether or not authentication of the main control unit is established based on the determination results of the first determination step and the second determination step;
A subsequent transmission step of transmitting the generated subsequent authentication result data to the peripheral part;
When the second determination step determines that the correlation condition is satisfied, the second determination unit specifies the synchronization method corresponding to the expected value data that matches the first inspection value in the synchronization method. A next synchronization method and a determining step for determining,
The peripheral portion is
A transfer step of transferring the first authentication data and the second authentication data received from the main control unit to the subsequent unit;
A peripheral side receiving step of receiving the latter authentication result data from the latter part;
And a processing step of performing the predetermined processing according to the received subsequent authentication result data. Authentication of a gaming machine comprising: a main control unit that transmits a control command; a peripheral unit that performs predetermined processing based on the control command transmitted by the main control unit; and a rear-stage unit that performs authentication of the main control unit A program,
A first computer of the main control unit;
A synchronization check value generating means for generating a synchronization check value for confirming continuity of communication with the subsequent stage unit in the current synchronization method selected from the plurality of types of synchronization methods;
Next synchronization method selection means for selecting a next synchronization method to be used next to the current synchronization method from among the plurality of types of synchronization methods;
The individual authentication value associated with the selected next synchronization method is associated one-to-one with each of a plurality of different synchronization methods used in communication with the subsequent stage unit, and the main control unit is individually authenticated. Individual authentication value extraction means for extracting from an individual authentication value storage means for storing a plurality of types of individual authentication values for
First test value generation means for generating a first test value for testing the extracted individual authentication value by a first authentication method;
Second inspection value generation means for generating a second inspection value for inspecting the generated synchronous inspection 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;
Allowing the generated first authentication data and second authentication data to function as a main control side transmission step for transmitting to the subsequent stage section via the peripheral section;
A third computer at the rear stage;
Subsequent receiving means for receiving the first authentication data and the second authentication data transferred from the peripheral part;
Inspection value extraction means for extracting the first inspection value and the second inspection value from the received first authentication data and second authentication data based on the first operation method and the second operation method;
The extracted first inspection value is stored in 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 each of the plurality of types of synchronization methods being associated one-to-one. First determination means for determining the validity of the first inspection value based on a determination result of whether or not the expected value data that matches
Based on the plurality of second test values of the test value storage means for storing the extracted first test value and second test value in association with each other in time series, the second test value extracted this time is the current synchronization method. Second determination means for determining whether or not a predetermined correlation condition is satisfied,
Post-stage authentication result data generating means for generating post-stage authentication result data indicating whether or not authentication of the main control unit is established based on the determination results of the first determination means and the second determination means;
A post-stage transmitting means for transmitting the generated post-authentication result data to the peripheral part;
When the second determination unit determines that the correlation condition is satisfied, the second determination unit specifies the synchronization method corresponding to the expected value data that matches the first inspection value in the synchronization method. To act as a decision means to decide the next synchronization method,
The peripheral second computer,
Transfer means for transferring the first authentication data and the second authentication data received from the main control unit to the subsequent unit;
Peripheral side receiving means for receiving the latter authentication result data from the latter part;
A gaming machine authentication program for functioning as processing means for performing the predetermined processing in accordance with the received subsequent authentication result data.

Images