JP2002095843A - Game control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve security between a main control device and a subsidiary control device. SOLUTION: A game control device is separated into a main control device 1 and a subsidiary control device 2, the main control device 1 has a code algorithm 12 and the subsidiary control device 2 has a code algorithm 13 pair composed of the code algorithm 12, the main control device 1 encrypts commands by the code algorithm 12 and outputs to the subsidiary control device 2 and the subsidiary control device 2 decrypts the commands received from the main control device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a game machine such as a pachinko machine and a slot machine.

[0002]

2. Description of the Related Art A game control device disclosed in Japanese Patent Application Laid-Open No. 11-276699 is divided into a main control device and a symbol display control device, and the main control device and the symbol display control device are connected to each other by eight control data lines. And one ENABLE wiring and one
These are connected by ground wiring. The main control device encrypts the 2-byte security check code based on the value of the program counter (encryption key), or measures the processing time of a predetermined portion in the game control program, and based on the measured value (encryption key). Encrypt. The main controller generates a display control command consisting of 6 bytes. The main controller adds the encrypted security check code including the encryption key and the display control command, and outputs a control signal of 8 bytes to the symbol display controller via the control wiring.
Since there are eight control lines, the control signal is 8 bytes per byte.
Sent separately. The symbol display control device decodes the encrypted security check code from the main control device, determines whether the decrypted security check code is normal, and performs display control if it determines that the security check code is not normal. Stop the control operation by the data.

[0003]

However, the prior art has a configuration in which an encrypted security check code and an unencrypted display control command are transmitted between the main controller and the symbol display controller. A method of encrypting a security check code (encryption algorithm) by externally measuring an encrypted security check code and a display control command between the main control device and the symbol display control device.
And display control commands can be analyzed, and it cannot be denied that security is insufficient.

Accordingly, the present invention provides a game control device capable of improving security between a main control device and a slave control device.

[0005]

Means for Solving the Problems In one aspect of the invention,
The game control device is divided into a main control device and a slave control device,
The master controller has an encryption algorithm, the slave controller has a decryption algorithm paired with the encryption algorithm, the master controller encrypts the command with the encryption algorithm and outputs the command to the slave controller, and the slave controller has It is characterized in that the command received from the main control device is decoded.
Therefore, according to the present invention, since the command communicated between the master controller and the slave controller is encrypted, even if the encrypted command is measured from the outside, the analysis of the command becomes complicated. , Improve security. In another invention, the game control device is divided into a master control device and a slave control device, the master control device has an encryption counter and a plurality of encryption algorithms, and the slave control device has a decryption counter and a plurality of encryption algorithms. A decryption algorithm, wherein each of the encryption algorithms and each of the decryption algorithms are paired, and the main controller encrypts the command with one encryption algorithm selected by the encryption counter value, and outputs the command to the slave control device. The control device is characterized in that the command received from the main control device is decrypted by one decryption algorithm selected by the counter value of the decryption counter operating in correspondence with the encryption counter. Therefore, according to the present invention, the main controller outputs a command encrypted with the selected one encryption algorithm to the slave controller, and the slave controller is selected corresponding to the selected one encryption algorithm. By decrypting the command from the main control device with the single decryption algorithm, it is not necessary to exchange a key between the master and slave control devices, thereby improving security. Further, according to the present invention, the main controller changes the encryption algorithm in sequence each time the encryption command is transmitted, and the slave controller changes the decryption algorithm in accordance with the encryption algorithm each time the encryption command is received. Then, even if the same encrypted command is measured from the outside, the encryption algorithm is different each time the command is transmitted / received from the main control device to the slave control device, so that the analysis of the command becomes complicated and the security is further improved. .

[0006]

1 and 2 show a game control device according to a first embodiment of the present invention. FIG. 1 shows a basic structure of the game control device, and FIG. 2 shows an entire structure of the game control device. Is shown.

With reference to FIG. 1, a basic configuration of the game control device will be described. The game control device includes a main control device 1 and a sub control device 2
It is divided into and. The main control device 1 and the slave control device 2 are configured such that a CPU of a built-in microcomputer executes a process according to a program written in a ROM while using a RAM as a temporary storage device. Main controller 1 and slave controller 2 are connected to each other by eight data lines D0 to D7, one control line ENABLE and one ground line, and a total of ten lines are referred to as wiring 3. It is illustrated by a single solid line. A winning ball detection switch 5 is connected to the main controller 1 via a wiring 4. The prize ball detection switch 5 outputs a prize ball detection signal to the main controller 1 every time the prize ball 7 that has won the prize port 6 is detected. The winning opening 6 includes a plurality of or a plurality of types of winning opening 6 called a general winning opening, a starting opening, a variable winning opening, and the like, and one of them is shown in a generic form. An operation mechanism 9 is connected to the slave control device 2 via a wiring 8. In FIG. 1, the prize ball payout control when the slave control device 2 is the ball payout control device 10 and the operating mechanism 9 is the ball payout mechanism 11 will be described as an example.

In this embodiment, the general winning opening pays out ten prize balls every time one prize ball is won. Each time one winning ball wins, five starting balls are paid out, and a liquid crystal or LE provided as a center accessory on the game board is provided.
A symbol change game of a display such as a D or CRT or a plasma display starts. However, if a prize ball wins at the starting port during one game using the display, a predetermined number such as four is stored and stored every time the symbol change game is completed on the display. In the range of the stored number, the symbol change game on the display is repeated. Each time the combination of symbols stopped at the end of one symbol change game on the display matches the predetermined combination, the variable winning opening opens in a form that allows a ball to easily enter. The variable winning opening is also called a large winning opening, and every time one winning ball is entered, 15 winning balls are paid out. However, if the variable winning opening is open once, 10 winning balls
Alternatively, the variable winning opening is closed when any one of the conditions of elapse of a predetermined time such as 30 seconds from the start of opening is satisfied. The variable winning opening is opened and closed by a variable winning opening actuator such as an electromagnetic solenoid or a stepping motor. The relationship between the winning, the game, and the prize ball payout is determined by controlling the main controller 1 for electrically controlling the entire game of the pachinko machine, and electrically controlling the ball payout mechanism 11 by an electric instruction from the main controller 1. Is controlled by the ball payout control device 10.

A game ball fired by a player's operation wins one of a plurality of winning holes, and a winning detection switch 5 outputs a winning ball detection signal to the main controller 1 when the winning ball is detected.
As a result, first, the main controller 1 determines which of the plurality of winning ball detection switches 5 the winning ball detection signal is input from, and determines the number of payout ball payouts corresponding to the determined winning ball detection signal. Is extracted from a plurality of award ball instruction payout numbers set in the main control device 1, and a command including the award ball instruction payout number is generated.

The relationship between the command generated by the main controller 1 and the number of awarded ball instruction payouts will be described. The command is 8 bits, and the most significant bit D7 is the type of the command. If the most significant bit D7 is "0", the command is a winning ball instruction command. 1 to 127 combinations of the least significant bit D0 to the seventh bit D6 in the prize ball instruction command
Shows the prize ball instruction payout number up to the number. The relationship between the prize ball instruction payout number and the command is, for example, 1 to 127 prize ball instruction payout numbers, that is, the prize ball instruction payout number represented by a decimal number of 2
Converted to a decimal number and expressed. The relationship between the command decoded by the ball payout control device 10 (decrypted command) and the winning ball instruction payout number is also set to be the same as the relationship between the command of the main control device 1 and the winning ball instruction payout number.

The microcomputer of the main controller 1 has an encryption algorithm 12 for encrypting commands. The cryptographic algorithm 12 is for performing an arithmetic operation on a command, and is an arithmetic operation process composed of a microprogram described in a ROM of a microcomputer. Arithmetic operation processing is performed by an arithmetic unit (AL
U). The encryption method is called an encryption algorithm 12, and an encryption method called Caesar encryption, for example, "adding a predetermined value N to M prize ball instruction commands" is the encryption algorithm 12. In this case, the encrypted encrypted command is the “M + N award ball instruction command”, and the key for decrypting the encrypted command has a predetermined value N. In this embodiment, it is a common key encryption,
A key having a predetermined value N is set in the main controller 1 in advance, and a key having the same value as the key of the main controller 1 is set in the ball payout controller 10. The encryption algorithm 12 other than addition includes:
Subtraction, accumulation, division, a combination of four arithmetic operations, bit replacement, bit shift, and the like can be considered. The encrypted command is output from the main controller 1 to the ball payout controller 10 via the wiring 3.

The data transfer (fetch) between the main controller 1 and the ball payout controller 10 will be described. Main controller 1
Then, when transmitting the encrypted command, the command data D
After executing the combination of 0 to D7 to be transmitted, the ENABLE signal switches from the high level to the low level a predetermined time after the change of the combination of the command data D0 to D7. The ball payout control device 10 reads the command data D0 to D7 at a timing when a predetermined time different from the above elapses from the timing when the falling of the ENABLE signal from the high level to the low level is detected. ENAB
The LE signal switches from the low level to the high level after a lapse of a predetermined time longer than the sum of the two predetermined times described above, and prepares for transmission of the next command data.

The microcomputer of the ball payout control device 10 has a decryption algorithm 13 for decrypting the read encrypted command. The decryption algorithm 13 performs an arithmetic operation paired with the arithmetic operation performed on the command,
The encrypted command is decrypted into a decrypted command. The decryption command is identical to the command and is restored to the original command. The decoding algorithm 13 is an arithmetic operation process composed of a micro program described in a ROM of the microcomputer. Arithmetic operation processing is performed using an arithmetic unit (ALU) in the microcomputer. The decryption method is called a decryption algorithm 13, and a common key such as "subtract a predetermined value N from the M + N prize-ball instruction commands" for decrypting the encrypted command "M + N prize-ball instruction commands" is used. The decoding method used is the decoding algorithm 13, and the decoded command is "M prize ball instructions". Thus, the decryption algorithm 13
Means that when a predetermined value is added to a command as an encryption process, a predetermined value of the same value is subtracted from an encrypted command as a decryption process, and when a predetermined value is subtracted from a command as an encryption process, decryption is performed As a process, a paired process with encryption is performed such that a predetermined value of the same value is added to the encrypted command. It can be understood that decoding algorithms other than addition and subtraction include integration, division, a combination of four arithmetic operations, bit replacement, and bit shift.

After executing the decryption processing of the encrypted command, the ball payout control device 10 executes a validity determination processing for determining whether or not the decryption command is valid. In the validity determination process, it is determined whether or not the result of decoding the decoded command (machine command, that is, 8-bit data) matches a command (assembly command) stored in the ball payout control device 10 in advance. If the determination result indicates validity, the ball payout control device converts the winning ball instruction payout number in the command from the command data, and electrically controls the ball payout mechanism 11 based on the winning ball instruction payout number. As a result, M prize balls are paid out from the ball payout mechanism 11 to the upper plate device. If the determination result is invalid, the ball payout control device 10 does not execute the control of the ball payout mechanism 11 and enters an error state.

The encryption algorithm 12 is formed in the microcomputer of the main control unit 1 even when it is constituted by hardware. The reason is that, when an integrated circuit having a built-in encryption algorithm is externally attached to the microcomputer of the main controller 1, an encryption command input to an input terminal of the integrated circuit and a decryption command output from an output terminal are output. Is measured, the encryption algorithm 12 and the command can be analyzed. It will be understood that the decoding algorithm 13 is formed in the microcomputer of the ball dispensing control device 10 for the same reason.

When the encryption algorithm 12 is constituted by hardware in the microcomputer of the main controller 1, an adder, a two's complementer and a shift register, ie, AN
It is composed of a logical operation circuit such as a D circuit, an OR circuit, and a NOT circuit. For example, in the case where "any one or more or all or all of the command data D0 to D7 is denied" as the encryption algorithm 12, a NOT circuit corresponding to the encryption algorithm 12 is provided by the microcomputer of the main control device 1. May be provided on the output side of the output interface. According to this, encryption can be performed without being affected by the clock cycle of the microcomputer. In this case, the time required for encryption is the response time of the NOT circuit. As a configuration of the ball payout control device 10 in this case, a NOT circuit may be provided on the input side of the input interface in the microcomputer of the ball payout control device 10 in correspondence with the NOT circuit of the main control device 1.

Referring to FIG. 2, overall control of the gaming machine will be described. In the case of the first embodiment, the control device of the gaming machine includes functions of the main control device 1, the ball payout control device 10, the symbol control device 14, the indicator light control device 15, the sound control device 16, the ball launch control device 17, and the like. Separated separately. These control devices 1; 10; 14; 15; 16; 17 individually include microcomputers each comprising a CPU, a ROM, and a RAM. The ball payout control device 10, the symbol control device 14, the ball firing control device 17, the sound control device 16, and the indicator light control device 15 constitute the slave control device 2. The ball dispensing mechanism 11, the symbol display 18, the ball launching mechanism 19, the speaker 20, and the indicator light 21 constitute the operating mechanism 9.

The microcomputer of the main controller 1
When a winning ball detection signal from the winning ball detection switch 5 is input via the wiring 4 and the input interface, the CPU
Executes a general game process such as input process, error process, symbol control process, prize ball control process, external information processing, etc. by using the program set in the ROM as the storage means of the process, and the process result Through the output interface and wiring 8; 25; 26; 27;
It controls the ball payout mechanism 11, the symbol display 18, the indicator light 21, the speaker 20, the ball launching mechanism 19, and the like. Symbol display 1
8, the ball payout mechanism 11, the indicator light 21, the speaker 20 and the ball launching mechanism 19 are each connected to the main controller 1 by the wiring 3;
2, a ball payout control device 10, a symbol control device 14, each separately provided with a microcomputer that executes a control operation with a command obtained by decrypting an encrypted command output in one direction as a control signal via 23; Indicator light control device 1
5. The drive is individually controlled by the sound control device 16 and the ball launch control device 17. The wirings 3, 22, 23, and 24 are each composed of eight D0 to D7 and one ENABLE 9
A total of ten wirings 3; 22, 23, and 24, each of which includes one signal line and one ground line, are individually illustrated by one solid line in a generic form.

In the microcomputer of the symbol control device 14, when the encrypted command from the output interface of the main control device 1 is input via the wiring 22 and the input interface, the CPU decrypts the encrypted command to be decrypted. The symbol display control process is executed using the program set in the ROM by the command as the storage means of the processing process using the RAM, and the symbol display 18 is electrically driven through the output driver and the wiring 25. Symbol control device 14
The types of commands decoded in are: demo display, left symbol variation start, middle symbol variation start, right symbol variation start, left symbol variation stop (stop symbol instruction), middle symbol variation stop (stop symbol instruction), right There are a symbol change stop (stop symbol instruction), a big hit determination display, a big hit display, a special winning opening switch winning display, a big hit end display, a count error display, a prize ball error display, and the like.

When the encryption command from the output interface of the main control device 1 is input via the wiring 23 and the input interface, the microcomputer of the indicator light control device 15 causes the CPU to decrypt the encryption command and decrypt it. The display lamp control process is executed by using the RAM set as the storage means of the process in accordance with the program set in the ROM by the input command, and the display lamp 21 such as the side lamp or the top lamp of the pachinko machine, the lamp windmill or the prize ball lamp.
Are electrically turned on, blinked, and turned off via the output driver and the wiring 26. The command types decoded by the indicator light control device 15 include a demo display, a special symbol change display, a reach (left, middle symbol match) display, a big hit determination display, a big hit display, a big hit end display, an error display, Special winning opening winning indicator light on, specific winning opening winning indicator light off, 1 hold storage indicator light, 2 hold memory indicator lights, 3 hold memory indicator lights
There are an individual display, four hold storage indicator lights, all hold memory indicator lights off, award ball indicator lights on, award ball indicator lights off, completion indicator lights on, completion indicator lights off, and the like. The above-mentioned indicator lamps 21 include a jackpot indicator lamp which is lit at the time of a big hit, a prize ball indicator lamp which is lit during the payout of a prize ball, a completion indicator lamp which is lit when the replenishment ball of the tank is exhausted, and a side lamp which is used as a decoration effect of a game. , A second game decoration effect indicator such as a center role lamp for a game decoration effect, and a third game decoration such as a variable winning opening side lamp for a game decoration effect. There are an effect indicator light, a specific winning opening winning indicator light that is turned on when a ball wins a specific winning opening in the variable winning opening, a hold storage indicating light that displays up to four winning storage numbers in the symbol starting opening, and the like.

In the microcomputer of the sound control device 16, when the encryption command from the output interface of the main control device 1 is input via the wiring 24 and the input interface, the CPU decrypts the encrypted command and decrypts it. The sound control process is executed by using the RAM set as the storage means of the process in accordance with the command set in the ROM, and the sound source IC converts the sound data set in the ROM into a sound signal based on the execution result. , An amplifier amplifies the sound signal, and a speaker 2 provided in the gaming machine.
0 is electrically driven through the wiring. The command types decoded by the sound control device 16 include a symbol starting opening winning sound,
There are special symbol fluctuation sound, reach sound, special symbol stop sound, big hit decision sound, big hit middle sound, big hit end sound, error sound and the like.

The ball launching controller 17 operates the handle of the ball launching mechanism 19 by the player in a state where the firing permission is input from the main controller 1 via the ball payout controller 10 so that the ball launching mechanism 19 is operated. Control for driving a ball launching actuator such as an electromagnetic solenoid or a stepping motor according to the operation amount of the steering wheel. A hall computer (not shown) installed for business management in a pachinko parlor is connected to the gaming machine via wiring. The hall computer collects information from a plurality of gaming machines installed in pachinko parlors and compiles the information. Types of information output from the gaming machine to the hall computer include jackpot information, special symbol actuation frequency information, symbol start switch winning information, prize ball information, supply request information, and the like.

According to the first embodiment, when a prize ball detection signal is input from the prize ball detection switch 5 via the wiring 4 to the prize ball detection switch 5, the main controller 1 sets the prize ball instruction payout number corresponding to the prize ball detection signal. Is generated, and the command is encrypted by the encryption algorithm 12. The encrypted command is input from the main controller 1 to the ball payout controller 10 via the wiring 3. When the encrypted command is input, the ball payout control device 10 decrypts the encrypted command with the decryption algorithm 13 and determines whether or not the decrypted command is valid. In this case, the ball payout mechanism 11 is electrically controlled via the wiring based on the winning ball instruction payout number decoded by the command. The ball payout control device 10 stops controlling the ball payout mechanism 11 in the case of an invalid determination result. As a result, the command is encrypted and transmitted together with the ENABLE signal from the main controller 1 to the slave controller 2 via the wiring 3, so that the analysis of the command becomes complicated, and an unauthorized operation of the command data due to an unauthorized remodeling or the like is prevented. In particular, in the ball payout control device 10, it is difficult to perform illegal operations such as the number of balls in the prize ball instruction command. As described above, security can be improved without communication of the encryption key between the main control device 1 and the slave control device 2.

FIG. 3 shows a game control device according to a second embodiment of the present invention. The main control device 31 has a plurality of encryption algorithms 3
32c; 32n; and an encryption counter 33. The slave controller 34 has a plurality of decoding algorithms 35
35b; 35c... 35n and a decoding counter 36. Each of the encryption algorithms 32a to 32n is paired with each of the decryption algorithms 35a to 35n. The encryption counter 33 has encryption algorithms 32a-3
A value equal to or greater than the number 2n is cyclically counted, and the count value is incremented every time an encrypted command is transmitted, that is, each time an ENABLE signal is output. The decoding counter 36 cyclically counts a value equal to or greater than the number of the decoding algorithms 35a to 35n, and counts up the count every time a decoding command is received, that is, every time an ENABLE signal is input. Then, the main controller 31 encrypts the command with one encryption algorithm selected based on the encryption counter value and outputs the command to the slave controller 34. The slave controller 34 selects the command based on the counter value of the decryption counter corresponding to the encryption counter. The command received from the main controller 31 is decoded by one decoding algorithm. According to this, each time the main controller 31 transmits the encryption command, the encryption algorithm sequentially changes,
Each time the slave controller receives the encrypted command, the decryption algorithm changes according to the encryption algorithm.
Further security is improved.

Referring to FIG. 4, the encryption processing and transmission processing performed by main controller 31 will be described. In 401, it is determined whether or not the encryption counter 33 is at the upper limit. That is,
The count value of the encryption counter 33 is equal to the encryption algorithm 32a-
It is determined whether the number is greater than 32n. If the result is that the encryption counter 33 has the upper limit value, the encryption counter 33 is initialized in 402, that is, the count value is set to zero. 403 if the result of the encryption counter 33 is not the upper limit value
As shown at 406, one of the encryption algorithms 32a to 32n is selected based on the count value of the encryption counter 33, and the command is encrypted. Encrypted command and ENA
The BLE signal is output to the slave controller 34 via the wiring 3 by the above-described fetch. The count value of the encryption counter 33 is 1
And returns to 401.

The receiving process and the decoding process performed by the slave control device 34 will be described with reference to FIG. At 501, it is determined whether or not the decoding counter 36 has reached the upper limit. That is,
When the count value of the decoding counter 36 is equal to the decoding algorithm 35a-
It is determined whether the number is larger than 35n. Decryption counter 3
If the result is that the upper limit is 6, the decoding counter 36 is initialized at 502, that is, the count value is set to zero. If the result of the decryption counter 36 is not the upper limit value, as indicated by 503 to 506, the encryption command is received by the above-described fetch upon receiving the ENABLE signal, and 504
And the decoding algorithm 35a based on the count value of the decoding counter.
To 35n, and decrypts the encrypted command. One is added to the count value of the decoding counter 36, and 50
Return to 1.

The case where the count-up operation of the count value is triggered by the transmission of the encryption command by the encryption counter 33 and by the reception of the encryption command by the decryption counter 36 has been described. The trigger of the up operation is when the number of times of transmission of the encryption command reaches a predetermined number of times or more, that is, when the number of times of output of the ENABLE signal reaches a predetermined number of times or more, and the count of the decryption counter 36 increases accordingly. The operation may be triggered when the number of times the decryption command is received becomes a predetermined number of times or more, that is, when the number of times the ENABLE signal is input becomes a predetermined number of times or more. Further, the trigger of the count-up operation of the encryption counter 33 may be every transmission of a predetermined encryption command, and accordingly, the trigger of the count-up operation of the decryption counter may be each reception of a predetermined encryption command.
In any case, when the count value reaches the upper limit value, the count value is returned to the initial value, that is, zero.

The count-up operation of the encryption counter 33 is triggered at predetermined time intervals.
The count-up operation of No. 6 is set at every predetermined time equal to the predetermined time, and the encryption counter 33 and the decryption counter
May be synchronized. The timer device that forms the predetermined time may be a hard timer system that divides a clock signal for a reference count necessary for the operation of the computer of the main control device 31 and the sub control device 34, or that each time data is A software timer method may be used in which the data is stored in a predetermined RAM area and is decremented for each reset interrupt configured to be generated at a predetermined cycle by software (time data = number of reset interrupts × time interval of reset interrupt).

A wiring for a reset signal is further provided on the wiring 3 connecting the main control device 31 and the slave control device 34, a reset signal is output at predetermined time intervals, and the encryption counter 33 and the decryption counter 36 are synchronized. Is also good. This reset signal may be combined with the aforementioned timer device.

Although the control device for a game machine such as a pachinko machine has been described, the present invention can also be applied to a control device for a game machine such as a slot machine. That is, the winning ball detection switch 5 may be read as a ball insertion switch device, a game start switch device, or a symbol stop switch device, and accordingly, the winning ball detection signal may be read as a ball insertion signal, a game start signal, or a symbol stop signal.

For example, the overall configuration of a ball type slot machine using a ball as a game medium will be described, but the present invention is also applicable to a medal type slot machine. The slot machine includes a symbol recognition area formed on a panel made of glass or a synthetic resin, a symbol indicator disposed on the back side of the symbol recognition area, an upper plate device provided below the symbol recognition region, and an upper plate device. A lower plate device disposed below the lower plate device. A plurality of hit lines are displayed in the symbol recognition area. In the upper plate device,
Game start switch device, multiple symbol stop switch device,
A ball input switch device is provided. The symbol stop switch device corresponds to the symbols in the three rows of the symbol display.

Referring to FIG. 6, the overall control of the slot machine will be described. The control device of the slot machine includes a main control device 41, a ball payout control device 42, a symbol control device 43,
It is divided according to the functions of the indicator light control device 44, the sound control device 45, the ball capture control device 46, and the like. These control devices 41 to
Reference numeral 46 separately includes a microcomputer including a CPU, a ROM, and a RAM. The ball payout control device 42, the symbol control device 43, the indicator light control device 44, the sound control device 45, and the ball take-in control device 46 constitute a slave control device 47. Ball payout mechanism 48, symbol display 49, indicator light 50, and speaker 5
1 and the ball taking-in mechanism 52 constitute an operating mechanism 53. The main controller 41 and the ball payout controller 42 are connected by a wire 54, the main controller 41 and the symbol controller 43 are connected by a wire 55, and the main controller 41 and the indicator light controller 44 are connected by a wire 56. The main control device 41 and the sound control device 45 are connected by a wire 57, and the ball payout control device 42 and the ball capture control device 46 are connected by a wire 58. Wiring 54-58
Is composed of nine signal lines each composed of eight D0 to D7 and one ENABLE and one ground line, and a total of ten wirings 54 to 58 are collectively referred to individually as one solid line. Illustrated.

The microcomputer of the main control device 41 detects the number of times the ball throw-in switch device 59 has been operated by the player, and executes a ball catching control process based on the detection result. Then, the ball capture command as a control processing result from the main control device 41 is encrypted and then output to the ball capture control device 46 via the ball payout control device 42, and decrypted by the ball capture control device 46. After being output to the ball capturing mechanism 52, the ball capturing mechanism 52 captures the number of balls according to the number of times of operation of the ball input switch device 59 into the slot machine. For example, in a state where a ball is placed in the upper plate device, five balls are pressed when the player presses the ball input switch device 59 once, ten balls are pressed two times, and one ball is pressed three times.
Five balls are thrown into the slot machine from the ball slot of the upper plate device.

The main control device 41 is a game start switch device 6
It detects that 0 has been operated by the player, and executes a symbol variable control process based on the detection result. Then, the symbol variable start command as a control processing result from the main control device 41 is encrypted and then output to the symbol control device 43,
After being decoded by the symbol control device 43 and output to the symbol display 49, the three symbol display mechanisms of the symbol display 49 are individually driven. Therefore, when the player operates the game start switch device 60, the symbols in the three rows of the symbol display are changed from top to bottom.

The main controller 41 has a symbol table.
Then, at the timing when the game start signal is input from the game start switch device 60 to the main control device 41, the main control device 41 determines a random number by a cyclic counter, and compares the determined random number with a symbol table to perform a symbol game. The lottery of the hit or miss. Then, based on the timing at which the symbol stop signal is input from the symbol stop switch device 61 to the main controller 41, the main controller 41 determines whether or not to follow the lottery result. In a state in which the winning is determined by a winning lottery, if the input timing of the symbol stop signal is taken in a predetermined range based on the selected winning symbol, the main controller 41 A symbol hit stop command as a control processing result is output after being encrypted, and is decrypted by the input symbol control device 43, and then the three symbol display mechanisms of the symbol display 49 are individually hit and stopped and controlled to the symbol. You. In addition, even if the winning is determined by a lottery, if the input timing of the symbol stop signal is not taken in the above range, the symbol stop command as a control processing result from the main control device 41 is issued. Are output after being encrypted, and are decrypted by the input symbol control device 43, and then the three symbol display mechanisms of the symbol display 49 are individually disengaged and the symbols are controlled to stop. Further, in a state where the lottery is selected by the random lottery, the main controller 41 encrypts the symbol-stopping command as a control processing result from the main controller 41 regardless of the input timing of the symbol stop signal. The symbols are then output and decoded by the input symbol control device 43, and then the three symbol display mechanisms of the symbol display 49 are individually disengaged and the symbols are controlled to stop.

The main controller 41 hits the main controller 41 and stops at the set symbol set as a symbol such that the three symbol columns of the symbol indicator 49 hit and stop at the symbol combination. The ball payout control process is executed. Then, the small hit prize ball instruction command, the middle hit prize ball instruction command, or the big hit prize ball instruction command as a control processing result from the main control device 41 is encrypted and then output to the ball payout control device 42, and the ball payout control is performed. After being decoded by the device 42 and output to the ball payout mechanism 48, the ball payout mechanism 48 pays the prize balls of the number of balls corresponding to the small hit, the medium hit, and the big hit to the upper plate device from the slot machine. put out.

The indicator light control device 44 turns on or blinks each indicator light 50 provided around the symbol recognition area, turns on the number indicator of the hit line, or turns on the display unit that displays the number of hits. For example, a control signal is output by a computer to a display light, a count display light, a display unit, or the like. The command types decoded by the indicator light control device 44 include a ball insertion instruction display, a line-per-line display, a line-per-line display, a line-per-line display, a line-per-line display, a standby instruction display, a game start instruction display, a symbol change display, There are a small hit determination display, a middle hit determination display, a big hit determination display, a big hit middle display, a big hit end display, a re-game instruction display, a number display, and the like.

The sound control device 45 performs a control process by a computer for generating a sound effect or the like from a speaker provided in a front frame according to a control signal from the main control device 41, and a drive signal as a result of the process is connected to a wire. Output to the speaker 51. The types of commands decoded by the sound control device 45 include a ball throwing sound, a hit line setting sound, a symbol change start sound,
There are a symbol change middle sound, a symbol stop sound, a small hit determination sound, a middle hit determination sound, a big hit determination sound, a big hit middle sound, a big hit end sound, and the like.

In the first embodiment, the Caesar encryption such as “shift by n characters” is applied. However, as another common key encryption, single character substitution encryption can be applied to the first embodiment, and the other table encryption is applied to the second embodiment. Applicable to In the single-character substitution cipher, the same conversion table is provided in the main controller 1 and the slave controller 2, and the command of the main controller 1 is replaced (encrypted) with another command using the conversion table of the master controller 1. Output to the control device 2,
This is a method of returning from another input command to a command of the slave control device 2 using the conversion table of the slave control device 2, and the conversion table is a common key. Multi-table encryption is a method of encrypting using a plurality of keys. For example, there is a method of preparing three Caesar ciphers “shift by n characters”, “shift by p characters”, and “shift by q characters”, and encrypts one command at a time using three keys in order.

The DES encryption of the common key encryption that has been put into practical use is also applicable. The DES encryption reads data from the plaintext in 64-bit units, converts the data into 64-bit encryption, and outputs the data. The common key also has 64 bits, of which 8 bits are parity data for detecting a data error, and the effective length of the key is 56 bits. The detailed processing contents of the DES encryption and decryption deviate from the gist of the present application, and thus the description is omitted.

As the public key encryption, RSA encryption can be applied. The RSA encryption uses a key composed of two public keys and a secret key. The public key is dedicated to encryption, and the main controller 1;
31; 41 are set. The private key is for decryption only,
Slave control device 2; 34; 47 are set. The RSA encryption utilizes the difficulty of factoring the prime number, and it is necessary to factorize the value of the public key in order to decrypt the encryption. The detailed processing contents of the RSA encryption and decryption deviate from the gist of the present application, and thus the description is omitted. ElG as other public key cryptography
Amal encryption, elliptic curve encryption, reciprocal encryption and the like can be applied.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a gaming machine control device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing overall control of the pachinko machine of the embodiment.

FIG. 3 is a configuration diagram showing a gaming machine control device according to a second embodiment of the present invention.

FIG. 4 is a flowchart of the main control device of the embodiment.

FIG. 5 is a flowchart of the slave control device of the embodiment.

FIG. 6 is a configuration diagram showing overall control of a slot machine of another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 master control device 2 slave control device 12 encryption algorithm 13 decryption algorithm 32a to 32n encryption algorithm 33 encryption counter 35a to 35n decryption algorithm 36 decryption counter

Claims (2)

[Claims] 1. A game control device is divided into a master control device and a slave control device, wherein the master control device has an encryption algorithm,
The slave controller has a decryption algorithm paired with the encryption algorithm, the master controller encrypts the command with the encryption algorithm and outputs the command to the slave controller, and the slave controller decrypts the command received from the master controller. A game control device characterized by the following. 2. The game control device is divided into a master control device and a slave control device, wherein the master control device has an encryption counter and a plurality of encryption algorithms, and the slave control device has a decryption counter and a plurality of decryption algorithms. And each of the encryption algorithms and each of the decryption algorithms are paired,
The master controller encrypts the command with one encryption algorithm selected by the encryption counter value and outputs the command to the slave controller, and the slave controller uses the one encryption algorithm selected by the counter value of the encryption counter and the corresponding operation of the decryption counter. A game control device wherein a command received from a main control device is decoded.