WO2024029768A1

WO2024029768A1 - Method for drawing winning number from among plurality of application numbers and lottery server for performing said drawing method

Info

Publication number: WO2024029768A1
Application number: PCT/KR2023/009844
Authority: WO
Inventors: 손성원
Original assignee: 손성원
Priority date: 2022-08-02
Filing date: 2023-07-11
Publication date: 2024-02-08
Also published as: KR102529564B1

Abstract

Disclosed is a drawing method for selecting a winning number from among a plurality of application numbers. The online winning number drawing method of a lottery server, according to the present invention, presents a method which, in order to draw a winning number by applying application numbers of applicants to a public lottery machine, directly obtains a winning number by collecting, as so-called preliminary numbers, a plurality of numbers from another web page that is open to the general public before and after an application period and inputting the collected numbers into the lottery machine or finally obtains a winning number by obtaining an intermediate number for automatically calculating a winning number. According to this method: (1) the possibility of manipulation may be eliminated by revealing an application number as soon as it is input, and all of a preliminary number may not be revealed during application, and thus, an intermediate number may not be predicted; (2) the intermediate number may not be predicted, and thus, a drawing manager may not randomly calculate or predict an application number close to the intermediate number and may not input the calculated or predicted application number before or after an application period; and (3) a calculation algorithm for generating an intermediate number is a combination of the four fundamental arithmetic operations whose calculations may be checked by anyone, and thus, the intermediate number may also not be manipulated.

Description

A method of drawing winning numbers among multiple application numbers and a lottery server that performs the drawing method.

The present invention relates to a lottery method for selecting a winning number from a plurality of application numbers of online applicants.

Events where multiple people apply, such as a sweepstakes event, require a method to determine the winner, and one of them is a lottery. The most important factor in the winner drawing is fairness. For a prize draw to be meaningful, trust must be secured that the lottery process is conducted in a transparent manner. There must be no manipulation at any stage of the lottery, from application to final drawing.

In a lottery process where many unreliable people gather, one way to ensure the fairness of the lottery is to disclose the entire process. Taking lotteries as an example, among lotteries issued by printing numbers and letters, in order to determine the winner, the winning number is determined by hitting a rotating number board with an arrow in a public place or by using a device that ejects one of the numbered balls. Methods such as making decisions are used. The lottery method is completely disclosed to prevent other manipulation. However, it is difficult to have equipment and systems like lottery drawings for simple, small-scale prize drawings, or to hold controlled and open events in a way that anyone can recognize as fair. In other words, a different method is needed to ensure fairness while simply holding a prize drawing event to hand out simple prizes. No matter how simple the prize draw is, if fairness is not guaranteed, the meaning and interest of the draw will inevitably fade. There is a need for a method of drawing winning numbers, similar to a prize drawing on the Internet, that is fair and excludes the possibility of manipulation.

The purpose of the present invention is to provide a method of ultimately selecting a winning number by collecting separate preliminary numbers and generating an intermediate number in order to select a winning number from a plurality of application numbers of online applicants.

To achieve the above object, the online winning number drawing method of the lottery server according to the present invention includes an application step, a preliminary number collection step, a collection termination step, an intermediate number calculation step, and a step of determining the winning number. In the application stage, the application number collection unit of the server discloses the calculation algorithm for generating the intermediate number to a public channel and receives the applicant's application number from the applicant's terminal connected to the network. Here, the operation algorithm provides the same operation value for the same input value, and is implemented as an arithmetic algorithm that applies addition, subtraction, multiplication, and division to the preliminary numbers, or extracts each digit of the middle number from the preliminary number. It is desirable to have an algorithm that does this. Additionally, the operation algorithm may include an algorithm for changing the arrangement of digits in the pre-processing or post-processing stage.

In the preliminary number collection step, during the application process, the intermediate number generator starts collecting preliminary numbers in a previously disclosed manner, and releases them on a public channel every time a preliminary number is collected. In the collection end stage, according to a previously disclosed collection end algorithm, the application number collection unit ends the application stage and the intermediate number generator ends the preliminary number collection stage. In the intermediate number calculation step, the intermediate number generator calculates the intermediate number by applying the calculation algorithm to a plurality of preliminary numbers collected through the collection of the preliminary numbers. In the winning number determination step, the winning management department determines the winning number among the collected application numbers in the order of the difference between them and the middle number.

Use the application number as a preliminary number

Depending on the embodiment, the application number entered by the applicant may be used as a preliminary number. For this purpose, in the online winning number drawing method of the present invention, in the application step, the application number collection unit receives the application code a1 and application code b from the applicant's terminal, and in the preliminary number collection step, the intermediate number generator receives the application code a1 and application code b are provided from the application number collection department and disclosed on the public channel. Here, the application code a1 is the application number encrypted with a preset irreversible encryption code, and the application code b combines a part of the application number and a part of the application code a1.

In addition, the step of calculating the intermediate number includes: the intermediate number generator receives the application number from the terminal, encrypts it with the encryption code, generates an application code a2, and compares whether it matches the application code a1; If the application code a1 and the application code a2 match, the intermediate number generator determines that the application number provided from the terminal is the same as the application number entered in the application step and discloses the application number provided from the terminal; ; It further includes the step of confirming the entire application number of the applicant by repeating the step of comparing and disclosing the application number for all applicants, and applying the calculation algorithm to the entire confirmed application number to obtain the intermediate number. can be calculated.

Collect spare numbers from external servers

Depending on the embodiment, numbers disclosed to the general public on an external server may be used as spare numbers.

To this end, the spare number collection step includes: the intermediate number generator disclosing information about a plurality of external servers that will receive the spare number through the public channel; The intermediate number generator may receive the preliminary numbers simultaneously or sequentially from the plurality of external servers, and collect the last preliminary number after the application step is completed. The information about the external server includes the number to be used as the spare number and the time of disclosing the number to be used as the spare number among the public information disclosed by the external server.

Meanwhile, the present invention also extends to a lottery server that performs the above winning number drawing method.

The lottery method according to the present invention is a method of collecting the application numbers of applicants and then drawing the winning number using a public lottery machine. The lottery machine calculates the winning number by inputting a plurality of preliminary numbers that are open to the public and are not susceptible to manipulation. For example, by using numbers that are not susceptible to manipulation, such as lottery numbers or real-time exchange rate information, as spare numbers, the possibility of manipulation is eliminated while retaining the randomness of the lottery. The number calculated by the lottery machine may become the winning number, or the number calculated by the lottery machine may become the middle number and the winning number may be automatically calculated from the middle number. Because the calculation algorithm used by the lottery machine is a combination of four basic calculations that anyone can calculate, the winning number or middle number cannot be manipulated.

The application number entered by the applicant to win can be used as a preliminary number. According to the present invention, (1) before the application number is confirmed as an application number set, all or part of the application number is encrypted and disclosed, so the application number cannot be manipulated. There are no numbers, and the entire application number is not disclosed, so the middle number cannot be predicted. (2) Since the middle number cannot be predicted, the lottery server administrator cannot commit fraud by predicting a number close to the middle number right before the application period and entering it as the application number. Since part of the applicant's application number is public, the application number cannot be manipulated for fraudulent purposes. (3) If an algorithm that can be calculated by anyone, such as a combination of four arithmetic operations, is used as the calculation algorithm for generating the middle number, the middle number cannot be manipulated.

A number disclosed to the public by an external server other than the lottery server that performs the lottery of the present invention can be used as a spare number. In this case as well, (1) the application number is disclosed as soon as it is entered to eliminate the possibility of manipulation, and since all preliminary numbers are not disclosed during application, the intermediate number cannot be predicted. (2) Since the middle number cannot be predicted, the lottery administrator cannot arbitrarily calculate or predict the middle number as a close application number and enter it before or after the application period. (3) Because the calculation algorithm for generating the middle number is a combination of four arithmetic operations that anyone can calculate, the middle number cannot be manipulated.

1 is a block diagram of a lottery system according to an embodiment of the present invention;

Figure 2 is a flowchart provided to explain a method of drawing winning numbers in a lottery system according to an embodiment of the present invention, and

Figure 3 is a flowchart provided to explain a method of drawing winning numbers in a lottery system according to another embodiment of the present invention.

The present invention will be described in more detail below with reference to the drawings.

Referring to Figure 1, the lottery system 100 of the present invention includes a lottery server 110 and an entrant terminal 130 connected to the network 10. The lottery server 110 and the applicant terminal 130 are connected to each other through the network 10. Depending on the embodiment, the lottery system 100 may further include at least one external server 150 to provide a spare number.

The drawing method of the lottery system 100 of the present invention is basically a method of drawing the winning number by applying the application numbers of the applicants to a public lottery machine. In the present invention, the lottery machine uses an 'operation algorithm' that is open to the general public or at least to the entrants. The 'operation algorithm' cannot use a random number generator and must always provide the same operation value for the same input value. The result of the calculation algorithm (lottery machine) may be the winning number, but there are cases where it is not the winning number, so the result of the calculation algorithm is called the 'intermediate number'. In other words, the middle number may become the final winning number, or another number that has a certain relationship with the middle number may automatically become the winning number. Application numbers (a set of application numbers) can be entered into the calculation algorithm, but other numbers that are disclosed to the general public by the external server 150 during the application period or after the application period but before the intermediate number is generated can also be entered. For distinction, the numbers entered into the calculation algorithm of the lottery machine for the purpose of generating intermediate numbers are called 'preliminary numbers'. To eliminate the possibility of manipulation, the number generated by the lottery server 110 itself cannot be used as a spare number. Therefore, the preliminary number must use the application number provided by the applicant terminal 130 or the number provided from the external server 150 described below.

For convenience of explanation, the entire lottery process will be briefly explained first. (1) Before starting the lottery, various conditions and methods related to the lottery are first disclosed to the entrants, and (2) application numbers are collected from the entrants. (2) Collect spare numbers needed to create intermediate numbers. The preliminary number may be an application number or a number provided by the external server 150, or the application number and a number provided by the external server 150 may be used together. (3) Once the collection of application numbers and preliminary numbers is complete, the preliminary numbers are applied to the calculation algorithm to generate an intermediate number. (4) When the middle number appears, the winning number is automatically determined among the application numbers according to a previously disclosed method. Here, not only are all lottery methods, including the calculation algorithm, disclosed in advance, application numbers and preliminary numbers disclosed, but also measures are included to eliminate the possibility of manipulation.

The applicant terminal 130 may be a dedicated terminal for applications, but the user's mobile phone, smart phone, personal computer, etc. may be used. In the explanation below, the 'applicant terminal 130' may simply be indicated as 'applicant', and even in this case, it should be understood as an operation through the applicant terminal 130.

The entrant terminal 130 is equipped with a client unit (not shown) for performing the drawing method of the present invention, and the operations of the entrant terminal 130 described below should be understood as the operations of the client unit (not shown). . The client unit (not shown) may be implemented as a hardware configuration of the entrant terminal 130, or may be implemented in the form of software stored in the memory of the entrant terminal 130.

When the client unit is implemented as software, the client unit is a set of instructions or an application that is processed by the hardware processor and operating system software possessed by the applicant terminal 130 and performs the functions of the client unit. Hereinafter, when the entrant terminal 130 is not a device dedicated to the present invention, the operation of the entrant terminal 130 should be understood as an operation performed by executing a client unit, which is a set of instructions or an application.

The applicant terminal 130 receives the application number from the applicant and provides it to the lottery server 110. There are many different ways to provide the application number to the lottery server 110. For example, the entrant terminal 130 can access the web page provided by the lottery server 110 and input the application number. Applicants check various information on the lottery process, application number, winning number, etc. through the public web page (hereinafter referred to as public channel) provided by the lottery server 110.

Alternatively, the applicant terminal 130 stores the application number entered by the user in its own memory (not shown), encrypts the application number with an encryption code described below, and provides it to the lottery server 110.

The external server 150 is a service that provides services not directly related to the lottery method of the present invention, and is a server that discloses various information to the general public for its original service. Information disclosed by the external server 150 must include a number consisting of a series of numbers (hereinafter referred to as a service number), and one of the service numbers is used as a spare number. For example, the server of the public opinion polling agency may be an external server 150, and the results of a specific survey (all or part of the number) that the public opinion polling organization discloses through its own web page can be a preliminary number. there is. When using the results of a public opinion poll as a preliminary number, for example, the 3 digits after the decimal point of the results of the public opinion poll on 00/00 in the Seoul area are used as the preliminary number. The winning numbers provided by an external server that manages the lottery, the weather or precipitation on a specific day in a specific area provided by the Korea Meteorological Administration, or the sales volume of a specific product on a specific date from a specific sales server can also be spare numbers.

The lottery server 110 receives an application number from the applicant terminal 130, discloses the winning number, and selects a winning number (or draws a winning number) from a plurality of application numbers input from the applicant terminal 130. The lottery server 110 may receive an application number and provide a web page that discloses the winning number. For this purpose, the lottery server 110 includes an application number collection unit 111, an intermediate number generator 113, and a winning management unit 115.

The application number collection unit 111 discloses all information about the winning number lottery, including the calculation algorithm for generating intermediate numbers, through a public channel, and then collects the application number from online applicants accessed through the network 10 during the application period. receives input. The application number is a multi-digit number (e.g. 8 digits) (e.g. 12312346). Here, the 'public channel' may be any channel through which the lottery server 110 discloses various information about the lottery process to the general public or at least to all applicants. For example, the lottery server 110 may use the entrant terminal 130 or a web page opened so that the general public can access and check information as a public channel.

The intermediate number generator 113 collects a plurality of spare numbers using a previously disclosed method, discloses the collected spare numbers to a public channel, and calculates the intermediate number by applying the collected plurality of spare numbers to a calculation algorithm.

The 'operation algorithm' must provide the same operation value for the same input value, and something that outputs a different value every time, like a random number generator, cannot be used. For example, the four arithmetic algorithm that generates one intermediate number by applying addition, subtraction, multiplication, and division to preliminary numbers can be used as an 'operation algorithm'. For example, the sum of all preliminary numbers is output as an intermediate number. Alternatively, the value of the largest spare number can be subtracted from A, which is the sum of all spare numbers, or the value multiplied by the number of spare numbers in A can be output as an intermediate number.

In addition, it is possible to perform preprocessing by applying an array change operation that changes the number of digits of the preliminary numbers and then perform the four arithmetic operations, or apply the array change operation to the results of the four arithmetic operations. For example, an array change operation may combine at least one of ascending/descending sorting, a shift operation to move digits to the left or right, rotation, and digit exchange. Rotation means changing the number of digits, such as moving the first digit of the reserve number three spaces to the left if the first digit is odd, and moving it three spaces to the right if the first digit is even.

Alternatively, an intermediate number can be generated by combining preliminary numbers without applying the four arithmetic operations. At this time, the calculation algorithm is applied to extract the number to be used for each digit of the middle number from the preliminary number, and an array change that changes the number of digits can be applied as needed. In this case, there is no need to apply the four arithmetic operations. For example, if the temperature on 00/00 in the Seoul area, the winning number provided by an external server that manages the lotto, the sales volume of a specific product on a specific date from a specific sales server, and the number of applicants are collected as preliminary numbers, the calculation algorithm Preprocessing is performed to create a six-digit number by listing six numbers, including the first digit after the decimal point in the temperature, the two digits of the winning number, the two digits of the sales volume, and the last digit of the number of entrants, and then changing the arrangement. You can apply operations to create a six-digit middle number.

The winning management unit 115 determines a preset number of winning numbers using the intermediate number calculated by the intermediate number generator 113 among the collected application numbers. For example, the winning number is set as the same number as the middle number among the application numbers (i.e., the result of the calculation algorithm becomes the winning number), or, to determine multiple winning numbers, a plurality of winning numbers are selected in the order of the smallest difference from the middle number among the application numbers. Determine the winning number.

Lottery method when using the application number as a preliminary number (Figure 2)

Below, with reference to FIGS. 1 and 2, the drawing method when using the applicant's application number as a preliminary number will be described.

When using an application number as a preliminary number, all received application numbers (those numbers) must not be disclosed. If all application numbers are revealed each time an application is received, a problem arises in which the intermediate number can be calculated or predicted just before the application deadline, and an application number with a high probability of winning can be entered before the application deadline. Therefore, if an applicant's application number is used as a preliminary number, the entire application number must not be disclosed. On the other hand, since the problem of manipulation of the entire application number cannot be solved if the entire application number is made private, a method of making part of the application number public using an irreversible encryption code is used. The encryption code must be an irreversible code so that the original application number cannot be obtained from the encrypted code.

The application number collection unit 111 discloses the entire process of the lottery method of the present invention through a public channel. What is disclosed here includes the method of collecting application numbers, the calculation algorithm for generating intermediate numbers and the method of collecting preliminary numbers, the number of winning numbers, and the method of determining winning numbers using intermediate numbers (S201).

The application number collection unit 111 determines the application period according to the previously disclosed application number collection method and starts the application step of receiving the application number from the online applicant. Applicants can input at least one application number using the applicant terminal 130 according to the application number collection method (S203).

However, since the embodiment of FIG. 2 uses the application number as a preliminary number, the applicant terminal 130 does not provide the application number as is to the application number collection unit 111 but provides it to the application number collection unit 111 through step S205 below. ) is provided to.

The client unit (not shown) of the applicant terminal 130 encrypts the collected application numbers with a preset irreversible encryption code, creates application code a1 and application code b, provides them to the application number collection unit 111, and collects the application numbers. Unit 111 collects application code a1 and application code b as preliminary numbers. The application code a1 is created by encrypting the application number with a preset irreversible encryption code, and the application code b is created by combining part of the application number and part of the application code a1. For example, if the application number is set to 8 digits and is 12312346, let's assume that the application code a1 is ab95e81@gss4, which is the application number 12312346 encrypted with a preset encryption code. For example, the application code b becomes 12311@gss4 by combining the first 4 digits (1231) of the 8-digit application number and the last 6 digits (1@gss4) of the application code a1. The encryption code is an irreversible code that makes it impossible to find the application number using the application code a1. For example, SHA (Secure Hash Algorithm)-256 can be used as an encryption code.

The application code a1 is used to confirm the application number in step S209 below, and the application code b discloses part of the application number to eliminate the possibility of manipulating the application number. The intermediate number generator 113 discloses the application code a1 and application code b received from the applicant terminal 130 to a public channel, so that any person, including the administrator of the lottery server 110 as well as the applicant, can use the application number. Eliminates the possibility of manipulation and the possibility of predicting intermediate numbers in advance, as explained below.

Steps S203 and S205 are performed each time an applicant applies, and when the application termination conditions of the collection termination algorithm disclosed according to the preset application method are completed, the application number collection unit 111 terminates the application step of S203 and The number generator 113 ends collecting the spare number of S205. The collection end condition may be, for example, that the number of applicants who applied on a first-come, first-served basis reaches a preset number, or that the application period set by the period expires.

When the collection of preliminary numbers is completed, the intermediate number generator 113 receives the application number from the applicant terminal 130 as is without encrypting it. The intermediate number generator 113 encrypts the application number provided from the applicant terminal 130 with the encryption code of step S205 to generate application code a2 (S209). The intermediate number generator 113 compares whether the application code a2 matches the application code a1 and checks the application number entered by the applicant in step S203 (S211).

Since the application number provided by the applicant terminal 130 in step S209 is the application number entered by the applicant in step S203, if the application code a1 has been manipulated or the application number has not been manipulated, the application code a1 and the application code a2 must be the same. . If the application code a1 and the application code a2 match, the intermediate number generator 113 discloses the application number provided by the applicant terminal 130 without encryption in step S209 to the public channel. The intermediate number generator 113 performs this process for all application numbers and finalizes the 'application number set', which is a set of all confirmed application numbers (S213).

If the application code a1 and the application code a2 do not match, the application number provided without encryption by the applicant terminal 130 is not the application number entered by the applicant in step S203. Since the encryption code, application code a1, and application code b have already been released through public channels, manipulation cannot be involved in the application number confirmation process.

When the application number set is confirmed through step S213, the intermediate number generator 113 calculates the intermediate number by applying a calculation algorithm to a plurality of application numbers in the application number set instead of the preliminary number. The calculation algorithm provides the same calculation value for the same input value, and is not a random number algorithm. For example, an algorithm that applies a combination of the four basic operations of addition, subtraction, multiplication, and division to multiple application numbers can be an operation algorithm for generating the middle number. If the four arithmetic operations are used as the calculation algorithm, problems such as random manipulation of intermediate numbers by the administrator of the lottery server 110, etc. do not occur.

The winning management unit 115 uses the intermediate number calculated in step S215 to determine the winning number among the application numbers in the application number set according to the winning number determination method disclosed in step S201.

For example, among the application numbers, the same application number as the middle number calculated in step S215 may be determined as the winning number, or the winning number may be determined as a preset number in descending order of the absolute value of the difference from the middle number.

The winning number drawing method of the present invention is performed in the above manner. According to the method of FIG. 2, since the application number is not known until the application number is confirmed as an application number set through step (1) S213, the intermediate number cannot be predicted. (2) Since the middle number cannot be predicted, the lottery server administrator cannot commit fraud by predicting a number close to the middle number right before the application period and entering it as the application number. Since part of the applicant's application number is public, the application number cannot be manipulated for fraudulent purposes. (3) Because the calculation algorithm for generating the middle number is a combination of four arithmetic operations that anyone can calculate, the middle number cannot be manipulated.

Lottery method when collecting preliminary numbers from an external server (Figure 3)

Below, with reference to FIG. 3, a drawing method when collecting preliminary numbers from the external server 150 will be described.

Disclosure of the lottery method and collection of application numbers in the application number collection unit 111 are performed in the same manner as steps S201 and S203. However, in order to use a specific number disclosed by the external server 150 as a spare number, the number to be used as a spare number among the information about the external server 150 and the number (or public information) disclosed by the external server 150 ( Date of disclosure, name of the number, etc.) are disclosed. The number to be used as a spare number must be disclosed after the application period begins, and the last spare number collected must be disclosed after the end of the application period (S301).

The application number collection unit 111 receives application numbers from online applicants for a set period of time according to the previously disclosed application number collection method. The application stage continues until multiple application numbers are collected from multiple applicants. Applicants can enter one application number using the applicant terminal 130 according to the application number collection method. When the application number is entered, the applicant terminal 130 transmits it to the application number collection unit 111 as is without applying irreversible encryption. In this respect, S303 is different from S205. When the applicant terminal 130 transmits the application number to the application number collection unit 111, it can be encrypted with a reversible encryption code for a purpose other than that proposed in the present invention (e.g., communication security), but such encryption is not performed according to the present invention. It is not an essential configuration. Each time the application number collection unit 111 receives an application number from the applicant terminal 130, it discloses it to a public channel (S303).

The intermediate number generator 113 collects spare numbers from a plurality of external servers 150.

For example, when the Korea Meteorological Administration server sets the temperature of the Seoul area to be disclosed on a specific day during the application period as a preliminary number, the intermediate number generator 113 reads the temperature of the Seoul area on that specific day from the Korea Meteorological Administration server. In addition, the statistical information announced by organization You can also set it as a spare number.

When the collection termination conditions of the collection termination algorithm disclosed in step S301 are completed, the application number collection unit 111 ends the application step in S303 (S307), and the collection of preliminary numbers by the intermediate number generator 113 ends (S309) ). Since anyone can calculate the intermediate number once all the preliminary numbers are collected, the collection of the last preliminary number must be performed after the application number collection has ended, and the preliminary number collection ends automatically when the last preliminary number is collected.

When the collection of spare numbers is completed, the intermediate number generator 113 calculates the intermediate number by applying an arithmetic algorithm to the plurality of collected spare numbers. The calculation algorithm used here must have the same characteristics as the calculation algorithm in step S213.

The winning management unit 115 determines the winning number among the application numbers in the application number set using the intermediate number calculated in step S309, and proceeds in the same manner as step S215. The winning management unit 115 discloses the winning numbers to a public channel.

In the above method, the winning number drawing method using the spare number provided by the external server of the present invention is performed. According to the method of FIG. 3, (1) the application number is disclosed as soon as it is entered to eliminate the possibility of manipulation, and since all preliminary numbers are not disclosed during application, the intermediate number cannot be predicted. (2) Since the middle number cannot be predicted, the lottery administrator cannot arbitrarily calculate or predict an application number close to the middle number and enter it before or after the application period. (3) Because the calculation algorithm for generating the middle number is a combination of four arithmetic operations that anyone can calculate, the middle number cannot be manipulated.

In the above, preferred embodiments of the present invention have been shown and described, but the present invention is not limited to the specific embodiments described above, and may be commonly used in the technical field to which the invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

Claims

In the online winning number drawing method of the lottery server,

An application step in which the application number collection department discloses the calculation algorithm for generating the intermediate number on a public channel and receives the applicant's application number from the applicant terminal connected to the network, and the calculation algorithm provides the same calculation value for the same input value. ;

During the application process, a spare number collection step in which an intermediate number generator starts collecting spare numbers in a previously disclosed manner and discloses them to the public channel each time a spare number is collected;

According to a previously disclosed collection termination algorithm, the application number collection unit terminates the application step and the intermediate number generator terminates the preliminary number collection step;

Calculating an intermediate number by the intermediate number generator applying the operation algorithm to a plurality of spare numbers collected through the collection of the spare numbers; and

A method of drawing winning numbers, characterized in that the winning management unit determines the winning numbers among the collected application numbers in the order in which the difference between them and the middle number is smaller.
According to paragraph 1,

In the application step, the application number collection unit receives an application code a1 and an application code b from the applicant's terminal. The application code a1 is encrypted with the application number using a preset irreversible encryption code, and the application code b is the application code. It is a combination of part of the number and part of the above application code a1,

In the preliminary number collection step, the intermediate number generator receives the application code a1 and application code b from the application number collection unit and discloses them to the public channel in order to use the application number as the preliminary number,

The step of calculating the intermediate number is,

The intermediate number generator receives the application number from the terminal, encrypts it with the encryption code, generates an application code a2, and compares whether it matches the application code a1; and

If the application code a1 and the application code a2 match, the intermediate number generator determines that the application number provided from the terminal is the same as the application number entered in the application step and discloses the application number provided from the terminal; and

It further includes the step of confirming the entire application number of the applicant by repeating the step of comparing and disclosing the application number for all applicants, and applying the calculation algorithm to the entire confirmed application number to determine the middle number. A winning number drawing method characterized by calculating.
According to paragraph 1,

The preliminary number collection step is,

The intermediate number generator disclosing information about a plurality of external servers that will receive the spare number through the public channel; and

The intermediate number generator receives the spare numbers simultaneously or sequentially from the plurality of external servers, and collects the last spare number after the application step ends,

A winning number drawing method, characterized in that the information about the external server includes a number to be used as the spare number among public information provided by the external server and a time to start the number to be used as the spare number.
According to paragraph 3,

The calculation algorithm is

A method of drawing winning numbers, characterized in that it is an algorithm for arithmetic operations between the preliminary numbers or an algorithm for extracting each digit of the middle number from the preliminary numbers.
A lottery server that performs the winning number drawing method according to any one of paragraphs 1 to 4.