JPWO2017115612A1 - Processing system, processing method, and program - Google Patents

Abstract

A main object of the present invention is to provide a processing system, a processing method, and a program capable of preventing analysis of a program and preventing a malicious user's attack itself.
A processing system for processing a program transmitted from the outside via a wired or wireless network, the receiving unit receiving the program, and analyzing the program received by the receiving unit An extraction unit that extracts a plurality of specific regions in which the code is written, a selection unit that randomly selects at least a part of the plurality of specific regions extracted by the extraction unit, and the specification selected by the selection unit And a conversion unit that rewrites the code described in the area into a format that does not affect the execution of the program.
[Selection] Figure 1

Description

  The present invention relates to a processing system for processing a program transmitted from the outside via a wired or wireless network.

  Currently, there is a content that provides a user with a content obtained by combining programs and data provided from a plurality of servers via a website. As a specific example, for example, as described in Patent Literature 1, map data acquired from a map server and a program acquired from a content server are combined and provided to the user.

JP 2008-146232 A

  By the way, when a malicious user accesses a website such as that described above, by analyzing the program and finding the code itself constituting the program or the regularity of the code, what processing is executed with which code. There is a problem that the contents of processing are falsified and the contents of the process are altered, or an unauthorized program for executing unauthorized access to the program is added.

  In order to prevent such a problem from being analyzed by a malicious user, for example, encryption that encodes a program and makes it impossible to execute the program without a key code for canceling the program is used. However, the key code can be acquired if time and effort are taken, and once acquired, all the programs encrypted using the key code can be analyzed. For this reason, it is difficult for a malicious user to obtain a key code even if it takes time and effort, and to abandon the attack.

  The present invention has been made in view of the above-described problems, and provides a processing system, a processing method, and a program capable of preventing analysis of a program and abandoning a malicious user attack. This is the main purpose.

  The processing system of the present invention is a processing system for processing a program transmitted from the outside via a wired or wireless network, the receiving unit receiving the program, and analyzing the program received by the receiving unit. An extraction unit that extracts a plurality of specific regions in which a specific code is described; a selection unit that randomly selects at least one of the plurality of specific regions extracted by the extraction unit; and the selection unit selected by the selection unit A conversion unit that rewrites the code described in the specific area into a format that does not affect the execution of the program.

  As a result, of the specific area in which the specific code of the program is written, the area randomly selected by the selection unit is rewritten to a format that does not affect the execution of the program by the conversion unit. For this reason, programs that have passed through this processing system can execute different codes even in the same process, so even if a malicious user tries to analyze the program, it is difficult to find the regularity of the code. Can be prevented.

  Further, in the conventional encryption, when one key code is acquired, all programs using the key code can be decrypted. Therefore, a malicious user performs an attack even if it takes an enormous amount of time and effort to acquire one key code. However, the program that has undergone the processing system of the present invention is not encrypted using the key code, and it is difficult to find regularity because the code is different even in the same processing. Therefore, even if one program can be analyzed, the analysis method is not necessarily applicable to other programs, and it is necessary to spend time and labor for analysis for each program. It is possible to give up the attack.

  As one embodiment of the above-described processing system of the present invention, when there are a plurality of formats that do not affect the execution of the program, the conversion unit includes a plurality of formats that do not affect the execution of the program. One of these can be selected and rewritten.

  Thereby, the variation of the code after rewriting can be increased, the regularity of the code can be made harder to find, and the analysis of the program can be made more difficult.

  As an embodiment of the above-described processing system of the present invention, there may be mentioned one further provided with a time management unit for adding to the program a restriction program that restricts a part of the function of the program when a predetermined time elapses. .

  As described above, by adding a restriction program that restricts a part of the functions of the program when a predetermined time has elapsed, a restriction can be imposed on the time during which a malicious user analyzes the program. For this reason, if the time limit is exceeded, the time and effort spent for the analysis are wasted, and it is possible to give up the attack of a malicious user.

  Further, the processing method of the processing system described above is a processing method for processing a program transmitted from the outside via a wired or wireless network, and the extraction unit analyzes the program and describes a specific code. A first step of extracting a plurality of specific areas; a second step of selecting at least a part of the plurality of specific areas extracted in the first step; and a conversion section. And a third step of rewriting the code described in the specific area selected in the second step into a format that does not affect the execution of the program.

  Furthermore, as a program for executing the above-described processing system, a computer analyzes a program transmitted from the outside via a wired or wireless network, and extracts a plurality of specific areas in which specific codes are described. A step, a second step of randomly selecting at least a part of the plurality of specific regions extracted in the first step, and the code described in the specific region selected in the second step Can be used as a third step of rewriting the program into a format that does not affect the execution of the program.

  In addition, as a specific aspect of the above-described processing system, an initial program that is connected in advance to a plurality of user terminals via a wired or wireless network and is preliminarily input with the program including the conversion code rewritten by the conversion unit A plurality of additional portions embedded in the first program and the initial program when the execution state of the user program created by the initial program in the first user terminal satisfies a plurality of predetermined conditions. And a recording unit that records the content created by the first user terminal in association with the execution data.

  Furthermore, as a specific aspect of the processing system, the content includes at least one of audio data, character data, moving image data, and program data.

  According to the processing system of the present invention, it is possible to prevent an analysis of a program and abandon a malicious user attack.

The block diagram which shows the processing system of 1st Embodiment. An example of the program for demonstrating the specific area | region which the extraction part extracted. An example of the program for demonstrating the specific area | region which the selection part selected. An example of the program for demonstrating the specific area | region which the conversion part converted. The block diagram which shows the processing system of 2nd Embodiment. The block diagram which shows the processing system of 3rd Embodiment.

  Hereinafter, an embodiment of a processing system of the present invention will be described with reference to the drawings.

  The processing system of the present invention provides a user with content obtained by synthesizing a program developed by a program developer to information acquired from an external server via a website. For example, map information acquired from an external server In addition, game content created by synthesizing a game program developed by a program developer is provided to a user through a website. In the following, the processing system of the present invention will be described using a game as an example, but the processing system of the present invention is not limited to this example.

<First Embodiment>
As shown in FIG. 1, the processing system 1 in the first embodiment of the present invention is connected to an external server 100, a developer terminal 200 of a program developer, and a user terminal 300 of a user via a wired or wireless network, respectively. In addition, this network is connected to the Internet via a proxy server or the like (not shown).

  The external server 100 receives the request from the user terminal 300 and transmits the accumulated information. In the present embodiment, the external server 100 transmits the map information to the user terminal 300, but is not limited to this information and may be any information.

  The developer terminal 200 is a smartphone, tablet terminal, PC, or the like that includes a CPU, a memory, a communication port, a network interface, etc. (not shown), and creates a program using source code such as JavaScript (registered trademark) and TypeScript. .

  The user terminal 300 is, for example, a smartphone, a tablet terminal, a PC, or the like that includes a CPU, a memory, a communication port, a network interface, and the like (not shown). In the present embodiment, it is assumed that GPS is installed in the user terminal 300.

  The configuration of the processing system 1 in the first embodiment will be described in detail below.

  The processing system 1 is a server including a CPU, a memory, an A / D converter, a communication port, a network interface, and the like. By installing a predetermined program in the memory, the recording unit 2, the receiving unit 3, and the extracting unit 4 , Function as the selection unit 5, the conversion unit 6, the addition unit 7, and the transmission unit 8.

  The receiving unit 3 receives a program sent from the developer terminal 200. This program is, for example, a treasure hunting game program in which a treasure appears if a certain condition is satisfied, or an escape game program that attempts to escape by solving a certain mystery, and constitutes an element of game content.

  The extraction unit 4 analyzes the program received by the reception unit 3 and extracts a plurality of specific areas 10 in which specific codes are described in the source code in which the programs are written. The specific code refers to a variable, a function, a control statement, a block code including a plurality of statements including these, or a character / numerical value.

A specific example of the specific area is shown in FIG.
-A code indicating a variable is described. Specific area 10a var a = 100;
Specific area 10b var b = 200;
-A block code including a variable is described. Specific area 10c
var a = 100;
var b = 200;
var c = a + 1;
-A block code including a function is described. Specific area 10d
function f (a) {return a + 1;}
var b = f (1);
var c = f (2);
Specific area 10h
function f (b) {return b + 1;}
var e = f (1);
var g = f (2);
-A code indicating an if statement that is a control statement is described. Specific area 10e
if (a == 2) {b = 1;} else {b = 2;}
Specific area 10i
if (a == 3) {b = 4;} else {b = 6;}
-A code that indicates a for statement that is a control statement is described. Specific area, etc. 10f
for (vari = 0; i <100; ++ i) {++ b;}
-Characters enclosed in double quotes are described. Specific area 10ga = "HELLO";

  The selection unit 5 randomly selects at least a part of the plurality of specific regions 10 extracted by the extraction unit 4. At this time, the selection unit 5 can select all the specific areas 10 extracted by the extraction unit 4, but in this embodiment, as shown in FIG. 3, the specific areas 10b, 10c, 10d, 10e, 10f, Assume that 10 g is selected.

  The conversion unit 6 rewrites the code described in the specific areas 10b, 10c, 10d, 10e, 10f, and 10g selected by the selection unit 5 into a format that does not affect the execution of the program. This format includes (1) a method of rewriting to a code equivalent to the code before rewriting, (2) a method of replacing the order of the codes before rewriting within a range that does not hinder program execution, and (3) before rewriting. There is a method of adding a dummy code to the above code.

  First, (1) a method for rewriting a code equivalent to the code before rewriting will be described in more detail.

When a variable is described in the specific area 10, it can be rewritten into an equivalent code by representing the variable with a plurality of sentences. As a specific example, the specific region 10b can be rewritten as shown in FIG.
var b;
b = 200;

Further, when a function is described in the specific area 10, the function can be expanded and rewritten into an equivalent code. As a specific example, the specific area 10d can be rewritten as shown in FIG.
var b = 1 + 1;
var c = 2 + 1;
Note that when a function developed in the specific area 10 is described, it can be rewritten to an equivalent code obtained by functionalizing the code, contrary to the above.

Furthermore, when a control statement is described in the specific area 10, it can be rewritten into an equivalent code using another control statement or operator. As a specific example, the control statement in the specific area 10f can be rewritten using a while statement as shown in FIG.
var i = 0;
while (i <100) {++ b; ++ i;}
The specific area 10e can be rewritten using an operator as shown in FIG.
a == 2? b = 1: b = 2;

  In addition, when a character is described in the specific area 10, it is rewritten into an equivalent code by using a method of decomposing and describing the character, a method of replacing the character with a code, a method of replacing the character with a variable, etc. be able to.

As a specific example of the method of decomposing and describing characters, it is possible to rewrite the specific area 10g as shown in FIG.
a = “H”;
a + = “E”;
a + = "L";
a + = "L";
a + = “O”;

As a specific example of the method of replacing characters with codes, for example, rewriting the specific area 10g as follows can be mentioned.
a = String.fromCharCode (72,69,76,76,79);

As a specific example of a method for replacing a character with a variable, for example,
var money = 1000;
var price = 100;
var moneyRest = money-price;
var a = 1000;
var b = 100;
var c = a−b;

In addition, if it is a numerical value, it can be rewritten into an equivalent code by expanding and describing the numerical value using four arithmetic operations. As a specific example, the numerical value 200 in the specific area 10b is
rewriting to an equivalent code of var b = 100 + 100;

  Next, (2) a method for changing the order of codes before rewriting within a range that does not hinder program execution will be described in more detail.

  This method means that when the specific area 10 is composed of block codes, the order of the codes is changed within a range that does not hinder the execution of the program. A specific example is shown in FIG.

The specific order 10c shown in FIG. 4 is rewritten as follows, and the order of the codes is changed within a range that does not hinder the execution of the program.
var b;
b = 200;
var a = 100;
var c = a + 1;

Although not shown in the figure, the code order can be changed within a range in which the specific area 10d is rewritten as follows and the program execution is not hindered.
var b = f (1);
function f (a) {return a + 1;}
var c = f (2);

  Finally, (3) a method of adding a dummy code to the code before rewriting will be described in detail.

  As a method for adding a dummy code, any code that does not affect the processing of the program can be inserted as a dummy code. As an example of this, in addition to adding variables as dummy code, adding objects, adding branch processing, adding loop processing, adding a function and calling function of that function, These variables may be replaced with dummy variables once, and dummy variables are replaced with regular variables before regular variables are used, and regular processing is executed within the added branch, loop, or function.

Specific examples are described below.
For example, the code before inserting the dummy code is as follows.
var selectedType = 1;
if (selectedType == 1) {
alert ("Do process A");
} Else {
alert ("Do process B");
}
A dummy code is inserted into this.
var a = 4;
var selectedType = 1;
var b = a, c = selectedType;
var x;
if (b == selectedType) {
x = f (b, selectedType, b);
} Else {
for (var i = 0; i <1; ++ i) {
b = a / c;
x = c;
if (x == selectedType && selectedType == 1) {
a = 2;
f ();
} Else {
a = 1;
alert (“Process B”);
}
}
}
function f (p, q, r) {
var x = 2;
alert (“Process A”);
return p + q-x * r;
}

  The above-described method may be used alone, for example, (1) the above-described method of rewriting the code equivalent to the code before rewriting, or (2) the order of the code before rewriting disturbs the execution of the program. It can also be used in combination with a method of replacing within a range that does not come.

  In addition, there may be a plurality of formats that do not affect the execution of the program. That is, (1) when there are two or more methods for rewriting the equivalent code, (2) when there are two or more methods for replacing the order of the codes within a range that does not hinder the execution of the program, (3) dummy code insertion method Is 2 or more, or when any of the above methods (1), (2), and (3) is possible. As described above, when there are a plurality of rewriting methods, the conversion unit 6 can appropriately select and rewrite any one of the plurality of formats.

  The adding unit 7 acquires the program converted by the converting unit 6 and embeds this program in an initial program created in advance. The initial program functions on the user terminal 300, and requests to acquire information held by the external server 100, and combines the program converted by the conversion unit 6 with this information to create a user program. It is instructed to create.

  The recording unit 2 records an initial program. Note that, for example, the initial program may be recorded in association with the time information when the program is received by the receiving unit 3 or information related to the name of the program at the time of recording.

  The transmission unit 8 receives an initial program request from the user terminal 300, extracts the initial program from the recording unit 2, and transmits the initial program to the user terminal 300.

  In the user terminal 300, the initial program transmitted from the transmission unit 8 is executed, a request for acquiring information is sent to the external server 100, and this information is transmitted from the external server 100. In the present embodiment, position information such as the latitude, longitude, altitude, and the like of the GPS of the user terminal 300 is sent to the external server 100, and the external server 100 transmits map information including this position information. In the user terminal 300, a program for the user is generated by synthesizing the program converted by the conversion unit 6 with the map information. This user program places, for example, a treasure at a predetermined point on a map and sets various traps linked to position information between the current position of the user and the predetermined point, and the user actually A process related to a so-called real game in which a treasure can be obtained by moving to a position and solving a trap is performed. Then, by executing the user program on the user terminal 300, the user can play the game.

  In the above-described embodiment, when the transmission unit 8 records a plurality of initial programs in the recording unit 2, the transmission unit 8 sends a list of initial programs recorded in the recording unit 2 to the user terminal 300. Alternatively, it may be configured to receive selection information of an initial program appropriately selected by the user from the list, extract the initial program from the recording unit 2 based on the selection information, and transmit the initial program to the user terminal 300.

  In the processing system 1 according to the first embodiment configured as described above, the region selected at random by the selection unit 5 out of the specific region 10 in which the specific code is described is executed by the conversion unit 6 to execute the program. It is rewritten to a predetermined format that does not affect it. Therefore, since the program that has passed through the processing system 1 can have different codes for executing the same processing, it is difficult to find the regularity of the code even if a malicious user tries to analyze the program. Can be prevented.

  Further, when a malicious user tries to analyze a program that has passed through the system 1 of the present embodiment, regularity cannot be found, and this analysis takes enormous time and effort. In addition, if one key code is obtained as in the conventional encryption, it is not possible to analyze all the programs encrypted using the key code, and it takes time and effort for each program. Since analysis is required, it is possible to abandon malicious user attacks.

  Furthermore, the processing system 1 rewrites characters and numerical values that serve as a program analysis hint into a format that does not affect the execution of the program, thereby eliminating the program analysis hint and making the program analysis more difficult. can do.

  In addition, when there are a plurality of formats that do not affect the execution of the program, if the conversion unit 6 is configured to appropriately select and rewrite any one of the plurality of formats, the conversion unit The number of code variations after rewriting can be increased to make it more difficult to find regularity and to make the program analysis more difficult.

  In addition, you may comprise so that the play data which show the progress condition until then which the user played can be preserve | saved in the recording part 2 of the processing system 1, or the memory provided separately. At this time, for example, an ID is determined for each user, and this ID and the play data are linked and recorded. Thereby, even after the user once disconnects communication with the processing systems 1 and 21, once the ID is present, the game can be resumed from the continuation that has been played before.

Second Embodiment
Next, the configuration of the processing system 21 in the second embodiment will be described in detail below. In addition, the same code | symbol is attached | subjected to the part similar to 1st Embodiment, and description is abbreviate | omitted.

  As shown in FIG. 6, the processing system 21 according to the second embodiment includes a time management unit 11 that adds a restriction program that restricts a part of the functions of a program to a program that has passed through the conversion unit 6 when a predetermined time has elapsed. Furthermore, the point provided is different from 1st Embodiment.

  Here, if the program transmitted from the program developer communicates with another user and plays, for example, such as a communication battle, the user can connect with another user connected via the processing system 21. Communicate.

  However, a malicious user analyzes the source code of the game program during play and alters part of the source code to generate an event that is not possible with the original program, or to generate an item that is not in the original program However, there is a problem that by using this to play, a specific user may remain in the ranking of communication battles, making it impossible to play the game soundly.

Therefore, the processing system 21 includes a time management unit 11.
The time management unit 11 adds a restriction program to the program that has passed through the conversion unit 6. The restriction program is a method for acquiring time information from a clock built in the processing system 21 and storing it in the memory of the processing system 21 when a predetermined time has elapsed since the user terminal 300 accessed the website. The play data indicating the progress of the game up to that time cannot be saved, or communication with other user terminals is disconnected to restrict a part of the program functions. Note that the counting method for the predetermined time is not limited to the above-described method, and may be, for example, a method of counting from the time when the transmission unit 8 transmits the initial program.

  As a result, when a predetermined time elapses after the user terminal 300 accesses the processing system 21, game data cannot be stored or communication is disconnected. Therefore, a time limit is set for analyzing a malicious user's program, and the analysis of the program can be made more difficult. In addition, if the time limit elapses, the time and labor spent for the analysis up to that time are wasted, and it is possible to abandon malicious user attacks.

  Note that the restriction program added by the time restriction unit 11 may be added in advance to the program sent from the reception unit 3 as well as the program passed through the conversion unit 6.

<Third Embodiment>
Next, the configuration of the processing system in the third embodiment will be described in detail below. In addition, the same code | symbol is attached | subjected to the part similar to 1st Embodiment and 2nd Embodiment, and description is abbreviate | omitted.

  The processing system 31 of the third embodiment is different in that a user can create content or display content created by another user depending on a program posted by a program developer. In addition, although the processing system 31 of this embodiment is connected to the two user terminals 300 as an example, the two or more user terminals 300 may be connected.

  The program posted by the program developer includes a process for displaying a message prompting the first user to create content when the program developer satisfies a plurality of predetermined conditions, and satisfies the plurality of conditions. In addition, a process for displaying the content created by the first user to the second user is included.

  Predetermined conditions refer to the state defined by the program developer in advance. For example, in the case of a program related to a game, conditions such as moving area, first battle character, number of enemies fought, play time, etc. Can be defined as This condition is freely set according to the program developed by the program developer.

  The processing system 31 of this embodiment that has received this program converts the code in the specific area of the program by the recording unit 2, the receiving unit 3, the extracting unit 4, the selecting unit 5, and the converting unit 6 as described above. Then, the converted program is embedded in an initial program input in advance by the adding unit 7.

  As shown in FIG. 6, the recording unit 33 records the initial program and also records data such as content transmitted from the user terminal 300.

  As shown in FIG. 6, the transmission / reception unit 34 transmits / receives the initial program and data recorded in the recording unit 33 to the user terminal 300.

  The first user terminal 300a and the second user terminal 300b are connected to the processing system 31 through a wired or wireless network.

  The operation of the processing system 31 configured as described above will be described below. In the following description, for the sake of explanation, it is assumed that the second user terminal 300b is connected to the processing system 31 after the first user terminal 300a is connected to the processing system 31, and the first user terminal 300a accesses the processing system 31. It is assumed that no data other than the initial program is recorded in the recording unit 33 at the time.

  When the initial program is executed in the first user terminal 300a, the initial program acquires information from the external server 100, synthesizes the program converted by the conversion unit 6 with this information, creates a user program, The user program is executed in the one user terminal 300a.

  This user program provides, for example, a real game and the like, and compares the state defined by the program developer with the execution state of the user program, prompts the user to create content, The content is transmitted or the content recorded in the recording unit 33 is acquired.

  Specifically, when the state previously defined by the program developer is “the moving area is 5 or more”, “the number of fighting enemies is 50 or more”, and “the play time is 50 hours or more”, the first user terminal 300a If the execution state of “the moving area is 6”, “the number of fighting enemies is 70”, and “the play time is 60 hours”, it is determined that the condition is satisfied, and “display content” "Is it?" Or a content creation button is displayed. It should be noted that a display that always prompts content creation may be displayed regardless of conditions. When the content is always displayed, the conditions of “movement area”, “number of fighting enemies”, and “play time” at the timing of creating the content are used.

  Upon receiving this display, the first user creates content by using voice data, character data, moving image data, program data, etc., such as the impression of the game, support for other players, and the strategy of the game. In the present embodiment, as an example, the first user creates a content of audio data “This enemy is too strong”.

  In addition, it can be comprised so that a user can select suitably whether the content which a 1st user produces is produced from audio | voice data, character data, moving image data, or program data.

  When the first user creates content in the first user terminal 300a, the content and a plurality of execution data indicating the execution state of the user program in the first user terminal are transmitted to the processing system 31. In the present embodiment, together with the content “This enemy is too strong” created by the first user using voice data, a plurality of “moving area is 6”, “number of fighting enemies is 70”, and “play time is 60 hours” Execution data is sent.

  The transmission / reception unit 34 receives a plurality of execution data indicating the execution state of the second program transmitted from the first user terminal 300a and the content created by the first user terminal 300a.

  The recording unit 33 records the content created by the first user terminal 300a in association with a plurality of execution data indicating the execution state of the user program in the first user terminal 300a received by the transmission / reception unit 34.

  Next, when the initial program is executed in the second user terminal 300b, the initial program acquires information from the external server 100, and synthesizes the program converted by the conversion unit 6 with this information to create a user program. Then, the user program is executed in the second user terminal 300b.

  In addition to the processing at the first user terminal 300a, the user program includes a plurality of pieces of execution data recorded in the recording unit 33 at the second user terminal 300b. It is determined whether or not. If they match, it requests the recording unit 33 to extract and transmit the content associated with the plurality of execution data. That is, when the execution data in the second user terminal 300b is “moving area is 6,” “the number of enemies fought is 70,” and “play time is 60 hours”, the user program is stored in the recording unit 33. The first user associated with the execution data requests to extract and transmit the content “This enemy is too strong” created by the voice data.

  The recording unit 33 receives the request and extracts content that matches the plurality of execution data. At this time, when there are a plurality of corresponding contents, the recording unit 33 may extract all of the plurality of contents or may be configured to extract at least one.

  The transmission / reception unit 34 transmits the content, that is, the voice data “this enemy is too strong” to the second user terminal 300b, and the second user terminal 300b reproduces / displays the content.

  According to the processing system 31 of the third embodiment configured as described above, it is possible to display the content according to the execution state of the user's program, and thus it is possible to display the content more in line with the situation. Further, if the processing system 31 in the third embodiment is used in a game, the user who is a player can use the game to capture or feel like playing with other users. be able to.

  The present invention is not limited to the above embodiment.

  In the first embodiment and the second embodiment, the developer terminal and the user terminal are each constituted by one for the sake of explanation, but a plurality of these may be provided.

  Further, in the processing systems of all the embodiments described above, the processing order is not limited to that described above. For example, after the processing unit embeds the program received by the reception unit in the initial program, the extraction unit, the selection unit, and the conversion unit The unit may be configured to rewrite a specific area of the program.

  Furthermore, in the processing system of the third embodiment, a time management unit may be provided separately. Furthermore, although the game has been described as an example in the third embodiment, the processing system of the third embodiment can be used for sports such as marathons. In this case, for example, “selected course length”, “travel distance”, “travel time”, and the like can be selected as a plurality of predetermined conditions for creating / reproducing the content. In addition, if a plurality of contents that match a plurality of conditions are extracted from the recording unit and played back on the second user terminal, cheering can be delivered to the marathon runner who is the user.

  In addition, in the third embodiment, the user program records in the recording unit of the user terminal the content that has been recorded in the recording unit of the processing system and the plurality of execution data linked to the content. It may be configured. With this configuration, content can be displayed without making a request to the processing system, so that the processing speed can be increased.

  The present invention can be variously modified without departing from the spirit of the present invention.

  The present invention is a processing system that can prevent analysis of a program and abandon a malicious user attack.

DESCRIPTION OF SYMBOLS 1 ... Processing system 3 ... Reception part 4 ... Extraction part 5 ... Selection part 6 ... Conversion part

Claims (7)

A processing system for processing a program transmitted from the outside via a wired or wireless network,
A receiving unit for receiving the program;
An analysis unit that analyzes the program received by the reception unit and extracts a plurality of specific areas in which specific codes are described;
A selection unit that randomly selects at least a part of the plurality of specific regions extracted by the extraction unit;
A processing system comprising: a conversion unit that rewrites the code described in the specific area selected by the selection unit into a format that does not affect execution of the program.   When there are a plurality of formats that do not affect the execution of the program, the conversion unit selects and rewrites any one of the plurality of formats that do not affect the execution of the program The processing system according to claim 1.   The processing system according to claim 1, further comprising a time management unit that adds, to the program, a restriction program that restricts a part of the function of the program when a predetermined time elapses. A processing method for processing a program transmitted from the outside via a wired or wireless network,
A first step in which the extraction unit analyzes the program and extracts a plurality of specific regions in which specific codes are described;
A second step in which the selection unit randomly selects at least a part of the plurality of specific regions extracted in the first step;
And a third step of rewriting the code described in the specific area selected in the second step into a format that does not affect execution of the program. Computer
A first step of analyzing a program transmitted from the outside via a wired or wireless network and extracting a plurality of specific areas in which specific codes are described;
A second step of randomly selecting at least a part of the plurality of specific regions extracted in the first step;
A program that operates as a third step of rewriting the code described in the specific area selected in the second step into a format that does not affect the execution of the program. Connected to multiple user terminals via a wired or wireless network,
An additional unit that embeds the program including the conversion code rewritten by the conversion unit in an initial program that is input in advance;
The initial program is recorded, and when the execution state of the user program created by the initial program in the first user terminal satisfies a plurality of predetermined conditions, the initial program is associated with a plurality of execution data indicating the execution state The processing system according to claim 1, further comprising: a recording unit that records content created by the first user terminal. The processing system according to claim 6, wherein the content includes at least one of audio data, character data, moving image data, and program data.

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