JP2010250661A - Authentication system for authenticating content of information to be disclosed using two-dimensional code - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an authentication system for authenticating content of information to be disclosed using a two-dimensional code which prevents disclosure of content of information contrary to good public order and customs. <P>SOLUTION: A cellular phone 10 reads a disclosed two-dimensional code Q and transmits an authentication number disposed in a disclosed area, to an authentication server A(30A). On receipt of the authentication number from the cellular phone, the authentication server A transmits an encryption key corresponding to the received authentication number, to the cellular phone. The cellular phone 10 uses the received encryption key to decode content (web site address) of information disposed in a nonpublic area of the two-dimensional code. Only a user who has been authenticated in advance is allowed to decode content of information in the nonpublic area of the disclosed two-dimensional code, so that disclosure of content of information contrary to good public order and customs can be prevented. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention provides a public area that can be decoded without using an encryption key and a secret area that is encrypted with the encryption key and that can be decoded with the encryption key. The present invention relates to an authentication system for authenticating contents, and particularly preferably relates to an authentication system used for authenticating whether or not a website that is accessed through the two-dimensional code is appropriate.

A two-dimensional code may be used as a method for providing information to an unspecified number of people. Since the amount of information that can be included in a two-dimensional code is limited, the address of the website is accommodated in the two-dimensional code, and the two-dimensional code can be accessed by, for example, a mobile phone. ing. Currently, many such two-dimensional codes are published on media such as newspapers and magazines. Patent Document 1 discloses an identification information management system that centrally manages identification information based on electronic data to ensure security.

JP 2003-124920 A

At present, since the content of the two-dimensional code is not checked at all, there is a possibility that a two-dimensional code including inappropriate content is posted on the media. Furthermore, there are many websites accessed by the above-described two-dimensional codes posted on various media that are contrary to public order and morals, but no check has been made.

The present invention has been made in order to solve the above-described problems, and an object of the present invention is to have a secret area encrypted with an encryption key, and the data in the secret area with the encryption key. It is an object of the present invention to provide an authentication system that authenticates the contents of information to be disclosed using a two-dimensional code that can prevent the disclosure of the contents of information that is against public order and morals.

In order to achieve the above object, the invention of claim 1 includes a public area QO that can be decoded without using an encryption key, a private area QS that is encrypted with the encryption key and that can be decoded with the encryption key, An authentication system for authenticating the content of information to be disclosed using a two-dimensional code Q comprising:
A mobile phone 10 capable of decoding the two-dimensional code;
A two-dimensional code issuing machine (vendor) 50 for issuing the two-dimensional code for reading a mobile phone;
An authentication server 30A for authenticating the information content of the two-dimensional code;
The authentication server 30A
Receiving means (S32) for receiving the content of information provided as a two-dimensional code transmitted from the two-dimensional code issuing machine;
Verification means (S36) for verifying whether or not the content of the received information is information suitable for disclosure based on a predetermined condition;
As a result of the verification, if it is determined that it is suitable for publication (S38: Yes), a generating means (S40) for generating an authentication number and an encryption key used for creating data of the private area of the two-dimensional code;
Returning means (S44) for returning the authentication number and the encryption key used for data creation to the two-dimensional code issuing machine,
The two-dimensional code issuing machine 50
Receiving means (S16) for receiving the authentication number and the encryption key sent from the returning means of the authentication server;
A creation means (S22) for placing the received authentication number in the public area QO of the two-dimensional code, encrypting the content of the information with the encryption key and placing it in the private area QS to create a two-dimensional code Prepared,
The mobile phone 10 is
Transmission means (S66) for transmitting the authentication number arranged in the read area QO of the read two-dimensional code to the authentication server;
When receiving the authentication number from the mobile phone (S82), the authentication server 30A transmits an encryption key corresponding to the received authentication number to the mobile phone (S88).
The mobile phone 10 is technically characterized by using the received encryption key to decode the content of information arranged in the secret area QS of the two-dimensional code (S74).

A public area that can be decoded without using the encryption key according to claim 1 and a private area that is encrypted with the encryption key and that can be decoded with the encryption key. An authentication system for authenticating contents includes a mobile phone capable of decoding the two-dimensional code, a two-dimensional code issuing machine for issuing the two-dimensional code for reading the mobile phone, and an authentication for authenticating information contents of the two-dimensional code. And a server.

The authentication server receives the contents of the information provided as a two-dimensional code transmitted from the two-dimensional code issuing machine, verifies whether the received information contents are suitable for disclosure, and, as a result of the verification, If it is determined to be suitable, an authentication number and an encryption key used for creating data in the private area of the two-dimensional code are generated. Then, the authentication number and the encryption key used for data creation are returned to the two-dimensional code issuing machine.

The two-dimensional code issuing machine receives the authentication number and the encryption key sent from the authentication server, places the received authentication number in the two-dimensional code public area, and encrypts the information content with the encryption key. The two-dimensional code is created by placing it in a non-public area and provided for publication.

The mobile phone reads the published two-dimensional code and transmits the authentication number arranged in the public area to the authentication server. When the authentication server receives the authentication number from the mobile phone, the authentication server transmits an encryption key corresponding to the received authentication number to the mobile phone. The mobile phone then decodes the content of the information arranged in the private area of the two-dimensional code using the received encryption key. For this reason, in the disclosed two-dimensional code, only the information that has been authenticated in advance can be decoded in the contents of the information in the non-disclosure area, so that the information contents that are contrary to public order and morals can be prevented from being disclosed.

In the authentication system for authenticating the content of information to be disclosed using the two-dimensional code according to claim 2, the content of the information of the disclosed two-dimensional code is a website address, and the authentication server is designated by the address. To check whether it is suitable for publication. Since verification is performed before publication, it is possible to prevent the publication of a two-dimensional code for accessing a website that violates public order and morals.

In the authentication system for authenticating the content of information to be disclosed using the two-dimensional code according to claim 3, the authentication server includes a predetermined term for determining whether or not it is suitable for disclosure, and a score corresponding to each of the predetermined term, Register. Then, the website specified by the address in the two-dimensional code is accessed, a predetermined term included in the contents of the website is searched, and the points corresponding to the predetermined term are integrated. Then, when the accumulated score is lower than a preset score, it is determined that the score is suitable for disclosure, and when the score is exceeded, it is determined that disclosure is not possible. For this reason, it is possible to determine whether or not it is suitable for publication by automatic processing without human intervention, and it is possible to make an objective determination that is not arbitrary.

In the authentication system for authenticating the contents of information to be disclosed using the two-dimensional code according to claim 4, since the contact area to the authentication server is included in the public area of the two-dimensional code, authentication is performed from a mobile phone that has decoded the two-dimensional code. Easy access to the server.

In the authentication system for authenticating the content of information to be disclosed using the two-dimensional code of claim 5, there are a plurality of authentication servers. Each authentication server sends the score data accumulated for each predetermined percentage of the website (content of information to be disclosed) verified whether it is suitable for publication by its own verification means to other authentication servers, The score data obtained by accumulating the website is received by the other authentication server. Then, the score corresponding to the predetermined term is adjusted so as to reduce the difference between the score corresponding to the predetermined term and the score accumulated by another authentication server. For this reason, it is possible to reduce the variation in determination as to whether or not it is suitable for disclosure among a plurality of authentication servers.

In the authentication system for authenticating the content of information to be disclosed using the two-dimensional code according to claim 6, the authentication server counts the number of reports that the content of the website sent from the mobile phone is inappropriate for publication. When the count reaches a predetermined number, the transmission of the encryption key to the mobile phone is stopped. For this reason, even if the contents are inappropriate even for a website once permitted to be published by the authentication server, the contents of the encrypted information in the two-dimensional code cannot be decoded afterwards. You can disable access to the site.

In the authentication system for authenticating the content of the information to be disclosed using the two-dimensional code according to claim 7 and claim 8, the authentication server searches and accumulates a predetermined term included in the content of the website designated by the address. Based on the score, the website is classified. When the authentication server receives the authentication number from the mobile phone, the authentication server transmits the classification of the website to the mobile phone together with the encryption key corresponding to the received authentication number. In a mobile phone in which a class permitting access is registered in advance, whether to permit access to the website is determined based on the classification of the website sent from the authentication server. For this reason, it is possible to prevent access to a website of a level (class) content determined to be inappropriate by setting on the mobile phone side.

FIG. 1A is an explanatory diagram showing the configuration of the authentication system according to the first embodiment of the present invention, and FIG. 1B is a diagram of a two-dimensional code used in the authentication system, and FIG. FIG. 3 is a configuration diagram of a two-dimensional code used in the authentication system. FIG. 2A is an explanatory diagram for authentication of the contents of information to be disclosed using a two-dimensional code, and FIG. 2B is a block diagram showing a configuration of a mobile phone. 3A shows a verification result table, FIG. 3B shows a classification criteria table, FIG. 3C shows an authentication number data table, and FIG. 3D shows a term list table. Show. It is a flowchart which shows a certification | authentication application of a vendor, and the authentication process in an authentication server. It is a flowchart which shows the reading process of the two-dimensional code of a mobile telephone, and the transmission process of the encryption key from an authentication server. It is a flowchart which shows the subroutine of data verification. It is a flowchart which shows the subroutine of the verification result reception from another authentication server.

An authentication system for authenticating the contents of information to be disclosed using the two-dimensional code according to the first embodiment of the present invention will be described with reference to FIGS.
The two-dimensional code used in the first embodiment is a two-dimensional code as shown in FIG. 1B proposed by the present applicant in Japanese Patent Laid-Open No. 2009-009547, as shown in FIG. In addition, it is added to a function unit QF such as a positioning mark similar to an existing QR code, a public unit QO that can be read by a mobile phone capable of reading QR codes, and an error correction unit QE for correcting errors. Further, the two-dimensional code Q has a private area QS encrypted with an encryption key. Hereinafter, this two-dimensional code is referred to as a two-dimensional code having a private area. A two-dimensional code having a non-public area can be obtained by using a mobile phone or the like provided with software for reading the two-dimensional code by downloading, and using the encryption key used to encrypt the non-public area of the two-dimensional code. Data in the public area QS can be decoded.

With reference to FIG. 1A and FIG. 2A, an outline of an authentication system that authenticates the content of information to be disclosed using a two-dimensional code will be described first.
FIG. 2A is an explanatory diagram regarding authentication of the contents of information disclosed using a two-dimensional code. A vendor who wishes to publish a two-dimensional code that allows access to a specific website requires authentication server A, authentication server B, or authentication server C to authenticate that the website does not violate public order and morals. Now, the description will be continued assuming that the authentication server A is requested to authenticate. In this embodiment, contrary to public order and morals means that the website is used for transactions that are criminal acts such as guns, narcotics, stimulants, etc., or the content published on the website is obscene. .

The authentication server A determines whether the website requested for authentication by the vendor (two-dimensional code issuing machine) 50, which is a computer installed with software for performing processing to be described later, connected to the network 40 is contrary to public order and morals. If it is determined that it does not violate public order and morals, the website is certified for publication. At the time of authentication, the authentication server A encrypts the authentication number of the two-dimensional code for allowing the vendor to access the website and the data for allowing access to the website. An encryption key is assigned. The vendor includes the address for accessing the authentication server A and the personal identification number in the public part QO and encrypts the data for making the access to the website with the encryption key to which the private part is attached. A two-dimensional code Q included in the QS is created. Then, the created two-dimensional code Q is posted on a medium such as a magazine or a newspaper.

As shown in FIG. 1A, this two-dimensional code Q is read by a mobile phone. As shown in FIG. 2B, the mobile phone 10 includes an imaging unit 14 that includes a camera (not shown) that captures an image, an input unit 11 that includes an input key (not shown), a storage unit 16 that stores information, and a liquid crystal display. A display unit 19 provided with a device, a communication control unit 18 that controls communication with a base station 42 of a mobile phone, and a control unit 12 that controls them. In the mobile phone 10, software for reading a two-dimensional code having a secret area is downloaded and held in the storage unit 16.

When the mobile phone 10 reads the two-dimensional code Q, the mobile phone 10 first decodes the authentication number of the two-dimensional code converted into data in the public section and the address for accessing the authentication server A. Then, the mobile phone 10 first sends the decoded authentication number and the address of the authentication server A to the base station 42. The base station 42 is connected to a network 40 including the Internet, and accesses the authentication server A specified by the address via the network 40 and transmits the authentication number. Upon receiving the authentication number, the authentication server A sends an encryption key corresponding to the authentication number to the mobile phone 10 via the base station 42. The mobile phone 10 that has received the encryption key decodes the data of the private part with the encryption key and accesses the website.

Next, details of the authentication process in the authentication server A will be described with reference to the table of FIG. The authentication server A lists terms that are highly prone to be used in crimes that are contrary to public order and morals shown in FIG. 3D and obscene terms, and maintains a term list in which scores are set. For example, cannabis, narcotics, opium, pistol, guns, etc. are registered as terms used in crimes, and each is given a score. For example, as term 1, cannabis: score 10 is set.
Furthermore, as term 2, a handgun transaction: score 60 is set. Here, the score 60 means that if there is even one of the terms, it is not authenticated as being contrary to public order and morals. In addition, for example, nude, nudity and the like are set as the jargon term.

The authentication server A accesses the website for which authentication is requested, searches for whether the terms listed in the term list are included in the website, and adds the score of the terms to calculate the total points. . Then, the authentication is denied for those whose total points exceed 80. Sites with total points of 80 or less are classified as shown in FIG. Here, class A contains almost no terms contrary to public order and morals, is given when the total points are 10 or less, and the term with the highest score is less than 5. Similarly, class B has a total score of 20 or less and the highest scoring term is less than 15 points, class C has a total score of 40 or less and the scoring term is the most scoring term, less than 30 points, class D is given when the total score is 50 or less and the term with the highest score is less than 40 points, and class E is given when the sum is 80 or less and the term with the highest score is less than 60 points. For example, if even one term of score 8 is included, even if the total is 10 or less, it is divided into class B. As described above, if there is even one term of the score 60, the class E is exceeded and authentication is denied regardless of the total.

Here, web site authentication is taken as an example, but in the present embodiment, authentication is also performed when information is directly presented by text data included in the two-dimensional code, not via the web site. In this case, text data included in the two-dimensional code is similarly scored in the term list, whether or not authentication is possible is determined, and A to E are classified.

FIG. 3A shows a verification result table in which the verification result is a table.
For example, for the applicant AAA seeking authentication, the application number 100 is assigned to the requested website, and if the content is authenticated as suitable for publication, the authentication number 1001 is assigned and the determined encryption In the verification result table, “O” is held in the verification result table as to whether or not authentication key 12345678, crime point 0, decoy point 0, total point 0, and authentication are possible.

On the other hand, if the content authentication is denied because it is suitable for publication, an application number 565 is assigned to the requested website for the applicant DDD. Is not granted. Then, as the score of the content, the crime point 65, the decoy point 0, the total point 65, and whether or not authentication is possible are held in the verification result table.

The authentication number data table shown in FIG. 3C holds data corresponding to the authenticated authentication number. For example, for the authentication number 1001 described above, the determined encryption key 12345678, crime point 0, defect point 0, total point 0, class A, applicant AAA described above with reference to FIG. The application number 100 is held in the authentication number data table.

The authentication process according to the present embodiment will be described with reference to the flowcharts of FIGS.
FIG. 4 is a flowchart showing a vendor authentication application and an authentication process in the authentication server. Here, the case where the applicant AAA described above with reference to FIG. 3A applied as a vendor will be described as an example. The applicant AAA sends the data (here, an address) of the website for authentication to the authentication server A (S12). The authentication server A receives the data from the applicant AAA (S32) and stores the received data (S34). Then, data verification is performed to determine whether the data is suitable for publication (S36).

FIG. 6 is a data verification subroutine in S36. The authentication server A calls the term list described above with reference to FIG. 3D (S102), and accesses the website specified by the data (S104). Then, the contents in the website are integrated using the term list described above with reference to FIG. 3D, and the above-described crime points, trap points, and total points are obtained (S106). Finally, classification is performed as described above with reference to FIG. 3B on the basis of the accumulated crime points, decoy points, and total points. In this example, crime points are 0 and decoy points are 0. The individual points that are the maximum values of individual terms are 0, and the total points are 0, so they are classified into class A.

Returning to the main processing of FIG. 4, the subsequent processing is divided depending on whether authentication is possible or not from the result of data verification (S38). Here, when denying authentication (S38: No), an authentication impossible is transmitted to the applicant side, and a process is complete | finished (S42). The applicant who received the authentication failure (S14: Yes) ends the process.

When authenticating (S38: Yes), the authentication number 1001 and the encryption key 12345678 are created (S42), and the authentication number and the encryption key are transmitted to the applicant AAA side (S44). The applicant AAA receives the authentication number and the encryption key (S16), places the authentication number and the address of the authentication server A in the public area (S18), and is encrypted with data (website address). It is encrypted with a key and placed in a private area (S20), and a two-dimensional code is issued (S22). This issued two-dimensional code is published in media such as weekly magazines.

After transmitting the authentication number and the encryption key in S44, the authentication server A confirms whether or not the authentication is proper in order to confirm whether the authentication is proper or not by using the total points of verification and the other authentication server. Compare the total points on the verification server. In this comparison, for example, the verification of the authentication server B shown in FIG. Here, the description will be continued assuming that the authentication server B is required to verify the 100th authenticated website (S46: Yes).

The authentication server A sends an address for accessing the verification target website to the authentication server B (S48), receives the total points verified by the authentication server B, and varies in authentication with other authentication servers. Adjustment is made so as not to occur (S50).

The verification result receiving process in S50 will be described with reference to FIG. 7 showing a subroutine of the process.
First, it is determined whether it is a verification request from another authentication server (S122). For example, when verification is requested from the authentication server C (S122: Yes), the website obtained from the authentication server C is verified as described above with reference to FIG. 6 (S124), and the verification result Is transmitted to the authentication server C (S126).

When the verification result from the other authentication server (total point of the website) is received instead of the verification request from the other authentication server (S122: No), the self total point and the total point of the other authentication server Is different by a predetermined ratio, for example, 30% or more (S130). Here, when the difference of the total points exceeds 30% and there is no difference (S130: Yes), the process is ended as an allowable error range. On the other hand, if the difference is 30% or more (130: No), the number of cases is counted (S132). By seeing the number of cases, the authentication server administrator can determine whether or not manual adjustment work is necessary. Here, when the total point of the self exceeds 30% than other authentication servers (S134: Yes), each score of the term list described above with reference to FIG. For example, 10% lower. On the other hand, when the total point of the self is lower than the other authentication server by 30% (S134: No), each score of the term list described above with reference to FIG. S136), the process is terminated.

In the authentication system of the first embodiment, there are a plurality of authentication servers. Each authentication server sends a predetermined ratio of the authenticated website (content of information to be disclosed) to another authentication server, and receives the score obtained by integrating the website with the other authentication server. Then, the score corresponding to the predetermined term is adjusted so as to reduce the difference between the score corresponding to the predetermined term and the score accumulated by another authentication server. For this reason, it is possible to reduce the variation in the determination of whether or not it is suitable for disclosure among a plurality of authentication servers.

FIG. 5 is a flowchart showing the reading process of the two-dimensional code published in the above-mentioned weekly magazine by the mobile phone and the transmission process of the encryption key from the authentication server.
The mobile phone 10 images the two-dimensional code published in the weekly magazine with the imaging unit 14 and reads it (S62). Then, the authentication number arranged in the public area and the address of the authentication server A are read (S64). Next, the authentication server A is accessed via the base station 42 by the address, and the authentication number (1001) is transmitted (S66).

The authentication server A receives the authentication number (S82), and searches for the encryption key corresponding to the authentication number (1001) using the personal identification number data table described above with reference to FIG. 3C (S84). And it is judged whether the said authentication number has stopped distribution (S86). If the distribution is stopped (S86: Yes), the process is terminated. On the other hand, if the distribution is not stopped (S86: No), the retrieved encryption key (12345678) and the class (class A) corresponding to the application number are returned to the mobile phone (S88).

The mobile phone 10 receives the encryption key and the class (S68), compares the class preset in the mobile phone with the class sent to the website (S70), and determines whether access is possible. (S72). For example, when the class C is set for the mobile phone and the website class is D (S72: No), the process is terminated. Here, since the class of the website is A, the access is made possible (S72: Yes), the data is decoded from the private area using the encryption key and read (S74), and the website is accessed (S76). ). If there is no indication that the user who opened the website is unfair or inappropriate (S78: No), the process is terminated. On the other hand, when there is an operation pointed out by the user as unfair or inappropriate (S78: Yes), the authentication server A side is notified that the website is unfair (S79).

When the authentication server A receives a notification of unfairness from the mobile phone side (S90: Yes), it counts the number of notifications (S92). Then, it is determined whether or not the counted number of notifications exceeds a predetermined value (for example, 10) (S94). Until the measure constant is exceeded (S94: No), the process is terminated. S94: Yes), the response (distribution) to the authentication number for accessing the website is stopped (S96).

In the authentication system of the first embodiment, the mobile phone 10 reads the published two-dimensional code Q and transmits the authentication number arranged in the public area to the authentication server A (30A). Upon receiving the authentication number from the mobile phone (S82), the authentication server A transmits an encryption key corresponding to the received authentication number to the mobile phone (S88). Then, the mobile phone 10 decodes the content (website address) of the information arranged in the private area of the two-dimensional code using the received encryption key. For this reason, in the published two-dimensional code, the contents of the information in the non-disclosure area can be decoded only after being authenticated in advance, so that the contents of the information contrary to public order and morals can be prevented from being disclosed.

In the authentication system of the first embodiment, the content of the information in the two-dimensional code to be disclosed is a website address, and is the authentication server suitable for publication by accessing the website specified by the address? Verify whether or not. Since verification is performed before publication, it is possible to prevent the publication of a two-dimensional code for accessing a website that violates public order and morals.

In the authentication system of the first embodiment, the authentication server registers a predetermined term for determining whether or not it is suitable for disclosure and a score corresponding to the predetermined term. Then, the web site designated by the address in the two-dimensional code is accessed (S104), a predetermined term included in the content of the web site is searched, and the points corresponding to the predetermined term are accumulated (S106). Then, when the accumulated score is below a preset score, it is determined that the score is suitable for publication (S38: Yes), and when it exceeds (S38: No), it is determined that disclosure is impossible. For this reason, it is possible to determine whether or not it is suitable for publication by automatic processing without human intervention, and it is possible to make an objective determination that is not arbitrary.

In the authentication system of the first embodiment, since the contact area for the authentication server is included in the public area of the two-dimensional code, the authentication server can be easily accessed from a mobile phone that has decoded the two-dimensional code.

In the authentication system for authentication according to the first embodiment, the authentication server counts the number of reports that the content of the website sent from the mobile phone is inappropriate for publication (S92), and the count reaches the predetermined number. If so (S94: Yes), the transmission of the encryption key to the mobile phone is stopped (S96). For this reason, even if the contents are inappropriate even for a website once permitted to be published by the authentication server, the contents of the encrypted information in the two-dimensional code cannot be decoded afterwards. You can disable access to the site.

In the authentication system of the first embodiment, the authentication server classifies the website based on the score obtained by searching and integrating predetermined terms contained in the contents of the website designated by the address (S106). ). When the authentication server authentication number is received from the mobile phone (S82), the classification of the website is transmitted to the mobile phone together with the encryption key corresponding to the received authentication number (S88). In a mobile phone in which a class that allows access in advance is registered, it is determined whether to allow access to the website based on the classification of the website sent from the authentication server (S72). For this reason, it is possible to prevent access to a website of a level (class) content determined to be inappropriate by setting on the mobile phone side.

DESCRIPTION OF SYMBOLS 10 Mobile phone 11 Input part 12 Control part 14 Imaging part 16 Memory | storage part 30A Authentication server A
40 network 50 vendor (two-dimensional code issuing machine)

Claims (8)

Authenticate the contents of the information to be disclosed using a two-dimensional code that includes a public area that can be decoded without using an encryption key and a private area that is encrypted with the encryption key and that can be decoded with the encryption key. An authentication system:
A mobile phone capable of decoding the two-dimensional code;
A two-dimensional code issuing machine for issuing the two-dimensional code for reading a mobile phone;
An authentication server for authenticating the information content of the two-dimensional code;
The authentication server is
Receiving means for receiving information provided as a two-dimensional code transmitted from the two-dimensional code issuing machine;
A verification means for verifying whether or not the content of the received information is information suitable for disclosure based on a predetermined condition;
As a result of the verification, if it is determined that it is suitable for publication, a generation means for generating an authentication number and an encryption key used for creating data of the private area of the two-dimensional code,
A return means for returning the authentication number and the encryption key used for data creation to the two-dimensional code issuing machine;
The two-dimensional code issuing machine is
Receiving means for receiving the authentication number and the encryption key sent from the returning means of the authentication server;
The received authentication number is placed in the public area of the two-dimensional code, and the creation means for creating the two-dimensional code by encrypting the content of the information with the encryption key and placing it in the private area,
The mobile phone
Comprising a transmitting means for transmitting the authentication number arranged in the read area of the read two-dimensional code to the authentication server,
When the authentication server receives the authentication number from the mobile phone, the authentication server transmits an encryption key corresponding to the received authentication number to the mobile phone,
The mobile phone authenticates the content of the information to be disclosed using the two-dimensional code, wherein the content of the information arranged in the secret area of the two-dimensional code is decoded using the received encryption key Authentication system. The content of the information to be disclosed is a website address,
The contents of information to be disclosed using the two-dimensional code according to claim 1, wherein the verification means of the authentication server verifies whether or not it is suitable for disclosure by accessing the website specified by the address. Authentication system to authenticate. The verification means of the authentication server includes
A registration means for registering a predetermined term for determining whether or not it is suitable for publication, and a score corresponding to the predetermined term;
Searching for the predetermined term included in the content of the website designated by the address, and scoring means for accumulating the score corresponding to the predetermined term,
3. The authentication system for authenticating the content of information to be disclosed using the two-dimensional code according to claim 2, wherein when the accumulated score falls below a preset score, it is determined that the score is suitable for publication. 4. The content of information to be published using the two-dimensional code according to claim 1, wherein a contact area to the authentication server is included in the public area of the two-dimensional code. Authentication system. A plurality of the authentication servers,
Each authentication server sends the score data accumulated for each website of a certain percentage of the websites that have been verified to be suitable for publication by its own verification means to other authentication servers, and verifies the other authentication servers. The two-dimensional data according to claim 3, wherein score data obtained by integrating the website is received by the means, and the score corresponding to the predetermined term is adjusted by comparing with the score obtained by integrating the website by its own verification means. An authentication system that authenticates the contents of information to be disclosed using codes. The authentication server counts the number of reports that the website sent from the mobile phone is inappropriate for publication, and when the count reaches a predetermined number, transmits the encryption key to the mobile phone. The authentication system for authenticating the contents of information to be disclosed using the two-dimensional code according to claim 2, wherein the authentication system is stopped. The authentication server is
Based on the score obtained by searching the predetermined term included in the content of the website specified by the address, the website is classified,
The two-dimensional code according to claim 3, wherein when the authentication number is received from the mobile phone, the classification of the website is transmitted to the mobile phone together with an encryption key corresponding to the received authentication number. An authentication system that authenticates the content of information disclosed. The mobile phone includes registration means for registering a class that allows access in advance,
The information to be disclosed using the two-dimensional code according to claim 7, wherein whether to allow access to the website is determined based on the classification of the website sent from the authentication server. An authentication system that authenticates content.

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