JP2014228771A - Method for providing digital data with emblem mark - Google Patents

Abstract

An object of the present invention is to provide digital data with a mark mark and verify whether or not fraudulent acts relating to the mark have been performed. Document data 30 serving as an instruction is attached to an application 100, accommodated in a folder F, and distributed. The document data 30 includes image data of a built-in mark mark 25 indicating quality assurance of the application 100. The embedded mark mark 25 is generated by incorporating the HASH value (target identification information 11) for the entire application 100 into the original mark mark 20 as a digital watermark. The validity of the association between the application 100 accommodated and distributed in the same folder F and the document data 30 is newly generated from the object identification information 11 separated from the embedded mark mark 25 and the application 100. Verification can be made by confirming a match with the target identification information 11 (HASH value). By using the same method, it is possible to verify the legitimacy of linking arbitrary digital data and arbitrary mark marks. [Selection] Figure 10

Description

  The present invention relates to a technique for providing digital data with a predetermined mark mark and verifying whether or not the provided mark mark is genuine.

  In modern society, various digital data such as application programs, content data, and Web page data are used in various information processing terminal devices such as personal computers, smartphones, and electronic tablets. In particular, in recent years, the distribution form of these digital data has become the mainstream online distribution form using the Internet, and the user can obtain the desired one from the enormous number of digital data provided on the net. Select as appropriate and download and use it.

  The vast number of digital data sources provided on the Internet vary from the major reliable companies to the individual level, and of course, their quality varies. Of course, this includes digital data that the cracker has created or altered maliciously. Therefore, when a user downloads and uses individual digital data, it is important to recognize the quality and safety.

  As described above, various countermeasures have been proposed in order to ensure the security of digital data distributed to users. For example, Patent Document 1 below discloses a technique for embedding a digital watermark in specific frame data in order to prevent the distribution of unauthorized content when distributing moving image content data via a network. Further, in Patent Document 2, when displaying a certification mark by a third party organization on a Web page, the third party organization is included in the certification mark so that the validity of the certification mark can be confirmed. A technique for embedding the URL as a digital watermark is disclosed.

Japanese Patent No. 5005841 JP 2000-331088 A

  In general, digital data producers adopt a method of informing users of the quality and safety of digital data by providing the digital data they have created with a predetermined mark. . A typical mark mark used for such purposes is a logo mark such as a trademark. Many large companies register their logo marks as trademarks and distribute the registered trademarks to digital data. The user uses the digital data based on the assumption that the quality and safety of the digital data with the famous logo mark will be ensured.

  In addition, a method has been proposed in which the quality and safety of individual digital data are evaluated by a third-party organization, and the obtained evaluation result is given as an evaluation mark to notify the user. For example, if a “safety mark” is given to data that is confirmed by a third-party organization to be safe digital data that has not been infected with a virus, the user will be given the “safety mark”. If digital data is marked with, you can use it with confidence.

  In this way, if any mark mark is attached to the digital data and distributed, it becomes possible to present information on quality and safety to the user. However, since digital data itself is intangible, when it is distributed in the state of being recorded on a recording medium such as a CD or DVD, the logo mark may be displayed on the recording medium or its case. When distributing with, the logo mark is prepared as image data, and the image of the logo mark is displayed on the display screen of the user's terminal device when the user performs the download operation or uses it after the download. I have to take a form.

  However, if the form in which the image data constituting the mark mark is added and distributed to the target data to which the mark mark is to be assigned, an illegal act by a cracker is likely to be performed. For example, a cracker obtains regular digital data with a regular mark, extracts only the image data that constitutes the regular mark, and distributes it as completely different digital data. It becomes possible to do. Therefore, the cracker can distribute malware that performs illegal operations on the Internet with a legitimate mark added. Of course, the mark mark can be tampered with or counterfeited, so for example, it is possible to replace it with another company's logo mark, or to change the evaluation mark indicating low evaluation to the evaluation mark indicating high evaluation. is there.

  Accordingly, the present invention provides a method for enabling verification of whether or not fraudulent acts relating to the mark mark have been performed when providing a predetermined mark mark on digital data. The purpose is to prevent such fraud.

(1) According to a first aspect of the present invention, there is provided a method for providing digital data with a mark, which provides digital data with a predetermined mark.
A mark mark acquisition stage in which a mark mark assigning computer acquires image data constituting the mark mark, and
The mark mark assigning computer prepares specific data included in the target data to which the mark mark is to be assigned or derived data that is uniquely derived based on the specific data as target identification information. The target identification information preparation stage;
The mark mark giving computer incorporates the object identification information into the image data constituting the mark mark based on a predetermined algorithm, thereby creating an object identification information incorporation step for creating an embedded mark mark;
A data providing stage in which the data providing computer links the target data and the embedded mark mark and provides the data;
Is to do.

(2) According to a second aspect of the present invention, in the method for providing digital data with a mark according to the first aspect described above,
Data file or program file is the target data,
In the target identification information preparation stage, the file name of the data file or program file is prepared as target identification information.

(3) According to a third aspect of the present invention, in the method for providing digital data with a mark according to the first or second aspect described above,
In the target identification information preparation stage, a function value obtained by applying a predetermined unidirectional function to specific data constituting part or all of the target data is prepared as target identification information. is there.

(4) According to a fourth aspect of the present invention, in the method for providing digital data with a mark according to the first to third aspects described above,
In the target identification information preparation stage, encryption processing using a predetermined encryption key is performed in the process of preparing the target identification information, and encrypted target identification information is prepared.

(5) According to a fifth aspect of the present invention, in the method for providing digital data with a mark according to the first to fourth aspects described above,
In the target identification information incorporation stage, the embedded mark mark is created by embedding the object identification information as an electronic watermark in the image data constituting the mark mark.

(6) According to a sixth aspect of the present invention, in the method for providing digital data with a mark according to the first to fourth aspects described above,
By combining the image data constituting the mark and the data constituting the object identification information at the stage of incorporating the object identification information, the edge image composed of the data constituting the object identification information is formed outside the mark mark. An added composite image is generated, and this composite image is used as an embedded mark mark.

(7) According to a seventh aspect of the present invention, in the method for providing digital data with a mark according to the first to sixth aspects described above,
In the data providing stage, the target data and the built-in mark mark are accommodated in the same folder or the same package so that they are linked and provided.

(8) According to an eighth aspect of the present invention, in the method for providing digital data with a mark according to the seventh aspect described above,
The target data is composed of application programs or content data,
In the data providing stage, the application program or content data is provided in the same folder or the same package as the document data to which the associated embedded mark mark is assigned.

(9) A ninth aspect of the present invention provides the digital data with mark marks according to the first to sixth aspects described above,
In the target data, include the link information for specifying the embedded mark mark linked to the target data,
In the data providing stage, target data and built-in mark marks linked to each other by this linking information are provided.

(10) According to a tenth aspect of the present invention, in the method for providing digital data with a mark according to the ninth aspect described above,
The target data is constituted by an application program, and this application program displays a screen including an embedded mark mark specified by the association information when the program is executed.

(11) In an eleventh aspect of the present invention, in the method for providing digital data with a mark according to the first to sixth aspects described above,
The target data is composed of application programs or content data,
In the data providing stage, the application program or the content data is provided together with an icon including an embedded mark mark or an icon constituted by the embedded mark mark itself.

(12) According to a twelfth aspect of the present invention, in the method for providing digital data with a mark according to the first to sixth aspects described above,
In the data provision stage, the target data and the embedded mark mark are stored in the server device, and when a download request is sent from the client device to this server device, The embedded mark mark is linked to the client device and transmitted to the client device.

(13) According to a thirteenth aspect of the present invention, in the method for providing digital data with a mark according to the twelfth aspect described above,
In the data provision stage, when the download instruction screen for downloading the target data is transmitted from the server device to the client device, and the download instruction is given on this download instruction screen, the target data instructed And the embedded mark mark associated with the target data is displayed on the download instruction screen together with the target specifying display for specifying the individual target data. It is a thing.

(14) According to a fourteenth aspect of the present invention, in the method for providing digital data with a mark according to the thirteenth aspect described above,
The download instruction screen is configured by a screen on which target identification display, embedded mark mark, and download instruction button are arranged for each target data.

(15) According to a fifteenth aspect of the present invention, in the method for providing digital data with a mark according to the twelfth aspect described above,
The target data includes a Web page display document described in a markup language, and the Web page display document includes association information for specifying an embedded mark mark to be displayed on the Web page. Included,
At the data providing stage, the Web page display document and the embedded mark mark are stored in the Web server device, and the Web page display document and the embedded mark mark are received in response to a request from the Web browser of the client device. Are transmitted to the client device.

(16) According to a sixteenth aspect of the present invention, in the method for providing digital data with a mark according to the fifteenth aspect described above,
The target data includes a Web page display document and a script file that is directly or indirectly referred to by the Web page display document. The Web page display document displays data on the Web page. Includes pegging information to identify the embedded mark that should be
The mark mark assigning computer prepares derived data that is uniquely derived based on specific data included in the Web page display document and the script file as target identification information.

(17) According to a seventeenth aspect of the present invention, in the method for providing digital data with a mark according to the first to sixteenth aspects described above,
An application program, content data, or Web page data is used as target data, and an evaluation mark displaying an evaluation result of the target data as an image is used as a mark.

(18) According to an eighteenth aspect of the present invention, in the method for providing digital data with a mark according to the seventeenth aspect described above,
The embedded mark mark is created by incorporating the evaluation result together with the target identification information into the image data constituting the mark mark at the stage of incorporating the target identification information.

(19) According to a nineteenth aspect of the present invention, in the method for providing digital data with a mark according to the first to eighteenth aspects described above,
In the target identification information incorporation stage, the embedded mark mark is created by incorporating the expiration date of the mark mark together with the object identification information into the image data constituting the mark mark.

(20) According to a twentieth aspect of the present invention, a mark mark associated with target data is provided for the digital data provided by the method for providing digital data with a mark mark according to the first to nineteenth aspects described above. In the verification method of the mark mark that verifies
A verification mark input stage in which a mark mark verification computer inputs target data and embedded mark marks linked to each other;
An object identification information separation stage, wherein the mark mark verification computer separates object identification information embedded in the embedded mark mark;
A mark identification computer generates a target identification information generation stage for generating target identification information based on target data;
The mark mark verification computer performs a match check between the target identification information separated in the target identification information separation stage and the target identification information generated in the target identification information generation stage,
When a positive result is obtained in the matching confirmation stage, it is determined that the embedded mark mark input in the verification target input stage is genuine.

(21) According to a twenty-first aspect of the present invention, a mark mark associated with target data is provided for the digital data provided by the method for providing digital data with a mark mark according to the thirteenth or fourteenth aspect described above. In the verification method of the mark mark that verifies
A verification mark input stage in which the mark mark verification computer inputs a download instruction screen and target data downloaded by giving a download instruction on the download instruction screen;
Separation of target identification information by which the mark mark verification computer separates the embedded target identification information for the embedded mark mark associated with the downloaded target data included in the download instruction screen Stages,
An object identification information generation stage in which a mark mark verification computer generates object identification information based on the downloaded object data;
The mark mark verification computer performs a match check between the target identification information separated in the target identification information separation stage and the target identification information generated in the target identification information generation stage,
When a positive result is obtained at the match confirmation stage, the embedded mark on the download instruction screen entered at the verification target input stage is judged to be genuine. Is.

(22) According to a twenty-second aspect of the present invention, the mark mark associated with the target data is verified with respect to the digital data provided by the method for providing digital data with a mark mark according to the eighteenth aspect described above. In the verification method of the mark mark,
A verification mark input stage in which a mark mark verification computer inputs target data and embedded mark marks linked to each other;
An object identification information separation stage in which the mark mark verification computer separates the object identification information embedded in the embedded mark mark and the evaluation result;
A mark identification computer generates a target identification information generation stage for generating target identification information based on target data;
The mark mark verification computer performs a match check between the target identification information separated in the target identification information separation stage and the target identification information generated in the target identification information generation stage,
The evaluation result inquiry stage, in which the mark mark verification computer inquires the evaluation result for the target data input in the verification target input stage to the evaluation result reference computer that stores the evaluation result for each target data. When,
An evaluation result answering stage in which the evaluation result inquiry computer answers the evaluation result of the inquired target data;
An evaluation result confirmation stage in which the mark mark verification computer confirms the coincidence between the evaluation result separated in the target identification information separation stage and the evaluation result answered in the evaluation result reply stage;
If a positive result is obtained in both the match confirmation stage and the evaluation result confirmation stage, it is determined that the embedded mark mark entered in the verification target input stage is genuine. It is a thing.

(23) In a twenty-third aspect of the present invention, the mark mark associated with the target data is verified with respect to the digital data provided by the method for providing digital data with a mark mark according to the nineteenth aspect described above. In the verification method of the mark mark,
The mark mark verification computer inputs the target data and the embedded mark mark that are linked to each other,
An object identification information separation stage in which the mark mark verification computer separates the object identification information incorporated in the embedded mark mark and the expiration date;
A mark identification computer generates a target identification information generation stage for generating target identification information based on target data;
The mark mark verification computer performs a match check between the target identification information separated in the target identification information separation stage and the target identification information generated in the target identification information generation stage,
The mark mark verification computer checks whether the current time is within the expiration date separated in the target identification information separation stage,
If a positive result is obtained in both the match confirmation stage and the expiration date confirmation stage, it is determined that the embedded mark mark entered in the verification target entry stage is genuine. It is a thing.

(24) According to a twenty-fourth aspect of the present invention, in the mark mark display method using the mark mark verification method according to the twentieth to twenty-third aspects described above,
After the mark mark display computer is judged to be genuine with respect to the built-in mark mark, the built-in mark only when it is judged to be legitimate. If the mark is normally displayed and it is not determined that the mark is genuine, the mark is not displayed at all, or the mark is not displayed together with the mark. A mark indicating that it has been a target of fraudulent behavior is displayed.

  (25) According to a twenty-fifth aspect of the present invention, there is provided an object identification information preparation stage, a mark mark capturing stage, an object identification information set in the method for providing digital data with mark marks according to the first to nineteenth aspects described above. The embedding stage is executed by incorporating a dedicated program into the mark mark assigning computer.

  (26) According to a twenty-sixth aspect of the present invention, a data providing step in the method of providing digital data with a mark according to the first to nineteenth aspects described above is implemented by incorporating a dedicated program into the data providing computer. It is made to execute.

  (27) According to a twenty-seventh aspect of the present invention, the mark mark verification method according to the twentieth to twenty-third aspects described above is executed by incorporating a dedicated program into the mark mark verification computer. Is.

  (28) In the twenty-eighth aspect of the present invention, the dedicated program itself or a part thereof according to the twenty-seventh aspect described above is the target data to which the mark mark is to be assigned or a part thereof. It is a thing.

  According to the present invention, since the target identification information unique to the target data is incorporated in the image data constituting the mark, the mark provided in association with the target data based on the target identification information. It is possible to verify whether or not the mark is genuine. For this reason, it becomes possible to verify whether or not any fraudulent acts have been performed on the mark, and as a result, such fraudulent acts can be prevented.

It is a figure which shows an example of the combination of the target data 10 and the mark mark 20 provided and distributed to this. It is a figure which shows the example which gave the device which concerns on the basic concept of this invention about the combination shown in FIG. 1, and was able to verify whether the fraudulent act regarding the mark mark was performed. It is a flowchart which shows the basic procedure of the provision method of the digital data with a mark mark concerning this invention. It is a flowchart which shows the basic procedure of the verification / display method of the mark mark which concerns on this invention. It is a figure which shows the example which utilized the file name as object identification information about general digital data. It is a figure which shows the example which utilized the HASH value or encryption HASH value obtained by making the whole or a part about general digital data into object as object identification information. It is a figure which shows the example which produced the built-in mark mark 25 by embedding the object identification information 11 in the mark mark 20 as a digital watermark. It is a figure which shows the example which produced the built-in mark mark 25 by adding the object identification information 11 to the exterior of the mark mark 20 as the edge image 26. FIG. It is a figure which shows the example which tied both by accommodating the object data 10 and the built-in mark mark 25 in the same folder F. FIG. It is a figure which shows the example linked with the built-in mark mark 25 displayed on the document data 30 used as the description by making the application program 100 into the object data 10. FIG. It is a block diagram which shows the example which linked | related between the program main-body part 210 provided as the application package 200 for Android terminals, and the built-in mark mark 25. FIG. It is a figure which shows the specific method of displaying an embedded mark mark at the time of starting of the application program shown in FIG. In the example shown in FIG. 11, it is a figure which shows an example of the concrete starting screen displayed when an application program is started. It is a figure which shows the example which linked | related between the application program 100 and the built-in mark mark 25 attached | subjected to a part of its icon. It is a figure which shows the example which linked | related between the application program 100 and the built-in mark mark 25 which consists of the icon itself. It is a figure which shows the example linked | related between the program main-body part 210 provided as the application package 200 for Android terminals, and the built-in mark mark 25 which consists of an icon itself. It is a figure which shows the example which provides the target data 10 and the built-in mark mark 25 which were mutually linked | related via the network N from the server apparatus 310 to the client apparatus 320. FIG. It is a figure which shows an example of the screen 350 for a download instruction | indication for downloading a game application. It is the elements on larger scale of the download instruction | indication screen 350 shown in FIG. It is a figure which shows the data transmitted to the client apparatus 320 side in order to display the download instruction | indication screen 350 shown in FIG. 19, and the target data 10 downloaded. It is a figure which shows the example of a display of a general web page. It is a figure which shows the structural example of a data file required in order to display the web page shown in FIG. It is a figure which shows the example which transferred to another web page via the link from the web page shown in FIG. It is a figure which shows the example of a display of the web page which requires input of ID and a password in order to log in. It is a figure which shows the structural example of the data file required in order to display the web page shown in FIG. 24, and to process the input data. It is a figure which shows another example of a structure of the data file required in order to display the web page shown in FIG. 24, and to process the input data. It is a figure which shows the example of the mark mark used as an evaluation mark which shows evaluation results, such as an application program, content data, and a web page. It is a figure which shows the example which displayed the evaluation mark shown in FIG. 27 on the screen 370 for a download instruction | indication for downloading a game application. It is a figure which shows the example which gave the device which concerns on the basic concept of this invention about the combination of the target data 10 and the built-in mark mark 25A which shows evaluation about this target data 10. FIG. FIG. 30 is a diagram illustrating an example of a specific start screen displayed when the target data 10 illustrated in FIG. 29 is an application program and the program is started. It is a block diagram which shows the example of a system configuration | structure in case the application developer X requests the application evaluation company Y and performs the evaluation mark provision process. It is a figure which shows the Example which incorporates the evaluation result 17 with the object identification information 11 in the evaluation mark. It is a flowchart which shows the basic procedure of the verification and the display method about the evaluation mark shown in FIG. It is a figure which shows an example of the evaluation result list | wrist prepared in the evaluation result inquiry computer 750 in implementing the verification method shown in FIG. It is a figure which shows the Example which incorporates the object identification information 11, the evaluation result 17, and the expiration date 18 in an evaluation mark.

  Hereinafter, the present invention will be described based on the illustrated embodiments.

<<< §1. Basic concept of the present invention >>
The present invention relates to a providing method for providing digital data provided with a predetermined mark mark and a verification method for verifying a mark mark provided by the method. Therefore, in this §1, first, the basic concept of these methods will be briefly described.

  Consider a combination of the target data 10 and the mark mark 20 as shown in FIG. Here, the target data 10 may be any digital data as long as it is data to which a mark mark is to be given. The illustrated example is an example in which an application program and content data (music data, moving image data, etc.) are used as the target data 10. Of course, the target data 10 may be arbitrary data such as Web page display data, word processor document data, spreadsheet data, and address book data.

  On the other hand, the mark mark 20 is an image of a trademark, a logo, an authentication mark, an evaluation mark, and the like to be given to the target data 10, and in the illustrated example, a design in which a character “MARK” is superimposed on a heart-shaped symbol. Is shown as a mark mark 20. Although both the target data 10 and the mark mark 20 are digital data, the mark mark 20 is composed of image data to be presented to a user who uses the target data 10.

  In the present application, “giving the mark mark 20 to the target data 10” means that the mark data 20 is presented to the target data 10 so that the mark mark 20 is presented to the user as an image displaying some information about the target data 10. This means that the mark mark 20 is linked. For example, when the target data 10 is an application program and the mark mark 20 is a logo mark of a provider of the application program, the mark mark 20 is programmed to be displayed on the startup screen of the application program. If so, both are linked. Alternatively, if the target data 10 is a content data file and the mark mark 20 is used as an icon image of the file, the two are linked. In addition, a specific mode for linking the two will be described in detail in §3.

  In this way, if a predetermined mark mark 20 is given to some target data 10 and provided to the user, the user grasps the information indicated by the mark mark 20 as information related to the target data 10. Become. For example, if the target data 10 is an application program and the mark mark 20 is a logo mark, the user will recognize that the application program is a product provided by a company that owns the logo mark. Let's go.

  Therefore, if a fraudulent act such as forgery or replacement of the mark mark 20 is performed, the user will be misidentified, which is a big problem. For example, the cracker obtains the combination of the legitimate target data 10 and the mark mark 20 shown in FIG. 1, extracts only the mark mark 20, and assigns it to malware that performs an illegal operation and distributes it. In this case, the general user misuses the malware as a legitimate product to which the mark mark 20 is given, and may cause unexpected damage to the user. Further, when the mark mark 20 is a registered trademark, an illegal replacement becomes an act of infringing on the trademark right, and the trademark right holder is also damaged.

  Similarly, if the mark mark 20 is a quality assurance mark that guarantees the quality of an application program or content data as the target data 10 or an evaluation mark that indicates an evaluation result, it is inferior if an illegal replacement is performed. The quality assurance mark and the evaluation mark indicating high evaluation are attached to the target data, and the reliability of the quality assurance function and the quality evaluation function by these marks is impaired.

  The present invention provides a technique for verifying whether or not fraudulent acts relating to a mark mark have been performed when providing a given mark mark to arbitrary digital data. It is what we propose.

  FIG. 2 is a diagram showing an example in which the combination shown in FIG. 1 is devised according to the basic concept of the present invention so that it is possible to verify whether or not an illegal act related to a mark mark has been performed. The basic concept of the present invention is that a pair that constitutes a regular combination of the target data 10 and the mark mark 20 is distributed in a state in which some information indicating that both are correct pairs is incorporated, and the distribution receiving side Using the information, it is verified whether or not both are correct pairs.

  Specifically, first, specific data included in the target data 10 is extracted as target identification information 11. In the example shown in FIG. 2, the part of the object identification information 11 to be extracted is hatched. The target identification information 11 may be any part as long as it constitutes the target data 10, but since it is necessary to extract the same target identification information when performing the verification, which part of the target identification information 11 is the target identification information in advance. It is necessary to decide whether to extract as 11. For example, if it is determined that “the last 8 bytes of data in the data string constituting the target data 10” is extracted as the target identification information 11, the same target identification is always obtained from the same target data 10. Information 11 can be extracted. A specific method for extracting the target identification information 11 will be described in §2.

  Thus, if the object identification information 11 can be extracted from the target data 10 based on a predetermined rule, it is incorporated into the mark mark 20 to create an embedded mark mark 25. In the example shown in FIG. 2, the embedded mark mark 25 is created by incorporating the object identification information 11 as embedded information 21 (hatched portion) into a part of the original mark mark 20 shown in FIG. It is shown. However, as shown in FIG. 2, when the embedded mark mark 25 is displayed, if the embedded object identification information 11 can be observed as the embedded information 21, the original mark mark 20 is displayed. Can be recognized with the naked eye that the mark has been changed to the built-in mark 25.

  Therefore, in practice, it is preferable that the target identification information 11 is incorporated in a method that does not give the user a sense of incongruity using a technique such as digital watermarking. In short, the object identification information 11 can be extracted separately from the built-in mark mark 25 if data processing is performed by a computer. However, when the built-in mark mark 25 is displayed, the presence of the object identification information 11 is indicated to the user. It is preferable to incorporate it in such a way that it is not recognized. A specific installation method will be described in §2.

  When the built-in mark mark 25 can be created by the above-described built-in process, the target data 10 and the built-in mark mark 25 may be provided in association with each other. The pair of the target data 10 and the mark mark 20 as shown in FIG. 1 is paired with another partner due to fraud even if both are provided by linking them together. There is a risk of distribution. On the other hand, the pair of the target data 10 and the embedded mark mark 25 as shown in FIG. 2 may be distributed in a pair with another partner due to fraud. Since the illegal act is detected by performing the verification process, the user can take a defensive measure not to use the target data 10 on which such an illegal act has been performed.

  The verification process of the mark mark can be performed by a procedure reverse to the above-described incorporation process. That is, if the target data 10 and the embedded mark mark 25 are provided in association with the user, first, the target identification information incorporated as the embedded information 21 in the embedded mark mark 25 is first provided. 11 is taken out. On the other hand, processing for newly generating target identification information 11 is performed from the target data 10. For example, as in the above example, if an arrangement has been made such that “data for the last 8 bytes of the data string constituting the target data 10” is extracted as the target identification information 11, the same arrangement is used. Based on this, the target identification information 11 can be newly generated by extracting the target identification information 11 from the target data 10.

  Finally, it is only necessary to confirm the match between the object identification information 11 separated from the embedded mark mark 25 and the object identification information 11 newly generated based on the object data 10. If the pair of the target data 10 and the embedded mark mark 25 provided in a state of being linked to each other is a regular pair, they should match. If a match is not confirmed, it can be assumed that the two are not legitimate pairs and that some sort of fraud has occurred. If necessary, take measures such as discarding the target data 10 without using it. Can be taken.

  FIG. 3 is a flowchart showing a basic procedure of a method for providing digital data with mark marks based on the basic concept described above. When a person who provides digital data such as an application program or content data adopts the providing method using the present invention, the procedure shown in FIG. 3 may be executed. In this example, steps S11 to S13 are executed by the mark mark assigning computer, and step S14 is executed by the data providing computer. Of course, in practice, the same computer may be used as both the mark mark assigning computer and the data providing computer, and the processes of steps S11 to S13 may be executed by a plurality of different computers. It doesn't matter. These processes are executed by incorporating a dedicated program into the computer.

  First, in the mark mark capturing stage of step S11, the mark mark assigning computer performs a process of capturing image data constituting the mark. For example, in the case of the above-described example, the mark mark 20 as shown in FIG. 1 is taken into the computer as image data.

  In the target identification information preparation stage in the subsequent step S12, the mark mark assigning computer performs processing for preparing specific data included in the target data to be given the mark mark as the target identification information. In the example shown in FIG. 2, a part of the target data 10 (for example, data for the last 8 bytes) is extracted and used as the target identification information 11. In practice, a method of using derived data uniquely derived from part or all of the target data 10 as the target identification information 11 may be employed. Such an embodiment will be described in detail in Section 2.

  Then, in the step of incorporating the target identification information in step S13, the mark marking computer uses the target identification information prepared in step S12 as the predetermined algorithm for the image data constituting the mark marked in step S11. Incorporation based on it performs processing to create an embedded mark mark. In the case of the example shown in FIG. 2, the embedded mark mark 25 is created by incorporating the object identification information 11 extracted from the target data 10 into the mark mark 20 as the embedded information 21.

  Finally, in the data providing stage of step S14, the data providing computer performs processing of associating and providing the target data and the embedded mark mark. In the case of the example shown in FIG. 2, the target data 10 and the embedded mark mark 25 are provided as a regular pair linked to each other. A specific method for providing both of them in association will be described in detail in §3.

  On the other hand, FIG. 4 is a flowchart showing the basic procedure of the method of verifying the mark mark and the method of displaying the mark mark performed on the provided user side for the digital data with the mark mark thus provided. . In this example, the mark mark verification method configured by steps S21 to S24 is executed by a mark mark verification computer, and the mark mark display method configured by steps S25 to S26 is a mark mark display. Executed by a computer. Of course, the same computer may be used as both the mark mark verification computer and the mark mark display computer. Rather, in practice, an information processing terminal device such as a personal computer, a smartphone, or an electronic tablet used by a user is generally used as a combined device that serves as both a mark mark verification computer and a mark mark display computer. . These processes are executed by incorporating a dedicated program into the computer.

  As will be described later, when the application program is the target data 10, the application program itself can execute the procedure of FIG. In this case, the program itself for executing the procedure of FIG. 4 or a part thereof constitutes the target data 10 to be given a mark mark or a part thereof.

  First, in the verification target input stage of step S21, the mark mark verification computer performs a process of inputting target data and embedded mark marks linked to each other. In the case of the example shown in FIG. 2, as shown in the figure, the pair of the target data 10 and the built-in mark mark 25 is input to the mark mark verification computer as digital data linked to each other.

  In the target identification information separation stage of step S22, the mark mark verification computer performs processing for separating the target identification information incorporated in the embedded mark mark input in step S21. When the pair illustrated in FIG. 2 is provided, the object identification information 11 incorporated as the embedded information 21 in the embedded mark mark 25 is separated and extracted. Since the object identification information 11 is incorporated based on a predetermined algorithm in step S13 of FIG. 3, if the mark mark verification computer is provided with a separation processing function based on an algorithm reverse to the algorithm, The object identification information 11 can be extracted.

  In the subsequent step S23 of generating the target identification information, the mark mark verification computer performs processing for generating target identification information based on the target data input in step S21. In the case of the example illustrated in FIG. 2, processing for newly extracting the target identification information 11 from the target data 10 is performed. Since the target identification information 11 is prepared by a predetermined method in step S12 of FIG. 3, the same target identification information 11 is newly obtained by causing the mark mark verification computer to execute the same method. Can be generated.

  In the coincidence confirmation stage of step S24, the mark mark verification computer uses the object identification information separated in the object identification information separation stage in step S22 and the object identification information generated in the object identification information generation stage in step S23. Is confirmed. In the case of the pair of the target data 10 and the embedded mark mark 25 shown in FIG. 2, the pair of target identification information 11 to be confirmed should match if no illegal act is performed. Therefore, if a positive result is obtained in this coincidence confirmation stage, the built-in mark mark 25 input in the verification target input stage in step S21 is a legitimate mark associated with the target data 10. Judgment can be made.

  When the verification of the mark mark is completed in this way, in the subsequent steps S25 and S26, the procedure of the mark mark display method using the above-described mark mark verification method is performed. That is, in step S25, a branching process is performed based on the processing result in the match confirmation stage in step S24, and when the match confirmation is obtained, the mark mark display stage in step S26 is performed. In this case, the mark mark is not displayed. In short, the mark mark display computer only determines that the built-in mark mark is legitimate after it is judged in step S24 whether the built-in mark mark is legitimate. If the process of displaying the built-in mark mark is performed and it is not determined that the mark is legitimate, no display is performed.

  Alternatively, the computer for displaying the mark mark, after determining whether the embedded mark mark is genuine or not, only when it is determined that the mark is genuine. When the mark mark is normally displayed and it is not determined that the mark is legitimate, the mark indicating that the embedded mark mark is subject to fraudulent action along with the embedded mark mark ( For example, an “X” mark) may be superimposed and displayed.

  Eventually, even if the cracker performs an act of attaching a mark mark in an unauthorized manner, a negative determination result is obtained in the verification method of steps S21 to S24 executed by the user's information processing terminal device. Therefore, the normal display of the mark mark is not performed.

  It should be noted that the procedure of the verification method shown in steps S21 to S24 is performed when the user gives a verification start instruction specifying a pair of the specific target data 10 and the embedded mark mark 25 as a verification target. Alternatively, it may be automatically performed with some event as a trigger.

  In the latter case, for example, when new digital data is downloaded, if the digital data includes a pair of the target data 10 and the embedded mark mark 25 linked to each other, The verification may be automatically performed with the pair as a verification target. Alternatively, when the target data 10 is an application program, when the application program is started, verification for the embedded mark mark associated therewith can be automatically performed.

  Further, when it is confirmed by the procedure of the verification method shown in steps S21 to S24 that the pair of the target data 10 and the embedded mark mark 25 associated with each other is valid (ie, If a match confirmation is obtained in step S24), the target data 10 (application program or content data) is registered in the safety list as a safe target for which fraud has not been performed. For the objects that have already been registered, the verification method shown in steps S21 to S24 may be omitted.

<<< §2. Object identification information and its incorporation method >>
Then, here, the variation of object identification information and its specific incorporation method are demonstrated. In §1, an example of extracting “data for the last 8 bytes of the data string constituting the target data 10” as the target identification information 11 is shown as an example with reference to FIG. As long as the information is unique to the target data 10, any information may be used. In short, the specific data included in the target data 10 to which the mark mark 20 is to be assigned is prepared as the target identification information 11, and this target identification information 11 is incorporated into the mark mark 20 to incorporate the embedded mark mark. If 25 is created, it is possible to verify whether or not the built-in mark mark 25 is genuine corresponding to the target data 10 by the method described in §1.

  Of course, when verifying the mark mark, it is necessary to newly generate the target identification information 11 based on the target data 10. Therefore, a rule as to which part of the target data 10 is used as the target identification information 11. Needs to be determined in advance. In §1, an example in which the rule that “the last 8 bytes of data” of the target data 10 is set as the target identification information 11 is shown, but “the 9th to 16th bytes of data from the top” or “the top It is possible to define various rules such as “even-numbered data of 16-byte data”. Also, a rule using a variable X may be defined, such as “data of the last X bytes when the number of characters in the file name is X”.

  FIG. 5 is a diagram illustrating an example in which a file name is used as target identification information for general digital data. FIG. 5A shows an example in which the file name “aaaaa.mp4” is used as the target identification information 11A for the data file 10A composed of moving image content data. In the mark mark given to the data file 10A, the file name “aaaaa.mp4” is incorporated as the target identification information 11A. Similarly, FIG. 5B shows an example in which the file name “bbbbb.exe” is used as the target identification information 11B for the program file 10B composed of the application program. In the mark mark given to the program file 10B, the file name “bbbbb.exe” is incorporated as the target identification information 11B.

  In general, since a unique name is assigned to each file name of content data and application program, when the data file or program file is the target data 10, the file name of the data file or program file is the target identification information 11. As a result, unique target identification information can be extracted from each target data. Since the file name is essential information for management by the OS program, its location and format are determined in advance. Therefore, if the file name is used as the target identification information, the target identification information can be easily extracted from each file and used.

  In carrying out the present invention, the target data 10 is not necessarily a single file, and may be a collection of a plurality of files. For example, a program file of an application program that operates under the control of AndroidOS (registered trademark) looks like a single file from the user's perspective and can be handled in the same way as a single file. It is composed of a collection of a plurality of files called application packages (details will be described later with reference to FIG. 11). Even in such a case, the entire package can be handled as the target data 10 as one program file.

  FIG. 5 (c) treats a program file 10C (actually, a collection of a plurality of files) consisting of an application package as one target data 10, and uses the file name “ccccc.apk” as target identification information 11C. This is an example. In the mark mark given to the program file 10C, the file name “ccccc.apk” is incorporated as the target identification information 11C.

  As described above, the specific data included in the target data 10 (for example, “data for the last 8 bytes” or “file name”) is extracted and used as the target identification information 11. Is not necessarily a part of the target data 10, and the entire target data 10 may be used as the target identification information 11. However, in practice, it is difficult to use the entire target data 10 as the target identification information 11 and incorporate it into the mark mark 20. General content data and application programs have a data capacity much larger than the data capacity of the mark mark 20, so that it is difficult to incorporate it into the mark mark 20 as it is.

  For this reason, when specific data included in the target data 10 is used as the target identification information 11, the specific data is referred to as “data for the last 8 bytes” or “file name” of the target data 10. It is necessary to make a part of a relatively small amount of data. However, in carrying out the present invention, it is not always necessary to use the “specific data included in the target data 10” itself as the target identification information 11, and is uniquely derived based on the specific data. It is also possible to use the derived data as the object identification information 11.

  Such an embodiment will be described with reference to FIG. FIG. 6 is a diagram illustrating an example in which the HASH value or the encrypted HASH value obtained for the whole or a part of general digital data is used as the target identification information.

  First, in the example shown in FIG. 6 (a), the entire target data 10D (for example, digital data such as content data and application programs) indicated by a rectangle in the figure is extracted as specific data (the hatched part in the figure). Represents the extracted specific data), the HASH function is applied to the specific data to derive the HASH value 11D. In this case, the HASH value 11D may be incorporated into the mark mark 20 as the object identification information 11.

  In general, the HASH function indicates that “the same HASH value 11D is obtained when the same HASH function is applied to the same target data 10D, but the original target data 10D is obtained based on the obtained HASH value 11D. It is a one-way function with the property that it cannot be done. For this reason, the data capacity of the obtained HASH value 11D can be significantly reduced with respect to the original target data 10D (for example, if the data capacity of the HASH value 11D is to be 8 bytes, it has such a property. HASH function may be applied). Therefore, regardless of the data capacity of the original target data 10D, the HASH value 11D (target identification information 11) having a capacity suitable for incorporation into the mark mark 20 is obtained.

  The HASH value 11D thus obtained is a value that is uniquely derived based on the original target data 10D. Moreover, if the content of the original target data 10D changes, the obtained HASH value 11D also has the value. It will be affected by change. Therefore, the HASH value 11D has a function of identifying the specific target data 10D, and has qualities that can be used as the target identification information 11 in the present invention. That is, when falsification is performed on the target data 10D, the HASH value 11D derived based on the regular target data 10D does not have consistency with the target data 10D after falsification. A result of non-coincidence is obtained in the coincidence confirmation stage of S24.

  Of course, the specific data to be subjected to the HASH function is not necessarily set in the entire target data 10D. In the example shown in FIG. 6B, a part of the target data 10E (the hatched part in the figure) is extracted as specific data, and a HASH function is applied to the specific data to derive the HASH value 10H. doing. In this case as well, there is no change in that the HASH value 10H is derived data that is uniquely derived based on specific data (hatched portion) included in the target data 10E.

  However, in the case of the example shown in FIG. 6 (b), the target to which the HASH function is applied is only the hatched portion of the figure. Therefore, when the white background portion of the figure is tampered with, the HASH value 10H is inconsistent. The tampering cannot be detected. However, practically, if a white background portion in the figure is set to be “a portion that is difficult to be tampered with (for example, a main routine of a program)”, a substantially sufficient alteration detection function can be achieved.

  In addition, although the example using the most general HASH function is shown here as a one-way function, of course, the one-way function to use does not necessarily need to be a HASH function, and is compared with the original data. Any one-way function may be used as long as a function value having a small data capacity can be uniquely obtained. In short, in the target identification information preparation stage shown in step S12 of FIG. 3, specific data included in the target data 10 (specific data constituting part or all of the target data 10) or based on the specific data Thus, the derived data that is uniquely derived may be prepared as the target identification information 11. Here, as the derived data uniquely derived, a function value obtained by applying a predetermined one-way function to the specific data such as a HASH function may be used.

  It is possible to incorporate the HASH value 10H obtained in this way into the mark mark 20 as the object identification information 11 as it is, but in the case of the example shown in FIG. 6 (b), further to this HASH value 10H, An encryption process using the encryption key K is performed to derive an encrypted HASH value 11E, and this encrypted HASH value 11E is incorporated into the mark mark 20 as target identification information 11. The HASH value 10H is primary derived data derived by applying the HASH function to the original specific data (hatched portion), and the encrypted HASH value 11E is further calculated with respect to the primary derived data. Thus, it is secondary derived data derived by performing encryption processing using the encryption key K.

  For the encryption process, for example, an encryption algorithm based on a public key cryptosystem can be used. In this case, as the encryption key K, one of a pair of keys used in the public key cryptosystem (for example, a secret key) can be used. If the encryption algorithm to be used and the encryption key K are determined in advance, the encrypted HASH value 11E is also uniquely derived based on the original specific data, so the object identification information in step S23 of FIG. It is possible to newly generate an encrypted HASH value 11E at the generation stage, and it is possible to perform a match check on the pair of encrypted HASH values 11E at the match check stage at step S24. Of course, decryption processing is performed on the encrypted HASH value 11E (if encryption is performed using the public key cryptosystem, decryption is performed using the other key (for example, public key)), and a pair of HASH You may make it perform the coincidence confirmation about the value 10H.

  In the example shown in FIG. 6 (b), the HASH value 10H is encrypted. However, the data to be subjected to the HASH function (the hatched portion in the figure) is encrypted, and the encryption is performed. The HASH function may be applied to the converted data, and the obtained HASH value may be incorporated into the mark mark 20 as object identification information. In short, when encryption is performed on the target identification information, the encryption process may be performed at any stage in the process of preparing the target identification information.

  Thus, in the target identification information preparation stage of step S12 in FIG. 3, encryption processing using a predetermined encryption key is performed in the process of preparing the target identification information, and the encrypted target identification information is prepared. If it does so, since the object identification information incorporated in the mark mark 20 will be in the state encrypted, the effect which suppresses the fraud by a cracker can be heightened further. That is, even if the cracker who has obtained the embedded mark mark 25 has successfully analyzed and separated the embedded object identification information 11, the object identification information 11 is encrypted. It is difficult to recognize the relationship with the associated target data 10. Therefore, an effect of preventing an illegal act such as forging the target identification information 11 corresponding to the arbitrary target data 10 can be obtained.

  As described above, several variations of the target identification information prepared in the target identification information preparation stage in step S12 in FIG. 3 have been described. Next, a specific method in the target identification information incorporation stage in step S13 will be described. As already described in §1, in the target identification information incorporation stage, processing for creating the embedded mark mark 25 is performed by incorporating the target identification information prepared in step S12 into the mark mark 20.

  For convenience of explanation, FIG. 2 shows an example in which the object identification information 11 is incorporated in the mark mark 20 as the embedded information 21 (hatched portion) in an observable manner. It is not preferable that the mark can be observed on the mark mark 25 because it is recognized that the mark mark has been altered. Therefore, in practice, it is preferable to incorporate the object identification information 11 in a manner that cannot be observed with the naked eye so as not to give the user a sense of incongruity.

  The most suitable technique that can be used for such an embedding method is a digital watermark technique. Digital watermarking is a technology that secretly embeds arbitrary information in image data such as a digital photograph. As long as the image displayed on the display screen or the image printed by the printer is observed with the naked eye, the observer can The embedded information cannot be recognized. However, if the computer performs a recognition process based on a predetermined algorithm, it is possible to extract the information of the digital watermark embedded in the image and extract it as data.

  By using this digital watermark technology, it is possible to embed arbitrary information in an image without hindering the visual observation of a digital image. For this reason, this digital watermark technique is used for various purposes such as embedding a management code in image data for distribution of copyright. For example, Patent Document 1 described above discloses a technique for preventing unauthorized duplication by embedding a digital watermark in specific frame data when distributing moving image content data via a network. As described above, since the digital watermark technique itself is a known technique, a description of a specific method for embedding information as an electronic watermark in an image is omitted here.

  In the step of incorporating the object identification information in step S13 of FIG. 3, the embedded mark mark 25 can be created by embedding the object identification information 11 as an electronic watermark in the image data constituting the mark mark 20. FIG. 7 is a diagram showing an example in which the embedded mark mark 25 is created by embedding the object identification information 11 in the mark mark 20 as a digital watermark. The illustrated mark mark 20 and the built-in mark mark 25 are recognized as exactly the same mark as long as the user observes with the naked eye. Will grasp as.

  However, in actuality, the image data constituting the embedded mark mark 25 and the image data constituting the mark mark 20 are not the same, and data constituting the object identification information 11 is embedded in the former. Therefore, the object identification information 11 can be separated from the built-in mark 25 by performing processing based on a predetermined algorithm. When embedding the target identification information 11 using such a digital watermark technique, the ratio of the data capacity of the target identification information 11 to the data capacity of the mark mark 20 needs to be reduced to some extent. If the file name is used as the target identification information 11 as illustrated in FIG. 5 or the target identification information 11 is obtained using a one-way function as illustrated in FIG. 6, no practical problem will occur. .

  By the way, the method of incorporating the object identification information 11 into the image data constituting the mark mark 20 is not necessarily limited to the method using the digital watermark technology. FIG. 8 is a diagram showing an example in which the embedded mark mark 25 is created by adding the object identification information 11 as the edge image 26 to the outside of the mark mark 20. When this method is adopted, in the step of incorporating the object identification information in step S13 of FIG. 3, the image data constituting the mark mark 20 and the data constituting the object identification information 11 are combined to synthesize the mark mark 20. A composite image to which an edge image 26 (a portion shown by hatching with dots in the drawing) made of data constituting the object identification information 11 is added is generated outside, and this composite image is incorporated into the embedded mark mark 25. The process described above may be performed.

  The data constituting the edge image 26 is the object identification information 11 and is not meaningful information in the first place. When this is displayed as an image, it is presented as a meaningless image such as a so-called “sandstorm”. It will be. However, if the occupied area of the edge image 26 is sufficiently small compared to the occupied area of the mark mark 20, when the user observes with the naked eye, the presence of the edge image 26 does not feel strange. In FIG. 8, for convenience of explanation, the edge image 26 is shown as a relatively wide edge, but if the data capacity of the object identification information 11 is sufficiently small, it is only displayed as a thinner frame. It is.

  Actually, when the object identification information 11 is data of about 8 bytes and is displayed on a display screen having a general resolution, the user cannot recognize the edge image 26 by normal visual observation. Further, even if the edge image 26 is recognized by the naked eye observation, the edge image 26 is synthesized as a linear image along the outer edge of the mark mark 20. Since it is recognized as 20 frame lines and shadow lines, a sense of incongruity does not occur unless the lines are very thick.

  In FIG. 8, an example of the edge image 26 linearly arranged along the right side and the lower side of the rectangle constituting the outline of the mark mark 20 is shown. Composition may be performed such that the edge image 26 is formed, or composition such that a linear edge image 26 along only one arbitrary side is formed. However, in order to maintain the aspect ratio of the mark, it is preferable to provide the edge image 26 on both the vertical side and the horizontal side. The embedded mark mark 25 is slightly larger than the original mark mark 20 because the edge image 26 is added, but if the aspect ratio is maintained, a sense of incongruity does not occur. In addition, since the mark mark 20 is not necessarily an image having a rectangular outline, when the mark mark 20 is an image having an arbitrary-shaped outline, an edge portion is formed along the arbitrary-shaped outline. What is necessary is just to synthesize | combine so that the image 26 may be formed.

  When the object identification information 11 is incorporated into the mark mark 20 and the built-in mark mark 25 is created by the method shown in FIG. 8, in the object identification information separation stage in step S22 of FIG. The edge image 26 may be separated and handled as the object identification information 11. If the algorithm for synthesizing the object identification information 11 as the edge image 26 in the object identification information incorporation stage in step S13 in FIG. 3 is determined in advance, the reverse in the object identification information separation stage in step S22 in FIG. The object identification information 11 can be separated by the above algorithm.

<<< §3. Linked provision method >>>
In the data providing stage in step S14 of FIG. 3, the data providing computer performs processing of associating and providing the target data 10 and the embedded mark mark 25 as a pair. In the first place, according to the present invention, when the target data 10 and the embedded mark mark 25 are provided in association with each other, whether or not the embedded mark mark 25 is a mark correctly associated with the target data 10. It is assumed that a pair of the target data 10 to be verified and the embedded mark mark 25 is provided in a state of being linked to each other. Here, a specific method for providing the target data 10 and the embedded mark mark 25 in association with each other in the data providing stage in step S14 will be described.

<3-1. Accommodation in the same folder>
The simplest method for providing the target data 10 and the embedded mark mark 25 in association with each other is a method of providing both of them in the same folder. FIG. 9 is a diagram illustrating an example in which the both are stored in the same folder F and are associated with each other. However, in practice, it is rare that the image data constituting the built-in mark 25 is stored alone in the folder F. In practice, this built-in mark 25 is used in some way. The data is stored in the folder F together with the data file or the program file or in a state of being incorporated into a part of the data file or the program file.

  FIG. 10 is a diagram showing an example in which the application program 100 and the document data 30 serving as its instructions are accommodated in the same folder F and distributed. Specifically, in this example, the application program 100 is a game program “POKER GAME” having a file name “POKER.exe”, and the document data 30 is a manual document describing how to play this game. is there. Moreover, an embedded mark mark 25 is assigned to the upper portion of this document as shown in the figure.

  If the built-in mark 25 is a company logo, the user will recognize that the game software “POKER GAME” is provided as a product of the company. In addition, the mark may be a quality assurance mark by a third-party organization (for example, a mark indicating that the game software has a certain quality, or it should be safe software that is not infected with a virus). The user may recognize that the game software “POKER GAME” is software that satisfies a predetermined quality and safety.

  In this example, since the application program 100 (target data 10) and the embedded mark mark 25 are provided in the same folder F, the user who obtains the folder F uses the document data 30 as an application. You will recognize it as an attachment to the program 100 and you will see the embedded mark mark 25 assigned to the document data 30 as a mark displayed in relation to the application program 100.

  However, such a provision form is likely to be a target of fraud. For example, if a cracker who has obtained this folder F has re-distributed by altering only the mark mark part assigned to the document data 30, the user who has obtained the altered product will have to use this game software separately. May be misrecognized as a product of a large company. Alternatively, when the cracker has altered the application program 100 so that it performs an illegal operation and redistributed, the user who has obtained the altered product sees the mark mark displayed in the document data 30. Therefore, the user will believe that the game software is safe and execute the altered product.

  If the idea by this invention is given, when such an illegal act is performed, it can detect that the said illegal act was performed. Specifically, in the case of the example shown in FIG. 10, the HASH function is obtained by applying the HASH function to the entire application program 100 as the target data 10 (the portion surrounded by a thick line in the figure), and this HASH is obtained. A process of incorporating the value into the mark mark 20 as the object identification information 11 is performed. Therefore, the object identification information 11 is incorporated in the embedded mark mark 25 (inside the bold line in the figure) assigned to the document data 30.

  Therefore, in the terminal device of the user who has received the folder F, an illegal act is performed on the pair of the application program 100 and the embedded mark mark 25 by executing the mark mark verification / display method shown in FIG. It is possible to detect whether or not That is, the object identification information 11 is separated from the embedded mark mark 25 assigned to the document data 30, and the object identification information 11 (HASH value) is newly generated based on the application program 100. It may be verified whether or not.

  As described in §2, the HASH value for only a specific part or the part of the file name “POKER.exe”, not the entire application program 100, may be used as the target identification information 11. In order to prevent this, it is preferable to set the HASH value for the entire application program 100 as the target identification information 11 as in the illustrated example.

  As described above, the procedure of the mark mark verification method shown in FIG. 4 is performed by giving a verification start instruction in which the user designates a pair of specific target data 10 and embedded mark mark 25 as a verification target. Can be implemented. In the case of the example shown in FIG. 10, for example, the user specifies the application program 100 by specifying the file name “POKER.exe”, and the embedded mark mark 25 is displayed on the document data 30 displayed on the display screen. The embedded mark mark 25 may be specified by clicking the image portion of the image, and a verification start instruction for both may be given. The verification result as to whether or not consistency is obtained can be presented to the user by displaying some kind of dialog, or can be presented only when a result of inconsistency is obtained. Good.

  In addition, when the display method shown in steps S25 and S26 of FIG. 4 is adopted, after the verification methods of steps S21 to S24 are executed, the embedded mark mark 25 is displayed only when the two match. Therefore, in the above example, if the verification result is inconsistent, the embedded mark mark 25 displayed before the verification will disappear after the verification, and the user When 25 disappears, it can be recognized that the mark has been a target of fraud.

  In order to adopt such an operation, a dedicated program for executing steps S21 to S26 shown in FIG. 4 is incorporated in a terminal device used by a user, and the terminal device is used as a mark mark verification computer and a mark. The computer may function as a chapter mark display computer. For example, the dedicated program may be provided with a function of controlling a document display application program for displaying the document data 30, and the embedded mark mark 25 in which inconsistency has occurred may be controlled not to be displayed. .

  Alternatively, the dedicated program deletes the image data itself constituting the built-in mark mark 25 in which inconsistency has occurred, or the image data in which the built-in mark mark 25 in which inconsistency has occurred is represented as empty image data. It is also possible to prevent the embedded mark mark 25 that has been the subject of fraud from being displayed by performing a process such as rewriting.

  Whether the verification result is consistent or inconsistent, the embedded mark mark 25 is displayed. When a result of inconsistency is obtained, an “X” mark is placed on the embedded mark mark 25. For example, a mark for notifying that an illegal act such as the above has been made may be displayed in a superimposed manner. In this case, when the user clicks the built-in mark mark 25 and gives a verification start instruction in a state where the document data 30 is displayed, an “X” mark is superimposed on the built-in mark mark 25 and displayed. Therefore, it is possible to recognize that there has been an illegal act.

  The example in which the application program 100 is the target data 10 has been described above, but the target data 10 may be arbitrary data. For example, even when content data consisting of a moving image is set as target data 10 and a built-in mark mark 25 is pasted on the document data 30 which is an attached document and both are accommodated in the same folder F and distributed, the distribution is received. The user can verify the embedded mark mark 25 attached to the document data 30 by giving a verification start instruction according to the above procedure.

  Eventually, when the target data 10 is composed of an application program or content data, the application program or content data is stored in the same folder as the document data 30 to which the embedded mark mark 25 is assigned in the data provision stage. If it is accommodated in F and provided, whether the user who received the information correctly associates the pair of the embedded mark mark 25 and the application program or content data with each other. It can be verified whether or not.

<3-2. Accommodation in the same package>
9 and 10, the example in which the target data 10 and the embedded mark mark 25 are accommodated and provided in the same folder F has been described. Instead, both are accommodated in the same package. It is also possible to provide. FIG. 11 is a block diagram showing a general configuration of an application program for a terminal (hereinafter referred to as an Android terminal) operating under the control of AndroidOS (registered trademark). In this example, the target data 10 and the built-in mark mark 25 can be accommodated and provided in the same package.

  In the standard specification of the Android OS, the application program is provided in the form of an application package 200. The application package 200 basically includes a program main body 210, resource data 220, a subroutine group 230, and an auxiliary file 240 as shown in the figure. Depending on circumstances, some other files may be added or some may be omitted (for example, if the program body 210 does not use a subroutine, the subroutine group 230 is unnecessary).

  Here, the program main body 210 is a program written in Java (registered trademark) and is an element constituting the core of the application program. When the application program is activated, instruction codes are sequentially executed from the top of the program main body 210. In the case of the example shown here, the program main body 210 itself constitutes the target data 10.

  The resource data 220 is a data group of images and character strings used as necessary by the program body 210. Image data is prepared as a data file described in various formats such as JPEG format, GIF format, BMP format, and PNG format. Similarly, character string data is a data file described in various formats such as XML format. Prepared as. The icon image data of the application program is also one of the data constituting the resource data 220. In the illustrated example, the image data constituting the embedded mark mark 25 is also accommodated in the application package 200 as a part of the data group constituting the resource data 220.

  On the other hand, the subroutine group 230 includes a general-purpose subroutine program group called “Shared Object”. Each subroutine is called by a subroutine call instruction from the program main body 210, and executes a predetermined process corresponding to each role. When the called subroutine program completes its mission, control returns to the program in the program body 210 again. When making a subroutine call, the program body 210 can pass some data as an argument to the subroutine as necessary, and each subroutine program delivers the execution result to the program body 210 as necessary. Can do.

  The auxiliary file 240 is an XML format file describing auxiliary information generally called “manifest”. Here, permission information when executing the application program on the Android terminal (for example, whether the program makes an Internet connection, whether to refer to GPS information, whether to use a telephone function, Are recorded). This permission information is presented to the user at the time of installation or activation of the application program, and the installation or activation is performed only when the user inputs a confirmation that the user agrees with the permission information. The file name “POKER.apk” of the application program is also stored in the auxiliary file 240.

  Actually, the application package 200 is subjected to data compression processing, signature information addition processing, and the like for the illustrated data group, but description of these processing is omitted here.

  Here, the built-in mark mark 25 accommodated in the application package 200 as one of the resource data 220 is a mark mark given to the program body part 210 as a grant target, and the program body part 210. It is associated with (target data 10). Specifically, in the case of the illustrated example, the embedded mark mark 25 surrounded by a thick line frame is obtained by applying a predetermined HASH function to the entire program main body 210 (in the thick line frame). It is created by incorporating the HASH value into the original mark mark 20 as the object identification information 11.

  Of course, the HASH value for only a part of the program main body 210, not the entire program main body 210, may be used as the target identification information 11, and the data including not only the program main body 210 but also the subroutine group 230 and the auxiliary file 240 may be used. The HASH value for the group may be used as the object identification information 11.

  As illustrated in FIG. 11, an application program for an Android terminal is actually provided in the form of an application package 200 composed of a collection of a plurality of files. However, in the Android terminal, this package is a single file. Since the same handling is performed, it is recognized from the user as if one application program file was obtained. When the user executes the application program obtained in this way, the program in the program main body 210 or the program in the subroutine group 230 is executed, and the data in the resource data 220 is read and used as necessary.

  For example, if the program main body 210 includes a process for displaying a manual as shown in FIG. 10 as the document data 30 on the screen, the embedded mark mark 25 is displayed to the user as in the above example. Will be presented with a manual screen. Here, if the user designates a pair of the embedded mark mark 25 and the target data 10 (program body part 210) as a verification target and gives a verification start instruction, the procedure of the verification method shown in FIG. 4 is executed. Will be.

  For example, if an arrangement is made such that “the program main body 210 is always the target data 10 and the HASH value of the entire program is the target identification information 11”, the user does not specify the target data 10. can do. In this case, when the user designates the built-in mark mark 25 in the application package 200 and gives a verification start instruction, the program body portion 210 is set as the target data 10 and the entire HASH value is taken to identify the target. Information 11 is generated and verified.

  Of course, the example in which the target data 10 and the embedded mark mark 25 associated with each other are accommodated in the same package and provided is not limited to an application program for an Android terminal. The present invention can also be applied to other application programs. Further, content data may be used as the target data 10 and the content data and the embedded mark mark 25 may be accommodated and provided in the same package.

  In short, when the target data 10 is constituted by an application program or content data, the application program or content data is packaged in the same package as the document data 30 to which the embedded mark mark 25 is assigned in the data provision stage. If the user who has received the provision is housed in the device, the pair of the built-in mark mark 25 and the application program or content data is correctly associated with each other. Can be verified.

<3-3. Incorporating pegging information>
Up to now, as described in §3-1 and §3-2, the simplest method for providing the target data 10 and the embedded mark mark 25 in association with each other is the same folder or This is a method of providing in the same package. However, in practice, it is common to incorporate some kind of linking information that links the two.

  For example, in the example shown in FIG. 10, when the application program 100 is executed, a menu including an item “how to play” is presented to the user, and when the user designates the item, the document data 30 is automatically displayed. When the operation is performed, it is necessary to put some link information (for example, the file name of the document data 30) for opening the document data 30 in the application program 100. In this case, the link information functions as linking information for linking the application program 100 and the embedded mark mark 25.

  Similarly, in the example shown in FIG. 11, when the application program is activated, the embedded mark mark 25 is displayed in the program main body 210 when the embedded mark mark 25 is displayed on the activation screen. It is necessary to incorporate a startup routine having a function for displaying a startup screen including. In this case, some association information for associating the program main body 210 (target data 10) and the embedded mark mark 25 is incorporated in the activation routine.

  Here, in this way, in the target data 10, the link information for specifying the embedded mark mark 25 linked to the target data 10 is included, and at the data providing stage, the link is performed. An embodiment will be described in which target data 10 and embedded mark mark 25 linked to each other by information are provided.

  FIG. 12 is a diagram showing a specific method for displaying the embedded mark mark 25 when the application program shown in FIG. 11 is started. A part of the contents of the program main body 210 (target data 10) shown in FIG. 11 is illustrated on the left side of FIG. In this example, a start routine is arranged at the head of the program body 210, and after various start processes are executed by this start routine, a main routine for performing the original process of the application program is provided. Executed.

  The startup process executed by this startup routine includes a process of displaying a startup screen as illustrated in FIG. On the start-up screen, a title of the active application “POKER GAME”, a message “<Starting>”, a built-in mark, and a progress bar indicating the progress of the start-up process are displayed. Here, the built-in mark mark is displayed on the start-up screen, as shown on the right side of FIG. 12, the built-in mark mark 25 (here, the file name “ This is because the image data having “LOGO.jpg” is read by the startup routine. Therefore, the file name of the display target image “LOGO.jpg” is included in the startup routine shown in FIG. 12, and the file name includes the program body 210 (target data 10) and the embedded mark mark. That is, the linking information 215 for linking 25 with each other.

  As described above, when the embedded mark mark 25 is a mark displayed on the start screen of the application program, the verification process is automatically performed at the start without the verification start instruction by the user. It is also possible. For example, the file name of the embedded mark mark 25 displayed on the start-up screen in this way is “LOGO.jpg”, and the HASH value obtained with the entire program main body 210 as the target data 10 is the target identification information 11. If an agreement is made in advance and the verification and display method of the mark mark shown in FIG. 4 is automatically performed when the application program is started, the verification is automatically performed even if there is no instruction to start verification by the user. Processing will be executed.

  In particular, if the processing routine of the mark mark verification / display method shown in FIG. 4 is incorporated in the startup routine of the program main body 210 shown on the left side of FIG. 12, the application package 200 shown in FIG. The built-in mark mark 25 included in the mark mark 25 has a function of automatically verifying the validity of the built-in mark mark 25 at the time of its own activation by the verification routine included in itself. That is, the program itself (or a part thereof) that executes the processing routine of the mark mark verification / display method shown in FIG. 4 constitutes the target data 10 to which the mark mark is attached or a part thereof. become.

  In this case, when the user activates the application program, the verification processing in steps S21 to S24 in FIG. 4 is performed by the activation routine included in the head portion of the program main body 210. That is, the program body 210 separates the target identification information 11 from the image data having the file name “LOGO.jpg”, obtains the HASH value for itself, and sets it as the new target identification information 11. The mark mark display step of step S26 is executed only when they match. If the two match, a start-up screen (start-up screen including the built-in mark mark 25) as shown in FIG. 13 is displayed. If the two do not match, the built-in mark mark 25 is not displayed. Alternatively, an “X” mark may be displayed over the embedded mark mark 25.

  The example in which the embedded mark mark 25 is displayed on the start-up screen has been described above. Of course, in the main routine of the program main body 210, the association information about the embedded mark mark 25 and this are read and displayed. If the routine is incorporated, the built-in mark mark 25 can be displayed on an arbitrary screen when the application program is executed. That is, when the target data 10 is configured by an application program, the application program can display a screen including an embedded mark mark specified by the association information when the program is executed.

  In addition, if a verification routine for performing the verification processing shown in steps S21 to S24 in FIG. 4 is incorporated in the application program, the application program includes the embedded mark mark 25 linked to itself. You can verify the legitimacy by yourself.

<3-4. Linking to icons>
Subsequently, the application program or content data is used as the target data 10, and at the data providing stage, the target data 10 is provided together with an icon including an embedded mark mark or an icon constituted by the embedded mark mark itself. An example in which the icon is used as an icon indicating the application program or content data will be described.

  FIG. 14 is a diagram showing an example in which association is performed between the application program 100 and the embedded mark mark 25 attached to a part of the icon. In this example, an image as shown on the right side of the figure is used as an icon for an application program (POKER GAME) having a file name “POKER.exe”. This icon is constituted by an image in which a “heart-shaped” built-in mark 25 is superimposed on a pattern of five playing cards.

  In this example, the pattern consisting of five playing cards is the original icon for the application program “POKER GAME”, and the “heart-shaped” built-in mark mark 25 superimposed on it is a third party. Quality assurance mark by the institution. By using such an icon, it is possible to indicate to the user that the application program corresponding to the icon is a program that has undergone quality assurance by a third party.

  Here, the built-in mark mark 25 is a mark created by incorporating the object identification information 11 into the original mark mark 20, and the object identification information 11 is the object data 10 surrounded by a bold line in the figure. Is a HASH value obtained by applying a predetermined HASH function to. In the case of this example, the application program 100 provided to the user is obtained by adding icon data 30 to the target data 10 surrounded by a thick line in the figure.

  In other words, the application program 100 having the file name “POKER.exe” includes icon data 30 (image data) for displaying icons as shown on the right side of the figure. In the icon data 30, the part (the part surrounded by a thick line) excluding the icon data 30 from the application program 100 is the target data 10, and the HASH value of the target data 10 is incorporated as the target identification information 11. The image data of the mark mark 25 is included.

  Therefore, in order to verify the embedded mark mark 25 for the application program 100, first, the icon data 30 is extracted from the application program 100, the embedded mark mark 25 is separated from the icon data 30, and further, Processing for separating the object identification information 11 from the built-in mark 25 is performed. Subsequently, the target data 10 is extracted from the application program 100, and new target identification information 11 is generated by applying a HASH function to the target data 10. Then, it may be determined whether or not the object identification information 11 separated from the built-in mark mark 25 matches the object identification information 11 newly generated based on the object data 10.

  On the other hand, the example shown in FIG. 15 is an example in which association is performed between the application program 100 and the built-in mark mark 25 made up of the icon itself. In the case of this example, as an icon for the application program 100, a pattern made up of five playing cards as shown on the right side of the figure is used, and this pattern itself constitutes an embedded mark mark 25.

  That is, in the case of the example shown in FIG. 15, the built-in mark mark 25 is a mark created by incorporating the object identification information 11 into the original mark mark 20 (original icon) made up of five playing cards. The target identification information 11 is a HASH value obtained by applying a predetermined HASH function to the target data 10 surrounded by a thick line in the figure. Also in this example, the application program 100 provided to the user is obtained by adding icon data 30 to the target data 10 surrounded by a thick line in the figure.

  FIG. 16 is a diagram illustrating an example in which association is performed between the program main body 210 provided as the application package 200 for the Android terminal and the built-in mark mark 25 including the icon itself. As described above, in the case of the application package 200 for the Android terminal, the icon image data is incorporated into the package as one of the resource data 220. Therefore, in the case of the illustrated example, the program body 210 is set as the target data 10, a predetermined HASH function is applied to the whole (within the bold frame), and the obtained HASH value is set as the target identification information 11 and 5 The built-in mark mark 25 is created by incorporating it into an original icon made up of a number of playing cards and accommodated as a part of the resource data 220 to constitute the application package 200.

  In this way, the application program (however, at least the portion excluding the image data of the icon) is the target data 10, and the icon itself indicating the application program or some mark incorporated as a part of the icon is incorporated. If the present invention is implemented as the chapter mark 25, it is possible to verify whether or not an illegal act has been performed on the icon.

  For example, in the case of the example shown in FIG. 14, an illegally obtained quality assurance mark is embedded in the icon of an application program that is not actually quality-assured by a third-party organization. Even if the distribution is performed by impersonating an application program whose quality is guaranteed, the impersonation is detected by the verification processing according to the present invention. Further, in the case of the example shown in FIG. 15 or FIG. 16, even if impersonation is performed in which an icon of a famous application program is incorporated and distributed as an icon of another application program, the impersonation is performed by the verification processing according to the present invention. Will be discovered.

  Of course, in any case, even if the data in the target data 10 indicated by a bold line in the figure is altered, the alteration is detected by the verification processing according to the present invention. 14, 15, and 16 are examples in which an application program is used as the target data 10, the content data is used as the target data 10, and an icon indicating the content data or a part thereof is set. It is also possible to implement the present invention as the embedded mark mark 25.

  As described above, the verification process for checking that the icon displayed as the symbol of the application program or the content data is a valid icon associated with the application program or the content data is the target of verification by the user. It can be performed manually by designating a pair of specific target data 10 and embedded mark mark 25 and giving a verification start instruction, but can also be automatically performed without receiving such an instruction. Is possible.

  In general, the storage location of icon data in an application program or content data is determined by a standard corresponding to the corresponding OS program. Therefore, when the application program 100 as shown in FIG. 14 or FIG. 15 is given, the location of the icon data 30 can be recognized, so that the icon data 30 and the target data 10 can be extracted from the application program 100, respectively. Can do. Therefore, for example, when the application program 100 is downloaded, the icon data 30 and the target data 10 are extracted, and a verification process for checking the validity of the icon data 30 is automatically performed. The same applies to the application package 200 as shown in FIG.

<<< §4. Mark on the download instruction screen >>>
In §3 described above, an example in which “application program and content data” and “mark data used as a mark mark or an icon to be displayed on the start screen and the mark data to be displayed on the start screen” are described. . In these examples, the application program and content data are stored in the user terminal device, and the associated mark data is always stored together with the application program and content data. On the other hand, the embodiment described here applies the present invention to a mark mark displayed on a download instruction screen when an application program or content data is downloaded from a server device to a user terminal device (client device). This is an applied example.

  Application programs and content data can be distributed to users in a state of being stored in a recording medium such as a CD, DVD, or USB memory, but recently, online distribution using the Internet has become mainstream. In particular, in the case of a smartphone, a form in which a user downloads and obtains a desired application or content from a dedicated site has become common. FIG. 17 is a block diagram showing a form in which the target data 10 and the embedded mark mark 25 according to the present invention are provided to the user by such a method.

  The provider of digital data stores the target data 10 and the embedded mark mark 25 in the server device 310 installed at a predetermined site in the data provision stage. When there is a download request from the client device 320 (such as a personal computer, a smart phone, or an electronic tablet) operated by the user to the server device 310, these are linked to each other in response to the request and the network N ( Online) via the Internet. The “POKER GAME” application program described in §3 can also be provided in this way.

  A site for providing an application or content is provided with a screen for introducing the contents of the object to be provided to the user and inputting a download instruction from the user. FIG. 18 is a diagram showing an example of a download instruction screen prepared on such a site. In the illustrated download instruction screen 350, six types of game applications are introduced together with the title “2013-Recommended Games-”. The user displays the screen on a terminal device such as a smartphone, and if there is a favorite application, downloads and obtains it.

  FIG. 19 is a partially enlarged view of the download instruction screen 350 shown in FIG. 18 (enlarged view of only the introduction column of the application “POKER GAME”). In this example, in the introduction column of each application, a quality assurance mark 351, an application title 352, an application icon 353, an application description 354, and a download instruction button 355 are displayed. Here, the quality assurance mark 351 is an accreditation mark indicating that the third-party organization guarantees the quality and safety of the app, and is displayed only for the app certified by the third-party organization. . In the case of the example shown in FIG. 18, the quality assurance mark 351 is displayed for “POKER GAME”, “Shogi”, and “Go”, but the other apps are not displayed.

  In addition, the download instruction button 355 displays a selling price such as “Buy for XX yen” when the app is charged, and the character “install” when the app is free. Is displayed. In any case, when the user taps the download instruction button 355, a download request for the application is sent to the server device 310, and necessary digital data is transmitted via the Internet N to the user's terminal device (client device 320). Sent to.

  As described above, when a user downloads and acquires an application from a predetermined site via a network, information displayed on the download instruction screen 350 has a very important meaning. When the user obtains an application, the user makes a selection with reference to information displayed on the download instruction screen 350. For example, in the case of the example shown in FIG. 19, the presence / absence of the quality assurance mark 351 will greatly affect the user's application selection. For this reason, it is not preferable that an illegal act is performed on the quality assurance mark 351 on the screen. Similarly, when an illegal act is performed on the icon 353 of the application, it becomes a big problem.

  Of course, in the case of a highly reliable site operated by a major business operator, sufficient management will be performed so that the download instruction screen 350 is not fraudulent. However, apps are provided on various sites, and there are sites with low reliability. In addition, there is a risk that so-called “Phishing” may lead to an unauthorized site set up by a cracker, and all information displayed on such an unauthorized site is unreliable.

  The present invention can also be used for a purpose of verifying whether or not a mark mark displayed on such a download instruction screen is genuine. For example, in the example shown in FIG. 19, the quality assurance mark 351 and the application icon 353 are mark marks to which the present invention is applied. Also, the download instruction button 355 and the application title 352 are mark marks to which the present invention is applied if they are constituted by image data. Each of these mark marks is a mark associated with the application data downloaded by tapping the download instruction button 355 or a part of the digital data as the target data 10.

  Since the user grasps these mark marks as marks associated with the application, it is preferable that the application is downloaded in a state where an illegal act related to the mark mark is being performed. Absent. If the present invention is used, specific data included in the target data 10 (in this example, a game application) or derived data that is uniquely derived based on the specific data is used as the target identification information 11. An embedded mark mark 25 is created by incorporating the mark mark 20 into the image data, and the embedded mark mark 25 is displayed on the download instruction screen 350, so that an illegal act related to the mark mark can be prevented. It becomes possible to verify whether or not it has been performed.

  Specifically, in the data provision stage, the application provider first transmits a download instruction screen 350 for downloading the target data 10 (game application) from the server device 310 to the client device 320. On the download instruction screen 350, the embedded mark mark 25 linked to the target data 10 together with a target specifying display (for example, application name) for specifying individual target data 10 (game application). Is displayed.

  The example shown in FIG. 19 is an example in which the present invention is applied using the quality assurance mark 351 as the embedded mark mark 25. In this example, the title 352 of the application functions as a target specifying display for specifying the target data 10 (an application program “POKER GAME”). Eventually, this download instruction screen 350 is arranged with object identification display (application title 352), embedded mark mark (quality assurance mark 351), and download instruction button 355 for each target data 10 (application program). It is composed of screens.

  When the user accesses the server device 310, a download instruction screen 350 as shown in FIG. 18 is displayed on the client device 320. Here, the mark mark (quality assurance mark 351) included in the download instruction screen 350 is actually the built-in mark mark 25 in which the object identification information 11 is incorporated. This is an image in which object identification information 11 created based on the object data 10 to be incorporated is incorporated.

  The download instruction screen 350 illustrated in FIG. 18 displays information about six types of game applications. Of these, “POKER GAME”, “Shogi”, and “Go” have heart-shaped quality assurance. A mark 351 is displayed. These quality assurance marks 351 look exactly the same when the user observes them with the naked eye, but in reality, each has unique object identification information 11 incorporated therein, and individual image data are different from each other. Yes.

  That is, the quality assurance mark 351 pasted in the “POKER GAME” introduction column includes the target identification information 11 derived from the application “POKER GAME” as target data, and the “Shogi” introduction column. The quality assurance mark 351 affixed to the object includes the object identification information 11 derived from the application “Shogi” as the object data, and the quality assurance mark 351 affixed to the introduction column of “Go” Includes object identification information 11 derived from the application “go” as object data.

  Therefore, for example, the image data constituting the quality assurance mark 351 affixed in the introduction column of “POKER GAME” is set as the embedded mark mark 25, and the data constituting the application program “POKER GAME” is set as the target data 10. When the mark mark verification method shown in FIG. 4 is executed, it is verified whether or not the quality assurance mark 351 is a regular mark mark associated with the application program “POKER GAME”. Can do.

  However, in order to perform such verification on the client device 320 side, both the quality assurance mark 351 (embedded mark mark 25) and the application program (target data 10) are stored in the client device 320. Need to be. In other words, when the user accesses the server apparatus 310 from the client apparatus 320 and displays the download instruction screen 350 as shown in FIG. 18, the download instruction screen 350 is displayed in the client apparatus 320. Since the display data is only downloaded, the above verification cannot be performed.

  As described above, when a download instruction is given from the user on the download instruction screen 350 (in the illustrated example, when the download instruction button 355 is tapped), the designated target data 10 ( The application program) is downloaded, and verification at the client device 320 side becomes possible only at that time. FIG. 20 shows a state where both the display data 360 for the download instruction screen and the target data 10 are downloaded in the client device 320. In general, the process of transmitting such display data 360 from the server apparatus 310 to the client apparatus 320 is not called “downloading”, but the term “downloading” is used here for convenience. To.

  In the end, in the embodiment in which the present invention is applied to the “mark mark on the download instruction screen” described in §4, on the download instruction screen 350 illustrated in FIG. When the application to be selected is selected, the embedded mark mark 25 (in this example, the quality assurance mark 351) cannot be verified. Therefore, for example, even if the quality assurance mark 351 is displayed in the introduction column of the app “POKER GAME” as in the example shown in FIG. 19, the quality assurance mark 351 taps the download instruction button 355. At this point, it is not yet possible to confirm whether or not the “POKER GAME” application downloaded by the app is a legitimately assigned mark.

  However, if the user taps the download instruction button 355 to download the application “POKER GAME”, the display data 360 and the target data 10 (“POKER GAME” are displayed in the client device 320 as shown in FIG. Since both of the application program and the application program are downloaded, the validity of the mark mark (quality assurance mark 351 included in the display data 360) associated with the target data 10 is verified. can do.

  Eventually, the user can confirm the validity of the quality assurance mark 351 displayed on the download instruction screen 350 after downloading the application “POKER GAME”. In this way, although it is a post-confirmation, if verification is performed after the application is downloaded, the user can recognize whether or not fraudulent activity has been performed on the downloaded application, so the fraud is confirmed. In such a case, it is possible to take measures such as deleting the application. If the above verification process is automatically performed immediately after downloading the application on the client device 320 side, the application is displayed on the download instruction screen 350 each time the individual application is downloaded. The validity of the quality assurance mark 351 is confirmed.

  In the embodiment described here, the mark mark verification process (steps S21 to S24) shown in FIG. 4 is executed in the following procedure. First, in the verification target input stage of step S21, the mark mark verification computer (client device 320) downloads the target data downloaded by giving a download instruction on the download instruction screen 350 and the download instruction screen 350. 10 is input. As described above, there is a time difference in the process of downloading the both. First, the download instruction screen 350 (the display data 360) is downloaded, and then the download instruction screen 350 is used. By the download instruction, the instructed application is downloaded as the target data 10. FIG. 20 shows a state in which both are downloaded in this way.

  In the target identification information separation stage in the subsequent step S22, the embedded mark associated with the downloaded target data 10 included in the download instruction screen 350 by the mark mark verification computer (client device 320). For the chapter mark 25, processing for separating the incorporated object identification information 11 is performed. In the case of the example shown in FIG. 19, the target identification information 11 is separated from the image data of the quality assurance mark 351 (embedded mark mark 25) linked to the application “target data 10” “POKER GAME”. .

  On the other hand, in the target identification information generation stage of step S23, the target identification information 11 is newly created based on the application program (target data 10) "POKER GAME" downloaded by the mark mark verification computer (client device 320). Processing to generate is performed.

  Finally, in the coincidence confirmation stage of step S24, the object identification information 11 separated in the object identification information separation stage of step S22 by the mark mark verification computer (client device 320) and the object identification information generation of step S23 are generated. On the download instruction screen 350 input in the verification target input stage of step S21 when a match is confirmed with the target identification information 11 newly generated in the stage and a positive result is obtained here. A determination is made that the quality assurance mark 351 (embedded mark mark 25) is genuine.

  In the case of the embodiment shown here, the quality assurance mark 351 is displayed on the download instruction screen 350 before verification of its validity, so as shown in steps S25 and S26 of FIG. Therefore, it is not possible to perform a selective display process (a process for displaying only when it is determined to be legitimate).

  As described above, taking the download instruction screen 350 shown in FIGS. 18 and 19 as an example, the application program to be downloaded is the target data 10 and the quality assurance mark 351 is the embedded mark mark 25 associated therewith. Although the example to which the invention is applied has been described, the target data 10 does not necessarily need to be an application program, and may be content data such as moving image data. Moreover, the pair of the target data 10 and the embedded mark mark 25 associated with each other can also be configured by any combination.

  For example, in the example shown in FIG. 19, an application title 352 (a character string “POKER GAME”) may be the target data 10 and the quality assurance mark 351 may be the embedded mark mark 25. In this case, for example, a character code constituting a character string “POKER GAME” may be incorporated into the image data constituting the quality assurance mark 351 as the target identification information 11. Then, the quality assurance mark 351 (embedded mark mark 25) is linked to the application title 352 (target data 10), and the validity of the linking relationship between the two is verified. Become.

  Similarly, an application icon 353 (an image consisting of five playing cards) is set as the target data 10, and a download instruction button 355 (image data on which “buy for 100 yen” is drawn) and the embedded mark mark 25 It is also possible to do. In this case, for example, by incorporating the HASH value for “image data of an icon made up of five playing cards” as target identification information 11 into “image data in which the characters“ purchase for 100 yen ”are drawn”, A built-in mark 25 is created. The download instruction button 355 (embedded mark mark 25) is associated with the application icon 353 (target data 10), and the validity of the association relationship between the two is verified.

  In the case of the example shown in FIG. 19, on the download instruction screen 360, components such as a quality assurance mark 351, an application title 352, an application icon 353, an application description 354, and a download instruction button 355 are allocated. In the present invention, any one of these components (or a plurality of aggregates) may be the target data 10, and another arbitrary one (however, limited to image data) is a built-in mark. By performing linking between the two as the mark 25, it is possible to verify the validity of the linking.

  As described above, when the target data 10 and the embedded mark mark 25 are selected from the components allocated on the download instruction screen 350, the download instruction as illustrated in FIG. When the screen 350 is displayed, it is possible to verify the validity of the association. That is, since both the target data 10 and the built-in mark mark 25 are included in the display data 360 of the download instruction screen, the data necessary for verification is read out from the display data 360, so that the application It becomes possible to perform verification in the stage before downloading. Therefore, for example, it is possible to perform an operation such that the quality assurance mark 351 whose validity cannot be confirmed is not displayed on the download instruction screen 350.

<<< §5. Application to Web page >>>
In the block diagram of FIG. 17, the target data 10 and the embedded mark mark 25 are stored in the server device 310 in the data provision stage, and a download request is sent from the client device 320 to the server device 310. Sometimes, in response to the request, a general form of providing digital data to be transmitted to the client device 320 via the network N by associating the target data 10 with the embedded mark mark 25 is shown. Yes. A typical example of digital data provided in such a form is a web page. Therefore, here, an embodiment in which the present invention is applied when a Web page is provided will be described.

  FIG. 21 is a diagram illustrating a display example of a general Web page 400. The Web page 400 is a page titled “GAME USERS”, and parts such as a title 410, a quality assurance mark 420, a body text 430, and a pasted image 440 are allocated as illustrated. Here, for convenience of explanation, it is assumed that the title 410 and the body text 430 are composed of text data, and the quality assurance mark 420 and the pasted image 440 are composed of image data.

  FIG. 22 is a diagram illustrating a configuration example of data necessary for displaying the Web page 400 illustrated in FIG. In this example, the Web page shown in FIG. 21 is displayed by the three data files shown. The first file is an html document file having a file name “GameUsers.html”, and is composed of data indicating the entire structure of the Web page 400 and data of a text portion. Here, this first file is referred to as a Web page display document 401. The second file is image data having the file name “LOGO.jpg” (image data of the quality assurance mark 420), and is data constituting the built-in mark 25 in the present invention. The third file is general image data (image data of the pasted image 440) having a file name “PIC.jpg”, and is referred to as image data 445 here.

  In the Web page display document 401, text data for displaying the title 410 and body text 430 in the Web page 400 and tag data (font, size, character color, etc.) for modifying these text data are designated. Data for identifying the image data to be displayed as the quality assurance mark 420 and the pasted image 440 (in this example, file names “LOGO.jpg” and “PIC.jpg”). include. In FIG. 22, the file names “LOGO.jpg” and “PIC.jpg” described at predetermined positions in the Web page display document 401 assign the embedded mark mark 25 and the image data 445 to the positions, respectively. It functions as the association information 402 indicating this.

  On the server device 310 side, a folder containing the three files shown in FIG. 22 is prepared in the storage location indicated by the predetermined URL, and the URL is designated from the Web browser program installed in the client device 320. When there is a file request, the three files in this folder may be transmitted to the client device 320. Then, the Web browser program of the client device 320 can display the Web page 400 shown in FIG. 21 based on these three files.

  Now, in the Web page 400 shown in FIG. 21, the pasted image 440 is some image related to the text, but the quality assurance mark 420 is a mark given to the Web page 400 by a third party, It plays the role of guaranteeing the quality and safety of the contents of the Web page 400 or the identity of the person who established the Web page 400. If such a quality assurance mark 420 is widely recognized, a general user can browse with confidence that the Web page with the mark is a page certified by the third party. It will be understood as a page. In addition, information posted on the Web page will be recognized as highly reliable information, and electronic commerce conducted based on the Web page will be recognized as safe.

  In such a situation, if the quality assurance mark 420 is used in an unauthorized manner, the function of the quality assurance mark 420 is impaired, and in some cases, unexpected damage may occur to the user. For example, even if the Web page 400 shown in FIG. 21 is actually a fake Web page created by a cracker and a fake quality assurance mark 420 is pasted there, as long as the user visually observes the quality, The authenticity of the guarantee mark 420 cannot be confirmed. Therefore, when the cracker guides the user to the Web page by so-called “Phishing”, the user sees the fake quality assurance mark 420 and the Web page is a safe page that has been certified by a third party. It will be misunderstood.

  The present invention is effective in preventing such illegal acts. That is, in the case of the example shown in FIG. 22, the embedded mark mark 25 having the file name “LOGO.jpg” is image data created by incorporating the object identification information 11 into the original quality assurance mark. is there. In the case of the illustrated example, the web page display document 401 surrounded by a bold line in the figure is the partial target data 10a, and the image data 445 also surrounded by a bold line is the partial target data 10b, and these two sets of partial target data 10a. , 10b are the target data 10 to which the quality assurance mark is to be applied. Then, the HASH value obtained by applying a predetermined HASH function to the entire target data 10 is set as the target identification information 11, and this is incorporated into the original quality assurance mark, thereby creating an embedded mark mark 25. doing.

  Therefore, the quality assurance mark 420 pasted on the Web page 400 shown in FIG. 21 is actually the built-in mark mark 25 in which the target identification information 11 created based on the target data 10 is embedded. This is a unique quality assurance mark associated with the target data 10. Whether or not the quality assurance mark 420 is genuine cannot be determined by naked eye observation, but can be determined by executing the procedure of the mark mark verification method shown in FIG. is there.

  Specifically, for example, an extension program for executing the procedure of the verification method is incorporated in a Web browser program installed in the client device 320, and the user can check the quality assurance mark 420 on the display screen of the Web page 400. The extension program may be executed by giving a verification start instruction designating. In this case, the extended program separates the target identification information 11 from the designated quality assurance mark 420, that is, the embedded mark mark 25 shown in FIG. 22, and concatenates the partial target data 10a and 10b shown in FIG. Based on the target data 10 obtained in this way, new target identification information 11 is generated, and it is determined whether or not they match.

  Since the verification start instruction can be performed by designating an arbitrary image, the user can give a verification start instruction designating the pasted image 440 on the display screen of the Web page 400. In that case, the extension program first separates the target identification information from the designated pasted image 440, that is, the image data 445 shown in FIG. 22 (of course, the target identification information is not incorporated in the image data 445 in the first place). Therefore, totally meaningless data is separated as object identification information). Subsequently, the extension program specifies the target data 10 obtained by connecting the partial target data 10a and the embedded mark mark 25 shown in FIG. 22 (that is, from the data necessary for displaying the Web page 400). New target identification information (for example, HASH value) is generated based on the data excluding the image data 445 for displaying the applied pasted image 440.

  Finally, it is determined whether or not the separated object identification information and the newly generated object identification information match, but naturally they do not match. As a result, a determination result indicating that the pasted image 440 is not a regular quality assurance mark is obtained. First of all, since the pasted image 440 is not a quality assurance mark, the determination result is a natural consequence.

  Of course, even if the Web page 400 is a fake page that has not been certified by a third party and the cracker has pasted the fake quality assurance mark 420, if the verification start instruction is given to the quality assurance mark 420, A determination result indicating that the mark is not a regular quality assurance mark is obtained. For example, even if a cracker copies the quality assurance mark 420 displayed on a legitimate Web page that has been certified by a third-party organization and pastes it on a fake Web page, the target identification information in the above procedure Will not match and a negative determination result will be obtained.

  The same applies to the case where the Web page itself is falsified. For example, the cracker downloads data constituting the regular web page 400 (that is, the three data files shown in FIG. 22), falsifies the contents of the web page display document 401 and the image data 445, and converts them into an arbitrary one. Let's consider the case of republishing on a server device. When a general user browses the altered Web page with a browser, the quality assurance mark 420 is displayed together with the altered page. Therefore, as far as the naked eye is observed, the altered page is a safety certificate approved by a third party. It looks like a simple page.

  However, as described above, when the user gives a verification start instruction designating the quality assurance mark 420 and executes the verification process, a negative determination result is obtained. This is because the HASH value of the target data 10 composed of the partial target data 10a and 10b is used as the target identification information 11 as shown by the bold lines in FIG. This is because a mismatch occurs.

  Theoretically, any part of the data constituting the Web page 400 except the embedded mark mark 25 can be set as the target data 10. For example, in the example shown in FIG. 22, it is possible to set only the portion of the Web page display document 401 as the target data 10 and set the HASH value for this portion as the target identification information 11. However, in this case, if the image data 445 is tampered, the verification process cannot recognize the tampering. Therefore, practically, it is obtained by setting the entire portion of the data constituting the Web page 400 excluding the embedded mark mark 25 as the target data 10 and applying a predetermined HASH function to the entire portion. The HASH value is preferably used as the object identification information 11.

  In the end, in order to apply the present invention to the Web page 400, digital data including the Web page display document 401 described in the markup language is used as the target data 10, and the Web page display document 401 includes the Web page. The link information 402 for specifying the embedded mark mark 25 to be displayed on the page 400 is included, and at the data providing stage, at least the Web page display document 401 and the embedded mark mark 25 are stored in the Web server. It is stored in the apparatus, and at least the Web page display document 401 and the embedded mark mark 25 may be transmitted to the client apparatus in response to a request from the Web browser of the client apparatus.

  FIG. 23 is a diagram showing an example in which the Web page 400 shown in FIG. 21 is transferred to another Web page 500 via a link. That is, a link button 450 is arranged on the Web page 400 shown in FIG. 23, and when a user viewing the page operates the link button 450, another Web page 500 is displayed. Become.

  In this way, when a configuration for shifting to a new Web page by a link is taken, a separate quality assurance mark may be pasted for each Web page. In the illustrated example, a quality assurance mark 420 is pasted on the Web page 400 and a quality assurance mark 520 is pasted on the Web page 500. The quality assurance mark 420 and the quality assurance mark 520 are images showing the same content to the user, and the difference between the two is not recognized when observing with the naked eye.

  However, the quality assurance mark 420 incorporates target identification information composed of HASH values created based on the entire portion of the data constituting the Web page 400 excluding the quality assurance mark 420. Thus, the quality assurance mark 520 incorporates object identification information composed of HASH values created based on the entire portion of the data constituting the Web page 500 excluding the quality assurance mark 520. In short, the quality assurance mark 420 is a unique mark associated with the web page 400, and the quality assurance mark 520 is a unique mark associated with the web page 500. Thus, if each quality assurance mark is associated with each Web page and given, it is possible to prevent the quality assurance mark from being illegally transferred.

  Some Web pages perform not only the presentation of information but also various functions in cooperation with script files. In order to apply the present invention to such a Web page, a portion including not only the Web page but also a script file may be set as target data.

  For example, a web page 600 shown in FIG. 24 is a page that requires input of an ID and a password in order to log in to a predetermined site, and as illustrated, a title 610, an ID input field 620, a password input field 630, a quality assurance A mark 640 and a login button 650 are arranged. When the user inputs a predetermined member ID in the ID input field 620, inputs a predetermined password in the password input field 630, and operates the login button 650, the input member ID and password are transmitted to the server device. The server device collates the transmitted member ID and password using the member database, and permits login if they match.

  Thus, since the member ID and the password are input in the Web page 600 constituting the login screen, if the user is guided to the fake Web page 600 by “Phishing”, the member ID input therein is input. And the password will be stolen. Therefore, as in the example shown in the figure, it is beneficial to display the quality assurance mark 640 indicating that the regular web page 600 is a page that has been certified by a third party organization. However, if forgery of the quality assurance mark 640 is permitted, it will be counterproductive.

  Therefore, if the present invention is applied to the Web page 600 shown in FIG. 24 in the same manner as in the example shown in FIG. 21, an illegal act against the quality assurance mark 640 can be prevented. That is, of the data constituting the Web page 600 shown in FIG. 24, the object identification information 11 is created with the portion excluding the quality assurance mark 640 as the object data 10, and this is incorporated into the quality assurance mark 640 and embedded mark. The mark 25 may be used.

  However, with such a method, if an illegal act of pasting the quality assurance mark 640 on the fake Web page 600 or tampering with the Web page 600 is performed, it can be recognized by the verification process. However, if a script file that performs predetermined processing in cooperation with the Web page 600 is altered, this cannot be recognized, and the input member ID and password may be stolen.

  FIG. 25 is a diagram illustrating a configuration example of a data file necessary for performing processing for displaying the Web page 600 illustrated in FIG. 24 and transmission processing of input data. As shown in the figure, three data files, a Web page display document 601, a built-in mark mark 25, and a script file 660 are used to perform the processing. The Web page display document 601 is an html format document file having a file name “GameUsersLogin.html”, and is composed of data indicating the entire structure of the Web page 600 and text portion data. The built-in mark mark 25 is image data (image data of the quality assurance mark 640) having a file name “LOGO.jpg”. The script file 660 is a script file having a file name “Script.pl”, and has a function of performing specific processing such as processing 1, processing 2,.

  As shown in the drawing, the embedded mark mark 25 having the file name “LOGO.jpg” is assigned to the Web page display document 601 or the script file 660 having the file name “Script.pl” is processed. The association information 602 indicating that entrusting is included. As a result, the Web page 600 shown in FIG. 24 displays the quality assurance mark 640 (embedded mark mark 25), and the data input in the ID input field 620 and password input field 630 is the script file 660. Will be processed.

  Here, the process 1, process 2,... Executed by the script file 660 is a process for fetching data input in the ID input field 620 and the password input field 630 and transmitting it to a predetermined server device. . However, if the cracker tampers with the script file 660 and rewrites it so that the unauthorized process X is executed instead of the process 1, it is possible to steal the member ID and password. For example, the cracker obtains the three data files shown in FIG. 25 from a regular Web page, and after altering the script file 660 therein to rewrite the process 1 to the process X, this is converted to a fake site. Let's say that it was published in.

  In this case, if the process X is a process of transmitting the input member ID and password to a predetermined server device managed by the cracker, the member ID and password input by the user guided to the fake site are: It goes into the hands of crackers. Moreover, only the script file 660 has been tampered with, and the Web page display document 601 and the built-in mark mark 25 remain normal. For this reason, an illegal act by a cracker cannot be detected only by verifying the validity of the embedded mark mark 25 with respect to the Web page display document 601.

  Therefore, in the example shown in FIG. 25, the web page display document 601 surrounded by a bold line in the figure is the partial target data 10a, and the script file 660 also surrounded by a thick line is the partial target data 10b, and these two sets of parts Digital data obtained by concatenating the target data 10a and 10b is the target data 10 to which a quality assurance mark is to be assigned. Then, the HASH value obtained by applying a predetermined HASH function to the entire target data 10 is set as the target identification information 11, and this is incorporated into the original quality assurance mark, thereby creating an embedded mark mark 25. doing.

  If such measures are taken, even if the cracker has tampered with the script file 660, the verification process for the quality assurance mark 640 will result in inconsistency of the target identification information, so that illegal acts are performed. Can be recognized. Therefore, the member ID and password can be prevented from being stolen.

  Of course, there is not necessarily one script file that performs processing linked to a Web page. In FIG. 26, the processing is handed over from the Web page display document 601 to the script file 670 having the file name “Script1.pl”, and after processing 1, processing 2,. Further, an example is shown in which processing is handed over to a script file 680 having a file name “Script2.pl” and processing 3, processing 4,... Are executed. In such an example, both the Web page display document 601 and the script files 670 and 680 are subject to unauthorized tampering.

  Therefore, in such a case, the Web page display document 601 surrounded by a thick line in the figure is the partial target data 10a, the script file 670 surrounded by the thick line is the partial target data 10b, and the script is also surrounded by the bold line. Digital data obtained by concatenating these three sets of partial target data 10a, 10b, and 10c with the file 680 as the partial target data 10c may be used as the target data 10 to which the quality assurance mark is to be assigned. If the HASH value obtained by applying a predetermined HASH function to the entire target data 10 is set as the target identification information 11 and incorporated into the original quality assurance mark, the embedded mark mark 25 is created. Even if any of the three sets of partial target data 10a, 10b, and 10c is altered, the alteration can be recognized in the verification process for the quality assurance mark.

  In the end, in order to apply the present invention to the Web page 600 with the script file, the Web page display document 601 and the script file 660 (or 670, 680) directly or indirectly referenced by the Web page display document 601 are used. ) Is used as the target data 10, and the Web page display document 601 includes association information 602 for specifying the embedded mark mark 25 to be displayed on the Web page 600. Just keep it. At this time, the original quality using the derived data (for example, HASH value) uniquely derived based on the specific data included in the Web page display document 601 and the script file 660 (or 670, 680) as the target identification information. Incorporated into the guarantee mark, the built-in mark mark 25 is created. In the data providing stage, at least the Web page display document 601, the embedded mark mark 25, and the script file 660 (or 670, 680) are stored in the Web server device, and a request from the Web browser of the client device. In response to this, these may be transmitted to the client device.

  In this §5, an example in which a quality assurance mark provided by a third-party organization is used as the built-in mark mark 25 is described. Of course, the mark mark displayed on the Web page is a quality assurance mark. It is not limited to the mark. For example, in the case of a Web page presented by a specific financial institution, the trademark mark of the financial institution itself may be pasted as the embedded mark mark 25.

<<< §6. Embodiment for giving evaluation mark >>>
Finally, an embodiment using an evaluation mark given by a third party will be described. The quality assurance marks described in the embodiments so far are marks indicating that a third-party organization has certified that the quality and safety of application programs, content data, web pages, etc. satisfy predetermined standards. . The evaluation mark described in §6 is not simply binary information indicating whether or not a predetermined standard is satisfied, but is a mark indicating a plurality of evaluation results as ranks.

  For example, FIG. 27 is a diagram illustrating an example of a mark mark used as an evaluation mark indicating an evaluation result of an application program, content data, a Web page, or the like. The evaluation mark 20A shown in FIG. 27 (a) is the highest “three star rank”, the evaluation mark 20B shown in FIG. 27 (b) is the second “two star rank”, and the evaluation mark shown in FIG. 27 (c). 20C indicates the lowest "one star rank". As described above, if the evaluation marks indicating the evaluation results in a plurality of stages are displayed in association with application programs, content data, Web pages, etc., more detailed information can be presented to the user. .

  For example, in §4, a download instruction screen 350 as shown in FIG. 18 is illustrated, and the quality assurance mark 351 (heart-shaped mark) is displayed only for some apps that have been certified by a third-party organization. An example was given. In this case, the user is only presented with the criterion of the presence or absence of the quality assurance mark. On the other hand, on the download instruction screen 370 shown in FIG. 28, any one of the three evaluation marks shown in FIG. 27 is displayed for each application.

  That is, the “three star rank” evaluation mark 25A is assigned to “POKER GAME”, and the “two star rank” evaluation mark 25B is assigned to “SUPER CHESS” and “Go”. "And" Jigsaw puzzle "are given a" one star rank "evaluation mark 25C. Here, the evaluation mark 25A is an embedded mark mark obtained by incorporating predetermined object identification information into the image data of the original evaluation mark 20A shown in FIG. 27 (a). 27B is an embedded mark mark obtained by incorporating predetermined object identification information into the image data of the original evaluation mark 20B shown in FIG. 27 (b). The evaluation mark 25C is the original mark shown in FIG. 27 (c). This is an embedded mark mark obtained by incorporating predetermined object identification information into the image data of the evaluation mark 20C.

  The method for creating the built-in mark is the same as in the embodiments described so far. For example, in the case of the example shown in FIG. 29, the application program or content data is set as the target data 10, and specific data included in the target data 10 is extracted as the target identification information 11 (hatched portion). A built-in mark mark 25A is created by being incorporated in the “three star rank” evaluation mark 20A shown in FIG. Here, for convenience of explanation, an example in which the target identification information 11 is superimposed on the evaluation mark 20A as embedded information 21A (hatched portion) is shown, but actually, as described in §2, The embedded information 21A is incorporated as a digital watermark (see FIG. 7) or an edge image (see FIG. 8) so that it cannot be recognized by normal visual observation. Of course, the entire target data 10 can be used as the target identification information 11, or the HASH value can be used as the target identification information 11.

  The embedded mark mark 25 </ b> A created in this way is provided in a state linked to the target data 10. For example, in the example shown in FIG. 28, the application program (target data 10) “POKER GAME” and the embedded mark mark 25A are “POKER GAME” from the download instruction screen on which the embedded mark mark 25A is displayed. In the relationship that the application program “GAME” is downloaded, they are linked to each other. Of course, the target data 10 does not necessarily need to be an application program or content data, and Web page data may be linked as the target data 10 as described in §5.

  In short, an application program, content data, or Web page data may be used as target data, and an evaluation mark displaying an evaluation result of the target data as an image may be used as a mark mark. Further, as described in §4, an application title, an application icon, a download instruction button, and the like displayed on the download instruction screen 370 may be associated as the target data 10.

  In §3-3, as shown in FIG. 12, the built-in mark mark 25 accommodated in the resource data 220 is read out by the activation routine of the program main body 210 serving as the target data 10, and is illustrated in FIG. An example of displaying such a startup screen was shown. FIG. 30 shows an example in which evaluation marks are displayed on the application program startup screen by the same method. In this case, both the target data 10 made up of the application program and the built-in mark mark 25A displayed when the application program is started are associated with each other.

  In the example shown in FIG. 30, every time the user activates the application program, an evaluation mark of “three star rank” is displayed on the activation screen. Moreover, if the procedure shown in FIG. 4 is incorporated in the startup routine, whether or not the association between the evaluation mark (embedded mark mark 25A) and the application program (target data 10) is valid. It is also possible to display the evaluation mark only when a positive determination result is obtained.

  In this way, if the present invention is applied to an evaluation mark indicating a multi-stage evaluation result, an evaluation mark indicating “three-star rank” is applied to target data that is originally only certified as “one-star rank”. It is possible to prevent fraudulent acts such as reattachment, and to ensure the reliability of the evaluation mark given by a third party.

  A specific system configuration example for implementing the present invention with such a third party organization is shown in the block diagram of FIG. In this example, the application developer X requests the application evaluator Y to perform evaluation mark assignment processing. The application development computer 710 and the data providing computer 720 are computers used by the application developer X. The mark mark assigning computer 730 is a computer used by the application evaluator Y. The application execution computer 740 is a computer used by a general user Z.

  First, the application developer X develops an application program using the application development computer 710. Then, the developed application program is handed over to the application evaluator Y as target data 10 and an evaluation request is made. The application evaluator Y evaluates the target data 10 (application program) that has received the evaluation request, and decides to give any of the three-level evaluation marks 20A, 20B, and 20C.

  At this time, the mark mark assigning computer 730 performs steps S11 to S13 in FIG. 3 to create any one of the embedded mark marks 25A to 25C. That is, in the mark mark capturing stage of step S11, any one of the three stages of evaluation marks 20A, 20B, and 20C is captured according to the evaluation result. In the target identification information preparation stage of step S12, the target data 10 The target identification information 11 is extracted by applying a predetermined process (for example, a process for applying a HASH function) to the target identification information. In the target identification information incorporation stage of step S13, the extracted target identification information 11 is An embedded mark mark is created by incorporating the mark into the evaluation mark.

  For example, when the evaluation result is “three star rank”, the embedded mark mark 25A is created by incorporating the object identification information 11 into the evaluation mark 20A. The built-in mark mark 25A thus created is delivered to the application developer X as an evaluation mark for the target data 10 (application program) that has received the evaluation request.

  The application developer X uses the data providing computer 720 to send the target data 10 (application program) and the delivered embedded mark mark (in the above example, the embedded mark mark 25A) to § 3 is provided by linking with the predetermined method exemplified in 3. That is, the data providing stage shown in step S14 of FIG. 3 is performed by the data providing computer 720.

  The user Z takes the target data 10 and the embedded mark mark 25A thus linked into the application execution computer 740 via the network N (Internet) and executes them. At this time, by executing the mark mark verification process shown in steps S21 to S24 of FIG. 4, the validity of the association between the target data 10 and the embedded mark mark 25A can be verified. By executing the mark mark display process shown in S25 and S26, the embedded mark mark 25A can be displayed only when the legitimacy is confirmed. That is, the application execution computer 740 functions as a mark mark verification computer and a mark mark display computer in the flowchart of FIG.

  Since the application execution computer 740 used by the user Z is actually a general-purpose information processing terminal device such as a personal computer, a smartphone, or an electronic tablet, the terminal device is used as a mark mark verification computer and a mark mark display. In order to function as an operating computer, a dedicated program (which may be an application program or an OS program) that performs such a function needs to be incorporated in the application execution computer 740. Note that the verification process algorithm shown in steps S21 to S24 in FIG. 4 is based on the evaluation mark creation process algorithm shown in steps S11 to S13 in FIG. The dedicated program incorporated in 740 is provided by the application evaluator Y.

  As described above, according to the system shown in FIG. 31, the evaluation mark (embedded mark mark) given by the application evaluator Y is always linked to the specific target data 10, and the evaluation mark Even if a fraudulent act such as replacement is performed, it is detected in a verification process performed on the user side. Also, when the target data 10 is tampered with, it is detected in the verification process. Therefore, the evaluation mark provided by the application evaluation company Y is socially reliable, and the user Z can accept the evaluation by the evaluation mark with peace of mind.

  In the block diagram shown in FIG. 31, for convenience of explanation, an arrow is drawn between the application development computer 710, the data provision computer 720, and the mark mark assignment computer 730, and data is transferred between these computers. However, in practice, the data transfer between the three parties may be performed using the network N.

  FIG. 31 shows an example in which the target data 10 to be evaluated is an application program, but the evaluation target does not necessarily have to be an application program, and may be content data or Web page data. Of course, the mark provided by the application evaluator Y is not limited to the evaluation mark indicating the evaluation result in a plurality of stages, and may be the quality assurance mark described in the examples up to §5.

  As illustrated in FIG. 27, when an evaluation mark indicating a plurality of evaluation results is used as a mark mark to be given to the target data 10, at the target identification information incorporation stage in step S13 of FIG. A terminal device used by a user if an embedded mark mark is created by incorporating an evaluation result (evaluation value: numerical data indicating the number of stars, for example) together with target identification information into image data constituting the mark mark Can recognize the evaluation result as a numerical value.

  That is, the three types of evaluation marks 20A, 20B, and 20C shown in FIGS. 27 (a), (b), and (c) are “three-star rank”, “two-star rank”, and “one”, respectively, when observed by humans. It can be recognized as a mark indicating an evaluation result of “star rank”, but for the computer, all are simple image data, and evaluation corresponding to each of the evaluation marks 20A, 20B, and 20C unless a special pattern recognition program is incorporated. The result cannot be recognized as a numerical value.

  In order to make the computer recognize the evaluation results for these evaluation marks as numerical values, as shown in FIG. 32, by incorporating the evaluation results 17 together with the target identification information 11 into the original evaluation marks as embedded information 22, The built-in mark mark 27 may be created. In the case of the illustrated example, an embedded mark mark 27 (evaluation mark) is created by incorporating the object identification information 11 and the evaluation result 17 into the evaluation mark 20A shown in FIG. For the sake of convenience of explanation, the embedded information 22 is shown as a hatched area, but it is actually incorporated by a method that cannot be recognized by normal visual observation). Here, the object identification information 11 is data created based on the object data 10 to be provided with the built-in mark mark 27 as in the above-described embodiments. On the other hand, the evaluation result 17 is data indicating the evaluation result indicated by the original evaluation mark 20A as a numerical value. In this example, numerical data indicating the number of stars (that is, numerical data “3”). It has become.

  In order to incorporate the object identification information 11 and the evaluation result 17 into the original evaluation mark 20A as the embedded information 22 having an aspect that cannot be recognized by ordinary naked eye observation, the electronic information is exactly the same as the examples described so far. A method of incorporating as a watermark (see FIG. 7) or an edge image (see FIG. 8) may be used. In the case of the example shown in FIG. 32, since both the object identification information 11 and the evaluation result 17 can be separated from the built-in mark mark 27 thus created, the numerical data “3” constituting the evaluation result 17 Thus, the computer can recognize that the embedded mark mark 27 (evaluation mark) is a mark indicating “three star rank”.

  In this way, if the computer can recognize the numerical value indicating the evaluation result for the evaluation mark given as image data, it can be verified by inquiring to the outside whether or not there is any illegal act such as replacement of the evaluation mark. It becomes possible. As already described, according to the system shown in FIG. 31, even if an illegal act such as replacement of the evaluation mark is performed, this can be detected in the verification process. However, as shown in FIG. If the built-in mark mark 27 incorporating 17 is used, fraud detection can be performed more reliably. Hereinafter, a modified example for further ensuring such fraud detection will be described.

  The basic concept of this modification is to double check the validity of the evaluation mark by introducing the evaluation result from the application execution computer 740 used by the user Z via the network N (Internet). It is in. As described above, in the application execution computer 740, when an application program (target data 10) and an evaluation mark (for example, a built-in mark mark 25A of “three star rank”) associated with each other are given, FIG. In the case of the modified example described here, the application execution computer 740 further evaluates the evaluation result inquiry computer via the network N by the verification method shown. The result is inquired, and the evaluation result of the application program is confirmed to be “three star rank”.

  The evaluation result inquiry computer may be any computer as long as it stores the evaluation results of the application evaluator Y as data. For example, in the system shown in FIG. 31, if the mark mark assigning computer 730 is provided with a function for sequentially storing the evaluation results of the target data 10 for which the evaluation request has been received as a history, the mark mark assigning computer concerned. 730 can be used as an evaluation result inquiry computer.

  FIG. 33 is a flowchart showing a basic procedure of a method for verifying and displaying the evaluation mark shown in FIG. 32 in the terminal device used by the user. Here, the procedure of steps S31 to S35 and the procedure of step S37 are executed by the mark mark verification computer (in the case of the system shown in FIG. 31, the application execution computer used by the user Z), and the procedure of step S36. Is executed by an evaluation result inquiry computer (in the case of the system shown in FIG. 31, a mark mark assigning computer managed by the app evaluator Y), and steps S38 and S39 are performed as a mark mark display computer ( In the case of the system shown in FIG. 31, it is executed by an application execution computer used by the user Z.

  First, in the verification target input stage of step S31, the mark mark verification computer performs a process of inputting target data and embedded mark marks linked to each other. Here, as the embedded mark mark, for example, as illustrated in FIG. 32, an evaluation mark 27 in which the evaluation result 17 is incorporated together with the target identification information 11 is input.

  In the target identification information separation stage of step S32, the mark mark verification computer performs a process of separating the target identification information 11 and the evaluation result 17 from the embedded mark mark 27 input in step S31. Specifically, the object identification information 11 and the evaluation result 17 can be separated by a procedure based on an algorithm reverse to the algorithm performed in the incorporation process shown in FIG.

  In the subsequent step S33 of generating the target identification information, the mark mark verification computer performs processing for generating target identification information based on the target data input in step S31. This process is exactly the same as the process in step S23 of FIG.

  Then, at the coincidence confirmation stage of step S34, the mark mark verification computer uses the object identification information separated at the object identification information separation stage at step S32 and the object identification information generated at the object identification information generation stage at step S33. Is confirmed. This process is exactly the same as the process in step S24 of FIG. By performing the process of this coincidence confirmation stage, it is possible to check the validity of the embedded mark mark for the target data. However, in the modification shown here, as a double check, the steps after step S35 are further performed. The procedure is executed.

  First, at the evaluation result inquiry stage of step S35, the mark mark verification computer inquires of the evaluation result inquiry computer about the evaluation result for the target data input at the verification target input stage of step S31. Done. In practice, the mark mark verification computer may make an inquiry to the evaluation result inquiry computer via the Internet.

  FIG. 34 is a diagram showing an example of the evaluation result list prepared in the evaluation result inquiry computer 750. As described above, the evaluation result inquiry computer 750 is a computer that stores the evaluation result for each target data. In the example shown in FIG. 34, the application name and the evaluation result (star rating) for six types of applications. The evaluation result list indicating the correspondence of the numerical values 1 to 3 indicating the number is stored. The evaluation results are the evaluation results for the six types of game applications displayed on the download instruction screen 370 of FIG.

  In step S36, an evaluation result inquiry stage is performed in which the evaluation result inquiry computer 750 returns the evaluation result for the inquired target data. For example, when an inquiry about the application “POKER GAME” is made, the evaluation result inquiry computer 750 shown in FIG. 34 answers the evaluation result “3”. This answer may also be made via the Internet.

  In the following step S37, the mark mark verification computer performs an evaluation for confirming the coincidence between the evaluation result separated in the object identification information separation stage in step S32 and the evaluation result answered in the evaluation result reply stage in step S36. Processing in the result confirmation stage is executed. For example, in the case of the evaluation mark illustrated in FIG. 32, the evaluation result “3” is separated in the target identification information separation stage in step S32. Therefore, if no fraud has been performed, the evaluation result returned from the evaluation result inquiry computer 750 is also “3”, and the two should match.

  After all, in the case of this modification, when positive results are obtained in both the coincidence confirmation stage in step S34 and the evaluation result confirmation stage in step S37, the built-in standard input in the verification target input stage in step S31. It can be determined that the chapter mark is genuine.

  Thus, when the verification based on the double check is completed, in the subsequent steps S38 and S39, the mark mark is displayed using the verification result by the mark mark display computer. That is, in step S38, branch processing is performed based on the processing results in the match confirmation stage in step S34 and the evaluation result confirmation stage in step S37. If a positive result is obtained in both, the mark mark in step S39 is obtained. The display stage is performed, but if a negative result is obtained in either one, the mark mark is not displayed.

  After all, the computer for displaying the mark mark, after determining whether the embedded mark mark is genuine or not, only when it is determined that the mark is genuine. If the mark mark is displayed and it is not determined that the mark is legitimate, the mark is not displayed at all. Alternatively, after determining whether a built-in mark mark is genuine, the built-in mark mark is normally displayed only when it is determined that the built-in mark mark is genuine, When it is not determined that the mark is legitimate, a mark (for example, an “X” mark) indicating that the built-in mark is a subject of fraud together with the built-in mark May be superimposed and displayed.

  Finally, another useful variation is described. In FIG. 32, the modification which creates the built-in mark mark 27 by incorporating both the object identification information 11 and the evaluation result 17 into the original mark mark was described. In the modification shown here, at the stage of incorporating the object identification information in step S13 of FIG. 3, the embedded mark is incorporated by incorporating the expiration date of the mark together with the object identification information into the image data constituting the mark. It is to create a mark.

  FIG. 35 shows an example in which the built-in mark mark 28 is created by incorporating all three pieces of information including the object identification information 11, the evaluation result 17, and the expiration date 18 into the original mark mark. That is, the object identification information 11, the evaluation result 17, and the expiration date 18 are incorporated as the embedded information 23 in the embedded mark mark 28 (in this example, the evaluation mark). In FIG. 35, the embedded information 23 is shown as a hatched area for convenience of explanation, but actually, as in the example described so far, the embedded information 23 is a digital watermark (see FIG. 7) or It is incorporated as an edge image (see FIG. 8) and cannot usually be recognized with the naked eye.

  Specifically, in the example shown in FIG. 35, the embedded mark mark 28 incorporates information on the expiration date 18 indicating the date “December 31, 2013”. This indicates that the expiration date of the evaluation mark indicating “three star rank” given as the built-in mark mark 28 is “December 31, 2013”.

  As described above, in the modified example using the mark in which the object identification information 11, the evaluation result 17, and the expiration date 18 are incorporated as the built-in mark mark 28, in step S32 in FIG. From the built-in mark mark 28, three types of information, that is, the object identification information 11, the evaluation result 17, and the expiration date 18 can be separated. Then, the mark mark verification computer can execute an expiration date confirmation stage for confirming whether or not the current time is within the period indicated by the expiration date 18. Therefore, in step S38, in addition to the coincidence confirmation stage in step S34 and the evaluation result confirmation stage in step S37, the embedded mark mark 28 is displayed only when a positive result is obtained in the expiration date confirmation stage. It can be determined that it is legitimate.

  In the case of the above example, after the expiration date “December 31, 2013” has passed, it is determined that the built-in mark mark 28 is not a legitimate mark, and the mark mark display stage in step S39. Will not be executed.

  The example shown in FIG. 35 is an example using the embedded mark mark 28 in which three pieces of information of the object identification information 11, the evaluation result 17, and the expiration date 18 are incorporated, but of course, to the evaluation result inquiry computer. When the embodiment in which the evaluation result is not referred to is taken, it is sufficient to use an embedded mark mark in which two pieces of information of the object identification information 11 and the expiration date 18 are incorporated. In this case, steps S35 to S37 in FIG. 33 are omitted, and a positive result is obtained in both the coincidence confirmation stage (step S34) and the expiration date confirmation stage (not shown in FIG. 33). In such a case, it may be determined that the embedded mark mark input in the verification target input stage (step S31) is genuine.

  Of course, the mark mark incorporating the expiration date information does not necessarily have to be an evaluation mark, and may be a quality assurance mark or a trademark mark. For example, when a license agreement for a trademark right with a limited expiration date is entered, the trademark mark cannot be used after the expiration date. In such a case, if a built-in mark mark in which the expiration date information is incorporated in the trademark mark is created and distributed, the terminal device used by the user will automatically The trademark mark can be prevented from being displayed on the screen.

10, 10A to 10E: target data 10a, 10b, 10c: partial target data 10H: primary derived data 11, 11A to 11C: target identification information 11D: derived data (HASH value)
11E: Secondary derived data (encrypted HASH value)
17: Evaluation result 18: Expiration date 20: Mark mark 20A to 20C: Mark mark (evaluation mark)
21, 21A: Built-in information 22: Built-in information 23: Built-in information 25: Built-in mark marks 25A to 25C: Built-in mark marks (evaluation marks)
26: Edge image 27: Embedded mark mark (evaluation mark)
28: Built-in mark (evaluation mark)
30: Document data 100: Application program 200: Application package 210: Program main body 215: Association information 220: Resource data 230: Subroutine group 240: Auxiliary file 310: Server device 320: Client device 350: Download instruction screen 351: Quality Guarantee mark 352: App title 353: App icon 354: App description 355: Download instruction button 360: Download instruction screen display data 370: Download instruction screen 400: Web page 401: Web page display document 402 : Association information 410: Title 420: Quality assurance mark 430: Text text 440: Paste image 445: Image data 450: Link button 500: Web page 600: Web 601: Web page display document 602: Association information 610: Title 620: ID input field 630: Password input field 640: Quality assurance mark 650: Login button 660: Script file 670: Script file 680: Script file 710: Application Development computer 720: Data providing computer 730: Mark mark assigning computer 740: Application execution computer (Mark mark verification / display computer)
750: Evaluation result inquiry computer F: Folder K: Encryption key N: Network (Internet)
S11 to S39: Steps X in the flowchart: App developer Y: App evaluator Z: User

Claims (28)

A method of providing digital data with a predetermined mark mark,
A mark mark acquisition stage in which a mark mark assigning computer acquires image data constituting the mark mark, and
The mark mark assigning computer prepares specific data included in the target data to which the mark mark is to be assigned, or derived data that is uniquely derived based on the specific data as target identification information. The target identification information preparation stage;
A mark mark giving computer that incorporates the object identification information into the image data constituting the mark mark based on a predetermined algorithm, thereby creating an object identification information incorporation step for creating an embedded mark mark;
A data providing stage in which the data providing computer provides the target data and the embedded mark mark in association with each other;
A method for providing digital data with a mark, characterized by comprising: The providing method according to claim 1,
Data file or program file is the target data,
A method for providing digital data with a mark mark, characterized in that, in the target identification information preparation stage, the file name of the data file or program file is prepared as target identification information. The providing method according to claim 1 or 2,
In the target identification information preparation stage, a function value obtained by applying a predetermined unidirectional function to specific data constituting part or all of the target data is prepared as target identification information. Providing digital data with mark marks. In the providing method in any one of Claims 1-3,
At the target identification information preparation stage, in the process of preparing the target identification information, with the mark mark characterized by performing encryption processing using a predetermined encryption key and preparing the encrypted target identification information How to provide digital data. In the providing method in any one of Claims 1-4,
A method of providing digital data with a mark mark, characterized in that an embedded mark mark is created by embedding the target identification information as a digital watermark in the image data constituting the mark mark in the step of incorporating the target identification information . In the providing method in any one of Claims 1-4,
An edge image composed of data constituting the object identification information outside the mark mark by combining the image data constituting the mark mark and the data constituting the object identification information at the stage of incorporating the object identification information A method for providing digital data with a mark mark, characterized in that a composite image to which is added is generated and the composite image is used as an embedded mark mark. In the providing method in any one of Claims 1-6,
A method for providing digital data with a mark mark, characterized in that the target data and the embedded mark mark are accommodated in the same folder or the same package at the data providing stage, and both are linked and provided. . The providing method according to claim 7,
The target data consists of application programs or content data,
A mark characterized in that, in the data providing stage, the application program or the content data is provided in the same folder or the same package as the document data to which the associated embedded mark mark is assigned. How to provide marked digital data. In the providing method in any one of Claims 1-6,
In the target data, include the link information for specifying the embedded mark mark linked to the target data,
A method for providing digital data with a mark mark, characterized in that, in a data providing step, target data and a built-in mark mark linked to each other by the tied information are provided. The providing method according to claim 9,
Digital data with a mark mark, wherein the target data is constituted by an application program, and the application program has a function of displaying a screen including a built-in mark mark specified by the association information when the program is executed How to provide data. In the providing method in any one of Claims 1-6,
The target data consists of application programs or content data,
In the data providing stage, the application program or the content data is provided together with an icon including an embedded mark mark or an icon constituted by the embedded mark mark itself. How to provide. In the providing method in any one of Claims 1-6,
In the data provision stage, the target data and the embedded mark mark are stored in the server device, and when a download request is sent from the client device to the server device, the target data and A method for providing digital data with a mark mark, wherein the embedded mark mark is linked to the client apparatus and transmitted to the client device. The providing method according to claim 12,
In the data provision stage, when the download instruction screen for downloading the target data is transmitted from the server device to the client device, and the download instruction is given on this download instruction screen, the target data instructed Is downloaded, and on the download instruction screen, an embedded mark mark associated with the target data is displayed together with a target specifying display for specifying individual target data. A method for providing digital data with a mark mark, characterized by: The providing method according to claim 13,
A method for providing digital data with a mark mark, characterized in that the download instruction screen is composed of a screen on which target identification display, built-in mark mark, and download instruction button are arranged for each target data. The providing method according to claim 12,
The target data includes a Web page display document described in a markup language, and the Web page display document includes association information for specifying an embedded mark mark to be displayed on the Web page. Included,
In the data providing stage, the Web page display document and the embedded mark mark are stored in a Web server device, and the Web page display document and the set are received in response to a request from the Web browser of the client device. A method of providing digital data with a mark mark, characterized by transmitting a built-in mark mark to the client device. The providing method according to claim 15,
The target data includes a Web page display document and a script file that is directly or indirectly referred to by the Web page display document, and is displayed on the Web page in the Web page display document. Includes pegging information to identify the embedded mark that should be
A mark, characterized in that a mark mark assigning computer prepares derived data uniquely derived based on specific data included in the Web page display document and the script file as target identification information. How to provide marked digital data. In the providing method in any one of Claims 1-16,
A method for providing digital data with a mark mark, characterized in that an application program, content data, or Web page data is used as target data, and an evaluation mark displaying an evaluation result of the target data as an image is used as a mark mark. The providing method according to claim 17,
A method for providing digital data with a mark mark, wherein the embedded mark mark is created by incorporating the evaluation result together with the target identification information into the image data constituting the mark mark at the stage of incorporating the target identification information. . In the providing method in any one of Claims 1-18,
With a mark mark, which is characterized by creating an embedded mark mark by incorporating the expiry date of the mark mark together with the target identification information into the image data constituting the mark mark at the stage of incorporating the target identification information How to provide digital data. About the digital data provided by the providing method according to any one of claims 1 to 19, a mark mark verification method for verifying a mark mark associated with target data,
A verification mark input stage in which a mark mark verification computer inputs target data and embedded mark marks linked to each other;
A mark identification computer separates the object identification information separating step for separating the object identification information incorporated in the built-in mark,
A mark identification computer generates a target identification information generating step for generating target identification information based on the target data;
A mark confirmation computer performs a match check between the target identification information separated in the target identification information separation step and the target identification information generated in the target identification information generation step;
And determining that the built-in mark mark input in the verification target input stage is authentic when a positive result is obtained in the matching confirmation stage. How to verify chapter marks. About the digital data provided by the providing method according to claim 13 or 14, a mark mark verification method for verifying a mark mark linked to target data,
A verification mark input stage in which the mark mark verification computer inputs a download instruction screen and target data downloaded by giving a download instruction on the download instruction screen;
Target identification for separating the embedded target identification information for the embedded mark mark that is included in the download instruction screen and that is associated with the downloaded target data, by the mark mark verification computer An information separation stage;
The mark mark verification computer generates target identification information based on the downloaded target data, and generates target identification information.
A mark confirmation computer performs a match check between the target identification information separated in the target identification information separation step and the target identification information generated in the target identification information generation step;
When a positive result is obtained in the matching confirmation stage, it is determined that the embedded mark mark on the download instruction screen input in the verification target input stage is genuine The mark mark verification method characterized by the above. About the digital data provided by the providing method according to claim 18, a mark mark verification method for verifying a mark mark linked to target data,
A verification mark input stage in which a mark mark verification computer inputs target data and embedded mark marks linked to each other;
A mark identification computer, a target identification information separation step for separating the target identification information and the evaluation result embedded in the embedded mark mark;
A mark identification computer generates a target identification information generating step for generating target identification information based on the target data;
A mark confirmation computer performs a match check between the target identification information separated in the target identification information separation step and the target identification information generated in the target identification information generation step;
An evaluation result inquiry in which the mark mark verification computer inquires the evaluation result for the target data input in the verification target input stage to the evaluation result reference computer storing the evaluation result for each target data. Stages,
An evaluation result answering stage in which the evaluation result inquiry computer answers an evaluation result for the inquired target data;
A mark mark verification computer, an evaluation result confirmation stage for confirming a match between the evaluation result separated in the object identification information separation stage and the evaluation result answered in the evaluation result reply stage;
And a built-in mark mark input in the verification target input stage is genuine when a positive result is obtained in both the coincidence confirmation stage and the evaluation result confirmation stage. A method for verifying a mark, characterized by making a judgment. A method for verifying a mark mark for verifying a mark mark linked to target data for digital data provided by the providing method according to claim 19,
The mark mark verification computer inputs the target data and the embedded mark mark that are linked to each other,
The mark mark verification computer separates the object identification information incorporated in the built-in mark mark and the object identification information separation stage for separating the expiration date;
A mark identification computer generates a target identification information generating step for generating target identification information based on the target data;
A mark confirmation computer performs a match check between the target identification information separated in the target identification information separation step and the target identification information generated in the target identification information generation step;
The mark mark verification computer checks whether the current time is within the expiration date separated in the target identification information separation step,
And the embedded mark mark entered in the verification target input stage is genuine when a positive result is obtained in both the match confirmation stage and the expiration date confirmation stage. A method for verifying a mark, characterized by making a judgment. A mark mark display method using the mark mark verification method according to claim 20,
After the mark mark display computer is judged to be genuine with respect to the built-in mark mark, the built-in mark only when it is judged to be legitimate. If the mark is normally displayed and it is not determined that the mark is genuine, the mark is not displayed at all, or the mark is not displayed together with the mark. A method for displaying a mark mark, characterized by displaying a mark indicating that it has been a subject of fraud.   A program for causing a mark mark assigning computer to execute an object identification information preparation stage, a mark mark capture stage, and an object identification information incorporation stage in the providing method according to any one of claims 1 to 19.   A program for causing a data providing computer to execute a data providing step in the providing method according to claim 1.   A program that causes a mark mark verification computer to execute the mark mark verification method according to any one of claims 20 to 23.   28. The program according to claim 27, wherein the program itself or a part thereof constitutes target data to which a mark mark is added or a part thereof.

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