KR20240103528A - Image authentication system and method through metadata identifier insertion - Google Patents

Abstract

The present invention relates to an image data authentication system and method through insertion of a meta information identifier. Specifically, when a user terminal sends captured image data to an authentication server, the authentication server determines the meta information identifier of the image data received from the user terminal. It relates to an authentication system and method for image data that verifies existence, performs authentication, issues an authentication code for the image data, and provides it to a mobile terminal. For this purpose, the image data authentication system according to the present invention includes a user terminal that generates and inserts a meta information identifier for the captured image when camera shooting is completed through an application, and receives image data from the user terminal and collects the corresponding image data. If there is a meta information identifier, it includes an authentication server that issues an authentication code.

Description

Image data authentication system and method through metadata identifier insertion}

The present invention relates to an image data authentication system and method through insertion of a meta information identifier. In detail, an identifier representing meta information of the image, such as location information and time information of image data captured by a user terminal, is generated and inserted into the image. This relates to a system and method for authenticating image data through insertion of meta information identifiers, where, when sent to an authentication server, the authentication server verifies the identifier of the image data, performs authentication, issues an authentication code for the image data, and provides it to the user terminal.

When you take a photo using a digital camera or mobile device, it is saved in the internal memory as an image file. When an image file is saved, the shooting date and time, and GPS location information may be added.

Images taken with a camera are stored in a non-secure image format, and the time information and location information (shooting time and location) added to the image format, that is, the meta information of the image, can be easily manipulated or changed by the application program. .

Therefore, users cannot distinguish the authenticity of the shooting time and location of photos of goods or products posted on various websites such as used trading, real estate, and road view maps, so they cannot trust the safety and accuracy of trading goods or products or viewing information. There is no such thing.

Korean Patent No. 10-0699236

The present invention was created to solve the above problems, and the purpose of the present invention is to verify the accuracy of information about the shooting time and shooting location of photos or videos posted on various websites to ensure the safety of transactions and information viewing. It is intended to promote.

To this end, the image data authentication method according to the present invention is an authentication method through insertion of a meta information identifier of image data in a user terminal, comprising the steps of driving the camera of the user terminal when an execution event is input from the user, and Creating an image by photographing an object and then storing it in the memory of the user terminal, generating an identifier using location information and time information when the image was created, and inserting the identifier into the generated image. and transmitting the image into which the identifier is inserted to an authentication server.

Here, the identifier is characterized as a QR code or watermark.

A user terminal for image data authentication according to the present invention includes a camera that captures an object and generates an image, a camera driver that drives the camera when an execution event is input from the user, and location information and time of the photo taken with the camera. An identifier generating unit that generates an identifier containing information, an identifier inserting unit that inserts the generated identifier into a photo taken with the camera, and a communication unit that transmits the image into which the identifier is inserted to an authentication server. Do this.

The application for image data authentication according to the present invention is an application stored in a computer-readable recording medium, the application comprising the steps of confirming location information and time information of a photo taken with a camera, and including the confirmed location information and time information. It is characterized by executing the steps of generating an identifier, inserting the generated identifier into the captured photo, and transmitting the photo with the inserted identifier to an authentication server.

The data image authentication method according to the present invention is an authentication method of image data performed by an authentication server, comprising the steps of receiving an image from an authentication application executed on a user terminal, and confirming the presence or absence of an identifier in the received image. , If the identifier in the received image is confirmed, issuing an authentication code to the user terminal, and if the identifier of the image is not confirmed, transmitting an authentication rejection message to the user terminal.

The data image authentication method according to the present invention is an authentication method of image data performed by an authentication server, comprising the steps of receiving an image from an authentication application executed on a user terminal, and confirming the presence or absence of an identifier in the received image. , and transmitting an authentication rejection message to the user terminal if the identifier in the received image is not confirmed.

In the image data authentication method, when the identifier in the received image is confirmed by the authentication server, the location information and time information of the image are compared with the location information and time information included in the identifier, and if they match, an authentication code is issued to the user terminal. and, if they do not match, further comprising transmitting an authentication rejection message.

A data authentication method according to another embodiment of the present invention is an authentication method of image data performed in a user terminal, comprising the steps of detecting execution of an external manipulation program other than an authentication application executed in the user terminal, and executing the external manipulation program. When detected, it includes the step of outputting a message indicating that image transmission is impossible, and the step of transmitting the external manipulation program detection signal to an authentication server.

The image data authentication method further includes the step of receiving an image rejection message from the authentication server when the user terminal transmits image data when the authentication server receives the external manipulation program detection signal.

As described above, for the image data received from the user terminal, the authentication server authenticates only the images containing the meta information identifier of the image and issues an authentication code, so that a third party can later use the image data posted on various websites. By checking the authentication code, you can confirm the authenticity of the image, so you can safely trade the products in the image or trust the information the image represents.

Additionally, the present invention can provide enhanced authentication by automatically rejecting authentication when an operation to manipulate information on an image captured by a user terminal is detected.

After taking a photo with a user terminal, meta information about the image is automatically saved in the process of saving the captured image in memory, but the meta information of the image can be manipulated through additional operations such as changing the terminal system time or manipulating GPS. This is possible. Therefore, it detects that an external application other than the authentication application stored in the user terminal has been executed, outputs a notification on the execution screen of the user terminal, and transmits an external application detection signal to the authentication server.

The external application detection signal is recorded in the authentication server until the execution of the external application is not detected. If the execution of the external application is not detected, the user terminal transmits a normal signal to the authentication server. The authentication server can prevent meta information from being manipulated or a manipulated image from being transmitted to the authentication server by automatically rejecting authentication for all image data received from the user terminal until a normal signal is received from the user terminal.

1 is a configuration diagram of an authentication system for image data according to the present invention.
Figure 2 is a diagram showing the internal configuration of a user terminal according to the present invention.
Figure 3 is an internal configuration diagram of the authentication server according to the present invention
Figure 4 is a signal flow diagram showing the authentication process in the image data authentication system according to the present invention.
Figure 5 is a flowchart showing the process of transmitting image data from the user terminal to the authentication server according to the present invention.
Figure 6 is a flow chart showing the authentication process in the authentication server according to the present invention.
Figure 7 is a diagram showing an execution screen of a user terminal according to the present invention.
Figure 8 is a signal flow diagram showing the authentication process in the image data authentication system according to another embodiment of the present invention.
Figure 9 is a configuration diagram of an image data authentication system according to another embodiment of the present invention.
Figure 10 is a diagram showing an execution screen of a user terminal according to another embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings. The configuration of the present invention and its operational effects will be clearly understood through the detailed description below.

Prior to the detailed description of the present invention, please note that the same components are indicated by the same symbols as much as possible even if they are shown in different drawings, and detailed descriptions of known components will be omitted if it is judged that they may obscure the gist of the present invention. do.

Figure 1 schematically shows the configuration of an image data authentication system according to the present invention.

Referring to FIG. 1, the image data authentication system consists of a user terminal 100 and an authentication server 200.

The user terminal 100 is equipped with a digital camera, GPS, and communication functions, and stores and executes an application for image data authentication. The user terminal 100 activates digital camera, GPS, and communication functions through an application.

When the user terminal 100 activates a digital camera through an application to take pictures, GPS location information and time information (hereinafter referred to as 'meta information') at the time of shooting are generated, and the application of the user terminal 100 is used for camera shooting. An identifier representing meta information at the time of shooting is inserted into the image data, and the user terminal 100 transmits the image data with the identifier inserted to the authentication server 200 through a communication network.

The user terminal 100 sends image data to the authentication server 200 and then receives an authentication code or authentication rejection message from the authentication server 200.

The user terminal 100 can be a mobile terminal such as a smartphone or tablet PC, but can also be a general digital camera equipped with Wi-Fi communication and capable of installing applications.

The authentication server 200 is an authentication management device owned by a site or organization that performs authentication for photos or videos. The authentication server 200 receives and reads image data from the user terminal 100 and issues an authentication code for the image data or generates an authentication rejection message.

Figure 2 shows the internal configuration of a user terminal according to the present invention.

Referring to FIG. 2, the user terminal 100 includes a camera driver 102, a camera 104, an identifier generator 106, an identifier insertion unit 108, a communication unit 110, etc.

The camera driving unit 102 transmits a camera driving command signal to the camera 104 when an execution event is input from the user.

The camera 104 captures an object and generates image data.

The identifier generator 106 generates a meta information identifier for image data generated by driving the camera 104.

The meta information identifier can be a watermark or QR code.

The identifier insertion unit 108 inserts the meta information identifier for the image data generated by the identifier generator 106 into the image data.

The communication unit 110 serves to transmit an image with an identifier inserted to the authentication server.

Figure 3 shows the internal configuration of the authentication server according to the present invention.

Referring to FIG. 3, the authentication server 200 includes a data communication unit 202, a reading unit 204, an authentication unit 206, a DB 208, and the like.

The data communication unit 202 is connected to a communication network and receives image data from the user terminal 100. The data communication unit 202 receives an authentication code or authentication rejection message from the authentication unit 206 and transmits it to the user terminal 100.

The reading unit 204 is a part that reads the presence or absence of a meta information identifier. When the user terminal 100 transmits image data to the authentication server 200, the image data can be scanned to determine whether a metainformation identifier exists, and whether or not an identifier signal is transmitted is determined.

The authentication unit 206 receives an identifier signal from the reading unit 204 and performs authentication on the image data.

The authentication unit 206 issues an authentication code when an identifier signal is received from the reading unit 204, generates an authentication rejection message when the identifier signal is not received, and inserts the authentication code into the image data to determine if the authentication code is present. Image data, that is, authenticated image data, may be transmitted to the data communication unit 202.

Figure 4 shows the authentication process in signal flow in the image data authentication system according to the present invention.

Referring to FIG. 4, first, the user terminal 100 transmits image data in which the meta information identifier of the captured image is inserted to the authentication server 200 (S10). A process in which the user terminal 100 transmits image data with a meta information identifier inserted to the authentication server 200 will be described in detail with reference to FIG. 5 .

Figure 5 shows the process of transmitting image data from the user terminal to the authentication server according to the present invention.

When the user terminal 100 takes a picture using a camera while an application for image data authentication is running (S100), it generates a meta information identifier when taking the picture (S110).

The user terminal 100 inserts the generated meta information identifier into image data created by camera capture (S120).

The user terminal 100 inserts the meta information identifier into the image data, checks the network connection status, and, if the network is connected, transmits the image data with the inserted identifier to the authentication server 200 (S130). If the network is not connected or is unstable, the image data with the meta information identifier inserted is stored in the internal memory, and then the network connection status is periodically checked and retransmission is attempted.

In this way, when the user terminal 100 sends image data with a meta information identifier inserted to the authentication server 200, the authentication server 200 receives the image data and performs an authentication process (S12). The image data authentication process of the authentication server 200 will be described in detail with reference to FIG. 6.

Figure 6 shows the authentication process in the authentication server according to the present invention.

When the authentication server 200 receives image data from the user terminal 100 (S200), it scans and reads the received image (S210).

The authentication server 200 determines the presence or absence of a meta information identifier in the received image data (S220), and when it is determined that there is a meta information identifier in the image data, the authentication server 200 receives information about the meta information identifier present in the received image data. It is determined whether the meta information of one image matches (S230).

If it is determined that the received image data does not have a meta information identifier, an authentication rejection message for the image data is generated (S250).

If it is determined that the meta information identifier information in the received image data matches the meta information of the received image, an authentication code is issued (S240), and the meta information identifier information in the received image data does not match. If determined, an authentication rejection message for the image data is generated (S250).

In this way, when the authentication server 200 refuses to authenticate the image data, it transmits an authentication rejection message to the user terminal 100 (S14), and when authentication is performed, the issued authentication code is transmitted to the user terminal 100. (S16).

The authentication code issued by the authentication server 200 may consist of ID or URL information. In Figure 3, the authentication server 200 transmits the authentication code itself to the user terminal 100, but the authentication code can be inserted into the image data and transmitted.

When the authentication server 200 issues an authentication code for image data, the user terminal 100 uploads the image and authentication code to sites such as used trading and real estate or updates information on Road View.

Specifically, the user terminal 100 connects to the service server 300 of various transaction sites and uploads an authenticated photo or video (S18). At this time, the user terminal 100 can upload the photo and the authentication code separately, or upload a photo with the authentication code inserted.

Afterwards, the third-party terminal 400 accesses the service server 300, searches for the uploaded photo, and requests authentication confirmation for the photo (S20).

The third-party terminal 400 can confirm the authentication of the photo using the authentication code attached with the uploaded photo. That is, the third-party terminal 400 enters the ID while connected to the service server 300 or connects to the authentication server 200 through a URL link and receives location information authenticated for the photo from the authentication server 200. and time information is received (S22).

The authentication code may consist of a symbol or mark containing ID or URL information for authentication confirmation connection.

As the popularity or reliability of the authentication site or organization that manages the authentication server 200 increases, the awareness of the authentication code symbol or mark may increase. In this situation, the third-party terminal 400 may display the authentication code symbol or mark on the photo. The fact that is added shows that the photo has been authenticated and that the authentication can be trusted.

Figure 7 (a) shows what is displayed on the screen of the user terminal 100 when the meta information identifier 20 is inserted into a photo taken by pressing the camera button 18 after executing the application.

When the user completes the shooting, the photo taken is enlarged and displayed as shown in (b) of Figure 7. If the user wants to send the image to the authentication server 200, he or she can send the image by pressing the send button 22, and if he or she likes the photo taken If it is determined that it is difficult to identify the object, such as because it is not lifted or shaken, press the retake button (24) to return to the screen where you can take a picture again.

In this way, when the meta information identifier 20 is inserted after the user photographs the object (18), the user terminal 100 transmits the photographed image data to the authentication server 200 (S10).

Figure 8 shows the authentication process in signal flow in an image data authentication system according to another embodiment of the present invention.

Referring to FIG. 8, when an application stored in the user terminal 100 is first executed (S30) and an object is photographed (S36), the application detects the execution of an external application, thereby capturing image data captured by the user or retrieved from the gallery. Detects actions that attempt to manipulate .

When the application detects the execution of an external application, it transmits an external manipulation program detection signal to the authentication server 200 (S38), and the user terminal 100 sends a message notifying that image transmission to the authentication server 200 is impossible. Print (S40).

When the authentication server 200 receives the external manipulation program detection signal, it automatically rejects authentication (S42). If the external manipulation program is not detected, the application transmits an external manipulation program detection end signal to the authentication server 200 (S44), and the authentication server 200 allows authentication upon receiving the external manipulation program detection end signal. Do it (S48).

The subsequent image data authentication process is the same as the first embodiment of the present invention. The image data authentication process using detection of execution of an external manipulation program according to another embodiment will be described in detail with reference to FIG. 9.

Figure 9 shows the configuration of an image data authentication system according to another embodiment of the present invention.

Referring to FIG. 9, when the authentication server 200 receives an external manipulation program detection signal from the user terminal 100 (S220), it automatically refuses to receive image data from the user terminal 100 (S230).

The application stored in the user terminal 100 detects the user's attempt to manipulate image data captured or retrieved from the gallery by detecting the execution of an external application.

When the execution of an external application is detected, the application stored in the user terminal 100 transmits an external application detection signal to the authentication server 200, and sends image data to the authentication server 200 until the execution of the external application is not detected. Block transmission.

When the application stored in the user terminal 100 determines that the execution of an external application is not detected, it transmits an external manipulation program detection termination signal to the authentication server 200.

The authentication server 200 records that an external application detection signal has been received, and automatically records all image data received from the user terminal 100 until it receives the external manipulation program detection end signal from the user terminal 100. Reject authentication.

Figure 10 shows an execution screen of a user terminal according to another embodiment of the present invention.

Figure 10 (a) shows the image taken after executing the application and pressing the camera button 18 to take a photo and displaying the photo in an enlarged format.

Here, when executing an external application, the application stored in the user terminal 100, as shown in (b) of FIG. 10, displays an external program detection notification message and a message notifying that authentication of the image is impossible on the user terminal execution screen. .

The above description is merely an illustrative description of the present invention, and various modifications may be made by those skilled in the art without departing from the technical spirit of the present invention.

Accordingly, the embodiments disclosed in the specification of the present invention do not limit the present invention. The scope of the present invention should be interpreted in accordance with the scope of the patent claims below, and all technologies within the equivalent scope thereof should be interpreted as being included in the scope of the present invention.

100: user terminal 200: authentication server
202: data communication unit 204: reading unit
206: Authentication department 208: DB
300: Service server 400: Third party terminal

Claims (9)

In the authentication method through insertion of meta information identifier of image data in the user terminal,
When an execution event is input from the user, driving the camera of the user terminal;
capturing an object using the camera to create an image and storing it in the memory of the user terminal;
generating an identifier using location information and time information when generating the image;
inserting the identifier into the generated image;
A method comprising transmitting the image into which the identifier is inserted to an authentication server. According to clause 1,
A method wherein the identifier is a QR code or watermark. A camera that captures an object and creates an image,
a camera driver that drives the camera when an execution event is input from the user;
an identifier generator that generates an identifier including location information and time information of a photo taken with the camera;
an identifier insertion unit for inserting the generated identifier into a photo taken with the camera;
A user terminal comprising a communication unit that transmits the image into which the identifier is inserted to an authentication server. In the application stored on a computer-readable recording medium,
The application includes the steps of checking location information and time information of photos taken with a camera,
generating an identifier including the confirmed location information and time information;
inserting the generated identifier into the captured photo;
An application characterized in that the step of transmitting a photo with the identifier inserted thereto to an authentication server. In the authentication method of image data performed by the authentication server,
Receiving an image from an authentication application executed on the user terminal;
Confirming the presence or absence of an identifier in the received image;
A method comprising the step of issuing an authentication code to the user terminal if the identifier in the received image is confirmed, and transmitting an authentication rejection message to the user terminal if the identifier of the image is not confirmed. In the authentication method of image data performed by the authentication server,
Receiving an image from an authentication application executed on the user terminal;
Confirming the presence or absence of an identifier in the received image;
and transmitting an authentication rejection message to the user terminal if the identifier in the received image is not confirmed. According to clause 6,
When the identifier in the received image is confirmed, the location information and time information of the image are compared with the location information and time information included in the identifier. If they match, an authentication code is issued to the user terminal, and if they do not match, an authentication rejection message is sent. A method characterized in that it further comprises the step of transmitting. In the method of authenticating image data performed on a user terminal,
Detecting execution of an external manipulation program other than the authentication application executed on the user terminal;
outputting a message indicating that image transmission is impossible when the external manipulation program is detected;
A method comprising transmitting the external manipulation program detection signal to an authentication server. According to clause 8,
The method further comprising receiving an image rejection message from the authentication server when the user terminal transmits image data when the authentication server receives the external manipulation program detection signal.