Electronic device and method for generating noise magnetic field for protecting fingerprint information

Abstract

An electronic device and a method for generating a noise magnetic field for protecting fingerprint information are provided. The method for generating a noise magnetic field for protecting fingerprint information may comprise the operations of: activating a function for fingerprint authentication for a user on the basis of a user input in an application; identifying an attribute of the noise magnetic field to be generated in an electronic device according to the function being activated; generating the noise magnetic field from the electronic device on the basis of the attribute of the noise magnetic field while the function is activated; and detecting a fingerprint of the user for the fingerprint authentication during the generation of the noise magnetic field.

Description

Electronic device and method for generating a noise magnetic field to protect fingerprint information

[0001] The present disclosure relates to an electronic device and method for generating a noise magnetic field to protect fingerprint information.

[0002] As the functionality available in electronic devices has diversified, the security of information stored in them has become increasingly important, and authentication technologies based on the user's biometric information are being developed. In particular, electronic devices offer functions for authenticating users based on their biometric information to enhance their security. Biometric information may include, for example, a user's biological characteristics, such as fingerprints, irises, voice, face, or blood vessels. Fingerprint recognition is utilized in various fields, such as unlocking electronic devices and providing remittance and payment services, and electronic devices are equipped with fingerprint sensors for this purpose. Furthermore, when electronic devices perform certain operations due to power supplied from a battery, a magnetic field is generated from the electronic device, and the need for security measures to protect electronic devices from hacking by this magnetic field is emerging.

[0003] As a technical means for achieving the above-described technical problem, one embodiment of the present disclosure may provide a method for an electronic device to generate a noise magnetic field for protecting fingerprint information, including the following operations: executing an application; activating a function for fingerprint authentication of a user based on a user input for the executed application; identifying a property of a noise magnetic field to be generated by the electronic device as the function is activated; generating a noise magnetic field from the electronic device based on the property of the noise magnetic field while the function is activated; and detecting a fingerprint of the user for the fingerprint authentication while the noise magnetic field is being generated. In addition, the method may include the following operations: authenticating the user based on the detected fingerprint of the user; and terminating the generation of the noise magnetic field as the fingerprint authentication is terminated.

[0004] In addition, one embodiment of the present disclosure may provide an electronic device that generates a noise magnetic field for protecting fingerprint information, including a fingerprint sensor; a memory that stores instructions; and one or more processors; wherein the instructions, when executed by the one or more processors, cause the electronic device to: execute an application; activate a function for fingerprint authentication of a user based on a user input for the executed application; identify a property of a noise magnetic field to be generated by the electronic device as the function is activated; generate a noise magnetic field from the electronic device based on the property of the noise magnetic field while the function is activated; and detect a fingerprint of the user for the fingerprint authentication through the fingerprint sensor while the noise magnetic field is being generated. In addition, the instructions, when executed by the one or more processors, may cause the electronic device to: authenticate the user based on the detected fingerprint of the user, and terminate generation of the noise magnetic field as the fingerprint authentication is terminated.

[0005] In addition, one embodiment of the present disclosure may provide a computer-readable recording medium having recorded thereon a program for executing the following actions: executing an application; activating a function for fingerprint authentication of a user based on a user input for the executed application; identifying an attribute related to a noise magnetic field to be generated by the electronic device as the function is activated; generating a noise magnetic field from the electronic device based on an attribute of the noise magnetic field while the function is activated; and detecting a fingerprint of the user for fingerprint authentication while the noise magnetic field is being generated. In addition, a computer-readable recording medium having recorded thereon a program for further executing the following actions: authenticating the user based on the detected user's fingerprint; and terminating the generation of the noise magnetic field as the authentication is terminated.

[0006] In addition, one embodiment of the present disclosure may provide a method for an electronic device to generate a noise magnetic field for protecting fingerprint information, including: activating a function for fingerprint authentication of a user in a general area; identifying a property of a noise magnetic field to be generated by the electronic device in a secure area as the function is activated; generating a noise magnetic field from the electronic device by controlling an MST antenna within the secure area based on the property of the noise magnetic field while the function is activated; and detecting a fingerprint of the user for the fingerprint authentication while the noise magnetic field is being generated.

[0007] One embodiment of the present disclosure includes a fingerprint sensor; a memory storing instructions; and one or more processors; wherein the instructions, when executed by the one or more processors, cause the electronic device to: activate a function for fingerprint authentication of a user in a general area; identify a property of a noise magnetic field to be generated by the electronic device in a secure area when the function is activated; generate a noise magnetic field from the electronic device by controlling an MST antenna within the secure area based on the property of the noise magnetic field while the function is activated; and detect a fingerprint of the user for the fingerprint authentication while the noise magnetic field is being generated.

[0008] One embodiment of the present disclosure may provide a computer-readable recording medium having recorded thereon a program for executing the following operations: activating a function for fingerprint authentication of a user in a general area; identifying a property of a noise magnetic field to be generated by the electronic device in a secure area when the function is activated; generating a noise magnetic field from the electronic device by controlling an MST antenna within the secure area based on the property of the noise magnetic field while the function is activated; and detecting a fingerprint of the user for the fingerprint authentication while the noise magnetic field is being generated.

[0009] FIG. 1 is a diagram illustrating an overview of an electronic device according to one embodiment that prevents fingerprint hacking due to a magnetic field generated from the electronic device during fingerprint authentication.

[0010] FIG. 2 is a flowchart of a method for generating a noise magnetic field to protect fingerprint information by an electronic device according to one embodiment.

[0011] FIG. 3 is a diagram showing an example of a noise magnetic field generated by an electronic device according to one embodiment.

[0012] FIG. 4 is a diagram illustrating an example of a magnetic field generated from an electronic device due to fingerprint authentication according to one embodiment, and a noise magnetic field generated by an electronic device for protecting fingerprint information.

[0013] FIG. 5 is a diagram illustrating an example of an electronic device controlling an MST antenna in a secure area to control the generation of a noise magnetic field according to one embodiment.

[0014] FIG. 6 is a flowchart of a method for controlling the generation of a noise magnetic field in a security area by an electronic device according to one embodiment.

[0015] FIG. 7 is a diagram illustrating an example of an electronic device controlling electronic components in a secure area to control the generation of a noise magnetic field according to one embodiment.

[0016] FIG. 8 is a flowchart of a method for controlling electronic components to generate a noise magnetic field in a security area according to one embodiment of the present invention.

[0017] FIG. 9 is a block diagram of an electronic device (901) within a network environment (900), according to various embodiments.

[0018] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0019] Below, embodiments of the present disclosure are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In addition, for the purpose of clearly explaining the present disclosure in the drawings, parts irrelevant to the description are omitted, and similar parts are designated with similar reference numerals throughout the specification.

[0020] The terms used in this disclosure are described as currently common terms, taking into account the functions mentioned herein. However, these terms may mean various other terms depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in this disclosure should not be interpreted solely based on their names, but rather based on the meanings of the terms and the overall content of this disclosure.

[0021] Additionally, while terms such as first, second, etc. may be used to describe various components, the components should not be limited by these terms. These terms are used to distinguish one component from another.

[0022] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the cases where the parts are "directly connected" but also the cases where the parts are "electrically connected" with other elements intervening. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather includes other components, unless otherwise stated.

[0023] The phrases “in one embodiment” and the like appearing in various places throughout this disclosure do not necessarily all refer to the same embodiment.

[0024] An embodiment of the present disclosure may be represented by functional block configurations and various processing steps. Some or all of these functional blocks may be implemented by various hardware and / or software configurations that perform specific functions. For example, the functional blocks of the present disclosure may be implemented by one or more microprocessors or by circuit configurations for a given function. Furthermore, for example, the functional blocks of the present disclosure may be implemented in various programming or scripting languages. The functional blocks may be implemented by algorithms that execute on one or more processors. Furthermore, the present disclosure may employ conventional techniques for electronic configuration, signal processing, and / or data processing. Terms such as "mechanism," "element," "means," and "configuration" may be used broadly and are not limited to mechanical and physical configurations.

[0025] Additionally, the connecting lines or connecting members between components depicted in the drawings are merely exemplary representations of functional connections and / or physical or circuit connections. In an actual device, connections between components may be represented by various functional connections, physical connections, or circuit connections that may be replaced or added.

[0026] The present disclosure will be described in detail with reference to the attached drawings below.

[0027] FIG. 1 is a diagram illustrating an overview of an electronic device according to one embodiment that prevents fingerprint hacking due to a magnetic field generated from the electronic device during fingerprint authentication.

[0028] Referring to FIG. 1, an electronic device (1000) according to one embodiment can authenticate a user by detecting the user's fingerprint. For example, when a user touches the electronic device (1000) with a finger, the electronic device (1000) can detect (e.g., scan) the fingerprint of the user's finger and authenticate the user based on the detected fingerprint. In this case, the electronic device (1000) can activate and operate an electronic component (e.g., a fingerprint sensor, etc.) within the electronic device (1000) to detect the user's fingerprint, and the operation of the electronic component within the electronic device (1000) can cause a magnetic field to be generated from the electronic device (1000).

[0029] According to one embodiment, a magnetic field generated from an electronic device (1000) due to the operation of an electronic component for detecting a fingerprint may be intercepted by an attacker's hacking device (e.g., a device such as a modified wireless charger). If the magnetic field generated from the electronic device (1000) due to the operation of the electronic component for detecting a fingerprint is intercepted, the attacker may obtain fingerprint information for restoring the user's fingerprint based on the magnetic field intercepted by the hacking device. For example, the attacker may estimate the fingerprint authentication time of the electronic device (1000) based on a change in the intensity of the intercepted magnetic field, and may obtain fingerprint information for restoring the user's fingerprint by analyzing the magnetic field corresponding to the estimated fingerprint authentication time. For example, the attacker may obtain fingerprint information for restoring the user's fingerprint using an artificial intelligence model based on feature values ​​related to the intensity of the intercepted magnetic field corresponding to the estimated fingerprint authentication time. Furthermore, for example, the attacker may restore the user's fingerprint by creating a fake fingerprint using 3D printing technology based on the acquired fingerprint information. Since a restored user's fingerprint (e.g., a fake fingerprint) can be created, the user's fingerprint can be hacked by an attacker. However, according to one embodiment, the electronic device (1000) can generate a noise magnetic field (10) from the electronic device (1000) while performing an operation of detecting and authenticating a fingerprint. According to one embodiment, since the electronic device (1000) generates a noise magnetic field (10), even if the magnetic field is stolen by an attacker, the noise magnetic field can be included in the stolen magnetic field. Accordingly, due to the noise magnetic field included in the stolen magnetic field, the attacker cannot remove only the noise magnetic field from the stolen magnetic field, and the attacker can prevent the user's fingerprint from being forged.

[0030] According to one embodiment, the electronic device (1000) may provide execution environments having multiple security levels. The electronic device (1000) may operate multiple execution environments having different security levels, and the multiple execution environments may be physically and / or logically separated from each other. For example, for physically separated execution environments, an application processor (AP) operating in a general environment and a secure processor operating in a secure environment may be provided. In addition, for example, logically separated execution environments may be provided for a single processor, and as an example, trust zone (e.g., ARM trust zone) technology may be provided.

[0031] According to one embodiment, execution environments with different security levels, physically and / or logically separated, may be divided into a normal world execution environment and a secure world execution environment. For example, the normal world execution environment may be an execution environment with a low security level, and the secure world execution environment may be an execution environment with a high security level. In addition, the electronic device (1000) may perform a function for controlling the generation of a noise magnetic field in the secure world of the electronic device (1000).

[0032] In one embodiment, for example, a trust zone may be a technology for blocking attacks that modify an operating system (OS) using, for example, a root kit, and the trust zone may be used as a means of providing a Trusted Execution Environment (TEE) for mobile and embedded devices. Through hardware-based access control, the trust zone can isolate services that require essential security from the Rich Execution Environment (REE) that hosts the general operating system (OS).

[0033] In one embodiment, for example, a trust zone may divide a processor core into a general area and a secure area. In this case, the general area of ​​the trust zone may be a Rich Execution Environment (REE) area where a client application (hereinafter referred to as a CA) and an operating system (OS) run. In addition, the secure area of ​​the trust zone is a Trusted Execution Environment (TEE) area isolated from the general area, and may execute a Trusted Application (hereinafter referred to as a TA). For example, the CA may run on a Rich Operating System (OS) in the general area, and the TA may run on a Secure Operating System (OS) in the secure area.

[0034] In one embodiment, for example, the addresses of the tables used to translate between virtual and physical addresses, such as through trust zone technology, may be different, allowing the general and secure zones to access different address spaces. Furthermore, a memory region accessible only to the secure zone may be designated.

[0035] In one embodiment, for example, a CA in a general area of ​​a trust zone can access resources within a secure area through a communication interface with a trust application (TA) that has a pair relationship with the CA.

[0036] According to one embodiment, the electronic device (1000) may be, but is not limited to, a smartphone, a tablet PC, a PC, a smart TV, a mobile phone, a personal digital assistant (PDA), a laptop, a media player, a microserver, a global positioning system (GPS) device, an e-book reader, a digital broadcasting terminal, a navigation device, a kiosk, an MP3 player, a digital camera, a home appliance, and other mobile or non-mobile computing devices. In addition, the electronic device (1000) may be a wearable device such as a watch, glasses, a hair band, or a ring, having communication and data processing functions. However, the electronic device (1000) is not limited thereto, and may include any type of device capable of controlling a device such as a sensor to obtain information for authenticating a user.

[0037] FIG. 2 is a flowchart of a method for generating a noise magnetic field to protect fingerprint information by an electronic device according to one embodiment.

[0038] In operation 210, the electronic device (1000) may execute an application. According to one embodiment, the electronic device (1000) may execute an application that requires user authentication for a given operation. For example, the electronic device (1000) may execute an application that performs authentication based on the user's biometric information for a given operation. For example, the electronic device (1000) may execute a payment application that performs user authentication based on fingerprint information. For example, the electronic device (1000) may execute an application that performs user authentication based on the user's facial image. However, the types of biometric information and applications for user authentication are not limited thereto.

[0039] In operation 220, the electronic device (1000) may activate a function for fingerprint authentication. According to one embodiment, the electronic device (1000) may activate the function for fingerprint authentication based on a user input for a running application. According to one embodiment, as the application executes an operation for user authentication based on the user input, the electronic device (1000) may activate the function for fingerprint authentication. For example, the electronic device (1000) may activate the fingerprint authentication function for a payment operation of a payment application when a user input for initiating a payment operation is received. For example, as the fingerprint authentication function of the electronic device (1000) is activated, the electronic device (1000) may display a GUI for detecting a user's fingerprint on the display of the electronic device (1000) and activate a fingerprint sensor within the electronic device (1000). In this case, for example, the fingerprint sensor may be included within the display.

[0040] In operation 230, the electronic device (1000) may identify an attribute related to a noise magnetic field. According to one embodiment, the electronic device (1000) may identify at least one attribute related to the intensity and / or generation time of the noise magnetic field. For example, the electronic device (1000) may determine at least one of the time of generation of the noise magnetic field, the time of change of the noise magnetic field, the change cycle of the noise magnetic field, the end time of generation of the noise magnetic field, or the intensity of the noise magnetic field. For example, the noise magnetic field may have different intensities for each cycle, and the intensity of the noise magnetic field may have a random value within a specified range. For example, the magnetic field control TA (530) of FIG. 5, which will be described later, may generate a random intensity value of the noise magnetic field within a specified range using a random generator. The random generator may be included in the magnetic field control TA (530), but is not limited thereto. Additionally, for example, the electronic device (1000) can identify the properties of the noise magnetic field based on at least one of the time when the fingerprint authentication function is activated, the time when the user's touch is received, the time when the user's touch is maintained, or the time when the detected user's fingerprint is authenticated.

[0041] An example of the properties of a noise magnetic field according to one embodiment will be described in more detail in FIGS. 3 and 4.

[0042] According to one embodiment, the operation of identifying the properties of a noise magnetic field may be performed in a secure area (e.g., a secure world) of the electronic device (1000). To protect fingerprint information, hacking of the properties of the noise magnetic field may be prevented by identifying and managing the properties of the noise magnetic field in the secure area.

[0043] In operation 240, the electronic device (1000) may generate a noise magnetic field while the function for fingerprint authentication is activated. According to one embodiment, the electronic device (1000) may control an MST (magnetic secure transmission) antenna within the electronic device (1000) to cause the MST antenna to generate a noise magnetic field while the function for fingerprint authentication is activated. According to one embodiment, the electronic device (1000) may control the MST antenna to generate a noise magnetic field based on the attribute identified in operation 230 while the function for fingerprint authentication is activated.

[0044] According to one embodiment, the electronic device (1000) may transmit a control command for generating a noise magnetic field to the MST driver controlling the MST antenna, thereby allowing the MST driver to control the MST antenna. In this case, the MST driver may perform operations in a secure area of ​​the electronic device (1000), and hacking of the properties of the noise magnetic field may be prevented by the MST driver within the secure area controlling the MST antenna.

[0045] In operation 250, the electronic device (1000) can detect a user's fingerprint while a noise magnetic field is generated. For example, the electronic device (1000) can detect a user's fingerprint from a user's finger touching a fingerprint sensor while a noise magnetic field is generated.

[0046] In operation 260, the electronic device (1000) can identify whether user authentication based on the detected fingerprint has ended. While the noise magnetic field is generated, the electronic device (1000) can perform user authentication based on the detected fingerprint. According to one embodiment, if the detected fingerprint is similar to a fingerprint registered in the electronic device (1000) by a threshold or more, the electronic device (1000) can succeed in user authentication. According to one embodiment, if the detected fingerprint is not similar to a fingerprint registered in the electronic device (1000) by a threshold or more, the electronic device (1000) can fail user authentication. If user authentication fails, the electronic device (1000) can re-perform the user authentication operation. Additionally, if the failure of user authentication is repeated a specified number of times or more, the electronic device (1000) can determine that user authentication has ended. According to one embodiment, if the success or failure of user authentication is determined, the electronic device (1000) can determine that user authentication based on the detected fingerprint has ended.

[0047] In operation 270, the electronic device (1000) may terminate the generation of the noise magnetic field. According to one embodiment, the electronic device (1000) may terminate the generation of the noise magnetic field as user authentication is terminated.

[0048] FIG. 3 is a diagram showing an example of a noise magnetic field generated by an electronic device according to one embodiment.

[0049] Referring to FIG. 3, a noise magnetic field according to one embodiment may be radiated with different properties depending on a defined change cycle (or change point in time). For example, from the time a fingerprint authentication function is initiated (30) to the time fingerprint authentication is terminated (32), multiple sequences of noise magnetic fields having different properties may be generated.

[0050] For example, the MST antenna can transmit a magnetic field containing specific information for each sequence, and the electronic device (1000) can sequentially emit a plurality of sequences of noise magnetic fields containing different random information through the MST antenna based on a defined sequence.

[0051] For example, the noise magnetic field of the first sequence may be a magnetic field having a random intensity within the first intensity range, the noise magnetic field of the second sequence may be a magnetic field having a random intensity within the second intensity range, and the noise magnetic field of the n-th sequence may be a magnetic field having a random intensity within the n-th intensity range.

[0052] According to one embodiment, the intensity range of the noise magnetic field may be determined based on detailed operations for fingerprint authentication and the timing of performing the detailed operations. For example, the intensity range of the noise magnetic field may be determined based on at least one of the time when the fingerprint authentication function is activated, the time when the user's touch is received, the time for which the user's touch is maintained, or the time for authenticating the detected user's fingerprint. For example, the intensity range of the noise magnetic field may be determined based on at least one of the intensity of the magnetic field generated from the electronic device (1000) when the fingerprint authentication function is activated and the user's touch is not received, the intensity of the magnetic field generated from the electronic device (1000) while the fingerprint authentication function is activated and the user's touch is received, or the intensity of the magnetic field generated from the electronic device (1000) while authenticating the user's fingerprint after the fingerprint authentication function is activated and the user's touch is removed. In addition, for example, at least two of the first intensity range, the second intensity range, or the n-th intensity range may be identical to each other, but is not limited thereto.

[0053] FIG. 4 is a diagram illustrating an example of a magnetic field generated from an electronic device due to fingerprint authentication according to one embodiment, and a noise magnetic field generated by an electronic device for protecting fingerprint information.

[0054] Identification number 4a of FIG. 4 shows an example of a magnetic field generated from an electronic device (1000) when the electronic device (1000) detects a user's fingerprint using an activated fingerprint sensor. In the graph of identification number 4a, the x-axis may be an axis representing time, and the y-axis may be an axis representing the strength of the magnetic field.

[0055] In addition, for example, identification number 40 may indicate a point in time when a function for user authentication in the electronic device (1000) is activated, identification number 42 may indicate a point in time when a user's finger comes into contact with the periphery of the fingerprint sensor of the electronic device (1000), identification number 43 may indicate a point in time when the finger is removed from the periphery of the fingerprint sensor of the electronic device (1000), and identification number 44 may indicate a point in time when a function for user authentication in the electronic device (1000) is terminated. For example, a time interval between identification numbers 42 and 43 may be a time interval during which the electronic device (1000) detects a user's fingerprint through a fingerprint sensor in order to authenticate the user's fingerprint.

[0056] Identification number 4b of FIG. 4 represents an example of a noise magnetic field generated by the electronic device (1000) to protect the user's fingerprint information. In the graph of identification number 4b, the x-axis may be an axis representing time, and the y-axis may be an axis representing the strength of the magnetic field.

[0057] For example, the electronic device (1000) can generate a noise magnetic field having a random value within a predetermined strength range from the time point (40) when a function for user authentication in the electronic device (1000) is activated to the time point (42) when a user's finger comes into contact with the area around the fingerprint sensor of the electronic device (1000).

[0058] For example, the electronic device (1000) may generate a noise magnetic field having a random value within a predetermined intensity range from a point in time (42) when the user's finger is in contact with the fingerprint sensor of the electronic device (1000) to a point in time (43) when the finger is released from the contact. According to one embodiment, the intensity range between the point in time (42) and the point in time (43) may be determined by considering the intensity of the magnetic field between the point in time (42) and the point in time (43) in the identification number 4a. For example, the intensity range of the noise magnetic field between the point in time (42) and the point in time (43) may be determined such that the intensity of the magnetic field obtained by combining the magnetic field and the noise magnetic field between the point in time (42) and the point in time (43) is similar to the intensity of the magnetic field obtained by combining the magnetic field and the noise magnetic field between the point in time (40) and the point in time (42).

[0059] For example, the electronic device (1000) can generate a noise magnetic field having a random value within a predetermined intensity range from the time point (43) when the finger contact with the electronic device (1000) is removed to the time point (44) when the function for user authentication is terminated. For example, the intensity range of the noise magnetic field between time points (43) and (44) can be determined such that the intensity of the magnetic field obtained by combining the magnetic field and the noise magnetic field between time points (43) and (44) is similar to the intensity of the magnetic field obtained by combining the magnetic field and the noise magnetic field between time points (42) and (43).

[0060] Identification number 4c of FIG. 4 represents an example of combining a magnetic field generated from an electronic device (1000) in identification number 4a and a noise magnetic field generated by the electronic device (1000) in identification number 4b. In the graph of identification number 4c, the x-axis may be an axis representing time, and the y-axis may be an axis representing the intensity of the magnetic field.

[0061] According to one embodiment, the strength of the magnetic field obtained by combining the magnetic field and the noise magnetic field between time points (40) and (42), the strength of the magnetic field obtained by combining the magnetic field and the noise magnetic field between time points (42) and (43), and the strength of the magnetic field obtained by combining the magnetic field and the noise magnetic field between time points (43) and (44) may be similar to each other. Accordingly, the magnetic field detected from the outside of the electronic device (1000) during user fingerprint authentication may have a similar strength regardless of the times at which detailed operations for user fingerprint authentication are performed. Accordingly, an attacker cannot predict the time at which the user's fingerprint is authenticated based on the strength of the magnetic field detected from the electronic device (1000). In addition, since the attacker cannot know the strength of the noise magnetic field included in the detected magnetic field, the attacker cannot remove the noise magnetic field from the detected magnetic field. Accordingly, the attacker cannot obtain the user's fingerprint information from the detected magnetic field, and cannot restore the user's fingerprint.

[0062] FIG. 5 is a diagram illustrating an example of an electronic device controlling an MST antenna in a secure area to control the generation of a noise magnetic field according to one embodiment.

[0063] Referring to FIG. 5, an electronic device (1000) according to one embodiment can generate a noise magnetic field by controlling the operation of an MST antenna (560) in a secure area (e.g., secure world).

[0064] Based on a user input to a payment application UI (510) according to one embodiment, the electronic device (1000) may perform operations for payment. For example, general operations for payment may be performed by a payment CA (client application: 524) in a general area (e.g., normal world), and secure operations for payment may be performed by a payment TA (trusted application: 526) in a secure area (e.g., secure world). For example, general operations for payment may be operations that do not require security, and secure operations for payment may be operations that require security.

[0065] In one embodiment, the payment CA (524) may identify that fingerprint authentication is required for a payment based on user input to the payment application UI (510). In this case, the payment CA (524) may request the fingerprint authentication application to perform actions for fingerprint authentication.

[0066] According to one embodiment, based on a user input to a fingerprint authentication UI (510) of a fingerprint authentication application, the electronic device (1000) may perform a fingerprint authentication operation of the user. For example, general operations for fingerprint authentication may be performed by a fingerprint client application (CA: 514) running in a general area (e.g., normal world), and security operations for fingerprint authentication may be performed by a fingerprint trusted application (TA: 516) running in a secure area (e.g., secure world). For example, general operations for fingerprint authentication may be operations that do not require security, and security operations for fingerprint authentication may be operations that require security.

[0067] According to one embodiment, the fingerprint TA (516) can control the fingerprint sensor (550) in the general area through the fingerprint driver (540) in the secure area. The fingerprint sensor (550) can detect the user's fingerprint information under the control of the fingerprint driver (540), and the fingerprint TA (516) can authenticate the user based on the user's fingerprint information detected by the fingerprint sensor (550). In addition, the fingerprint TA (516) can provide information regarding the operating times of detailed operations for fingerprint authentication to the magnetic field control TA (530), which will be described later. For example, the operating times of detailed operations for fingerprint authentication may include, but are not limited to, the time when the fingerprint authentication function is started, the time during which the fingerprint is detected through the fingerprint sensor, and the time when the fingerprint authentication function is ended.

[0068] According to one embodiment, the magnetic field control TA (530) can determine the properties of the noise magnetic field and control the MST antenna (560) through the MST driver (542) connected to the payment TA (526) within the secure area. For example, the magnetic field control TA (530) can determine the strength and radiation period of the noise magnetic field based on the operating timing of detailed operations for fingerprint authentication. For example, the magnetic field control TA (530) can determine the strength and radiation period of the noise magnetic field based on at least one of the time when the fingerprint authentication function is activated, the time when the user's touch is received, the time for which the user's touch is maintained, or the time for authenticating the detected user's fingerprint. In addition, for example, the magnetic field control TA (530) can determine a random strength value of the noise magnetic field using a random generator within the secure area. The random generator may be included in the magnetic field control TA (530), but is not limited thereto. In addition, for example, the magnetic field control TA (530) can determine a random intensity value of the noise magnetic field within a different range according to the radiation period, but is not limited thereto. In addition, for example, the magnetic field control TA (530) can provide control information regarding the properties of the noise magnetic field to the MST driver (542) within the security area, and the MST driver (542) can control the MST antenna (560) to generate the noise magnetic field according to the properties of the noise magnetic field.

[0069] Accordingly, the operation of determining the properties of the noise magnetic field and controlling the MST driver (542) can be performed in the security area, and the properties of the noise magnetic field generated during fingerprint authentication are not provided outside the security area, and the properties of the noise magnetic field can be prevented from being hacked by an attacker.

[0070] According to one embodiment, when the user's fingerprint authentication is successful, the magnetic field control TA (530) can cause the MST antenna (560) to stop generating a noise magnetic field through the MST driver (542), and the payment TA (526) can cause the MST antenna (560) to emit a magnetic field containing payment information through the MST driver (542).

[0071] FIG. 6 is a flowchart of a method for controlling the generation of a noise magnetic field in a security area by an electronic device according to one embodiment.

[0072] In operation 610, the electronic device (1000) can identify whether a function for fingerprint authentication has been initiated. According to one embodiment, the electronic device (1000) can initiate a fingerprint authentication operation based on a user input to an application. The electronic device (1000) can identify that the function of the electronic device for fingerprint authentication has been initiated as the fingerprint authentication operation is initiated.

[0073] In operation 620, the fingerprint TA of the electronic device (1000) may transmit a start signal to the magnetic field control TA. According to one embodiment, the fingerprint TA of the security area of ​​the electronic device (1000) may transmit a signal indicating that a fingerprint authentication operation has started to the magnetic field control TA to notify the magnetic field control TA of the security area that the fingerprint authentication function has been initiated.

[0074] In operation 630, the magnetic field control TA of the electronic device (1000) may generate a control signal for generating a noise magnetic field. According to one embodiment, the magnetic field control TA of the security area may determine a property of the noise magnetic field and generate a control signal for causing the MST antenna to generate the noise magnetic field according to the determined property of the noise magnetic field. The control signal may be, for example, a signal for controlling the operation of the MST driver, but is not limited thereto. The control signal may be, for example, a signal including information regarding the property of the determined noise magnetic field, which is used by the MST driver to control the MST antenna.

[0075] In operation 640, the magnetic field control TA of the electronic device (1000) may provide a generated control signal to the MST driver. According to one embodiment, the magnetic field control TA may transmit a control signal to the MST driver to cause the MST antenna to generate a noise magnetic field according to the properties of the determined noise magnetic field.

[0076] In operation 650, the MST driver of the electronic device (1000) may control the MST antenna to emit a noise magnetic field. In one embodiment, the MST driver within the secure area may control the MST antenna to emit a noise magnetic field according to the determined properties of the noise magnetic field.

[0077] In operation 660, the electronic device (1000) may determine whether the fingerprint authentication function has been terminated. According to one embodiment, the fingerprint TA of the secure area may determine whether the user's fingerprint authentication succeeds or fails based on the user's fingerprint information. As the success or failure of the user's fingerprint authentication is confirmed, the electronic device (1000) may determine that the fingerprint authentication function has been terminated. The fingerprint TA may provide information indicating that the fingerprint authentication function has been terminated to the magnetic field control TA.

[0078] In operation 670, the electronic device (1000) can control the MST antenna to stop emitting the noise magnetic field. According to one embodiment, as the fingerprint authentication function is terminated, the magnetic field control TA can cause the MST antenna to stop emitting the noise magnetic field through the MST driver.

[0079] FIG. 7 is a diagram illustrating an example of an electronic device controlling electronic components in a secure area to control the generation of a noise magnetic field according to one embodiment.

[0080] Referring to FIG. 7, an electronic device (1000) according to one embodiment can generate a noise magnetic field by controlling the operation of an electronic component (718) other than an MST antenna (560).

[0081] Based on a user input to a general application UI (710) according to one embodiment, the electronic device (1000) can perform the function of a general application based on the operation of an electronic component (718). For example, the general application may be an application other than a payment application, and may be an application that controls the operation of the electronic component (718) in the general area. In addition, the electronic component (718) is a component that causes changes in voltage and current within the electronic device (1000), and may include, but is not limited to, electronic components for wireless charging, speakers that generate white noise, and vibration sensors that generate vibration. Specified operations of the general application may be performed by a general application CA (client application: 712) running in a general area (e.g., normal world) controlling a second driver (714) of the general area. The general application CA (712) can control the electronic component (718) through the second driver (714) of the normal area.

[0082] According to one embodiment, the magnetic field control TA (530) of the secure area can generate a noise magnetic field from the electronic device (1000) by controlling the operation of the electronic component (718) through the first driver (716) of the secure area. According to one embodiment, the electronic device (1000) can perform a fingerprint authentication operation of the user based on a user input to the fingerprint authentication UI (510) of the fingerprint authentication application. For example, general operations for fingerprint authentication can be performed by a fingerprint CA (client application: 514) running in a general area (e.g., normal world), and security operations for fingerprint authentication can be performed by a fingerprint TA (trusted application: 516) of a secure area (e.g., secure world). For example, general operations for fingerprint authentication can be operations that do not require security, and security operations for fingerprint authentication can be operations that require security.

[0083] According to one embodiment, the fingerprint TA (516) can control the fingerprint sensor (550) in the general area through the fingerprint driver (540) in the secure area. The fingerprint sensor (550) can detect the user's fingerprint information under the control of the fingerprint driver (540), and the fingerprint TA (516) can authenticate the user based on the user's fingerprint information detected by the fingerprint sensor (550). In addition, the fingerprint TA (516) can provide information regarding the operating times of detailed operations for fingerprint authentication to the magnetic field control TA (530), which will be described later. For example, the operating times of detailed operations for fingerprint authentication may include, but are not limited to, the time when the fingerprint authentication function is started, the time during which the fingerprint is detected through the fingerprint sensor, and the time when the fingerprint authentication function is ended.

[0084] According to one embodiment, the magnetic field control TA (530) can determine the properties of the noise magnetic field and control the electronic component (718) through the first driver (716) in the secure area. The first driver (716) is a driver for controlling the electronic component (718) in the secure area and can be a separate driver from the second driver (714) in the general area. According to one embodiment, for example, the magnetic field control TA (530) can determine the strength and radiation period of the noise magnetic field based on the operation timing of detailed operations for fingerprint authentication. For example, the magnetic field control TA (530) can provide control information based on the properties of the noise magnetic field to the first driver (716) in the secure area, and the first driver (716) can control the operation of the electronic component (718) according to the control information based on the properties of the noise magnetic field, and a noise magnetic field can be generated from the electronic device (1000).

[0085] Accordingly, the operation of determining the properties of the noise magnetic field and controlling the first driver (716) can be performed in a secure area, and the properties of the noise magnetic field generated during fingerprint authentication can be prevented from being hacked by an attacker.

[0086] FIG. 8 is a flowchart of a method for controlling electronic components to generate a noise magnetic field in a security area according to one embodiment of the present invention.

[0087] In operation 810, the electronic device (1000) can identify whether a function for fingerprint authentication has been initiated. According to one embodiment, the electronic device (1000) can initiate a fingerprint authentication operation based on a user input to an application. The electronic device (1000) can identify that the function of the electronic device for fingerprint authentication has been initiated as the fingerprint authentication operation is initiated.

[0088] In operation 820, the fingerprint TA of the electronic device (1000) may transmit a start signal to the magnetic field control TA. According to one embodiment, the fingerprint TA of the security area of ​​the electronic device (1000) may transmit a signal indicating that a fingerprint authentication operation has started to the magnetic field control TA to notify the magnetic field control TA of the security area that the fingerprint authentication function has been initiated.

[0089] In operation 830, the magnetic field control TA of the electronic device (1000) may generate a control signal for generating a noise magnetic field. According to one embodiment, the magnetic field control TA of the security region may determine a property of the noise magnetic field and generate a control signal for controlling an electronic component so that a noise magnetic field is generated according to the property of the noise magnetic field determined from the electronic device (1000). The control signal may be, for example, a signal for controlling the operation of a first driver of the security region connected to the electronic component, but is not limited thereto. The control signal may be, for example, a signal including information regarding power to be applied to the electronic component according to the property of the noise magnetic field determined as information used by the first driver of the security region connected to the electronic component to control the electronic component.

[0090] In operation 840, the magnetic field control TA of the electronic device (1000) may provide a generated control signal to the first driver. According to one embodiment, the magnetic field control TA may transmit a control signal for controlling an electronic component to the first driver of the security area so that a noise magnetic field is generated according to the properties of the noise magnetic field determined from the electronic device (1000).

[0091] In operation 850, a first driver of the electronic device (1000) can control the electronic component to activate the operation of the electronic component so that a noise magnetic field is generated from the electronic device (1000). The first driver of the security region can control the operation of the electronic component so that a noise magnetic field is generated according to the properties of the noise magnetic field determined from the electronic device (1000). The first driver of the security region can, for example, cause a predetermined strength of power corresponding to the properties of the noise magnetic field to be applied to the electronic component.

[0092] In operation 860, the electronic device (1000) may determine whether the fingerprint authentication function has been terminated. According to one embodiment, the fingerprint TA of the secure area may determine whether the user's fingerprint authentication succeeds or fails based on the user's fingerprint information. As the success or failure of the user's fingerprint authentication is confirmed, the electronic device (1000) may determine that the fingerprint authentication function has been terminated. The fingerprint TA may provide information indicating that the fingerprint authentication function has been terminated to the magnetic field control TA.

[0093] In operation 870, the first driver may control the electronic component to disable its operation. In one embodiment, as the fingerprint authentication function is terminated, the magnetic field control TA may terminate the operation of the electronic component via the first driver in the secure area.

[0094] According to one embodiment, a method for an electronic device to generate a noise magnetic field for protecting fingerprint information may be provided, including: executing an application; activating a function for fingerprint authentication of a user based on a user input for the executed application; identifying a property of a noise magnetic field to be generated by the electronic device as the function is activated; generating a noise magnetic field from the electronic device based on the property of the noise magnetic field while the function is activated; detecting a fingerprint of the user for the fingerprint authentication while the noise magnetic field is being generated; authenticating the user based on the detected fingerprint of the user; and terminating generation of the noise magnetic field as the fingerprint authentication is terminated.

[0095] Additionally, the operation of generating the noise magnetic field may generate the noise magnetic field through an MST (magnetic secure transmission) antenna within the electronic device.

[0096] Additionally, the action of activating the function for the fingerprint authentication activates the function in a general area of ​​the electronic device, and the action of determining the properties of the noise magnetic field can identify the properties of the noise magnetic field in a secure area of ​​the electronic device.

[0097] Additionally, the operation of generating the magnetic field may include an operation of controlling the operation of the MST antenna in the security area to generate the noise magnetic field according to the properties of the noise magnetic field.

[0098] In addition, a driver controlling the operation of the MST antenna is executed within the security area, and an operation controlling the operation of the MST antenna can control the driver within the security area.

[0099] Additionally, the properties of the noise magnetic field may include properties related to the intensity and occurrence time of the noise magnetic field.

[0100] Additionally, the properties of the noise magnetic field may be set differently for multiple time intervals included from the time the function is activated to the time the fingerprint authentication is terminated.

[0101] Additionally, the plurality of time intervals may be determined based on at least one of the activation time of the function, the display time of the GUI for fingerprint authentication, the detection time of the fingerprint, or the authentication time of the detected fingerprint.

[0102] Additionally, the operation of generating the noise magnetic field can generate the noise magnetic field by controlling the operation of other electronic components within the electronic device.

[0103] In addition, the operation of generating the noise magnetic field generates the magnetic field by controlling the first driver among the first driver and the second driver for controlling the operation of the other electronic component, and the first driver may be executed in the secure area of ​​the electronic device, and the second driver may be executed in the general area of ​​the electronic device.

[0104] FIG. 9 is a block diagram of an electronic device (901) within a network environment (900) according to various embodiments. Referring to FIG. 9, in the network environment (900), the electronic device (901) may communicate with the electronic device (902) via a first network (998) (e.g., a short-range wireless communication network), or may communicate with the electronic device (904) or a server (908) via a second network (999) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (901) may communicate with the electronic device (904) via the server (908). According to one embodiment, the electronic device (901) may include a processor (920), a memory (930), an input module (950), an audio output module (955), a display module (960), an audio module (970), a sensor module (976), an interface (977), a connection terminal (978), a haptic module (979), a camera module (980), a power management module (988), a battery (989), a communication module (990), a subscriber identification module (996), or an antenna module (997). In some embodiments, the electronic device (901) may omit at least one of these components (e.g., the connection terminal (978)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (976), the camera module (980), or the antenna module (997)) may be integrated into one component (e.g., the display module (960)).

[0105] The processor (920) may, for example, execute software (e.g., a program (940)) to control at least one other component (e.g., a hardware or software component) of the electronic device (901) connected to the processor (920) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (920) may store commands or data received from other components (e.g., a sensor module (976) or a communication module (990)) in a volatile memory (932), process the commands or data stored in the volatile memory (932), and store result data in a non-volatile memory (934). According to one embodiment, the processor (920) may include a main processor (921) (e.g., a central processing unit or an application processor) or an auxiliary processor (923) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (921). For example, when the electronic device (901) includes the main processor (921) and the auxiliary processor (923), the auxiliary processor (923) may be configured to use less power than the main processor (921) or to be specialized for a given function. The auxiliary processor (923) may be implemented separately from the main processor (921) or as a part thereof.

[0106] The auxiliary processor (923) may control at least a portion of functions or states associated with at least one component (e.g., a display module (960), a sensor module (976), or a communication module (990)) of the electronic device (901), for example, on behalf of the main processor (921) while the main processor (921) is in an inactive (e.g., sleep) state, or together with the main processor (921) while the main processor (921) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (923) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (980) or a communication module (990)). In one embodiment, the auxiliary processor (923) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (901) itself where the artificial intelligence is performed, or can be performed through a separate server (e.g., server (908)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0107] The memory (930) can store various data used by at least one component (e.g., the processor (920) or the sensor module (976)) of the electronic device (901). The data can include, for example, software (e.g., the program (940)) and input data or output data for commands related thereto. The memory (930) can include a volatile memory (932) or a non-volatile memory (934).

[0108] The program (940) may be stored as software in the memory (930) and may include, for example, an operating system (942), middleware (944), or an application (946).

[0109] The input module (950) can receive commands or data to be used in a component of the electronic device (901) (e.g., a processor (920)) from an external source (e.g., a user) of the electronic device (901). The input module (950) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0110] The audio output module (955) can output audio signals to the outside of the electronic device (901). The audio output module (955) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0111] The display module (960) can visually provide information to an external party (e.g., a user) of the electronic device (901). The display module (960) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (960) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0112] The audio module (970) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (970) can acquire sound through the input module (950), output sound through the sound output module (955), or an external electronic device (e.g., electronic device (902)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (901).

[0113] The sensor module (976) can detect the operating status (e.g., power or temperature) of the electronic device (901) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (976) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0114] The interface (977) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (901) with an external electronic device (e.g., the electronic device (902)). In one embodiment, the interface (977) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0115] The connection terminal (978) may include a connector through which the electronic device (901) may be physically connected to an external electronic device (e.g., the electronic device (902)). In one embodiment, the connection terminal (978) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0116] The haptic module (979) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (979) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0117] The camera module (980) can capture still images and videos. According to one embodiment, the camera module (980) may include one or more lenses, image sensors, image signal processors, or flashes.

[0118] The power management module (988) can manage the power supplied to the electronic device (901). According to one embodiment, the power management module (988) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0119] A battery (989) may power at least one component of the electronic device (901). In one embodiment, the battery (989) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0120] The communication module (990) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (901) and an external electronic device (e.g., electronic device (902), electronic device (904), or server (908)), and the performance of communication through the established communication channel. The communication module (990) may operate independently from the processor (920) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (990) may include a wireless communication module (992) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (994) (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with an external electronic device (904) via a first network (998) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (999) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (992) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (996) to verify or authenticate the electronic device (901) within a communication network such as the first network (998) or the second network (999).

[0121] The wireless communication module (992) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency communications (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (992) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (992) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (992) may support various requirements specified in the electronic device (901), an external electronic device (e.g., the electronic device (904)), or a network system (e.g., the second network (999)). According to one embodiment, the wireless communication module (992) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0122] The antenna module (997) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (997) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (997) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (998) or the second network (999), may be selected from the plurality of antennas, for example, by the communication module (990). A signal or power may be transmitted or received between the communication module (990) and the external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (997).

[0123] According to various embodiments, the antenna module (997) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0124] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0125] According to one embodiment, commands or data may be transmitted or received between the electronic device (901) and an external electronic device (904) via a server (908) connected to a second network (999). Each of the external electronic devices (902 or 904) may be the same or a different type of device as the electronic device (901). According to one embodiment, all or part of the operations executed in the electronic device (901) may be executed in one or more of the external electronic devices (902, 904, or 908). For example, when the electronic device (901) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (901) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (901). The electronic device (901) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (901) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (904) may include an Internet of Things (IoT) device. The server (908) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (904) or the server (908) may be included in the second network (999).The electronic device (901) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0126] According to one embodiment, the electronic device (901) of FIG. 9 may correspond to the electronic device (1000) of FIGS. 1 to 8. In addition, the electronic device (901) of FIG. 9 may perform the operations of the electronic device (1000) disclosed in FIGS. 1 to 8.

[0127] In one embodiment, the processor (920) may execute an application. In one embodiment, the processor (920) may execute an application that requires user authentication for a given operation. For example, the processor (920) may execute an application that performs authentication based on the user's biometric information for a given operation. For example, the processor (920) may execute a payment application that performs user authentication based on fingerprint information. For example, the processor (920) may execute an application that performs user authentication based on the user's facial image. However, the types of biometric information and applications for user authentication are not limited thereto.

[0128] In one embodiment, the processor (920) may activate a function for fingerprint authentication. In one embodiment, the processor (920) may activate the function for fingerprint authentication based on a user input for a running application. In one embodiment, as the application performs an operation for user authentication based on the user input, the processor (920) may activate the function for fingerprint authentication. For example, when a user input for initiating a payment operation is received, the processor (920) may activate the fingerprint authentication function for a payment operation of a payment application. For example, when the fingerprint authentication function of the electronic device (901) is activated, the processor (920) may display a GUI for detecting a user's fingerprint on the display of the electronic device (901) and activate a fingerprint sensor within the electronic device (901). In this case, for example, the fingerprint sensor may be included within the display.

[0129] According to one embodiment, the processor (920) may identify an attribute related to a noise magnetic field. According to one embodiment, the processor (920) may identify at least one attribute related to the intensity and / or generation time of the noise magnetic field. For example, the processor (920) may determine at least one of the time point of generation of the noise magnetic field, the time point of change of the noise magnetic field, the change cycle of the noise magnetic field, the end time of generation of the noise magnetic field, or the intensity of the noise magnetic field. For example, the noise magnetic field may have different intensities for each cycle, and the intensity of the noise magnetic field may have a random value within a specified range. For example, the noise magnetic field may identify an attribute of the noise magnetic field based on at least one of the time point of activation of the fingerprint authentication function, the time point of receiving the user's touch, the time point of maintaining the user's touch, or the time point of authenticating the detected user's fingerprint.

[0130] According to one embodiment, the operation of identifying the properties of a noise magnetic field may be performed in a secure area (e.g., a secure world) of the electronic device (901). To protect fingerprint information, hacking of the properties of the noise magnetic field can be prevented by identifying and managing the properties of the noise magnetic field in the secure area.

[0131] According to one embodiment, the processor (920) may generate a noise magnetic field while the function for fingerprint authentication is activated. According to one embodiment, the processor (920) may control the MST (magnetic secure transmission) antenna within the electronic device (901) to cause the MST antenna to generate a noise magnetic field while the function for fingerprint authentication is activated. According to one embodiment, the processor (920) may control the MST antenna to generate a noise magnetic field while the function for fingerprint authentication is activated.

[0132] According to one embodiment, the processor (920) may provide a control command for generating a noise magnetic field to the MST driver controlling the MST antenna, thereby allowing the MST driver to control the MST antenna. In this case, the MST driver may perform operations in a secure area of ​​the electronic device (901), and hacking of the properties of the noise magnetic field may be prevented by the MST driver within the secure area controlling the MST antenna.

[0133] In one embodiment, the processor (920) may detect a user's fingerprint while a noisy magnetic field is generated. For example, the processor (920) may detect a user's fingerprint from a user's finger touching a fingerprint sensor while a noisy magnetic field is generated.

[0134] According to one embodiment, the processor (920) can identify whether user authentication based on the detected fingerprint has ended. While the noise magnetic field is generated, the processor (920) can perform user authentication based on the detected fingerprint. According to one embodiment, if the detected fingerprint is similar to a fingerprint registered in the electronic device (901) by a threshold or more, the processor (920) can succeed in user authentication. According to one embodiment, if the detected fingerprint is not similar to a fingerprint registered in the electronic device (901) by a threshold or more, the processor (920) can fail the user authentication. If the user authentication fails, the processor (920) can re-perform the user authentication operation. Additionally, if the user authentication failure is repeated a specified number of times or more, the processor (920) can determine that the user authentication has ended. According to one embodiment, if the success or failure of the user authentication is determined, the processor (920) can determine that the user authentication based on the detected fingerprint has ended.

[0135] According to one embodiment, the processor (920) may terminate the generation of the noise magnetic field. According to one embodiment, the processor (920) may terminate the generation of the noise magnetic field when user authentication is terminated.

[0136] According to one embodiment, an electronic device may be provided, comprising: a fingerprint sensor; a memory storing instructions; and one or more processors; wherein the instructions, when executed by the one or more processors, cause the electronic device to: execute an application; activate a function for fingerprint authentication of a user based on a user input for the executed application; identify a property of a noise magnetic field to be generated by the electronic device as the function is activated; generate a noise magnetic field from the electronic device based on the property of the noise magnetic field while the function is activated; detect a fingerprint of the user for the fingerprint authentication through the fingerprint sensor while the noise magnetic field is being generated; authenticate the user based on the detected fingerprint of the user; and terminate generation of the noise magnetic field as the fingerprint authentication is terminated.

[0137] Additionally, the instructions, when executed by the one or more processors, may cause the electronic device to: generate the noise magnetic field via an MST antenna within the electronic device.

[0138] Additionally, the instructions, when executed by the one or more processors, may cause the electronic device to: activate the function in a general area of ​​the electronic device; and determine a property of the noise magnetic field in a secure area of ​​the electronic device.

[0139] Additionally, the instructions, when executed by the one or more processors, may cause the electronic device to: control the operation of the MST antenna in the secure area to generate the noise magnetic field according to a property of the noise magnetic field.

[0140] Additionally, a driver controlling operation of the MST antenna is executed within the secure area, and the instructions, when executed by the one or more processors, can cause the electronic device to: control the driver within the secure area.

[0141] Additionally, the properties of the noise magnetic field may include properties related to the intensity and occurrence time of the noise magnetic field.

[0142] Additionally, the properties of the noise magnetic field may be set differently for multiple time intervals included from the time the function is activated to the time the fingerprint authentication is terminated.

[0143] Additionally, the plurality of time intervals may be determined based on at least one of the activation time of the function, the display time of the GUI for fingerprint authentication, the detection time of the fingerprint, or the authentication time of the detected fingerprint.

[0144] Additionally, the instructions, when executed by the one or more processors, may cause the electronic device to: generate the noise magnetic field by controlling the operation of other electronic components within the electronic device.

[0145] According to one embodiment, a computer-readable recording medium having recorded thereon a program for executing the following actions: executing an application; activating a function for fingerprint authentication of a user based on a user input for the executed application; identifying an attribute related to a noise magnetic field to be generated by the electronic device as the function is activated; generating a noise magnetic field from the electronic device based on an attribute of the noise magnetic field while the function is activated; detecting a fingerprint of the user for the fingerprint authentication while the noise magnetic field is being generated; authenticating the user based on the detected fingerprint of the user; and terminating the generation of the noise magnetic field as the authentication is terminated.

[0146] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0147] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0148] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0149] Various embodiments of the present document may be implemented as software (e.g., a program (940)) including one or more instructions stored in a storage medium (e.g., an internal memory (936) or an external memory (938)) readable by a machine (e.g., an electronic device (901)). For example, a processor (e.g., a processor (920)) of the machine (e.g., an electronic device (901)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0150] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0151] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. A method for generating a noise magnetic field for protecting fingerprint information by an electronic device, The action of running an application; An action to activate a function for fingerprint authentication for a user based on user input for the above-described executed application; An operation for identifying the properties of a noise magnetic field to be generated by the electronic device upon activation of the above function; While the above function is activated, an operation of generating a noise magnetic field from the electronic device based on the properties of the noise magnetic field; An operation of detecting the user's fingerprint for fingerprint authentication while the above noise magnetic field is generated; An operation of authenticating the user based on the detected user's fingerprint; and An action of terminating the generation of the noise magnetic field upon termination of the above fingerprint authentication; How to include.

2. In paragraph 1, A method in which the operation of generating the above-mentioned noise magnetic field generates the above-mentioned noise magnetic field through an MST (magnetic secure transmission) antenna within the electronic device.

3. In paragraph 1, The action of activating the function for the fingerprint authentication activates the function in the general area of ​​the electronic device, A method wherein the operation of determining the properties of the noise magnetic field is to identify the properties of the noise magnetic field in a secure area of ​​the electronic device.

4. In paragraph 1, The action of generating the above magnetic field is, An operation of controlling the operation of the MST antenna in the security area to generate the noise magnetic field according to the properties of the noise magnetic field; A method comprising:

5. In paragraph 4, The driver controlling the operation of the above MST antenna is executed within the above security area, A method for controlling the operation of the above MST antenna, wherein the operation is to control the driver within the security area.

6. In paragraph 1, A method wherein the properties of the above noise magnetic field include properties related to the intensity and occurrence time of the noise magnetic field.

7. In paragraph 6, The properties of the above noise magnetic field are: A method in which the above function is set differently for each of multiple time intervals included within the time from when the above function is activated to when the above fingerprint authentication is terminated.

8. In paragraph 7, A method wherein the plurality of time intervals are determined based on at least one of the activation time of the function, the display time of the GUI for fingerprint authentication, the detection time of the fingerprint, or the authentication time of the detected fingerprint.

9. In paragraph 1, A method wherein the operation of generating the above noise magnetic field generates the above noise magnetic field by controlling the operation of other electronic components within the electronic device.

10. In paragraph 8, The action of generating the above noise magnetic field is: The magnetic field is generated by controlling the first driver among the first driver and the second driver for controlling the operation of the other electronic components, The first driver is executed in the secure area of ​​the electronic device, A method wherein the second driver is executed in the general area of ​​the electronic device.

11. In an electronic device that generates a noise magnetic field to protect fingerprint information, Fingerprint sensor; memory for storing commands; and One or more processors; Includes, The above instructions, when executed by the one or more processors, cause the electronic device to: Run the application, Based on the user input for the above-described application, activate the function for fingerprint authentication for the user, When the above function is activated, the properties of the noise magnetic field generated by the electronic device are identified, While the above function is activated, a noise magnetic field is generated from the electronic device based on the properties of the noise magnetic field, While the above noise magnetic field is generated, the user's fingerprint for fingerprint authentication is detected through the fingerprint sensor, Based on the detected user's fingerprint, the user is authenticated, An electronic device that causes the generation of the noise magnetic field to be terminated when the fingerprint authentication is terminated.

12. In paragraph 11, The above instructions, when executed by the one or more processors, cause the electronic device to: An electronic device that generates the noise magnetic field through an MST antenna within the electronic device.

13. In paragraph 11, The above instructions, when executed by the one or more processors, cause the electronic device to: Activate the above function in the general area of ​​the above electronic device, An electronic device, wherein the electronic device determines the properties of the noise magnetic field in a secure area of ​​the electronic device.

14. In paragraph 11, The above instructions, when executed by the one or more processors, cause the electronic device to: An electronic device that controls the operation of an MST antenna in the security area to generate the noise magnetic field according to the properties of the noise magnetic field.

15. In paragraph 14, The driver controlling the operation of the above MST antenna is executed within the above security area, The above instructions, when executed by the one or more processors, cause the electronic device to: An electronic device that controls the driver within the security zone.

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