Electronic device and method for authenticating a user based on biometric information

A method performed by an electronic device with a camera and communication circuitry, the method comprising,

• obtaining an image including a body portion of a user through the camera based on execution of a software application;
• obtaining feature values for the body portion identified based on the image;
• generating a first value hashed based on first feature values representing at least one part of the body portion from among the feature values;
• generating a second value hashed based on second feature values representing at least another part of the body portion from among the feature values;
• transmitting, through the communication circuitry, the first value and the second value to an external electronic device providing the software application;
• generating a first private key for generating the first value and a first public key for generating the first private key from the first feature values;
• storing the first public key with respect to the at least part of the body portion in the electronic device or a server associated with an account of the electronic device;
• generating a second private key for generating the second value and a second public key for generating the second private key from the second feature values;
• and
• storing the second public key with respect to the at least another part of the body portion in the electronic device or the server;
• wherein the first private key includes information on first coordinates converted from the first feature values based on the first public key to move to the first coordinates, and
• wherein the second private key includes information on second coordinates converted from the second feature values based on the second public key to move to the second coordinates.

One or more non-transitory computer-readable storage mediums storing computer-executable instructions that, when executed by at least one processor of an electronic device with a camera and communication circuitry, cause the electronic device to perform operations, the operations comprising:

• obtaining an image including a body portion of a user through the camera based on execution of a software application;
• obtaining feature values for the body portion identified based on the image;
• generating a first value hashed based on first feature values representing at least one part of the body portion from among the feature values;
• generating a second value hashed based on second feature values representing at least another part of the body portion from among the feature values;
• transmitting, through the communication circuitry, the first value and the second value to an external electronic device providing the software application;
• generating a first private key for generating the first value and a first public key for generating the first private key from the first feature values;
• storing the first public key with respect to the at least part of the body portion in the electronic device or a server associated with an account of the electronic device;
• generating a second private key for generating the second value and a second public key for generating the second private key from the second feature values;
• storing the second public key with respect to the at least another part of the body portion in the electronic device or the server;
• wherein the first private key includes information on first coordinates converted from the first feature values based on the first public key to move to the first coordinates, and
• wherein the second private key includes information on second coordinates converted from the second feature values based on the second public key to move to the second coordinates.