Abstract: The present invention relates to an electronic device for performing user authentication on a user by using user biometric information in response to a request made by a user authentication request device, wherein the user authentication request device transmits data obtained by sensing the body of a user adjacent thereto to the electronic device (a user authentication device) of the user to request user authentication, and receives authentication result data from the user authentication device.

Abstract: Provided are a method of deleting personal information of a user and an identity authentication system. A method, performed by a server, of deleting personal information may include receiving a first signal for deleting personal information of a user, the personal information being stored in an identity authentication system, deleting identification information of an identity authentication device corresponding to the user, and setting a flag value for deleting registered biometric data, and based on the flag value, transmitting, to the identity authentication device, a second signal for deleting the registered biometric data. A method, performed by an identity authentication device, of deleting personal information may include receiving, from a server, a second signal for deleting registered biometric data, and deleting the registered biometric data based on the second signal, wherein the second signal may include a flag value for deleting the registered biometric data.

Abstract: Provided is a method of requesting identity authentication for a user at a first device. The method includes sensing, by a sensor provided in the first device, one or more pieces of biometric information of the user; transmitting, by the first device, the sensed biometric information to a second device through a server; receiving, by the first device, verification information from the second device through the server, and the verification information indicates whether the sensed biometric information, being transmitted by the first device, is verified by the second device to match biometric information of the user that is pre-stored in the second device; and processing, by the first device, a predetermined function using the verification information, in response to the sensed biometric information of the user that is transmitted by the first device being verified to match the biometric information of the user that is pre-stored in the second device.

Abstract: This application relates to a financial payment method using biometric information, in which biometric information of an individual collected in a mobile device of an affiliated member is transmitted to a mobile device of the individual to allow the biometric information to be authenticated in the mobile device of the individual. After the authentication of the biometric information, a substitute key that corresponds to a card password preset by the individual is inputted, and a financial payment is requested based on the payment content.

Abstract: The present invention relates to an electronic device for performing user authentication on a user by using user biometric information in response to a request made by a user authentication request device. The user authentication request device transmits data obtained by sensing the body of a user adjacent thereto to the electronic device (a user authentication device) of the user to request user authentication, and receives authentication result data from the user authentication device.

Abstract: This application relates to a financial payment method using biometric information, in which biometric information of an individual collected in a mobile device of an affiliated member is transmitted to a mobile device of the individual to allow the biometric information to be authenticated in the mobile device of the individual. After the authentication of the biometric information, a substitute key that corresponds to a card password preset by the individual is inputted, and a financial payment is requested based on the payment content.

Abstract: This application relates to a financial payment method using biometric information. Biometric information of an individual collected in a mobile device of an affiliated member is transmitted to a mobile device of the individual to allow the biometric information to be authenticated in the mobile device of the individual. After the authentication of the biometric information, a substitute key that corresponds to a card password preset by the individual is inputted, and a financial payment is requested based on the payment content.

Abstract: The present invention relates to an electronic device for performing user authentication on a user by using user biometric information in response to a request made by a user authentication request device, wherein the user authentication request device transmits data obtained by sensing the body of a user adjacent thereto to the electronic device (a user authentication device) of the user to request user authentication, and receives authentication result data from the user authentication device.