Patent ID: 11868457
Assignee: NEOPAD INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A user authentication and signature method comprising:
acquiring biometrics information of a user from the user using a biometrics input/output device of a user information device and then storing the biometrics information in a memory device in a user biometrics processor of the user information device;
receiving an encryption key (password) registration request from the user;
displaying, on a touch display of the user information device, image data selected by the user or an image data processor from among pieces of image data stored in an image storage device of the user information device by uploading the selected image data in response to the encryption key registration request;
when the user designates a pixel at a specific position in the image data displayed on the touch display of the user information device by touching the pixel, acquiring coordinate values of the touch pixel and color values of the touch pixel as encryption key generation data for user registration; and
combining and encrypting the coordinate values of the touch pixel and the color values of the touch pixel or biometrics data of the user stored in an information device memory of the user and generating an encryption key for user registration with a combined and encrypted data,
wherein the acquiring of the coordinate values of the touch pixel and the color values of the touch pixel as the encryption key generation data for user registration when the user designates the pixel at the specific position in the image data displayed on the touch display of the user information device by touching the pixel comprises at least one of:
(a) reacquiring biometrics of the user from the user using the biometrics input/output device, confirming that users are identical to each other by comparing the reacquired biometrics of the user with the previously acquired and stored biometrics of the user, and then acquiring coordinate values of the touch pixel and color values of the touch pixel; and
(b) reacquiring biometrics of the user from the user, comparing the reacquired biometrics of the user with the biometrics of the user stored by a user biometrics verification processor, and simultaneously acquiring coordinate values of the touch pixel and color values of the touch pixel.