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

Claim 7:
8. The user authentication and signature method of claim 7, wherein the combining and encrypting of the coordinate values of the touch pixel and the color values of the touch pixel or the stored biometrics data of the user and generating of the encryption key for user registration with the combined and encrypted data comprises one of:
(a) selecting at least one of the coordinate values of the touch pixel, the color values of the touch pixel, and the biometrics of the user acquired from the user using the biometrics input/output device and stored in the information device memory of the user, encrypting each piece of the selected values, and generating, as the encryption key for user registration, any one of data obtained by combining the encrypted pieces of data, data obtained by combining one or more of the encrypted pieces of data and a non-encrypted data, and data obtained by re-encrypting the combined data; and
(b) combining at least two of the coordinate values of the touch pixel, the color values of the touch pixel, and the biometrics of the user acquired from the user using the biometrics input/output device and stored in the information device memory of the user, encrypting the combined data, and generating, as the encryption key for user registration, any one of the encrypted data, data obtained by combining the combined and encrypted data and the non-encrypted data, and data obtained by re-encrypting the combined data.