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

Claim 1:
2. The user authentication and signature device of claim 1, wherein the encryption key generation processor for user registration configured to generate the encryption key for user registration by encrypting the biometrics of the user, which is acquired from the user through the biometrics input/output device and stored in the information device memory of the user, or the encryption key generation data for user registration acquired by the encryption key generation data acquisition processor for user registration comprises one of:
(a) the encryption key generation processor for user registration configured to select 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, encrypt each piece of the selected values, and generate, 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 a combined data; and
(b) the encryption key generation processor for user registration configured to combine 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, encrypt the combined data, and then generate, 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.