Patent ID: 11917074
Assignee: SECUVE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. The electronic signature authentication system based on biometric information of claim 18, wherein verification of the validity of the at least one handwritten signature for document confirmation is performed by carrying out at least one of:
comparing image information of the at least one handwritten signature for document confirmation inserted into the electronic file to be verified, image information of the handwritten signature for the document confirmation extracted from the fourth encryption data combined to the electronic file to be verified, and image information of the handwritten signature for the final document confirmation extracted from the third encryption data combined to the electronic file to be verified with each other; and
comparing biometric characteristic information of the at least one handwritten signature for document confirmation inserted into the electronic file to be verified, biometric characteristic information of the handwritten signature for the document confirmation extracted from the fourth encryption data combined to the electronic file to be verified, and biometric characteristic information of the handwritten signature for the final document confirmation extracted from the third encryption data combined to the electronic file to be verified with each other.