ELECTRONIC SIGNATURE AUTHENTICATION SYSTEM ON THE BASIS OF BIOMETRIC INFORMATION AND ELECTRONIC SIGNATURE AUTHENTICATION METHOD THEREOF

The present disclosure provides an electronic signature authentication system and method capable of enhancing stability and reliability of an electronic signature by generating electronic signature information for authentication of an electronic document based on biometric information of a user. The electronic signature authentication system includes an authentication server, a user device, and an electronic document device, and is capable of providing identification of an electronic document provider among the electronic document provider, a signer of the electronic document, and a third party person using a signed electronic document, and providing verifications of integrity of the electronic document, prevention of repudiation of the signer, verification of whether the electronic document signed by the signer is identical to the electronic document provided by the electronic document provider, and a scheme for preventing falsification or tampering of the electronic document committed by the electronic document provider.