SYSTEM AND METHOD FOR AUTHENTICATION USING BARCODES

摘要

PURPOSE: An authentication system using a bar code and an authentication method are provided to enhance security for a signature key or an authentication certificate of a user. CONSTITUTION: A first user device(10) converts authentication related information provided by a service providing server(30) into a first bar code. A second user device(20) receives an input of the first bar code. The second user device generates authentication information or signature information about the authorization related information by using a signature key or an authentication certificate. The second user device provides the authentication information or the signature information to the service providing server.