@techreport{oai:ipsj.ixsq.nii.ac.jp:00197588, author = {Yuki, Fujita and Atsuo, Inomata and Hiroki, Kashiwazaki and Yuki, Fujita and Atsuo, Inomata and Hiroki, Kashiwazaki}, issue = {7}, month = {Jun}, note = {As the number of Internet users increases, their usage also diversifies, and it is important to prevent Identity on the Internet (Digital Identity) from being violated. Unauthorized authentication is one of the methods to infringe Digital Identity. Multi-factor authentication has been proposed as a method for preventing unauthorized authentication. However, the cryptographic authenticator required for multi-factor authentication is expensive both financially and UX-wise for the user. In this paper, we design, implement and evaluate multi-factor authentication using MyNumberCard provided by public personal identification service and WebUSB, which is being standardized., As the number of Internet users increases, their usage also diversifies, and it is important to prevent Identity on the Internet (Digital Identity) from being violated. Unauthorized authentication is one of the methods to infringe Digital Identity. Multi-factor authentication has been proposed as a method for preventing unauthorized authentication. However, the cryptographic authenticator required for multi-factor authentication is expensive both financially and UX-wise for the user. In this paper, we design, implement and evaluate multi-factor authentication using MyNumberCard provided by public personal identification service and WebUSB, which is being standardized.}, title = {Design and Implementation of a multi-factor web authentication system with MyNumberCard and WebUSB}, year = {2019} }