参考 ● Add User Authentication to Your Node.js App https://developer.okta.com/code/nodejs/ ● okta Help Center WebAuthn (MFA) https://help.okta.com/en/prod/Content/Topics/Security/mfa-webauthn.htm ● How FIDO2 + WebAuthn Offer a Seamless Secure Login https://www.okta.com/blog/2019/04/how-fido2-webauthn-offer-a-seamless- secure-login/ ● パスワードのいらない世界へ : FIDOアライアンスとFIDO認証の最新状況 https://www.slideshare.net/FIDOAlliance/2020-0218-fidofido