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Google Chrome #Web Development

Build your first WebAuthn app (Japanese | English subtitles)

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Have you ever wondered how to enable biometric authentication on the web? This codelab walks you through how to use WebAuthn to implement reauthentication experience on your website using a biometric sensor. 

Before you begin

The Web Authentication API, also known as WebAuthn, lets you create and use origin-scoped, public-key credentials to authenticate users.

The API supports the use of BLE, NFC, and USB-roaming U2F or FIDO2 authenticators - also known as security keys - as well as a platform authenticator, which lets users authenticate with their fingerprints or screen locks.

In this codelab, you build a website with a simple reauthentication functionality that uses a fingerprint sensor. Reauthentication protects account data because it requires users who already signed in to a website to authenticate again when they try to enter important sections of the website or revisit the website after a certain amount of time.


- Basic understanding of how WebAuthn works

- Basic programming skills with JavaScript

What you'll do

- Build a website with a simple reauthentication functionality that uses a fingerprint sensor

What you'll need

One of the following devices:

- An Android device, preferably with a biometric sensor

- An iPhone or iPad with Touch ID or Face ID on iOS 14 or higher

- A MacBook Pro or Air with Touch ID on macOS Big Sur or higher

- Windows 10 19H1 or higher with Windows Hello set up

One of the following browsers:

- Google Chrome 67 or higher

- Microsoft Edge 85 or higher

- Safari 14 or higher

Info here:

Start here:!/webauthn-codelab-start?

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