react-native-passkey
v3.0.0
Published
Passkey implementation for React Native
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react-native-passkey
Native Passkeys on iOS 15.0+ and Android API 28+ using React Native.
Installation
Javascript
For the javascript part of the installation you need to run
npm install react-native-passkey
or
yarn add react-native-passkey
Native
For the native part of the installation you need to run
cd ios && pod install
in the root of your React Native project.
Configuration
iOS
There are iOS specific steps you need to go through in order to configure Passkey support. If you have already set up an associated domain for your application you can skip this step.
Set up an associated domain for your application (More info)
You need to associate a domain with your application. On your webserver set up this route:
GET https://<yourdomain>/.well-known/apple-app-site-association
This route should serve a static JSON object containing your team id and bundle identifier. Example (replace XXXXXXXXXX with your team identifier and the rest with your bundle id, e.g. "H123456789.com.mtrx0.passkeyExample"):
{ "applinks": {}, "webcredentials": { "apps": ["XXXXXXXXXX.YYY.YYYYY.YYYYYYYYYYYYYY"] }, "appclips": {} }
In XCode under
Signing & Capabilities
add a new Capability of typeAssociated Domains
. Now add this and replace XXXXXX with your domain (e.g.apple.com
)webcredentials:XXXXXX
Android
The Android specific configuration is similar to iOS. If you have already set up Digital Asset Links for your application you can skip this step.
Associate your app with a domain (More info)
You need to associate a domain with your application. On your webserver set up this route:
GET https://<yourdomain>/.well-known/assetlinks.json
This route should serve a static JSON object containing the following information. Example (replace with your data, replace SHA_HEX_VALUE with the SHA256 fingerprints of your Android signing certificate)
[{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "android_app", "package_name": "com.example", "sha256_cert_fingerprints": [ SHA_HEX_VALUE ] } }]
Usage
Check if Passkeys are supported
import { Passkey } from 'react-native-passkey';
// Use this method to check if passkeys are supported on the device
const isSupported: boolean = Passkey.isSupported();
Creating a new Passkey
import { Passkey, PasskeyRegistrationResult } from 'react-native-passkey';
// Retrieve a valid FIDO2 attestation request from your server
// The challenge inside the request needs to be a base64URL encoded string
// There are plenty of libraries which can be used for this (e.g. fido2-lib)
try {
// Call the `create` method with the retrieved request in JSON format
// A native overlay will be displayed
const result: PasskeyRegistrationResult = await Passkey.create(requestJson);
// The `create` method returns a FIDO2 attestation result
// Pass it to your server for verification
} catch (error) {
// Handle Error...
}
Authenticating with existing Passkey
import { Passkey, PasskeyAuthenticationResult } from 'react-native-passkey';
// Retrieve a valid FIDO2 assertion request from your server
// The challenge inside the request needs to be a base64URL encoded string
// There are plenty of libraries which can be used for this (e.g. fido2-lib)
try {
// Call the `get` method with the retrieved request in JSON format
// A native overlay will be displayed
const result: PasskeyAuthResult = await Passkey.get(requestJson);
// The `get` method returns a FIDO2 assertion result
// Pass it to your server for verification
} catch (error) {
// Handle Error...
}
Force Platform or Security Key (iOS-specific)
You can force users to register and authenticate using either a platform key, a security key (like Yubikey) or allow both using the following methods. This only works on iOS, Android will ignore these instructions.
Create Passkey
Passkey.create()
- Allow the user to choose between platform and security passkeyPasskey.createPlatformKey()
- Force the user to create a platform passkeyPasskey.createSecurityKey()
- Force the user to create a security passkey
Get Passkey
Passkey.get()
- Allow the user to choose between platform and security passkeyPasskey.getPlatformKey()
- Force the user to authenticate using a platform passkeyPasskey.getSecurityKey()
- Force the user to authenticate using a security passkey
Extensions
largeBlob
As of version 3.0 the newly added largeBlob extension should work out of the box for iOS only.
PRF
As of version 3.0 the newly added largeBlob extension should work out of the box for Android only.
Contributing
See the contributing guide to learn how to contribute to the repository and the development workflow.
License
MIT