When ID tokens are available, you can use them to securely authenticate with your app’s backend, or to automatically sign up the user for a new account without the need to verify the user’s email address. To sign in or sign up a user with an ID token, send the token to your app’s backend.
What is an ID token for?
ID tokens are used in token-based authentication to cache user profile information and provide it to a client application, thereby providing better performance and experience.
How do I validate an ID token?
What to Check When Validating an ID Token
- Retrieve and parse your Okta JSON Web Keys (JWK), which should be checked periodically and cached by your application.
- Decode the ID token, which is in JSON Web Token format.
- Verify the signature used to sign the ID token.
- Verify the claims found inside the ID token.
Where are ID tokens stored?
A JWT needs to be stored in a safe place inside the user’s browser. If you store it inside localStorage, it’s accessible by any script inside your page. This is as bad as it sounds; an XSS attack could give an external attacker access to the token.
Can ID token be used instead of access token?
ID Tokens vs Access Tokens
You can pass an ID Token around different components of your client, and these components can use the ID Token to confirm that the user is authenticated and also to retrieve information about them. Access tokens, on the other hand, are not intended to carry information about the user.
How do I find my ID token?
An ID token is available when a Credential object’s user ID matches the user ID of a Google account that is signed in on the device. To sign in with an ID token, first retrieve the ID token with the getIdTokens method. Then, send the ID token to your app’s backend.
How is ID token different from access token?
Access token used in token-based authentication to gain access to resources by using them as bearer tokens. Refresh token is a long-lived special kind of token used to obtain a renewed access token. ID token carries identity information encoded in the token itself, which must be a JWT.
How do I know if my ID token is expired?
js Admin SDK, you can check for a revoked or expired ID token when calling verifyIdToken() by setting the checkRevoked parameter to true . Whether to check if the ID token was revoked. This requires an extra request to the Firebase Auth backend to check the tokensValidAfterTime time for the corresponding user.
Store your access token in memory, and store the refresh token in the cookie: Link to this section
- Use the secure=true flag so it can only be sent over HTTPS.
- Use the SameSite=strict flag whenever possible to prevent CSRF.
How do I invalidate a token?
A common approach for invalidating tokens when a user changes their password is to sign the token with a hash of their password. Thus if the password changes, any previous tokens automatically fail to verify.
With cookies, the access token is still hidden, attackers could only carry out “onsite” attacks. The malicious scripts injected into the web app could be limited, or it might not be very easy to change/inject more scripts. Users or web apps might need to be targeted first by attackers.
When should I use refresh token?
So why does a web application need a refresh token? The main reason to use refresh tokens in web applications is to reduce the lifetime of an access token. When a web application obtains an access token with a lifetime of five to 10 minutes, that token will likely expire while the user is using the application.
How do I send a refresh token?
To use the refresh token, make a POST request to the service’s token endpoint with grant_type=refresh_token , and include the refresh token as well as the client credentials.
Is ID token secure?
The ID Token is a security token that contains Claims about the Authentication of an End-User by an Authorization Server when using a Client, and potentially other requested Claims. The ID Token is represented as a JSON Web Token (JWT). ID Token contains claims about user authentication and other claims.