What are the different methods for token validation?

What are the different methods for token validation?

Token validation methods are techniques used to verify the authenticity of tokens in authentication systems. Common methods include signature verification, token introspection, and using a shared secret.

Can you explain how signature verification works?

Sure! Signature verification involves checking the digital signature of a token against a known public key. If the signature matches, the token is considered valid.

What is token introspection?

Token introspection is a method where the token is sent to the authorization server to check its validity and retrieve associated metadata.

Are there any security concerns with these methods?

Yes, each method has its own security considerations. For example, if the private key used for signature verification is compromised, it can lead to unauthorized access.