Description: Token validation is the process of verifying that a token is valid and has not been altered. A token is a string of characters used to authenticate and authorize a user in a system, particularly in the context of APIs and web applications. This process is crucial for ensuring the security of applications, as it allows servers to confirm that the received token comes from a trusted source and has not been tampered with. Token validation may include verifying the digital signature, checking the expiration date, and validating the permissions associated with the token. This mechanism helps prevent unauthorized access and attacks such as identity theft. In an environment where applications communicate over networks, token validation becomes an essential component for maintaining data integrity and confidentiality, ensuring that only legitimate users can access specific resources.
