Token-Validation

JSON Web Tokens (JWT) have become a standard method for securely transmitting information between parties as a JSON object. They are widely used in modern identity and access management solutions to carry claims and authorize users. However, correctly decoding and validating JWTs is critical to maintaining security. This article explains the difference between decoding and validation, walks through secure JWT signature verification, and provides best practices for safe JWT handling. ...

JSON Web Tokens (JWT) have become the backbone of modern OAuth 2.0 and OpenID Connect (OIDC) authentication, carrying identity and authorization claims securely between parties. Proper decoding and validation of JWTs are critical to maintaining the security of your applications. What is a JWT? A JWT is a compact, URL-safe token consisting of three parts: Header: Specifies the token type and signing algorithm. Payload: Contains claims about the user or system (e.g., user ID, roles). Signature: Verifies token integrity and authenticity. Example JWT: ...