Token Validation

JSON Web Tokens (JWT) have become a cornerstone of modern web authentication and authorization systems. They provide a compact, URL-safe means of representing claims to be transferred between parties. However, the security of your application hinges on how you decode and validate these tokens. In this article, we’ll explore the process of securely parsing and verifying JWT tokens, ensuring your application remains protected against potential vulnerabilities. Understanding JWT Structure Before diving into decoding and validation, it’s essential to understand the structure of a JWT token. A JWT consists of three parts, separated by dots (.): ...

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: ...