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Showing posts from January, 2025

Understanding JWT and Its Implementation in .NET

  Understanding JWT and Its Implementation in .NET Introduction In modern applications, secure and efficient communication between client and server is essential. JSON Web Token (JWT) has become a popular standard for authenticating and authorizing users. In this blog post, we will explore JWT, understand its structure, and implement it in a .NET application. What is JWT? JWT stands for JSON Web Token , a compact and self-contained method for securely transmitting information between parties as a JSON object. It is widely used in stateless authentication mechanisms in web applications. Key Features: Compact : Suitable for URLs, cookies, and HTTP headers. Self-contained : Contains all necessary information about the user (e.g., claims). Secure : Uses cryptographic signatures to verify authenticity. Structure of a JWT A JWT consists of three parts: Header : Contains the token type ( JWT ) and hashing algorithm (e.g., HS256 ). Payload : Contains claims such as user information and me...