Explore JWT authentication in ASP.NET Core with this comprehensive tutorial video. Learn to implement JSON Web Tokens in .NET 7, .NET 6, and .NET 5 using C# and Minimal APIs. Dive into key concepts such as symmetric and asymmetric keys, JSON Web Keys (JWK), and key rollover. Gain hands-on experience with creating and loading keys, signing JWTs, configuring JwtBearer, and understanding its internal workings. Master public key resolution, token validation parameters, claim mapping, and external token validation. Discover how to use JWK for validation, implement external token usage, and create public key tokens. By the end of this tutorial, acquire the skills to build robust authentication systems in ASP.NET Core applications.