ASP.NET Core Authentication & Security: Build Production-Ready Identity, JWT, OAuth, OpenID Connect, and Secure Authorization Systems

Build ASP.NET Core Security Systems You Can Trust

Your app works. Users authenticate. Endpoints are protected.

But is it truly secure?

ASP.NET Core Authentication & Security takes you beyond basic implementation into real-world, production-ready security design. This book shows you not just how authentication works—but how to build systems that hold up under real conditions.

What You’ll Learn

• How authentication and authorization actually behave in ASP.NET Core

• Designing secure Identity systems and managing users correctly

• Building and validating JWT-based authentication

• Creating robust token systems with refresh, rotation, and revocation

• Moving beyond roles into claims-based and policy-based authorization

• Implementing OAuth 2.0, OpenID Connect, and external providers

• Securing APIs and protecting against real-world vulnerabilities

• Preparing applications for production security and deployment

Who This Book Is For

For developers who already know ASP.NET Core fundamentals and want to move from “it works” to it’s secure and production-ready.

Why This Book Matters

This is not a setup guide. It’s a structured progression from basic authentication to complete security system design.

You’ll learn how to:

• Think in terms of trust, not just implementation

• Identify weaknesses before they become risks

• Build scalable, secure systems across APIs and services

Stop guessing about security. Start designing it with confidence.