Introduction

In this lesson, you will learn authentication and authorization in ASP.NET for beginners. These concepts are used to secure applications and control user access.

What is Authentication?

Authentication is the process of verifying the identity of a user.

Example:

• Login with username and password

What is Authorization?

Authorization is the process of giving permission to access specific resources.

Example:

• Admin can access dashboard
• User cannot access admin panel

Authentication vs Authorization

• Authentication → Who you are
• Authorization → What you can access

Example in ASP.NET

[Authorize]
public class DashboardController : Controller
{
    public IActionResult Index()
    {
        return View();
    }
}

Real-World Use

• Login systems
• Role-based access (Admin/User)
• Secure APIs

Key Points

• Authentication verifies user identity
• Authorization controls access
• Both are important for security

Internal Links

• Course Page: .NET Course for Beginners