What is Authentication in ASP.NET Core? See Example

Authentication in ASP.NET Core is the process of verifying a user’s identity before granting access to an application. ASP.NET Core provides built-in support for cookie-based authentication, JWT, and Identity framework, making it easy to secure web apps and APIs.

Key Features:

• Supports multiple authentication methods (cookies, JWT, OAuth)
• Integration with ASP.NET Core Identity for user management
• Secure login, registration, and password management
• Works with Web API and MVC apps
• Extensible and customizable

Example:
Configuring cookie authentication in Program.cs:

builder.Services.AddAuthentication("MyCookieAuth")
    .AddCookie("MyCookieAuth", options =>
    {
        options.LoginPath = "/Account/Login";
    });

var app = builder.Build();
app.UseAuthentication();
app.UseAuthorization();

ASP.NET Core authentication ensures that only authorized users can access protected resources, enhancing application security.

Citations:

• Learn more on Savanka
• Official ASP.NET Core Documentation