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Mastering Asp Net Core Identity Configuration A Complete Guide

Kenneth Jul 13, 2026

Choosing to build your application with ASP.NET Core? Leveraging ASP.NET Core Identity can significantly simplify user authentication and authorization. Let's delve into the configuration process, ensuring your application remains secure and user-friendly.

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𝗔𝗿𝗲 𝘆𝗼𝘂 𝘀𝘁𝗿𝘂𝗴𝗴𝗹𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗔𝘂𝘁𝗵𝗲𝗻𝘁𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗔𝘂𝘁𝗵𝗼𝗿𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗔𝗦𝗣 .𝗡𝗘𝗧 𝗖𝗼𝗿𝗲? This guide helped a lot of developers Securing your… | Anton Martyniuk | 41 comments

ASP.NET Core Identity offers robust built-in functionalities, such as user registration, password hashing, account confirmation, and password reset. Let's explore how to configure it for your application.

User Registration with ASP.NET Core Identity - Code Maze
User Registration with ASP.NET Core Identity - Code Maze

Getting Started with ASP.NET Core Identity

First, ensure you've included the necessary packages in your project. For new applications, use the ` Individual User Accounts` template during creation. If you're working with an existing project, add the Identity packages through NuGet.

the asp net core info sheet shows what it is like to work on an application
the asp net core info sheet shows what it is like to work on an application

Next, create the DbContext class for your Identity data. In your Startup.cs file, follow these steps to set up Identity:

ConfigureIdentity

What is the difference between ASP.NET and ASP.NET Core?
What is the difference between ASP.NET and ASP.NET Core?

In your Startup.cs' ConfigureServices method, include the following code:

services.AddDefaultIdentity<IdentityUser>() .AddEntityFrameworkStores<ApplicationDbContext>();

Then, ensure you set your default UI theme:

A Step by Step Guide for ASP.NET Core Configuration
A Step by Step Guide for ASP.NET Core Configuration

services.Configure<IdentityOptions>(options => { options.SignIn.RequireConfirmedAccount = true; options.Password.RequiredLength = 6; options.Password.RequireUppercase = false; options.Password.RequireLowercase = false; options.Password.RequireDigit = false; options.Password.RequireNonAlphanumeric = false; });

CreateIdentityPages

ASP.NET Core Identity comes with pre-built pages, but you'll need to create them. In the terminal, navigate to your project directory and run:

How to: Access Nested List View or Master Detail View Environment (ASP.NET Core Blazor and Windows Forms) | XAF: Cross-Platform .NET App UI & Web API
How to: Access Nested List View or Master Detail View Environment (ASP.NET Core Blazor and Windows Forms) | XAF: Cross-Platform .NET App UI & Web API

dotnet user-secrets set Userjmuen.templates;$Templates paved{Name}api

Then, initialize the Identity pages with:

Nabi Karampoor on LinkedIn: #dotnet #aspnetcore #csharp #efcore | 49 comments
Nabi Karampoor on LinkedIn: #dotnet #aspnetcore #csharp #efcore | 49 comments
ASP.NET Core Authentication Using ASP.NET Core Identity
ASP.NET Core Authentication Using ASP.NET Core Identity
ASP.NET Core 5.0 Authentication with Azure Active Directory
ASP.NET Core 5.0 Authentication with Azure Active Directory
ASP.NET Core Authentication Using ASP.NET Core Identity
ASP.NET Core Authentication Using ASP.NET Core Identity
asp net core identity configuration
asp net core identity configuration
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ASP.Net Projects with Source Code
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How to Configure ASP.NET Core 3.1 Angular SPA, Identity Server 4 (Authentication) with PostgreSQL
owasp top 10 web application vulnerabilities
owasp top 10 web application vulnerabilities
the identity access management iam is shown in blue and white, along with other information
the identity access management iam is shown in blue and white, along with other information

dotnet razor pages -g

For API-focused projects, use the following command instead:

dotnet razor pages -g -e

Customizing ASP.NET Core Identity

ASP.NET Core Identity can be tailored to meet your application's specific needs. Let's explore some customization options.

The IdentityUser interface can be extended to accommodate additional data. Consider creating a new class derived from IdentityUser. For example:

public class ApplicationUser : IdentityUser { public string City { get; set; } }

Customizing User Data

To use this new ApplicationUser class, update the DbContext class:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser> { // ... }

Then, in your Startup.cs file, replace the AddDefaultIdentity line with:

services.AddDefaultIdentity<ApplicationUser>() .AddEntityFrameworkStores<ApplicationDbContext>();

Customizing Identity functionalities

For more advanced customizations, you can create a custom IUserStore or IRoleStore interface, or even a custom UserManager or RoleManager class.

The journey through configuring ASP.NET Core Identity needn't be daunting. With the wealth of built-in functionalities and its flexibility, it streamlines user management and enhances your application's security.

Ready to dive deeper into ASP.NET Core Identity? Explore the documentation or delve into custom IdentityServer4 configuration for more granular control over your user authentication processes.