Four eye principle using asp net core identity


ASP.NET is a popular programming language used for building web applications. One of the key features of ASP.NET is its ability to handle user authentication and authorization. In this article, we will explore how to implement the four-eye principle using ASP.NET Core Identity.

What is the Four Eye Principle?

The four-eye principle, also known as the two-man rule, is a measure that requires the involvement of at least two individuals to perform critical actions. This principle is commonly used in sensitive such as financial transactions, system administration, and data access.

the Four Eye Principle in ASP.NET Core Identity

ASP.NET Core Identity provides a robust framework for managing user authentication and authorization. To implement the four-eye principle, we can leverage the built-in features of ASP.NET Core Identity.

Step 1: up ASP.NET Core Identity

To get started, we need to set up ASP.NET Core Identity in our project. This involves adding the necessary NuGet packages and configuring the Identity services in the .cs file.

Step 2: Implementing the Four Eye Principle

Once ASP.NET Core Identity is set up, we can proceed with implementing the four-eye principle. In this example, we will demonstrate how to require two administrators to approve a user's registration.

In the above code snippet, we have a Register action in the UserController. When a user submits the registration form, we create a new IdentityUser and to register it using the _userManager. If the registration is , we send an email to the administrators and redirect the user to a “RegistrationPending” page.

Step 3: Approving the Registration

Now, let's implement the approval process for the user registration. We will create a new action in the AdminController that allows administrators to approve or reject the registration.

In the above code snippet, we have an ApproveRegistration action in the AdminController. When an approves the registration, we add the user to the “User” role and send an approval notification email to the user. Finally, we redirect the administrator to a “RegistrationApproved” page.


By leveraging the features of ASP.NET Core Identity, we can easily implement the four-eye principle in our web applications. This provides an additional layer of security and ensures that critical actions are reviewed and approved by multiple individuals. Remember to adapt the implementation to your specific and business logic.

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