Force user to change password in asp net core 5


ASP.NET is a popular programming language used for building web applications. In this article, we will discuss how to force users to password in ASP.NET Core 5.


For security reasons, it is often necessary to users to change their passwords. This helps to prevent unauthorized to user accounts and ensures that passwords are regularly updated.


To force users to change their password in ASP.NET Core 5, we can utilize the built-in functionality provided by the Identity framework. The Identity framework is a part of ASP.NET Core that handles user authentication and authorization.

First, we need to configure the Identity framework in our ASP.NET Core application. This can be done in the Startup.cs file. We need to add the following code to the ConfigureServices method:

services.Configure( =>
    options.Password.RequireDigit = true;
    options.Password.RequiredLength = 8;
    options.Password.RequireNonAlphanumeric = true;
    options.Password.RequireUppercase = true;
    options.Password.RequireLowercase = true;
    options.Password.RequiredUniqueChars = 6;
    options.SignIn.RequireConfirmedEmail = true;
    options.User.RequireUniqueEmail = true;

This code configures the password requirements for users. In this example, we are requiring the password to have at least 8 characters, including at least one digit, one non-alphanumeric character, one uppercase letter, one lowercase letter, and six unique characters.

Forcing Password Change

Once the Identity framework is configured, we can force users to change their password by setting a flag in the user's account. This flag can be stored in the user's profile or in a separate table.

When a user logs in, we can check if the flag is set and redirect them to a password change page if necessary. Here is an example of how this can be implemented:

public async Task

In this example, we are checking if the user's password has expired using the IsPasswordExpiredAsync method provided by the Identity framework. If the password has expired, we redirect the user to the ChangePassword action in the Account controller.


Forcing users to change their password is an important security measure in web applications. In this article, we discussed how to this functionality in ASP.NET Core 5 using the Identity framework. By the password requirements and checking for password expiration, we can ensure that users regularly their passwords and maintain a secure .

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