A free security tool called Google Authenticator creates special codes for two-factor authentication (2FA). By forcing users to submit two pieces of evidence—something they know, like a password, and something they have, like a smartphone—2FA adds an extra layer of protection to the authentication process.

The Google Authenticator app generates a time-based one-time password (TOTP) valid for a short period, typically 30 seconds. This code can be used as the second factor in a 2FA setup, along with a password or other first factor.

To use Google Authenticator, you must first enable 2FA on your account or app. Then, download and install the Google Authenticator app on your smartphone or tablet. When you log in to your account or app, you will be prompted to enter the unique code generated by the app along with your password. This ensures that even if someone knows your password, they cannot log in without access to the second-factor code generated by the Google Authenticator app.

Overall, 2FA adds an extra layer of security to your online accounts and helps protect you against various online attacks, such as phishing and password theft.

To implement 2-Factor Google Authenticator using ASP Net Core and Angular, you can follow the below steps.

Step 1. Install the Google Authenticator NuGet package.

Step 2. In the Asp Net Core application, create a class named “TwoFactorAuthenticatorService” and add the following code.

Step 3. In the Angular application, create a component named “TwoFactorAuthenticatorComponent” and add the following code.

Step 4. In the Angular application, create a template for the “TwoFactorAuthenticatorComponent” component and add the following code.

Step 5. In the Asp Net Core application, create a controller named “TwoFactorAuthenticatorController” and add the following code.

Summary

This article discusses the implementation of a 2-Factor Google Authenticator using ASP Net Core and Angular in detail.

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