![]() Google Authenticator is an app built by Google. The Google Authenticator app: a crash course So if you do not want to use Google Authenticator for WordPress 2FA, refer to the list of supported 2FA apps. NOTE: The WP 2FA plugin for WordPress also supports Authy, FreeOTP and several other 2FA apps. We will also explain how with a two-factor authentication plugin and the Google Authenticator app you can easily setup 2FA on your WordPress website. ![]() In this article we’ll assume that you know what 2FA is, so we can show you how Google Authenticator works. Both fall into the same category of “something you know”.įor more detailed information on how 2FA works refer to how two-factor authentication works on WordPress. For example, if you use 2 passwords to login, that doesn’t qualify as 2FA. Note that 2FA is not as simple as just using any 2 things for authentication. somewhere you are like, GPS-based authentication.you do like a swipe pattern password on a phone.These factors are often grouped into a number of labels. Improving defense in depth with two-factor authenticationĢFA uses two factors to login. One of them is to implement two-factor authentication (2FA). There are several ways how to harden the authentication to improve the defence in depth of your WordPress login mechanism. ![]() When you manage a WordPress website, one of the most important aspects of security is authentication, a.k.a. You do not want to be compromised by the failure of a single component. As a rule, the step is chosen with a duration of 30 seconds, and an OTP is automatically generated in the application every 30 seconds.Whenever you implement a security measure, you should also have some sort of fallback. This algorithm is based on the previous one and uses a time step as a variable. Time-based One-Time Password Algorithm (TOTP) After the user used all the passwords from the list, he had to visit the bank office to get a new list. For example, a list of generated passwords provided by the bank was used to confirm access or transactions on a user's bank account. This algorithm is not very handy, but it was often used in the 2000s when there were no convenient applications. Thus, if an attacker intercepts the OTP code, he won't be able to use it again. If the server and the client know the secret key and increment the counter equally at each user input, the resulting code value will be the same, and an OTP will change at each input. The result of the execution is quite a long value, so the code is reduced to 6-8 characters for the user's convenience. HOTP: HMAC-Based One-Time Password Algorithm To keep the password constantly changing, we need to enter some variable and use it in the algorithm. Based on this key, we will generate the one-time passwords. The process of passing the secret key can be as follows: the user either scans the QR code or enters the secret key manually. To set up 2FA on the server, a secret key is generated and transferred to the user's OTP-generating application. The user then opens an OTP-generating application, such as Google Authenticator, and enters the generated code. The authentication process is illustrated in the following diagram:Īfter the user logs in with their username and password, one is prompted to enter an OTP. The main distinguishing feature of these protocols is that the server does not need to send an OTP to the user's phone or email. Let's take a closer look at TOTP/HOTP protocols and their implementation. If a malicious party has obtained your password through theft or guessing, they will not be able to access your account without confirming the second factor.
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