The easiest way to do this is with the Linux command:ĭd if=/dev/urandom of=keyfile bs=32 count=1 > tfa.key You can see an example of a directory structure presenting the keys' location in the screenshot below. They might also be sent to the repository by mistake. In this case, you have to be careful because they are in the directory where the site is hosted. (two dots) means that you are leaving the current directory to go up higher.Ī third option, which isn’t recommended, is to keep the key in the configuration files. It must already exist because otherwise, you won’t be able to save any changes. However, for security reasons, I recommend choosing to keep the key in a file outside the website's main directory or as an environment variable (env).įor a file in File location, you need to specify the path where the file is located. In the settings, where the key is taken from, there are three options to choose from. Select Encryption as the key type and set the Key size to 256 bits. For this purpose, proceed to the Key module configuration and add a new key. The first step is to create a key for encryption. If the code is correct, the user is logged in again.The authentication process follows, e.g., by entering a code from an SMS message.If yes, the user is logged out and redirected to the second authentication method. TFA verifies whether the logged-in user should use the second authentication method.If the data are correct, Drupal creates a user session, identifying the user as authenticated.The user enters their login data (login and password) into the form and confirms them.Or conventionally on the site /admin/modules Login process after installation of Two-Factor Authentication (TFA) module If you don’t have a contrib directory, you’ll need to create one.ĭrush: drush en key real_aes encrypt tfa ga_login If you aren’t using Composer, download each of these modules and unzip them in the directory where the site is hosted - /modules/contrib. The fastest way to install all the modules you need is to use Composer and execute the shell command: GA_login - integration with Google Authenticator, a mobile application that generates codes.Real AES or other module adding an encryption method (a list of these modules is listed on the site of the Encrypt module),.Encrypt - allows other modules to encrypt and decrypt data,.Two-factor Authentication (TFA) - main functionality,.To build the two factor authentication presented in this article, you'll need the following modules: The extended issues that we’ll describe in this article will concern the generation of codes in the Google Authenticator application and codes sent to an email address. Implementing the basic version of this functionality comes down to installing several modules and their configuration. Implementation of two factor authentication in Drupal generation of access codes in external applications such as Google Authenticator. The most popular methods of the second authentication at login include: The solution doesn’t guarantee 100% certainty that your data is safe, but it greatly improves data security, for instance, in Drupal. To prevent such a situation, the second method of authentication has been introduced. Along with web development and many services storing sensitive data, such as Facebook or GitHub, the risk of attacks and the possibility that someone unauthorised gains access to your account has increased. The first method refers to the well-known login by entering login and password. Two-step authentication is the process of authenticating the user at login, consisting of two verification methods. Two factor authentication (2FA) is an increasingly popular functionality on websites, and this article will teach you how to completely implement it on a Drupal 9 or 8 site.
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