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mutli_factor_authentication.md

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Mutli-Factor Authentication

Fae supports using one time passwords (OTP), via an authenticator app, to increase security to your app.

Configure

The MFA feature uses ActiveRecord encrypted attributes. To set this up, first you must generate a key set. Run the following command in your command line.

# Generates a random key set and outputs it to stdout
./bin/rails db:encryption:init

This should return something like the following:

active_record_encryption:
  primary_key: Qw25fZjaxhxdWOKFyHjyKyYvVq9uA0Ga
  deterministic_key: FFSSjMQsRxWU4H1mH96JBW4o1HJF8wZ5
  key_derivation_salt: Vgo7V3USqaODX1Vn5H9HyHJmFGo7yEOA

Next add these values as the following environmental varables:

  PRIMARY_KEY=Qw25fZjaxhxdWOKFyHjyKyYvVq9uA0Ga
  DETERMINISTIC_KEY=FFSSjMQsRxWU4H1mH96JBW4o1HJF8wZ5
  KEY_DERIVATION_SALT=Vgo7V3USqaODX1Vn5H9HyHJmFGo7yEOA

Finally, add the following to config/application.rb

  config.active_record.encryption.primary_key = ENV["PRIMARY_KEY"]
  config.active_record.encryption.deterministic_key = ENV["DETERMINISTIC_KEY"]
  config.active_record.encryption.key_derivation_salt = ENV["KEY_DERIVATION_SALT"]

Once this is all done, go to '/admin/root' and check the Multi-Factor Authentication Enabled? field and save. This will start the process of setting up mfa on your currently logged in account.

Admins and Super Admins have the ability to toggle the mfa feature for other users. Going to /admin/users, the toggle titled MFA Active can deactivate or reactivate the MFA login requirements for individual users. (NOTE: deactivating/reactivating MFA for a user does NOT retain their previous set up, causing them to have to set it up from scatch again.)