Use Rails.application.secret_key_base directly

lib/avo/services/encryption_service.rb

@@ -28,28 +28,7 @@ def decrypt
       private
 
       def encryption_key
-        secret_key_base[0..31]
-      end
-
-      def secret_key_base
-        # Try to fetch the secret key base from ENV or the credentials file
-        key = ENV["SECRET_KEY_BASE"] || Rails.application.credentials.secret_key_base
-
-        # If key is blank and Rails version is less than 7.2.0
-        # Try to fetch the secret key base from the secrets file
-        # Rails 7.2.0 made secret_key_base from secrets obsolete
-        if key.blank? && (Gem::Version.new(Rails.gem_version) < Gem::Version.new("7.2.0"))
-          key = Rails.application.secrets.secret_key_base
-        end
-
-        return key if key.present?
-
-        # Avoid breaking in production
-        # All features relying on encryption will not work properly without a configured secret key base
-        return SecureRandom.random_bytes(32) if Rails.env.production?
-
-        raise "Unable to fetch secret key base. Please set it in your credentials or environment variables\n" \
-          "For more information check https://docs.avohq.io/3.0/encryption-service.html#secret-key-base"
+        Rails.application.secret_key_base[0..31]
       end
     end
   end