The present invention provides a new source of information, linguistic models, to improve the accuracy of mathematical recognition. The driving assembly is mounted in the first sleeve and has a first rotating tube, a seat and a second rotating tube. Each PPDE comprises many processing units each designed to store intrusion signatures as a sequence of data with selected operation codes. The method also comprises notifying a user to proffer a biometric sample in order to verify the identity of said user, and detecting a proffered biometric at a sensor to obtain a proffered biometric sample.