International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

This paper focuses on multi-factor authentication methods. It primarily addresses biometric methods, in particular authentication through written expression. It summarises the results of many years of research activities by the authors in the field of the dynamic biometric signature1 (DBS), including new experiments. It concludes by comparing this type of signature with a signature based on cryptographic methods with a view to the current eIDAS Regulation.