Biometric signature

A biometric signature is a form of electronic signature that captures, in addition to the handwritten trace image, dynamic behavioural data: stylus pressure, speed, angle of inclination, acceleration. These parameters create a unique fingerprint that is difficult to imitate. It offers more robust authentication than a simple signature image. Biometric data is considered sensitive under the GDPR and requires explicit consent. Biometrics alone is not sufficient to reach the AES eIDAS level; it must be combined with strong authentication.