Dynamic Signature Variable Traits in Signature Forgery

Dynamic Signature Variable Traits in Signature Forgery centers on the fact that the signature may not be verified at that specific moment (unlike the other biometrics), but may be validated at a later date. Furthermore, understanding an impostor distribution is also a challenge in the fact that other biometrics use a zero-effort attempt, “where an impostor uses his or her own biometric sample and claims the identity of a different enrollee” (WG1, 2005). Thus, dynamic signature verification is unique among other biometric authentication methodologies as there is no clear defined way of creating a forgery. This research examines two aspects of a forgery – the first is the perception of the signature to forgery (how easy an individual perceives the signature to be forged), and the second is the amount of knowledge that a forger has about a signature. The dynamic variables of the signature were then examined to establish which statistical variables were susceptible to forgery using forensic tools. For dynamic signature verification, a zero-effort attempt would cause the forger to write their own name instead of that of the target.