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Dynamic Signature Verification (DSV) is unique among other biometric authentication
technologies as there is no clearly defined method of creating a forgery. This research examined the
perception of the signature to the forger (how easy an individual perceives the signature to be forged),
and whether there were any characteristics common among the groupings of difficulty. The dynamic
variables of the signature were then examined to establish which statistical variables were susceptible
to forgery using forensic tools. Overall, it seems that both the genuine and impostor groups do not
single out a specific dynamic trait within their judgment of an “easy” or “difficult” signature.
Furthermore, it also shows that individuals have difficulty in assigning a speed to their signature – i.e.
the perception of speed is different for each individual (both genuine and impostor), and additionally,
both the impostors and genuine users ranked their signatures differently when asked about the
perceived level of difficulty.