An identity authentication device is stylus-shaped. A processor is
disposed within the device. The stylus-shaped device includes a
scanner-type device component for capturing within the processor memory a
written signature generated by the stylus while the stylus is writing
upon a surface. A fingerprint sensor is disposed within the grip of the
stylus. The fingerprint sensor enables the capture of a digital signature
of the writer at the same time that the written signature of the writer
is captured. Once the identity of the writer has been authenticated by
comparison against a reference print, the signature of the writer
irrefutable. The device serves the same general purpose and can be used
in lieu of a signature pad. The device is either attached to a surface or
is portable and wireless.