DEVICE FOR SECURING AN ELECTRONIC DOCUMENT

摘要

PURPOSE: An apparatus for protecting an electronic document is provided to protect a card from electromagnetic fault attack (EMFA), without detecting the attack. CONSTITUTION: A passive element (40) generates a current in a place where there is electric field or magnetic field. If the intensity of the current exceeds a determined threshold, a triggering unit (50) triggers protective action to the detection of the current. The passive element is differently calibrated in order to detect a different type of a different kind of electric field or magnetic field. The passive element is arranged on a layer of an active part of a component. The triggering unit includes a fuse arranged in serial with the passive element.