Patent ID: 8589703
Filing Date: 2013-11-19
Classification: G06F

Abstract:
1. A tamper respondent covering that prevents data that is stored in an electronic part from being accessed as a result of an external shock or attack by erasing the data or by disabling operation of the electronic part, the tamper respondent covering comprising: a power supply device which supplies power; a cover of a predetermined shape, the cover covering a device to be protected, the device including the electronic part; a substrate on which the device is mounted; a metallic portion, which forms an external surface of the cover; a conductive coating, which has a multilayered structure and is coated on an internal surface of the cover; a first insulating coating that is interposed between the metallic portion and the conductive coating in order to electrically isolate the metallic portion and the conductive coating from each other; a contact formed at a portion of the conductive coating; a connector that is disposed between the cover and the substrate with one end of the connector contacting a receiving portion of the substrate and the other end of the connector electrically connected to the contact, the connector disconnectable from the contact in response to the external shock or attack; a tamper detecting device that is mounted on the substrate and detects an electrical disconnection between the connector and the contact when the connector is disconnected from the contact; a second insulating coating that is interposed between multilayered conductive coatings; and a controller configured to: wherein the multilayered conductive coating comprises more than two layers of the conductive coating such that each of a multilayered insulating coating is interposed between layers of the multilayered conductive coating.