Method and apparatus for prevention of tampering and unauthorized extraction of information from microdevices

摘要

A system for protection of information on a secured microdevice, including a control unit, an obliteration driver, and a circuit arranged to conduct the at least one pulse of electric current. The circuit incorporates at least one resistive load having a localized predetermined resistance such that the delivered portion of stored electric energy is locally resistively converted into a mechanical energy of motion during a time period shorter than a duration of time needed for heat diffusion out a volume in the proximity of the at least the fraction of stored information.

主权项

1. A system for prevention of tampering, unauthorized use, and unauthorized extraction of information from at least one secured microdevice, comprising:
a control hardware arranged to generate a command to trigger a controlled obliteration of at least a fraction of stored information on the at least one secured microdevice; an obliteration driver arranged to store electric energy and to generate, when triggered by the control hardware, at least one pulse of electric current; a circuit arranged to conduct the at least one pulse of electric current toward at least one resistive dissipative load structure arranged in a proximity of the at least the fraction of stored information on the at least one secured microdevice, and connected to controllably release a delivered portion of stored electric energy in the proximity of the at least the fraction of stored information on the least one secured microdevice, such that the at least the fraction of stored information has been obliterated during the controllable release; wherein, the circuit arranged to conduct the at least one pulse of electric current incorporates at least one resistive load having a localized predetermined resistance such that the delivered portion of stored electric energy is locally resistively converted into a mechanical energy of motion during a time period shorter than a duration of time needed for heat diffusion out a volume in the proximity of the at least the fraction of stored information.