Increased Design Security Through Reconfigurable Analog and Mixed Signal Devices
Recent advances in device integration have allowed the _____ of reconfigurable
devices that encompass a wide variety of common analog functions. The use of such devices has had
significan positive effects on Design For Security (DFS)
Since the devices have a defined set of resources
that can be configured in many ways
the overall device function is determined entirely by its programmable configuration.
As a result, there are little or no "clues to function" provided by a visual
examination of the PCB.
Many devices, including the
have security features to prevent configuration readback. The reconfigurability
of the devices allow for a tampering defense through "configuration scrubbing", or the
loading of "white" configurations.