Extended Abstract: Trustworthy System Security through 3-D Integrated Hardware

While hardware resources in the form of both tran-sistors and full microprocessor cores are now abundant, economic factors prevent specialized hardware mecha-nisms required for secure processing from being inte-grated into commodity parts. We are exploring a novel way in which commodity hardware can be augmented after fabrication to enhance secure operation for only those systems that require it. Our methods will be applicable to a wide range of security problems, includ-ing the detection and isolation of hardware subversion and Trojan horses, cache-based side channels in chip multi-processors (CMPs), embedded systems security, and hardware intrusion detection and prevention. Utilizing off-the-shelf components to build trustwor-thy systems results in a constant battle with the underly