  Fabrication-less design houses outsource their designs to 3rd party foundries
to lower fabrication cost. However, this creates opportunities for a rogue in
the foundry to introduce hardware Trojans, which stay inactive most of the time
and cause unintended consequences to the system when triggered. Hardware
Trojans in traditional CMOS-based circuits have been studied and
Design-for-Trust (DFT) techniques have been proposed to detect them.
  Different from traditional circuits in many ways, reversible circuits
implement one-to-one, bijective input/output mappings. We will investigate the
security implications of reversible circuits with a particular focus on
susceptibility to hardware Trojans. We will consider inherently reversible
circuits and non-reversible functions embedded in reversible circuits.
