Darren Cofer is a Principal Systems Engineer with Rockwell Collinsí Advanced Technology Center.  He received the Ph.D. in Electrical and Computer Engineering from The University of Texas at Austin.  His principal area of expertise is applying formal methods and tools to the verification and certification of high-integrity avionics systems.  He is the principal investigator for the air vehicle team in DARPA's High Assurance Cyber Military Systems project, focusing on formal proof of security properties for unmanned air vehicles.