1. Intelligent Systems Security Lab, Department of Computer Science, University of Dayton, Dayton, OH, USA. E-mails: phu@udayton.edu, sunkaralakuntavenkr1@udayton.edu, caps01@udayton.edu, piercea7@udayton.edu
2. Department of Software and Information Systems, University of North Carolina at Charlotte, Charlotte, NC, USA. E-mails: amohant1@uncc.edu, msridhar@uncc.edu