I am Dr. Xukai Zou, an Assistant Professor with the Computer Science Department of Purdue University School of Science at IUPUI. I received my Ph.D in Computer Science from the University of Nebraska-Lincoln (UNL) and worked as a research associate at UNL before joining IUPUI. My research is in Applied Cryptography, Communication Networks and Security, Design and Analysis of Algorithms, and Grid Computing. I have published three books and over twenty articles in these areas. I am a recipient of the U.S. NSF Cyber Trust Awards and the leading author of the books "Secure Group Communication over Data Networks" (Springer) and "Trust and Security in Collaborative Computing" (World Scientific). I chose the UNL PhD Program because it is a top PhD program.