His current research focuses on building secure systems, all the way from hardware to system software to applications that run on them. Tiwari and his team have designed and built the first secure processor that obfuscates all digital signal outputs, including even addresses to physical memory. Tiwari received a PhD from UC Santa Barbara (2011) and was a post-doctoral fellow at UC Berkeley (2011-13) before joining UT. Sanjay Shakkottai Sanjay Shakkottai is a Professor and holds the Ashley H. Priddy Centennial Professor in Engineering in the Department of Electrical and Computer Engineering at The University of Texas at Austin.