His research interests are in systems, security, and networking. He has worked on untrusted computation, untrusted storage, untrusted networking, failure detection in distributed systems, denial-of-service defense, verifiable auctions, and network architecture. His honors include an Air Force Young Investigator Award, an NSF CAREER Award, a Sloan Research Fellowship, a Teaching Excellence Award from the UT College of Natural Sciences, the Intel Early Career Faculty Honor Program, and the UT Society for Teaching Excellence. He received his B.A. from Harvard and his Ph.D. from the Massachusetts Institute of Technology, both in Computer Science.