Dr. Hwang has received numerous research grants from the NSF, ONR, AFOSR, IBM, AT&T, MIT Lincoln Lab, Hong Kong Research Council, China 973 Research Agency, etc. As a Principal Investigator, he has led a major NSF/ITR project ($2M) on Grid and P2P security at USC. His research contributions cover the areas of scalable multiprocessors, distributed RAID for clusters, multicore processors, trust management, job scheduling, P2P reputation systems, intrusion detection systems, benchmarking of supercomputers, parallel processing, cloud computing, virtual machines, wireless and future Internet, and network security, etc.