Hanjun Xiao

Title: Hanjun Xiao: Innovator in Covert Timing Channel Detection

Introduction

Hanjun Xiao is a notable inventor based in Philadelphia, PA (US). He has made significant contributions to the field of computer science, particularly in the area of detecting covert timing channels. His innovative approach has the potential to enhance security measures in computing environments.

Latest Patents

Hanjun Xiao holds a patent titled "Methods, systems, and computer readable media for detecting covert timing channels." This patent introduces a mechanism known as time-deterministic replay (TOR), which can reproduce the execution of a program with precise timing. The challenge of reproducing timing in program execution arises from various sources of timing variability. TOR effectively mitigates or eliminates these sources, allowing for accurate timing reproduction within 1.85% of the original execution. The patent also discusses the application of TOR in detecting covert timing channels, which can be exploited to exfiltrate information from compromised machines.

Career Highlights

Throughout his career, Hanjun Xiao has worked at prestigious institutions such as the University of Pennsylvania and Georgetown University. His work has focused on advancing the understanding of timing channels and improving security protocols in computing.

Collaborations

Hanjun has collaborated with notable colleagues, including Ang Chen and William Bradley Moore. Their combined expertise has contributed to the development of innovative solutions in the field of computer security.

Conclusion

Hanjun Xiao's work in detecting covert timing channels represents a significant advancement in computer security. His innovative methods and systems have the potential to protect sensitive information from unauthorized access.