My main research interest is computer security, in particular the so-called Man-At-The-End Attack which occurs in settings where an adversary has physical access to a device and compromises it by tampering with its hardware or software. My current research interests include

• remote man-at-the-end attacks which occur in distributed systems where untrusted clients are in frequent communication with trusted servers over a network, and a malicious user can get an advantage by compromising an untrusted device;
• man-at-the-end security of Provenance Systems, where we are building a system to protect provenance chains in documents, in particular OpenOffice;
• repeatability in Computer Systems research.



Recent Grants

• August 2011---August 2013, Mitigating Insider Attacks in Provenance Systems, National Science Foundation Grant CNS-1318955, $496,066, PI: Christian Collberg, co-PIs: Sudha Ram, Saumya K. Debray.
• September 2011---August 2013, Man-at-the-End Attacks: Defenses and Evaluation, National Science Foundation Grant CNF-1145913, $269,649, PI: Christian Collberg, co-PIs: Saumya Debray, Loukas Lazos.
• October 2009---September 2013, Theoretical and Practical Approaches to Remote White-Box Security, United States--Israel Binational Science Foundation grant BSF-2008362, $90,684, PI: Amir Hertzberg (Bar Ilan University, Israel), co-PIs: Christian Collberg, Shafi Goldwasser (MIT and Weizmann Institute).

Recent Students

• David Christy
• Patrick P.F. Chan (Postdoc)
• Sam Martin (Masters)
• Alex Warren (Undergraduate)
• Keith Alcock (Research Programmer)