Ionut Constandache

Email: ionut [AT] cs [dot] duke [dot] edu Office: D307 LSRC Office Phone: (919) 660-6599 Computer Science Department Duke University

I am a second year PhD student in the Department of Computer Science at Duke University. I am working under the supervision of Professor Jeff Chase and Professor Romit Roy Choudhury. I earned my Bachelor of Science degree in Computer Science in September 2005 from University Politehnica of Bucharest, Romania.

CV: pdf Last Updated January 2008

Interests

My research interests lie in mobile computing, distributed systems and operating systems. My interests include automatic resource configuration and provisioning, security, virtualization technologies and energy-efficiency.

Projects

• Micro-Blog: a virtual information telescope using mobile phones and social participation
  • Energy-Efficient Localization Using Mobile Phones: Localization solution that multiplexes between different localization sensors (GPS, WIFI and GSM) to maximize location accuracy for a given energy budget. The project investigates how mobility profiles and additional sensors (e.g. accelerometers) can be used to improve location accuracy.


• ORCA: a system for dynamic on-demand provisioning of shared networked resources.
  • Secure Control of Portable Images: protocols for mutual authentication and secure key exchange between a virtual machine instantiated from a portable image (e.g. a generic virtual appliances with no keys wired in) and the machine's authorized controller (either a virtual computing utility or the VM owner).
  • Node Agent: web service alowing remote programmatic control and post-install of drivers and software packages in a virtual machine(VM).


• COPSE: a mobile computing testbed
• VirtualWifi: Xen DOM U device driver allowing wireless network card configuration commands to be pushed and executed in Dom0.

Publications

• Secure Control of Portable Images in a Virtual Computing Utility Ionut Constandache, Aydan Yumerefendi and Jeff Chase. In Virtual Machine Security Workshop (VMSec 2008) in conjunction with ACM CCS 2008, Alexandria, Virginia, USA, to appear in October 2008.


• Energy Aware Localization Using Mobile Phones Ionut Constandanche, Matt Sayler, Shravan Gaonkar, Romit Roy Choudhury and Landon Cox. Poster in ACM MobiSys (MobiSys 2008), Breckenridge, Colorado, USA, June 2008.


• Policy-driven Negotiation for Authorization in the Grid Ionut Constandache, Daniel Olmedilla, and Frank Siebenlist. In IEEE Workshop on Policies for Distributed Systems and Networks (POLICY 2007), pages 211-220, Bologna, Italy, June 2007.

Coursework