Chen ChenPhD Candidate
Department of Computer Science
Stony Brook University
Stony Brook, NY - 11790
I am currently a PhD student at Stonybrook University, New York working at the Network Security and Applied Cryptography(NSAC) lab under the guidance of Prof. Radu Sion. I worked on system security, data privacy, embedded storage system and clouds.
|CSE532||Theory of Database Systems||Fall 2012|
|CSE548||Analysis of Algorithms||Fall 2012|
|CSE527||Intro to Computer Vision||Fall 2012|
|CSE534||Fundamental of Computer Networks||Spring 2013|
|CSE502||Computer Architecture||Spring 2013|
|CSE547||Discrete Mathematics||Spring 2013|
INFUSE is a plausible deniability system for raw NAND flash devices. It hides sensitive data in flash devices by “embedding” logical data using variations in threshold voltage. The hidden data stored in the device and the deployment of INFUSE can be both “invisible” to adversaries.
Datalair is a practical plausible deniability system built based on a new write-only ORAM. It reduces the complexity of the state of the art existing write-only ORAM by a factor of O(logN). When compared with existing approaches, DataLair is two orders of magnitude faster (and as efficient as the underlying raw storage) for public data accesses, and 2-5 times faster for hidden data accesses.
PD-DM is a new efficient device mapper with strong plausible deniability against multi-snapshot adversaries. It preserves locality and increases performance by ensuring most of its underlying writes are sequential. In a typical setup, throughputs are one order of magnitude (10-100x) faster than existing approaches.
This project aims to detect the existence and location of specific instances of target data structure types in a VM by observing memory accesses and training for targetspecific timing-based signatures. We deploy the detection mechanisms to defeat kernel rootkits that "hide" their associated processes from existing snapshot-based detection methods. We introduce multiple signature variants and evaluate them for different kernel versions.
Smartphone Datacenter looks insight into the power-performance tradeoff at scale for ARM and x86 architectures by quantifying the cost/performance ratio precisely enough to allow for a broader conclusion about the feasibility of deploying an ARM datacenter in next few years.
Green DIMM is a system that aims at energy efficient memory management in OS.
HIFS for flash is a file system designed for flash storage devices with a good balance between the history independent security and device life time.