Research Projects

Post-Doctoral Fellow Claude Fachkha

Post-Doctoral Fellow Claude Fachkha

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(*source: provided by Claude Fachkha)

Assessing and Characterizing DDoS Amplification Attacks

This work proposes a novel approach to infer and characterize Internet-scale

amplification DDoS attacks by leveraging the darknet space. Complementary to the pioneer work on inferring Distributed Denial of Service (DDoS) activities using darknet, this work shows that we can extract DDoS activities without relying on backscattered analysis. The aim of this work is to extract cyber security intelligence related to Amplification DDoS activities such as detection period, attack duration, intensity, packet size, rate and geo-location in addition to various network-layer and flow-based insights. To achieve this task, the proposed approach exploits certain DDoS parameters to detect the attacks. We empirically evaluate the proposed approach using big data on our network infrastructure. Our analysis reveals that the approach was successful in inferring significant DNS amplification DDoS activities including the recent prominent attack that targeted one of the largest anti-spam organizations. Moreover, the analysis disclosed the mechanism of such amplification DDoS attacks. This work lead to a better understanding of the nature and scale of this threat and can generate inferences that could contribute in detecting, preventing, assessing, mitigating and even attributing of amplification DDoS activities.



Smart City Testbed

The concept of a “Smart City” is an emerging topic of research that is driven by the need to enhance the quality of life of the ever-growing number of inhabitants in urban areas.

As world urbanization continually grows and the world’s population is expected to increase significantly by 2050, smart cities offer an attractive solution that can contribute in economic growth, increased efficiency of energy and transportation systems and promote sustainable development.

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(*source: Pindrop Security website)

Post Doctoral Fellow Payas Gupta

Post Doctoral Fellow Payas Gupta

Pindrop Security

Since, telephony and the web are converging, Postdoctoral Fellow, Payas Gupta is exploring security issues in telephony security domain. He is also involved in many research projects related to human subjects and user authentication for smartphones. Some of the detection systems resulting from the research on Phoneypot have been integrated in commercial products distributed by Pindrop Security Inc., a spin-off of Georgia Tech that specializes in phone fraud detection, to protect enterprise call centers and phone users, and Nomorobo specializes in stopping robocalls.

>> Read more about Payas


(*source: VLSI-SoC: From Algorithms to Circuits and System-on-Chip Design)

Post Doctoral Fellow Subidh Ali

Post Doctoral Fellow Subidh Ali

Design for Secure Testability (DfST)

When a chip is manufactured, it is being tested for possible manufacture related faults and scan based DfT is the most widely used test infrastructure in an effort to enhance access, and thus, testability. However, for secure chips, this test infrastructure can be misused to leak secret information in the form of test response of the chip. State-of-the-art countermeasure block the data flow from functional mode of a chip to the test mode, thus, blocking any leakage through test response. Postdoctoral Fellow Subidh Ali is developing a new class of attacks, which only use the test mode of the chip, and have shown new vulnerabilities in the state-of-the-art countermeasures.  As a result he proposes new countermeasures that can protect against all the attacks that misuse the test infrastructure of a chip. Results of this research are published in top tier hardware security conference and journals.  An example of this is Subidh’s work won the best paper of the security track of VLSI-SOC 2013 and included as a chapter in Springer book VLSI-SoC: From Algorithms to Circuits and System-on-Chip Design.

>> Read more about Subidh

Additional Highlighted Research Projects
  • Securing Scalable Distributed Services, Mustaque Ahamad
  • Securing Future Applications, Mustaque Ahamad
  • Guarding the Next Internet Frontier: Countering Denial of Information, Mustaque Ahamad
  • A Secure Storage Service for Managing Personal Information, Mustaque Ahamad
  • The Package Query Paradigm, , Azza Abouzied
  • Query Learning, Azza Abouzied
  • Data Play, Azza Abouzied
  • Invisible Loading, Azza Abouzied
  • Codo: Fundraising with Conditional Donations, Jay Chen
  • Forgetful Data Stores: Harnessing forgetfulness for humanistic storage properties, Jay Chen
  • Verus: Adaptive congestion control for unpredictable cellular networks, Jay Chen 
  • Paper-based “ICTD:” Exploring paper-based workflows, Jay Chen
  • Web Latency in Developing Regions: Why is the web still so slow in Africa?, Jay Chen
  • Zubalati: The garbage problem and what can we do about it?, Jay Chen
  • Mean-Field Games for Marriage, Hamidou Tembine
  • Nonasymptotic Mean-Field Games, Hamidou Tembine
  • Energy-constrained Mean Field Games in Wireless Networks, Hamidou Tembine