Shreyas of Purdue University

Computationally secure cryptographic algorithms, when implemented on physical hardware, leak correlated physical signatures (e.g. power supply current, electromagnetic radiation, acoustic, thermal) which could be utilized to break the crypto engine. Physical-layer countermeasures, guided by understanding of the physical leakage, including circuit-level and layout-level countermeasures promise strong resilience by reducing the physical leakage at the source of the leakage itself. The past decade has seen significant advancements in circuit-level countermeasures, advancing resilience to side-channel attacks. In this talk, we will cover the fundamentals of the leakages and how each countermeasure increases resilience, by diving into the working mechanism of each and comparing the pros and cons of these techniques. The talk concludes by highlighting the open problems and future needs of this field.

Biography:

Shreyas Sen is an Elmore Associate Professor of ECE & BME, Purdue University. His current research interests span mixed signal circuits/systems and electromagnetics for the Internet of Bodies (IoB) and Hardware Security. He has authored/co authored 3 book chapters, over 200 journal and conference papers and has 25 patents granted/pending. Dr. Sen serves as the Director of the Center for Internet of Bodies (C-IoB) at Purdue. Dr. Sen is the inventor of the Electro-Quasistatic Human Body Communication (EQS-HBC), or Body as a Wire 
technology, for which, he is the recipient of the MIT Technology Review top-10 Indian Inventor Worldwide under 35 (MIT TR35 India) Award in 2018 and Georgia Tech 40 Under 40 Award in 2022. To commercialize this invention Dr. Sen founded Ixana and serves as the Chairman and CTO and led Ixana to awards such as 2x CES Innovation Award 2024, EE Times Silicon 100, Indiana Startup of the Year Mira Award 2023, among others. His work has been covered by 250+ news releases worldwide, invited appearance on TEDx Indianapolis, NASDAQ live Trade Talks at CES 2023, Indian National Television CNBC TV18 Young Turks Program, NPR subsidiary Lakeshore Public Radio and the CyberWire podcast. Dr. Sen is a recipient of the NSF CAREER Award 2020, AFOSR Young Investigator Award 2016, NSF CISE CRII Award 2017, Intel Outstanding Researcher Award 2020, Google Faculty Research Award 2017, Purdue CoE Early Career Research Award 2021, Intel Labs Quality Award 2012 for industrywide impact on USB-C type, Intel Ph.D. Fellowship 2010, IEEE Microwave Fellowship 2008, GSRC Margarida Jacome Best Research Award 2007, and nine best paper awards including IEEE CICC 2019, 2021 and in IEEE HOST 2017-2020, for four consecutive years. Dr. Sen's work was chosen as one of the top-10 papers in the Hardware Security field (TopPicks 2019). He serves/has served as an Associate Editor for IEEE Solid-State Circuits Letters (SSC-L), Nature Scientific Reports, Frontiers in Electronics, IEEE Design & Test, Executive Committee member of IEEE 
Central Indiana Section and Technical Program Committee member of TPC member of ISSCC, CICC, DAC, CCS, IMS, DATE, ISLPED, ICCAD, ITC, and VLSI Design. Dr. Sen is a Senior Member of IEEE. 

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