Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 29th June 2025, 01:43:04am CEST
Physical Layer Security against Compromising Electromagnetic Emanations (Part 1)
Time:
Monday, 01/Sept/2025:
2:20pm - 3:50pm
Location:Room 107
75 seats, Tower 44, 1st floor
Session Abstract
In recent years, security measures for information systems have advanced rapidly at the application and network layers. However, the security of the underlying physical layer is equally critical. A breach at this level can fundamentally undermine the entire system’s defenses. Of particular concern are electromagnetic (EM) attacks, which can inflict severe damage while leaving little or no trace.
This tutorial session will focus on the degradation of security at the physical layer due to electromagnetic emissions. It will provide attendees with insights into these threats and effective mitigation strategies. We will primarily examine passive attacks that intercept unintentional electromagnetic emissions from electronic devices to extract confidential data—such as encryption keys—and address other emerging threats that have recently gained attention. Given the serious risks these attack vectors pose to critical infrastructure and sensitive information, the session will also discuss the urgency of defending against physical attacks in an increasingly AI-driven, information-centric society, on par with conventional cyber attacks.
The session will offer a comprehensive overview of various electromagnetic attack methods, case studies, mitigation techniques, and their impact on diverse electronic devices. Furthermore, we will explore new challenges and vulnerabilities in electromagnetic security. By fostering an environment of knowledge exchange among researchers, engineers, and security experts, our goal is to stimulate discussions on future research directions and contribute to the development of a secure and reliable electromagnetic environment.
Presentations
2:20pm - 2:30pm
Introduction to Physical Layer Security against Compromising Electromagnetic Emanations
Yuichi Hayashi
Nara Institute of Science and Technology, Japan
With the rising stakes of information security, securing the physical layer is as critical as protecting the application and network layers. Cheaper instruments, faster processors, and larger storage have turned once-impractical electromagnetic attacks into threats that reach beyond military and diplomatic spheres to everyday devices. This talk introduces electromagnetic information security and provides an overview of each topic.
2:30pm - 3:10pm
Dealing with TEMPEST threat in its entirety - beyond video emanations in electric field
Emmanuel Cottais
SGDSN/ANSSI
TEMPEST threat is often presented as a video rasterization realized 10cm away from a screen emitting electric radiation. During this presentation, we propose a global approach of this threat, including conducted leaks, from a governmental point of view. Some demos will also be conducted.
3:10pm - 3:50pm
Eavesdropping on DisplayPort: challenges and opportunities
Dimitrije Erdeljan, Markus G. Kuhn
Univerity of Cambridge
DisplayPort cables have long resisted eavesdropping attempts. Their complex line encoding, involving padding and scrambling, means that AM demodulation only results in noise. Frame-periodic averaging is not applicable either. We show how we nevertheless were able to reconstruct high-quality images, not just pixel-accurate readable text but even grayscale photographs.
