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    RDS: FPGA Routing Delay Sensors for Effective Remote Power Analysis Attacks
    (Universitatsbibliothek der Ruhr-Universitat Bochum, 2023-03-06) ;
    Glamočanin, Ognjen
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    Stojilović, Mirjana
    State-of-the-art sensors for measuring FPGA voltage fluctuations are timeto-digital converters (TDCs). They allow detecting voltage fluctuations in the order of a few nanoseconds. The key building component of a TDC is a delay line, typically implemented as a chain of fast carry propagation multiplexers. In FPGAs, the fast carry chains are constrained to dedicated logic and routing, and need to be routed strictly vertically. In this work, we present an alternative approach to designing on-chip voltage sensors, in which the FPGA routing resources replace the carry logic. We present three variants of what we name a routing delay sensor (RDS): one vertically constrained, one horizontally constrained, and one free of any constraints. We perform a thorough experimental evaluation on both the Sakura-X side-channel evaluation board and the Alveo U200 datacenter card, to evaluate the performance of the RDS sensors in the context of a remote power side-channel analysis attack. The results show that our best RDS implementation in most cases outperforms the TDC. On average, for breaking the full 128-bit key of an AES-128 cryptographic core, an adversary requires 35% fewer side-channel traces when using the RDS than when using the TDC. Besides making the attack more effective, given the absence of the placement and routing constraint, the RDS sensor is also easier to deploy.
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    Steven W. Floyd: His legacy as a scholar and academic community builder
    (SAGE Publications, 2025-02-17)
    Julia Balogun
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    Linda Rouleau
    ;
    Bill Wooldridge
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    Coopetition in Ecosystems
    (2025)
    Maric, D.
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    Cenmano, C.
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    Can GenAI do your next strategy task? Not yet.
    (2025) ;
    Lang N.
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    Bouffault, O.
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    Cooper, J.
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    SpeculAR: An In-the-wild Exploration of Users’ Perceptions of a Social Augmented Reality
    (ACM, 2025-04)
    Mihael Gajic
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    Flurin Selm
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    While head-mounted augmented reality (AR) glasses are becoming increasingly reliable and relevant for public scenarios, little is known about users’ preferences and perceptions when experiencing AR in social spaces. In this late-breaking work, we investigate users’ perceptions of augmented social environments tailored to their shared interests. Through interviews with 64 participants, we first identified 12 key usage scenarios, which informed the development of SpeculAR, a prototype for an augmented social reality. We then conducted an in-the-wild study with 18 participants to assess their experiences with SpeculAR. Our findings reveal that shared AR scenarios are generally perceived positively and can be seamlessly integrated into real-world environments to augment and further enhance real-world spaces. Our exploration of augmented social spaces highlights important considerations and lays the groundwork for future studies and the realizations of augmented reality applications in everyday lives.
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