Tootfinder

Developed and quasi-developed macro-scale heat transfer in micro- and mini-channels with arrays of offset strip fins subject to a uniform heat flux
Arthur Vangeffelen, Geert Buckinx, Carlo De Servi, Maria Rosaria Vetrano, Martine Baelmans
https://arxiv.org/abs/2404.17450

Developed and quasi-developed macro-scale heat transfer in micro- and mini-channels with arrays of offset strip fins subject to a uniform heat flux
In the present work, we examine to what degree the heat transfer can be described as developed on a macro-scale level in typical micro- and mini-channels with offset strip fin arrays subject to a uniform heat flux, considering flow entrance and side-wall effects. Full-scale numerical heat transfer simulations are conducted to determine the extent of the developed macro-scale heat transfer region within the arrays. We find that the onset point of developed heat transfer increases linearly with t…

I'm starting to go through my dad's hifi kit, and this is one of his FM radios; the real challenge is how to get into the damn thing; the top panel seems to be slotted into channels, and the only thing that comes off easily is the side panel hmm which doesn't help.
It does seem to work mostly OK; but I'd like to figure out the two unmarked toggles and LEDs, and an unmarked pot on the back.

Exploiting the NT Kernel in 24H2: New Bugs in Old Code & Side Channels Against KASLR https://exploits.forsale/24h2-nt-exploit/

Improving the Spatial Correlation Characteristics of Antenna Arrays using Linear Operators and Wide-band Modelling
Marc Miranda, Sebastian Semper, Michael D\"obereiner, Reiner Thom\"a
https://arxiv.org/abs/2403.17654

Improving the Spatial Correlation Characteristics of Antenna Arrays using Linear Operators and Wide-band Modelling
The analysis of wireless communication channels at the mmWave, sub-THz and THz bands gives rise to difficulties in the construction of antenna arrays due to the small maximum inter-element spacing constraints at these frequencies. Arrays with uniform spacing greater than half the wavelength for a certain carrier frequency exhibit aliasing side-lobes in the angular domain, prohibiting non-ambiguous estimates of a propagating wave-front's angle of arrival. In this paper, we present how wide-ban…

This https://arxiv.org/abs/2404.11284 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

Amplifying Main Memory-Based Timing Covert and Side Channels using Processing-in-Memory Operations
The adoption of processing-in-memory (PiM) architectures has been gaining momentum because they provide high performance and low energy consumption by alleviating the data movement bottleneck. Yet, the security of such architectures has not been thoroughly explored. The adoption of PiM solutions provides a new way to directly access main memory, which can be potentially exploited by malicious user applications. We show that this new way to access main memory opens opportunities for high-through…

This https://arxiv.org/abs/2311.02405 has been replaced.
link: https://scholar.google.com/scholar?q=a

SplitMAC: Wireless Split Learning over Multiple Access Channels
This paper presents a novel split learning (SL) framework, referred to as SplitMAC, which reduces the latency of SL by leveraging simultaneous uplink transmission over multiple access channels. The key strategy is to divide devices into multiple groups and allow the devices within the same group to simultaneously transmit their smashed data and device-side models over the multiple access channels. The optimization problem of device grouping to minimize SL latency is formulated, and the benefit …

Public EV charging - and some of the challenges:
I think the big charger in the photo is problematic: it's clunky, noisy and expensive - it's a fast charger for on-the-go charging, whereas residents need lower power, flexible and affordable charging. Kerb-side charging is fine for individuals - less so for communities. The example of Derby, where residents are given vouchers for an electric car club to reduce the number of cars on the road, is great.

Charging an electric car with no driveway
Finding charging solutions for electric cars drivers is a challenge on terraced streets. Now councils are offering to dig channels across pavement and installing more residential chargers.

Information Leakage through Physical Layer Supply Voltage Coupling Vulnerability
Sahan Sanjaya, Aruna Jayasena, Prabhat Mishra
https://arxiv.org/abs/2403.08132

Information Leakage through Physical Layer Supply Voltage Coupling Vulnerability
Side-channel attacks exploit variations in non-functional behaviors to expose sensitive information across security boundaries. Existing methods leverage side-channels based on power consumption, electromagnetic radiation, silicon substrate coupling, and channels created by malicious implants. Power-based side-channel attacks are widely known for extracting information from data processed within a device while assuming that an attacker has physical access or the ability to modify the device. In…

Hackers can steal cryptographic keys by video-recording power LEDs 60 feet away https://arstechnica.com/information-technology/2023/06/hackers-can-steal-cryptographic-keys-by-video-recordin…

Hackers can steal cryptographic keys by video-recording power LEDs 60 feet away
Key-leaking side channels are a fact of life. Now they can be done by video-recording power LEDs.

This https://arxiv.org/abs/2308.12374 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csIT_…

Private Information Retrieval with Private Noisy Side Information
Consider Private Information Retrieval (PIR), where a client wants to retrieve one file out of $K$ files that are replicated in $N$ different servers and the client selection must remain private when up to $T$ servers may collude. Additionally, suppose that the client has noisy side information about each of the $K$ files, and the side information about a specific file is obtained by passing this file through one of $D$ possible discrete memoryless test channels, where $D\le K$. While the stati…

This https://arxiv.org/abs/2306.14882 has been replaced.
link: https://scholar.google.com/scholar?q=a

Citadel: Enclaves with Microarchitectural Isolation and Secure Shared Memory on a Speculative Out-of-Order Processor
Enclaves or Trusted Execution Environments are trusted-hardware primitives that make it possible to isolate and protect a sensitive program from an untrusted operating system. Unfortunately, almost all existing enclave platforms are vulnerable to microarchitectural side channels and transient execution attacks, and the one academic proposal that is not does not allow programs to interact with the outside world. We present Citadel, to our knowledge, the first enclave platform with microarchitect…

This https://arxiv.org/abs/2308.07757 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

A Scalable Formal Verification Methodology for Data-Oblivious Hardware
The importance of preventing microarchitectural timing side channels in security-critical applications has surged in recent years. Constant-time programming has emerged as a best-practice technique for preventing the leakage of secret information through timing. It is based on the assumption that the timing of certain basic machine instructions is independent of their respective input data. However, whether or not an instruction satisfies this data-independent timing criterion varies between in…