2 citations · 3 across the 7 of their papers we have counts for
10 papers
Coordinated Electromagnetic Side-Channel Attacks for Voter--Ballot Linking: A Case Study of the Brazilian E-Polling System
Leandro Hyeda, Kleber V. Cardoso, Antonio Oliveira-Jr +1
In this work, we show how two adversaries (Eve and Mallory) can coordinate an electromagnetic side-channel attack to recon- struct the vote displayed on an e-voting machine (EVM) a…
Fast Frame Rate Estimation in Electromagnetic Side-Channel Attacks on Public Systems
Alyson Isaluski, Leonardo Teodoro, Kleber V. Cardoso +2
Frame refresh rate estimation is a fundamental step in identifying compromising harmonic frequencies in electromagnetic side-channel attacks. Methods based on discrete linear autoc…
Do Electromagnetic Side-Channel Attacks Threaten Electronic Polling Stations? Scenarios and Recommendations
Lucas Brito, Leonardo Teodoro, Pedro Tomaz +4
This paper investigates the threat to ballot secrecy in the Brazilian electronic voting machine (UEB) posed by electromagnetic side-channel attacks, also known as TEMPEST attacks.…
Computation-Limited Signals in Practice: A Throughput Anomaly in Software-Defined O-RAN PHY Layers
Gabriel Alessi Posonski, Saulo Queiroz, João P. Vilela +3
We formalize a performance anomaly in software-based wireless physical-layer (PHY) implementations, a key enabling technology for Open Radio Access Network (O-RAN) systems. For a f…
Pre-Characterization of Electromagnetic Side-Channel Leakage Using Publicly Available Information: A Case Study on E-Voting Interfaces
Leonardo Teodoro, Kemuel L. Vieira, Saulo Queiroz
In this work, we study the interface of the Brazilian e-Voting Machine (BVM) in the context of electromagnetic side-channel threats commonly referred to as TEMPEST attacks. In a TE…
Fast Computation of the Discrete Fourier Transform Rectangular Index Coefficients
Saulo Queiroz, João P. Vilela, Benjamin Koon Kei Ng +2
In~\cite{sic-magazine-2025}, the authors show that the square index coefficients (SICs) of the -point discrete Fourier transform (DFT) -- that is, the coefficients $X_{k\sqrt{N}…
Fast Compressed-Domain N-Point Discrete Fourier Transform: The "Twiddless" FFT Algorithm
Saulo Queiroz
In this work, we present the \emph{twiddless fast Fourier transform (TFFT)}, a novel algorithm for computing the -point discrete Fourier transform (DFT). The TFFT's divide strat…
Computational Complexity-Constrained Spectral Efficiency Analysis for 6G Waveforms
Saulo Queiroz, João P. Vilela, Benjamin Koon Kei Ng +2
In this work, we present a tutorial on how to account for the computational time complexity overhead of signal processing in the spectral efficiency (SE) analysis of wireless wavef…
Fast Computation of the Discrete Fourier Transform Square Index Coefficients
Saulo Queiroz, João P. Vilela, Edmundo Monteiro
The -point discrete Fourier transform (DFT) is a cornerstone for several signal processing applications. Many of these applications operate in real-time, making the computationa…
Computation-Limited Signals: A Channel Capacity Regime Constrained by Computational Complexity
Saulo Queiroz, João P. Vilela, Edmundo Monteiro
In this letter, we introduce the computational-limited (comp-limited) signals, a communication capacity regime in which the signal time computational complexity overhead is the key…