Exploiting Per-Core Leakage: Electromagnetic Side-Channel Monitoring of Multicore Architectures

2026-08-28

AI Summary

研究揭示了多核架构中的电磁泄漏机制，并首次展示了每核泄漏利用方法，提出了一种非侵入式的侧信道监测技术以解决多核系统安全分析不足的问题。

Abstract

Multicore processors are increasingly adopted in embedded systems to meet growing performance demands. However, physical side-channel analysis of multicore architectures remains underexplored, as obtaining usable leakage is inherently challenging. Consequently, side-channel security research on such systems has lagged far behind, leaving a critical security gap. To address this gap, we reveal the electromagnetic leakage mechanisms in multicore architectures and, for the first time, demonstrate per-core leakage exploitation, thereby enabling physical side-channel analysis for these systems. As a practical extension, we present a non-intrusive side-channel monitoring method that achieves per-core granularity. To validate its feasibility and practicality, we implement a prototype on a heterogeneous SoC platform with an RF front-end, and evaluate on a commercial off-the-shelf quad-core embedded system, the Raspberry Pi 4B with ARM Cortex-A72 cores.

Problem

• Multicore Architectures
• Physical Side-Channel Analysis
• Electromagnetic Leakage

Innovation

• Per-Core Leakage
• Electromagnetic Side-Channel
• Multicore Architectures