Skills Engineering Hardware Embedded Interface Security Analysis

Hardware Embedded Interface Security Analysis

v20260903
hardware-security
This guide outlines the methodology for conducting hardware security research on embedded systems. It covers physical interface analysis (UART, JTAG, SWD), debug pad triage, secure boot evaluation, and offline firmware extraction. It emphasizes systematic, non-destructive testing protocols and responsible handling of physical devices.
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Overview

Hardware / Embedded Interface Security

ACTION REQUIRED(读完后立刻执行)

  1. NOW: 确认物理接触授权与设备归属
  2. NOW: ESD/电源安全;默认只读探测
  3. NEXT: 联合 firmware-pentest 做镜像分析
  4. ACT: 外壳与调试接口识别 → consoles → 提取

适用场景

  • UART / JTAG / SWD 调试口发现
  • 启动日志、root shell、引导打断
  • 配合拆机提取 Flash
  • 安全启动/加密 Flash 的可行性评估(非破坏性优先)

工作流

□ 拆解授权设备;拍照标注测试点
□ 万用表找 GND/VCC/TX/RX;逻辑电平 1.8/3.3/5V
□ USB-TTL 只读日志;记录波特率
□ JTAG:枚举 IDCODE;评估是否锁定
□ 提取镜像 → 交接 firmware-pentest / ghidra

工具链

工具 用途
USB-TTL / logic analyzer UART
J-Link / CMSIS-DAP 调试
bus pirate / flipper(实验室) 多协议
binwalk / flashrom 提取

参考

  • references/debug-interface-triage.md
  • ../firmware-pentest/ ../ot-ics/

路由上下文

上游: MASTER R34
MUST NOT: 未授权拆机/损坏他人设备

任务完成自检

  • 是否记录接口电平与引脚图?
  • 镜像是否哈希保全?
  • Checklist?
Info
Category Engineering
Name hardware-security
Version v20260903
Size 1.58KB
Updated At 2026-09-06
Language