# Hardware Security

> Guides authorized hardware and embedded interface security research including UART/JTAG discovery, debug pad triage, secure boot assessment, and offline firmware extraction support.

- Skill: `zhaoxuya520/hardware-security` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add zhaoxuya520/hardware-security`
- Raw SKILL.md: https://api.skillmd.com/api/skills/zhaoxuya520/hardware-security/raw
- Safety review: CAUTION (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security, Penetration Testing, Secure Coding, Vulnerability Scanning
- Tags: Embedded Security, Firmware Extraction, Flashrom, Hardware Debugging, Jtag, Secure Boot, Swd, Uart
- Author: zhaoxuya520 (https://skillmd.com/u/zhaoxuya520)
- Updated: 2026-08-22
- Page: https://skillmd.com/skills/zhaoxuya520/hardware-security

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# 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

```text
□ 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？