---
name: hardware-security
description: "Authorized hardware and embedded interface security research: UART/JTAG discovery, debug-pad triage, secure-boot overview, and offline firmware analysis."
risk: offensive
source: "https://github.com/zhaoxuya520/reverse-skill"
source_repo: "zhaoxuya520/reverse-skill"
source_type: community
date_added: "2026-08-25"
license: "MIT"
license_source: "https://github.com/zhaoxuya520/reverse-skill/blob/main/LICENSE"
---
> **⚠️ AUTHORIZED USE ONLY**
> This skill is for educational purposes or authorized security assessments only.
> You must have explicit, written permission from the system owner before using this tool.
> Misuse of this tool is illegal and strictly prohibited.

> **Mandatory confirmation gate**
> Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:
> 1. Ask the user to state the exact target URL, IP, account, or resource.
> 2. Ask the user to confirm written authorization and the permitted scope.
> 3. Show the exact command(s) and explain their expected effect.
> 4. Wait for explicit confirmation in the current conversation.
>
> Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.

# Hardware / Embedded Interface Security
## When to Use

- Physical security review of a device you own or are authorized to test.
- Locating and documenting exposed debug interfaces.


## 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
□ 断电确认接线与电平；不要将 USB-TTL VCC 直接接到已供电目标，避免反向供电
□ USB-TTL 先仅连接 GND 与适配器 RX 读取目标 TX；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？

## Limitations

- Requires physical access and basic HW tooling (adapters, multimeter).
- Soldered or disabled debug ports raise the difficulty sharply.

> Adapted from [zhaoxuya520/reverse-skill](https://github.com/zhaoxuya520/reverse-skill) (MIT).


---
Source attribution: zhaoxuya520/reverse-skill contributors, via Agentic Awesome Skills
Original project: https://github.com/zhaoxuya520/reverse-skill
License: MIT + CC-BY-4.0
License information: https://creativecommons.org/licenses/by/4.0/
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 zhaoxuya520

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


# Mega AI Hub resource metadata

Creator / publisher: zhaoxuya520/reverse-skill contributors, via Agentic Awesome Skills
Original project: https://github.com/zhaoxuya520/reverse-skill
Attribution basis: Recorded upstream repository

Fields of work: Development & Engineering
Roles: Security Engineer, Embedded / IoT Developer
Specialties: Specialty not specified
Tools: Tool not specified
Country applicability: Country not specified
Classification basis: Dave AI task classification from package title, description, and declared metadata
Instruction SHA-256: 875aa9dde09cbdf33211dc036514c18f4b4acf68623ac74fcd7a202035238ffb
Metadata reviewed: 2026-10-27
This metadata supersedes earlier Mega AI Hub catalog attribution. Original instruction and supporting files are preserved.