> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ja/useful-resources/forensics/steganography-steghide.md).
# ステガノグラフィ - Steghide
画像や音声から隠しファイルを抽出し、パスフレーズをテストし、CTF 中に埋め込まれたデータを検証するための Steghide ステガノグラフィメモ。
{% hint style="info" %}
ステガノグラフィーは、一見無害なカバーメディアに機密情報を隠す技術であり、たとえ公然と存在していても疑いを招きません。正当な受信者だけが、そこに自分宛ての情報があることを知っています。
{% endhint %}
### **Steghideを使ったステガノグラフィー解析**
画像を保存して解析します：
1. 画像に隠しデータが含まれているか確認します：
画像に隠しデータが含まれているか確認します：
```bash
steghide info image.jpg
```
隠しデータの抽出：
```bash
steghide extract -sf image.jpg
```
---
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