> 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/fr/useful-resources/forensics/steganography-steghide.md).
# Stéganographie - Steghide
Notes de stéganographie Steghide pour extraire des fichiers cachés d’images ou d’audio, tester des phrases secrètes et valider des données intégrées lors des CTF.
{% hint style="info" %}
La stéganographie est la technique qui consiste à cacher des informations sensibles dans des médias apparemment anodins, qui n’éveilleront pas les soupçons même si elles sont à la vue de tous : seul un destinataire légitime saura qu’il y a des informations pour lui.
{% endhint %}
### **Analyse de stéganographie avec Steghide**
Nous enregistrons l'image et l'analysons :
1. Vérification de la présence de données cachées dans l'image :
Vérification de la présence de données cachées dans l'image :
```bash
steghide info image.jpg
```
Extraction des données cachées :
```bash
steghide extract -sf image.jpg
```
---
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