> 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

{% hint style="info" %}
La stéganographie est la technique qui consiste à cacher des informations sensibles dans des médias de couverture apparemment anodins, qui n’éveilleront pas les soupçons même si elles sont bien visibles : seul un destinataire légitime saura qu’il y a là des informations qui lui sont destinées.
{% endhint %}

### **Analyse de stéganographie avec Steghide**

Nous enregistrons l'image et l'analysons :

1. Vérification de la présence de données cachées dans l'image :

<figure><img src="/files/9b983c398b30847b55a7901b681eff74b5deef7b" alt=""><figcaption></figcaption></figure>

Vérification de la présence de données cachées dans l'image :

```bash
steghide info image.jpg
```

<figure><img src="/files/07b9c6e6f4bd90dc9e757bfc25852171c47ac661" alt="" width="563"><figcaption></figcaption></figure>

Extraction des données cachées :

```bash
steghide extract -sf image.jpg
```

<figure><img src="/files/f15e36f1952445ec2aab8305e72f51a25f239c28" alt="" width="563"><figcaption></figcaption></figure>


---

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