> 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/hacking-wifi/wpa-wpa2-psk-network-attacks/precomputed-attacks/creating-a-rainbow-table-with-genpmk.md).

# Création d’une table arc-en-ciel avec GenPMK

Générer une base de données de clés WPA/WPA2 précomputées avec GenPMK.

GenPMK crée une base de données PMK pré-calculée à partir d’une liste de mots de passe et d’un nom de réseau.

Chaque mot de passe génère une clé pour un ESSID spécifique. Générer ces valeurs à l’avance accélère les recherches ultérieures.

### Consultez l’outil

{% code overflow="wrap" %}

```bash
genpmk
```

{% endcode %}

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2FGLyF9N0D0HbJ4SHUqJDw%2Fimage.png?alt=media&amp;token=e0bbbc87-fac7-468c-932b-7507ac5e1f6f" alt=""><figcaption></figcaption></figure>

### Générer la base de données

Utilisez la liste de mots de passe et l’ESSID pour créer la `dic.genpmk` base de données :

{% code overflow="wrap" %}

```bash
genpmk -f passwords.txt -s jordan -d dic.genpmk
```

{% endcode %}

Les paramètres sont :

* `-f passwords.txt` importe les mots de passe candidats.
* `-s jordan` définit le nom du réseau cible.
* `-d dic.genpmk` définit la base de données de sortie.

La base de données générée peut être réutilisée pour le même ESSID. Elle évite de recalculer les mêmes clés.

<figure><img src="https://3840167291-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2FVKJwz8Qi2YvSm6Kev7Eb%2Fimage.png?alt=media&amp;token=37150629-8374-4be8-bbbc-d469c29633aa" alt=""><figcaption></figcaption></figure>


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