> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/on-premises/fr/configuration/overleaf-toolkit/password-restrictions.md).

# Restrictions de mot de passe

Il est possible d’appliquer des restrictions de mot de passe aux comptes utilisateurs lors de l’utilisation du système de connexion natif d’Overleaf pour l’authentification.

{% hint style="info" %}
Il est **ne pas** possible d’appliquer des restrictions de mot de passe pour les connexions SSO (LDAP/SAML 2.0). Celles-ci doivent être configurées dans votre fournisseur d’identité (IdP).
{% endhint %}

Pour activer les restrictions de mot de passe, définissez les variables d’environnement pertinentes dans les Toolkits `config/variables.env` dans le fichier.

| Nom                                       | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Par défaut |
| ----------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------: |
| `OVERLEAF_PASSWORD_VALIDATION_MIN_LENGTH` | Le **longueur** minimale requise.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |        `8` |
| `OVERLEAF_PASSWORD_VALIDATION_MAX_LENGTH` | Le **longueur** maximale autorisée.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |       `72` |
| `OVERLEAF_PASSWORD_VALIDATION_PATTERN`    | <p></p><p>Utilisé pour valider la <strong>force du mot de passe</strong>:</p><ul><li><code>abc123</code> – le mot de passe nécessite 3 lettres et 3 chiffres et doit comporter au moins 6 caractères</li><li><code>aA</code> – le mot de passe nécessite des lettres minuscules et majuscules et doit comporter 2 caractères</li><li><code>ab$3</code> – il doit contenir des lettres, des chiffres et des symboles, et comporter 4 caractères</li><li>Il existe 4 groupes de caractères : lettres, lettres MAJUSCULES, chiffres, symboles. Tout ce qui n’est ni lettre ni chiffre est considéré comme un symbole.</li></ul> |          — |


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