> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/rdm/fr/knowledge-base/troubleshooting-articles/forticlient/fips-encryption.md).

# FIPS (chiffrement)

Corrigez l'erreur relative aux algorithmes cryptographiques validés FIPS dans Remote Desktop Manager en ajustant la stratégie de sécurité locale ou le fichier exe.config.

`System.invalidoperationexception: this implementation is not part of the windows platform FIPS validated cryptographic algorithms.`

Le problème pourrait être lié à l'activation du mode FIPS.

Remote Desktop Manager utilise les algorithmes de chiffrement AES/Rijndael et de hachage SHA-256, qui sont implémentés par Microsoft .NET Framework. Si la stratégie de sécurité locale de votre système impose des implémentations conformes à FIPS, Remote Desktop Manager ne peut pas fonctionner. Par conséquent, vous recevrez ce message d'erreur.

### Solution 1

Pour corriger cette erreur, configurez la stratégie de sécurité locale de votre système afin de permettre les implémentations d'algorithmes non conformes à FIPS.

Voici les étapes :

1. Allez dans ***Panneau de configuration – Outils d'administration – Stratégie de sécurité locale – Ouvrir Stratégies locales – Options de sécurité***.
2. Désactivez l'option ***Chiffrement système : utiliser des algorithmes compatibles FIPS pour le chiffrement, le hachage et la signature***.

Certains logiciels (p. ex., Cisco VPN Anyconnect) exigent l'utilisation de FIPS. Si c'est votre cas, vous devez implémenter la solution alternative décrite ci-dessous.

### Solution 2

Dans le dossier d'installation de Remote Desktop Manager, créez un fichier texte nommé **RemoteDesktopManager.exe.config** contenant ce qui suit :

```
<configuration>
    <runtime>
        <enforceFIPSPolicy enabled="false"/>
    </runtime>
</configuration>
```


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