> For the complete documentation index, see [llms.txt](https://docs.ngsurvey.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ngsurvey.com/de/data-encryption/file-upload-encryption.md).

# Verschlüsselung von Datei-Uploads

Mit Dateiverschlüsselung können Sie Verschlüsselung auf alle Dateien anwenden, die über Ihre Umfrage mithilfe des [file upload answer](/de/form-management/form-designer/questions/question-types/advanced-types/file-upload.md) Typs hochgeladen werden. 

Wenn Sie sehr vertrauliche Dateien vom Befragten erwarten, empfehlen wir, den Datentyp der file upload answer auf [eingeschränkten](/de/data-encryption/data-classification/restricted.md) für maximale Sicherheit einzustellen. Auf diese Weise verschlüsselt ngSurvey die gesamte Datei mit Ihrem öffentlichen PGP-Schlüssel und nur Sie können die Datei mit Ihrem privaten PGP-Schlüssel und Ihrer Passphrase entschlüsseln.

{% hint style="info" %}
Mit dem [Abschluss-Alert](/de/form-management/tasks/task-items/completion-alert.md) Sie können den verschlüsselten Anhang direkt in Ihrer E-Mail erhalten. 
{% endhint %}


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.ngsurvey.com/de/data-encryption/file-upload-encryption.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.