# 1. Installing GPG

To set up your Debian 12 system to download the Key9 SSH client software from the Key9 repository, you need to follow these steps. 

First, you should install "gpg" (GNU Privacy Guard), which is an open source version of PGP (Pretty Good Privacy). Key9 uses "gpg" to sign our Debian releases, ensuring that you receive signed, secure releases of our software. 

This will not only allow you to easily install the Key9 SSH software, but also keep your systems patched and up to date.

To install “gpg”,  as “root”,  execute the following commands:

`apt-get install gpg` <br>


---

# Agent Instructions: 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:

```
GET https://docs.k9.io/key9-identity/ssh/installation-and-setup/key9-ssh-for-debian-12-bookworm-howto/1.-installing-gpg.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.