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MacOS

See instructions in README.md.

Windows

See instructions in README.md.

Linux

On Linux, Dangerzone uses Podman instead of Docker Desktop for creating an isolated environment. It will be installed automatically when installing Dangerzone.

Dangerzone is available for:

  • Ubuntu 23.04 (lunar)
  • Ubuntu 22.04 (jammy)
  • Ubuntu 20.04 (focal)
  • Debian 13 (trixie)
  • Debian 12 (bookworm)
  • Debian 11 (bullseye)
  • Fedora 38
  • Fedora 37
  • Fedora 36
  • Qubes OS (beta support)

Ubuntu, Debian

📝 Expand this section if you are on Ubuntu 20.04 (Focal).

Dangerzone requires Podman, which is not available through the official Ubuntu Focal repos. To proceed with the Dangerzone installation, you need to add an extra OpenSUSE repo that provides Podman to Ubuntu Focal users. You can follow the instructions below, which have been copied from the official Podman blog:

sudo apt-get install curl wget gnupg2 -y
source /etc/os-release
sudo sh -c "echo 'deb http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/ /' \
  > /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list"
wget -nv https://download.opensuse.org/repositories/devel:kubic:libcontainers:stable/xUbuntu_${VERSION_ID}/Release.key -O- \
  | sudo apt-key add -
sudo apt update

Also, you need to install the python-all package, due to an stdeb bug that existed before v0.9.1:

sudo apt-get install python-all -y

Add our repository following these instructions:

Download the GPG key for the repo:

gpg --keyserver hkps://keys.openpgp.org \
    --no-default-keyring --keyring ./fpf-apt-tools-archive-keyring.gpg \
    --recv-keys "DE28 AB24 1FA4 8260 FAC9 B8BA A7C9 B385 2260 4281"
sudo mkdir -p /etc/apt/keyrings/
sudo mv fpf-apt-tools-archive-keyring.gpg /etc/apt/keyrings

Add the URL of the repo in your APT sources:

source /etc/os-release
echo deb [signed-by=/etc/apt/keyrings/fpf-apt-tools-archive-keyring.gpg] \
    https://packages.freedom.press/apt-tools-prod ${VERSION_CODENAME?} main \
    | sudo tee /etc/apt/sources.list.d/fpf-apt-tools.list

Install Dangerzone:

sudo apt update
sudo apt install -y dangerzone
📝 Expand this section for a security notice on third-party Debian repos

This section follows the official instructions on configuring third-party Debian repos.

To mitigate a class of attacks against our APT repo (e.g., injecting packages signed with an attacker key), we add an additional step in our instructions to verify the downloaded GPG key against its fingerprint.

Aside from these protections, the user needs to be aware that Debian packages run as root during the installation phase, so they need to place some trust on our signed Debian packages. This holds for any third-party Debian repo.

Fedora

Type the following commands in a terminal:

sudo dnf config-manager --add-repo=https://packages.freedom.press/yum-tools-prod/dangerzone/dangerzone.repo
sudo dnf install dangerzone
Verifying Dangerzone GPG key
Importing GPG key 0x22604281: ... Is this ok [y/N]:

After some minutes of running the above command (depending on your internet speed) you'll be asked to confirm the fingerprint of our signing key. This is to make sure that in the case our servers are compromised your computer stays safe. It should look like this:

--------------------------------------------------------------------------------
Total                                           389 kB/s | 732 MB     32:07
Dangerzone repository                           3.8 MB/s | 3.8 kB     00:00
Importing GPG key 0x22604281:
 Userid     : "Dangerzone Release Key <dangerzone-release-key@freedom.press>"
 Fingerprint: DE28 AB24 1FA4 8260 FAC9 B8BA A7C9 B385 2260 4281
 From       : /etc/pki/rpm-gpg/RPM-GPG-dangerzone.pub
Is this ok [y/N]:

Note: If it does not show this fingerprint confirmation or the fingerprint does not match, it is possible that our servers were compromised. Be distrustful and reach out to us.

The Fingerprint should be DE28 AB24 1FA4 8260 FAC9 B8BA A7C9 B385 2260 4281. For extra security, you should confirm it matches the one at the bottom of our website (dangerzone.rocks) and our Mastodon account bio.

After confirming that it matches, type y (for yes) and the installation should proceed.

Qubes OS

Warning

This section is for the beta version of native Qubes support. If you want to try out the stable Dangerzone version (which uses containers instead of virtual machines for isolation), please follow the Fedora or Debian instructions and adapt them as needed.

Important

This section will install Dangerzone in your default template (fedora-38 as of writing this). If you want to install it in a different one, make sure to replace fedora-38 with the template of your choice.

The following steps must be completed once. Make sure you run them in the specified qubes.

Overview of the qubes you'll create:

qube type purpose
dz-dvm app qube offline diposable template for performing conversions

In dom0:

Create a disposable, offline app qube (dz-dvm), based on your default template. This will be the qube where the documents will be sanitized:

qvm-create --class AppVM --label red --template fedora-38 \
    --prop netvm="" --prop template_for_dispvms=True \
    dz-dvm

Add an RPC policy (/etc/qubes/policy.d/50-dangerzone.policy) that will allow launching a disposable qube (dz-dvm) when Dangerzone converts a document, with the following contents:

dz.Convert         *       @anyvm       @dispvm:dz-dvm  allow

In the fedora-38 template

Install Dangerzone:

sudo dnf config-manager --add-repo=https://packages.freedom.press/yum-tools-prod/dangerzone/dangerzone.repo
sudo dnf install dangerzone-qubes

While Dangerzone gets installed, you will be prompted to accept a signing key. Expand the instructions in the Verifying Dangerzone GPG key section to verify the key.

Finally, shutdown the template and restart the qubes where you want to use Dangerzone in. Go to "Qube Settings" -> choose the "Applications" tab, click on "Refresh applications", and then move "Dangerzone" from the "Available" column to "Selected".

You can now launch Dangerzone from the list of applications for your qube, and pass it a file to sanitize.

Build from source

If you'd like to build from source, follow the build instructions.