Digital signatures can increase security but this requires knowledge. Learn more about digital software signature verification.

OpenPGP Signature[edit]

Qubes[edit]

Qubes-Whonix ™ templates are automatically verified when qubes-dom0-update downloads and installs them; manual user verification is unnecessary.

VirtualBox[edit]

Steps to verify the virtual machine images depend on the operating system in use:

Also see: VirtualBox Appliance is not signed Error Message.

KVM[edit]

Refer to the KVM Linux on the Command Line instructions.

Windows Installer[edit]

The Whonix ™ Windows Installer is currently unavailable. (Verify the Whonix ™ Windows Installer)

Signify Signatures[edit]

Advanced users only!

It is impossible to signify sign images (.ova / libvirt.tar.xz) directly. ^[archive] You can only verify the .sha512sums hash sum file using signify-openbsd and then verify the image against the sha512 sum.

1. Download the signify Key and save it as keyname.pub.

2. Install signify-openbsd.

Install signify-openbsd.

1. Update the package lists.

sudo apt update

sudo apt update

2. Upgrade the system.

sudo apt full-upgrade

sudo apt full-upgrade

3. Install the signify-openbsd package.

Using apt command line parameter --no-install-recommends is in most cases optional.

sudo apt install --no-install-recommends signify-openbsd

sudo apt install --no-install-recommends signify-openbsd

4. Done.

The procedure of installing signify-openbsd is complete.

3. Download the .sha512sums and .sha512sums.sig files.

4. Verify the .sha512sums file with signify-openbsd.

signify-openbsd -Vp keyname.pub -m Whonix-*.sha512sums

signify-openbsd -Vp keyname.pub -m Whonix-*.sha512sums

If the file is correct, it will output:

Signature Verified

Signature Verified

If the file is not correct, it will output an error.

5. Compare the hash of the image file with the hash in the .sha512sums file.

sha512sum -c Whonix-*.sha512sums

sha512sum -c Whonix-*.sha512sums

If the file is correct, it will output:

Whonix-CLI-16.0.3.7.ova: OK

Whonix-CLI-16.0.3.7.ova: OK

Do not continue if verification fails! This risks using infected or erroneous files! The whole point of verification is to confirm file integrity. This page is strongly related to the pages Placing Trust in Whonix ™ and Verifying Software Signatures.

If you are using signify for software signature verification, please consider making a report in the signify-openbsd forum thread ^[archive]. This will help developers decide whether to continue supporting this method or deprecate it.

Table: Whonix ™ VirtualBox Files

Whonix ™ Version	Files
Whonix ™ VirtualBox CLI	https://download.whonix.org/ova/16.0.3.7/Whonix-CLI-16.0.3.7.ova ^[archive] https://download.whonix.org/ova/16.0.3.7/Whonix-CLI-16.0.3.7.sha512sums ^[archive] https://download.whonix.org/ova/16.0.3.7/Whonix-CLI-16.0.3.7.sha512sums.sig ^[archive]
Whonix ™ VirtualBox XFCE	https://download.whonix.org/ova/16.0.3.7/Whonix-XFCE-16.0.3.7.ova ^[archive] https://download.whonix.org/ova/16.0.3.7/Whonix-XFCE-16.0.3.7.sha512sums ^[archive] https://download.whonix.org/ova/16.0.3.7/Whonix-XFCE-16.0.3.7.sha512sums.sig ^[archive]

Forum discussion: signify-openbsd ^[archive].

Codecrypt Signatures[edit]

Codecrypt signatures are not yet available, but are planned long term.

Volunteer contributions are happily considered! If you were to contribute codecrypt signature creation to the Whonix ™ prepare_release script ^[archive], then this feature could be provided much sooner.

If you would like to use codecrypt for software signature verification, please consider making a report in the codecrypt forum thread ^[archive]. This method might be supported sooner if there is sufficient interest.

Forum discussion:
use codecrypt to sign releases ^[archive].