Dev/Get Whonix Source Code

Get the Signing Key

This chapter is recommended for better security, but is not strictly required. (See Trust)

Download the key.

curl --tlsv1 --proto =https -o patrick.asc https://www.whonix.org/patrick.asc

Check fingerprints/owners without importing anything.

gpg --with-fingerprint patrick.asc

Verify it shows the following.

pub  4096R/2EEACCDA 2014-01-16 Patrick Schleizer <adrelanos@riseup.net>
      Key fingerprint = 916B 8D99 C38E AF5E 8ADC  7A2A 8D66 066A 2EEA CCDA
sub  4096R/CE998547 2014-01-16 [expires: 2016-10-05]
sub  4096R/119B3FD6 2014-01-16 [expires: 2016-10-05]
sub  4096R/77BB3C48 2014-01-16 [expires: 2016-10-05]

If it checks out, import the key.

gpg --import patrick.asc

It isn't safe to only get the signing key from one source for the download you want to verify. For better security, learn more about the Whonix Signing Key.

Get the Source Code

Install git and curl.

sudo apt-get install git curl

Get source code including git submodules (Whonix 13 / Jessie).

git clone --recursive https://github.com/Whonix/Whonix

Get source code including git submodules (Whonix 14 / Stretch).

git clone --jobs=200 --recursive https://github.com/Whonix/Whonix

Remember it is Whonix, not whonix! If prompted for a username for github, you have mistyped the web address.

Shift to the source folder.

cd Whonix

OpenPGP Verify the Source Code

This chapter is recommended for better security, but is not strictly required.

Retrieve a list of available git tags.

git tag

Verify the chosen tag to build.

## ... Replace with tag you want to build.
git verify-tag 13.0.0.1.4-stable

The output should look similar to this.

object 1844108109a5f2f8bddcf2257b9f3675be5cfb22
type commit
tag 13.0.0.1.4
tagger Patrick Schleizer <adrelanos@riseup.net> 1392320095 +0000

.
gpg: Signature made Thu 13 Feb 2014 07:34:55 PM UTC using RSA key ID 77BB3C48
gpg: Good signature from "Patrick Schleizer <adrelanos@riseup.net>" [ultimate]

The warning.

gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.

Is explained on the Whonix Signing Key page and can be safely ignored.

By convention, git tags should point to signed git commits. (forum discussion) It is advisable to verify the signature of the git commit as well (replace 13.0.0.1.4 with the actual git tag being verified).

git verify-commit 13.0.0.1.4-stable^{commit}

The output should look similar to this.

commit 5aa1c307c943be60e7d2bfa5727fa5ada3a79c4a
gpg: Signature made Sun 07 Dec 2014 01:22:22 AM UTC using RSA key ID 77BB3C48
gpg: Good signature from "Patrick Schleizer <adrelanos@riseup.net>" [ultimate]
Author: Patrick Schleizer <adrelanos@riseup.net>
Date:   Sun Dec 7 01:22:22 2014 +0000

    .

Choose Version

Use git checkout to select the preferred version (or git branch) to build.

In order to build a specific git tag.

git checkout 13.0.0.1.4-stable

Replace 13.0.0.1.4 with the actual version chosen for the build: the stable, testers-only or developers version. Common sense is required when choosing the right version number. For example, the latest available version number is not necessarily the most stable or suitable. To learn more about current Whonix versions, follow the Whonix News Blog.

Clean Up and Sanitize

This step is also important for security.

Retrieve the list of extraneous files and folders.

git clean -ndff

See if the output looks sane; it generally should, unless Whonix source code is modified by advanced users (who understand git better anyhow). If the output looks like the following, everything is fine.

Would remove packages/apparmor-profile-gwenview/
Would remove packages/kde-privacy/

Remove these folders.

git clean -dff

The output should show.

Removing packages/apparmor-profile-gwenview/
Removing packages/kde-privacy/

Be sure to check out the right commit for each git submodule.

git submodule update --init --recursive

Check there are no extraneous files. This is important for security.

git status

The output should show the following and nothing else.

# Not currently on any branch.
nothing to commit (working directory clean)

If the directory is not clean, the extra files should be removed first.

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