Contribute anonymously to Git repositories over Tor.

tl;dr

yourname@yourbox:~$ . gitnonymous somename
somename⚔ yourname@yourbox:~$ git commit_

Setup

Before you start, you’ll probably want to:

• Set up an anonymous email account with some provider.
• Sign up to the Git hosting service you use with that anonymous email address.

To configure a new anonymous identity on your machine:

$ ./gitnonymous-setup KEYNAME

Where KEYNAME is some memorable string that you will use to identify your anonymous ID like baby-protector or elite-freedom-defender. You can create multiple anonymous identities.

Be aware that KEYNAME is stored in the SSH public key’s comment field so don’t make it personally identifiable.

Then you should edit the new file in ~/.gitnonymous-KEYNAME/config to set the email address and name of your anonymous identity:

export GIT_COMMITTER_NAME="Baby Protector"
export GIT_COMMITTER_EMAIL="protect-all-babies@anonymous-mail-provider.com"
export GIT_AUTHOR_NAME="Baby Protector"
export GIT_AUTHOR_EMAIL="protect-all-babies@anonymous-mail-provider.com"

Use

You can symlink the gitnonymous and gitnonymous-setup commands into your ~/bin folder or somewhere else on your PATH to execute them without typing the full path.

Each time you want make anonymous commits in the current shell:

$ . gitnonymous KEYNAME

After that when you commit and push you will do so with the anonymous identity you have created, over the tor network, using the new SSH key that was created.

This command:

• Spawns an ssh-agent that is limited to the current shell.
• Adds the anonymous SSH key to ssh-agent.
• Sets the GIT_COMMITTER and GIT_AUTHOR environment variables.
• Sets the GIT_SSH environment variable to point at a configured git-ssh-wrap script.
• Sets the GIT_PROXY_COMMAND environment variable to proxy network requests through tor.

Your prompt will be updated to reflect the configured environment:

KEYNAME⚔ yourname@yourbox:~$

To deactivate the gitnonymous environment run the same command again:

KEYNAME⚔ yourname@yourbox:~$ . gitnonymous KEYNAME
yourname@yourbox:~$ _

Or just exit the current shell.

Dependencies

• git
• tor (install tor package)
• nc (install netcat-openbsd package)
• ssh
• bash

Tested

• With git 1.9.1 on Xubuntu 14.04.

Patches welcome!