Coy

/koi/ Adjective: reluctant to give details, esp. about something regarded as sensitive.

A utility for protecting shy data, Coy uses TrueCrypt to set up a vcs-ignored*, encrypted volume within your project project for storing sensitive information. This allows access to that sensitive material while you're developing or running your application but after you close it, the data is inaccessible**.

You probably don't want to store a whole project in there; usually the sensitive bits are just a few bytes of stuff, such as passwords, personally identifying information, etc. Accordingly, Coy's protected directories have a 2Mb capacity.

* Git, Mercurial and SVN (See Ignorance.)

** Encrypted with AES and a Whirlpool hash algorithm.

First, you'll need to install TrueCrypt 7.1a (or compile from source) and ensure its command-line utility is visible in your path:

$ which truecrypt

Now you can add this line to your application's Gemfile:

gem 'coy'

And then execute:

$ bundle

Or install it yourself as:

$ gem install coy

This would create a new protected directory called "secret":

$ coy create secret

This mounts the newly created TrueCrypt volume:

$ coy open secret

Now you can slip on in there:

$ cd secret/

And stash some top-secret tidbits that your program will need:

$ echo "---\n - :santas_little_helper: me" > hush-hush.yaml

And then, in your ruby code:

File.exists? './secret/hush-hush.yaml' #=> true

Once you're done developing or delivering toys and whatnot, you can close up shop:

$ cd ..
$ coy close secret

And at this point, the secret/ directory is inaccessible (unmounted).

Dir.exists? './secret/' #=> false

Now your secret identity is protected by AES encryption, a Whirlpool hash, your awesome password, and whatever other measures TrueCrypt uses. Dobermans, probably.

The create and open commands require a password. Coy will prompt you, and mask the input. On the other hand, if you're safe in the batcave, you can include the password as a command-line argument:

$ coy create secret --password l33tp@55w0rd
$ coy open secret -p l33tp@55w0rd

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Write tests!
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create new Pull Request