lucifer

Lucifer is Rails plugin which utilizes the ezcrypto gem to encrypt/decrypt database columns transparently.

Why is it called Lucifer? en.wikipedia.org/wiki/Lucifer_(cipher)

Installation

./script/plugin install git://github.com/jmckible/lucifer.git

Lucifer looks for a key and salt in config/key.yml. See key.yml.example

Usage

Add Lucifer to a class like so:

class Person < ActiveRecord::Base
  # Database columns - id(integer), ssn_b(binary)
  encrypt_attributes
end

Lucifer will treat any binary column that ends in _b as encryptable.

person = Person.new :ssn=>'000-00-0000'
=> Person...
person.save
=> true
Person.first.ssn
=> '000-00-0000'

If you check out the database, you'll see

> select * from people;
 ---------------------------------
| id         | ssn_b              |
 ----------------------------------
| 1          | U??6?7f%25(?????   |
 ---------------------------------

Configuration

You can customize Lucifer by passing options like so:

class Person < ActiveRecord::Base
  encrypt_attributes :suffix=>'_encrypted', :key_file=>'lucifer.yml'
end

Author