IrcBlowfish

A Ruby module for encrypting and decrypting IRC Blowfish ECB/CBC messages.

Installation

Add this line to your application's Gemfile:

gem 'ircblowfish'

And then execute:

$ bundle

Or install it yourself as:

$ gem install ircblowfish

Usage

message = '+OK '
key = 'ecb:AWeakKey'
plaintext = IrcBlowfish.decrypt message, key

text = 'This is a test string'
key = 'cbc:ABetter?Key'
message = IrcBlowfish.encrypt text, key

To define an ECB key, prefix it with either ecb: or old:. CBC keys can be prefixed with cbc: or are assumed to be CBC with no prefix.

You can explicitly call encrypt_ecb or encrypt_cbc, but just calling encrypt will automatically figure out which to use based on the key passed.

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/JasonIverson/ircblowfish.

License

The gem is available as open source under the terms of the MIT License.