phrasen|drescher (p|d) is a modular and multi processing pass phrase cracking tool.
It comes with a number of plugins but a simple plugin API allows an easy development
of new plugins. The main features of p|d are:

* Modular with the use of plugins
* Multi processing
* Dictionary attack with or without permutations (uppercase, lowercase, l33t, etc.)
* Incremental brute force attack with custom character maps