hshr was built for a challenge to unhash a given string.
Original challenge that this was based off of: https://trello.com/jobs/android-developer
Usage: hshr [options]
Options:
-h, --help output usage information
-V, --version output the version number
-c, --characters Specify how many characters are in string
-d, --dehash Dehash the provided string
-k, --key Specify the key to be used in hash