Implementation of an algorithm for breaking the PkZip cipher

Current version

Recent formula history

ilovezfs pkcrack: remove patch (#18207)
Gautham Goli pkcrack: fully scope test system call
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Baptiste Fontaine pkcrack: conflicts with libextractor

Formula code at GitHub