Publisher review:Crack is a password guessing program that is designed to quickly locate insecurities in Unix (or other) password files. Crack is a password guessing program that is designed to quickly locate insecurities in Unix (or other) password files by scanning the contents of a password file, looking for users who have misguidedly chosen a weak login password.
Features:
-Ships with Eric Young's "libdes" as standard -API for ease of integration with arbitrary crypt() functions -API for ease of integration with arbitrary passwd file format -Considerably better gecos-field checking -Ability to read dictionaries generated by external commands -recovery mechanisms for jobs interrupted by crashes -Easier to control (eg: to put to sleep during working hours) -Tested on Solaris, Linux, FreeBSD, NetBSD, OSF and Ultrix
Crack 5.0 is a C/C++ script for Security Systems scripts design by Alec Muffett.
It runs on following operating system: Linux / BSD / Solaris.
Operating system:Linux / BSD / Solaris
Crack 5.0 script details 
