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[ Source: john  ]

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active password cracking tool

john, mostly known as John the Ripper, is a tool designed to help systems administrators to find weak (easy to guess or crack through brute force) passwords, and even automatically mail users warning them about it, if it is desired.

It can also be used with different cyphertext formats, including Unix's DES and MD5, Kerberos AFS passwords, Windows' LM hashes, BSDI's extended DES, and OpenBSD's Blowfish.

Tags: Implemented in: C, User Interface: Command Line, Role: Program, Scope: Utility, Security: Authentication, Purpose: Checking

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Download john

Download for all available architectures
Architecture Package Size Installed Size Files
amd64 200.6 kB532.0 kB [list of files]
armel 172.7 kB472.0 kB [list of files]
i386 277.9 kB784.0 kB [list of files]
ia64 322.0 kB796.0 kB [list of files]
kfreebsd-amd64 200.6 kB458.0 kB [list of files]
kfreebsd-i386 183.5 kB442.0 kB [list of files]
mips 236.1 kB588.0 kB [list of files]
mipsel 229.8 kB584.0 kB [list of files]
powerpc 219.6 kB532.0 kB [list of files]
s390 211.7 kB536.0 kB [list of files]
sparc 201.6 kB516.0 kB [list of files]