Download John the Ripper - John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS, and OpenVMS. Please consider John the Ripper Pro, which is. By Usama Azad John The Ripper is an open source and very efficient password cracker by Open-Wall. It was originally built for Unix but is now available for fifteen different platforms including Windows, DOS, BeOS, OpenVMS and Unix like operating systems. It is an Open Source tool and is free, though a premium version also exists.

• John The Ripper Program
• John The Ripper Progress Indicator
• John The Ripper Pro Mac Torrent
• John The Ripper Proceeding With Incremental Ascii

Introduction

John the Ripper (JTR) is a widely known and verified fast password cracker, available for Windows, DOS, BeOS, and OpenVMS and many flavours of Linux. It uses wordlists/dictionary to crack many different types of hashes including MD5, SHA, etc.

John the Ripper: Fast Password Cracker

This password cracking tool is free and Open Source, initially developed for the Unix operating system. But today it runs on fifteen different platforms. Its primary purpose is to detect weak Unix passwords. Besides several crypt(3) password hash types most commonly found on various Unix systems, supported out of the box are Windows LM hashes, and a lot of other hashes and ciphers in the community-enhanced version.

For those who rather use commercial version, John the Ripper is available for following platforms:

• Linux: John the Ripper Pro
• Mac OS X: John the Ripper Pro
• Windows: Hash Suite
• Android: Hash Suite Droid

John the Ripper offers two types of attacks:

• Dictionary: It takes text string samples from wordlist, which contains dictionary of real passwords that are cracked before, encrypting it in the same format as the password being examined (encryption algorithm/key), and comparing the output to the encrypted string. John can also perform word alterations.
• Brute force: It goes through all the possible plaintexts, hashing each one and then comparing it to the input hash. This method takes a long time to run, but it’s precious for cracking password that doesn’t appear in wordlist dictionary.

Features/Performance

• Feature-rich and fast password cracking tool, with several cracking modes.
• It allows you to define a custom cracking mode using the built-in compiler supporting a subset of C.
• You can use same cracker everywhere, since John is available for different platforms, with possibility to continue a cracking session started on another platform.
• This tool supports a lot of Unix crypt(3) hash types:
  • traditional DES-based,'bigcrypt',BSDI extended DES-based,FreeBSD MD5-based,OpenBSD Blowfish-based,Kerberos/AFS and Windows LM (DES-based),DES-based tripcodes.
• On Linux distributions with glibc 2.7+, John 1.7.6+ supports SHA-crypt hashes, with optional OpenMP parallelization (requires GCC 4.2+).
• On recent versions of Solaris, John 1.7.6+ supports and autodetects SHA-crypt and SunMD5 hashes, also with optional OpenMP parallelization (requires GCC 4.2+ or recent Sun Studio).
• John the Ripper Pro adds support for Windows NTLM (MD4-based) and Mac OS X 10.4+ salted SHA-1 hashes.
• “Community enhanced” -jumbo versions add support for many more password hash types:
  • Windows NTLM (MD4-based), Mac OS X 10.4-10.6 salted SHA-1 hashes, Mac OS X 10.7 salted SHA-512 hashes, raw MD5 and SHA-1, arbitrary MD5-based “web application” password hash types, hashes used by SQL database servers (MySQL, MS SQL, Oracle) and by some LDAP servers, several hash types used on OpenVMS, password hashes of the Eggdrop IRC bot, and lots of other hash types, as well as many non-hashes such as OpenSSH private keys, S/Key skeykeys files, Kerberos TGTs, PDF files, ZIP (classic PKZIP and WinZip/AES) and RAR archives.
• John the Ripper has its own highly optimized modules for different hash types and processor architectures.

John the Ripper’s Cracking Modes:

1. Wordlist mode
2. Single crack mode
3. Incremental mode
4. External mode

Install

Debian-based systems/Ubuntu

Clone it from the Github repository:

Then build:

John The Ripper Program

To test your build, run:

Windows

Windows users can find detailed documentation on the official John the Ripper Wiki page.

Usage

John The Ripper Progress Indicator

To run John, firstly supply it with some password files and if you wish, specify a cracking mode:

If you want to restrict it to the wordlist mode only (permitting the use of word mangling rules):

To retrieve the cracked passwords, run:

John The Ripper Pro Mac Torrent

Interrupted session can be continued with the following:

John The Ripper Proceeding With Incremental Ascii

Options