Tools & Utility

John The Ripper

Open-source password cracker supporting hundreds of hash and cipher types.

#password#cracking#john#hash

John The Ripper: Password Cracker

John the Ripper is a free and open-source password security auditing and password recovery tool available for many operating systems.

Usage

bash
# Basic cracking
john hash.txt


Specify wordlist

john --wordlist=/usr/share/wordlists/rockyou.txt hash.txt


Specific format

john --format=raw-md5 hash.txt


Show cracked passwords

john --show hash.txt


Incremental mode (brute-force)

john --incremental hash.txt

Useful Scripts

bash
# Extract hashes
zip2john file.zip > hash.txt
rar2john file.rar > hash.txt
ssh2john id_rsa > hash.txt
pdf2john file.pdf > hash.txt