What can we do with John the Ripper?
Cracking Passwords
John the Ripper's primary modes to crack passwords are single crack mode, wordlist mode, and incremental. The single crack mode is the fastest and best mode if you have a full password file to crack. Wordlist mode compares the hash to a known list of potential password matches.
What is the ripper used for?
A popular offline password cracker is John the Ripper. This tool enables security practitioners to crack passwords, regardless of encrypted or hashed passwords, message authentication codes (MACs) and hash-based MACs (HMACs), or other artifacts of the authentication process.
How does John the Ripper guess passwords?
How does John the Ripper guess passwords? John the Ripper uses a rainbow table approach: it hashes the guessed password and compares it to the list of password hashes you feed into it.
Is John the Ripper password cracker free?
John the Ripper is a free password cracking software tool.