John the Ripper
Versatile cracking.
What Is John the Ripper?
John the Ripper (JtR) is a classic, highly versatile password cracker. The jumbo build supports hundreds of formats and bundles dozens of helper tools (the *2john family) for extracting hashes from files.
John's Cracking Modes
JtR has three core modes:
- Single crack — uses login/GECOS info as hints
- Wordlist — tries entries from a dictionary, optionally with rules
- Incremental — smart brute force using character frequency
All lessons in this course
- Wordlists and Rules
- Hashcat
- John the Ripper
- Online vs Offline Attacks