How to use the John the Ripper password cracker

Password crackers are essential tools in any pen tester's toolbox. This step-by-step tutorial explains how to use John the Ripper, an open source offline password-cracking tool.

The John the Ripper 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. Read this TechTarget media now for step-by-step usage instructions.