john ☆
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Description:
Featureful UNIX password cracker
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Security
Tags: security password cracker audit encryption
Install: brew install john
About:
John the Ripper is a fast and powerful password cracking tool designed to detect weak passwords. It supports numerous cipher and hashing algorithms, making it versatile for auditing password security across different systems. Its main value lies in its high performance and extensive format support for offline cracking.
Key Features:
  • Supports multiple encryption formats (DES, MD5, Kerberos, etc.)
  • Highly optimized for performance on various CPU architectures
  • Auto-detection of hash types for user convenience
  • Extensible via community modules and scripts
Use Cases:
  • Auditing local system password security
  • Recovering lost passwords for encrypted archives
  • Penetration testing and security assessments
Alternatives:
  • Hashcat – Hashcat utilizes GPU acceleration for significantly faster cracking speeds on supported algorithms.
Version History
Detected Version Rev Change Commit
Sep 12, 2025 10:06am 1 VERSION_BUMP c541aa68
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