← All Kali Issues
John the Ripper

Convert hash for john

C Cracking Medium

🔴 Error Message

Need to extract hash from file for John

📖 What This Means

File hash extraction required.

🔧 Step-by-Step Fix

  1. ZIP: zip2john file.zip > hash.txt
  2. RAR: rar2john file.rar > hash.txt
  3. PDF: pdf2john.py file.pdf > hash.txt
  4. Shadow: unshadow /etc/passwd /etc/shadow > hash.txt
  5. SSH key: ssh2john id_rsa > hash.txt

🔗 More John the Ripper Issues

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No password hashes loaded
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OpenCL not found
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Session locked
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Unsupported hash type
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Incremental mode slow
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Mangled rules error
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