John the Ripper

Pre-made commands

Feed a stolen id_rsa in to john to crack the password

ssh2john id_rsa > ssh.hash
 
# Once ssh.hash is created,
john --wordlist=/usr/share/wordlists/rockyou.txt ssh.hash

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Flags

Flag	Description
-x	What does it do

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Useful Scripts

Useful bash script

#!/bin/bash