SSH PrivKey Passphrase

ssh2john

• Private Keys Sometimes have a Passphrase.

• But they are crackable (if not too complicated)

• /usr/share/john/ssh2john.py

• /usr/share/JohnJumbo/run/ssh2john.py

Hash:
> python ssh2john.py id_rsa > sshkey
> python /usr/share/JohnJumbo/run/ssh2john.py davidkey.pem > sshkey

Crack:
> john sshkey
> john --wordlist=/opt/wordlist/rockyou.txt sshkey

Tried Hashcat, but Didn't work for me:
sudo hashcat --force -m 500 -a 0 -O sshkey /opt/wordlist/rockyou.txt


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alternate:

python sshng2john.py idrsa > sshkey
john sshkey

REF: Cracking/John, SSHTips