Help ssh2john

I took id_rsa and did that:
Ssh2john id_rsa > crack.txt

John wordlist(rockyou) crack.txt

But John don’t display me the password im sure that the password is into rockyou…
Time to finish bruteforce : 2020…

LITTLE EDIT: i have created rsa_id with ssh-keygen to test john with little wordlist and john get in output with wrong password… (the password that i entered was password123)

we can discuss on PM.

John should not try bruteforcing if you define a wordlist.

Can you paste the exact commant to this post?

Type your comment> @cpc6128 said:

John should not try bruteforcing if you define a wordlist.

Can you paste the exact commant to this post?

john --wordlist=/usr/share/wordlists/rockyou.txt /root/crack.txt

I usually use the syntax john <hashfile> --wordlist=<wordlist>

Type your comment> @clubby789 said:

I usually use the syntax john --wordlist=

The same thing happens…

Can you paste your ssh hash?

Or even better the id_rsa file

ssh2john id_rsa > crack
john --format=SSH --wordlist=rockyou crack
when it’s done
john crack --show

Type your comment> @crash0 said:

ssh2john id_rsa > crack
john --format=SSH --wordlist=rockyou crack
when it’s done
john crack --show

It don’t work for me, john finish in 2020 lol, and if i interrupt the brute john - - show crack = 0 password found 1 hash left

@cpc6128 said:
Or even better the id_rsa file

Here id_rsa clean
And id_rsa after ssh2john

Thank you. I think the cracking issue is related to bcrypt.
My VM is only doing 20-30 Hashes per Second!

Where did you get this id_rsa file ?!?

Type your comment> @cpc6128 said:

Thank you. I think the cracking issue is related to bcrypt.
My VM is only doing 20-30 Hashes per Second!

Where did you get this id_rsa file ?!?

Ssh-keygen
But the problem is with all id_rsa, for example box traverxec(rooted) i can’t decode with ssh2jhn

Type your comment> @xVoid said:

Ssh-keygen
But the problem is with all id_rsa, for example box traverxec(rooted) i can’t decode with ssh2jhn

ssh2john converts the private key to a format that john can crack it. You output this as a file and then you run john on it

I have also root at traverxec. So just drop a message, if we should have a look at the problem.

Type your comment> @cpc6128 said:

I have also root at traverxec. So just drop a message, if we should have a look at the problem.
I rooted too traverxec
But the problem persist

Type your comment> @crash0 said:

Type your comment> @xVoid said:

(Quote)
ssh2john converts the private key to a format that john can crack it. You output this as a file and then you run john on it

I tryed too ssh2john id_rsa > crack(not txt)

can anyone help me on “couldn’t parse file” error while coverting RSA key with ssh2john.py.

can you copy and paste the begin and the end from the rsa file?

Try this:
john --wordlist=/usr/share/wordlists/rockyou.txt crack.txt

Assuming your rockyou list is still in /usr/share/wordlists… otherwise include your file path