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Date: Sat, 30 Nov 2019 12:47:43 +0100
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: No password hashes loaded

On Fri, Nov 29, 2019 at 09:46:33PM +0000, David Taylor wrote:
> So I attempted an argon2i password with the file contents below and it still gives me the same
> "No password hashes loaded" error. 
> 
> Am I doing something wrong? 
> 
> $argon2i$m=30000,t=12,p=1$XEnOfP5QoauyEumeJVXhqSbzDrTCde4cIl/A0GiVd+srJ1kSff0xshZSHk0spwPR

As far as I'm aware, this isn't a properly encoded Argon2 hash - it
lacks the '$' separator between salt and hash.

Let's generate a valid one:

$ echo -n password | ./argon2 salthere -i -t 12 -k 30000 -p 1
Type:		Argon2i
Iterations:	12
Memory:		30000 KiB
Parallelism:	1
Allocating 30720000 bytes
Hash:		4101658ddd3e0555cdf10036b9d90ee2e72084f8d1b119af5aa774f1e938592b
Encoded:	$argon2i$v=19$m=30000,t=12,p=1$c2FsdGhlcmU$QQFljd0+BVXN8QA2udkO4ucghPjRsRmvWqd08ek4WSs
0.200 seconds
Verification ok

And let's crack it:

$ cat pw-argon 
$argon2i$v=19$m=30000,t=12,p=1$c2FsdGhlcmU$QQFljd0+BVXN8QA2udkO4ucghPjRsRmvWqd08ek4WSs

$ ./john pw-argon 
Using default input encoding: UTF-8
Loaded 1 password hash (argon2 [Blake2 AVX])
Cost 1 (t) is 12 for all loaded hashes
Cost 2 (m) is 30000 for all loaded hashes
Cost 3 (p) is 1 for all loaded hashes
Cost 4 (type [0:Argon2d 1:Argon2i]) is 1 for all loaded hashes
Will run 32 OpenMP threads
Proceeding with single, rules:Single
Press 'q' or Ctrl-C to abort, almost any other key for status
Almost done: Processing the remaining buffered candidate passwords, if any.
Proceeding with wordlist:./password.lst, rules:Wordlist
password         (?)
1g 0:00:00:10 DONE 2/3 (2019-11-30 12:44) 0.09523g/s 48.76p/s 48.76c/s 48.76C/s 123456..crawford
Use the "--show" option to display all of the cracked passwords reliably
Session completed

$ ./john --show pw-argon 
?:password

1 password hash cracked, 0 left

Alexander

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