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Date: Thu, 1 Jun 2023 19:02:48 +0000
From: Thomas Ward <>
To: "" <>
Subject: RE: "No hashes found" when argon2id is present?

That's a pretty old bug, any timeline on OpenWall's side as to when you'll actually *update* implementation?  When trying to run a breach simulation on a set of password hashes I have which I'm doing white-hat hacking stuff on, the hashes are all argon2id and not having this in John is problematic - using other tools exhaust >= 32GB of memory, which causes issues with attempting to crack it.


-----Original Message-----
From: Solar Designer <> 
Sent: Thursday, June 1, 2023 2:56 PM
Subject: Re: [john-users] "No hashes found" when argon2id is present?

On Thu, Jun 01, 2023 at 12:51:36PM -0400, Thomas Ward wrote:
> I have a file with an `argon2id` hash in it, specifically this one 
> (this is a test hash with 'Passw0rd' as the password, not an actual 
> password) generated from the PyPI `argon2-cffi` library:
> $argon2id$v=19$m=65536,t=4,p=2$w6DmOoIk0tVKDoXEeaYE0ZB9KqZ6Uw$zO3D4nlA
> When I try and pass this file to john, it says "no hashes found".  Is 
> john incapable of processing argon2id hashes?

That's correct.  We need to update the Argon2 implementation as part of this issue:


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