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Date: Mon, 2 May 2022 18:56:34 +0200
From: Solar Designer <solar@...nwall.com>
To: Prosciuttocraft Bella <frionessw2@...il.com>
Cc: john-users@...ts.openwall.com
Subject: Re: formatting a salted SHA-256 hash
Hi,
On Mon, May 02, 2022 at 06:39:11PM +0200, Prosciuttocraft Bella wrote:
> So i was using john to crack this password hash:
> $SHA$cb62f38e01edfd97$36306c5d0ca620319bef125fe5439c8f827b0039c5696562533dd61c1762a004
>
> but when i try to run the command: john --wordlist=wordlist.txt hash.txt it
> says: No password hashes loaded (see FAQ)
>
> i already read the faq but it didn't help so im asking here why it is not
> working
>
> i think that the password is encrypted like this but im not sure:
>
> "$SHA$" + salt + "$" + sha256(sha256(password) + salt);
Assuming that you're correct about the type of hash, you can get it to
load by formatting it like this:
$dynamic_65$36306c5d0ca620319bef125fe5439c8f827b0039c5696562533dd61c1762a004$cb62f38e01edfd97
Oh, and it gets cracked quickly, so you were in fact correct.
For further occasions, please refer to doc/DYNAMIC for the list of
pre-defined "dynamic formats" (combining various fast hashes like
SHA-256 in various ways). Also relevant is doc/DYNAMIC_EXPRESSION.
Alexander
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