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Message-ID: <63223d5ad75228e753b1b96ccd0eb95b@smtp.hushmail.com>
Date: Mon, 17 Jan 2022 21:45:12 +0100
From: magnum <magnumripper@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: Grammar for dynamic function
On 2022-01-17 17:42, Rodrigo s wrote:
> What I am trying to do is this function:
> *sha512($u.$p.$s)*
The easy way is to use the "dynamic ad-hoc" (or dynamic compiler) format
because you can use that literal formula you wrote above, like this:
$ ./john -test -format:'dynamic=sha512($u.$p.$s)'
Benchmarking: dynamic=sha512($u.$p.$s) [256/256 AVX2 4x]... DONE
Many salts: 5278K c/s real, 5278K c/s virtual
Only one salt: 4710K c/s real, 4710K c/s virtual
Please note that you need hyphens around the formula so your shell
doesn't act up with the dollar signs.
The input format is:
user:<hex hash>$<salt>
So here's a hash with username "JRLuser", salt "TheSalt" and a password
of "magnum":
echo > test.in 'JRLuser:23750433e3685f544c02884cd622570f3d73b359be7dc5d9d5e87c3e394fc53f16dfad34d02680f24d99036aba63014be1343fe60e5391d8366d7be7b432db17$TheSalt'
$ ./john -format:'dynamic=sha512($u.$p.$s)' test.in
Using default input encoding: UTF-8
Loaded 1 password hash (dynamic=sha512($u.$p.$s) [256/256 AVX2 4x])
Warning: no OpenMP support for this hash type, consider --fork=16
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
magnum (JRLuser)
1g 0:00:00:00 DONE 2/3 (2022-01-17 21:39) 100.0g/s 2137Kp/s 2137Kc/s
2137KC/s 123456..Geronimo
No remaining hashes
Use the "--show --format=dynamic=sha512($u.$p.$s)" options to display
all of the cracked passwords reliably
Session completed.
In case you need/want to put the salt in hex, use HEX$ like this:
user:<hex hash>$HEX$<hex salt>
Hope this helps.
magnum
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