Fredrick Regnery | 2 Jun 2005 17:49
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Re: using John to crack MD5 password with more than 13 characters

Dear Sir,
Regards,
Fred

Denis Ducamp <Denis.Ducamp-Hj/Rmgn/efDYtjvyW6yDsg@public.gmane.org> wrote:
On Thu, Jun 02, 2005 at 12:03:33PM -0300, Alceu R. de Freitas Jr. wrote:
> Hello everybody,

Hi,

> I have an web application that uses MD5 and base64
> encoding to protect users passwords. I would like to
> run john against these passwords and check for weak
> ones.
[...]
> There is any way to use John the Ripper to help with
> that?

By default john only knows about "Unix'md5" not raw md5. You have to apply
the raw-md5 patch and try with --format=rawMD5.

The format of the password should be the same as the one from openssl :
$ echo -n bunda | openssl md5
55b0c86ed75326a42b7a48c3fbf67baf

Have fun,

Denis.

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Gmane