Re: [libreoffice-users] Re: how to crack a PW in LO?

I used the following:
http://www.crackpdf.com/
but not the Pro version which allows to make brute force attack, but 
then, they warn you that it will take _a_long_time_ !!!
To remove simple protections, it was really fast, but they unlock the 
file without retrieving the password (or at least they don't display it)
Reards,
Jean-Louis

On 16/10/2012 00:23, Dr. R. O Stapf wrote:
> On 16.10.2012 03:32, Tom Davies wrote:
> > Hi :)
> > The trick is to try to remember what you might have been thinking 
> > about at the time.  If that's even possible for anyone!
> >
> > There is no password cracking functionality or Extension for LO it's 
> > just the inept way MS fails to implement security.  Just double-click 
> > on an xls or open LO and drop the xls into it or open LO and choose
> > File - Open
> > to navigate to and open the xls.  File opens.
> >
> > My company's finance department asked me to add something to one of 
> > their spreadsheets but 'forgot' to tell me the password.  One of them 
> > rushed down to give me the password but was somewhat mortified to 
> > find i had already made the change without having the slightest idea 
> > that there even was a password.  There was a very cofusing 
> > conversation where neither of us had a clue what the other was 
> > talking about until i figured it out.
> >
> > The company still uses Excel and still attempts to 'protect' those 
> > spreadsheets with passwords that don't work.  Occasionally people 
> > give me other files they want cracked which gives me a morale dilemma 
> > each time.  Usually i just give a really half-hearted non-effort and 
> > then fob them off.
> > Regards from
> > Tom :)
> >
> >
> > --- On Mon, 15/10/12, Dr. R. O Stapf <reinhold@stapf-online.com> wrote:
> >
> > From: Dr. R. O Stapf <reinhold@stapf-online.com>
> > Subject: Re: [libreoffice-users] Re: how to crack a PW in LO?
> > To: users@global.libreoffice.org
> > Date: Monday, 15 October, 2012, 15:30
> >
> >
> > On 15.10.2012 23:11, Andreas Säger wrote:
> > > Am 15.10.2012 15:49, rost52 wrote:
> > > > LO files can be protected with PWs when doing "save as".
> > > > Fighting currently with an xls file and its lost PW, I wonder how 
> > > > LO files can be cracked? Can the
> > > > MS related PW remover be used for LO as well?
> > > > Thanks in advance for comments.
> > > xls does not encript your document. The only thing that gets encrypted
> > > is the password. Any old version of OpenOffice.org opens a password
> > > "protected" xls ignoring the password.
> > Thanks for the information. It seems that my version of LO 3.5.6.2 is 
> > too young to ignore the PW of
> > an xls file.
> >
> > However, my question was how to open an LO file if the PW get 
> > forgotten (not and MS file)?
> > Hints are welcome for the future.
> Thanks to all of you providing me with lots of hints on not to forget 
> passwords or prepare in advance for it.
> The SW I am using to crack an xls-file runs already for more than 60 h 
> in the background. It's a nothing to loose only to win job. 6 or 8 
> digits alphanumeric no special characters is the PW used.
>
> Thereafter I will make a test cracking an LO file.
>
> The only thing which makes me wonder is that there are PW removing SW 
> commercially availabe which run demos and claim within 10 - 30 sec 
> they could remove the PW but open the xls file only when I purchase a 
> full license.
>
> Does someone has experience with such a SW?

--
Jean-Louis Oneto
email: jl.oneto@free.fr


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