Danke Schön, Heinz Diehl, and in the meantime I have found and may use: http://rumkin.com/tools/password/passchk.php if it is trustworthy. Number of characters,entropy and characterset comes out here. --------------------------------------------------------- > ----- Original Message ----- > From: "Heinz Diehl" <htd@xxxxxxxxxxxxxxxxx> > To: dm-crypt@xxxxxxxx > Subject: Re: Crack a dm-LUKS partition or harddisk > Date: Thu, 5 Nov 2009 22:34:44 +0100 > > > On 05.11.2009, Si St wrote: > > > By the way: Is there a way to reasonably fast check out the > > entropy of a chosen password or phrase? > > You can calculate the strength of your passphrase using this formula: > > bits = (n * log q) / log 2 > > Where "n" is the lenght of your passphrase (how many characters) and "q" > is the amount of available characters. > > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt > -- _______________________________________________ Surf the Web in a faster, safer and easier way: Download Opera 9 at http://www.opera.com Powered by Outblaze _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt