On Wed, Feb 04, 2015 at 14:30:17 CET, U.Mutlu wrote: > Quentin Lefebvre wrote, On 02/04/2015 02:02 PM: > >Hi, > > > >Le 04/02/2015 13:33, U.Mutlu a écrit : > >>Hi, > >>what happens if an encrypted filesystem (plain, no LUKS) > >>next time is opened accidently with a wrong password, > >>and new data written to it? Will the filesystem then become > >>damaged/unusable? > > > >What typically happens when you use a wrong password is that the > >cryptsetup create/open command is indeed successful, but mounting your > >partition will fail (because the filesystem is not detected). So you > >have few chance to accidentally damage a filesystem, even in plain > > mode. > > I tried this out now, and indeed that's cool! > Thank you for this useful tip, it spares me to study further > also the LUKS stuff, as plain is IMHO sufficient for my needs. > The main drawback with plain seems to be that one cannot change > the password, instead one needs to re-enrcrypt into a new file/device. That, you have only one password, and you do not get some additional protection for weak passwords from salting and iteration. With a good, passphease plain is about as secure as LUKS, namely not breakable. (See FAQ item 5.1 for details of what "good" means.) Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@xxxxxxxxxxx GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- A good decision is based on knowledge and not on numbers. -- Plato If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
