On Mon, Apr 27, 2009 at 8:59 AM, <DerKlappstuhl@xxxxxx> wrote: > Hi, > > as my topic says, by mistake I overwrote the first 512bytes of my dmcrypt partition... > I read the On-Disk Format Specification and some information on your website and it says the 'Meta-Data redundancy' ist NOT yet implementet - so the keys are only stored in the first 512bytes, correct????? Well, the actual key used for bulk encryption [or copies of it] isn't stored in the first 512 bytes of disk. The key slots are at 208-592 byes. Each one 48 bytes in size. So, you've key slot 8 intact, and key slot 7 partially intact. If you were luckly you were using slot 8, but that's unlikely - most people end up using just slot 1. Now your bulk data encryption key is still intact, but without access to what was in the keyslot [mainly the salt used, you could with a few 1000 or 10000 tries guess the iteration count] you're not going to be able to retrieve it using your password. -- Roscoe --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
