On Fri, Jun 17, 2005 at 09:03:57AM +0200, martin f krafft wrote: > also sprach Florian Weimer <[EMAIL PROTECTED]> [2005.06.17.0848 +0200]: > > These are *cipher* blocks, and they are chained only within > > a *block device* block. > > Who guarantees that? If Cipherblock CB_x depends on CB_(x-1), then > CB_last will indirectly depend on CB_first. If the data are large > enough to span multiple block device blocks, damage to the beginning > of the cipherfile makes the rest of the file unusable, no?
wouldn't it be possible to test that? Scenario: encrypt /dev/hda7, mount, fill it with some hundred small files (with known content), unmount, change one bit/byte/block on /dev/hda7 (using dd), remount, look for the remaining files and their contents. I can imagine this might work; errors dont' have to be implemented in hardware, do they? Greetings Horst -- ... I don't know why but, suddenly, I want to discuss declining I.Q. LEVELS with a blue ribbon SENATE SUB-COMMITTEE! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
