la, 2010-07-17 kello 11:46 +0200, Heinz Diehl kirjoitti: > As far as I understand, the SSD part of these hybrid drives is used as a > cache, which doesn't loose its data when powered off. Correct, but the same of course applies for the disk itself. It doesn't magically cache the computer's unencrypted memory, merely what's written on the disk. If that includes unencrypted encryption keys, you'd have the same problem without said cache. The most the SSD cache can do to harm you is to perhaps have leftover overwritten old data that wouldn't otherwise exist on the drive anymore. But with proper use of dm-crypt, any such leftovers would be encrypted along with the rest of it. > When you format the disc using "cryptsetup luksFormat", the 4 GB SSD part > isn't included. Please correct me if I'm wrong. You're wrong in a very confused way. The SSD never stores anything that wasn't on the hard disk, and only a part of that anyway. All operations on the disk likewise indirectly affect the SSD cache. -- Mikko Rauhala <mjr@xxxxxx> - http://www.iki.fi/mjr/blog/ The Finnish Pirate Party - http://piraattipuolue.fi/ World Transhumanist Association - http://transhumanism.org/ Singularity Institute - http://singinst.org/ _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
