Hi, I just took a closer look at one of the (new?) hybrid harddisk drives, such as the Seagate Momentus XT, and now I'm wondering if this is a top level security problem. If I understand it correctly, the 4 GB SSD memory on the harddisk operates independendly of the drive itself, acting as a buffer/cache for virtually all the data stored to the drive. Some logic in the harddrives controller is going to serve the 4 GB SSD memory part, which is not available/accessable to the OS. In other words: such hybrid drives can not safely be encrypted with LUKS/dmcrypt (or any other WDE software), because the controller randomly swaps out 4 GB data to the SSD area, and even after shutting down the machine, parts of/the whole LUKS header/key could possibly be left on the SSD part? ( http://www.youtube.com/watch?v=nX_WyOhTQEw&feature=related ) _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
