On Sat, Apr 24, 2010 at 06:44:52PM +0200, Richard Zidlicky wrote: [...] > very offtopic, I would think there is certainly pressure from various > agencies and companies not to erase anything. Given that printers are > programmed to print secret identification patterns on every page there > could be quite a few surprises lurking in copiers. Only for color printers. It serves to identify a printer that was used in couterfiting currency. Storing everything in copiers is infeasible. Thstorage available is just about enough for the largest possible print-job, usually not more than 1000 or so different pages. Given that this limit is routinely exceeded in a day, almost all pages will not be stored. > > That is way you use encryoption on top. However, it is higly unlikely > > current HDDs/SSDs store a lot of information of this type. The storage > > space is just not there. > > most will do clever traffic analysis trying to predict access patterns at > the very least. Most likely not store everything to survive reboots but > there can be exceptions. Sorry, but I openend my SSD. There are just no bits in there for this. My 30GB SSD has 2GB extra storage, most used for spares for broken cells. The rest cannot store a lot. In addition, the SSD does not have a clock that would be essential for adding timestamps to a data access pattern log. Here is a story from my country some years back. The federal prolice wanted to have all emails copied and archived. The ISPs responded with the query where the cubic-meter of DAT tapes per day should go? After this (and after realizing the cost, which the police would have had to pay), the proposal was off the table. -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans 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
