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(Solved)samsung840 (SSD) AES onboard hardware for LUKS/trim?
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jpc22
Apprentice
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Joined: 29 Jan 2012
Posts: 195

PostPosted: Thu Mar 27, 2014 9:04 pm    Post subject: (Solved)samsung840 (SSD) AES onboard hardware for LUKS/trim? Reply with quote

Considering buying a ssd to speed up things on my laptop and have done my homework on ssd and luks already but i still have concerns/questions:

Should i just put my encryption on top of theirs when i buy a 840 pro for my laptop and set good passwords for the Bios master, Bios on boot , onboard HDD / Ata drive encryption , my own encryption , and then passwords for root/users /grsec...

Already have lots of them so i guess one more is trivial, but should i set the harddrive password to prevent someone/thing else from setting on and preventing me to acess my data.

Or should i forget about the onboard encryption but erase the code on the drive that allows to delete data and write it down and hide it somewhere better than on the drive and hopes nothing ****s up and screws my data.


Questions now:
Is there a way to use the hardware for luks? or is it possible write a kernel driver for the AES chip and onboard ram onboard those drives and encrypt the ram/store keys to cpu buffers with TRESOR?

Should we expect that method to be faster and to consume less power than the intel AES-NI on some CPU's, by freeing the processor form the decryption work?
Or is it just not worth the trouble?


Last edited by jpc22 on Sun Apr 20, 2014 8:12 pm; edited 1 time in total
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eccerr0r
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Joined: 01 Jul 2004
Posts: 7134
Location: almost Mile High in the USA

PostPosted: Thu Mar 27, 2014 10:52 pm    Post subject: Reply with quote

I don't think you can use the ssd hardware for encryption other than what it does on its own. You'll have to use the CPU for encryption.

Pretty much your call whether you want to trust on-drive encryption or not. Most US DoD does not and forces people to incinerate failed SSDs to make sure data is not recoverable.

I have yet to encrypt my laptop's SSD... lazy lazy lazy...
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