Disk Encryption: aes-xts-plain vs aes-xts-essiv

[phoenixprecedent () gmail com]

I've searched around and I can't seem to find a straight answer.

Is ESSIV necessary in conjunction with XTS?

dm-crypt/Luks recommends using "plain," but without justification/explanation.

I'm no cryptographer, but a little insight would be helpful.

Thanks,
Phoenix

------------------------------------------------------------------------
This list is sponsored by: InfoSec Institute

Need to pass the CISSP? InfoSec Institute's CISSP Boot Camp in both Instructor-Led and Online formats is the most 
concentrated exam prep available. Comprehensive course materials and an expert instructor means you pass the exam. Gain 
a laser like insight into what is covered on the exam, with zero fluff! 

http://www.infosecinstitute.com/courses/cissp_bootcamp_training.html
------------------------------------------------------------------------