17 Jul
2009
17 Jul
'09
5:10 a.m.
On Wed, Jul 15, 2009 at 7:16 AM, Sarad AV<jtrjtrjtr2001@yahoo.com> wrote:
hi,
I came across this link through this months Cryptogram. http://oculislabs.com/Products/ChameleonP.htm ... it prevents TEMPEST?
display emanations are just a small subset of emsec interest, particularly in a networked environment. in any case, display obfuscation based on gaze / focal tracking can be defeated with additional effort. (will it cost more to attack? yes. is this cost reasonable, maybe - depends on threat model, etc, etc.) there are similar techniques based on altering the font rendering behavior on LCD displays and various types of hardware / software setups... best regards,