G S Osler wrote on 2003-02-28 21:05 UTC:
> Do we have any filtered Tempest fonts available for X.

BDF was not designed to carry gray-scale bitmap glyphs, as would be
necessary to display low-pass filtered fonts.

The X11 font system is in addition at present not capable to vary each
useage of a glyph, as it would be essential to make sure the filtering
does not actually leak more information on digital video links.

Putting an anti-tempest filter into freetype2 has been on my todo list
for a long time (and might remain there a bit longer given current
workload).

Markus

-- 
Markus Kuhn, Computer Lab, Univ of Cambridge, GB
http://www.cl.cam.ac.uk/~mgk25/ | __oo_O..O_oo__

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