cache cookies: more details

[Edward Felten <felten () CS PRINCETON EDU>]

For more information on cache cookies and related 
topics, see the paper by Michael Schneider and me, 
from the recent ACM Conference on Computer and 
Communications Security:

http://www.acm.org/pubs/articles/proceedings/comm
sec/352600/p25-felten/p25-felten.pdf