[e-lang] Card game based on covert channels

[Chris Hibbert]

> I have just remembered that there is a card game that is based on
> covert channels. Tt is "Contract Bridge". Covert channel is
> established and used in bidding process. There is also a way to
> introduce a noise in the channel to confuse opponents covert channel.
> 
> This game might be a good sample to explain what is a covert channel
> in the protocol in security books or articles.

That's an interesting idea, but the fact that the bidders are required 
to explain their (partners') bids makes it more overt than covert.  I 
think it may make a good opening example, but if you try to explain it 
in any depth, the analogy will get pretty strained.

And most bidding systems discourage injecting noise into the opponents' 
channel, since your partner is expected to decode that as a signal to her.

Chris
-- 
Currently reading: David Buller: Adapting Minds;
    Patrick W. Rice, IRA Wealth: Strategies for Real Estate
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Chris Hibbert
hibbert at mydruthers.com
Blog:   http://pancrit.org