From: lcottrell@popmail.ucsd.edu (Lance Cottrell)
Date: Thu, 11 Aug 94 23:49:52 PDT
To: cypherpunks@toad.com
Subject: Re:  RemailerNet
Message-ID: <199408120649.XAA07108@ucsd.edu>
MIME-Version: 1.0
Content-Type: text/plain


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>Actually, the odds are better than this, .8^5, about 0.33.  You will be
>compromised "only" 1/3 of the time.
>
>But if you are sending regular messages to another party, then traffic
>analysis will quickly show that you are communicating, because even if
>the boys at Langley are really dumb, you won't make send more than
>two or three messages without having all the cherries lining up.
>
>You will be protected if you have encrypted your messages, but using
>a remailer network offers little additional protection.
>
>--
>Jim Dixon

I am not sure I see why you think that the "cherries" will line up.
If one has the two honest remailers in the chain, then the only information
the TLA has is that you sent a message, and the other person received one of
the N messages in the labyrinth. N is the number of messages sent which could
have been the received message (this is proportional to the number of messages
in being reordered). It all depends on how big N is. Given the current traffic
load, I suspect you are correct.

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--------------------------------------------------
Lance Cottrell  who does not speak for CASS/UCSD
loki@nately.ucsd.edu
PGP 2.3 key available by finger or server.

"Love is a snowmobile racing across the tundra.  Suddenly
it flips over, pinning you underneath.  At night the ice
weasels come."
                        --Nietzsche