From: Anonymous <anon@anon.efga.org>
Date: Fri, 7 Nov 1997 01:47:11 +0800
To: cypherpunks@Algebra.COM
Subject: Re: Protocols for Insurance to Maintain Privacy
Message-ID: <03fc89ba5c3283279c439ca450c74fc1@anon.efga.org>
MIME-Version: 1.0
Content-Type: text/plain



Two ways to tell if the person has had the test:

A) The company performing the test keeps track of everyone who has had it.
This could be by some biometric ID, perhaps even a DNA fingerprint.

B) The company performing the test marks people who have had it.  They
could have a harmless radioactive tracer injected.  This would degrade
after a while but it could be used to see if the test had been taken
within some time interval.

Both of these require that all companies able to issue the test cooperate
and that there is no black market source of testing.