Excerpts from Eric Rescorla on Sun, Sep 13, 2009 11:09:31PM -0700:
At Sun, 13 Sep 2009 21:19:53 -0700 (PDT),
Ole Jacobsen wrote:
Eric,
The local hosts are reading the messages on this list and will take
appropriate steps including:
* Not displaying the ID number <--> attendee mapping anywhere
* Not assigning numbers sequencially
That seems like a good start. As Richard and I have both indicated,
however, this system seems to have substantial residual privacy
risk, even if the identifiers are assigned completely unpredictably
(and note that non-sequential and unpredictable are not at all the
same thing).
So don't carry it. Or carry it in your faraday cage passport holder.
I think it's fair to say that the people running this experiment
haven't done anything like full disclosure of the relevant
risks--and it's not even clear that they understand them themselves.
Please help them
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