zero-knowledge protocols

[Roger Dingledine]

On Sun, Apr 13, 2008 at 09:58:50AM +0700, Roy Lanek wrote:
> What I am talking about is a way to introduce a kind of an auditable [who
> does what, where and when], cryptographic 'sudo' in tor and a way to let the
> *investigators* prove convincingly that they are behind someone/some people in
> particular.

Ah! Finally a paragraph I understand.

For which I wrote a related FAQ entry earlier:

https://www.torproject.org/faq-abuse#TracingUsers

One day we'll write up a more clear and complete answer, but for now
the very short answer is "you can't do that." Math only goes so far when
confronted with real-world identity and humans.

--Roger