On 31/May/11 17:28, John R. Levine wrote:
Chain of trust is always an appealing model. Unfortunately, it hasn't
been used successfully over the open Internet.
I agree with your doubts about the utility of chain of trust, but I would
have to say that SSL signed web sites are used successfully over the open
Internet.
The power grid probably raises such issues as well. I just stumbled
on this http://tcipg.org/publications?tag=291
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