Bill Soley wrote:
I am thinking that trust is a relationship. "A trusts B". So if you start with "A trusts B" and you do some operation that results in "C trusts B" then you have not copied anything because "A trusts B" is not equal to "C trusts B". You can't call that operation a "copy".

Trust is indeed expressed by relationships. And those relationships can be transmitted with proper consideration -- just not in your example. In the case of SSL certs, a simple file copy is enough.

Cheers,
Ed Gerck

Addendum:

Did you have a chance yet to read Kelly's paper? In that paper, he is looking for stuff that can't be copied -- because he hopes that such stuff is scarce and valuable. "When copies are free, you need to sell things which can not be copied."

Kelly says that we can't copy trust. So, if I have 100 servers for the domain example.com does this mean that I have to buy 100 trusted SSL certs from the CA? Or, is any copy of the SSL cert as trustworthy as the original?

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