[E-Lang] Ownership certificates via capabilities?

[Ben Laurie]

hal@finney.org wrote:
> For example, I think Mark has said that off-line capabilities can be
> done without public key encryption, using symmetric encryption like
> DES instead.  Off-line capabilities implemented using this technology
> would seemingly not be able to solve the card game problem, because they
> can't be third-party verified.

If it hurts, don't do it! Can't see how this matters?

> However I must admit that my understanding of these issues is very
> sketchy.  David asked me, well then, what kind of solution could you
> expect to see using capabilities?  Haven't I defined the problem in such
> a way that any use of capabilities would not apply?  Maybe so, but I
> don't know if that means that the problem is ill posed, or whether it
> is significant that capabilities cannot deal with it (assuming that is
> the case).

I claim it is not the case (see my previous reply, though not my first
one :-).

Cheers,

Ben.

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