**From:** Russell Wallace (*russell.wallace@gmail.com*)

**Date:** Mon Jan 08 2007 - 20:42:32 MST

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On 1/9/07, maru dubshinki <marudubshinki@gmail.com> wrote:

*>
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*> I'm not so sure this is true. Public-key cryptography, for example,
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*> relies on it being easier to check that two primes multiply to a given
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*> number than it is to actually obtain the answer by factoring that
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*> given number. Wouldn't zero-knowledge proofs[1] provide a basis for
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*> information as currency? It allows people to verify the authenticity
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*> of information to a desired degree of certainty, but wouldn't let any
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*> of the information leak (which would 'devalue' the possessor's asset).
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Zero-knowledge proofs and similar techniques can verify the truth of things

like logical statements about the properties of certain integers. They can't

verify that a statement about the real world, corresponds to a state of

affairs that actually obtains in the real world.

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