[P2P-F] Multi-party-Computation Cryptography. Why it is important..

Fri Jul 15 05:40:39 CEST 2011

*Dear Apostolis,

One of the things I have been saying recently, is that ideally, 'material'
economic coalitions, say the Brazilian solidarity economy counting 4 million
workers, should work together using open design; THEN, choose to practice
open book management; in this way, all supply and demand information, but
also the transparency of ethical practices, would lead to much greater
mutual coordination, possibly replacing market pricing as allocation
mechanism (replacing one summary and misleading information point, with a
multitude of factors to take into account).

No doubt, this practice would be aided, if they could use something like
what you are proposing? Or am I interpreting this wrong?

Michel
*
On Fri, Jul 15, 2011 at 7:59 AM, Apostolis Xekoukoulotakis <
xekoukou at gmail.com> wrote:

> I have found  this kind of cryptography recently and I thought you might
> like it. (As always, no warranties)
>
> What is MPC?
>
> Participants - peers agree to evaluate a specific function. They will give
> their data and each one of them will receive part of the evaluation.
> One's data and results are kept private from the others.
> No one can cheat, Noone can try to change the rules without the others
> agreeing.
>
> This is called an Ideal Functionality.
>  http://en.wikipedia.org/wiki/Universal_composability#Ideal_functionality
>
> In its essence, it emulates the existence of a trusted party - Government
> that enforces that participants abide by the rules.
>
> How does this change the way we design new economic alternatives?
>
> 1. We can create economic alternatives that are based on the fact that all
> information is known. Today each and every corporation withholds information
> from the general public.
>
> 2. If a) We create an economic system based on a function that if not used
> will have important economic loses for that person.
>       b) the function we use doesnt deteriorate the states of the other
> participants if someone sends false data.(while abiding by the rules)
>
> then any rules participants agree to will be enforcable.
>
>
> What are the changes, again?
>
> We can create an imaginary economic system and we dont have to worry any
> more about corrupt governments, institutions etc. Whatever the societal
> structures might be created, they will not be able to be corrupted in such a
> way as to deviate from the rules of the function.
>
> Why is MPC important ,again?
>
> We should stop trying to make small changes because we find it difficult to
> 'enforce' them. We should start thinking big.
>
> Lets start by rejecting anything we knew till now.
>
> Check this example: http://viff.dk/doc/applications.html#nordic-sugar for
> an understanding how it works...
>
> references:http://viff.dk/
>
> http://en.wikipedia.org/wiki/Secure_multi-party_computation
>
>
>
> ps. my economic model relies on the existence of such a non-corruptible
> government.
>
>
>
> --
>
>
> Sincerely yours,
>
>      Apostolis Xekoukoulotakis
>
>
>
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