On Wednesday 12 November 2003 11:31 am, Jim Dixon wrote: > On Wed, 12 Nov 2003, [iso-8859-1] Some Guy wrote: > > Here's a neat paper Zooko (the MNet guy) pointed out: > > http://citeseer.nj.nec.com/douceur02sybil.html They argue you'd need a > > central authority to prevent a sybil attack. I think they're wrong. > > The author's claim is negative: he proves that given a reasonable set of > assumptions, it is impossible for a large network without a certification > authority to prevent a single attacker from successfully masquerading as a > number of users. Once one or more attackers have done so, they can then > expand their foothold by endorsing one another as well as other new > attackers. > > His analysis applies to any large-scale p2p network. There are at least > two defenses: either create some sort of certification authority (perhaps > a supervisory p2p network) or allow/encourage fragmentation of the target > network.
Come now, This is not impossible. GNUnet does it. And does it well. I posted a way to adapt this to Freenet's archticture a while back. It can be done. It just requires a big code over hall. _______________________________________________ Devl mailing list [EMAIL PROTECTED] http://dodo.freenetproject.org/cgi-bin/mailman/listinfo/devl
