Eternity Uncensorable?

Wei Dai weidai at
Wed Aug 6 12:03:55 PDT 1997

On Wed, 6 Aug 1997, Mark Grant wrote:

> That's not what I meant; I'm assuming that the mixmaster chain is pretty
> secure. The problem is that when the government find 'nuclear terrorist
> money-laundering kiddie drug porn' on the Eternity server they can trace
> it back to the original Usenet message and then go after the remailer
> operator who posted it. Making the remailers disposable or setting them up
> in free countries would work, but I'd prefer a technical solution. 

I suggest using information dispersal to spread risk amongst remailer
operators.  Use Rabin's information dispersal technique to divide up a
document into n shares such that k of them can reconstruct the original,
and post each share via a seperate remailer.  It would be hard for the
government to single out an operator to go after since an individual share
by itself is useless.

If n>k this also increases reliability and resilience of the eternity
service against technical attacks.

More information about the cypherpunks-legacy mailing list