Re: [tor-talk] Propsal for decentralization of the Tor network

[Cari Machet <carimachet@xxxxxxxxx>]

prove decentralization creates vulnerability to a larger degree than
centralization



On Mon, Nov 24, 2014 at 2:57 AM, Gregory Maxwell <gmaxwell@xxxxxxxxx> wrote:

> On Mon, Nov 24, 2014 at 1:07 AM,
> <BM-2cUqBqHFVDHuY34ZcpL3PNgkpLUEEer8ev@xxxxxxxxxxxxx> wrote:
> > I have carefully checked trac and torproject.org website for proposals,
> > seen many interesting ones but not a single one to decentralize the Tor
> > network from the direcotry authorities. There are many ways to accomplish
> > this apparently, and it's the only way to guarantee full independence and
> > anonymity.
> >
> > Are there even plans to make this change? Or the current system which
> > offers full control for few people seams good enough to you?
>
> It's far from clear to me that substantially stronger decentralization
> is practically possible for this application; at least not without
> additional assumptions and exposure to new and concerning attack
> vectors.
>
> I think a better short term goal would be improving review and
> auditability... which I think can be done.  E.g. better tools for
> providing convincing evidence that the directory authorities are not
> misbehaving, and additional protections against misbehaving, better
> automatic handling should authorities misbehave. (E.g. making it so
> that authority signing is moved into a HSM which at least enforces the
> constraint that only a single signature will be given for a particular
> time period, or the like;  making proof of a misbehaving authority
> forever ban that authority, beyond a threshold misbehaving should shut
> down the network until manually overridden, etc.).
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