[Bitcoin-development] Protocol extensions

Christian Decker decker.christian at gmail.com
Sat Dec 17 20:34:14 UTC 2011


Criticism accepted, although I'd appreciate it if you supply some reasons
about why it's such a bad idea :-)
The idea was never really popular and before starting work on a real
implementation I wanted to test the water, and should it turn out it's
complete non-sense I'm happy to accept that.

I don't want to have a DHT for the DHTs sake, I was more interested in
reducing the number of messages that need to be sent around the network,
since network load is going to be a major problem if we ever grow beyond a
certain point.

Just wanting to brainstorm.

Regards,
Chris
On Sat, Dec 17, 2011 at 8:28 PM, Gregory Maxwell <gmaxwell at gmail.com> wrote:

> On Sat, Dec 17, 2011 at 8:37 AM, Christian Decker
> <decker.christian at gmail.com> wrote:
> > My idea was to structure the network in a hypercube and use prefixes to
> > address different parts of the network, and use those prefixes also to
> find
> > the location where an item (transaction, block, ...) should be stored.
> Each
> > vertex in the hypercube is a small, highly connected, cluster of nodes.
>
> I strongly advise people who are not me to use this sort of scheme, so
> that I may enjoy the benefits of robbing you blind.
>
>
> .... But really, saying "some sort of DHT" without basically
> presenting a working implementation that demonstrates the feasibility
> of solving the very difficulty attack resistance problems these
> schemes have basically triggers my time-wasting-idiot filter.  (Or
> likewise, presenting a fixed network structure that would have a nice
> small and easily identifiable min-cut...)
>
> I don't doubt I'm completely alone in this,  though perhaps I'm more
> of a jerk about it.   Even if your actual proposal might have some
> merit you should be aware that every fool who has operated a
> bittorrent client has heard of "DHT" and, although they may not even
> understand what a hash table is, many have no reservation going around
> suggesting them for _every_ distributed systems problem. Want to scale
> matrix multiples? DHT! Want to validate bitcoin blocks? DHT! Network
> syncup slow (because It's bound on validation related local IO)? DHT!
> I suggest people solve the real problems first, then worry what name
> to give the solutions. ;)
>
> To address gavin's tragedy of the commons concern, one useful feature
> would being able to mutually authenticate a peer... then full nodes
> could pick and choose which lite nodes they're willing to do (a lot
> of) hard work for. This would also be valuable because some modes of
> lite operation require non-zero trust of the full node being queried.
>
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