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From: Gregory Maxwell <gmaxwell@gmail.com>
To: Stefan Thomas <moon@justmoon.de>
Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] Double spend detection to speed up transaction trust
Date: Thu, 4 Aug 2011 18:18:40 -0400	[thread overview]
Message-ID: <CAAS2fgSmHJOd38FicROapfcYoxooCvg_Hh1Cc1r1WjOkGW+yjA@mail.gmail.com> (raw)
In-Reply-To: <4E3B18F3.4010605@justmoon.de>

On Thu, Aug 4, 2011 at 6:10 PM, Stefan Thomas <moon@justmoon.de> wrote:
> Would network support like a MSG_DOUBLESPEND be better? I used to think
> yes, but looking at the reality of Transaction Radar, I'm not so sure.
> Nothing stops such a service from scaling up and connecting to thousands
> of random nodes (especially when the network itself grows bigger),

Except for the fact that such a party is a DOS attack on the network
which is already short on functioning listeners.  I don't have much
doubt that people doing the "connect to everyone" are already causing
harm. There are some nodes in .ru/.ua which aggressively connect to me
(instant reconnects if I hang up on them) which have never passed me a
transaction in all my available logs.

Alerts scale better— both can have a place in the ecosystem, they're
actually complementary: Alerts are vulnerable to filtering by sibyl
attackers but they have deeper network penetration and where filtering
doesn't prevent them you don't need a connection to hear them.



  reply	other threads:[~2011-08-04 22:18 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-04 13:23 [Bitcoin-development] Double spend detection to speed up transaction trust Andy Parkins
2011-08-04 17:45 ` Matt Corallo
2011-08-04 18:22   ` Andy Parkins
2011-08-04 18:39     ` Matt Corallo
2011-08-04 19:42       ` Andy Parkins
2011-08-04 20:07         ` Andrew Schaaf
2011-08-04 20:38           ` Matt Corallo
2011-08-04 22:10             ` Stefan Thomas
2011-08-04 22:18               ` Gregory Maxwell [this message]
2011-08-04 22:21                 ` Matt Corallo
2011-08-05  0:07                   ` Gavin Andresen
2011-08-04 20:08         ` Gregory Maxwell
2011-08-04 20:33         ` Matt Corallo
2011-08-04 21:36         ` Mike Hearn
2011-08-04 22:16           ` Matt Corallo
2011-08-05  0:14             ` Stefan Thomas
2011-08-05 11:05               ` Mike Hearn
2011-08-05 11:58                 ` Andy Parkins
2011-08-05 12:06                   ` Matt Corallo
2011-08-05 13:03                     ` Andy Parkins
2011-08-05 21:23                       ` Gregory Maxwell
2011-08-05 21:30                       ` Matt Corallo
2011-08-05 12:00               ` Matt Corallo

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