From: Gavin Andresen <gavinandresen@gmail•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Draft BIP for Bloom filtering
Date: Wed, 24 Oct 2012 16:29:07 -0400 [thread overview]
Message-ID: <CABsx9T2Oc+LeJjczG_U9u06gkQRmSP0J8Q_hEJv0oGQLnKFuJw@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP1AFL6ZbV7Njr1s8ggsZkQA1dv_3LYT3z+y83UKqn7Kgg@mail.gmail.com>
On Wed, Oct 24, 2012 at 3:10 PM, Mike Hearn <mike@plan99•net> wrote:
> Bitcoin already keeps track of which nodes have seen what to avoid redundant
> inv announcements.
Oops, right. That memory usage is bounded right now by bounds on the
memory pool size, though, right? (I'm being lazy and not digging into
that code)
What is the worst-case for an attacker interested in trying to get you
to saturate your upstream bandwidth or use lots of memory? Set a
bloom filter that matches everything, and then start requesting old
blocks in the chain? It would be nice if the worst-case was no worse
than the worst-case we've got now (... requesting full, old
blocks...).
--
--
Gavin Andresen
next prev parent reply other threads:[~2012-10-24 20:29 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-24 15:56 Mike Hearn
2012-10-24 16:22 ` Pieter Wuille
2012-10-24 16:35 ` Mike Hearn
2012-10-24 17:11 ` Pieter Wuille
2012-10-24 18:54 ` Gavin Andresen
2012-10-24 19:00 ` Matt Corallo
2012-10-24 19:10 ` Mike Hearn
2012-10-24 20:29 ` Gavin Andresen [this message]
2012-10-24 20:58 ` Mike Hearn
2012-10-24 21:55 ` Jeff Garzik
2012-10-25 16:56 ` Gregory Maxwell
2012-10-25 17:01 ` Gregory Maxwell
2012-10-26 14:01 ` Mike Hearn
2012-10-26 14:17 ` Gregory Maxwell
2012-10-26 14:21 ` Mike Hearn
2012-10-26 14:34 ` Gregory Maxwell
2012-11-06 19:14 ` Pieter Wuille
2012-11-21 15:15 ` Pieter Wuille
2012-11-21 18:38 ` Matt Corallo
2012-11-27 21:10 ` Pieter Wuille
2013-01-10 15:21 ` Mike Hearn
2013-01-11 3:59 ` Matt Corallo
2013-01-11 5:02 ` Jeff Garzik
2013-01-11 14:11 ` Mike Hearn
2013-01-11 14:13 ` Mike Hearn
2013-01-16 10:43 ` Mike Hearn
2013-01-16 15:00 ` Matt Corallo
2013-01-18 16:38 ` Mike Hearn
2013-01-19 9:51 ` Andreas Schildbach
2013-01-30 11:09 ` Mike Hearn
2013-01-30 11:13 ` Mike Hearn
2013-02-06 16:33 ` Mike Hearn
2013-02-06 16:45 ` Gregory Maxwell
2013-02-20 12:44 ` Mike Hearn
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