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From: Peter Todd <pete@petertodd.org>
To: Gavin Andresen <gavinandresen@gmail.com>
Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] BIP proposal: Increase block size limit to 2 megabytes
Date: Sat, 6 Feb 2016 17:22:21 -0500	[thread overview]
Message-ID: <20160206222221.GA12092@muck> (raw)
In-Reply-To: <CABsx9T2AUwDdz3JowpQYeusDgCBwfNFCDz0Kfut9ffT6gSaGeQ@mail.gmail.com> <CABsx9T2LuMZciXpMiY24+rPzhj1VT6j=HJ5STtnQmnfnA_XFUw@mail.gmail.com>

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On Sat, Feb 06, 2016 at 10:37:30AM -0500, Gavin Andresen via bitcoin-dev wrote:
> 2) People are committing to spinning up thousands of supports-2mb-nodes
> during the grace period.

Why wouldn't an attacker be able to counter-sybil-attack that effort?

Who are these people?


On Sat, Feb 06, 2016 at 12:45:14PM -0500, Gavin Andresen via bitcoin-dev wrote:
> Would Blockstream be willing to help out by running a dozen or two extra
> full nodes?

I'll remind everyone that Bitcoin Core does not condone participation in
network attacks to push controversial protcol changes through. I also
checked with Adam Back, who confirmed Blockstream as a company shares
those views.


For those readers unfamiliar with Sybil attacks, basically what the
above does is prevents nodes from being able to finding peers with
accurate information about what blockchains exist - the above can be
used to prevent nodes from learning about the longest chain for
instance, or the existance of substantial support for a minority chain.
This is why we've advocated giving users sufficient time to actively
opt-in to protocol changes.

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org
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  parent reply	other threads:[~2016-02-06 22:22 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-05 20:51 [bitcoin-dev] BIP proposal: Increase block size limit to 2 megabytes Gavin Andresen
2016-02-05 22:36 ` Yifu Guo
2016-02-07 17:09   ` Gavin Andresen
2016-02-05 23:04 ` Btc Drak
2016-02-06  0:12 ` Luke Dashjr
2016-02-06  3:14   ` Jorge Timón
2016-02-06 15:37     ` Gavin Andresen
2016-02-06 17:01       ` Adam Back
2016-02-06 17:45         ` Gavin Andresen
2016-02-06 21:11           ` Peter Todd
2016-02-06 21:24             ` Peter Todd
2016-02-09  5:11             ` Samson Mow
2016-02-06 21:28           ` David Thomson
2016-02-07 18:49         ` Chris Priest
2016-02-06 17:09       ` Jorge Timón
2016-02-06 17:25         ` Tom Zander
2016-02-06 20:22           ` Chris Priest
2016-02-06 20:46           ` Luke Dashjr
2016-02-07 14:16             ` Gavin Andresen
2016-02-07 15:06               ` Alex Morcos
2016-02-07 16:54                 ` Peter Todd
2016-02-07 15:19               ` Anthony Towns
2016-02-07 17:10                 ` Jonathan Toomim
2016-02-07 17:24                   ` jl2012
2016-02-07 17:56                     ` Jonathan Toomim
2016-02-07 21:01               ` Luke Dashjr
2016-02-07 21:33                 ` Steven Pine
2016-02-07 22:04                   ` Corey Haddad
2016-02-07 22:25                     ` Steven Pine
2016-02-06 20:36       ` Luke Dashjr
2016-02-06 22:22       ` Peter Todd [this message]
2016-02-07  5:21       ` Jannes Faber
2016-02-07 18:55         ` Jonathan Toomim
2016-02-07 19:03           ` Patrick Strateman
2016-02-07 19:19             ` Trevin Hofmann
2016-02-07 20:29             ` Tier Nolan
2016-02-09 13:59       ` Yifu Guo
2016-02-09 16:54         ` Gavin Andresen
2016-02-10  6:14           ` David Vorick
2016-02-10  6:36             ` Patrick Shirkey
2016-02-10 12:58             ` Tier Nolan
2016-02-07 11:37 ` Anthony Towns

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