public inbox for bitcoindev@googlegroups.com
 help / color / mirror / Atom feed
From: Ivan Brightly <ibrightly@gmail.com>
To: Peter Todd <pete@petertodd.org>
Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] We need to fix the block withholding attack
Date: Mon, 28 Dec 2015 15:26:43 -0500	[thread overview]
Message-ID: <CAAre=ySPjm+cyLdBY_CZkLdfXE3OFYgECEUq05AyWfY0q1KuTQ@mail.gmail.com> (raw)
In-Reply-To: <20151228191228.GC12298@muck>

[-- Attachment #1: Type: text/plain, Size: 1205 bytes --]

>
> On Mon, Dec 28, 2015 at 2:12 PM, Peter Todd via bitcoin-dev <
> bitcoin-dev@lists.linuxfoundation.org> wrote:
> Far more concerning is network propagation effects between large and
> small miners. For that class of issues, if you are in an environemnt
> where selfish mining is possible - a fairly flat, easily DoS/sybil
> attacked network topology - the profitability difference between small
> and large miners even *without* attacks going on is a hugely worrying
> problem. OTOH, if you're blocksize is small enough that propagation time
> is negligable to profitability, then selfish mining attacks with <30%
> hashing power aren't much of a concern - they'll be naturally defeated
> by anti-DoS/anti-sybil measures.
>

Let's agree that one factor in mining profitability is bandwidth/network
reliability/stability. Why focus on that vs electricity contracts or
vertically integrated chip manufacturers? Surely, sufficient network
bandwidth is a more broadly available commodity than <$0.02/kwh
electricity, for example. I'm not sure that your stranded hydroelectric
miner is any more desirable than thousands of dorm room miners with access
to 10gbit university connections and free electricity.

[-- Attachment #2: Type: text/html, Size: 1643 bytes --]

  parent reply	other threads:[~2015-12-28 20:26 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-19 18:42 [bitcoin-dev] We need to fix the block withholding attack Peter Todd
2015-12-19 19:30 ` Bob McElrath
2015-12-19 20:03 ` jl2012
2015-12-20  3:34 ` Chris Priest
2015-12-20  3:36   ` Matt Corallo
2015-12-20  3:43     ` Chris Priest
2015-12-20  4:44       ` Peter Todd
2015-12-26  8:12         ` Multipool Admin
2015-12-27  4:10           ` Geir Harald Hansen
2015-12-28 19:12           ` Peter Todd
2015-12-28 19:30             ` Emin Gün Sirer
2015-12-28 19:35               ` Multipool Admin
2015-12-28 19:33             ` Multipool Admin
2015-12-28 20:26             ` Ivan Brightly [this message]
2015-12-29 18:59               ` Dave Scotese
2015-12-29 19:08                 ` Jonathan Toomim
2015-12-29 19:25                 ` Allen Piscitello
2015-12-29 21:51                   ` Dave Scotese
2015-12-20  3:40   ` jl2012
2015-12-20  3:47     ` Chris Priest
2015-12-20  4:24       ` jl2012
2015-12-20  5:12         ` Emin Gün Sirer
2015-12-20  7:39           ` Chris Priest
2015-12-20  7:56             ` Emin Gün Sirer
2015-12-20  8:30               ` Natanael
2015-12-20 11:38           ` Tier Nolan
2015-12-20 12:42             ` Natanael
2015-12-20 15:30               ` Tier Nolan
2015-12-20 13:28           ` Peter Todd
2015-12-20 17:00             ` Emin Gün Sirer
2015-12-21 11:39               ` Jannes Faber
2015-12-25 11:15                 ` Ittay
2015-12-25 12:00                   ` Jonathan Toomim
2015-12-25 12:02                   ` benevolent
2015-12-25 16:11                   ` Jannes Faber
2015-12-26  0:38               ` Geir Harald Hansen
2015-12-28 20:02               ` Peter Todd
2015-12-26  8:23             ` Eric Lombrozo
2015-12-26  8:26               ` Eric Lombrozo
2015-12-26 15:33               ` Jorge Timón
2015-12-26 17:38                 ` Eric Lombrozo
2015-12-26 18:01                   ` Jorge Timón
2015-12-26 16:09               ` Tier Nolan
2015-12-26 18:30                 ` Eric Lombrozo
2015-12-26 19:34                   ` Jorge Timón
2015-12-26 21:22               ` Jonathan Toomim
2015-12-27  4:33                 ` Emin Gün Sirer

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAAre=ySPjm+cyLdBY_CZkLdfXE3OFYgECEUq05AyWfY0q1KuTQ@mail.gmail.com' \
    --to=ibrightly@gmail.com \
    --cc=bitcoin-dev@lists.linuxfoundation.org \
    --cc=pete@petertodd.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox