[148517] in cryptography@c2.net mail archive
Re: [Cryptography] DNSNMC deprecates Certificate Authorities and
daemon@ATHENA.MIT.EDU (Greg)
Thu Dec 19 02:53:19 2013
X-Original-To: cryptography@metzdowd.com
From: Greg <greg@kinostudios.com>
In-Reply-To: <CAG5KPzx2g8b7vnkdyg3YNS3_Lq_9xfZTzPxTTq3j3fTR0iV4Tg@mail.gmail.com>
Date: Thu, 19 Dec 2013 01:38:40 -0500
To: Ben Laurie <ben@links.org>
Cc: Jerry Leichter <leichter@lrw.com>, Cryptography <cryptography@metzdowd.com>
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com
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On Dec 18, 2013, at 5:50 PM, Ben Laurie <ben@links.org> wrote:
>> As far as I was able to tell, the paper was a restatement of the =
well-known
>> 51% problem.
>=20
> Let us suppose for a moment that this is correct. What is the
> well-known solution to the well-known 51% problem?
I included this link in my reply to you:
https://en.bitcoin.it/wiki/Proof_of_blockchain_fair_sharing
Proof of blockchain fair sharing is a draft Bitcoin protocol change =
proposal by Iain Stewart, with the goal of allowing the network to =
continue to settle on a sensible consensus blockchain even when subject =
to a considerably-greater-than-50% attack.
The protocol is under construction. The following description is a =
"teaser", establishing its basic flavour and sketching how it exploits =
an asymmetry in the goals of the honest (<50%) and malicious (>50%) =
miners to avoid the usual reductio ad absurdum argument against any =
protocol surviving a >50% attack.=20
- Greg
--
Please do not email me anything that you are not comfortable also =
sharing with the NSA.
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><div><div>On Dec 18, 2013, at 5:50 PM, Ben Laurie =
<<a href=3D"mailto:ben@links.org">ben@links.org</a>> =
wrote:</div><blockquote type=3D"cite"><blockquote type=3D"cite">As far =
as I was able to tell, the paper was a restatement of the =
well-known<br>51% problem.<br></blockquote><br>Let us suppose for a =
moment that this is correct. What is the<br>well-known solution to the =
well-known 51% problem?<br></blockquote></div><div><br></div><div>I =
included this link in my reply to you:</div><div><br></div><div><a =
href=3D"https://en.bitcoin.it/wiki/Proof_of_blockchain_fair_sharing">https=
://en.bitcoin.it/wiki/Proof_of_blockchain_fair_sharing</a></div><div><br><=
/div><blockquote style=3D"margin: 0px 0px 0px 40px; border: none; =
padding: 0px;"><p><b>Proof of blockchain fair sharing</b> is a =
draft Bitcoin protocol change proposal by <a =
href=3D"https://en.bitcoin.it/wiki/User:Ids" title=3D"User:Ids">Iain =
Stewart</a>, with the goal of allowing the network to continue to settle =
on a sensible consensus blockchain <i>even when subject to a =
considerably-greater-than-50% attack</i>.</p><p>The protocol is under =
construction. The following description is a "teaser", establishing its =
basic flavour and sketching how it exploits an asymmetry in the goals of =
the honest (<50%) and malicious (>50%) miners to avoid the usual =
reductio ad absurdum argument against <i>any</i> protocol =
surviving a >50% attack. </p></blockquote><div =
apple-content-edited=3D"true"><br></div><div =
apple-content-edited=3D"true">- Greg</div><div =
apple-content-edited=3D"true"><br>--<br>Please do not email me anything =
that you are not comfortable also sharing with the =
NSA.</div></body></html>=
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