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authorEric Voskuil <eric@voskuil.org>2016-06-28 23:59:54 +0200
committerbitcoindev <bitcoindev@gnusha.org>2016-06-28 22:00:02 +0000
commit268f339d8228152e5fbcd164ab4ed0513a570828 (patch)
tree79f14ba19c8ab7c1ad40fefd2c68a429058afd10
parent268ae2ea610088d26d665305b24c99d73985484a (diff)
downloadpi-bitcoindev-268f339d8228152e5fbcd164ab4ed0513a570828.tar.gz
pi-bitcoindev-268f339d8228152e5fbcd164ab4ed0513a570828.zip
Re: [bitcoin-dev] BIP 151
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+From: Eric Voskuil <eric@voskuil.org>
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+Date: Tue, 28 Jun 2016 23:59:54 +0200
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+References: <87h9cecad5.fsf@rustcorp.com.au>
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+Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
+Subject: Re: [bitcoin-dev] BIP 151
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+
+
+> On Jun 28, 2016, at 11:36 PM, Gregory Maxwell <greg@xiph.org> wrote:
+>=20
+> On Tue, Jun 28, 2016 at 9:22 PM, Eric Voskuil via bitcoin-dev
+> <bitcoin-dev@lists.linuxfoundation.org> wrote:
+>> An "out of band key check" is not part of BIP151.
+>=20
+> It has a session ID for this purpose.
+
+Passing the session ID out of band is authentication. As this is explicitly n=
+ot part of BIP151 it cannot be that BIP151 provides the tools to detect a at=
+tack (the point at issue).
+
+>> It requires a secure channel and is authentication. So BIP151 doesn't pro=
+vide the tools to detect an attack, that requires authentication. A general r=
+equirement for authentication is the issue I have raised.
+>=20
+> One might wonder how you ever use a Bitcoin address, or even why we might g=
+uess these emails from "you" aren't actually coming from the NSA.
+
+The sarcasm is counterproductive Greg. By the same token I could ask how you=
+ ever use Bitcoin given that the P2P protocol is not encrypted or authentica=
+ted.
+
+It doesn't matter who I am, maybe I am the NSA. I don't argue from a positio=
+n of authority. Signing my emails while traveling on holiday with only my ph=
+one gets a little tedious.
+
+The blockchain and mempool are a cache of public data. Transmission of a pay=
+ment address to a payer is not a comparable scenario.
+
+The possibility that authentication may become required to participate in th=
+is trustless network is a legitimate concern, and one that has not been addr=
+essed.
+
+e=
+