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| author | Peter Todd <pete@petertodd.org> | 2014-06-06 05:11:34 -0400 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2014-06-06 09:10:34 +0000 |
| commit | 9726235656d082724fcc309ca8ccb49c789c09eb (patch) | |
| tree | 398ab1d5b2791aa18680390ac10e26bf1840fa21 | |
| parent | 50474814d0e76894b0895fc9230475c0face4aa3 (diff) | |
| download | pi-bitcoindev-9726235656d082724fcc309ca8ccb49c789c09eb.tar.gz pi-bitcoindev-9726235656d082724fcc309ca8ccb49c789c09eb.zip | |
Re: [Bitcoin-development] NODE_BLOOM service bit
| -rw-r--r-- | 3c/d4b65a7d52ab8a20fad7b24addd62563310989 | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/3c/d4b65a7d52ab8a20fad7b24addd62563310989 b/3c/d4b65a7d52ab8a20fad7b24addd62563310989 new file mode 100644 index 000000000..e650c24f6 --- /dev/null +++ b/3c/d4b65a7d52ab8a20fad7b24addd62563310989 @@ -0,0 +1,132 @@ +Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] + helo=mx.sourceforge.net) + by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) + (envelope-from <pete@petertodd.org>) id 1WsqAU-0007tF-JB + for bitcoin-development@lists.sourceforge.net; + Fri, 06 Jun 2014 09:10:34 +0000 +Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of petertodd.org + designates 62.13.149.77 as permitted sender) + client-ip=62.13.149.77; envelope-from=pete@petertodd.org; + helo=outmail149077.authsmtp.com; +Received: from outmail149077.authsmtp.com ([62.13.149.77]) + by sog-mx-4.v43.ch3.sourceforge.com with esmtp (Exim 4.76) + id 1WsqAT-0005VJ-CL for bitcoin-development@lists.sourceforge.net; + Fri, 06 Jun 2014 09:10:34 +0000 +Received: from mail-c237.authsmtp.com (mail-c237.authsmtp.com [62.13.128.237]) + by punt15.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s569ALbc095833; + Fri, 6 Jun 2014 10:10:21 +0100 (BST) +Received: from savin (76-10-178-109.dsl.teksavvy.com [76.10.178.109]) + (authenticated bits=128) + by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s569A9gj075755 + (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); + Fri, 6 Jun 2014 10:10:12 +0100 (BST) +Date: Fri, 6 Jun 2014 05:11:34 -0400 +From: Peter Todd <pete@petertodd.org> +To: Gregory Maxwell <gmaxwell@gmail.com> +Message-ID: <20140606091134.GA23205@savin> +References: <20140606081933.GA29458@savin> + <20140606084852.GA30247@netbook.cypherspace.org> + <CAAS2fgTsjZPxds+QHb+ceC_Thu4xsDFAEqXtxznCs_EbyLZepg@mail.gmail.com> +MIME-Version: 1.0 +Content-Type: multipart/signed; micalg=pgp-sha256; + protocol="application/pgp-signature"; boundary="bg08WKrSYDhXBjb5" +Content-Disposition: inline +In-Reply-To: <CAAS2fgTsjZPxds+QHb+ceC_Thu4xsDFAEqXtxznCs_EbyLZepg@mail.gmail.com> +User-Agent: Mutt/1.5.21 (2010-09-15) +X-Server-Quench: 5dd679d8-ed5a-11e3-9f74-002590a135d3 +X-AuthReport-Spam: If SPAM / abuse - report it at: + http://www.authsmtp.com/abuse +X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR + aQdMdgQUEkAaAgsB AmIbWlReUV17WGE7 bAxPbAVDY01GQQRq + WVdMSlVNFUsrBBoI dxdJCBl1cgJDfTBx Z0BnXD5eCBB8ck8p + SlMBQWhXeGZhPWMC WRZfcx5UcAFPdx8U a1N6AHBDAzANdhES + HhM4ODE3eDlSNilR RRkIIFQOdA4tORIR cDomOhIKVVYIXTsy JBFuIF8AdAAA +X-Authentic-SMTP: 61633532353630.1024:706 +X-AuthFastPath: 0 (Was 255) +X-AuthSMTP-Origin: 76.10.178.109/587 +X-AuthVirus-Status: No virus detected - but ensure you scan with your own + anti-virus system. +X-Spam-Score: -1.5 (-) +X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. + See http://spamassassin.org/tag/ for more details. + -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for + sender-domain + -0.0 SPF_PASS SPF: sender matches SPF record +X-Headers-End: 1WsqAT-0005VJ-CL +Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net> +Subject: Re: [Bitcoin-development] NODE_BLOOM service bit +X-BeenThere: bitcoin-development@lists.sourceforge.net +X-Mailman-Version: 2.1.9 +Precedence: list +List-Id: <bitcoin-development.lists.sourceforge.net> +List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe> +List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development> +List-Post: <mailto:bitcoin-development@lists.sourceforge.net> +List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help> +List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>, + <mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe> +X-List-Received-Date: Fri, 06 Jun 2014 09:10:34 -0000 + + +--bg08WKrSYDhXBjb5 +Content-Type: text/plain; charset=us-ascii +Content-Disposition: inline +Content-Transfer-Encoding: quoted-printable + +On Fri, Jun 06, 2014 at 02:03:29AM -0700, Gregory Maxwell wrote: +> On Fri, Jun 6, 2014 at 1:48 AM, Adam Back <adam@cypherspace.org> wrote: +> > Advertising NODE BLOOM as a service sounds good. +> > +> > But the critique of bloom filters, I am not so sure prefix filters are +> > better. Prefix filters offer questionable privacy tradeoffs in my opin= +ion. +> > Same problem as with stealth address proposed use of prefixes. +> > +> > All for scalability, efficiency and decentralization but not ideally at= + the +> > expense of nuking privacy. The effects on privacy are cumulative, and +> > affect everyone not just the user. Same pattern of local decision, glo= +bal +> > effect as with reused addresses. +>=20 +> The performance Bytecoin/Monero/Fantom/etc. systems that use ECDH +> addresses for all transactions seem to be suggesting that the prefixes +> aren't really needed. +>=20 +> At least with current system rules doing the ECDH for each transaction +> seems pretty reasonable. + +Yup. Obelisk's indexing is sufficiently fast that they hadn't even +bothered making Dark Wallet store transaction information between +sessions until recently. Prefix brute-forcing isn't yet implemented, +although prefix filters is being implemented for lookups in general. (at +the very least it gives the server operators some valuable plausible +deniability) + +--=20 +'peter'[:-1]@petertodd.org +00000000000000003a68ee16d702ca5dd5547fb4aead910a004747cb06241dd6 + +--bg08WKrSYDhXBjb5 +Content-Type: application/pgp-signature; name="signature.asc" +Content-Description: Digital signature + +-----BEGIN PGP SIGNATURE----- +Version: GnuPG v1.4.14 (GNU/Linux) + +iQGrBAEBCACVBQJTkYXCXhSAAAAAABUAQGJsb2NraGFzaEBiaXRjb2luLm9yZzAw +MDAwMDAwMDAwMDAwMDAzYTY4ZWUxNmQ3MDJjYTVkZDU1NDdmYjRhZWFkOTEwYTAw +NDc0N2NiMDYyNDFkZDYvFIAAAAAAFQARcGthLWFkZHJlc3NAZ251cGcub3JncGV0 +ZUBwZXRlcnRvZC5vcmcACgkQJIFAPaXwkftD4ggAphIHvgjO/klijrcJkOxBkss8 +HjCzUtQVxl8rkbodbPMi0B6lSeH1FcK2VTprkEMd9tmqk8oKKoijadPkQUn1e/ci +0MJUtoIgWoJf2f8domB0sB+gx2rwUoXbtNWHmJ80s73aRg7xYk5QSoSojpzPvYT4 +1sjbDuBoLxLkVV67N+yA9ewy/OU0GB/JrrzYjq48r+vrTQIsA4c7jZdvIUOUlQC2 +Z2YcYTi8e7mPOQRrc5AbgPLxFInAjbuS2U1T9ceayeJnDSIfM6pmOMqfogYJhNrC +UStG5Xh7ocFzOifhm15q+TvF0g88WbYpwULgpr3+4mskD/biJh9TeyZiK6ozow== +=rOBj +-----END PGP SIGNATURE----- + +--bg08WKrSYDhXBjb5-- + + |