From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1W6ieN-0002xC-3c for bitcoin-development@lists.sourceforge.net; Fri, 24 Jan 2014 15:26:31 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of petertodd.org designates 62.13.148.99 as permitted sender) client-ip=62.13.148.99; envelope-from=pete@petertodd.org; helo=outmail148099.authsmtp.net; Received: from outmail148099.authsmtp.net ([62.13.148.99]) by sog-mx-4.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1W6ieL-0007ef-5U for bitcoin-development@lists.sourceforge.net; Fri, 24 Jan 2014 15:26:31 +0000 Received: from mail-c235.authsmtp.com (mail-c235.authsmtp.com [62.13.128.235]) by punt18.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s0OFQLlP040234; Fri, 24 Jan 2014 15:26:21 GMT Received: from petertodd.org (petertodd.org [174.129.28.249]) (authenticated bits=128) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s0OFQIbx039071 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Fri, 24 Jan 2014 15:26:20 GMT Date: Fri, 24 Jan 2014 10:26:18 -0500 From: Peter Todd To: Mike Hearn Message-ID: <20140124152617.GA31017@petertodd.org> References: <20140124090218.GA15398@savin> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="DocE+STaALJfprDB" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Server-Quench: e0a2190b-850b-11e3-b802-002590a15da7 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR aQdMdAYUElQaAgsB AmIbWlFeUlt7W2I7 ag1VcwRfa1RMVxto VEFWR1pVCwQmQhx+ cH9nAFFydAxGf38+ ZEZmXHAVCUQrd0d0 QhxJHWgGN3phaTUc TRJQdwFJcANIexZF O1F6ACIKLwdSbGoL NQ4vNDcwO3BTJTpY RgYVKF8UXXNDNDc9 W1gMGi9nB0AYXCw5 KxFuI1IQBksKKUgp WQAA X-Authentic-SMTP: 61633532353630.1023:706 X-AuthFastPath: 0 (Was 255) X-AuthSMTP-Origin: 174.129.28.249/587 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: 1W6ieL-0007ef-5U Cc: Bitcoin Development Subject: Re: [Bitcoin-development] Bait for reusable addresses X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Jan 2014 15:26:31 -0000 --DocE+STaALJfprDB Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jan 24, 2014 at 12:26:19PM +0000, Mike Hearn wrote: > > > > brittleness. The real world experience is that users, or to be exact > > wallet authors, turn down SPV privacy parameters until bloom filters > > have almost no privacy in exchange for little bandwidth usage. >=20 >=20 > That's not fundamental though, it just reflects that the only > implementation of this is used on a wide range of devices and doesn't yet > have any notion of bandwidth modes or monitoring. It can and will be > resolved at some point. Resolved for some users, not for all. The underlying trade-off will always be there; less bandwidth makes it harder, more addresses to check makes it harder; an HD wallet used properly without re-using addresses will quickly lead to a fairly full bloom filter unless addresses are expired, and expiration leads to scenarios where funds can be lost. I think we need to provide users with better options than that. --=20 'peter'[:-1]@petertodd.org 000000000000000064ddd387d7548c97c4d42f4df1008d180f306c59e0440f4f --DocE+STaALJfprDB Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAEBCAAGBQJS4oYZAAoJEBmcgzuo5/CFk4sIAKJy2OexQLpH0909T8VjPv8J 2pMClUfxDt4AncSkkyBBzAweuYhcwBUUjb9k3voNU9nTbnFOx8FC8SFmO6BhnPmC MgpikqmMzewyiY6cWQ1VtUM41hGNnlMBJhhrEUC2HsFw4whNlF3aP9DYg/dvNFnh /Z6ggqVN6gi8pGnouk7PvtT7StCzhW89tHXkiZALmtBHfpAVLEil1FKEY1w2acbc sX6GEDZpx4QVorUHBpBet9U8myUl8/THLY9s6S5jAFOUPKsVYXC5DHEYbZ2ntZWj ZUOepzT6u1pFKwmB5Dd3hyoQrh6RxHt/fVspUoCObxaaIvsrcIV6r1K4ddFAGJ0= =qNgT -----END PGP SIGNATURE----- --DocE+STaALJfprDB--