summaryrefslogtreecommitdiff
path: root/61/82476c49bef376e0b442c40e524dad9c5d6f81
blob: fafc6aa98595ced383226da22b810accd74434cf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
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 1W5CmT-0002GA-Rx
	for bitcoin-development@lists.sourceforge.net;
	Mon, 20 Jan 2014 11:12:37 +0000
Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of petertodd.org
	designates 62.13.149.113 as permitted sender)
	client-ip=62.13.149.113; envelope-from=pete@petertodd.org;
	helo=outmail149113.authsmtp.com; 
Received: from outmail149113.authsmtp.com ([62.13.149.113])
	by sog-mx-4.v43.ch3.sourceforge.com with esmtp (Exim 4.76)
	id 1W5CmS-0002nz-Md for bitcoin-development@lists.sourceforge.net;
	Mon, 20 Jan 2014 11:12:37 +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 s0KBBtQi061680;
	Mon, 20 Jan 2014 11:11:55 GMT
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 s0KBBi8g082471
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO);
	Mon, 20 Jan 2014 11:11:47 GMT
Date: Mon, 20 Jan 2014 06:11:44 -0500
From: Peter Todd <pete@petertodd.org>
To: Troy Benjegerdes <hozer@hozed.org>
Message-ID: <20140120111144.GG3468@savin>
References: <CANEZrP1KAVhi_-cxCYe0rR9LUSYJ8MyW8=6eSJZ65FeY5ZJNuQ@mail.gmail.com>
	<20140114225321.GT38964@giles.gnomon.org.uk>
	<CANAnSg0tH_bK_19rsRRHOeZgrGYeWMhW89fXPyS4DQGmS4r_7A@mail.gmail.com>
	<CALimQCXgc0eXeOcqFGUaCpSF7gKEe87KzvLqHZwUysV3WyjjGw@mail.gmail.com>
	<CAAS2fgShChAQryfUOBp60jB-zxn2tH986fu1HfT+LsNdBYnoYg@mail.gmail.com>
	<CAJHLa0P5r2+kxy7w8G=h=TAhdk1jUoW5UOiv-euo47uQY0u9ZA@mail.gmail.com>
	<20140115230901.GA25135@netbook.cypherspace.org>
	<op.w9q85wkhyldrnw@laptop-air.hsd1.ca.comcast.net>
	<CAAS2fgTRKgkO15VUvVgttP-iEBNF4=G+++Xo-XsaRBmOxyXXKA@mail.gmail.com>
	<20140118174452.GG3180@nl.grid.coop>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha256;
	protocol="application/pgp-signature"; boundary="0qt3EE9wi45a2ZFX"
Content-Disposition: inline
In-Reply-To: <20140118174452.GG3180@nl.grid.coop>
User-Agent: Mutt/1.5.21 (2010-09-15)
X-Server-Quench: a7a90033-81c3-11e3-94fa-002590a135d3
X-AuthReport-Spam: If SPAM / abuse - report it at:
	http://www.authsmtp.com/abuse
X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR
	aQdMdAIUElQaAgsB AmIbWlVeUVx7XWs7 bAxPbAVDY01GQQRq
	WVdMSlVNFUsrAWdz dEcWBRl6dQFBeTBx Z05nXD4KWxVzdUZ+
	QVNcFD4FeGZhPWMC WUQOJh5UcAFPdx8U a1N6AHBDAzANdhES
	HhM4ODE3eDlSNilR RRkIIFQOdA4WGDo9 QRkBFzEiVVYZTjky
	JFQvJlIGEV0KZQ18 eUA5RxcAKR4MAwZP fQkNOiILb2IdSiMv
	EQMSdEISCjBGWipH Q3UA
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: 1W5CmS-0002nz-Md
Cc: "bitcoin-development@lists.sourceforge.net"
	<bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] unlinakble static address? & spv-privacy
 (Re: Stealth Addresses)
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: Mon, 20 Jan 2014 11:12:38 -0000


--0qt3EE9wi45a2ZFX
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Sat, Jan 18, 2014 at 11:44:52AM -0600, Troy Benjegerdes wrote:
> > Ignoring prefixes the cost for each reusable address is only a small
> > percentage of the full node cost (rational: each transaction has one
> > or more ECDSA signatures, and the derivation is no more expensive), so
> > I would only expect computation to be an issue for large centralized
> > services. (non-full nodes suffer more from just the bandwidth impact).
>=20
> I have not seen anyone address my high-level question to (somewhat) compl=
icated
> mechanisms to keep coin flows private.
>=20
> Who pays for it? From what I see it's going to double the amount of data=
=20
> needed per address, further centralizing 'full' nodes. I'm fine if the NSA

Actually the exact encoding is still undetermined - other encodings I
proposed in my original paper are the same size or even smaller than a
standard transaction.

--=20
'peter'[:-1]@petertodd.org
000000000000000190a2900f1a25c507a999fa11116f7bd0126618c1ebc4f5fb

--0qt3EE9wi45a2ZFX
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iQGrBAEBCACVBQJS3QRwXhSAAAAAABUAQGJsb2NraGFzaEBiaXRjb2luLm9yZzAw
MDAwMDAwMDAwMDAwMDE5YmI2NDlmYTdjMWQ0NGVlMDg2YWZiNjcyMWZhOTJkZGIw
OTI2NTA2NjAwZDgzMjUvFIAAAAAAFQARcGthLWFkZHJlc3NAZ251cGcub3JncGV0
ZUBwZXRlcnRvZC5vcmcACgkQJIFAPaXwkfsbCggAnPmDxVqoreaT/r+m7ACPezq4
gX6TgzgngOcADvx3tCi9IU6Ip/6YemF8guBTgHmIyrF+r1dQIzsYYj9FHVTViyq9
oaIoOwYbOrfq6uffjro0/IGVveKe3xsDh0/p41a5WmMixqnntlqohJr6J1wKxVGF
USQf8XDCtUkr7Q1zcqvZACZ1lvT56Bue/K91B0EyVVUPzjVbgdAtuhys5+phYKau
BDFgKzS7IkmUdv+fTTqKY01hz6BjSCj1LdrVrM8ql9DYkCHPaZ4PCMtoYgtLjBTQ
frB6cH3T9Jxg5OZCMufI7L0h3Ee963BCoJCwPdTVYpvkuWa4dJb7jOVsOaTUzA==
=8nv9
-----END PGP SIGNATURE-----

--0qt3EE9wi45a2ZFX--