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
|
Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193]
helo=mx.sourceforge.net)
by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76)
(envelope-from <chris@beams.io>) id 1WTpSL-0005Un-Gw
for bitcoin-development@lists.sourceforge.net;
Sat, 29 Mar 2014 09:21:37 +0000
X-ACL-Warn:
Received: from chello084114181075.1.15.vie.surfer.at ([84.114.181.75]
helo=mini.local) by sog-mx-3.v43.ch3.sourceforge.com with esmtp
(Exim 4.76) id 1WTpSH-0002xr-PJ
for bitcoin-development@lists.sourceforge.net;
Sat, 29 Mar 2014 09:21:37 +0000
Received: from localhost (localhost [127.0.0.1])
by mini.local (Postfix) with ESMTP id 38748516817
for <bitcoin-development@lists.sourceforge.net>;
Sat, 29 Mar 2014 10:21:26 +0100 (CET)
X-Virus-Scanned: amavisd-new at mini.local
Received: from mini.local ([127.0.0.1])
by localhost (mini.local [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id obwfrbuAv6rG
for <bitcoin-development@lists.sourceforge.net>;
Sat, 29 Mar 2014 10:21:17 +0100 (CET)
Received: from [192.168.0.14] (chello084114181075.1.15.vie.surfer.at
[84.114.181.75]) by mini.local (Postfix) with ESMTPSA id 0768E516801
for <bitcoin-development@lists.sourceforge.net>;
Sat, 29 Mar 2014 10:21:16 +0100 (CET)
Content-Type: multipart/signed;
boundary="Apple-Mail=_DE1C9485-772A-4C74-9CE8-1701A8A152DB";
protocol="application/pgp-signature"; micalg=pgp-sha1
Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\))
X-Pgp-Agent: GPGMail 2.1 (8c620b1)
From: Chris Beams <chris@beams.io>
In-Reply-To: <1878927.J1e3zZmtIP@crushinator>
Date: Sat, 29 Mar 2014 10:21:16 +0100
Message-Id: <22007B81-4578-4565-A6DD-73DFEB6A09B4@beams.io>
References: <1878927.J1e3zZmtIP@crushinator>
To: bitcoin-development@lists.sourceforge.net
X-Mailer: Apple Mail (2.1874)
X-Spam-Score: 1.3 (+)
X-Spam-Report: Spam Filtering performed by mx.sourceforge.net.
See http://spamassassin.org/tag/ for more details.
1.3 RCVD_IN_RP_RNBL RBL: Relay in RNBL,
https://senderscore.org/blacklistlookup/
[84.114.181.75 listed in bl.score.senderscore.com]
0.0 RCVD_IN_SORBS_DUL RBL: SORBS: sent directly from dynamic IP address
[84.114.181.75 listed in dnsbl.sorbs.net]
X-Headers-End: 1WTpSH-0002xr-PJ
Subject: Re: [Bitcoin-development] Presenting a BIP for Shamir's Secret
Sharing of Bitcoin private keys
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: Sat, 29 Mar 2014 09:21:37 -0000
--Apple-Mail=_DE1C9485-772A-4C74-9CE8-1701A8A152DB
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=us-ascii
Matt, could you expand on use cases for which you see Shamir's Secret =
Sharing as the best tool for the job? In particular, when do you see =
that it would be superior to simply going with multisig in the first =
place? Perhaps you see these as complimentary approaches, toward defense =
in depth? In any case, the Motivation and Rationale sections of the BIP =
in its current form are silent on these questions.
On Mar 29, 2014, at 9:05 AM, Matt Whitlock <bip@mattwhitlock.name> =
wrote:
> Abstract: A method is described for dividing a Bitcoin private key =
into shares in a manner such that the key can be reconstituted from any =
sufficiently large subset of the shares but such that individually the =
shares do not reveal any information about the key. This method is =
commonly known as Shamir's Secret Sharing Scheme. Additionally, an =
encoding methodology is proposed to standardize transmission and storage =
of shares.
>=20
> Complete BIP: =
https://github.com/whitslack/btctool/blob/bip/bip-xxxx.mediawiki
>=20
> I am looking to have this BIP assigned a number and added to the =
bitcoin/bips repository. I invite any comments, questions, or =
suggestions.
>=20
> =
--------------------------------------------------------------------------=
----
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
--Apple-Mail=_DE1C9485-772A-4C74-9CE8-1701A8A152DB
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename=signature.asc
Content-Type: application/pgp-signature;
name=signature.asc
Content-Description: Message signed with OpenPGP using GPGMail
-----BEGIN PGP SIGNATURE-----
Comment: GPGTools - http://gpgtools.org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=pCcb
-----END PGP SIGNATURE-----
--Apple-Mail=_DE1C9485-772A-4C74-9CE8-1701A8A152DB--
|
