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
|
Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191]
helo=mx.sourceforge.net)
by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76)
(envelope-from <gavinandresen@gmail.com>) id 1R9hLG-0006Bl-6Y
for bitcoin-development@lists.sourceforge.net;
Fri, 30 Sep 2011 17:57:46 +0000
Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com
designates 209.85.215.175 as permitted sender)
client-ip=209.85.215.175; envelope-from=gavinandresen@gmail.com;
helo=mail-ey0-f175.google.com;
Received: from mail-ey0-f175.google.com ([209.85.215.175])
by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128)
(Exim 4.76) id 1R9hLF-0000AL-79
for bitcoin-development@lists.sourceforge.net;
Fri, 30 Sep 2011 17:57:46 +0000
Received: by eya25 with SMTP id 25so1782732eya.34
for <bitcoin-development@lists.sourceforge.net>;
Fri, 30 Sep 2011 10:57:39 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.223.45.140 with SMTP id e12mr11689544faf.27.1317405458935;
Fri, 30 Sep 2011 10:57:38 -0700 (PDT)
Received: by 10.152.25.105 with HTTP; Fri, 30 Sep 2011 10:57:38 -0700 (PDT)
In-Reply-To: <CAAS2fgQG7iFPqSGNdCPCm=b11oHfsDW_d3NM472PJuvk-crjcA@mail.gmail.com>
References: <CABsx9T2QzafV-uzn7yL01gs2mrzLaP0FCgjt_O--Ldw+s-Xm9w@mail.gmail.com>
<CANEZrP2fqvivhnjSDsLiYdYJ09E7y+=EmsVH3BvLmA4tGri7bQ@mail.gmail.com>
<CAAS2fgRCyppz27-_UhjLnK3a8=DBOVMixk1COv5-uYXGa6WuxA@mail.gmail.com>
<CABsx9T1uxcyqk+Gxrkhb48moszNtCPVpKzuQdnFznr2ZtP_eiw@mail.gmail.com>
<CAAS2fgRRws5iG_oirKbgmyySZMZ4tzOC2Nq_12psqeuSH4GyDg@mail.gmail.com>
<CAAS2fgQG7iFPqSGNdCPCm=b11oHfsDW_d3NM472PJuvk-crjcA@mail.gmail.com>
Date: Fri, 30 Sep 2011 13:57:38 -0400
Message-ID: <CABsx9T0SJUNxzN90dzuTpKPxXQ8xNfOQXecftM0HN7bxN3XP_Q@mail.gmail.com>
From: Gavin Andresen <gavinandresen@gmail.com>
To: Gregory Maxwell <gmaxwell@gmail.com>,
Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Content-Type: text/plain; charset=ISO-8859-1
X-Spam-Score: -1.6 (-)
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 FREEMAIL_FROM Sender email is commonly abused enduser mail provider
(gavinandresen[at]gmail.com)
-0.0 SPF_PASS SPF: sender matches SPF record
-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from
author's domain
0.1 DKIM_SIGNED Message has a DKIM or DK signature,
not necessarily valid
-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
0.0 AWL AWL: From: address is in the auto white-list
X-Headers-End: 1R9hLF-0000AL-79
Subject: Re: [Bitcoin-development] Multisignature transations
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, 30 Sep 2011 17:57:46 -0000
RE: 2 of 3 being far more useful:
So create a clean pull request, unit tests, and test plan for an
"IsStandard" 2-of-3 transaction, either using CHECKMULTISIG or
groffers proposal:
0
OVER 2SWAP CHECKSIG SWAP HASH160 {pk1hash} EQUAL BOOLAND ADD
OVER 2SWAP CHECKSIG SWAP HASH160 {pk2hash} EQUAL BOOLAND ADD
OVER 2SWAP CHECKSIG SWAP HASH160 {pk3hash} EQUAL BOOLAND ADD
2 GREATERTHANOREQUAL
The low-level support is relatively easy, reporting these transactions
in listtransactions and figuring out if or how to report them in your
wallet balance is tricky.
I generated and then spent three multisig transactions on testnet:
http://blockexplorer.com/testnet/block/0000000000cfe382f690777e3b52ea255717122465db6fcfd80efdf2d0080d8b
Code I used to send them is:
https://github.com/gavinandresen/bitcoin-git/tree/multisig_testing
(that code is NOT intended for mainline bitcoin, I just needed a way
of testing the new transactions).
--
--
Gavin Andresen
|