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
|
Return-Path: <gmaxwell@gmail.com>
Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
[172.17.192.35])
by mail.linuxfoundation.org (Postfix) with ESMTPS id EDCD271F
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 6 Apr 2017 21:38:38 +0000 (UTC)
X-Greylist: whitelisted by SQLgrey-1.7.6
Received: from mail-vk0-f45.google.com (mail-vk0-f45.google.com
[209.85.213.45])
by smtp1.linuxfoundation.org (Postfix) with ESMTPS id CB312255
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 6 Apr 2017 21:38:33 +0000 (UTC)
Received: by mail-vk0-f45.google.com with SMTP id z204so56263454vkd.1
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 06 Apr 2017 14:38:33 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
h=mime-version:sender:in-reply-to:references:from:date:message-id
:subject:to; bh=muoqrTK5m3bFLFR8RATAgzF7yTuxnyt2dhpsW+BzajE=;
b=SMQPUegLrOcAaUp7N+QrITPHCuK2NJ8MEYU0hsBBpLpxzP8JMMAG+sQGFd+qdkxJ3N
2VvxUiguCJwsBZxA3J7gEP/5q1nK2VUXvYVEsyu3HZ5bK5n9eIhe72kB35dvBSkwQA6V
BJ8NcqrO8gHDGLIrVXE19/ubP7T9ke0IWNe54pJB8hDHoEtYL4ks2tEK+0vFiMc9X2ud
dh2dxBNDbalQvdWdedf5g3vOLg67eE2t5Ms5rcov8gkcWFhJCwJbQyhRnJEimseEuiM2
SbooXPA9oqbY9utrR0MIceKdP+glWb7i53UBBvxF1M2/VB10v1h6T6D+wdKKUMmRKoN2
J8oA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-gm-message-state:mime-version:sender:in-reply-to:references:from
:date:message-id:subject:to;
bh=muoqrTK5m3bFLFR8RATAgzF7yTuxnyt2dhpsW+BzajE=;
b=aLYBHW7xnNE3m9hN8rrjHvih9gUw2kVQ9uXb9hHh3BPXRAatRbLyUP2oLS+Z8MMqZb
LjacWGCJHnDXX+BRVNAOG8iRjJPSRl/qdaS+zRHONKTdrFnehKdRh6Sl5sLhsRNMRjHE
NroT8ADT6v2TAgbSB6LQaN02GoxDp2my3c8XNboBOBOPqGUK1Z8YVseyKUJ0REijr56D
3QnEM0frGDrjhupc4dGJiy3MexPt2FMioJrE+gUyGeHPQoyPB9CuhtKWIXUmz1+BLFMS
LSA/AA/ZPml2QLIaYUE9lVZ51b0R9Fen9YKCyfi5Yr/Wc0UBp7bQxhmOHDggDy4avCM+
XzfA==
X-Gm-Message-State: AFeK/H3QbfwSBfXAPugjKvQg/MBILoCaRuYqObH8BpNO+ZzB3xCEEOA61VbXe7/fMn+k0uts3QqVC1mqq2bDDA==
X-Received: by 10.176.65.196 with SMTP id 62mr19808145uap.82.1491514711826;
Thu, 06 Apr 2017 14:38:31 -0700 (PDT)
MIME-Version: 1.0
Sender: gmaxwell@gmail.com
Received: by 10.103.152.203 with HTTP; Thu, 6 Apr 2017 14:38:31 -0700 (PDT)
In-Reply-To: <CAAS2fgR84898xD0nyq7ykJnB7qkdoCJYnFg6z5WZEUu0+-=mMA@mail.gmail.com>
References: <CAAS2fgR84898xD0nyq7ykJnB7qkdoCJYnFg6z5WZEUu0+-=mMA@mail.gmail.com>
From: Gregory Maxwell <greg@xiph.org>
Date: Thu, 6 Apr 2017 21:38:31 +0000
X-Google-Sender-Auth: DMaI17vR-mHyfJ14K55z0Xd2A-A
Message-ID: <CAAS2fgSTrMjKZVpL4wRidnzTCC9O3OEF=oCnROf1pggz2cDgJA@mail.gmail.com>
To: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Content-Type: text/plain; charset=UTF-8
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,
DKIM_VALID, FREEMAIL_FROM,
RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
smtp1.linux-foundation.org
Subject: Re: [bitcoin-dev] BIP proposal: Inhibiting a covert attack on the
Bitcoin POW function
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/>
List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org>
List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe>
X-List-Received-Date: Thu, 06 Apr 2017 21:38:39 -0000
On Wed, Apr 5, 2017 at 9:37 PM, Gregory Maxwell <greg@xiph.org> wrote:
> each block MUST either contain a BIP-141 segwit commitment or a
> correct WTXID commitment with ID 0xaa21a9ef.
It was just pointed out to me that the proposed ID (which I just
selected to be above the segwit one) collides with one chosen in
another non-BIP proposal. This wasn't intentional, and I'll happily
change the value when I update the document.
|
