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 <gcbd-bitcoin-development@m.gmane.org>)
id 1WTa8l-0005Xt-G8 for bitcoin-development@lists.sourceforge.net;
Fri, 28 Mar 2014 17:00:23 +0000
Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of m.gmane.org
designates 80.91.229.3 as permitted sender)
client-ip=80.91.229.3;
envelope-from=gcbd-bitcoin-development@m.gmane.org;
helo=plane.gmane.org;
Received: from plane.gmane.org ([80.91.229.3])
by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256)
(Exim 4.76) id 1WTa8e-00089h-1f
for bitcoin-development@lists.sourceforge.net;
Fri, 28 Mar 2014 17:00:23 +0000
Received: from list by plane.gmane.org with local (Exim 4.69)
(envelope-from <gcbd-bitcoin-development@m.gmane.org>)
id 1WTa8W-0001Rd-GN for bitcoin-development@lists.sourceforge.net;
Fri, 28 Mar 2014 18:00:08 +0100
Received: from f052145073.adsl.alicedsl.de ([78.52.145.73])
by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
id 1AlnuQ-0007hv-00 for <bitcoin-development@lists.sourceforge.net>;
Fri, 28 Mar 2014 18:00:08 +0100
Received: from andreas by f052145073.adsl.alicedsl.de with local (Gmexim 0.1
(Debian)) id 1AlnuQ-0007hv-00
for <bitcoin-development@lists.sourceforge.net>;
Fri, 28 Mar 2014 18:00:08 +0100
X-Injected-Via-Gmane: http://gmane.org/
To: bitcoin-development@lists.sourceforge.net
From: Andreas Schildbach <andreas@schildbach.de>
Date: Fri, 28 Mar 2014 17:59:52 +0100
Message-ID: <lh49pp$4bc$1@ger.gmane.org>
References: <CANEZrP0AwR3WgHfwYWcrC9Z_MHPDwymWXAQwp7D8XZ+o2FsK8g@mail.gmail.com> <lh3m7i$v18$1@ger.gmane.org>
<CANEZrP3zBFs=JpJi6eazTvrTaRX6XCJLu-zrraE6bezYW7b9pQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Complaints-To: usenet@ger.gmane.org
X-Gmane-NNTP-Posting-Host: f052145073.adsl.alicedsl.de
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
rv:24.0) Gecko/20100101 Thunderbird/24.4.0
In-Reply-To: <CANEZrP3zBFs=JpJi6eazTvrTaRX6XCJLu-zrraE6bezYW7b9pQ@mail.gmail.com>
X-Enigmail-Version: 1.5.2
X-Spam-Score: -0.8 (/)
X-Spam-Report: Spam Filtering performed by mx.sourceforge.net.
See http://spamassassin.org/tag/ for more details.
-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/,
no trust [80.91.229.3 listed in list.dnswl.org]
-1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for
sender-domain
-0.0 SPF_HELO_PASS SPF: HELO matches SPF record
1.1 DKIM_ADSP_ALL No valid author signature,
domain signs all mail
-0.0 SPF_PASS SPF: sender matches SPF record
-0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay
domain
X-Headers-End: 1WTa8e-00089h-1f
Subject: Re: [Bitcoin-development] BIP 70 refund field
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, 28 Mar 2014 17:00:23 -0000
Ok, why don't fix this in the spec for now, by defining a fixed expiry
time. In the EU, most products are covered by a 2 years warranty, so it
seems appropriate to pick 2.5 years (30 months) -- allowing for some
time to ship the product back and forth.
On 03/28/2014 12:31 PM, Mike Hearn wrote:
> On Fri, Mar 28, 2014 at 12:25 PM, Andreas Schildbach
> <andreas@schildbach.de <mailto:andreas@schildbach.de>> wrote:
>
> However, I don't see how PaymentDetails can be an answer. None of the
> fields (other than outputs and network) can be known in advance (at the
> time of the initial payment).
>
>
> You don't need all the fields indeed, but they're mostly optional
> (except time). So for the refund you'd fill out:
>
> outputs (same as today)
> time
> expiry_time
>
> You're probably aiming for an expires field? How would you refund a
> payment after expiry?
>
>
> It'd have to be ad-hoc at that point. OK, you don't get the nice UI that
> the refund field provides. Oh well. It should be rare to get refunds
> very very late after the purchase.
>
>
> Btw. another problem is that the refund address is currently
> unprotected.
>
>
> Yes indeed as is the rest of the Payment structure. We talked about
> signing it with one of the keys that's signing the Bitcoin transaction
> as well. But it seems like a bit overkill. Usually it'll be submitted
> over HTTPS or a (secured!) Bluetooth channel though so tampering with it
> should not be possible.
>
> However this does raise the question of whether a refund should be a
> full blown PaymentRequest with optional PKI signing. Normally, I think,
> a seller does not know or care about the identity of a buyer for
> refunds, outside of their own tracking system.
>
>
> ------------------------------------------------------------------------------
>
>
>
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>
|
