From: Michael Gronager <gronager@ceptacle•com>
To: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Payment Protocol Proposal: Invoices/Payments/Receipts
Date: Tue, 27 Nov 2012 13:39:30 +0100 [thread overview]
Message-ID: <98E8A2D6-56D1-4E28-BB63-71E13382B5B8@ceptacle.com> (raw)
In-Reply-To: <CANEZrP03kSG5BYMykkW+UJiy65qPOBC7RuvKg85eLEmE3tnukQ@mail.gmail.com>
> No, the point of using X509 certs is to get a verified identity (a
> domain name) on the receipt, this is needed for multi-factor
> authentication. You can't do that without some kind of third party
> asserting to an identity.
Agree that you need a third party to verify identity. But the verification policy of sites is the job for a payment provider not a payment technology. So if you would like verification of the site you could just sign the memo using standard S/MIME - why mix it with the payment protocol?
Further, it is controversial use of the host key to use it for digital signing of documents, and not even within the policy of a host certificate as far as I recall.
The problem you are trying to tackle is that we don't have an ID solution on the internet today for this purpose. Certificates for signing messages are distributed freely and insecurely only based on temporarily having an email from within an organization, and the host certificates are meant for SSL handshakes. Funnily, any CA can issue digital certificates for email signing for any domain, even though they don't own them, and without notifying the owner. DANE actually solves this, but until then using the host certificates is unintended use, it is cryptographically a nice solution, but legally and standard-wise a hack.
/M
next prev parent reply other threads:[~2012-11-27 12:39 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-26 22:37 Gavin Andresen
2012-11-26 23:02 ` Mike Hearn
2012-11-26 23:13 ` Luke-Jr
2012-11-26 23:16 ` Mike Hearn
2012-11-26 23:19 ` Luke-Jr
2012-11-26 23:27 ` Mike Hearn
2012-11-26 23:32 ` Gregory Maxwell
2012-11-26 23:44 ` Luke-Jr
2012-11-27 0:16 ` Gregory Maxwell
2012-11-27 0:26 ` Mike Hearn
2012-11-27 0:45 ` Rick Wesson
2012-11-27 1:09 ` Gavin
2012-11-27 8:44 ` Mike Hearn
2012-11-27 0:44 ` Luke-Jr
2012-11-26 23:38 ` Rick Wesson
2012-11-26 23:52 ` Jeff Garzik
2012-11-27 0:02 ` Rick Wesson
2012-11-27 0:31 ` Luke-Jr
2012-11-27 0:37 ` Rick Wesson
2012-11-27 2:16 ` Walter Stanish
2012-11-27 2:47 ` Gregory Maxwell
2012-11-27 3:16 ` Walter Stanish
2012-11-27 3:29 ` Rick Wesson
2012-11-27 3:31 ` Walter Stanish
2012-11-27 3:54 ` Rick Wesson
2012-11-27 4:17 ` Walter Stanish
2012-11-27 8:43 ` Michael Gronager
2012-11-27 10:23 ` Mike Hearn
2012-11-27 10:42 ` Michael Gronager
2012-11-27 11:36 ` Pieter Wuille
2012-11-27 11:46 ` Michael Gronager
2012-11-27 12:03 ` Mike Hearn
2012-11-27 12:39 ` Michael Gronager [this message]
2012-11-27 14:05 ` Gavin Andresen
2012-11-27 14:26 ` Gavin Andresen
2012-11-28 13:55 ` Walter Stanish
2012-11-27 17:03 ` Andy Parkins
2012-11-27 17:14 ` Mike Hearn
2012-11-27 17:26 ` Andy Parkins
2012-11-27 18:16 ` Mike Hearn
2012-11-27 21:39 ` Gavin Andresen
2012-11-28 10:43 ` Mike Hearn
2012-11-28 12:57 ` Peter Todd
2012-11-28 14:09 ` Gavin Andresen
2012-11-28 8:33 ` Peter Todd
2012-11-28 23:36 ` Roy Badami
2012-11-29 0:30 ` Watson Ladd
2012-11-29 8:16 ` slush
2012-11-29 16:11 ` Gavin Andresen
2012-11-29 17:07 ` Roy Badami
2012-11-29 17:30 ` Gavin Andresen
2012-11-29 17:31 ` Mike Hearn
2012-11-29 18:53 ` Roy Badami
2012-12-01 19:25 ` Gavin Andresen
2012-12-03 19:35 ` Mike Koss
2012-12-03 20:59 ` Gavin Andresen
2012-12-03 21:28 ` Mike Hearn
2012-12-03 22:26 ` Roy Badami
2012-12-03 22:34 ` Jeff Garzik
2012-12-03 22:48 ` Roy Badami
2012-12-16 21:15 ` Melvin Carvalho
2012-12-17 2:18 ` Jeff Garzik
2012-12-17 8:24 ` Melvin Carvalho
2012-12-17 9:19 ` Mike Hearn
2012-12-17 9:31 ` Gary Rowe
2012-12-17 11:23 ` Melvin Carvalho
2012-12-17 17:57 ` Gavin Andresen
2012-12-20 16:53 ` Stephen Pair
2012-12-20 17:43 ` Mike Hearn
2012-12-20 19:32 ` Stephen Pair
2012-12-21 17:05 ` Stephen Pair
2012-12-24 0:38 ` Elden Tyrell
2012-12-04 17:06 ` Mike Hearn
2012-12-05 19:34 ` Gavin Andresen
2012-12-06 6:31 ` Andreas Petersson
2012-12-06 8:53 ` Mike Hearn
2012-12-06 16:56 ` Gavin Andresen
2012-12-06 17:55 ` Mike Hearn
2012-12-06 19:13 ` Gavin Andresen
2012-12-07 10:45 ` Mike Hearn
2012-12-07 11:01 ` Mike Hearn
2012-12-07 16:19 ` Gavin Andresen
2012-12-07 16:27 ` Mike Hearn
2012-12-06 18:13 ` Alan Reiner
[not found] ` <CALf2ePx5jS@mail.gmail.com>
2014-09-17 19:28 ` Vezalke
2012-12-03 21:42 ` Gregory Maxwell
2012-12-23 2:33 ` Mark Friedenbach
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