Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1WLbRz-00032b-9Y for bitcoin-development@lists.sourceforge.net; Thu, 06 Mar 2014 16:47:15 +0000 Received-SPF: pass (sog-mx-3.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-3.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1WLbRw-0003np-Vs for bitcoin-development@lists.sourceforge.net; Thu, 06 Mar 2014 16:47:15 +0000 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1WLbRp-0004rr-KA for bitcoin-development@lists.sourceforge.net; Thu, 06 Mar 2014 17:47:05 +0100 Received: from f052204080.adsl.alicedsl.de ([78.52.204.80]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 06 Mar 2014 17:47:05 +0100 Received: from andreas by f052204080.adsl.alicedsl.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 06 Mar 2014 17:47:05 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: bitcoin-development@lists.sourceforge.net From: Andreas Schildbach Date: Thu, 06 Mar 2014 17:46:53 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: f052204080.adsl.alicedsl.de User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 In-Reply-To: X-Spam-Score: -0.4 (/) 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 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record X-Headers-End: 1WLbRw-0003np-Vs Subject: Re: [Bitcoin-development] Instant / contactless payments X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Mar 2014 16:47:15 -0000 > Not sure if you've seen it, but here is how we do NFC right > now http://www.youtube.com/watch?v=DGOMIG9JUY8 with XBTerminal. Thanks for the video! It's always good to see these things in action so you can start believing in it. > For now this is just an NDEF URI message with Bitcoin URI inside, and > then transaction itself propagated to the network by the phone using > it's own Internet connection. Far not ideal, but even this is supported > only by Andreas' Wallet, so we cannot move ahead alot really until other > wallets will have some support in this area. Supporting Bluetooth is optional in the sense that if a wallet should not support it, you will still receive the transaction via the P2P network. So I'd say definately go for Bluetooth. > As you see - it's taking just few seconds, most of which is manual > payment confirmation. I wonder about the receipt step -- are you generating a PDF on device and sending it via NFC? This is something that could be supported by the BIP70 payment protocol. We should try to avoid the second tap, its not intuitive. > And btw, have you been to London > lately? Oyster readers now accept contactless cards directly along with > Oyster cards itself. Contactless cards? Last I was to London, the Oyster card was already contactless. Have there ever been magnet-strip-based Oyster cards? > I wonder if eventually in future we could add > bitcoin support into that system directly, without hardware replacements. Neat thought (-: