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From: Andreas Schildbach <andreas@schildbach.de>
To: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] Payment Protocol for Face-to-face Payments
Date: Thu, 20 Mar 2014 09:09:39 +0100	[thread overview]
Message-ID: <lge7nk$3mf$2@ger.gmane.org> (raw)
In-Reply-To: <CAJHLa0N4J_Z907+D0ENSNKfNAW2N=7Jf4JzSCO=SU558GtGTzA@mail.gmail.com>

Afaik, BIP73 needs an external server (the web server).


On 03/20/2014 04:31 AM, Jeff Garzik wrote:
> Take a look at BIP 73:
> https://github.com/bitcoin/bips/blob/master/bip-0073.mediawiki
> 
> 
> 
> 
> On Wed, Mar 19, 2014 at 10:22 PM, Alex Kotenko <alexykot@gmail.com
> <mailto:alexykot@gmail.com>> wrote:
> 
>     Hi Andreas
> 
> 
>     I'm implementing support for BIP70 in my POS at the moment, and I've
>     just realized that with options you're proposing usecase I'm looking
>     for is not covered.
> 
>     Right now, before BIP70, I'm sending BIP21 URI via NFC or QR code,
>     and I need to still be able to use it for backwards compatibility.
>     But at the same time I want to be able to support BIP70. And also I
>     want to avoid using external servers, the concept of my POS is that
>     everything is happening between just payer's phone and payee's POS
>     device. This means that BIP72 HTTP(S) link inside Bitcoin URI is not
>     suitable for me. 
> 
>     You're also offering an option to include Base43 encoded PR body
>     right inside the Bitcoin URI, but in a way that is not backwards
>     compatible with BIP21. 
> 
>     In the end this all means that there is no way for me to at the same
>     time keep backwards compatibility with all wallets not supporting
>     NFC and BIP70 (all other wallets right now), and keep things inside
>     POS without need for external servers. 
> 
>     I understand your intention behind base43 encoding and noncompatible
>     URI - you want to make most possible use of QR codes. But I wonder -
>     did you compare this base43 to base64 encoded request in a binary QR
>     code format? How much do we actually win in total bytes capacity at
>     a price of noncompatibility and increased complexity?
> 
>     And also maybe we can extend BIP72 to include encoded payment
>     request in the URL directly in a backwards compatible way?
> 
> 
>     Best regards, 
>     Alex Kotenko
> 
> 
>     2014-03-02 11:50 GMT+00:00 Mike Hearn <mike@plan99.net
>     <mailto:mike@plan99.net>>:
> 
>         Thanks Andreas.
> 
>         For BIP standardisation, I think the VIEW intent seems like an
>         obvious one. Bluetooth support probably should come later
>         if/when we put encryption/auth on the RFCOMM link (probably SSL).
> 
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> 
> 
> -- 
> Jeff Garzik
> Bitcoin core developer and open source evangelist
> BitPay, Inc.      https://bitpay.com/
> 
> 
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  reply	other threads:[~2014-03-20  8:10 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-27 11:59 [Bitcoin-development] Payment Protocol for Face-to-face Payments Andreas Schildbach
2014-01-27 13:11 ` Mike Hearn
2014-01-27 18:18   ` Andreas Schildbach
2014-01-27 18:34     ` Mike Hearn
2014-01-27 20:53     ` [Bitcoin-development] Experiment with linking payment requests via href Andreas Schildbach
2014-01-27 21:47       ` Mike Hearn
2014-01-27 17:11 ` [Bitcoin-development] Payment Protocol for Face-to-face Payments Jeremy Spilman
2014-01-27 17:39   ` Andreas Schildbach
2014-01-27 18:18     ` Jeremy Spilman
2014-01-27 20:34   ` Roy Badami
2014-01-29 14:57     ` Christophe Biocca
2014-01-30 10:46 ` Andreas Schildbach
2014-01-30 10:50   ` Mike Hearn
2014-02-07 23:15   ` Andreas Schildbach
2014-03-02  9:47 ` Andreas Schildbach
2014-03-02 11:50   ` Mike Hearn
2014-03-20  2:22     ` Alex Kotenko
2014-03-20  3:31       ` Jeff Garzik
2014-03-20  8:09         ` Andreas Schildbach [this message]
2014-03-20 10:36           ` Mike Hearn
2014-03-20 12:12             ` Adam Back
2014-03-20 12:20               ` Mike Hearn
2014-03-20 17:31               ` Jeff Garzik
2014-03-20 17:42                 ` Alex Kotenko
2014-03-20 18:01                   ` Jeff Garzik
2014-03-21 10:28                 ` Andreas Schildbach
2014-03-21 13:59                   ` Alex Kotenko
2014-03-22 16:35                     ` Jeff Garzik
2014-03-22 16:45                       ` Mike Hearn
2014-03-22 16:55                       ` Mark Friedenbach
2014-03-22 17:24                         ` Jeff Garzik
2014-03-22 17:30                           ` Mike Hearn
2014-03-23  3:47                             ` Alex Kotenko
2014-03-21 10:25               ` Andreas Schildbach
2014-03-21 10:59                 ` Adam Back
2014-03-21 11:08                   ` Mike Hearn
2014-03-21 11:33                     ` Mike Hearn
2014-03-21 12:25                       ` Adam Back
2014-03-21 13:07                         ` Mike Hearn
2014-03-20 18:20             ` Alex Kotenko
2014-03-20 18:31               ` Mike Hearn
2014-03-20 18:50                 ` Alex Kotenko
2014-03-20 21:52                 ` Roy Badami
2014-03-20 23:02                   ` Mike Hearn
2014-03-26 22:48                     ` Roy Badami
2014-03-26 22:56                       ` Mike Hearn
2014-03-26 23:20                         ` Andreas Schildbach
2014-03-27 10:08                           ` Mike Hearn
2014-03-27 13:31                             ` vv01f
2014-06-30 19:26                               ` Alex Kotenko
2014-07-01  8:18                                 ` Mike Hearn
2014-07-01  9:48                                   ` Andreas Schildbach
2014-07-01 10:42                                     ` Michael Wozniak
2014-07-01 13:03                                       ` Alex Kotenko
2014-07-01 14:59                                         ` Andreas Schildbach
2014-07-01 15:07                                           ` Michael Wozniak
2014-07-01 15:39                                             ` Andreas Schildbach
2014-07-01 17:18                                               ` Alex Kotenko
2014-07-01 17:59                                                 ` Mike Hearn
2014-07-02  8:49                                                   ` Alex Kotenko
2014-03-21 10:43                   ` Andreas Schildbach
2014-03-20  8:08       ` Andreas Schildbach
2014-03-20 16:14         ` Alex Kotenko
2014-03-21  9:47           ` Andreas Schildbach
2014-03-21 13:54             ` Alex Kotenko
2014-03-21 14:51               ` Andreas Schildbach
2014-03-21 15:38                 ` Alex Kotenko
2014-03-21 15:20               ` Andreas Schildbach
2014-03-21 15:24                 ` Mike Hearn

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