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From: Jeff Garzik <jgarzik@bitpay.com>
To: Alex Kotenko <alexykot@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>,
	Andreas Schildbach <andreas@schildbach.de>
Subject: Re: [Bitcoin-development] Payment Protocol for Face-to-face Payments
Date: Wed, 19 Mar 2014 23:31:36 -0400	[thread overview]
Message-ID: <CAJHLa0N4J_Z907+D0ENSNKfNAW2N=7Jf4JzSCO=SU558GtGTzA@mail.gmail.com> (raw)
In-Reply-To: <CALDj+BafD+6KTNcYDBEu5gNPzYozSkiC-JCxrY-PzXL2DYBRsw@mail.gmail.com>

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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> 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>:
>
>>  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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>> _______________________________________________
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>> Bitcoin-development@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>>
>>
>
>
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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  3:59 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 [this message]
2014-03-20  8:09         ` Andreas Schildbach
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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