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From: Andreas Schildbach <andreas@schildbach•de>
To: bitcoin-development@lists•sourceforge.net
Subject: Re: [Bitcoin-development] Providing Payment Request within URI
Date: Thu, 26 Feb 2015 10:32:15 +0100	[thread overview]
Message-ID: <54EEE81F.1000602@schildbach.de> (raw)
In-Reply-To: <771EF431-6644-4BE4-B39C-CA73CFC18DB4@gmail.com>

Yeah, you'd be limited to simple usecases. X509 signing or lots of
outputs will make the QR code hard to scan. However, if all you want to
do is send to a custom script (without using P2SH) I invite you to have
a look at

https://github.com/schildbach/bitcoin-wallet/blob/master/wallet/src/de/schildbach/wallet/ui/InputParser.java#L86

https://github.com/schildbach/bitcoin-wallet/blob/master/wallet/src/de/schildbach/wallet/util/Qr.java#L134

https://github.com/schildbach/bitcoin-wallet/blob/master/wallet/src/de/schildbach/wallet/util/Base43.java

Basically it's "BITCOIN:-" plus the payment request in Base43 encoded
form. I picked Base43, because that's optimized for QR codes.


On 02/24/2015 04:58 PM, Oleg Andreev wrote:
> Hi,
> 
> I wonder if there is a standard way to put Payment Request data into bitcoin: URI or directly into QR code. The goal is to allow device to generate a multi-output payment request on its own, without relying on the server and x509 certificates. When scanned via QR code from, say, POS, it's pretty secure, so no additional authentication needed.
> 
> I'd like something like this: 
> 
> bitcoin:?r=data://<base64url-encoded-payment-request>
> 
> If there's no standard for that, would it be a good idea to extend BIP72 this way?
> ------------------------------------------------------------------------------
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  parent reply	other threads:[~2015-02-26  9:32 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-24 15:58 Oleg Andreev
2015-02-25 20:44 ` Mike Hearn
2015-02-26  9:32 ` Andreas Schildbach [this message]
2015-02-26  9:48   ` Oleg Andreev
     [not found]     ` <54EEF12B.2050803@schildbach.de>
2015-02-26 11:14       ` Oleg Andreev
2015-02-26 12:11         ` Andreas Schildbach

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