Thanks for references. Yeah, I don't need X509 signing (if I could use certificates, I wouldn't need to include PR in the URL in the first place).
I presume you used "BITCOIN:-<payment request>" instead of "bitcoin:?r=somescheme://<payment request>" to make it more compact. I also tried to look up Base43, but I could not find any info on how it is specifically optimized for QR codes. Could you enlighten me? > On 26 Feb 2015, at 10:32, Andreas Schildbach <andr...@schildbach.de> wrote: > > 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? >> ------------------------------------------------------------------------------ >> Dive into the World of Parallel Programming The Go Parallel Website, >> sponsored >> by Intel and developed in partnership with Slashdot Media, is your hub for >> all >> things parallel software development, from weekly thought leadership blogs to >> news, videos, case studies, tutorials and more. Take a look and join the >> conversation now. http://goparallel.sourceforge.net/ >> > > ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
