Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Eric Voskuil
On 02/23/2015 09:53 PM, Andy Schroder wrote: I was saying provide a public key via NFC (or a public key fingerprint and then send the full public key over bluetooth). Instead of providing a new public key on each tap, why can't the payee just stop accepting connections from new parties on that

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Mike Hearn
Does this not also require the BT publication of the script for a P2SH address? You mean if the URI you're serving is like this? bitcoin:3aBcD?bt= Yes it would. I guess then, the server would indicate both the script, and the key within that script that it wanted to use. A

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Eric Voskuil
On 02/24/2015 11:49 AM, Andy Schroder wrote: Hello, I think were talking about a lot of the same things. There is one key piece of information that I was not thinking about until you made it clear. Why the payee needs to identify the payer. In my fuel pump application, they really don't, so

Re: [Bitcoin-development] Request for comments on hybrid PoW/PoS enhancement for Bitcoin

2015-02-25 Thread Chris Page
Hi Mike, Thanks for the feedback and letting me know that my earlier emails fell victim to spam. My scheme might be better because it would add further incentives for running full nodes. A full node can be run on even a cheap laptop. In my experience, once a person new to bitcoin accepts it as

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Andy Schroder
Hello, I think were talking about a lot of the same things. There is one key piece of information that I was not thinking about until you made it clear. Why the payee needs to identify the payer. In my fuel pump application, they really don't, so I wasn't thinking closely about these other

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Andy Schroder
Andy Schroder On 02/23/2015 10:09 AM, Jan Vornberger wrote: Hey! On Sun, Feb 22, 2015 at 05:37:16PM -0500, Andy Schroder wrote: It's maybe not a bad idea for the wallet to try all payment_url mechanisms in parallel. Should we add this as a recommendation to wallets in TBIP75? It doesn't

Re: [Bitcoin-development] Request for comments on hybrid PoW/PoS enhancement for Bitcoin

2015-02-25 Thread Jameson Lopp
This is an interesting idea from the standpoint of trying to incentivize people to run nodes, though from a high level it seems to just be adding complexity to the current process by which nodes 'endorse' blocks. When a node receives and validates a block it then informs its peers of the new

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Jan Vornberger
On Tue, Feb 24, 2015 at 01:14:43AM -0500, Andy Schroder wrote: I've had similar issues where the NFC device has to be disconnected and reconnected. I've got lots of error checking in my code on the NFC device, which helps, but still has problems sometimes. I've found if I limit how quickly a

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Andy Schroder
We can change resource to Session ID if you want. I think the URL scheme should be: bitcoin:[address]?r=bt:macs=PublicKey But when connecting to the mac, the client indicates the SessionID in the header, and as you say, SessionID is derived in some way from PublicKey. This is a slightly

Re: [Bitcoin-development] Request for comments on hybrid PoW/PoS enhancement for Bitcoin

2015-02-25 Thread Chris Page
Thanks for the feedback and questions. Answers inline. On Tue, Feb 24, 2015 at 9:54 AM, Jameson Lopp jameson.l...@gmail.com wrote: This is an interesting idea from the standpoint of trying to incentivize people to run nodes, though from a high level it seems to just be adding complexity to

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Eric Voskuil
The list appears dead, this is a test. e signature.asc Description: OpenPGP digital signature -- Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with

[Bitcoin-development] BCF 2012 Miner vote

2015-02-25 Thread Gregory Maxwell
It would appear that the Bitcoin Foundation has decided that their next two seats would be decided by miners. (More information available at: https://bitcoinfoundation.org/forum/index.php?/topic/1255-blockchain-voting/#entry13453 ) Unfortunately, they seem to have not provided the software

Re: [Bitcoin-development] Providing Payment Request within URI

2015-02-25 Thread Mike Hearn
Andreas' wallet supports this, but don't do it. Payment requests can get larger in future even without signing. Exploding the capacity of a QR code is very easy. Instead, take a look at the Bluetooth/NFC discussion happening in a different thread. On Tue, Feb 24, 2015 at 4:58 PM, Oleg Andreev

Re: [Bitcoin-development] Bitcoin at POS using BIP70, NFC and offline payments - implementer feedback

2015-02-25 Thread Eric Voskuil
On 02/24/2015 02:50 PM, Andy Schroder wrote: We can change resource to Session ID if you want. I think the URL scheme should be: bitcoin:[address]?r=bt:macs=PublicKey This is a question of proper URL semantics, as applied to the bt scheme. From rfc3986 [Uniform Resource Identifier (URI):

Re: [Bitcoin-development] Request for comments on hybrid, PoW/PoS enhancement for Bitcoin

2015-02-25 Thread Andrew Lapp
Having stakeholders endorse blocks has, according to you, the benefits of increasing the number of full nodes and making a 51% attack more expensive. It seems to me it would have the opposite effects and other negative side effects. Any stakeholder that has won could just be running an SPV

Re: [Bitcoin-development] Request for comments on hybrid, PoW/PoS enhancement for Bitcoin

2015-02-25 Thread Chris Page
I definitely need to have an deeper understanding of that paper before proceeding. Thanks for the reference! On Wed, Feb 25, 2015 at 4:58 PM, Andrew Lapp la...@purdue.edu wrote: Having stakeholders endorse blocks has, according to you, the benefits of increasing the number of full nodes and