Re: [Bitcoin-development] New BIP: protocol for multisignature payments

2015-01-31 Thread Mike Hearn
Hi Martin, You're on the right lines. Your writeup is pretty similar to the high level overview given here though: https://en.bitcoin.it/wiki/Contracts#Example_2:_Escrow_and_dispute_mediation To make 2-of-3 dispute mediation works requires implementing a wallet that supports it, and the tools

Re: [Bitcoin-development] New BIP: protocol for multisignature payments

2015-01-31 Thread Mike Hearn
I could look at implementing it someday, but now I'd like to receive feedback from community. IMO it's better to pair a protocol spec with an implementation. For one, it can show up issues in the design you didn't think of. For another, implementation is a lot more work than speccing out a

Re: [Bitcoin-development] Is there a way to estimate the maximum number of transactions per minute Bitcoin can handle as it is today?

2015-01-31 Thread Mike Hearn
Alipay handled up to 2.85 million transactions per minute, and 54 percent of its transactions are made via mobile device. I know China is a very big place but even so - 47,500 transactions per second would be almost quintiple what Visa handles across the entire world. With only 300 million

Re: [Bitcoin-development] New BIP: protocol for multisignature payments

2015-01-31 Thread Martin Habovštiak
I know about that wiki page. I just wanted to design protocol which would make it easier in practice. (now it would be done manually) I could look at implementing it someday, but now I'd like to receive feedback from community. 2015-01-31 19:19 GMT+02:00 Mike Hearn m...@plan99.net: Hi Martin,

Re: [Bitcoin-development] Is there a way to estimate the maximum number of transactions per minute Bitcoin can handle as it is today?

2015-01-31 Thread Angel Leon
My concerns come from 2 projects that could easily raise the current transaction volume 10x daily in the short term, perhaps even 100x a year from now after the media blows it out. Think legal bittorrent file sales: ebooks, indie music (albums and singles), films, art, stock photography. Think

Re: [Bitcoin-development] New BIP: protocol for multisignature payments

2015-01-31 Thread Gavin Andresen
I agree- standards should be descriptive (here is how this thing I did works) and NOT proscriptive (here's what I think will work, lets all try to do it this way.). On Sat, Jan 31, 2015 at 2:07 PM, Mike Hearn m...@plan99.net wrote: I could look at implementing it someday, but now I'd like to

Re: [Bitcoin-development] New BIP: protocol for multisignature payments

2015-01-31 Thread Martin Habovštiak
I didn't consider that, thank you for feedback! I will try to find some time for implementing it. I'll write again then. 2015-01-31 23:50 GMT+02:00 Gavin Andresen gavinandre...@gmail.com: I agree- standards should be descriptive (here is how this thing I did works) and NOT proscriptive (here's

Re: [Bitcoin-development] Proposal to address Bitcoin malware

2015-01-31 Thread Natanael
Den 31 jan 2015 23:17 skrev Brian Erdelyi brian.erde...@gmail.com: Hello all, The number of incidents involving malware targeting bitcoin users continues to rise. One category of virus I find particularly nasty is when the bitcoin address you are trying to send money to is modified before the

Re: [Bitcoin-development] Proposal to address Bitcoin malware

2015-01-31 Thread Natanael
Den 1 feb 2015 00:05 skrev Brian Erdelyi brian.erde...@gmail.com: See vanitygen. Yes, 8 characters can be brute forced. Thank you for this reference. Interesting to see that there is a tool to generate a vanity bitcoin address. I am still researching viruses that are designed to manipulate

Re: [Bitcoin-development] Proposal to address Bitcoin malware

2015-01-31 Thread Brian Erdelyi
See vanitygen. Yes, 8 characters can be brute forced. Thank you for this reference. Interesting to see that there is a tool to generate a vanity bitcoin address. I am still researching viruses that are designed to manipulate a bitcoin address. I suspect they are primitive in that they use

Re: [Bitcoin-development] Proposal to address Bitcoin malware

2015-01-31 Thread Natanael
Den 1 feb 2015 00:37 skrev Natanael natanae...@gmail.com: To bruteforce 8 decimals, on average you need (10^8)/2 = 50 000 000 tries. log(50M)/log(2) = 25.6 bits of entropy. Oops. Used the wrong number in the entropy calculation. Add one bit, the division by 2 wasn't supposed to be used in the

[Bitcoin-development] Proposal to address Bitcoin malware

2015-01-31 Thread Brian Erdelyi
Hello all, The number of incidents involving malware targeting bitcoin users continues to rise. One category of virus I find particularly nasty is when the bitcoin address you are trying to send money to is modified before the transaction is signed and recorded in the block chain. This

Re: [Bitcoin-development] Is there a way to estimate the maximum number of transactions per minute Bitcoin can handle as it is today?

2015-01-31 Thread Wladimir
On Fri, 30 Jan 2015, Nick Simpson wrote: This has been discussed before. I believe most people don't expect Bitcoin to replace all of the various methods of payment.  Scalability is always a concern, just not to the level of  Alipay this year (or the next or the next for that matter.) Yes,