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 Tom Harding
On 1/31/2015 5:11 AM, Wladimir wrote: > The block chain is a single channel broadcasted over the entire world, > and I don't believe it will ever be possible nor desirable to > broadcast all the world's transactions over one channel. > > The everyone-validates-everything approach doesn't scale. I

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

2015-01-31 Thread Natanael
Den 1 feb 2015 00:37 skrev "Natanael" : > > 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 entropy calculati

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

2015-01-31 Thread Natanael
Den 1 feb 2015 00:05 skrev "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 addr

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 us

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 : > I agree- standards should be descriptive ("here is how this thing I did > works") and NOT proscriptive ("here's what I think will w

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

2015-01-31 Thread Natanael
Den 31 jan 2015 23:17 skrev "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 si

[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 behavi

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 wrote: > I could look at implementing it someday, but now I'd like to receive >> f

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 p

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] 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 : > Hi Martin, > > You're on th

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 me

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 milli

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,