Re: [Bitcoin-development] Hard fork via miner vote

2015-06-20 Thread David Vorick
I see it as unreasonable to expect all nodes to upgrade during a hardfork. If you are intentionally waiting for that to happen, it's possible for an extreme minority of nodes to hold the rest of the network hostage by simply refusing to upgrade. However you want nodes to be able to protest until it

Re: [Bitcoin-development] New attack identified and potential solution described: Dropped-transaction spam attack against the block size limit

2015-06-19 Thread David Vorick
I disagree that 11 is a reasonable value. That's less than 2 hours, which probably wouldn't even last peak trading hours. You want the mempool to be big enough that low-fee transactions introduced during peak hours are still around when there's much less activity (it maximizes miner profit and prev

Re: [Bitcoin-development] [softfork proposal] Strict DER signatures

2015-01-21 Thread David Vorick
Seems like a good change to me. On Wed, Jan 21, 2015 at 7:32 PM, Rusty Russell wrote: > Pieter Wuille writes: > > Hello everyone, > > > > We've been aware of the risk of depending on OpenSSL for consensus > > rules for a while, and were trying to get rid of this as part of BIP > > 62 (malleabil

Re: [Bitcoin-development] Merge mining

2014-01-04 Thread David Vorick
ining against dogecoin, you almost certainly have a huge vested interest in cryptocurrencies doing well. By attacking dogecoin successfully, you'll cast doubt on the entire cryptocurrency ecosystem and hurt yourself in the process. On Sat, Jan 4, 2014 at 5:05 AM, Jorge Timón wrote: > On 1/4/14,

Re: [Bitcoin-development] Merge mining

2014-01-04 Thread David Vorick
If you have the resources to attack one of the bigger altcoins, you probably have a significant investment in the cryptocurrency space, and a significant interest in protecting it. Compromising even something like dogecoin would cause a lot of questions to be raised and likely drop the value of bit

Re: [Bitcoin-development] Double Spend Notification

2013-05-21 Thread David Vorick
I've been wondering why a blockchain is necessary at all. Ripple doesn't have one (I haven't looked closely at their implementation but it seems reasonable to go without one). When you do blockchain based transaction confirmations, you give full authority to the miner that finds the transaction bl