Re: [Bitcoin-development] Floating fees and SPV clients

2013-12-03 Thread Quinn Harris
The merchant wants to include a fee to ensure the transaction is confirmed which is dependent on the fee per kilobyte, but they don't want to pay unexpectedly high fees. So what about including a min_fee_per_kilobyte and a max_fee in PaymentDetails describing what fees the merchant will pay. T

Re: [Bitcoin-development] Possible Solution To SM Attack

2013-11-05 Thread Quinn Harris
On 11/05/2013 08:03 PM, Drak wrote: On 5 November 2013 22:07, Quinn Harris <mailto:btc...@quinnharris.me>> wrote: I don't think choosing the block with the lowest hash is the best option. The good and bad miners have an equal probability of finding a lower ha

Re: [Bitcoin-development] Possible Solution To SM Attack

2013-11-05 Thread Quinn Harris
I don't think choosing the block with the lowest hash is the best option. The good and bad miners have an equal probability of finding a lower hash. But after Alice finds a block she can easily determine the probability that someone else will find a lower hash value that meets the difficulty

Re: [Bitcoin-development] Double Spend Notification

2013-05-21 Thread Quinn Harris
What if a transaction is tagged as eligible for replace by fee possibly using the lock_time (0xFFFE) so the parties involved can decide which approach works best for them. If the receiving side doesn't see the type of transaction they want they consider it invalid. The payment protocol ca

Re: [Bitcoin-development] Double Spend Notification

2013-05-20 Thread Quinn Harris
long as we haven't heard them too many times before. On 21 May 2013 10:45, Quinn Harris <mailto:btc...@quinnharris.me>> wrote: The current BitCoin implementation is subject to relatively easy double spend attack for 0 confirmation payments. Yet 0 confirmation paymen

[Bitcoin-development] Double Spend Notification

2013-05-20 Thread Quinn Harris
The current BitCoin implementation is subject to relatively easy double spend attack for 0 confirmation payments. Yet 0 confirmation payments are needed for typical in person transactions like most purchases at a local business. Notably, it is easy to transmit two transactions from the same ou

Re: [Bitcoin-development] Modularizing Bitcoin

2013-05-19 Thread Quinn Harris
Could this modularization effort lead to a special compiled bitcoind simulator that runs many virtual instances of a node on the same system (possibly same process)? The simulator would cache crypto computation results (ECDSA, SSH-256) to significantly speed up processing transactions and block