Re: [Bitcoin-development] Bitcoin Wallet for Android

2012-07-09 Thread Ben Reeves
combination of https://github.com/blockchain/My-Wallet and https://github.com/blockchain/My-Wallet-Integrity-Checker but I could see why that might be more of an issue for the the official site. Thank You, Ben Reeves On 9 Jul 2012, at 15:00, Gregory Maxwell wrote: > On Mon, Jul 9, 2012 at 5:21

Re: [Bitcoin-development] Duplicate transactions vulnerability

2012-03-01 Thread Ben Reeves
ll block height fix now? On Thu, Mar 1, 2012 at 2:27 PM, Gregory Maxwell wrote: > On Thu, Mar 1, 2012 at 8:09 AM, Ben Reeves wrote: >> One more thing to add. The implementation in the reference patch fixes >> the blockchain forking issue however by still allowing spent coinbases >&g

Re: [Bitcoin-development] Duplicate transactions vulnerability

2012-03-01 Thread Ben Reeves
restart and could cause problems for new clients during the initial blockchain download. Is there a reason not to disallow duplicate coinbases entirely? On Thu, Mar 1, 2012 at 10:15 AM, Ben Reeves wrote: > Yes you are right. Any fix in DisconnectBlock() has the same potential issues. > >

Re: [Bitcoin-development] Duplicate transactions vulnerability

2012-03-01 Thread Ben Reeves
also might be prudent to have a blockchain repair script ready, which checks the db for missing coinbase transactions and downloads them from another peer or block explorer if necessary. Thank You, Ben Reeves www.blockchain.info On Wed, Feb 29, 2012 at 11:45 PM, Pieter Wuille wrote: > On Wed, Feb

Re: [Bitcoin-development] Duplicate transactions vulnerability

2012-02-29 Thread Ben Reeves
I'm not sure. What if they use a coinbase of a block that has already matured? On Wed, Feb 29, 2012 at 10:46 PM, Gavin Andresen wrote: > On Wed, Feb 29, 2012 at 5:05 PM, Ben Reeves wrote: >> A malicious miner can produce a duplicate coinbase which the majority >> of clients

Re: [Bitcoin-development] Duplicate transactions vulnerability

2012-02-29 Thread Ben Reeves
e attacker only one valid block ~$240) and could be quite disruptive. I think this should be patched in DisconnectBlock() (if it hasn't already?) before any protocol change - maybe a new mapByCoinbase multimap is needed. Thank You, Ben Reeves www.blockchain.info On Tue, Feb 28, 2012 at 4:48 PM,

Re: [Bitcoin-development] Duplicate transactions vulnerability

2012-02-28 Thread Ben Reeves
nts to find a genuine non-corrupted copy of the blockchain to download. Thank You, Ben Reeves www.blockchain.info On 28 Feb 2012, at 18:23, Luke-Jr wrote: > On Tuesday, February 28, 2012 11:48:39 AM Pieter Wuille wrote: >> A simple way to fix this, is adding an extra protocol rule[1]: &g

[Bitcoin-development] BIP Submission

2012-01-16 Thread Ben Reeves
Hi everyone, I wish to submit the following draft BIP for discussion and possible formal BIP review. https://en.bitcoin.it/wiki/BIP_M_of_2_DRAFT It is a proposed alternative to BIP 16 ("/P2SH/"). Thank you,