Bitcoin QT wallet sichern / Dogecoin hashrate wallet

1. Splitting off the Bitcoin-Qt wallet from the P2P core code

At the moment,the core functions of the bitcoin client,processing new transactions and maintaining the history of old transactions,share the space as information about the wallet you set up using the client.

When you download Bitcoin-Qt,the official bitcoin software,you can help maintain the bitcoin network (i.e. run a node) and run a wallet (i.e. hold your money) from within the same program.

“Back in the day when people did not know what bitcoin was,[this] made sense, ” explained Van der Laan. “One would install one program to maintain the network and to be able to receive and send those curious coins.”

This creates the risk of someone stealing the private key to your wallet and therefore your money. When you unlock your private keys in order to spend money,their plaintext form is exposed to the wider bitcoin network. This arises because of a difference in function,Van der Laan said.

“There is an inherent conflict: because of security risks it is sensible for a wallet to be online as little as possible,whereas a node should be online as much as possible for a stable P2P network.”

Separating these two functions will turn Bitcoin-Qt into a simple payment wallet (i.e. a simple piece of software for running a bitcoin wallet),which will then run the core bitcoin software optionally and separately in the background – thus keeping your bitcoin wallet safe,while also letting you contribute towards maintaining the bitcoin ecosystem.

2. Deterministic wallet

Perhaps a more troubling problem for those who manage a large number of wallets through Bitcoin-Qt,the software has a default number of pre-generated public and private keys stored when you backup your wallet. This feature allows a backup to access wallets created after the backup was made.

But the software doesn’t currently tell you when you’ve used up this store of pre-generated keys,so if you don’t regularly update your backup you can end up running wallets in the mistaken belief that the private key is saved in your backup.* Or as Van der Laan puts it,“it’s easy to end up with a sob story.”

“Because the wallet generates random keys,backup discipline is extremely important right now. For every 100 new keys,or whatever the keypool size is set to,one needs to update their backup.”