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Before reading this page, users should note that messing with ECDSA private keys is very dangerous and can result in losing bitcoins, even long after the import. It is recommended that outside of self-generated vanity addresses, users should never import or export private keys.

As of Augustpossibly the easiest way to import a private key is using Blockchain. It is extremely risky and not recommended to use Blockchain.

It's best to import them using bitcoind as described below. User can choose to type in the private key manually or scan a QR code containing the private key using the camera. The user must wait 6 confirmations for access to the funds, and system is based on batch importation. It is extremely risky and not recommended to use BIPS or any online third-party service to import private keys, because they can steal your BitCoins if they have the keys. After spending, the private key in memory is destroyed so the paper private key remains somewhat secure.

Despite this, best practice is to immediately send the remaining balance to a paper wallet that was generated offline. Use this function if you would like to import a private key so all funds are immediately available for spending.

After importing this paper private key, you might consider destroying the original so it cannot be found and your funds stolen. Alternatively, you can keep it safe to be used as an offline backup.

If you have Version 7 or later it is now trival. If you are using Cold storagea Paper wallet or generating vanity addresses you may have a need to import a Private key. This article describes how to import a private key through the RPC API of bitcoind, which is a topic for advanced users. Instead, you need to start the bitcoind server.

If you have an encrypted wallet recommendedyou need to unlock it temporarily before importing private keys. Typing this directly in a bash terminal will leave your wallet passphrase import private key bitcoin core in the bash history but there are a couple of techniques you can use to avoid this.

Simply add a space before the command:. The last command unlocked your wallet temporarily for seconds, during which time you must import your private keys. Since private keys can be as import private key bitcoin core as your passphrase, you may want to use the same techniques as above to prevent their being recorded in bash history bash variable or space before the command:. The importing process is now started.

Bitcoind will rescan the entire block data to ensure this key has not been used before. This process will take from one to two minutes, depending on your CPU performance. DO NOT abort it before finishing! If no errors occurs, the import is a success and Import private key bitcoin core users will be able to see the new address in the GUI immediately.

If you need to import more keys, just repeat the instructions above. There is currently no command import private key bitcoin core import a batch of private keys so you will need to wait import private key bitcoin core minute or two for each key to be imported.

These commands will clear the passphrase and private key from memory if you used the read technique. If you import private key bitcoin core bitcoind, you will need to stop it before Bitcoin-QT will start again:. At some point, you may wish to delete private keys from a wallet. Retrieved from " https: Navigation menu Personal tools Create account Log in. Views Read View source View history. Sister projects Essays Source. This page was last edited on 9 Januaryat Content is available under Creative Commons Attribution 3.

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If you held Bitcoin at the time Bitcoin Cash was created block , 1st Aug This short tutorial will show you how to claim Bitcoin Cash from the Bitcoin you had held in a Bitcoin Core wallet at the time of the hard fork. This guide will show you how to export private keys from a Bitcoin Core wallet. You will need a Bitcoin Core wallet that contained Bitcoin at the time of the Bitcoin Cash hard fork.

Any transactions since the hard fork will not be available on the Bitcoin Cash chain. We will be using the Electron Cash wallet to import the private keys and claim the Bitcoin Cash. The first thing we need to do is export all of our private keys that contained Bitcoin at the time of the hard fork.

Once we have exported the keys we will be able to import them into Electron Cash and then spend the Bitcoin Cash. To export the keys perform the following steps. With each private key copied to a text file, you are now ready to move onto the next step and claim your Bitcoin Cash.

This step is optional but I highly recommend sending your full wallet balance to a new Bitcoin address where the private key will not be imported in the following steps. The reason for doing this is to guarantee the creators of the Electon Cash wallet do not have access to your Bitcoin private keys and funds.

Electron Cash is a fork of Electrum. The final step is to import the private keys used in the dumpprivkey command in the first step. Remember to make sure you have sent the funds to a new Bitcoin address before importing the keys in the following steps. Open Electron Cash , give the wallet a name and then click Next. Select the Use public or private keys option and then click Next. Copy and paste the private keys you exported from the Bitcoin Core wallet and then click Next.

Enter a password to encrypt the wallet file or leave blank to disable encryption then click Next. Now if you had any Bitcoin on any on any of the private keys imported you should see a balance and a list of transactions on the History tab.

You should now be able to spend your Bitcoin Cash by sending transactions from the Electron Cash wallet. If you have any questions leave them in the comments below.