How to Import and Export Bitcoin Private Keys

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The cold wallet is created by running Bitcoin Core in an offline Tails session. Once created, keep the wallet cold - never enter the passphrase within anything other than an offline Tails or similar session. You will also need the Bitcoin Core binaries, which you can get here. On a modern computer and decent USB drive I find it stable, quick-booting and responsive. The first time you boot into Tails, create an encrypted persistent storage partition on the USB drive - this is straightforward, just follow the instructions here.

KeePassX is actually bundled with Tails. Boot into your Tails USB disk. At this point, Bitcoin Core will bitcoin qt import wallet dat download created two receiving addresses that are managed by the wallet. Access these addresses via the Bitcoin Core Bitcoin qt import wallet dat download menu:.

Two unnamed accounts are created by default during wallet setup. The API still has lots of references to accounts - for example, to list out addresses, the getaddressesbyaccount method is required. If you were to send funds to a public address controlled by this wallet, they would be irretrievable. You can open a wallet by passing in the -wallet option when opening Bitcoin Core - BUT the wallet must bitcoin qt import wallet dat download located in the Bitcoin core data directory. You can add a symlink to set this up:.

If required, you could dump the private keys of the cold wallet. Access to the private keys equates to full control over the Bitcoin. On the plus side, you could store these keys on paper which would ensure that you will always be able to import keys. Personally, I have decided not to backup private keys - instead relying on multiple copies of a cold wallet encrypted with a strong passphrase.

The wallet can then be bitcoin qt import wallet dat download stored online, since it is effectively useless without the encryption passphrase. Note that if someone gained control of your encrypted wallet without the passphrase, although they would not be able to transfer funds they would be able to access your transaction history. The passphrase should be stored securely for example, in multiple copies of an encrypted KeePassX database in more than one location. To do this in Ubuntu:.

This will load your cold wallet into your Bitcoin Core client. This article describes how to: Create a cold-storage wallet using Bitcoin Core in a live offline Tails session Generate and collect bitcoin qt import wallet dat download Bitcoin addresses for the cold wallet Manage the wallet and wallet passphrase The cold wallet is created by running Bitcoin Core in an offline Tails session.

Open a terminal and cd to the Bitcoin Core binaries directory: Access these addresses via the Bitcoin Core File menu: Save the generated wallet to your persistent volume. You can add a symlink to set this up: Transfer Funds Transfer Bitcoin to one of the public Bitcoin addresses managed by the cold wallet. Backup Private Keys If required, you could dump the private keys of the cold wallet.

To do this in Ubuntu: Encrypt wallets with a strong passphrase Secure your passphrase and your wallet - there is NO password reset option if you forget!

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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.