Tutorial: The Import / Export Feature in your Blockchain Wallet

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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 Import wallet blockchain bitcoin.

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 import wallet blockchain bitcoin, 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 import wallet blockchain bitcoin 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 directly in the bash history but there are a couple of techniques you can use to avoid this.

Simply add a import wallet blockchain bitcoin 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 important 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 Bitcoin-QT 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 to import a batch of private keys so you will need to wait a import wallet blockchain bitcoin 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 started bitcoind, you will need to stop it before Bitcoin-QT will start again:. At some point, you may wish to delete private import wallet blockchain bitcoin from a wallet.

Retrieved from " https: Navigation menu Personal tools Create account Log import wallet blockchain bitcoin. Views Read View source View history. Sister projects Essays Source. This import wallet blockchain bitcoin was last edited on 9 Januaryat Content is available under Creative Commons Attribution 3. Privacy import wallet blockchain bitcoin About Bitcoin Wiki Disclaimers.

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In the Import section, the first sub-section option you have is to add a Watch Only address. This means you can add any public bitcoin address in the world here and keep tabs on it. By watching the address, it means you have read-only permissions, and cannot spend bitcoins using this address.

In the Import section, the second sub-section option is Import Private Key. This section is specifically for bitcoin addresses that you own, and have both the public and private keys to. Maybe you had your bitcoins in an exchange, and want full control over them — this is the place to do it. You can import the private key from an address you own into the Blockchain Wallet.

This will allow you to actually send and receive bitcoins to and from this bitcoin address. As part of the Import Private Key process, you have the option to import keys directly, or sweep the keys.

This is a safer more preferred method over importing keys to your wallet. In the Import section, the third sub-section option is Import using paper wallet. Just as it sounds, you can import with a private key but by using a QR code. Instead of typing in your alphanumeric private key, you can scan your QR code instead and import the private key that way. This section keeps a running list of backups of your Blockchain Wallet. Every time there is a change in your wallet, a new backup is created.

With the automatic backups, at any time you can import a previous wallet file. In this third section, Blockchain accepts wallets in different formats, with AES encrypted wallet backups being the most common and secure for Blockchain users.

Just copy and paste your wallet backup data into this section to manually import your wallet backup. Make sure you have a full understanding of wallet backups before importing one. This is just another method for Blockchain Wallet users to export their wallet private keys, using AES for more security, so at any time you can import them back to your Blockchain Wallet or any other wallet for that matter.

As we always point out to our users, you control your bitcoins, nobody else. To repeat — there is no encryption — so the keys are in plain text and less secure when saved.

This is fine, but something you should be aware of. You can use this to create cold storage for your bitcoins, and also keep a paper trail in case you lose access to your passcodes to your wallet. Home About Blockchain Support Wallet.

Import In the Import section, the first sub-section option you have is to add a Watch Only address. Import Backup This section keeps a running list of backups of your Blockchain Wallet. Our Interview with FXOpen: Newsletter Subscribe to our newsletter.