Bitcoin Core version 0.15.0.1 released

[Guide] How to transfer your wallet from your computer to android.

I got tired of waiting and waiting for the whole blockchain to sync so I decided to move my dogecoins to my phone since the app does not need to download the whole chain. (Luckily there is a bounty for a electrum equivalent that will hopefully arrive soon.)
It is much much easier if you just transfer some funds to a new address on your android phone, but this tutorial is for those people like me who can't even get the dogecoin app to sync.
Surprisingly the whole process was very simple. Don't be put off by all the text or all the talk about security. I just want things to be accessible to beginners and to practice good habits. Root is not required.
Note: I am assuming you are using the official dogecoin-qt app and the Dogecoin Wallet app by langerhans.
Disclaimer: This will involve having your private key stored in plaintext. Proceed with caution and treat that file like you would a password. Do not share your private key with anyone.

Getting your private keys

A wallet comprises of public keys and private keys. Public keys are the addresses that you share, you can only use them for viewing. Private keys let you actually make transfers and are what makes you the owner of the wallet. Today we will be transferring those private keys to your phone. They will still be present on your computer unless you delete them, so keep that in mind security-wise.
You will have to replace everything in '<>' with your own values.
  1. Open the desktop app
  2. Open the wallet console by going to: Help -> Debug Window -> Console
  3. If your wallet is locked with a password, you'll need to unlock it by typing: "walletpassphrase 120".
  4. Get the private key for an address by typing: "dumpprivkey "
  5. Save the private key to a file.
  6. Repeat this for each address that you want to transfer over.
Please think about how much dogecoins you want to transfer over. Brarsh:
Do you need that much? What if you lose your device? Just like only keeping a small amount of cash in your wallet and most safe in the bank, only carry what you could conceivably use for that time without access to your main wallet.

Creating a backup file

Next we need to create a backup file so that we can import our addresses into the android app. The android app uses the same format for its backup files as MultiBit (A popular bitcoin app). A typical file looks like the following:
# KEEP YOUR PRIVATE KEYS SAFE! Anyone who can read this can spend your Bitcoins. Kwmxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2013-06-22T18:36:35Z L1Sxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2013-05-04T22:47:32Z Kxwxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2013-05-08T00:58:28Z 
What we want to do is put our private keys in the following format: key date-of-address-creation, where the date is in the format YYYY-MM-DDTHH:MM:SSZ. Note the T and the Z. The android app needs the date so it knows how far back into the blockchain it needs to sync.
If you can't remember when you created the address, visit http://dogechain.info/address/YOURADDRESS and get the date of the earliest transaction. It says that the dates are approximate, so I'd just put 00:00:00 for the time.
You should now have a valid unencrypted backup of your wallet.

Importing the backup

  1. Transfer the backup to your android phone, placing it in your Download folder. It has to be put in the Download folder or else the dogecoin app won't find the backup. Make sure it has a name you'll remember later.
  2. Open the dogecoin app and click on: Back Up Keys -> Restore private keys. Click on the name of the backup and from the list that shows up, look for your backup, which should be unencrypted. Click Restore.
  3. Delete the backup in your Downloads folder. Remember, your private key is stored in plaintext in there, so it is important that you delete it. Delete the backup on your computer if it is there also.
  4. Wait for the app to sync completely. Your addresses will be added to the addresses that were already in the app, and your transactions should show up. If they do not, make sure that the date you put was correct and early enough.
  5. Go to Back up Keys > Back up private keys and create a backup. This time it will be encrypted with a password :). If you do not have a backup, you could lose all your coins if you lose your phone or the data on it.
  6. To the moon!

Terminology

I just got into dogecoin two days ago so correct me if any of this is wrong. Same thing with anything in the post :).
Blockchain/Dogechain: The blockchain is a ledger (record) of all the dogecoin transactions that have ever taken place. As of writing it is larger than 1GB in size. The blockchain is needed to find out how many funds you have in your wallet.
Wallet: A wallet is the digital equivalent of a real life wallet. It is where your money is tied to (It doesn't contain actual dogecoins, but someone else could explain that better than me). The wallet contains your addresses and your private keys, both which are needed to receive and send dogecoins respectively.

Sources

Getting your private key
Importing the key into the android app
submitted by cooper12 to dogecoin [link] [comments]

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