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0
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1answer
29 views

WIF Format and Storing Private Keys

I'm writing an Android app which will be storing private keys for Bitcoin and a few Altcoins in an SQLite database. To store my private keys, I was initially using the WIF. When I take them out of the ...
3
votes
1answer
68 views

Why doc says importing private keys is so dangerous?

There are a lot of applications when someone would like to import a private key. However in wiki documentation they say it is very dangerous: https://en.bitcoin.it/wiki/How_to_import_private_keys ...
0
votes
1answer
36 views

How can I import a private-key to Blockchain.info in order to use it?

I recently bought a BTC-wallet from my friend. It has a cold storage wallet ("Watch only") and a private key (which is a bunch of numbers and letters). How can I use it in Blockchain.info? How do I ...
1
vote
2answers
58 views

Bitcoin-qt import private key crash

Importing a private using the debug console causes a crash, I always have to kill from shell the bitcoin-qt app and restart it. Is there any way to prevent this? Is there a way to import the private ...
0
votes
2answers
61 views

Using paper based public/private keys in bitcoin-qt [duplicate]

If I only have a public key string and a private key string written on a sheet of paper. How do I use those in bitcoin-qt? If this can be added to bitcoin-qt, will it eventually show me how much ...
1
vote
1answer
149 views

How do you sweep a paper wallet with Bitcoin-Qt?

Sweeping involves importing a private key, then sending it's entire balance to a new address in your wallet via a new transaction. This would protect your paper wallet's bitcoins from being stolen if ...
1
vote
2answers
31 views

Would Bitcoin-Qt ever use an imported private key's public key as a future change address?

Let's say I import a paper wallet's private key into my Bitcoin-Qt client. I then manually sweep the entire balance from that private key to a different Bitcoin-Qt private key/address with a new ...
0
votes
1answer
82 views

ELI5: How do I import keys from blockchain.info backup into MultiBit 0.5.18

So, blockchain.info is holding my account hostage. My phone with my 2FA was lost (and remotely wiped) and they refuse to remove the 2FA on my account to get access. I have a recent backup of my keys ...
1
vote
1answer
37 views

Help with missing transaction

I'm trying to learn how to programmatically interact with the Bitcoin protocol. I've, seemingly, successfully generated a private key, WIF, and public address with code. I used Coinbase to send .001 ...
0
votes
1answer
70 views

Import private key on multiple computers

I decided to make some custom addresses for personal use and I have two computers running bitcoin clients. I imported the private key of the wallet I generated to the wrong computer and then I ...
1
vote
0answers
47 views

Converting multiple btc private keys in standard text format to WIP

Ok, going crazy! I have a file that lists my old private keys (2011) (not original wallet.dat, just keys txt file). I need to convert each of these keys (not one at a time) into either a WIP key ...
0
votes
0answers
20 views

How do I import a backup of my Mac Wallet

I'm using an application called Mac Wallet. All of a sudden, it says my wallet is open (although I know I locked it) and when I try to protect it with a password, it says it's done but it still shows ...
2
votes
1answer
225 views

What app should I use to import my wallet keys?

I have the private key backup from my Android phone wallet. My phone broke and has been replaced but I can't see any import option in the Android wallet app. How do I get my BTC back?
1
vote
1answer
51 views

How do you redeem a compressed key?

There is very good answer here: How to redeem a basic Tx? It works great. But the algorithm is only for uncompressed addresses/keys, how can I change it to deal with compressed ones? And the second ...
3
votes
2answers
1k views

How can I import blockchain.dat into bitcoind?

I'm getting the latest torrent and I'm running bitcoind on my linux box. How can I import this once it's downloaded?
0
votes
0answers
83 views

Serious blockchain.info balance bug?

I noticed after sending a small amount from my blockchain.info wallet, the balance suddenly went to zero! I looked at the transaction on blockchain.info and it seemed normal enough, with what should ...
0
votes
2answers
127 views

Issue after importing private key to MultiBit

I followed another question here and imported my address from Bitcoin-QT to Multibit. The reason why I did so was because I had received some BTC but in Bitcoin-QT it was taking years to download the ...
0
votes
0answers
353 views

How to import my wallet.dat [duplicate]

I had a couple of bitcoins on a PC that crashed. But I was lucky because I made a backup of my wallet. I haven't used Bitcoins since then. Now I want to sell 1 Bitcoin. But when I went to the ...
0
votes
2answers
332 views

Getting keys from multibit to export for electrum

I want to switch from Multibit to electrum. I can't figure out how to make use of the key multibit exports when it does a backup. Electrum and blockchain.info both seem to want something I can paste ...
0
votes
1answer
1k views

Why are imported private keys stored to addressbook instead to recieving wallet?

I followed this guide to import private keys which I generated with vanitygen into litecoin-qt. walletpassphrase yourLongPassphrase 300 importprivkey yourPrivateKeyInWalletImportFormat But now - ...
0
votes
1answer
3k views

How do I import to MultiBit from Blockchain.info?

I have a single password and a yubikey on my account at blockchain.info When I try to import the wallet.aes.json file nothing really happens. When I select the import file, MultiBit never displays ...
1
vote
2answers
986 views

How to transfer private addresses from one wallet to another?

My wallet has 3 addresses. My other wallet has 5 addresses. I just want to synchronize those. How would I do so?
5
votes
2answers
5k views

What other wallets can import Qt's backup .dat file?

I've been using Bitcoin Qt on my work computer (my only working computer at the moment) but last week Windows 7 decided that the program's bypassing the firewall to download the blockchain was a ...
7
votes
5answers
10k views

Dumping private keys from wallet.dat from command line (pywallet.py alternatives)

I have somewhere in my hard disks some copies of old wallets which I need to analyse. My idea was importing them into blockchain.info, but to do that apparently you need to dump them with ...
3
votes
1answer
5k views

Why might MultiBit not show a transaction that was sent to me? [duplicate]

So i recently bought a bitcoin from a vendor , and i had it sent to my Address in multibit. Now the problem is , the money isn't there and i'm not sure what to do. He told me to get bitcoin ...
4
votes
1answer
2k views

How to transfer addresses from Satoshi client to MultiBit?

I'm trying to take an address from my Satoshi client and transfer it into my new MultiBit client. I have found several questions similar to this, and have tried all their solutions, but to no avail. ...
12
votes
2answers
3k views

How do I import a private key into Bitcoin-Qt?

How do I import a private key into Bitcoin-Qt? bitcoind is nowhere to be found, and pywallet says it requires "bsddb" when I run it, which is also nowhere to be found. I generated some vanity ...
5
votes
3answers
264 views

How does ImportPrivateKey get the Address if I don't explicitly send it?

Suppose I just used vanitygen to create this key: Pattern: 1a Address: e1aMGYXuGpUwDGH9gz3ZBs8UH746nRdEk6 Privkey: 5KhCszBi22hEZZixPEQkLAMtUVkxbGaxBFsH7a9iefqrxHmSXgH All I had to do to import this ...
17
votes
4answers
20k views

How do I import private keys from Bitcoin-qt to Multibit client?

Question says it. I spent 20 mins Googling. Saw several links on bitcointalk.com but amazingly found no solution to this. Am I the first one trying to do this? Note the following are not the ...
7
votes
3answers
352 views

Can we use a Paper Private Key that has been loaded in the Bitcoin client?

Okay, I want to start offering Bitcoin as a payment option on my e-commerce site. For now, I just want to keep it simply as an option for those overseas customers who don't have credit cards/PayPal so ...
9
votes
3answers
482 views

Will I need to keep track of my old private keys forever?

Let's say someone (person A) starts using Bitcoin and in a period of time eagerly publishes some of their randomly generated (eg. by the Satoshi client) receiving Bitcoin addresses on formus, sends ...
2
votes
1answer
2k views

How do you import Block Chain from bitcoincharts?

I went to http://eu1.bitcoincharts.com/blockchain/ and downloaded the most recent build. Then I extracted it and was left with BLK0001.dat and BLK0002.dat. What is the next step? I tried replacing the ...
11
votes
2answers
7k views

How to import my wallet?

I used to run bitcoin on Ubuntu and I have a wallet with 1 coin in it. I took a backup of my ~/.bitcoin directory which includes a wallet.dat file. Now I'm running on a mac, using the bitcoint-qt ...
7
votes
1answer
5k views

Extract private keys from Bitcoin Wallet

I have encrypted my bitcoin wallet. I know the passphrase, that's not the issue. I want to transfer my bitcoins to blockchain.info but it's asking me for the private key. I cannot find it nor can I ...
5
votes
1answer
760 views

Does Mt. Gox's “Redeem a wallet.dat” feature require an unencrypted wallet? [closed]

Just added to Mt. Gox's API documentation is the ability to Redeem a wallet.dat, which allows a simple way to import (via upload of wallet.dat) all your private keys to be managed by Mt. Gox. All ...
2
votes
2answers
444 views

Easiest way to collect funds of big lists of bitcoin privatekeys

I am setting up an webstore where you can pay with bitcoins. Therefore I created a bulk list on bitcoinaddress.org. I save the public addresses in a database and attach one to each transaction. Then I ...
1
vote
1answer
417 views

Which mobile apps allow me to redeem a private key from a QR code?

Which mobile apps will let me scan a QR code of a private key (such as the one created by BitAddress) and then spend the funds from that coin? Please specify Android, iPhone (iOS), etc.