Questions tagged [wallet]

This tag should be used for questions that pertain to wallet software. A wallet software is a piece of software which manages users' keypairs, addresses, and transactions. Wallet software also allow a user to send and receive Bitcoin.

Filter by
Sorted by
Tagged with
18
votes
5answers
18k views

How to decode private key from Android Bitcoin Wallet?

I want to import my private key from the android's Bitcoin Wallet (the one created by Andreas Schildbach) but it can export it only in an encrypted way. How do I decrypt the file so I can import the ...
18
votes
2answers
2k views

What is the status of hierarchical deterministic wallets (BIP32)

BIP32 specifies hierarchical deterministic wallets, where a master seed fully determines a whole tree of keypairs that can be arbitrarily branched. It also introduces the notions of internal and ...
5
votes
1answer
13k views

What does change address mean inside Electrum wallet?

I am bit confused with the change label that is inside Electrum Wallet . Can I receive bitcoin if i give this address which are under change label? What is the difference between Receiving and Change ...
0
votes
1answer
24k views

How to login into my wallet?

I get my bitcoin address from freebitco.in. So how can I login into my wallet to know about my bitcoins? How to convert bitcoins into dollars and send it in to my prepaid debit mastercard?
17
votes
4answers
5k views

Is there a way to automatically send bitcoins from one wallet to another?

Say I have 2 wallets, an older non-encrypted one and a fresh new encrypted wallet with all new addresses. If I have an address in the older wallet that may receive some bitcoins in the future is there ...
12
votes
2answers
95k views

Check how much money there is in my Bitcoin address/wallet

Is there a website or service that can quickly lookup how much bitcoins are there in a given wallet/address, so I can look up my own wallet from a friend's computer which doesn't have the Bitcoin ...
8
votes
4answers
4k views

Secure way to store BTC over a long time - and its risks?

What are the most secure way to store a huge amount of BTC over a long time and its (detailed) risks? A other assumption is that the owner does not have a very technical background, thus it will not ...
9
votes
1answer
750 views

Best way to safely host a high volume online transactional wallet?

I am looking at starting a business that will send and receive a large amount Bitcoins in a semi automated manner using API's. I was wondering what is the best way to do do this in a secure way to ...
7
votes
2answers
7k views

How do I transfer BTC in cold storage?

I understand how to send BTC to cold storage or offline wallets, but I can't seem to find information on how to send BTC from cold storage to, let's say, a wallet on my computer, or a website, or a ...
10
votes
4answers
18k views

How can I delete an address (private key) in the list of received Bitcoins?

For every transaction I wanted to get, I was creating a new address, but soon I realized that there is just no way to delete all these addresses from the UI. To make it clear, here is a picture: I ...
6
votes
1answer
927 views

How to handle a ridiculous amount of receiving addresses?

By ridiculous I mean something absolutely absurd. 1 million+ addresses. Like say if Amazon had started to accept payments, how could they possibly keep up? Bitcoind probably can't keep up? How would I ...
4
votes
1answer
1k views

Have I lost all my money to a typo?

I tried to send my Bitcoins to my wallet earlier but have managed to miss the last two digits off the address when copy/pasting. The payment was sent straight away but has obviously not arrived, is ...
2
votes
1answer
4k views

How to Create Wallet using Bitcoind

How can i create a wallet for web based application for bitcoin i.e., unique address for each user along with the private key? Does using bitcoind help me with this and how can i do this ? I want to ...
11
votes
4answers
2k views

If bitcoin is indivisible, where does change come from?

Let's say I want to give Alice .22 BTC. I currently have in my wallet 1 BTC. Because Bitcoin is indivisible, I have to spend the 1 BTC I have as input, and .78 BTC will be returned to me as change, ...
11
votes
3answers
22k views

How can I transfer a Bitcoin-qt wallet to Electrum?

I am switching from bitcoin-qt to Electrum, and it seems as if I will need to download the blockchain again. Can I copy and paste my wallet.dat into Electrum's files?
9
votes
1answer
764 views

Does the BerkeleyDB-based wallet.dat implementation leak private key data?

I read this little nugget on the bitcoin client bug tracker: the bdb binary log files can also contain sensitive data such as private keys Is that true? Does this mean that even with an encrypted ...
8
votes
4answers
7k views

How to find a specific bitcoin address from all the addresses?

Recently, I found a site that show all the addresses in a huge list, divided in 904625697166532776746648320380374280100293470930272690489102837043110636675 pages. The site's link is http://directory....
7
votes
2answers
2k views

Transfer blockchain from PC to Mac

I have a bitcoin wallet on my PC but I just recently downloaded the MAC version of it. I would like to initialize it with the blockchain from my PC so that I don't have to download it all over again....
5
votes
1answer
737 views

Can I send bitcoin to other address in my wallet to provide anonymity?

I want to buy service Z. I have 2 addresses in my bitcoin wallet: aaa and bbb. I buy 1 bitcoin from coinbase and tell coinbase to send them to aaa. Now I send them from aaa to bbb. No one else ...
4
votes
3answers
152 views

How can I safely store and trade Bitcoin and other crypto currencies?

How can I safely store Bitcoin? Exchanges require me to deposit to trade, is this safe? If I can't trust exchanges, what is the best way to safely store my cryptocurrency and transact it?
4
votes
3answers
8k views

Can I remove the passphrase from my Bitcoin Wallet?

I'm using the standard Mac Bitcoin client and I added a passphrase. I'd like to remove that passphrase. Is that possible?
3
votes
2answers
3k views

Which bitcoin wallets let you export to a universal .wallet format?

Which bitcoin wallet applications for android, windows, and mac allow you to export .wallet files that are cross-compatible with each other? Currently there are so many wallet applications out there ...
2
votes
2answers
628 views

Accepting Bitcoin payments without the full blockchain or third party APIs?

I want to make a basic program/script that utilizes Bitcoin payments, but I don't have the storage space to sync with the entire blockchain, and I don't want to be dependent on a third-party API like ...
2
votes
1answer
804 views

What are the most notable cases of coins or wallet thefts?

What are the most notable cases of coins or wallets being stolen from Bitcoin users or services? When did they occur, how many coins were stolen and has any of the thieves been identified?
2
votes
2answers
2k views

How does the Bitcoin Standard Client wallet encryption work?

I encrypted my wallet using Bitcoin QT, then closed the application. When I restarted Bitcoin QT, it did not ask for the passphrase. But I could still access the wallet. How is it possible to access ...
6
votes
1answer
193 views

Does blockchain.info backup wallet include also the next addresses

The standard client's wallet includes a key pool of 100 extra pre-generated addresses, which are the next ones to be "generated" when you ask an extra address. Does the blockchain.info's backup ...
6
votes
2answers
1k views

Import multiple watch-only addresses using importaddress?

With the importaddress RPC command it is possible to import one watch-only address. But how can I do that with, let's say, 100?
5
votes
1answer
2k views

How do I consolidate all my BTC into a single address?

I'd like to archive all my coins in a single address (specifically the address for a "brain wallet"). What is the most effective way to combine all the outstanding balances into a given address?
4
votes
2answers
6k views

How long does it take for an exchange to send me bitcoins?

I'm not sure I understand all of the bitcoin storage options I know there are bitcoin addresses and bitcoin wallets what is the relationship of an address to a wallet? is a wallet mandatory and a ...
3
votes
4answers
5k views

Why is it so difficult to track & recover stolen Bitcoins?

I have to admit I don't fully understand the Bitcoin protocol. But from what I do understand, transactions are traceable -- it is the main reason decentralization works: the world can watch and ...
3
votes
1answer
3k views

How do I restore a wallet from a backup file in MultiBit HD?

If I have a backup file like mbhd-*.zip.aes how do I restore it using only my password? When I click on Restore Wallet, it only asks for the wallet words, not the file path or password.
3
votes
2answers
5k views

Do we have to pay transaction fee if we transfer bitcoins from one wallet to another ?

Can this be done for free? also please mention wallets who do not charge transaction fee (if they exists)
2
votes
1answer
652 views

What technology will supersede the BerkleyDB format? What are the current scalability limitations?

How scalable is the BerkleyDB format (the technology used within a wallet), and what are its limitations? What technology would replace or supplement BerkleyDB to address those scalability challenges?...
2
votes
1answer
8k views

How to recover an old wallet.dat file

Back in 2011 when bitcoin started to make the news, I created a wallet and let it run for a bit (no pun intended). It almost fried my computer so I stopped. In the process, I think I remember I mined ...
1
vote
1answer
829 views

How can you restore a password in MultiBit if you are given the wallet words BEFORE you even enter a password?

How is it possible to recover a wallet password when the wallet words are provided before you even enter the password? https://multibit.org/en/help/hd0.1/restore-password.html Restore password ...
0
votes
1answer
46 views

What type of Bitcoin wallet is more secure than others?

What type of Bitcoin wallet is more secure than others among Paper wallet, Physical bitcoin, Mobile wallet and Web wallet ?
-1
votes
1answer
232 views

I NEED YOUR HELP URGENTLY Bitcoins

I really need your help on this. It has stated in my wallet that i've received my bitcoins of 1.182691BTC on 29/05/18. This's my wallet address: muFjdWSy2DKStSP2gUH2aHZq6kRBva8ZDV it stated on the ...
26
votes
1answer
16k views

How secure is blockchain.info?

How secure is using a wallet on blockchain.info? How do you evaluate the different sites that provide wallets?
15
votes
1answer
6k views

How does bitcoind generate a new address if the wallet is encrypted

Suppose that my wallet is encrypted with a passphase and currently I have not provided bitcoind with the passphrase to access the private keys section of the wallet. If I enter: bitcoind ...
22
votes
2answers
52k views

How are public and private keys related to the wallet?

I understand that all the Bitcoin protocol is based on an asymmetric cryptography. A user gets 2 keys (public and private). How do these keys connect to the Bitcoins? How are the keys are related ...
15
votes
2answers
6k views

How does the Bitcoin client encrypt the wallet.dat file?

What is the algorithm used for encrypting the wallet.dat file?
13
votes
2answers
2k views

How to minimize risk when accepting zero confirmation payments?

I'm trying to setup a way of accepting Bitcoin payments in real life situations, where waiting for confirmations is typically not an option. I understand this is never 100% risk free (especially with ...
11
votes
3answers
4k views

Key derivation in HD wallets using the extended private key vs hardened derivation

I am reading the book Mastering Bitcoin and confused about wallet key derivations in Chapter 4. Keys, Addresses, Wallets. The book first mentions a private child key derivation where the child ...
10
votes
3answers
3k views

What happens when the same wallet (private key) is used on several machines?

Let's say I copy my wallet to another computer and start using it there. What happens? Can both computers send and receive payments to the same address(es) in the wallet? A different scenario with ...
19
votes
6answers
8k views

What is the longest known vanity address generated?

Anyone can generate a vanity address of arbitrary length with appropriate tools, it's just a matter of performing enough computations. What is the longest known vanity address anyone has generated?
14
votes
1answer
10k views

Is there a wallet for different cryptocurrencies

For a person who has different amount of different cryptocurrencies it is actually annoying to use many clients. Right now just Bitcoin data is more than 15 GB, litecoin 1.5 GB and so on. Is there ...
7
votes
1answer
481 views

How should centralized wallets handle user accounts?

I tried to generalize this question from one I asked on the BitcoinJ development list. I'm working on a project that requires a centralized wallet. From what I gather, these types of services ...
6
votes
1answer
2k views

Separate wallets sharing the same blockchain?

Since the blockchain is such a large file, I'd like to have more than 1 account on the same computer share it. Is that possible?
3
votes
3answers
2k views

Lost my Bitcoin wallet and have only 11 out of 12 mnemonic seed phrase words. How can I get my Bitcoins?

I am new to the whole Bitcoin thing, and I am having my first attempt almost going sour. I lost where I created my wallet. I have my Bitcoin address and only 11 of my mnemonic seed phrase words (of 12)...
28
votes
6answers
7k views

Why is the disappearance of Mt Gox a problem?

I'm sorry if this is a stupid question, I'm not a bitcoin user and may lack important information. My understanding was that each bitcoin user has a wallet on his harddrive or wherever, where he ...