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.

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13
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2answers
447 views

Are there any Bitcoin wallets with native I2P integration?

Tor usage seems to be fairly common with Bitcoin, but I have heard less about efforts of integrating with the I2P efforts. Tor and I2P both have their pros and cons, but I am curious to here about ...
13
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1answer
9k views

How does the wallet work, online and offline?

I've been reading about bitcoins and I've come across a few questions: How does the wallet actually work? From what I can gather, I use the wallet as a centralized service to store recieved coins, ...
13
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2answers
103k 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 ...
13
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2answers
348 views

What are the minimum security expectations of an online wallet service?

If you wanted to assess the security of an online wallet service such as a bitcoin bank or ewallet, what would expect to see addressed? Obviously SSL connections, but what about authentication, ...
13
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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 ...
12
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9answers
12k views

What happens to bitcoins if the site shuts down?

My father just asked me: What happens if the bitcoin people decide to shut down the website, what happens to my bitcoins? I didn't know.
12
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3answers
81k views

If I buy Bitcoins at Coinbase.com, should I leave them on Coinbase.com, or should I move them into a Bitcoin Wallet? Why?

If I buy Bitcoins at Coinbase.com, should I leave them in my account at Coinbase.com, or should I move them into a Bitcoin Wallet? Why?
12
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5answers
948 views

How to instantly give people a pre-filled wallet to introduce them to Bitcoin?

As a Bitcoin evangelist I like to introduce Bitcoin to my friends, and if possible even get them involved by having them own a few coins themselves. The settlement of a personal debt through Bitcoin ...
12
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2answers
5k views

What's the difference between a bitcoin client and wallet?

I would like to know what is the difference between a client and wallet.
12
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2answers
47k views

If I've lost my wallet, but know my bitcoin receiving address, can I get my bitcoins back?

Although I do have a backed up wallet file, I seem to also have a second bitcoin receiving address, which doesn't seem to correspond to it. Is there a way to recover any coins associated with that ...
12
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5answers
7k views

Recovering bitcoins after the owner's death

My Brother died in April and we believe he had a bitcoin account. Is it possible to find out how to recover/take over his accounts? I know this is a new form of currency but it seems odd there is no ...
12
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3answers
1k views

Do wallet stealing viruses exist?

After I install the bitcoin client, what are the risks of browsing the Internet? Can my wallet be stolen? Are there any known viruses/websites etc....?
12
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2answers
2k views

What is the safest method managing a large number of receiving Bitcoin addresses?

Say I want to run a big project, where users can continually request new addresses to deposit Bitcoins in their online account. I suppose I will have to pre-generate thousands of Bitcoin key-pairs and ...
12
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3answers
6k views

Error loading wallet.dat: Wallet corrupted

I've been using bitcoin for over a year now without issues. It's been a while since I fired up a bitcoin client though, at least a couple months. When I try running a bitcoin client (bitcoin-qt ...
12
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2answers
300 views

Can I force my wallet to only have news keys, post-encryption?

Now that v0.4 of the bitcoin client has encryption I've gone ahead and encrypted the keys in my wallet. But I had previously made backups of my (unencrypted) wallet and those keys are the same keys ...
11
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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
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4answers
2k views

Is it safe to email an encrypted wallet to myself?

I'd like to setup an automated process to email my encrypted wallet to myself, so that if, for instance, my house burns down, I've got easy access to a recent copy of my wallet stored off-site. I've ...
11
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2answers
7k views

How do wallet developers earn money?

Does anyone know how the Bitcoin wallet developers earn money? Do they live on only donations? Is it possible to survive on only donations? Why would they develop wallets if they don't make any ...
11
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3answers
580 views

What is the absolute minimum amount of information required to have access to a bitcoin balance and or a wallet file?

As far as I gather a wallet can remain offline indefinitely transactions are being sent to it. The network will keep track of the transaction so that the next time it is connected it will catch up. ...
11
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9answers
37k views

What is the best way to purchase Bitcoins quickly? [closed]

What is the best way to purchase Bitcoins quickly? I don't want to wait a month.
11
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2answers
593 views

Is there a recommended maximum number of transactions any one address should ever receive?

The pool I am with has sent about twenty transactions to one address I gave as a 'send to' addy. Could this one address just go on and on taking more and more of these transactions? A hundred of them? ...
11
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1answer
3k views

How to Call JSON-RPC SendToAddress when the Wallet is Encrypted?

I'm using JSON-RPC to send commands to my bitcoind, and it works fine. Now I want to encrypt my wallet. When I've done that, I will need to send the passphrase when calling SendToAddress. How do I do ...
11
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3answers
14k views

Wallet on multiple computers

I have a desktop, laptop, tablet, and phone. I want to be able to send and receive payments from all these devices. How do I go about doing that? Do I have to create a unique wallet on each ...
11
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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?
11
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1answer
2k views

How safe is it to use a Linux live CD to access my savings wallet?

It's clearly safe to create a savings wallet offline with a live CD, as no data can be sent to an attacker even if the live CD image is compromised (which seems unlikely). However, when it comes to ...
11
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6answers
1k views

Accepting Bitcoin payments on my website using bitcoind? Many questions… no apparent answers

I am trying to design a system that lets me accept Bitcoins on my website. I would like to use bitcoind, or bitcoinj. However, I have many questions regarding this setup. FYI, I already read similar ...
10
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5answers
11k views

How to restore locally a MyWallet backup?

The website blockchain.info has an online wallet system MyWallet which creates backups with a .aes.json extension. While I understand it's a json file encrypted with AES using my passphrase, I'm still ...
10
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3answers
4k 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 ...
10
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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 ...
10
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3answers
2k views

Is it important to have an unencrypted backup of the private key?

Am I correct that in not having our private keys written in paper or otherwise backed up we are implicitly trusting the wallet developers to keep publishing wallet versions that are capable of reading ...
10
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2answers
1k views

Is is possible to prove you possess an amount of BTC without actually spending it?

I could think of several situations, especially in large purchase negotiations, where one party would like to know that the money is under the control of the other party before continuing with the ...
10
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5answers
49k views

Can i store multiple crypto currencies in one wallet?

Is it possible to make a wallet for BTC and store LTC and NMC or other coins in it?
10
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6answers
3k views

How can I split my bitcoin wallet?

Let's say I have 10 bitcoins. I won't be using 8 of them any time soon. How can I put the 8 in a separate "offline" wallet not related to the bitcoin client? This would be a good security measure. If ...
9
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2answers
2k views

How secure is calling bitcoind JSON-RPC?

How secure is calling bitcoind through a JSON-RPC? For example, if I run it on one of my computers, and try calling it from another computer (provided neither of them are compromised), can someone ...
9
votes
5answers
35k views

What is the safest bitcoin wallet?

The reason i asked this question, because i just discover bitcoin a day back. And i found out that there are 3 type of wallet, which is in web like coinbase, our own computer like multibit, and mobile ...
9
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5answers
1k views

Can I create a deterministic wallet and export/disclose indiviual keys without compromising the wallet?

Scenario: Create a deterministic wallet and a larger number of private keys and associated bitcoin addresses on a safe (e.g. offline) computer. Backup the seed securely. Store the private keys ...
9
votes
4answers
17k views

Offline Wallets: Electrum vs Armory?

I'd like to secure my bitcoin with an offline wallet. A lot of security conscious people seem to use Armory. I am trying to get a better understanding of the differences between these two clients. I ...
9
votes
2answers
846 views

When a transaction is split into two outputs, how does the network “know” you're the owner of the “change” address?

Reading this thread about how transaction outputs are split due to "change" made me wonder how the bitcoin network knows you own that second address. How does your wallet/client display the correct ...
9
votes
1answer
2k views

Wallets vs Addresses

I dont understand how a wallet comes into play? Is a wallet a necessary part of a transaction or is it just a way of collating multiple addresses? I get how I should use a new address for each ...
9
votes
4answers
9k views

Is there a known way to export my wallet private key from the “Bitcoin Android” app (com.bitcoinandroid)?

A while back, I installed the Bitcoin Android app and moved 5 BTC on it. Fast forward to now, new phone, new ROM, and the app seems completely unwilling to update its blockchain, meaning I have no way ...
9
votes
4answers
21k views

How to move an address to a new wallet?

I have a wallet with several addresses. I would like to isolate one of the addresses in its own wallet, but I don't know how to do it. I've been trying with pywallet.py, but I've been unable to do it. ...
9
votes
1answer
559 views

Importprivkey's “label” - is it the same as an account?

The "importprivkey" API call allows one to import a private key and save it with a label. Is the "label" in the API call synonymous with an account used in the wallet?
9
votes
4answers
6k views

Is 12-word seed phrase safe enough?

Is 12-word seed phrase (as used by Electrum for example) safe enough for generating an offline wallet? My understanding is this: 2048 words pool make 11 bits of entrophy per word. 12 words in seed ...
9
votes
1answer
221 views

One dataset for many wallets… how?

It takes a while to download and process the transaction log. Doing that for dozens of wallets would be a big waste. I want to run just one client full time as a log processor. Then for each wallet, ...
9
votes
1answer
658 views

How to configure the official bitcoin client to conveniently use offline wallets?

This is a follow up question to "How can I keep my wallet secure?" Is there a portable (at least Win32&64/Linux) to configure the official bitcoin client to use only offline wallets to be ...
9
votes
1answer
752 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 ...
9
votes
2answers
3k views

Is there a way to change the wallet.dat location without changing the entire data directory?

I know that Bitcoin supports the -datadir command line option which specifies that the wallet.dat and blockchain should be stored in a custom location rather than %appdata%\roaming\bitcoin but is ...
9
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1answer
799 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
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2answers
7k views

What if a transaction is made to a wallet that doesn't exist?

Wallets can be created offline, and transactions can be made to that completely offline wallet through by obtaining that wallet address. Now, when the guy owning the offline wallet goes online, his ...
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....

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