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Questions tagged [private-key]

This tag should be used for questions pertaining to private keys. Private keys are used for signing transactions and allow the holder of the private key to spend the Bitcoin associated with the address derived from the private key.

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841 views

Import private keys from Multibit into Armory?

I am attempting to import a private key that was made in Multibit, into Armory. I am able to restore this key into other wallets, such as the Android Bitcoin Wallet, Mycelium and Electrum, but when I ...
2
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0answers
524 views

Service or application to auto sweep specified BTC private keys?

Is there a service or an application that will auto sweep a bitcoin private key to your own wallet? I want to monitor a few private keys and sweep them once they receive funds in it.
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0answers
449 views

Unknown key format when importing Private Key from Multibit to Blockchain.info

I'm trying to import a Private Key from MultiBit into Blockchain.info, but get an error saying "Error importing private key: Unknown Key Format". Is my MultiBit key in the wrong format or something?
2
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0answers
824 views

php private key to wallet import format (wip)

I have been writing a php file intended to create a bitcoin private key and change it to wallet import format. The issue is when I try a command in a gnome-terminal such as: bitcoin-cli importprivkey ...
2
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0answers
801 views

Where can I find a C or C++ implementation of converting bitcoin privatekey to bitcoin public key and bitcoin address?

There are versions in python and some such things, but I need a C version (or at least C++). I do have the sha256, RMD160 in C already, and those functions are called. Thank you.
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0answers
205 views

If I accidentally delete an address with funds

If the address is deleted (while using an online provider like CoinJar), does that mean the coins are lost for good? Or all public/private keys are still held by the company and the address deleted (...
2
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0answers
276 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 (...
2
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0answers
110 views

What are the preferred UI images for Bitcoin Address & private key and multi-signature key?

How should I visually distinguish between the different types of keys available for the end user? So far the common keys I've come across are Private key (not to be shared) Bitcoin address (to be ...
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0answers
71 views

When develop a mobile cryptocurrency wallet, is there any good practice to store private key?

As i know, some wallet like electrum store private keys in client filesystem with encrypted and other web wallet like ether metamask store it on browser storage. And in the mobile wallet, is there any ...
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0answers
67 views

My private key has compressed public keys; how do I know how much coin I have?

I exported my private key to my desktop, then I tried to copy/paste to another wallet, it is multibit, or bitcoin, from mining back in 2013, 2014, 2015. I'm stuck and don't know how much coin I have. ...
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0answers
119 views

Bitaddress.org - How does it use random mouse movement?

I am reviewing https://www.bitaddress.org/. I have downloaded the code from Github. I see first screen they show is to increase randomness on the private key generated. I am trying to figure it out ...
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0answers
1k views

I sent litecoin to my bitcoin address, on my nano ledger

So I am very new to cryptocurrencies and have already made my first mistake. I used shapeshift.io to transfer bitcoin to litecoin, and entered a bitcoin address as the recipient to receive the ...
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0answers
336 views

Is a wallet simply a folder of private keys?

I try to understand how a wallet actually works. I know there are lots of resources around the internet, but I still can't find simple and concise answers for basic questions about wallets and ...
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0answers
195 views

Get multisig HD Wallet private keys

If i want to get the private and public key of all transactions that have happened on my multisig wallet. How would i do that? It's a 2-2 multisig. I have xPrivkey from my computer and xPrivkey from ...
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0answers
201 views

how to import my wallet from blockchain.info into bitcoin-qt?

I have read the related discussions about how to import a wallet and though they are close, the answers does not help with this problem so I'm asking it here and now. I have my bitcoin public ...
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0answers
2k views

Importing paper wallet into Electrum

I'm attempting to understand the workflow of sending bitcoin to a paper wallet and retrieving it. I'm using small amounts until I get the hang of things. I've created and sent bitcoin successfully to ...
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0answers
520 views

Is the following a valid bitcoin private key? - FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE

In secp256k1 (Bitcoin's elliptic curve) it is defined that valid private keys may range from 1 to FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE BAAEDCE6 AF48A03B BFD25E8C D0364141 - 1. (https://crypto....
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0answers
564 views

Stealing of encryption keys

I am new to source code of bitcoin , but so far i have analyzed the source code it seems that encryption keys can be stolen from memory by this technique. This is something hackers often do to steal ...
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0answers
6k views

Unable to remove bitcoins from watch-only address

I'm new to bitcoin and my situation is this: I installed Bitcoin Classic wallet, then sent bitcoins to it from Coinbase before the entire blockchain was finished syncing. The transaction timed out and ...
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0answers
78 views

Does Trezor have any shortfalls security-wise?

Or do you have a recommendation for another cold wallet?
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0answers
66 views

Java bitcoinj: semantics of 'decompress' on encrypted key

Calling the decompress method on an encrypted ECKey object yields an ECKey object which has no private key (only public). I personally would have expected to get the same encrypted key in uncompressed ...
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0answers
1k views

MultiBit HD and exporting private keys

Before I wrote here I was read this post: How can you extract private keys from MultiBit HD? and few others. I know from above thread that it is hard to extract private keys from MultiBit HD wallet, ...
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0answers
782 views

Can Ethereum support compressed secp256k1 public keys to compute Keccak addresses?

Starting from a private key, a working functional example provides details for how an Ethereum address can be calculated from an uncompressed secp256k1 elliptic curve public key. This functional ...
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0answers
2k views

Same identical R value of all transaction not provide corresponding privatekey

ECDSA Signature and the “z” value from above link learn calculation of z value and to get private key https://blockchain.info/tx/9ec4bc49e828d924af1d1029cacf709431abbde46d59554b62bc270e3b29c4b1 ...
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0answers
333 views

How do I obtain the “Private Key” from my Armory Paper Backup

1) My laptop with Armory and bitcoin has been stolen. However, I have a Paper Backup - which gives: Wallet Version / Wallet ID / Wallet Name / Backup Type / Root Key (72 letters) - but NO "Chain ...
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0answers
352 views

Decentralised escrow / distributed private key generation

Issue Hi As many others i am curious in addressing distributed escrow problem (not just for bitcoin). As it stands now there are no decentralised escrows. All escrow services are based on trust in ...
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0answers
822 views

Problem with importing key to blockchain.info

Problem downloaded my wallet into a drive which does not have enough disk space left. has not currently synced yet transferred bitcoins by mistake whilst it was syncing I have backed up my ...
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0answers
17 views

Add bitcoin private key to Azure Key Vault

I have an idea to store bitcoin/altcoin private keys in Azure Key Vault as cryptographic keys. Azure Key Vault allow execute some cryptographics methods with its (for examle hashing or encryption) ...
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0answers
23 views

Can the window.crypto.subtle generateKey function be used to build bitcoin addresses?

I've been working on some code to generate bitcoin addresses on the client side using JavaScript. I know there are lots of repos for doing this, but I wanted to make my own from scratch for ...
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0answers
43 views

ELT Wallet is lost how do I get it back

I accidentally hit the create new wallet button when I was half asleep and when it said enter pin I entered the one for my original wallet. Now I cannot get to the original wallet and I cannot find my ...
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0answers
72 views

I want to find my private key using my extended private key

How can I find my private key to all my imported address that hold funds? Please help me. Thank you.
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0answers
59 views

How to find bitcoin address from bitcoin privatekey

How to find bitcoin address from bitcoin privatekey using bitcoind json rpc or any other way?
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0answers
290 views

On what kind of random number generator does each wallet create the secret key based?

Bitcoin core, OpenLedger, METAMASK, or other famous wallets(the type of wallets does not matter) create private keys by using random number generator, and I would like to know they use what kind of ...
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0answers
117 views

Lost Last two Characters of a base58 Compressed Key, Can it be recovered using checksum?

My key starts with L1bt9sxxx(50 char) Base 58, compressed private key. I had lost last two characters of my. Is it possible to recover using checksum tool, If so, please provide script to Bruteforce. ...
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0answers
74 views

Can someone find out that several public keys belong to one owner?

"As an additional firewall, a new key pair should be used for each transaction to keep them from being linked to a common owner. Some linking is still unavoidable with multi-input transactions, which ...
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0answers
94 views

qt based wallet (altcoin) - can't get privkey

just installed NuMuS-qt wallet. Could see privkey in console. Then Encrypted it. But now getting the following error when in Consolde entering passphrase:- Error: RPC server was not started, use ...
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0answers
33 views

Can one _see_ one's private key in, and _transcribe_ it out of … a laptop wallet?

Suppose I download bitcoin wallet software, or Armory, and create a new account, on my laptop. Can I see and transcribe the newly-created private key? Then suppose I receive some Bitcoin into this ...
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0answers
90 views

Need help with 96 character privkey for bitcoin

Need help with old file, was going through my old btc files and found some old wallets in the format below, Im not sure how to convert the 96 character encrypted privkey to a standard privkey to ...
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0answers
790 views

how to get the private key for an used address ?

I have used an address generated by Exodus wallet. whats happened is that my bitcoin confirmed but didn't receive any thing on Exodus wallet. I want now to import private key in another wallet. but ...
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0answers
201 views

Multi signature wallet I'll know the private key

So my situation is I have to create a multi-signature address for our business (was going to do something like this: https://github.com/anders94/bitcoin-2-of-3-multisig). My question is if I make it ...
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0answers
18 views

how to implement different addresses for different transactions

Does one private key has only one address? If it is, and I want to use different addresses for different transactions, does this mean that I have to generate a new private key and address pair for ...
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0answers
31 views

i how can i keep backup of users bitcoin address?

i have task to create wallet like system which will generate getnewaddress() for each user,using bitcoind instance i have heard that it can generate only 100 keypool so first backup file will ...
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0answers
265 views

Mnemonic not recovering a key in blockchain.info’s wallet?

Scenario: I have a wallet at blockchain I lost the paper with the second password and private key I have the wallet address, the login password to the wallet, and 12 word mnemonics I was suggested to ...
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0answers
88 views

BTX sent to BTC QT wallet sits unspent on BTX blockchain, same keys

I mistakenly sent an amount of BTX, a bitcoin fork, to a BTC QT wallet. It sat on the BTC blockchain unspent, but was then moved to the BTX blockchain, where it sits unspent. I deleted the BTC QT ...
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0answers
1k views

How to decrypt my bitcoin?

I encryted several bitcoin 4 years ago and have the file and the password. I've now installed Bitcoin Wallet on my Android smartphone. How do I go about getting the file decrypted? I'm a complete ...
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0answers
3k views

To get Public key from Private key

How can I get the corresponding public key of a particular private key using bitcoin core console commands? , just as we can have private key of particular address using dumpprivkey and public key ...
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0answers
403 views

What offline programs exist to generate deterministic BITCOIN address?

I am looking for a program (code or software, called the way you want) that can run totally autonomously, not requiring to be connected to Internet or to have a specific bitcoin software installed (...
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0answers
252 views

Is there a way to send bitcoins directly from blockchain?

My wallet won't sync for last 24 hours and my coins are frozen in blockchain. Is there a way to get them on my other wallet? I know the address, and my broken wallet is giving me some keys, but don't ...
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0answers
140 views

Blockchain wallet dilema

my desktop wallet icon defaults for some reason to a Watch wallet on entering my PW - of course I cannot get at my money from there and I am at loss to solve the problem - Blockchain.info support say ...
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0answers
512 views

Private key does not match bitcoin address

Here is my situation. I have submitted a request to blockchain support 2 days ago Wallet created on blockchain.info Received bitcoins from someone when i try to send bitcoins to another wallet, i ...