Questions tagged [private-key]
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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Import old paper backup (WIF private key) into modern Bitcoin-QT
When trying to import a WIF private key into Bitcoin-QT i get this error:
Only legacy wallets are supported by this command (code -4)
How can one import a private key on a non-legacy wallet?
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Can I use 2 individual private keys to spend from my Bip32 HD 2 or 2 multisig?
Example keys are fake:
If I build a 2 of 2 in Sparrow or any Bip32 Determ wallet, with P2WSH native segwit, and ONLY send funds to the very FIRST receiving address:
m/48'/0'/0'/2'/0/0: ...
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sweep 52 Character private key beginning with L
I'm trying to sweep an unencrypted private key, created with bitaddress.org 4 years ago into, Electrum. I also gave these to family with small amounts on, so need to figure this out before I go down ...
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How to recover Bitcoin wallet? [closed]
After updated the BitPay APP, I logged back in, and my bitcoin has a zero balance. I have the 12 recovery phrases. But when entering these words, a message pop up "Something went wrong, Invalid ...
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Bip32 Root Key in Metamask Signature? [closed]
I recently fell victim to an inferno contract that took a significant amount of my ERC-20 coins. I realize that this is a Bitcoin site, but a white hat hacker approached and offered to help, and told ...
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How to get scriptPubKey from public key hash
My goal is to create a transaction. For that I need to know the following things:
The private key signing the transaction.
Who can spend the bitcoins that I'm sending.
Valid UTXOs that the sender can ...
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Decrypt an encrypted mkey from a corrupt Bitcoin Core wallet.dat file
I have a 94 digit encrypted mkey that I obtained from my corrupted bitcoin core wallet.dat file.
I also have the password, the salt, and the number of iterations.
Using the password I’m unable to send ...
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Public key factors - but what's next?
Let's say I found (I know, impossible) public key factors. What to do with them next to compute original private key for that public key?
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Is Clux Wallet Genuine? I am asked to add funds to my Clux Wallet in order tp generate a private key [duplicate]
I am new to crypto trading. My crypto trader refused to send the earnings to Binance or WazirX saying there are issues with these wallets on their side. And deposited my funds in a crypto wallet ...
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What if I delete the wallet file but still have my private key
I am just trying to learn more about bitcoin. My question is what if i delete the wallet file from my computer but I still have my private key, still I be able to access my wallet?
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Why are unused offline generated addresses showing up on blockchain.com [duplicate]
I've created two addresses using the nodejs javascript library 'bitcoinjs-lib' version 5.2.0.
In both cases if I enter them into blockchain.com, they show a zero balance with zero transactions. I ...
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Is a private key that is created with an additional passphrase included in the existing 24 worded private key basket?
We know that there are finite number of private keys out there that are derived from 24 words. If I create a wallet with an additional 25th word passphrase (which is not in the existing 2048 seed ...
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What is the purpose of the different types of extended keys, as well as some of its other elements?
I have a few questions about the extended public/private key, i.e. the purpose of its elements.
Namely, according to the BIP32 standard, the "format" of the extended key is as follows:
[ ...
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Do I need to store my hardware wallet's derivation path?
"Not your keys, not your coins" is common mantra. I thought all I needed to do was to safeguard my private keys (via hardware wallet, cold storage) to be able to reconstitute my BTC at any ...
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How can I manually (on paper) calculate a Bitcoin public key from a private key?
I am interested in generating a Bitcoin address by hand for security's sake. After I choose/generate a private key, how do I generate the public key?
From there, how would I double check my work?
...
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How three addresses from the same (un)compressed key works?
As far as I understand, if we have one private key, we're able to create 4+ matching addresses. I'll use famous int(1) as a private key for example here. Then we can create:
P2PKH from the compressed ...
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Bitcoin keys explained?
I found a diagram, which explains in an excellent way how to convert a public key to a P2PKH address here(1). Also, I found a good map of types of addresses/keys here(2) and a list of all possible ...
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multiple multisigs with minimal cold devices
I want to maximize security but minimize complexity. Let's say I have large enough sums of BTC that need to be secured into three buckets:
KYC Personal BTC
Non KYC Personal BTC (mined)
KYC Company ...
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is it possible to recover my exodus wallet, from a backup file?
I have a one year old back-up (exodus.zip). When extracted from ZIP and placed that folder in AppData/Roaming/ now it asks for passwords which I don't remember anymore.
Inside the 'exodus.wallet' ...
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Is 24 words seed safer than 12 words in terms of bruteforcing the private key
Is a 24 words seed more secure than 12 words in terms of brute forcing the private key?
From the following answer I read that a private key is always "just" 128bit even when derived from 24 ...
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Terminology on what do hardware wallets actually store?
Going by the BIP39 standard, it seems that what is stored is the seed (lets call it A). But what is confusing is that people elsewhere seem to be conflating the mnemonic (the 24 or 12 word list, lets ...
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multisig vs singlesig
Due to the Ledger debacle I have purchased a Coldcard hardware wallet. I made this decision partly based on watching the Antonopoulos live stream last week. Until now I have backed up my bitcoin on a ...
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Wallet import issues
I had saved 2 private keys starting with K and L respectively which is a 52 characters key along with address some small balances of $300 thought i lost them luckily it was saved in my gdrive But when ...
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Command line generated address can't recover with seed phrase, what am I missing?
I have generated a bitcoin address using the following commands along with a ruby script for compression.
First I generate a key using echo "24 word seed phrase BIP 39" | openssl sha256
Then ...
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Customizing the algoritm of the private key of Bitcoin (js)
Is there a way to change the Bitcoin private key creation algorithm so that only private keys are created whose extracted addresses start with "1a"?
A guide on the feasibility of this idea ...
Ali Pourshahrbabaki
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Are satoshis private keys easier to find than modern ones (given proper security in both cases)?
I read that back then, you had entropies of 128 bit instead of 256. Like 12 vs 24 word mnemonic seed phrases. Are their wallets easier to brute force than other ones?
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Are there CoinSwap-like protocols that don't need access to raw private keys?
Say you would like to atomically swap Bitcoins with a counterparty, without an obvious on-chain link such as a hash pre-image used in an HTLC-like Bitcoin Script.
The constructions I am aware of ...
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What am I doing wrong in calculating child private key in HD wallets and reversing back parent private key?
I'm trying to understand the process of creating the children's private key and, in the case of knowing the children's private key and the left 256-bit hash result, the process of returning the parent'...
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How are children's private keys in HD wallets obtained and how can knowing them reveal the parent's private key?
I'm reading master bitcoin book and I came to the part related to HD wallets and how to create a Child private key (link). It says the following:
The parent public key, chain code, and the index ...
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Xpriv can be calculated from the xpub + child private key?
I heard Michael Flaxman say that if an attacker obtains your xpub key as well as any one of your child private keys, they can calculate your master private key?
Why is this not a huge deal? Where are ...
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Which are considered not-for-public fields of the ones returned by getaddressinfo?
Create a new address in a descriptor wallet, then getaddressinfo - a result like the following is output:
{
"result": {
"address": "bc1qf...",
"...
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Minimal value for xprv
If we have "smallest" (all characters minimal ASCII) pub address 1111111111111111111114oLvT2 which does not work in the network,
and smallest pub address 111111111111111111112BEH2ro which ...
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My multibit core synchronization is stuck Whats the reason [duplicate]
For the past six days since I downloaded the multibit core, I wanted to recover my wallet I still have my recovery phrase and password, and open the multibit core and the wallet was synchronization ...
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Mini private key format
I want to understand why the format for a mini private key necessarily has to start with an "S". Why is this? Is there a specific reason for it? I would imagine so, but I don't know what it ...
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How to generate a bitcoin public key from an existing private key using openssl?
I want to generate bitcoin priv/pub key manually.
I generated random binary numbers by flipping some coins and converted them to hex.
Now,I got a bitcoin private key
in hex:...
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What does it mean for an integer to be a member of secp256k1 group?
I'm reading the spending section of BIP47:
Alice calculates a scalar shared secret using the x value of S:
s = SHA256(Sx).
If the value of s is not in the secp256k1 group, Alice MUST increment the ...
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Electrum private key sweep
I'm trying to sweep private keys in Electrum but it asks to input: p2pkh:, p2wpkh: or p2wpkh-p2sh before the keys based on the address. I only have the keys but no address, how can I proceed with this ...
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Are there old school Base58 or hex private keys behind a newer HW wallet multisig public address? And can I use them to spend?
I know from using bip39 to build wallets, that each receiving address and corresponding public address does have a base58 private key behind it. And if I know this private key, I can sweep it ...
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How to use unencrypted mkey to derive all private keys by BIP32 path？
The wallet is damaged, I only have the unencrypted master private key, How to recover the wallet?
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How to restore a wallet with only the master private key
The wallet is damaged, I only have the encrypted master private key and password, is it possible to recover the wallet?
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Keep getting wrong bitcoin addresses
I'm trying to write a script that can generate a private key and the compressed and uncompressed addresses. It seems to work however the private key doesn't correspond to the addresses generated. Can'...
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How can I get a bitcoin address which allows a customer to see funds of their wallet but not deposit? Deposit needs to be done by a 3rd party
According to another user here I am mistaken about how public keys work. I want a customer to have a wallet to which they have a public address to view funds only and I have another public address to ...
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Potential new BIP Proposal?
I’ve been working on a project which will help manufacturers of physical products and NFT makers to distribute their NFTs in the real world. My solution is to box up a paper wallet loaded with the NFT....
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NameError at /register name 'privtopub' is not defined
from django.shortcuts import render, redirect
from django.contrib.auth.models import User, auth
from django.contrib import messages
from .models import Details
from bitcoin import *
import random
...
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how to generate private keys from derivation paths or from another private keys?
Based on the answer HERE
The following is possible
entropy --> random number --> phrase --> private key --> public key --> address
| ^ |
...
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Is it easier to reverse the entire blockchain than to guess a private key?
If I am not mistaken you could in theory revert the entire blockchain, by producing nonces which probabilistically speaking required more work.
So the (hypothetical) question is: if I wanted to steal ...
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Private key problem, getting an error (code -4) please help [duplicate]
im trying to get my private key, i did wallet passphrase 600, got null response, did dumpprivkey "wallet" and i get

This type of wallet does not support this command (code -4)
anyone know ...
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Bitcoin script and unsecure ScriptPubKey
The following is taken from problem 3 in HW1 of CS 251 Stanford's course (https://cs251.stanford.edu/syllabus.html).
Alice is on a backpacking trip and is worried about her devices containing private ...
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I have a privat key and my wallet adress but dont know where I made my wallet
How can I transfer the money to for example binance.
I have the private key and my wallet address but dont remember where I made the wallet (on which site).
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What is the difference between a push-based transaction model and a pull-based transaction model?
What is a pull-based transaction model? What is a push-based transaction model?
I've heard people describe bitcoin as a push-based transaction model.
I've heard people describe traditional financial ...
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