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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Creating HD wallet using Blockcypher

I'm using Blockcypher to create an HD wallet, which requires me to send extended_public_key. How do I create the extended keys? While generating a new address using the API I'm getting something like: ...
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If someone cuts a standard Bitcoin private key into two (or more) equal parts, would another person be able to spend the coins after finding one part?

Someone has a standard (non-compressed) bitcoin private key (256 bits) and wishes to store it on paper. Being paranoid about someone finding the sheet of paper, he/she cuts the private key up and ...
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Can I be rewarded for discovering, creating, and proving bugs on Bitcoin?

There has never been a remittance history to this address. https://www.blockchain.com/btc/address/1JqPFnGPhHhy54zJKmC1MPiczzgFjCmzE9 public key : ...
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Does inserting a passphrase also changes the private key of a wallet.dat file

If I insert a passphrase to a wallet.dat file but also save copy of it before the passphrase, and then make a transfer to it, will I be able to use the old wallet version (Without the passphrase) to ...
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106 views

How to generate private/public key pairs in c++ using openssl

I have 2 questions: How can I generate private/public key pairs with c++ and openssl? I don't want them saved to a file. I want the values to be available to my c++ program. Given a private key, how ...
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Is there any hope for Bitcoins mined in early 2009? [duplicate]

Back in 2009, on the advice of a friend, I started mining Bitcoin. I also remember the exact period. It was in the period from the end of March 2009. until May 31, 2009. That year, on May 31, I moved ...
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104 views

Find a private key on my filesystem

I copied my private key to a file and I can't remember what the string begins with. Can you help me by giving me the different types of private key: number of characters and and with which characters ...
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54 views

If you lose your Bitcoin wallet Password, can you simply transfer private key to another bitcoin wallet provider?

If you lose your Bitcoin wallet password, can you simply transfer private key to another bitcoin wallet provider? I mean if I lost the password to the website where the wallet is stored, can I simply ...
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54 views

Curious about the Math that makes Bitcoin/Blockchain work ! Any good resources to learn it?

A bit of a background about me ; Computer Engineer but during my studies i didn't dive too deep into the maths , especially the maths that makes the blockchain and cryptography work looking for advice ...
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Can i recover missed phrase on p2sh wallet?

i have a wallet from past with p2sh format ,also i know my private key but i just lost 4 character of that,i tried few apps to recover that but no one works(they work on another wallets prefectly),i ...
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Where do I find a private key in litewallet.io? [closed]

I have created this public key LUv2h4kHH21bJSmab2UAvBarLmSckWFASS in a mobile app called litewallet.io which can be found here https://litewallet.io/ but I do not see an option in litewallet to ...
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62 views

Will taproot change public key generation?

Does taproot change how private/public keys/addresses are generated, or just how the transactions are signed? Also, I'd appreciate if someone could recommend me where to look for official sources of ...
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How can i recover my specific wallet using the 12 word mnemonic?

I just can't understand how can i use the 12 words instead of writing all the numbers related to the address/private/public keys. When i go to iancoleman.io the output is several addresses, private ...
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Is this a good recommendation as secure way to generate paper wallet via iOS app for non-technical user?

I have suggested to a non-technical friend to use this as a way to generate a paper wallet using an iphone. I'm trying to see if there are any pitfalls. I have used the air-gapped PC method for myself ...
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My private key represents an integer. True or false? Shortening issue

The formula (I assume that just the 1 formula exists) to convert this: WIF Private Key (5K5sohTSvd5nJ4oE9mxSVimT6Kfmz1LSaxHyxVsRVQyjJRXnfEK) into this Base64 Private Key pxhjsV/...
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bitcoin private key usage

My next question is how Private Key needed to spend coins. According to my understanding for transaction needed below steps: A wants to send 10 coin to B A make transaction example: from: A, to :B ...
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101 views

Best way to store private key from address

I make my own hot-wallet and wanted to know best way to store private key from address, because I need it for signing transactions. I tried store private key in my bitcoin core node, but I realized ...
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how target walled address is secure to save received amount?

What about if I (as a hacker) change the amount from 5 to 1 for any transaction and put signature with my (as a hacker) Private Key and mine that block again. Yes, I lose 1 coin, At the same time isn'...
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How to generate BIP85 Child Key using Bitcoin Explorer?

I've playing with 2 tools: Mnemonic Code Converter (site) Bitcoin Explorer (CLI) - bx command For the purpose of test I've used these tree BIP39 mnemonic words: client mixed great. Using a site I've ...
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Is it possible to you convert privkey to BIP39 mnemonic (or entropy)?

I've generated a private key using vanitygen command by: $ ./vanitygen 11 Difficulty: 256 Pattern: 11 Address: ...
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60 views

is bitcoin keyspace flawed?

guys need your expert guide I was doing a research on Bitcoin key space and i have found a mysterious thing that the first public which is actually the generator point is same as the last public key, ...
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What do people mean when they say that Bitcoin are "unconfiscateable"? [duplicate]

So all my Bitcoin are on an encrypted wallet.dat inside a VeraCrypted USB memstick inside a fireproof safe. While this might stop random a burglar, how does it stop the government from confiscating ...
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139 views

Why MakeNewKey in key.cpp isn't called when getnewaddress or generate

Hi I'm student studying bitcoin-core. I tested bitcoin regtest mode, and I want to know when CKey::MakeNewKey() is called. when I do this, bitcoin-cli -regtest createwallet "wallet1" ...
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140 views

Signature doesn't prove that the owner of a Private Key produced a given message

Let's assume I am a developer of Bitcoin wallet. If I create a private key without implementing a seed phrase methodology (not using the principles of BIP32 and BIP39), is there at least the slightest ...
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Is it doable to get the private keys from a Bisq wallet?

I do not mean getting the seed phrase - this I've already backed up. I do not see such a possibility from Bisq's GUI. Is it doable to get the private key of a particular address of a Bisq wallet (much ...
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270 views

Generate BTC Private key from user string input

I am looking to generate a Bitcoin Address from an user input text (like the good old days Brainwallet). User input a "Text string" and based on this text string generate the corresponding ...
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209 views

As a developer, what steps do I need to take to generate private-public keys?

When developing (I'm using Apple Swift), what steps are needed in order to independently create my own pair of private-public keys (with the ability to restore a private key from a mnemonic phrase)? ...
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Schnorr signature key storage

So everyone talks about Schnorr signatures and Taproot when talking about Bitcoin. I would like to know if there is any standard that they will use to store the keys used in this algorithm. And also I ...
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2answers
546 views

How to protect my private key from an unexpected new owner of the address that already belongs to me?

I understand that the situation I am describing is unlikely (because we have 1.46 Quindecillion possible Bitcoin addresses), but let's imagine that someone generated the same address as mine. Is there ...
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60 views

How can I get transction destination address from raw transaction data?

I am writing a program that reads Bitcoin transactions from .blk files and performs some analysis on them. I would like to get transaction destination address (like in some transaction explorers: link....
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169 views

Obtaining private key from mnemonic keywords

A customer of us can't remember which wallet he has used before (in 2014), but he still knows his public wallet address and als the 12 words for recovery. We have a choice of 3 different wallets which ...
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71 views

Finally found an old transaction from 2009

The file contains the addrStr Balance Amount sent (0) And such and then 2 transactions The address does show the 50 bitcoin. One of the 2 transactions also show the same. However I’m not sure how to ...
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88 views

`getdescriptorinfo` for private key

Public key: bitcoin-cli getdescriptorinfo "wpkh(027fda10f37e6c637a1cfeba2cbada86de36f28e63d4ded9e1314117739f6419a9)" { "descriptor": "wpkh(...
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312 views

how to convert WIF key return to HEX format

any one knows how to convert WIF key return to hex format please also let me know if the private key is out side range of ecc then how to import it to some wallet ?
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Why can't bitcoin be stolen in the following manner? [duplicate]

Assume I'm a miner. I would have the complete UTXO set with me. Let us say I try generating random keys and hash the public keys generated and compare it with the utxo set until I find a match. When I ...
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76 views

Are Satoshi's satoshis less secure than they should be?

So, Satoshi mined a bunch of BTC early on (but not in a "pre-mine" way), and has not moved them ever since. Doesn't that mean that his coins thus uses the very earliest "format", ...
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If hacker get my 24-word-recovery-phrase in random order, how long will it take to get my private key?

I am considering splitting my private key into two parts. One is 24 words in random order, the other is a paper with order (numbers from 1 to 24). If someone gets the paper with 24 words writing on it ...
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32 views

Creating multiple bitcoin receipt wallet

Suppose I want to send 10 000 sats to 10 different "receipt" address so that I own the 10 private keys associated with these addresses and can distribute them, the fact that the receiver ...
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114 views

I have reinstalled my PC and lost BitcoinCore, still have the Private Key, can i get my Wallet back?

so i have reinstalled my PC a few years ago and lost my BitcoinCore Wallet, i still have the PrivateKey.. is there someway to get the Wallet back?
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How to sync AirGap Vault with its Wallet

How long does it take to sync AirGap Vault/Wallet together and does the syncing process require internet? And is it possible to sync Airgap Vault with electrum wallet?
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Am I being scammed from Forex-Billionaires.com? [duplicate]

Has anyone used Forex-Billionaires.com? I invested in BTC and am now trying to get a withdrawal. I gave them my CashApp wallet address but now they are saying I have to let them generate a private key ...
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Why does a WIF include the network?

When creating a WIF from a private key, you have to insert a special byte at the beginning of the hex string, before starting hashing and adding the checksum: 0x80 for the MainNet or 0xef for the ...
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71 views

Is it possible to find additional key pairs resulting in the same address that I already control?

I'm not really well versed in the necessary terminology to get the answer I need from searching. As I understand, there are 2^160 possible addresses, and 2^256 possible private keys, so each address ...
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What exactly is "privatekeys.pw"?

Today, I stumbled upon this bizarre website: https://privatekeys.pw/ Bitcoin Private Keys Directory The FAQ makes no sense at all and doesn't explain what it is about whatsoever. What could they be ...
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How do I get my Bitcoin private keys from app.thorswap.finance which is a native BTC cross chain swapping system?

I'm testing out app.thorswap.finance for native bitcoin. Supposedly Thorchain is a cross chain swapping service with no centralized parties. Going to the app, I generated a keystore file and it comes ...
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122 views

Can you get the seed phrase of a HD wallet from the private key of one of the wallets?

Let us say I have a HD wallet. Can I get it’s seed phrase from the private key of one of its wallets? Also are seed phrases just easy to remember private keys? If so does that mean that from the seed ...
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92 views

How do you generate a Bitcoin wallet by hand?

I am interested in the exact process for generating the various components of a Bitcoin wallet by hand. Specifically, the components I'm interested in are: Private Key Public Key Public Key Hash ...
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100 views

public key from private key math

Please guide me if following is the actual math to drive public key from a private key then how would this apply to generate public key from private key 1 please guide me step by step Private keys and ...
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How many bytes of entropy are recommended for seeding a mnemonic phrase?

If I wanted to generate a 12 word mnemonic, how many additional bytes of entropy is recommended I use?
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131 views

Python Code - import error : cannot import name "privtopub" from 'bitcoin'

Hello everyone when I start this code on PYCHARM looks like no problem. But when I turned this code from python to exe and exe don't start and it says: import error: cannot import name "...

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