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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1 answer
46 views

What's the raw logic for converting a seed phrase to private key

I'm interested in how an actual seed phrase is converted into a private key. I think it's a long the lines of. Generate 11 word seed phrase Convert the numbers into binary Add up the binary numbers ...
2 votes
1 answer
113 views

Partial private key recovery

I had the pleasure of setting up a Bitcoin wallet using the Blue Wallet app and diligently noted down the 52 characters of my private key on a piece of paper for backup purposes. Upon revisiting the ...
1 vote
0 answers
30 views

Offline Paper Wallet Creation

I was wanting create an offline Paper Wallet, ideally, without using a computer for nothing more that verification. So, that's how I came across Entropy. What is the risk of attempting to create a ...
0 votes
1 answer
80 views

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 ...
1 vote
1 answer
3k views

Bitcoin private key and address generator in golang

I am looking for a golang alternative to https://github.com/richardkiss/pycoin . So far I have found https://github.com/btcsuite/btcd but have not figured out how to generate private keys and ...
0 votes
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Help me recover my lost Bitcoin wallet [duplicate]

In 2015, I bought around 10 BTC at $400 each. I didn't realize I had them until one of these days, while going through my old Skype conversations with a friend, I found out that I had sold him a ...
0 votes
1 answer
342 views

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 ...
0 votes
2 answers
168 views

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?
1 vote
1 answer
59 views

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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0 answers
19 views

How to know the number of digits in the decimals place in division results (ECC SECP256K1)?

p - is the order of the finite field n - is the order of the group. Private keys can range from 1 (the generator point G) to n - 1. All the private keys (Priv) lie in certain ranges of 2. 2^a < ...
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2 answers
53 views

Does the 25th password make the wallet harder to crack?

Lets say you have a 24 word seed bitcoin wallet. And then you add a password that's 96 characters long. Does that make it twice as hard to geuss? Is this new private/public key generated completely ...
1 vote
0 answers
43 views

How to generate private key from 24-word mnemonic phrase? (Native Segwit)

When Googling, entire first page consists of people linking to online "calculators" (no thank you) or outdated bip39 code which no longer works. I have a 24 word seed phrase (from ledger ...
0 votes
1 answer
417 views

Is there a CUDA binary to convert a brainwallet string to a BTC address?

I am looking for a CUDA program which will take a single argument, a brainwallet password, and output a BTC address. After reading through several threads on how to convert passwords to public keys, ...
0 votes
1 answer
302 views

how to get masterkey and consequent wallet keys from root seed?

So basically i am trying to create my own crypto wallet application in python, i have generated the random entropy, calculated the checksum, generated the 12 words and then generated the root seed ...
0 votes
1 answer
116 views

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 ...
1 vote
1 answer
44 views

Deriving bip84 addresses with python

Does anyone have a python script deriving the bip84 addresses from the private key? I do have the private root key so I don't need to go all the way from the private key. I'd like to do this with the ...
4 votes
1 answer
1k 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 ...
-11 votes
1 answer
1k views

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 : ...
0 votes
1 answer
198 views

Coinbase tells me to send from electrum to my private key?

A few years ago I sent my BTC from Coinbase to Electrum on windows PC. That apparently went fine because Electrum showed the correct balance. Then I received 12 keywords and a hash (starting with 17)...
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0 answers
19 views

How to get descriptors private key [duplicate]

When I trie to use the dumpprivkey and then my address.i get an error it says it is only available for legacy users only how can I fix tht problem
0 votes
1 answer
238 views

How to use Multisig feature on Bitcoin Core RPC in an online exchange?

I've craeted a small online exchange based on Bitcoin Core. The features in this application are: User send request to get a new address, and the Bitcoin Core generate a new one with defined ...
0 votes
1 answer
926 views

Using the Bitcoin python library to generate Private Key [Noob question]

I have done pip install bitcoin and then wrote the below code: from bitcoin import * private_key = random_key() print(private_key) Now I am getting this error: Traceback (most recent call last): ...
6 votes
1 answer
458 views

How can a collision attack reveal the private key?

From "Mastering Bitcoin: Programming the Open Blockchain 3d edition, Ch4" : All addresses based on hash functions are theoretically vulnerable to an attacker independently finding the same ...
0 votes
1 answer
269 views

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?
1 vote
1 answer
35 views

What is one word seed word exactly?

I have the following code import hashlib import binascii def word_to_private_key(word): sha256_hash = hashlib.sha256(word.encode()).digest() private_key = binascii.hexlify(sha256_hash).decode(...
0 votes
0 answers
669 views

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' ...
1 vote
2 answers
169 views

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?
0 votes
0 answers
78 views

Is it safe to share half of the private key in WIF format?

Assuming I would generate my keys on https://www.bitaddress.org. Is it safe to share the following four pieces of data? One half of the private key. The public key. An SHA512 hash of the private key. ...
0 votes
1 answer
174 views

Retrieving a WIF bits private key

Suppose I have a Wif private key from Electrum 4.0.9: L2pt3eVopnxfBBvMwrJV2saZeAyQfF77UQSH5WGj5q9LBS6WWBmN ( this one or the other generated from the seed is non used of course ) with a corresponding ...
4 votes
1 answer
75 views

Why checksum the privkey in WIF?

Why does the WIF conversion process mandate the double-hash-and-append on the 80+privkey / 80+privkey+01 string, given that nobody is questioning the correctness of that privkey number?
1 vote
2 answers
183 views

List transactions after losing wallet and private key?

I have made various transactions with my wallet using bitcoind. If I lose my wallet (and private key) and somebody else somehow knows my private key and does some transactions, is it possible for me ...
1 vote
2 answers
5k views

Is it possible to bruteforce the seed?

Is it true that the "seed words" bruteforce more reliable for to get profit than searching of a "random number" for to open some profitable outputs? The last one is impossible due to math, but the ...
0 votes
3 answers
399 views

share private key [blockchain]

What happend if I share my private key with my partner? Can we spend bitcoins together without collisons from the same wallet? Me and my friend are using BlockChain.info - what will happend when we ...
-1 votes
1 answer
259 views

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 ...
-2 votes
1 answer
681 views

What's the most efficient method to try and guess a wallet's private key?

I have a Bitcoin address that I want to guess its private key. What's the most efficient way to do it? I don't mean "use a trillion servers" but "use this program this way". Note ...
3 votes
1 answer
294 views

Key Derivation - CKDprv & CKDpub

I would like to replicate this derivation of keys. Chain m ext pub: xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8 ext prv: ...
1 vote
1 answer
256 views

Two private keys whose corresponding public keys have the same x-value?

For a given integer m, there are at most two points in the secp256k1 curve whose x-value is m. Have we ever actually found a pair of distinct private keys whose corresponding public keys have the same ...
-4 votes
3 answers
1k views

Can someone please find the private key to this bitcoin address?

I need help this is URGENT! find the private key and send it to me. 3PbacVZwS2L5i9C2Cmz9rPu8s4qjyYkufk I really need this to pay for a bill. I have a deadline and have been trying to figure it out ...
2 votes
1 answer
70 views

What is the default private key type for legacy and segwit addresses?

In a library I'm reading, I can export a private key to a WIF, which takes a compressed boolean parameter. It reads: "...False if you want a standard WIF export (the most standard option). True ...
0 votes
2 answers
528 views

How Can I import Multibit Private Key into Electrum or Blockchain.com

I am having trouble importing a multibit private key into electrum and blockchaing.com. The key is declared invalid. the key looks like this U2FsdGVkX1+vNknxxxxxxxxxxxxxxU/KiWdlFKlBCv0y613C+...
0 votes
1 answer
1k views

Share the same private key on two ledger devices

I have 2 ledger device. Let's suppose one for me and one for my wife. We want to share the same bitcoin account. Is it a good practice to setup the first ledger and then restore the keywords on the ...
0 votes
3 answers
6k views

Encypted Private Key -> QR Code

I have a paper wallet with a public address and an encrypted private key ( with a passphrase ), but no QR code. So I need a way to generate a QR image, or manually input the key. Sadly QR generators ...
0 votes
1 answer
137 views

Bitcoin Wallet Recovery

Hypothetically, if you formatted over a hard drive and erased your wallet but had your private key and address written down- how would you once again regain access to your wallet?
1 vote
3 answers
809 views

How to generate these bitcoin addresses?

For the private key KwaZRh42fdQD4iUN6sy2GtEC5gfSAYXrQgp16KPV4Pxsspi5ChRb, I have the following addresses: 1N7jKvQ1fHezb61eNsGEaF4gcj5sQXhb2m (P2PKH) 14MNoFYWheu7sLkj8urvXCpYEdCuL4m2PH (P2PKH) ...
0 votes
0 answers
174 views

wallet.dat password recovey

everyone! I forgot the password for my wallet.dat, I tried to recover it myself, I’ve been working on it for a month now, but so far without success...at the moment I got to the pywallet.py program ...
1 vote
2 answers
280 views

Safest way of long term holding

I am considering holding Bitcoin for the long term. I have learned a few basics about the blockchain and BTC mechanisms, but still unable to find a complete guide on how to safely store bitcoin. How ...
1 vote
3 answers
1k views

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 ...
0 votes
2 answers
929 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 ...
0 votes
1 answer
69 views

Bitcoin Core for Mac not syncing, can't access private key

Wondering if you can help me guys, I'm new to using bitcoins and recently downloaded Bitcoin Core to my MacBook. I stupidly sent bitcoins to my wallet without realising i had to sync first, but it's ...
0 votes
0 answers
630 views

RSZ value with witness data

Have anyone got a script on how to find the RSZ value of a bitcoin transaction with witness data, scanned just by inputting the hashes? Will you please share your code? Or at least, point me to the ...

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