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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52 views

Accidentally Sent BTC to bitcoin core watch-only wallet with private keys disabled

I think I already know the answer to this, but I just want to make sure as it will result in a loss of funds. I have Specter desktop connected to my bitcoin-core. But because I also sometimes use the ...
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1answer
19 views

Is it possible to reach same address in HD wallets?

Is it possible to reach same address (same private key) with different mnemonics and different derivation paths in an implant based on BIP32,BIP39 & BIP44 combination?
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How can be proven that a signature is valid with it's public key

If someone wants to make a transaction, they need to sign the transaction data with their private key. For example Sign(transactionData, privateKey) creates the signature. What is exactly this Sign ...
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29 views

How to generate a very secure wallet with Electrum?

For a poor-mans glacier protocol, looking for: One private key – an alphanumeric string used to secure the funds The cold storage address – an alphanumeric string designating the virtual “location” of ...
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1answer
27 views

Import private key in HSM Luna SA

I need some clarification on how keys are imported into a HSM Luna SA. I should import BIP 32 private keys of multisign wallets. There are currently two keys: one for the user and one held by the ...
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36 views

When a BIP44 XPUB and one of its descendant keys get leaked, what's the worst that can happen?

I understand that BIP44 has one edge case vulnerability where if a hacker gets his hands on an Xpub and a private key from its descendants, he can compute the Xprv pair of the original Xpub and ...
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1answer
141 views

What is the math behind a private key BASE58 (P2PKH)

Using this link I can understand something about a private key BASE58 (P2PKH): "such encodings will always yield a 51-character string that starts with '5', or more specifically, either '5H', '5J'...
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2answers
51 views

How to change the field of the elliptic curve to the new value N while keeping the default Secp256k1 parameters?

I want to change the margin of the elliptic curve to the new N value, while doing so I want to keep the parameters Standard G-point Generator Secp256k1 that is, I want to replace: N = ...
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28 views

BIP 32 Private keys to be imported into HSM

Could someone explain to me how the import of private key in HSM works? Below is the information from the manual: Private Key Import/Export Private keys can be imported and exported with existing ...
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21 views

What is the fastes ways to get priv to pub at bitcoin in python ( compressed )?

What is they fastest lib, way to get compressed pub keys from priv keys ? i was try "bit" lib and "bitcoin python libs" but they slow and bitcoin( dont give compressed keys )
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Where are the exchange keys kept? [closed]

Following what happened in Kucoin, a doubt arises. Where are the exchange keys kept? Are HSMs not used for key storage?
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35 views

Import 256 bit private key

Can I import a 256 bit private key in a Wallet (binary format)? Or do I have to convert it in another format?
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38 views

If I only know my private key, can I still login to my wallet, even if this requires some calculations?

I keep my 12 word mnemonics carefully off line. But suppose I just had my private key left after some disaster or other could I then, after some procedures, log in to my wallet ? I can see that I can ...
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36 views

Public key management

There is something i am not sure to understand on bitcoin private/public keys and addresses. A new bitcoin user "U" first generates a private key. He can compute several public keys from ...
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1answer
76 views

How to generate Hash160 from a private key with the Bitcoin module

I want to fix the script code. The script generates from a random private key Bitcoin Address by function (pubtoaddr) and works on the Bitcoin module: https://github.com/primal100/pybitcointools/blob/...
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351 views

How can I recover the missing end of my private key?

I found this paper among my old stuff. What can you do with it? Is there any way to fill in the missing part?
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1answer
84 views

ECDSA public key to private key hex

I have an ecdsa public key how to get the private key of this public key; 0222d2deda24c03b2cc2b458c35780c62b6b5603c088709f17607b7ecf1399e4d7 how to solve this on python I am using Pydroid 3 on my ...
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422 views

How can a user or wallet have multiple addresses at all if out of a private key can be generated only a single public key?

A user of a wallet, regardelss of a version of a wallet, can generate as many addresses as he wants, right? Since an address is basically a public key, and in "private-public key" ...
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1answer
91 views

Wallet.dat Bitcoin core Privatekey Recovery

Is there any method from which we can manually calculate wallet privatekey from a protected bitcoin core wallet.dat file ? I was searching on it and find this , I think it is related to my topic https:...
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2answers
118 views

Private key to WIF process

I have a private key for a storage bitcoin wallet (there's not much in there I'm just testing methods) but it is in private key form and to import it to my main wallet I need to convert it into WIF. ...
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1answer
136 views

Can I recover btc sent to an incorrect address? (electrum)

So I have an electrum wallet and I sent about $150 in btc to it. That all worked but when I tried to send it to another address, it didn't go through. Looking at the transaction, the btc went to an ...
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1answer
57 views

Bitcoin's cryptographic protocol allows for leakage of information about one's Private Key, making recalculation of the private key possible?

Is it true that the cryptography which is used in bitcoin allows for leakage of information which could be used to recalculate the private key - IF you are continuously reusing the same public address ...
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2answers
58 views

library for validating bitcoin private and public keys

I am building a python script that gets a string and determines if it is a valid bitcoin private key or public key, and if so it returns its type/format (base58, BIP32, HexaDecimal etc.) and its ...
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26 views

Hash160 and Hash key [duplicate]

I can not find a way to get hashkeys. How do I get HASH160, HASH KEYS I have tried several options but no result or way forward.. I know both are wallet related. A friend is building a private ...
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60 views

Explain how unused addresses in wallet.dat have no balance when mining occurred for many months

I have a wallet.dat file with many zero transaction/(unused) addresses in it with keys assigned to each address. I’ve done research and there’s quite a bit of info about mining back in the day (2013-...
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1answer
99 views

What does this variable R mean

What does this variable R mean if it is the same in transaction signatures, and can I find S Z from the transaction I want an explanation or someone helps me to find the variables type address: ...
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1answer
214 views

i find r s z from tow transaction but the r value is not same

i need your help plase i find r s z from tow transaction but the r value is not same from this wallet 1XCPdWb6kk7PGfvbdRbRuNh51aPc4vqC7 this is information tx 1 ...
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53 views

how i can find private key from Y X Z [duplicate]

How can I find the private key with X and Y and Z in the transaction i have this ('THE R VALUE is :', '0cf435db180216f3aaa5c2cb8231cbccf2f6824fc0051396b45e4ab01bb0f5e3') ('THE S VALUE is :', '...
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1answer
86 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, ...
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1answer
50 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 ...
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26 views

How do I compute a private key, if I have two messages signed using the same nonce? [duplicate]

If I sign two messages with the same private key and nonce, it compromises security, making it possible to calculate the private key. I'm implementing a system (outside of bitcoin) where a message, ...
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1answer
102 views

How to get bitcoin bip32 public key from private key?

I need to know how to get the corresponding public key of a private key in hd-wallets, I don't need the derived ones but the public key who is related to the private I got. If there is an algorithm ...
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2answers
64 views

Correct Approach for Payments on Multiple Addresses

I have clients that would like to pay for services in BTC. TL;DR To generate a new payment address must I generate a new private key (essentially a new wallet)? Is it better to generate independent ...
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71 views

generating a private key for a blockchain wallet [duplicate]

I hired a broker to make forex and crypto profits for me. They did and put it in my broker account. the only method to get the profit out was to put it in a blockchain wallet. After they did this, ...
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2answers
124 views

Openssl magic values? Secp256k1 and ECDSA similarities? What makes secp256k1 special?

Part 1: Running this command seems to be a reliable way to produce a pubkey from a valid private key that for Bitcoin. Is this a correct assumption? openssl ec -inform DER -text -noout -in <(cat &...
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1answer
76 views

Can I know if a bitcoin private/public key or address was derived from another key in an HD wallet by its structure?

If I have a bitcoin private key, public key or address, can I know if it is a root private key or some other part which derived from a root private key in an HD wallet by the structure of it? To be ...
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0answers
49 views

how to get private key from passpharase in php?

i have a passpharase bitcoin, but i don't know how to get private key from my passpharase. I tried using blockchain and electrum and it worked. but here what I need is to find the private key using ...
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47 views

How to best practice restoring a wallet in bitcoin core

I have a test wallet in bitcoin core that I want to play around with and get comfortable with before I move my btc from blockstream green wallet. I primarily use that wallet because so far it has been ...
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2answers
212 views

convert private key to bitcoin address using python or php

I have private key like this 5JYJWrRd7sbqEzL9KR9dYTGrxyLqZEhPtnCtcvhC5t8ZvWgS9iC how to convert to bicoin address using python or php? example bitcoin address 18V7u8YNHKwG944TCkzYYj32hb6fdFPvQf
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1answer
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How can I calculate the possible number of correctly formatted version one minikeys?

I'm doing a small research project collecting information on minikeys. In that research process I've come across a couple of questions that I have been unable to answer in relation to the assumed ...
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1answer
53 views

Are HD wallets private keys any different than regular private keys

Aside from the fact that HD wallets derive them deterministically, is it correct to state that keys driven at any path or index under BIP32 isn't any different from a private key that's derived ...
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53 views

Do invalid keys in BIP44 path matter?

I understand not all private keys are usable as they fall outside of Secp256k1, but do they really matter when the master node or path being derived in BIP44 generates a private key which isn't usable ...
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1answer
56 views

What can I do with “unspent” transactions? Can I transmit them to a chain?

I withdrew some bitcoin from a service's account I maintain. The transaction shows up in my wallet, but it has been marked as "unspent" ever since. What does this mean?
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40 views

First crypto transaction

When making your first bitcoin transaction, at what time do you generate the public and private keys and how do you store your private key on a hardware wallet?
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85 views

Key Derivation - CKDprv & CKDpub

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

Get bitcoins to self created Bitcoin address

I created Bitcoin private and public key pair for Bitcoin. I am looking a way to receive funds to my Bitcoin address. The wallet apps which support buying or selling bitcoins are generating bitcoin ...
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1answer
60 views

Tips for child key derivation

I am trying to make the child key derivation using the extended keys of the BIP32 document (https://en.bitcoin.it/wiki/BIP_0032). Assuming that an extended key is only a base58 encoded serialization ...
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1answer
53 views

Remaining bitcoins sent to a different address

Let's say I have 20 bitcoins in address A. I sent 5 bitcoins from address A to address B. Why is that the remaining bitcoins got sent to address C that I never used or knew before. I still get ...
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2answers
68 views

How do I Transfer Bitcoins If I have a watch-only account with the Private Key

How do I transfer bitcoins over from a watch only electrum account if I have the private key and its address?
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1answer
52 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 ...

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