Questions tagged [address-generation]
Collects technical details on the process of creating new addresses.
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Public key vs Bitcoin address [duplicate]
As i've read on many websites and papers, the bitcoin address is made by hashing the public key. And i've read that that's done because we don't want the public key to be public until money is spent.
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1answer
41 views
Can someone explain what exactly is derived address?
Let's say my mnemonic words are
army van defense carry jealous true garbage claim echo media make
crunch
When I used https://iancoleman.io/bip39/#english, the section, Derived Address, showed ...
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1answer
56 views
Generating a BCH address offline
To generate offline BTC addresses, I use the bitcoin-core app from bitcoincore.org. What is the BCH equivalent of this?
Is it the bitcoin-unlimited app?
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1answer
27 views
Are addresses which start with 3 multisig addresses?
I've just downloaded bitcoin-core 0.17.1 and it seems all the new receiving addresses I create start with 3 instead of 1.
I always thought addresses which start with 3 were multisig addresses. ...
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1answer
37 views
How to encode a string into a bitcoin address? (Not a brain-wallet, an address, like a vanity-address)
I would like to know if a bitcoin burn address can be tied to a string. This question is not about OP_RETURN or other ways of embedding into a blockchain.
Here's the processes that I went through:
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3answers
59 views
Repeated sha256 on brain wallet [closed]
The writer of this article https://pastebin.com/raw/jCDFcESz explains that
Sha256('sender') x 2 yields the address 18aMGf2AxQ3YXyNv9sKxiHYCXcBJeJv9d1
I am however getting the address ...
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2answers
40 views
Why is there a finite amount of bitcoin addresses and how is the range of possible addresses determined
My first question is what the precise logical/theoretical reason is that there are only a fixed amount of possible bitcoin addresses. Secondly, I can generate a bitcoin address by using address(sha256(...
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1answer
40 views
“bitaddress.org”: It generates a BTC or BCH address?
(1) Is the address generated by www.bitaddress.org a BTC address? Or BCH address (Bitcoin Cash) ?
(2) Is there a general method to recognize BTC address from BCH address?
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0answers
24 views
Bitcoin.com Wallet: How to export separately addresses and private key from json file?
I created a wallet by Bitcoin.com Wallet application for Windows. And then I generated 3 BTC addresses for this wallet.
I then exported this wallet using Export Wallet and and chose File/Text option, ...
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1answer
30 views
Why the normal mode exist in BIP32
Suppose the BIP32 normal deviation is not safe enough.
Suppose the xpub is deployed on the server, we assume it is public, then the leak of any derived private key is the leak of the parent private ...
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1answer
59 views
The risk of sending money to a xpub generated address
Suppose the owner of xpub share the xpub to others, and someone send some money to a xpub generated address.
If the owner of xprv does not know the path used to generate that new address, is that ...
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2answers
73 views
Bitcoin HD Wallets with hardened derivation and watch-only addresses
I'm learning about the details of how HD wallets work. After reading the BIP32 and BIP44 documents thoroughly and supplementing it with Mastering Bitcoin there's still on aspect that I can't figure ...
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2answers
2k views
Is a bitcoin address collision possible if generating 90 million addresses every 4 hours?
I am running a test to see if I can obtain a successful bitcoin address collision after generating billions of addresses. I am not entirely sure how I would check them yet. Basically I have an extra ...
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1answer
38 views
Does Bitcoin Core accepts uncompressed address generation?
So one priv key express uncompressed and compressed pub key.
Does the latest Bitcoin Core client accepts importing it to express uncompressed address? or it automatically express compressed address?
...
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1answer
59 views
How many rounds of HMAC-SHA256 needed to generate the master key in BIP32
In the BIP32, it does not define the round of HMAC-SHA256.
In http://bip32.org/, it use 50,000 rounds.
In "mastering Bitcoin", it use 2048 rounds.
Is there any explicit standard, or what we ...
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2answers
212 views
How to get the derived public key from xpub?
Here I'd like to generate the other address use xpub.
Is there any library (python) could help to derive the new address from extended key?
such as:
gen_new_pub(xpub, new_path) to get the derived ...
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1answer
36 views
How to generate a large number of accounts via hw wallet and save addresses to file?
I work in a company which uses a ledger blue hw wallet. They need to generate bitcoin and eth accounts to send to users to deposit to. Currently they have people generating one account at a time in ...
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1answer
273 views
Using Python: create a private key of my choosing, then generate public key and address
I'm looking for a simple, easy to use Bitcoin library for Python.
What I want to do is verify I can enter a hex private key that I want, and get the expected pubkey in compressed format, and the 1Btc....
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2answers
36 views
What is the difference between your address and your public keys
I'm beginning to learn about cryptocurrencies, and I'm having a lot of trouble because some terms are used in different contexts. I know that public keys are generated through a private key. So, are ...
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1answer
9 views
Is it required to broadcast the addresses generated locally to the bitcoin network?
Like the transactions are broadcasted to the bitcoin network , is it required that locally generated addresses also need to be boradcasted to the bitcoin network ?
3
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1answer
102 views
Where are new addresses stored?
When a user generates an address using Bitcoin Core, is that address by default stored on the blockchain or will it only be stored after it is used in a transactions
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1answer
47 views
Adding an external key pair to a local bitcoinj wallet
I need to add a vanity address to a local wallet that I maintain using bitcoinj APIs. I'm not able to search for the vanity using bitcoinj APIs directly, on my local PC, because my vanity is too fancy....
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1answer
148 views
Generating private key/bitcoin address based on a “password”
Since the private key is basically a random large number, would I be able to pick a password and have that converted into an address?
For example: pick "mysecretpwd". Have it sha256ed, obtain a large ...
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1answer
35 views
Why bitcoin addresses have different number of characters?
With the help of bitcoin wiki I learned that every bitcoin address stands for a number and that shorter addresses are valid just because they happen to start with zeros, and when the zeroes are ...
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1answer
248 views
Possible attack vector of BIP32 HD wallet
I've been reading about BIP32 HD wallet and it's implementation and came across a few questions regarding the possible known "attack" vector of leaked private child keys and known xpub parent key ...
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1answer
34 views
Bitcoin explorers don't show my addresses transactions
I'm creating bitcoin addresses for a wallet we're building. To make sure the addresses are valid I went to a couple of bitcoin explorers and they reported, correctly, that the address does not have ...
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1answer
50 views
Is there any way to revoke or update private key?
Suppose my private key corresponding to an address is stolen.
Is there any way to revoke private key or update the private key?
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1answer
69 views
Print all states of getting from a random 256 bit private key to a corresponding encoded BTC address
I wonder if it is possible to print what's going on under the hood regarding the process of getting from a random binary number to a BTC address.
It will look something like this:
Input: a random ...
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1answer
82 views
Whether I have to scan all types of addresses to discover BIP44 wallet from mnemonic?
Let's assume that I am going to create a new address in bitcoin HD wallet knowing only mnemonic words and that previously addresses were generated according to BIP44.
BIP44 gives an algorithm how to ...
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2answers
93 views
Can one recover the full list of public keys generated in electrum with the seed/private key?
I used the wallet.change_gap_limit command in the electrum console in order to generate some 20.000 public keys.
Would I be able to recover all of these using my seed after completely removing ...
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1answer
144 views
OpenSSL bitcoin addresses generation
Using OpenSSL ver 1.1.0h on win 8.1 - 32 bit
Im trying to recreate this post using cmd: OpenSSL generate Bitcoin address
But on step 3:
openssl ec -in c:\keys\private.pem -outform DER|tail -c +8|...
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1answer
306 views
bitcoin address from xpub key
I want to create bitcoin address from extended public key, without exposing private key but did not get any success till now. Do someone know how to do it? I am using bitcore-lib package
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2answers
323 views
How to generate a dash address?
How can I generate a simple dash address from a public key?
How many address formats are there in dash?
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1answer
255 views
BIP 32 child key derivation “stops working” after a certain index (i)
Here's my code to get a child public key from a parent HD key. I adapted it from freedomnode:
public function address_from_master_pub($path = '0/0') {
if ($this->xpub === NULL && $...
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1answer
276 views
Number of Trials Required For Brute Force Attack To Have x% Of Success?
I'm making an informational video about how unlikely it is for an attacker to successfully brute force a specific bitcoin address. Obviously, it will deal with impossibly huge numbers ("not in earth's ...
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1answer
62 views
Checking the first and last characters of a cryptocurrency address?
When confirming that an address entered on a site/app is what I expect it to be, I often check the first and last 3-4 characters to see if they match.
Is this practice dangerous? Could an attacker ...
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0answers
48 views
What's the difference between all kinds of bitcoin addresses (Single, multisig, etc…) also compared to all bitcoin forks?
Bitcoin addresses start with 1. Multisig/Script addresses start with 3. Other forks of bitcoin have single letters that are different at the beginning. Is this letter simply and only prepended to the ...
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1answer
119 views
Hypothetical Scenario - Address collision with address with already confirmed outgoing transaction
In a typical case of finding a collision with an address, as long as the private key provided has a consistent public key that hashes to the address, then the coins in that address can be spent. The ...
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2answers
63 views
How to generate an address for bitcoin?
I installed bitcoin core and I am generating an address using getnewaddress. To get the private_key of the address I am using dumpprivkey. To get the unspents I am using listunspent. Till here ...
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1answer
71 views
Can I generate an address without using bitcoin core?
I am running bitcoin core in my mode. I am using getnewaddress to generate an address and then I am using unspent to get the unspent of an address which returns the unspent successfully. If I created ...
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1answer
140 views
How are 21 words seeds generated
Apologies for the noobie question.
I was wondering how a range of wallet addresses (eg. BTC address 33ELbMhwHw5AaKHU4u3MzVSFvvK7aa7HZL) is algorithmically converted into seeds (eg. 12 words). Any help?...
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1answer
250 views
Generate QR code for multiple cryptocurrency addresses
I want to generate my own QR code with my main cryptocurrency addresses without using an online solution, is there maybe a command prompt way or particular piece of software I cam download for this, ...
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1answer
661 views
How to generate a native Segwit address and P2SH Segwit address from a standard WIF?
Can I have the steps to generate a native Segwit address from a standard WIF? And the steps to generate a P2SH Segwit address from the same WIF?
How do these two formats differ and why are there two?...
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1answer
305 views
Benefits of generate address from sha256 hash than random address
Is there any benefits (eg: better security) of generate a address from SHA 256 hash vs generate a random hash?
Generate adress from a SHA 256 hash
var value = Buffer.from('correct horse battery ...
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1answer
1k views
python-bitcoinlib | Create Private Keys, Public Keys and Addresses - How to Do It?
I'm trying to use the python-bitcoinlib library but its docs aren't entirely clear to me.
I'm a programmer but quite new to Python, and not very versed in the Bitcoin protocol.
What's the process, ...
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1answer
696 views
How to generate a Litecoin testnet addresses (Segwit also) (Derivation path, bip32)
I'm creating a wallet that generates address for litecoin mainnet in two ways.
One is using bitcoinjs-lib. This library has an object with all the data need it to create private keys and address:
...
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1answer
896 views
How can I generate bitcoin cash addresses programmatically? [duplicate]
If I'm a mobile developer who wants to integrate bitcoin cash in an app, how can I generate Bitcoin Cash addresses programmatically, without relying on a 3rd party service, like Coinbase?
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3answers
874 views
ELI5: What is Base58Check encoding?
I've seen posts on how to do it and I've read the wiki on what it is, however these explanations are too complex. Can someone explain what it is and why it's called Base58Check encoding? Are addresses ...
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0answers
142 views
bitcoinjs-lib seems to skip a step in deriving addresses from a BIP 44 wallet
According to this wiki page to create a bitcoin address,
1) you have your public key of the properly derived path
2) Then SHA256 it
3) Then RIPEMD-160 it,
Add version byte at the front and boom ...
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0answers
894 views
How login in Bitcoin wallet using private key
We're working with a ICO project based on NEO Blockchain. We've requirement of getting payments through NEO, ETH and BTC. We're using deposit address concept to get payments from the users, and for ...
