Unanswered Questions
142 questions with no upvoted or accepted answers
4
votes
1
answer
1k
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Generate addresses from Trezor's xPub using Python
I am trying to generate BIP32 HD addresses from my Trezors xPub key.
I keep getting errors with most of the libs our there. What am I missing?
pywallet:
from pywallet import wallet
xpub = '...
4
votes
0
answers
675
views
Bitcoinj: How to fix error "You should use Context.propagate() or a ContextPropagatingThreadFactory"
I'm using bitcoinj from a Scala application... and when I start it, I always get the following errors:
[error] o.b.c.Context - Performing thread fixup: you are accessing bitcoinj via a thread that ...
3
votes
0
answers
466
views
Electrum Seed Purpose for MultiSig Wallet
I'm curious as to what exactly is protected by the seed that Electrum generates for a multisig wallet. My knowledge of the protocol implementation is rather basic, so please correct me where I'm wrong ...
3
votes
0
answers
742
views
Can I quickly check the cofactor of secp256k1 is 1
I was wondering if there was a quick way to check that the group underlying the elliptic curve secp256k1 was indeed cyclic with the usual point G a generator. I am given the prime number underlying ...
3
votes
0
answers
158
views
Does a bitcoinj SPV node forward transactions for itself?
The bitcoinj library offers a rather convenient WalletAppKit class, which I'd like to accept payments from customers. In order to facilitate the payments I'd offer the customers to send the ...
3
votes
0
answers
257
views
Bitcoin-qt database for BitcoinJ downloadBlockChain()
I am using bitcoinJ to develop a bitcoin based payment module for my project. I have the complete block chain downloaded/in sync with the network on the bitcoin-qt client.
Is there a way I can use ...
3
votes
2
answers
815
views
How to sign a transaction using BitcoinJ
I am having problem signing the transaction using BitcoinJ library without the Wallet instance, I only have the Transaction class instance and the ECKey in order to sign the transaction.
Is there a ...
2
votes
0
answers
58
views
Using BIP32 derivations, can all seeds theoretically produce all public keys?
I was interested in how many possible combinations of BIP 32 derivation paths exist, which could result in a public key derived from a seed. While some people colloquially call it "unlimited,&...
2
votes
0
answers
82
views
How to claim funds in a multisig address from a money pool psbt?
Mostly followed this guide on how to create a psbt where multiple users pool money together. Everything is done in regtest.
The gist of what I did is as follows:
Created 2 different descriptor ...
2
votes
0
answers
358
views
Importing BIP-84 keys to Bitcoin Core or similar?
I generated a mnemonic and keys using the BIP-84 scheme and sent funds to a public address from that scheme over time. I have been using this as a paper wallet, unattached to any wallet software.
I ...
2
votes
0
answers
44
views
HD wallet usage in Bitcoin & Lightning combined wallets
Is there a best practice / recommendation for a Bitcoin & Lightning combined wallet, regarding the HD wallet used in the Bitcoin wallet and the HD wallet used in the Lightning wallet?
no relation,...
2
votes
0
answers
63
views
Is BitCoin developer page's HD Wallet image wrong
Here is the image I copied from the https://developer.bitcoin.org/devguide/wallets.html#id9
What I understand is that M/0'/1' can derive M/0'/1'/0.
M/0'/1' can't derive M/0'/1'/0'.
To derive M/0'/1'/0,...
2
votes
1
answer
250
views
Reusing bitcoin hw wallet infrastructure as a PGP replacement?
A lot of people who own Bitcoin are already know how to securely generate, store and use their BIP32 + BIP39 wallets, and own hardware wallets.
Are there any existing projects/standards trying to bolt ...
2
votes
0
answers
172
views
Is there a simpler form of BIP32-like key derivation?
I've read about BIP32 key derivation functions, and also:
Any Elliptic Curve could work in the BIP32 scheme. The only property
of a Curve that BIP32 relies on is that a * G + b *G = (a + b mod N) *
G,...
2
votes
0
answers
39
views
Ypub test vectors missing for mainnet
Following extended key derivation scheme in BIP49 is there a publicly available test vector repository for mainnet? The test vectors in https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki#...