Using EcKeyPair

Overview

EcKeyPair handles key generation, derivation, address generation, Taproot tweaking, multi-signature address creation, and address verification. It uses the secp256k1 curve with precomputed tables for optimized performance.

Refers to the EcKeyPair Reference section for technical information about the EcKeyPair class.

Code Examples

Import from WIF and generate a complete wallet

typescript

Import from WIF and generate a complete wallet

import { EcKeyPair } from '@btc-vision/transaction';
import { networks } from '@btc-vision/bitcoin';

const signer = EcKeyPair.fromWIF('L4rK1yDt...', networks.bitcoin);
const wallet = EcKeyPair.generateWallet(networks.bitcoin);

console.log('Classical address:', wallet.address);
console.log('Quantum public key:', wallet.quantumPublicKey);

Create a 2-of-3 multisig

typescript

Create a 2-of-3 multisig

import { EcKeyPair } from '@btc-vision/transaction';
import { networks } from '@btc-vision/bitcoin';

const addr = EcKeyPair.generateMultiSigAddress(
    [pubkey1, pubkey2, pubkey3],
    2,
    networks.bitcoin,
);
console.log('Multisig address:', addr); // bc1q... (P2WSH)

Full workflow

typescript

Generate key pair, derive addresses

import { EcKeyPair } from '@btc-vision/transaction';
import { networks } from '@btc-vision/bitcoin';

const network = networks.bitcoin;

// Generate a random key pair
const signer = EcKeyPair.generateRandomKeyPair(network);

// Derive all address types
const taproot = EcKeyPair.getTaprootAddress(signer, network);
const segwit  = EcKeyPair.getP2WPKHAddress(signer, network);
const legacy  = EcKeyPair.getLegacyAddress(signer, network);
const nested  = EcKeyPair.getLegacySegwitAddress(signer, network);

console.log('Taproot:', taproot);  // bc1p...
console.log('SegWit:', segwit);    // bc1q...
console.log('Legacy:', legacy);    // 1...
console.log('Nested:', nested);    // 3...