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83 lines
2.5 KiB
83 lines
2.5 KiB
import { AbstractHDWallet } from './abstract-hd-wallet';
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const bitcoin = require('bitcoinjs-lib');
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const bip39 = require('bip39');
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/**
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* HD Wallet (BIP39).
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* In particular, Breadwallet-compatible (Legacy addresses)
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*/
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export class HDLegacyBreadwalletWallet extends AbstractHDWallet {
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constructor() {
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super();
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this.type = 'HDLegacyBreadwallet';
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}
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getTypeReadable() {
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return 'HD Legacy Breadwallet (P2PKH)';
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}
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/**
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* @see https://github.com/bitcoinjs/bitcoinjs-lib/issues/584
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* @see https://github.com/bitcoinjs/bitcoinjs-lib/issues/914
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* @see https://github.com/bitcoinjs/bitcoinjs-lib/issues/997
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*/
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getXpub() {
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if (this._xpub) {
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return this._xpub; // cache hit
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}
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let mnemonic = this.secret;
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let seed = bip39.mnemonicToSeed(mnemonic);
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let root = bitcoin.HDNode.fromSeedBuffer(seed);
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let path = "m/0'";
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let child = root.derivePath(path).neutered();
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this._xpub = child.toBase58();
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return this._xpub;
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}
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_getExternalAddressByIndex(index) {
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index = index * 1; // cast to int
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if (this.external_addresses_cache[index]) return this.external_addresses_cache[index]; // cache hit
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let mnemonic = this.secret;
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let seed = bip39.mnemonicToSeed(mnemonic);
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let root = bitcoin.HDNode.fromSeedBuffer(seed);
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let path = "m/0'/0/" + index;
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let child = root.derivePath(path);
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return (this.external_addresses_cache[index] = child.getAddress());
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}
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_getInternalAddressByIndex(index) {
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index = index * 1; // cast to int
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if (this.internal_addresses_cache[index]) return this.internal_addresses_cache[index]; // cache hit
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let mnemonic = this.secret;
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let seed = bip39.mnemonicToSeed(mnemonic);
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let root = bitcoin.HDNode.fromSeedBuffer(seed);
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let path = "m/0'/1/" + index;
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let child = root.derivePath(path);
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return (this.internal_addresses_cache[index] = child.getAddress());
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}
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_getExternalWIFByIndex(index) {
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index = index * 1; // cast to int
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let mnemonic = this.secret;
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let seed = bip39.mnemonicToSeed(mnemonic);
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let root = bitcoin.HDNode.fromSeedBuffer(seed);
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let path = "m/0'/0/" + index;
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let child = root.derivePath(path);
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return child.keyPair.toWIF();
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}
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_getInternalWIFByIndex(index) {
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index = index * 1; // cast to int
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let mnemonic = this.secret;
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let seed = bip39.mnemonicToSeed(mnemonic);
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let root = bitcoin.HDNode.fromSeedBuffer(seed);
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let path = "m/0'/1/" + index;
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let child = root.derivePath(path);
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return child.keyPair.toWIF();
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}
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}
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