@hdwallet/core
Version:
A complete Hierarchical Deterministic (HD) Wallet generator for 200+ cryptocurrencies, built with TypeScript.
65 lines • 3.29 kB
JavaScript
// SPDX-License-Identifier: MIT
import { BIP84Derivation, CHANGES } from '../derivations';
import { Bitcoin } from '../cryptocurrencies';
import { P2WPKHAddress } from '../addresses';
import { BIP44HD } from './bip44';
import { PUBLIC_KEY_TYPES } from '../consts';
import { serialize } from '../keys';
import { integerToBytes, ensureTypeMatch } from '../utils';
import { DerivationError } from '../exceptions';
export class BIP84HD extends BIP44HD {
constructor(options = {
publicKeyType: PUBLIC_KEY_TYPES.COMPRESSED
}) {
super(options);
this.coinType = options.coinType ?? Bitcoin.COIN_TYPE;
this.derivation = new BIP84Derivation({
coinType: this.coinType,
account: options.account ?? 0,
change: options.change ?? CHANGES.EXTERNAL_CHAIN,
address: options.address ?? 0
});
}
static getName() {
return 'BIP84';
}
fromDerivation(derivation) {
this.cleanDerivation();
this.derivation = ensureTypeMatch(derivation, BIP84Derivation, { errorClass: DerivationError });
for (const index of this.derivation.getIndexes()) {
this.drive(index);
}
return this;
}
getRootXPrivateKey(version = Bitcoin.NETWORKS.MAINNET.XPRIVATE_KEY_VERSIONS.P2WPKH, encoded = true) {
if (!this.getRootPrivateKey() || !this.getRootChainCode())
return null;
return serialize(typeof version === 'number' ? integerToBytes(version) : version, this.rootDepth, new Uint8Array(4), this.rootIndex, this.getRootChainCode(), '00' + this.getRootPrivateKey(), encoded);
}
getRootXPublicKey(version = Bitcoin.NETWORKS.MAINNET.XPUBLIC_KEY_VERSIONS.P2WPKH, encoded = true) {
if (!this.getRootChainCode())
return null;
return serialize(typeof version === 'number' ? integerToBytes(version) : version, this.rootDepth, new Uint8Array(4), this.rootIndex, this.getRootChainCode(), this.getRootPublicKey(PUBLIC_KEY_TYPES.COMPRESSED), encoded);
}
getXPrivateKey(version = Bitcoin.NETWORKS.MAINNET.XPRIVATE_KEY_VERSIONS.P2WPKH, encoded = true) {
if (!this.getPrivateKey() || !this.getChainCode())
return null;
return serialize(typeof version === 'number' ? integerToBytes(version) : version, this.depth, this.getParentFingerprint(), this.index, this.getChainCode(), '00' + this.getPrivateKey(), encoded);
}
getXPublicKey(version = Bitcoin.NETWORKS.MAINNET.XPUBLIC_KEY_VERSIONS.P2WPKH, encoded = true) {
if (!this.getChainCode())
return null;
return serialize(typeof version === 'number' ? integerToBytes(version) : version, this.depth, this.getParentFingerprint(), this.index, this.getChainCode(), this.getPublicKey(PUBLIC_KEY_TYPES.COMPRESSED), encoded);
}
getAddress(options = {
hrp: Bitcoin.NETWORKS.MAINNET.HRP,
witnessVersion: Bitcoin.NETWORKS.MAINNET.WITNESS_VERSIONS.P2WPKH
}) {
return P2WPKHAddress.encode(this.publicKey, {
hrp: options.hrp ?? Bitcoin.NETWORKS.MAINNET.HRP,
witnessVersion: options.witnessVersion ?? Bitcoin.NETWORKS.MAINNET.WITNESS_VERSIONS.P2WPKH,
publicKeyType: this.publicKeyType
});
}
}
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