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/** @format */ | ||
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function main() {} |
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/** @format */ | ||
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import Transport from '@ledgerhq/hw-transport-node-hid'; | ||
import { testnet } from 'bitcoinjs-lib/src/networks.js'; | ||
import { AppClient, DefaultWalletPolicy, WalletPolicy } from 'ledger-bitcoin'; | ||
import { BIP32Factory } from 'bip32'; | ||
import * as ecc from 'tiny-secp256k1'; | ||
import { initEccLib } from 'bitcoinjs-lib'; | ||
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type BitcoinNetworkName = 'Mainnet' | 'Testnet'; | ||
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const TEST_EXTENDED_PRIVATE_KEY = | ||
'tprv8ZgxMBicQKsPdUfw7LM946yzMWhPrDtmBpB3R5Czx3u98TB2bXgUnkGQbPrNaQ8VQsbjNYseSsggRETuFExqhHoAoqCbrcpVj8pWShR5eQy'; | ||
const TEST_EXTENDED_PUBLIC_KEY = | ||
'tpubD6NzVbkrYhZ4Wwhizz1jTWe6vYDL1Z5fm7mphbFJNKhXxwRoDvW4yEtGmWJ6n9JE86wpvQsDpzn5t49uenYStgAqwgmKNjDe1D71TdAjy8o'; | ||
const TEST_MASTER_FINGERPRINT = '8400dc04'; | ||
const TAPROOT_UNSPENDABLE_KEY_STRING = '50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0'; | ||
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initEccLib(ecc); | ||
const bip32 = BIP32Factory(ecc); | ||
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export async function main(transport: any) { | ||
const bitcoinNetworkName: BitcoinNetworkName = 'Testnet'; | ||
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// ==> Create a new instance of the AppClient | ||
const ledgerApp = new AppClient(transport); | ||
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// ==> Get Ledger Master Fingerprint | ||
const fpr = await ledgerApp.getMasterFingerprint(); | ||
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// ==> Register Taproot Multisig Wallet ########################################################## | ||
const derivationPath = "86'/1'/0'/0/0"; | ||
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// ==> Get Ledger Derived Public Key | ||
const ledgerExtendedPublicKey = await ledgerApp.getExtendedPubkey(`m/${derivationPath}`); | ||
const ledgerDerivedPublicKey = bip32 | ||
.fromBase58(ledgerExtendedPublicKey, testnet) | ||
.publicKey.subarray(1) | ||
.toString('hex'); | ||
console.log(`[Ledger][${bitcoinNetworkName}] Ledger Derived Public Key: ${ledgerDerivedPublicKey}`); | ||
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// ==> Get External Derived Public Key | ||
const externalDerivedPublicKey = bip32 | ||
.fromBase58(TEST_EXTENDED_PRIVATE_KEY, testnet) | ||
.derivePath(`m/${derivationPath}`) | ||
.neutered() | ||
.publicKey.toString('hex'); | ||
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console.log(`[Ledger][${bitcoinNetworkName}] External Derived Public Key: ${externalDerivedPublicKey}`); | ||
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// ==> Create Key Info | ||
const ledgerKeyInfo = `[${fpr}/${derivationPath}]${ledgerExtendedPublicKey}`; | ||
const externalKeyInfo = `[${TEST_MASTER_FINGERPRINT}/${derivationPath}]${externalDerivedPublicKey}`; | ||
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// ==> Create Multisig Wallet Policy | ||
// I tried with both the keyInfo as you suggested in the example, and with the actual key, but it didn't work. | ||
const multisigPolicy = new WalletPolicy('Multisig Taproot Wallet', `tr(@0,and_v(v:pk(@1),pk(@2)))`, [ | ||
TAPROOT_UNSPENDABLE_KEY_STRING, | ||
externalDerivedPublicKey, | ||
ledgerDerivedPublicKey, | ||
]); | ||
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// ==> Register Wallet | ||
const [policyId, policyHmac] = await ledgerApp.registerWallet(multisigPolicy); | ||
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console.log(`Policy hmac: ${policyHmac.toString('hex')}. Store it safely (together with the policy).`); | ||
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console.assert(policyId.compare(multisigPolicy.getId()) == 0); // | ||
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const multisigAddress = await ledgerApp.getWalletAddress(multisigPolicy, policyHmac, 0, 0, true); | ||
console.log(`Taproot Multisig Wallet Address: ${multisigAddress}`); | ||
} | ||
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export async function testLedger() { | ||
Transport.default | ||
.create() | ||
.then((transport) => main(transport)) | ||
.catch(console.error); | ||
} |
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