wip: working taproot multisig policy

DLC-link · May 6, 2024 · 745e726 · 745e726
1 parent 57be0bf
commit 745e726
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Showing 3 changed files with 57 additions and 45 deletions.
diff --git a/src/index.ts b/src/index.ts
@@ -29,7 +29,7 @@ import { BitGoAddress } from './models.js';
 import { getNativeSegwitPublicKeys, getTaprootMultisigScript, getTaprootPublicKeys } from './payment-functions.js';
 import { bitcoinToSats } from './utilities.js';
 import { testLedger } from './ledger_test.js';
-import { getScripts } from './ledger.js';
+import { createScripts, getScripts } from './ledger.js';
 
 dotenv.config();
 

diff --git a/src/ledger.ts b/src/ledger.ts
@@ -29,42 +29,43 @@ const TEST_MASTER_FINGERPRINT = 'd34db33f';
 
 // const TAPROOT_UNSPENDABLE_KEY_STRING = '50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0';
 
-// export function createScripts(): {
-//   nativeSegwitPublicKey: Buffer;
-//   nativeSegwitScript: Payment;
-//   taprootPublicKey: Buffer;
-//   taprootScript: Payment;
-// } {
-//   const bitcoinNetwork = testnet;
-
-//   const seedBytes = randomBytes(32);
-//   console.log('Seed Bytes:', bytesToHex(seedBytes));
+export function createScripts(): {
+  nativeSegwitPublicKey: Buffer;
+  nativeSegwitScript: Payment;
+  taprootPublicKey: Buffer;
+  taprootScript: Payment;
+} {
+  const bitcoinNetwork = testnet;
 
-//   const node = bip32.fromSeed(Buffer.from(seedBytes), bitcoinNetwork);
+  const seedBytes = randomBytes(32);
+  console.log('Seed Bytes:', bytesToHex(seedBytes));
 
-//   const extendedPrivateKey = node.toBase58();
-//   console.log('Extended private key:', extendedPrivateKey);
+  const node = bip32.fromSeed(Buffer.from(seedBytes), bitcoinNetwork);
+  const masterFingerPrint = node.fingerprint.toString('hex');
+  console.log('Master Fingerprint', masterFingerPrint);
+  const extendedPrivateKey = node.toBase58();
+  console.log('Extended private key:', extendedPrivateKey);
 
-//   const extendedPublicKey = node.neutered().toBase58();
-//   console.log('Extended public key:', extendedPublicKey);
+  const extendedPublicKey = node.neutered().toBase58();
+  console.log('Extended public key:', extendedPublicKey);
 
-//   const nativeSegwitPublicKey = node.derivePath("m/48'/1'/0'/2'").publicKey;
-//   console.log('derivation path:', "m/48'/1'/0'/2'");
-//   console.log('Native Segwit Public key:', bytesToHex(nativeSegwitPublicKey));
+  const nativeSegwitPublicKey = node.derivePath("m/48'/1'/0'/2'").publicKey;
+  console.log('derivation path:', "m/48'/1'/0'/2'");
+  console.log('Native Segwit Public key:', bytesToHex(nativeSegwitPublicKey));
 
-//   const nativeSegwitScript = p2wpkh({ pubkey: nativeSegwitPublicKey, network: bitcoinNetwork });
-//   console.log('Native Segwit Script:', nativeSegwitScript.address);
+  const nativeSegwitScript = p2wpkh({ pubkey: nativeSegwitPublicKey, network: bitcoinNetwork });
+  console.log('Native Segwit Script:', nativeSegwitScript.address);
 
-//   const taprootPublicKey = node.derivePath("m/48'/1'/0'/2").publicKey;
-//   const childNode = node.derivePath("48'/1'/0'/2");
-//   console.log('derivation path:', "m/48'/1'/0'/2");
-//   console.log('Taproot Public key:', bytesToHex(taprootPublicKey));
+  const taprootPublicKey = node.derivePath("m/48'/1'/0'/2").publicKey;
+  const childNode = node.derivePath("48'/1'/0'/2");
+  console.log('derivation path:', "m/48'/1'/0'/2");
+  console.log('Taproot Public key:', bytesToHex(taprootPublicKey));
 
-//   const taprootScript = p2tr({ pubkey: taprootPublicKey.subarray(1), network: bitcoinNetwork });
-//   console.log('Taproot Script:', taprootScript.address);
+  const taprootScript = p2tr({ pubkey: taprootPublicKey.subarray(1), network: bitcoinNetwork });
+  console.log('Taproot Script:', taprootScript.address);
 
-//   return { nativeSegwitPublicKey, nativeSegwitScript, taprootPublicKey, taprootScript };
-// }
+  return { nativeSegwitPublicKey, nativeSegwitScript, taprootPublicKey, taprootScript };
+}
 
 export function getScripts(): {
   masterFingerPrint: string;

diff --git a/src/ledger_test.ts b/src/ledger_test.ts
@@ -16,6 +16,12 @@ const TEST_EXTENDED_PUBLIC_KEY =
 const TEST_MASTER_FINGERPRINT = '8400dc04';
 const TAPROOT_UNSPENDABLE_KEY_STRING = '50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0';
 
+const TEST_EXTENDED_PRIVATE_KEY_2 =
+  'tprv8ZgxMBicQKsPfJ6T1H5ErNLa1fZyj2fxCR7vRqVokCLvWg9JypYJoGVdvU6UNkj59o6qDdB97QFk7CQa2XnKZGSzQGhfoc4hCGXrviFuxwP';
+const TEST_EXTENDED_PUBLIC_KEY_2 =
+  'tpubD6NzVbkrYhZ4Ym8EtvjqFmzgah5utMrrmiihiMY7AU9KMAQ5cDMtym7W6ccSUinTVbDqK1Vno96HNhaqhS1DuVCrjHoFG9bFa3DKUUMErCv';
+const TEST_MASTER_FINGERPRINT_2 = 'b2cd3e18';
+
 initEccLib(ecc);
 const bip32 = BIP32Factory(ecc);
 
@@ -29,35 +35,40 @@ export async function main(transport: any) {
   const fpr = await ledgerApp.getMasterFingerprint();
 
   // ==> Register Taproot Multisig Wallet ##########################################################
-  const derivationPath = "86'/1'/0'/0/0";
+  const derivationPath = "86'/1'/0'";
 
   // ==> 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: ${ledgerDerivedPublicKey}`);
-
-  // ==> Get External Derived Public Key
-  const externalDerivedPublicKey = bip32
+
+  console.log(`[Ledger][${bitcoinNetworkName}] Ledger Extended Public Key: ${ledgerExtendedPublicKey}`);
+
+  // ==> Get External Derived Public Keys
+  const externalExtendedPublicKey1 = bip32
     .fromBase58(TEST_EXTENDED_PRIVATE_KEY, testnet)
     .derivePath(`m/${derivationPath}`)
     .neutered()
-    .publicKey.toString('hex');
+    .toBase58();
+
+  const externalExtendedPublicKey2 = bip32
+    .fromBase58(TEST_EXTENDED_PRIVATE_KEY_2, testnet)
+    .derivePath(`m/${derivationPath}`)
+    .neutered()
+    .toBase58();
 
-  console.log(`[Ledger][${bitcoinNetworkName}] External Derived Public Key: ${externalDerivedPublicKey}`);
+  console.log(`[Ledger][${bitcoinNetworkName}] External Extended Public Key: ${externalExtendedPublicKey1}`);
+  console.log(`[Ledger][${bitcoinNetworkName}] External Extended Public Key: ${externalExtendedPublicKey2}`);
 
   // ==> Create Key Info
   const ledgerKeyInfo = `[${fpr}/${derivationPath}]${ledgerExtendedPublicKey}`;
-  const externalKeyInfo = `[${TEST_MASTER_FINGERPRINT}/${derivationPath}]${externalDerivedPublicKey}`;
+  const externalKeyInfo1 = `[${TEST_MASTER_FINGERPRINT}/${derivationPath}]${externalExtendedPublicKey1}`;
+  const externalKeyInfo2 = `[${TEST_MASTER_FINGERPRINT_2}/${derivationPath}]${externalExtendedPublicKey2}`;
 
   // ==> 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,
+  const multisigPolicy = new WalletPolicy('Multisig Taproot Wallet', `tr(@0/**,and_v(v:pk(@1/**),pk(@2/**)))`, [
+    externalKeyInfo1,
+    externalKeyInfo2,
+    ledgerKeyInfo,
   ]);
 
   // ==> Register Wallet