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taproot address support implemented #144

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1 change: 1 addition & 0 deletions package.json
Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@
"bchaddrjs": "0.5.2",
"bignumber.js": "9.0.2",
"bip32": "3.0.1",
"bip86": "0.0.1",
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"bitcoinjs-lib": "6.0.1",
"bitcore-lib-cash": "8.25.28",
"bs58check": "2.1.2",
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26 changes: 25 additions & 1 deletion src/actions/deriveAddresses.ts
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ import bs58 from "bs58check";
import { publicKeyTweakAdd } from "secp256k1";

const bip32 = BIP32Factory(ecc);
const BIP86 = require('bip86');

class BIP32 {
publicKey: any;
Expand Down Expand Up @@ -134,6 +135,25 @@ function getNativeSegWitAddress(
return String(address);
}

/**
* derive a Taproot address at a given account and index positions
* @param xpub the xpub from which to derive the native SegWit address
* @param account account number from which to derive the native SegWit address
* @param index index number from which to derive the native SegWit address
* @returns the derived Taproot address
*/
function getTaprootAddress(
xpub: string,
account: number,
index: number,
): string {

var account1 = new BIP86.fromXPub(xpub);
var address = account1.getAddress(index,!!account);
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return String(address);
}

/**
* derive a Bitcoin Cash address at a given account and index positions
* @param xpub the xpub from which to derive the Bitcoin Cash address
Expand Down Expand Up @@ -201,6 +221,8 @@ function deriveAddress(
return getSegWitAddress(xpub, account, index);
case DerivationMode.NATIVE:
return getNativeSegWitAddress(xpub, account, index);
case DerivationMode.TAPROOT:
return getTaprootAddress(xpub,account,index);
case DerivationMode.BCH:
return getLegacyBitcoinCashAddress(xpub, account, index);
case DerivationMode.DOGECOIN:
Expand All @@ -221,8 +243,10 @@ function deriveAddress(
*/

function getDerivationMode(address: string) {
if (address.match("^(bc1|tb1|ltc1).*")) {
if (address.match("^(bc1q|tb1|ltc1).*")) {
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return DerivationMode.NATIVE;
} else if (address.match("^[bc1p].*")) {
return DerivationMode.TAPROOT;
} else if (address.match("^[32M].*")) {
return DerivationMode.SEGWIT;
} else if (address.match("^[1nmL].*")) {
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2 changes: 2 additions & 0 deletions src/configuration/currencies.ts
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ export enum DerivationMode {
LEGACY = "Legacy",
NATIVE = "Native SegWit",
SEGWIT = "SegWit",
TAPROOT = "Taproot",
BCH = "Bitcoin Cash",
ETHEREUM = "Ethereum",
DOGECOIN = "Dogecoin",
Expand All @@ -20,6 +21,7 @@ export const currencies = {
DerivationMode.LEGACY,
DerivationMode.SEGWIT,
DerivationMode.NATIVE,
DerivationMode.TAPROOT,
],
precision: 10 ** 8,
utxo_based: true,
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