mirror of
https://github.com/cypherstack/stack_wallet.git
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40 lines
1.5 KiB
Dart
40 lines
1.5 KiB
Dart
import 'dart:typed_data';
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import 'package:bip47/bip47.dart';
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import 'package:bitcoindart/bitcoindart.dart';
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import 'package:pointycastle/digests/sha256.dart';
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import 'package:stackwallet/hive/db.dart';
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import 'package:stackwallet/services/coins/dogecoin/dogecoin_wallet.dart';
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extension PayNym on DogecoinWallet {
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// fetch or generate this wallet's bip47 payment code
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Future<PaymentCode> getPaymentCode() async {
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final paymentCodeString = DB.instance
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.get<dynamic>(boxName: walletId, key: "paymentCodeString") as String?;
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PaymentCode paymentCode;
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if (paymentCodeString == null) {
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final node = getBip32Root((await mnemonic).join(" "), network)
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.derivePath("m/47'/0'/0'");
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paymentCode =
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PaymentCode.initFromPubKey(node.publicKey, node.chainCode, network);
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await DB.instance.put<dynamic>(
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boxName: walletId,
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key: "paymentCodeString",
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value: paymentCode.toString());
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} else {
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paymentCode = PaymentCode.fromPaymentCode(paymentCodeString, network);
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}
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return paymentCode;
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}
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Future<Uint8List> signWithNotificationKey(Uint8List data) async {
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final node = getBip32Root((await mnemonic).join(" "), network)
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.derivePath("m/47'/0'/0'");
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final pair = ECPair.fromPrivateKey(node.privateKey!, network: network);
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final signed = pair.sign(SHA256Digest().process(data));
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return signed;
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}
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// Future<Map<String, dynamic>> prepareNotificationTransaction(
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// String targetPaymentCode) async {}
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}
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