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fix litecoin

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This commit is contained in:
Matthew Fosse 2024-04-18 08:37:13 -07:00
parent 428b7ccdf0
commit b08bac577d
1 changed files with 14 additions and 2 deletions
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16
cw_bitcoin/lib/litecoin_wallet.dart
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@ -1,6 +1,7 @@
import 'dart:convert';
import 'package:bitcoin_base/bitcoin_base.dart';
import 'package:blockchain_utils/blockchain_utils.dart';
import 'package:blockchain_utils/crypto/crypto/cdsa/curve/curves.dart';
import 'package:blockchain_utils/crypto/crypto/cdsa/ecdsa/signature.dart';
import 'package:blockchain_utils/crypto/quick_crypto.dart';
@ -139,6 +140,18 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
return priv.signMessage(utf8.encode(message), messagePrefix: messagePrefix);
}
List<int> _magicPrefix(List<int> message, List<int> messagePrefix) {
final encodeLength = IntUtils.encodeVarint(message.length);
return [...messagePrefix, ...encodeLength, ...message];
}
List<int> magicMessage(List<int> message, String messagePrefix) {
final prefixBytes = StringUtils.encode(messagePrefix);
final magic = _magicPrefix(message, prefixBytes);
return QuickCrypto.sha256Hash(magic);
}
@override
Future<bool> verifyMessage(String message, String signature, {String? address = null}) async {
if (address == null) {
@ -153,8 +166,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
}
String messagePrefix = '\x19Litecoin Signed Message:\n';
final messageHash = QuickCrypto.sha256Hash(
BitcoinSignerUtils.magicMessage(utf8.encode(message), messagePrefix));
final messageHash = QuickCrypto.sha256Hash(magicMessage(utf8.encode(message), messagePrefix));
List<int> correctSignature =
sigDecodedBytes.length == 65 ? sigDecodedBytes.sublist(1) : List.from(sigDecodedBytes);