Cw 565 sign messages

cw_bitcoin/lib/electrum_wallet.dart

@@ -42,6 +42,7 @@ import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
 import 'package:rxdart/subjects.dart';
+import 'package:http/http.dart' as http;
 import 'package:sp_scanner/sp_scanner.dart';
 
 part 'electrum_wallet.g.dart';
@@ -132,6 +133,7 @@ abstract class ElectrumWalletBase
   final String? _mnemonic;
 
   Bip32Slip10Secp256k1 get hd => accountHD.childKey(Bip32KeyIndex(0));
+  Bip32Slip10Secp256k1 get sideHd => accountHD.childKey(Bip32KeyIndex(1));
 
   final EncryptionFileUtils encryptionFileUtils;
   final String? passphrase;
@@ -591,7 +593,7 @@ abstract class ElectrumWalletBase
       }
 
       final derivationPath =
-          "${_hardenedDerivationPath(walletInfo.derivationInfo?.derivationPath ?? "m/0'")}"
+          "${_hardenedDerivationPath(walletInfo.derivationInfo?.derivationPath ?? electrum_path)}"
           "/${utx.bitcoinAddressRecord.isHidden ? "1" : "0"}"
           "/${utx.bitcoinAddressRecord.index}";
       publicKeys[address.pubKeyHash()] = PublicKeyWithDerivationPath(pubKeyHex, derivationPath);
@@ -1851,11 +1853,70 @@ abstract class ElectrumWalletBase
         ? walletAddresses.allAddresses.firstWhere((element) => element.address == address).index
         : null;
     final HD = index == null ? hd : hd.childKey(Bip32KeyIndex(index));
-    final priv = ECPrivate.fromWif(
-      WifEncoder.encode(HD.privateKey.raw, netVer: network.wifNetVer),
-      netVersion: network.wifNetVer,
-    );
-    return priv.signMessage(StringUtils.encode(message));
+    final priv = ECPrivate.fromHex(HD.privateKey.privKey.toHex());
+
+    String messagePrefix = '\x18Bitcoin Signed Message:\n';
+    final hexEncoded = priv.signMessage(utf8.encode(message), messagePrefix: messagePrefix);
+    final decodedSig = hex.decode(hexEncoded);
+    return base64Encode(decodedSig);
+  }
+
+  @override
+  Future<bool> verifyMessage(String message, String signature, {String? address = null}) async {
+    if (address == null) {
+      return false;
+    }
+
+    List<int> sigDecodedBytes = [];
+
+    if (signature.endsWith('=')) {
+      sigDecodedBytes = base64.decode(signature);
+    } else {
+      sigDecodedBytes = hex.decode(signature);
+    }
+
+    if (sigDecodedBytes.length != 64 && sigDecodedBytes.length != 65) {
+      throw ArgumentException(
+          "signature must be 64 bytes without recover-id or 65 bytes with recover-id");
+    }
+
+    String messagePrefix = '\x18Bitcoin Signed Message:\n';
+    final messageHash = QuickCrypto.sha256Hash(
+        BitcoinSignerUtils.magicMessage(utf8.encode(message), messagePrefix));
+
+    List<int> correctSignature =
+        sigDecodedBytes.length == 65 ? sigDecodedBytes.sublist(1) : List.from(sigDecodedBytes);
+    List<int> rBytes = correctSignature.sublist(0, 32);
+    List<int> sBytes = correctSignature.sublist(32);
+    final sig = ECDSASignature(BigintUtils.fromBytes(rBytes), BigintUtils.fromBytes(sBytes));
+
+    List<int> possibleRecoverIds = [0, 1];
+
+    final baseAddress = addressTypeFromStr(address, network);
+
+    for (int recoveryId in possibleRecoverIds) {
+      final pubKey = sig.recoverPublicKey(messageHash, Curves.generatorSecp256k1, recoveryId);
+
+      final recoveredPub = ECPublic.fromBytes(pubKey!.toBytes());
+
+      String? recoveredAddress;
+
+      if (baseAddress is P2pkAddress) {
+        recoveredAddress = recoveredPub.toP2pkAddress().toAddress(network);
+      } else if (baseAddress is P2pkhAddress) {
+        recoveredAddress = recoveredPub.toP2pkhAddress().toAddress(network);
+      } else if (baseAddress is P2wshAddress) {
+        recoveredAddress = recoveredPub.toP2wshAddress().toAddress(network);
+      } else if (baseAddress is P2wpkhAddress) {
+        recoveredAddress = recoveredPub.toP2wpkhAddress().toAddress(network);
+      }
+
+      if (recoveredAddress == address) {
+        return true;
+      }
+    }
+
+    return false;
   }
 
   Future<void> _setInitialHeight() async {

cw_bitcoin/lib/litecoin_wallet.dart

@@ -1,6 +1,9 @@
-import 'package:bip39/bip39.dart' as bip39;
+import 'dart:convert';
+
 import 'package:bitcoin_base/bitcoin_base.dart';
 import 'package:blockchain_utils/blockchain_utils.dart';
+import 'package:blockchain_utils/signer/ecdsa_signing_key.dart';
+import 'package:bip39/bip39.dart' as bip39;
 import 'package:cw_bitcoin/bitcoin_address_record.dart';
 import 'package:cw_bitcoin/bitcoin_mnemonic.dart';
 import 'package:cw_bitcoin/bitcoin_transaction_priority.dart';
@@ -17,6 +20,9 @@ import 'package:cw_core/wallet_keys_file.dart';
 import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
+import 'package:bitcoin_base/src/crypto/keypair/sign_utils.dart';
+import 'package:pointycastle/ecc/api.dart';
+import 'package:pointycastle/ecc/curves/secp256k1.dart';
 
 part 'litecoin_wallet.g.dart';
 
@@ -167,4 +173,127 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
 
     return 0;
   }
+
+  @override
+  Future<String> signMessage(String message, {String? address = null}) async {
+    final index = address != null
+        ? walletAddresses.allAddresses.firstWhere((element) => element.address == address).index
+        : null;
+    final HD = index == null ? hd : hd.childKey(Bip32KeyIndex(index));
+    final priv = ECPrivate.fromHex(HD.privateKey.privKey.toHex());
+
+    final privateKey = ECDSAPrivateKey.fromBytes(
+      priv.toBytes(),
+      Curves.generatorSecp256k1,
+    );
+
+    final signature =
+        signLitecoinMessage(utf8.encode(message), privateKey: privateKey, bipPrive: priv.prive);
+
+    return base64Encode(signature);
+  }
+
+  List<int> _magicPrefix(List<int> message, List<int> messagePrefix) {
+    final encodeLength = IntUtils.encodeVarint(message.length);
+
+    return [...messagePrefix, ...encodeLength, ...message];
+  }
+
+  List<int> signLitecoinMessage(List<int> message,
+      {required ECDSAPrivateKey privateKey, required Bip32PrivateKey bipPrive}) {
+    String messagePrefix = '\x19Litecoin Signed Message:\n';
+    final messageHash = QuickCrypto.sha256Hash(magicMessage(message, messagePrefix));
+    final signingKey = EcdsaSigningKey(privateKey);
+    ECDSASignature ecdsaSign =
+        signingKey.signDigestDeterminstic(digest: messageHash, hashFunc: () => SHA256());
+    final n = Curves.generatorSecp256k1.order! >> 1;
+    BigInt newS;
+    if (ecdsaSign.s.compareTo(n) > 0) {
+      newS = Curves.generatorSecp256k1.order! - ecdsaSign.s;
+    } else {
+      newS = ecdsaSign.s;
+    }
+    final rawSig = ECDSASignature(ecdsaSign.r, newS);
+    final rawSigBytes = rawSig.toBytes(BitcoinSignerUtils.baselen);
+
+    final pub = bipPrive.publicKey;
+    final ECDomainParameters curve = ECCurve_secp256k1();
+    final point = curve.curve.decodePoint(pub.point.toBytes());
+
+    final rawSigEc = ECSignature(rawSig.r, rawSig.s);
+
+    final recId = SignUtils.findRecoveryId(
+      SignUtils.getHexString(messageHash, offset: 0, length: messageHash.length),
+      rawSigEc,
+      Uint8List.fromList(pub.uncompressed),
+    );
+
+    final v = recId + 27 + (point!.isCompressed ? 4 : 0);
+
+    final combined = Uint8List.fromList([v, ...rawSigBytes]);
+
+    return combined;
+  }
+
+  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) {
+      return false;
+    }
+
+    List<int> sigDecodedBytes = [];
+
+    if (signature.endsWith('=')) {
+      sigDecodedBytes = base64.decode(signature);
+    } else {
+      sigDecodedBytes = hex.decode(signature);
+    }
+
+    if (sigDecodedBytes.length != 64 && sigDecodedBytes.length != 65) {
+      throw ArgumentException(
+          "litecoin signature must be 64 bytes without recover-id or 65 bytes with recover-id");
+    }
+
+    String messagePrefix = '\x19Litecoin Signed Message:\n';
+    final messageHash = QuickCrypto.sha256Hash(magicMessage(utf8.encode(message), messagePrefix));
+
+    List<int> correctSignature =
+        sigDecodedBytes.length == 65 ? sigDecodedBytes.sublist(1) : List.from(sigDecodedBytes);
+    List<int> rBytes = correctSignature.sublist(0, 32);
+    List<int> sBytes = correctSignature.sublist(32);
+    final sig = ECDSASignature(BigintUtils.fromBytes(rBytes), BigintUtils.fromBytes(sBytes));
+
+    List<int> possibleRecoverIds = [0, 1];
+
+    final baseAddress = addressTypeFromStr(address, network);
+
+    for (int recoveryId in possibleRecoverIds) {
+      final pubKey = sig.recoverPublicKey(messageHash, Curves.generatorSecp256k1, recoveryId);
+      final recoveredPub = ECPublic.fromBytes(pubKey!.toBytes());
+
+      String? recoveredAddress;
+
+      if (baseAddress is P2pkAddress) {
+        recoveredAddress = recoveredPub.toP2pkAddress().toAddress(network);
+      } else if (baseAddress is P2pkhAddress) {
+        recoveredAddress = recoveredPub.toP2pkhAddress().toAddress(network);
+      } else if (baseAddress is P2wshAddress) {
+        recoveredAddress = recoveredPub.toP2wshAddress().toAddress(network);
+      } else if (baseAddress is P2wpkhAddress) {
+        recoveredAddress = recoveredPub.toP2wpkhAddress().toAddress(network);
+      }
+
+      if (recoveredAddress == address) {
+        return true;
+      }
+    }
+
+    return false;
+  }
 }

cw_bitcoin/pubspec.yaml

@@ -28,7 +28,7 @@ dependencies:
   bitcoin_base:
     git:
       url: https://github.com/cake-tech/bitcoin_base
-      ref: cake-update-v4
+      ref: cake-update-v5
   blockchain_utils:
     git:
       url: https://github.com/cake-tech/blockchain_utils
@@ -57,6 +57,10 @@ dependency_overrides:
       url: https://github.com/cake-tech/ledger-flutter.git
       ref: cake-v3
   watcher: ^1.1.0
+  bitcoin_base:
+    git:
+      url: https://github.com/cake-tech/bitcoin_base
+      ref: cake-update-v5
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec

cw_bitcoin_cash/lib/src/bitcoin_cash_wallet.dart

@@ -202,11 +202,12 @@ abstract class BitcoinCashWalletBase extends ElectrumWallet with Store {
 
   @override
   Future<String> signMessage(String message, {String? address = null}) async {
-    final index = address != null
-        ? walletAddresses.allAddresses
-            .firstWhere((element) => element.address == AddressUtils.toLegacyAddress(address))
-            .index
-        : null;
+    int? index;
+    try {
+      index = address != null
+          ? walletAddresses.allAddresses.firstWhere((element) => element.address == address).index
+          : null;
+    } catch (_) {}
     final HD = index == null ? hd : hd.childKey(Bip32KeyIndex(index));
     final priv = ECPrivate.fromWif(
       WifEncoder.encode(HD.privateKey.raw, netVer: network.wifNetVer),

cw_bitcoin_cash/pubspec.yaml

@@ -28,7 +28,7 @@ dependencies:
   bitcoin_base:
     git:
       url: https://github.com/cake-tech/bitcoin_base
-      ref: cake-update-v4
+      ref: cake-update-v5
   blockchain_utils:
     git:
       url: https://github.com/cake-tech/blockchain_utils
@@ -43,6 +43,10 @@ dev_dependencies:
 
 dependency_overrides:
   watcher: ^1.1.0
+  bitcoin_base:
+    git:
+      url: https://github.com/cake-tech/bitcoin_base
+      ref: cake-update-v5
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec

cw_core/lib/nano_block_info_response.dart

@@ -0,0 +1,37 @@
+class BlockContentsResponse {
+  String type;
+  String account;
+  String previous;
+  String representative;
+  String balance;
+  String link;
+  String linkAsAccount;
+  String signature;
+  String work;
+
+  BlockContentsResponse({
+    required this.type,
+    required this.account,
+    required this.previous,
+    required this.representative,
+    required this.balance,
+    required this.link,
+    required this.linkAsAccount,
+    required this.signature,
+    required this.work,
+  });
+
+  factory BlockContentsResponse.fromJson(Map<String, dynamic> json) {
+    return BlockContentsResponse(
+      type: json['type'] as String,
+      account: json['account'] as String,
+      previous: json['previous'] as String,
+      representative: json['representative'] as String,
+      balance: json['balance'] as String,
+      link: json['link'] as String,
+      linkAsAccount: json['link_as_account'] as String,
+      signature: json['signature'] as String,
+      work: json['work'] as String,
+    );
+  }
+}

cw_core/lib/wallet_base.dart

@@ -69,7 +69,6 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   int calculateEstimatedFee(TransactionPriority priority, int? amount);
 
-
   // void fetchTransactionsAsync(
   //     void Function(TransactionType transaction) onTransactionLoaded,
   //     {void Function() onFinished});
@@ -92,7 +91,11 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   Future<void> renameWalletFiles(String newWalletName);
 
-  Future<String> signMessage(String message, {String? address = null}) => throw UnimplementedError();
+  Future<String> signMessage(String message, {String? address = null}) =>
+      throw UnimplementedError();
+
+  Future<bool> verifyMessage(String message, String signature, {String? address = null}) =>
+      throw UnimplementedError();
 
   bool? isTestnet;
 }