Loc-Chain/loc-chain-app
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implemented hashing

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Zachary Atkins 2021-04-10 15:26:51 -05:00
parent 8e2a30647b
commit a7c7133d4f
1 changed files with 13 additions and 3 deletions
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16
loc_chain_app/lib/util/transaction_manager.dart
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@ -3,15 +3,25 @@ import 'package:shared_preferences/shared_preferences.dart';
import 'package:sqflite/sqflite.dart'; import 'package:sqflite/sqflite.dart';
import 'package:fast_rsa/rsa.dart'; import 'package:fast_rsa/rsa.dart';
import 'package:loc_chain_app/util/keyfile_manager.dart';
import 'dart:io'; import 'dart:io';
class Transaction { class Transaction {
Transaction({required this.otherUserID}) { Transaction({required this.hash}) {
SharedPreferences.getInstance().then((s) => _id = s.getString('id') ?? '0'); SharedPreferences.getInstance().then((s) => _id = s.getString('id') ?? '0');
} }
late final String _id; late final String _id;
final String otherUserID; final String hash;
static Hash? makeTransactionHash() {} static Future<String> makeTransactionHash(String otherUserId) async {
String id = await SharedPreferences.getInstance()
.then((s) => s.getString('id') ?? '');
bool idLess = id.compareTo(otherUserId) < 0;
var lesser = idLess ? id : otherUserId;
var greater = idLess ? otherUserId : id;
return RSA.signPKCS1v15("$lesser-$greater", Hash.HASH_SHA256,
KeyFileManager.keyPair.privateKey);
}
} }
class TransactionsDBManager { class TransactionsDBManager {