ed448_goldilock 0.0.2

ed448_goldilock encryption implementation for flutter.

example/lib/main.dart

import 'dart:typed_data';

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:ed448_goldilock/ed448_goldilock.dart';
import 'package:flutter_bip39/bip39.dart';
import 'package:web3dart/crypto.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _keyPair = 'Unknown';
  String _pubKey = "Nothing";
  String privKey =
      "69bb68c3a00a0cd9cbf2cab316476228c758329bbfe0b1759e8634694a9497afea05bcbf24e2aa0627eac4240484bb71de646a9296872a3c0e";

  @override
  void initState() {
    super.initState();
    initKeyPairGeneration();
    initGetPubKey();
    initSignAMessage();
  }

  Future<void> initKeyPairGeneration() async {
    Uint8List seed = mnemonicToSeed(
        "spoon inform surface emerge behind affair web clean outdoor wink tunnel foam estate level round blush lab feed amazing tower proud unlock section social");
    var a = bytesToHex(seed);
    print(bytesToHex(seed));
    String keyPair;
    try {
      keyPair = await Ed448Goldilock.generatePrivateKey(bytesToHex(seed));
      print(keyPair);
    } on PlatformException {
      keyPair = 'Failed to generate keypair.';
    }
// 23ba6752fa239fc2f9537bceaf103c46cd90f95221df4fdf530d94e0f1918b002ef508f9a159beb133bf51fb8b18094935b3858fb5cc822e24
    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _keyPair = keyPair;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Column(
          children: [
            Center(
              child: Text('key pair is : $_keyPair\n'),
            ),
            Center(
              child: Text('pubKey is+' + _pubKey),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> initGetPubKey() async {
    String pubKey;
    try {
      pubKey = await Ed448Goldilock.getPublicKeyFromPrivateKey(privKey);
    } on PlatformException {
      pubKey = 'Failed to generate pubKey.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _pubKey = pubKey;
    });
  }

  Future<void> initSignAMessage() async {
    String signedMsg;
    try {
      signedMsg = await Ed448Goldilock.signWithPrivateKeyNConcatPubkey(
          privKey, "666f6f");
    } on PlatformException {
      signedMsg = 'Failed to generate signedMsg.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;
  }
}