Initial project
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Cody
377
packages/cipher_guard_sdk/example/lib/main.dart
Normal file
377
packages/cipher_guard_sdk/example/lib/main.dart
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import 'package:flutter/material.dart';
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import 'dart:async';
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import 'package:cipher_guard_sdk/cipher_guard_sdk.dart';
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void main() {
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runApp(const MyApp());
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}
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class MyApp extends StatefulWidget {
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const MyApp({super.key});
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@override
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State<MyApp> createState() => _MyAppState();
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}
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class _MyAppState extends State<MyApp> {
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String _platformVersion = 'Unknown';
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final CipherGuardSdkApi _sdk = CipherGuardSdkApi();
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// 加密相關狀態
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RsaKeyPair? _keyPair;
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String? _encryptedPrivateKey;
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SessionKey? _sessionKey;
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EncryptedMessage? _encryptedMessage;
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String _decryptedMessage = '';
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String _statusMessage = '';
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@override
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void initState() {
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super.initState();
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initPlatformState();
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}
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Future<void> initPlatformState() async {
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String platformVersion;
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try {
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platformVersion = (await _sdk.platformVersion()) ?? 'Unknown platform version';
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} catch (e) {
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platformVersion = 'Failed to get platform version: $e';
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}
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if (!mounted) return;
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setState(() {
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_platformVersion = platformVersion;
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});
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}
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// ==================== RSA 金鑰管理 ====================
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Future<void> _generateRsaKeyPair() async
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{
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setState(() => _statusMessage = 'Generating RSA key pair...');
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try {
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final keyPair = await _sdk.generateRsaKeyPair(keySize: 1024);
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setState(() {
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_keyPair = keyPair;
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_statusMessage = 'RSA key pair generated successfully!\nPublic Key: ${keyPair.publicKey.substring(0, 50)}...';
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});
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} catch (e) {
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print("_generateRsaKeyPair error: $e");
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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Future<void> _encryptPrivateKey() async
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{
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if (_keyPair == null) {
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setState(() => _statusMessage = 'Please generate RSA key pair first!');
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return;
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}
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const password = 'user_password_123';
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setState(() => _statusMessage = 'Encrypting private key with password...');
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try {
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final encrypted = await _sdk.encryptPrivateKey(
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privateKey: _keyPair!.privateKey,
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password: password,
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);
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setState(() {
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_encryptedPrivateKey = encrypted;
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_statusMessage = 'Private key encrypted successfully!';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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Future<void> _decryptPrivateKey() async
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{
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if (_encryptedPrivateKey == null) {
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setState(() => _statusMessage = 'No encrypted private key to decrypt!');
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return;
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}
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const password = 'user_password_123';
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setState(() => _statusMessage = 'Decrypting private key...');
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try {
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final decrypted = await _sdk.decryptPrivateKey(
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encryptedPrivateKey: _encryptedPrivateKey!,
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password: password,
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);
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setState(() {
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_statusMessage = 'Private key decrypted successfully!\n$decrypted';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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// ==================== 會話金鑰管理 ====================
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Future<void> _generateSessionKey() async
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{
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setState(() => _statusMessage = 'Generating session key...');
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try {
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final sessionKey = await _sdk.generateSessionKey(initialRound: 1);
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setState(() {
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_sessionKey = sessionKey;
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_statusMessage = 'Session key generated!\nKey: ${sessionKey.key}\nRound: ${sessionKey.round}';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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Future<void> _encryptSessionKey() async
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{
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if (_sessionKey == null || _keyPair == null) {
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setState(() => _statusMessage = 'Please generate session key and RSA key pair first!');
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return;
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}
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setState(() => _statusMessage = 'Encrypting session key with RSA public key...');
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try {
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final encrypted = await _sdk.encryptSessionKey(
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sessionKey: _sessionKey!.key,
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publicKey: _keyPair!.publicKey,
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);
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setState(() {
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_statusMessage = 'Session key encrypted successfully!\n$encrypted';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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Future<void> _decryptSessionKey() async
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{
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if (_keyPair == null) {
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setState(() => _statusMessage = 'Please generate RSA key pair first!');
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return;
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}
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// 這裡應該使用之前加密的會話金鑰
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if (_sessionKey == null) {
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setState(() => _statusMessage = 'Please generate session key first!');
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return;
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}
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setState(() => _statusMessage = 'Decrypting session key...');
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try {
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// 先加密再解密測試
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final encrypted = await _sdk.encryptSessionKey(
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sessionKey: _sessionKey!.key,
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publicKey: _keyPair!.publicKey,
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);
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final decrypted = await _sdk.decryptSessionKey(
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encryptedSessionKey: encrypted,
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privateKey: _keyPair!.privateKey,
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);
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setState(() {
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_statusMessage = 'Session key decrypted successfully!\nOriginal: ${_sessionKey!.key}\nDecrypted: $decrypted';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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// ==================== 訊息加解密 ====================
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Future<void> _encryptMessage() async
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{
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if (_sessionKey == null) {
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setState(() => _statusMessage = 'Please generate session key first!');
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return;
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}
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const plaintext = 'Hello, this is a secret message!';
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setState(() => _statusMessage = 'Encrypting message...');
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try {
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final encrypted = await _sdk.encryptMessage(
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plaintext: plaintext,
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sessionKey: _sessionKey!.key,
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round: _sessionKey!.round,
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);
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setState(() {
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_encryptedMessage = encrypted;
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_statusMessage = 'Message encrypted!\nRound: ${encrypted.round}\nData: ${encrypted.data}';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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Future<void> _decryptMessage() async
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{
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if (_encryptedMessage == null || _sessionKey == null) {
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setState(() => _statusMessage = 'No encrypted message to decrypt!');
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return;
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}
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setState(() => _statusMessage = 'Decrypting message...');
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try {
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final decrypted = await _sdk.decryptMessage(
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encryptedData: _encryptedMessage!.data,
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sessionKey: _sessionKey!.key,
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round: _encryptedMessage!.round,
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);
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setState(() {
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_decryptedMessage = decrypted;
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_statusMessage = 'Message decrypted: $decrypted';
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});
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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// ==================== 原生平台同步 ====================
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Future<void> _syncEncryptionKeys() async
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{
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if (_sessionKey == null) {
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setState(() => _statusMessage = 'Please generate session key first!');
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return;
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}
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setState(() => _statusMessage = 'Syncing encryption keys to native...');
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try {
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await _sdk.syncEncryptionKey(
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chatId: 'test_chat_123',
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activeRound: _sessionKey!.round,
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round: _sessionKey!.round,
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activeKey: _sessionKey!.key,
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isSingle: false,
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);
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setState(() => _statusMessage = 'Encryption keys synced to native platform!');
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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// ==================== 推送通知解密 ====================
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Future<void> _setupAesSecret() async
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{
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// 設置 release.json 中的 AES_SECRET
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const aesSecret = '468171c825c02408cc99935447c785a5';
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setState(() => _statusMessage = 'Setting AES_SECRET...');
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try {
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await _sdk.setAesSecret(aesSecret: aesSecret);
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setState(() => _statusMessage = 'AES_SECRET set successfully!');
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} catch (e) {
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setState(() => _statusMessage = 'Error: $e');
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}
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}
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@override
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Widget build(BuildContext context)
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{
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return MaterialApp(
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home: Scaffold(
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appBar: AppBar(
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title: const Text('CipherGuard SDK Example'),
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text('Running on: $_platformVersion\n', style: Theme.of(context).textTheme.titleMedium),
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const Text('=== RSA 金鑰管理 ===', style: TextStyle(fontWeight: FontWeight.bold)),
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Row(
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children: [
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Expanded(
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child:ElevatedButton(onPressed: _generateRsaKeyPair, child: const Text('生成 RSA 金鑰對',)
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),
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),
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const SizedBox(width: 8),
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Expanded(child: ElevatedButton(onPressed: _keyPair != null ? _encryptPrivateKey : null, child: const Text('加密私鑰',style: TextStyle(fontSize: 10),))),
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const SizedBox(width: 8),
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Expanded(child: ElevatedButton(onPressed: _encryptedPrivateKey != null ? _decryptPrivateKey : null, child: const Text('解密私鑰',style: TextStyle(fontSize: 10),)),),
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],
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),
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const SizedBox(height: 8),
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const Text('=== 會話金鑰管理 ===', style: TextStyle(fontWeight: FontWeight.bold)),
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Row(
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children: [
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Expanded(
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child: ElevatedButton(onPressed: _generateSessionKey, child: const Text('生成會話金鑰',style: TextStyle(fontSize: 10),)),
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),
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const SizedBox(width: 8),
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Expanded(
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child: ElevatedButton(
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onPressed: (_sessionKey != null && _keyPair != null) ? _encryptSessionKey : null,
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child: const Text('加密會話金鑰',style: TextStyle(fontSize: 10),)
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: ElevatedButton(
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onPressed: (_keyPair != null && _sessionKey != null) ? _decryptSessionKey : null,
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child: const Text('解密會話金鑰',style: TextStyle(fontSize: 10),)
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),
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),
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],
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),
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const SizedBox(height: 8),
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const Text('=== 訊息加解密 ===', style: TextStyle(fontWeight: FontWeight.bold)),
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Row(
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children: [
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ElevatedButton(
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onPressed: _sessionKey != null ? _encryptMessage : null,
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child: const Text('加密訊息')
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),
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const SizedBox(width: 8),
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ElevatedButton(
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onPressed: _encryptedMessage != null ? _decryptMessage : null,
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child: const Text('解密訊息')
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),
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],
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),
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if (_decryptedMessage.isNotEmpty)
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Text('解密結果: $_decryptedMessage', style: const TextStyle(color: Colors.green)),
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const SizedBox(height: 8),
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const Text('=== 原生平台同步 ===', style: TextStyle(fontWeight: FontWeight.bold)),
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ElevatedButton(
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onPressed: _sessionKey != null ? _syncEncryptionKeys : null,
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child: const Text('同步加密金鑰到原生')
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),
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const SizedBox(height: 8),
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const Text('=== 推送通知解密 ===', style: TextStyle(fontWeight: FontWeight.bold)),
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ElevatedButton(onPressed: _setupAesSecret, child: const Text('設置 AES_SECRET')),
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const SizedBox(height: 16),
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Container(
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padding: const EdgeInsets.all(12),
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color: Colors.grey[200],
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width: double.infinity,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text('狀態:', style: TextStyle(fontWeight: FontWeight.bold)),
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Text(_statusMessage),
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],
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),
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),
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],
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),
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),
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),
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);
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}
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}
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