fix: encript env, decrypt when app run

.env.secret.example

@@ -0,0 +1,11 @@
+FERAL_FILE_SECRET_KEY_TESTNET=
+FERAL_FILE_SECRET_KEY_MAINNET=
+CHAT_SERVER_HMAC_KEY=
+AU_CLAIM_SECRET_KEY=
+MIXPANEL_KEY=
+METRIC_SECRET_KEY=
+BRANCH_KEY=
+SENTRY_DSN=
+ONESIGNAL_APP_ID=
+METRIC_ENDPOINT=
+WEB3_RPC_MAINNET_URL=

.github/workflows/android-release-appcenter.yaml

@@ -48,10 +48,22 @@ jobs:
           ${{ inputs.testnet == true }} && echo -e "${{ secrets.DEV_ENV }}" | sed 's/\\n/\n/g' >> .env || echo -e "${{ secrets.STAGING_ENV }}" | sed 's/\\n/\n/g' >> .env
           cat .env
 
+      - name: Create env secret file
+        run: |
+          touch .env.secret
+          ${{ inputs.testnet == true }} && echo -e "${{ secrets.DEV_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret || echo -e "${{ secrets.STAGING_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret
+          cat .env.secret
+
       - name: Submoudles update
         run: git -c submodule.auto-test.update=none submodule update --init --recursive
       - run: flutter pub cache repair
       - run: flutter pub get
+
+      # Encrypt secrets before use
+      - name: Encrypt Secrets
+        run: |
+          ./script/encrypt_secrets.sh ${{ secrets.ENTROPY }}
+
       - run: flutter build apk --flavor inhouse
       - run: mv build/app/outputs/flutter-apk/app-inhouse-release.apk build/app/outputs/flutter-apk/app-inhouse-release-${{ env.NAME_SUFFIX }}.apk
       - name: Distribute apk to App Center

.github/workflows/bmvn_build_appcenter_android.yaml

@@ -78,10 +78,22 @@ jobs:
           ${{ inputs.testnet == true }} && echo -e "${{ secrets.DEV_ENV }}" | sed 's/\\n/\n/g' >> .env || echo -e "${{ secrets.STAGING_ENV }}" | sed 's/\\n/\n/g' >> .env
           cat .env
 
+      - name: Create env secret file
+        run: |
+          touch .env.secret
+          ${{ inputs.testnet == true }} && echo -e "${{ secrets.DEV_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret || echo -e "${{ secrets.STAGING_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret
+          cat .env
+
       - name: Submoudles update
         run: git -c submodule.auto-test.update=none submodule update --init --recursive
       - run: flutter pub cache repair
       - run: flutter pub get
+
+      # Encrypt secrets before use
+      - name: Encrypt Secrets
+        run: |
+          ./script/encrypt_secrets.sh ${{ secrets.ENTROPY }}
+
       - run: flutter build apk --flavor inhouse
       - run: mv build/app/outputs/flutter-apk/app-inhouse-release.apk build/app/outputs/flutter-apk/app-inhouse-release-${{ env.NAME_SUFFIX }}.apk
       - name: Distribute apk to App Center
@@ -95,7 +107,7 @@ jobs:
           release_notes: ${{ inputs.message }}
 
       - name: Upload Sentry debug symbols
-        env: 
+        env:
           SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH }}
         run: |
-          flutter packages pub run sentry_dart_plugin
+          flutter packages pub run sentry_dart_plugin

.github/workflows/bmvn_build_appcenter_ios.yaml

@@ -72,6 +72,12 @@ jobs:
           ${{ inputs.testnet == true }} && echo -e "${{ secrets.DEV_ENV }}" | sed 's/\\n/\n/g' >> .env || echo -e "${{ secrets.STAGING_ENV }}" | sed 's/\\n/\n/g' >> .env
           cat .env
 
+      - name: Create env secret file
+        run: |
+          touch .env.secret
+          ${{ inputs.testnet == true }} && echo -e "${{ secrets.DEV_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret || echo -e "${{ secrets.STAGING_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret
+          cat .env
+
       - name: Flutter doctor
         run: flutter doctor
       - name: Submoudles update
@@ -96,6 +102,11 @@ jobs:
           cd ios/
           pod install
 
+      # Encrypt secrets before use
+      - name: Encrypt Secrets
+        run: |
+          ./script/encrypt_secrets.sh ${{ secrets.ENTROPY }}
+
       - uses: mathieu-bour/setup-sentry-cli@main
 
       # Build and deploy with Fastlane (by default, to ciappcenter track) 🚀.
@@ -120,7 +131,7 @@ jobs:
         working-directory: ios
 
       - name: Upload Sentry debug symbols
-        env: 
+        env:
           SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH }}
         run: |
           flutter packages pub run sentry_dart_plugin

.github/workflows/ios-release-testflight.yaml

@@ -52,6 +52,12 @@ jobs:
           echo -e "${{ secrets.PRODUCTION_ENV }}" | sed 's/\\n/\n/g' >> .env
           cat .env
 
+      - name: Create env secret file
+        run: |
+          touch .env.secret
+          echo -e "${{ secrets.PRODUCTION_ENV_SECRET }}" | sed 's/\\n/\n/g' >> .env.secret
+          cat .env.secret
+
       - name: Flutter doctor
         run: flutter doctor
       - name: Submoudles update
@@ -76,6 +82,11 @@ jobs:
           cd ios/
           pod install
 
+      # Encrypt secrets before use
+      - name: Encrypt Secrets
+        run: |
+          ./script/encrypt_secrets.sh ${{ secrets.ENTROPY }}
+
       - uses: mathieu-bour/setup-sentry-cli@main
 
       # Build and deploy with Fastlane (by default, to ciappcenter track) 🚀.

.gitignore

@@ -53,4 +53,7 @@ app.*.map.json
 # app environment variables
 .env
 .env.development
-.env.production
+.env.production
+.env.secret
+
+lib/encrypt_env/secrets.g.dart

README.md

@@ -23,8 +23,13 @@ Autonomy is the world’s first and only digital art wallet. It gives you one ea
 3. Initialize submodule by running; `git submodule update --init --recursive`
 - If you don't want to clone the auto-test package, simply run: `git -c submodule.auto-test.update=none submodule update --init --recursive`
 4. Initialize the config file. `cp .env.example .env`
-- Contact with Feral File app development team for development env.
-5. Run `flutter run --flavor inhouse` to run Feral File app development on the connected device.
+- Contact with Feral File app development team for development env. 
+5. Initialize the secret config file. `cp .env.secret.example .env.secret`
+- There are credentials information. You may need to provide your own credentials.Contact with Feral File app development team for consultation.
+6. Run ./script/encrypt_secrets.sh <-entropy-> to generate the encrypted secrets file.
+- <-entropy-> is a random string. You can type a random string like akhrdsgl4893tynk3iu4y8hf
+- You only need to run this script again when you want to update .env.secret.
+7. Run `flutter run --flavor inhouse` to run Feral File app development on the connected device.
 
 A few resources to get you started if this is your first Flutter project:
 

lib/common/environment.dart

@@ -5,6 +5,7 @@
 //  that can be found in the LICENSE file.
 //
 
+import 'package:autonomy_flutter/encrypt_env/secrets.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
 
 class Environment {
@@ -42,8 +43,6 @@ class Environment {
       ? connectWebsocketTestnetURL
       : connectWebsocketMainnetURL;
 
-  static String get auClaimSecretKey => dotenv.env['AU_CLAIM_SECRET_KEY'] ?? '';
-
   static String get tokenWebviewPrefix =>
       dotenv.env['TOKEN_WEBVIEW_PREFIX'] ?? '';
 
@@ -53,9 +52,6 @@ class Environment {
   static String get indexerTestnetURL =>
       dotenv.env['INDEXER_TESTNET_API_URL'] ?? '';
 
-  static String get web3RpcMainnetURL =>
-      dotenv.env['WEB3_RPC_MAINNET_URL'] ?? '';
-
   static int get web3MainnetChainId =>
       int.tryParse(dotenv.env['WEB3_MAINNET_CHAIN_ID'] ?? '1') ?? 1;
 
@@ -80,21 +76,15 @@ class Environment {
   static String get feralFileAPIMainnetURL =>
       dotenv.env['FERAL_FILE_API_MAINNET_URL'] ?? '';
 
-  static String get feralFileSecretKeyMainnet =>
-      dotenv.env['FERAL_FILE_SECRET_KEY_MAINNET'] ?? '';
-
   static String get feralFileAPITestnetURL =>
       dotenv.env['FERAL_FILE_API_TESTNET_URL'] ?? '';
 
-  static String get feralFileSecretKeyTestnet =>
-      dotenv.env['FERAL_FILE_SECRET_KEY_TESTNET'] ?? '';
+  static String get feralFileAssetURLTestnet =>
+      dotenv.env['FERAL_FILE_ASSET_URL_TESTNET'] ?? '';
 
   static String get feralFileAssetURLMainnet =>
       dotenv.env['FERAL_FILE_ASSET_URL_MAINNET'] ?? '';
 
-  static String get feralFileAssetURLTestnet =>
-      dotenv.env['FERAL_FILE_ASSET_URL_TESTNET'] ?? '';
-
   static String get extensionSupportMainnetURL =>
       dotenv.env['EXTENSION_SUPPORT_MAINNET_URL'] ?? '';
 
@@ -119,10 +109,6 @@ class Environment {
 
   static String get pubdocURL => dotenv.env['AUTONOMY_PUBDOC_URL'] ?? '';
 
-  static String get sentryDSN => dotenv.env['SENTRY_DSN'] ?? '';
-
-  static String get onesignalAppID => dotenv.env['ONESIGNAL_APP_ID'] ?? '';
-
   static String get awsIdentityPoolId =>
       dotenv.env['AWS_IDENTITY_POOL_ID'] ?? '';
 
@@ -138,14 +124,6 @@ class Environment {
   static bool get appTestnetConfig =>
       dotenv.env['APP_TESTNET_CONFIG']?.toUpperCase() == 'TRUE';
 
-  static String get metricEndpoint => dotenv.env['METRIC_ENDPOINT'] ?? '';
-
-  static String get metricSecretKey => dotenv.env['METRIC_SECRET_KEY'] ?? '';
-
-  static String get branchKey => dotenv.env['BRANCH_KEY'] ?? '';
-
-  static String get mixpanelKey => dotenv.env['MIXPANEL_KEY'] ?? '';
-
   static String get auClaimAPIURL => dotenv.env['AU_CLAIM_API_URL'] ?? '';
 
   static List<String> get irlWhitelistUrls =>
@@ -166,9 +144,6 @@ class Environment {
   static String get payToMintBaseUrl =>
       dotenv.env['PAY_TO_MINT_BASE_URL'] ?? '';
 
-  static String get chatServerHmacKey =>
-      dotenv.env['CHAT_SERVER_HMAC_KEY'] ?? '';
-
   static String get postcardChatServerUrl =>
       dotenv.env['CHAT_SERVER_URL'] ?? '';
 
@@ -184,6 +159,34 @@ class Environment {
 
   static String get autonomyActivationURL =>
       dotenv.env['AUTONOMY_ACTIVATION_URL'] ?? '';
+
+  static String get chatServerHmacKey =>
+      cachedSecretEnv['CHAT_SERVER_HMAC_KEY'] ?? '';
+
+  static String get metricEndpoint => cachedSecretEnv['METRIC_ENDPOINT'] ?? '';
+
+  static String get metricSecretKey =>
+      cachedSecretEnv['METRIC_SECRET_KEY'] ?? '';
+
+  static String get branchKey => cachedSecretEnv['BRANCH_KEY'] ?? '';
+
+  static String get mixpanelKey => cachedSecretEnv['MIXPANEL_KEY'] ?? '';
+
+  static String get auClaimSecretKey =>
+      cachedSecretEnv['AU_CLAIM_SECRET_KEY'] ?? '';
+
+  static String get feralFileSecretKeyTestnet =>
+      cachedSecretEnv['FERAL_FILE_SECRET_KEY_TESTNET'] ?? '';
+
+  static String get feralFileSecretKeyMainnet =>
+      cachedSecretEnv['FERAL_FILE_SECRET_KEY_MAINNET'] ?? '';
+
+  static String get web3RpcMainnetURL =>
+      cachedSecretEnv['WEB3_RPC_MAINNET_URL'] ?? '';
+
+  static String get sentryDSN => cachedSecretEnv['SENTRY_DSN'] ?? '';
+
+  static String get onesignalAppID => cachedSecretEnv['ONESIGNAL_APP_ID'] ?? '';
 }
 
 class Secret {

lib/encrypt_env/secrets.dart

@@ -0,0 +1 @@
+late dynamic cachedSecretEnv;

lib/main.dart

@@ -9,11 +9,14 @@
 // ignore_for_file: avoid_annotating_with_dynamic
 
 import 'dart:async';
+import 'dart:convert';
 import 'dart:isolate';
 import 'dart:ui';
 
 import 'package:autonomy_flutter/common/environment.dart';
 import 'package:autonomy_flutter/common/injector.dart';
+import 'package:autonomy_flutter/encrypt_env/secrets.dart';
+import 'package:autonomy_flutter/encrypt_env/secrets.g.dart';
 import 'package:autonomy_flutter/model/eth_pending_tx_amount.dart';
 import 'package:autonomy_flutter/screen/app_router.dart';
 import 'package:autonomy_flutter/service/configuration_service.dart';
@@ -47,6 +50,8 @@ import 'package:sentry_flutter/sentry_flutter.dart';
 
 void main() async {
   unawaited(runZonedGuarded(() async {
+    final json = await getSecretEnv();
+    cachedSecretEnv = jsonDecode(json);
     await dotenv.load();
     await SentryFlutter.init(
       (options) {

pubspec.lock

@@ -377,6 +377,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.3"
+  cryptography:
+    dependency: "direct main"
+    description:
+      name: cryptography
+      sha256: d146b76d33d94548cf035233fbc2f4338c1242fa119013bead807d033fc4ae05
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  cryptography_flutter:
+    dependency: "direct main"
+    description:
+      name: cryptography_flutter
+      sha256: a7fc3f0de42fb0947cbf213257aa3a69c89df561d104723ede8050658621f292
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
   csslib:
     dependency: transitive
     description:
@@ -568,10 +584,10 @@ packages:
     dependency: transitive
     description:
       name: ffi
-      sha256: ed5337a5660c506388a9f012be0288fb38b49020ce2b45fe1f8b8323fe429f99
+      sha256: "493f37e7df1804778ff3a53bd691d8692ddf69702cf4c1c1096a2e41b4779e21"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.2"
+    version: "2.1.2"
   file:
     dependency: transitive
     description:
@@ -2979,5 +2995,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.2.0-0 <4.0.0"
-  flutter: ">=3.10.0"
+  dart: ">=3.3.0-279.1.beta <4.0.0"
+  flutter: ">=3.13.0"

pubspec.yaml

@@ -163,6 +163,8 @@ dependencies:
   image_gallery_saver: ^2.0.3
   hand_signature: ^3.0.1
   flutter_pdfview: ^1.3.2
+  cryptography: ^2.7.0
+  cryptography_flutter: ^2.3.2
 dependency_overrides:
   intl: 0.18.0
 

script/encrypt.dart

@@ -0,0 +1,40 @@
+// ignore_for_file: avoid_print
+
+import 'dart:convert';
+import 'dart:math';
+import 'package:cryptography/cryptography.dart';
+
+// Example function for encryption
+Future<List<dynamic>> _encryptText(String text, String key) async {
+  final algorithm = Chacha20.poly1305Aead();
+  final bytes = utf8.encode(key);
+  final secretKey = await algorithm.newSecretKeyFromBytes(bytes);
+  final secretBox = await algorithm.encryptString(text, secretKey: secretKey);
+  final encryptText = secretBox.concatenation();
+  return [
+    base64Encode(encryptText),
+    secretBox.nonce.length,
+    secretBox.mac.bytes.length
+  ];
+}
+
+String _generateKeyFromEntropy(String entropy, int length) {
+  final random = Random(entropy.hashCode); // Use entropy's hash code as seed
+  final entropyLength = entropy.length;
+  return String.fromCharCodes(Iterable.generate(
+      length, (_) => entropy.codeUnitAt(random.nextInt(entropyLength))));
+}
+
+void main(List<String> arguments) async {
+  if (arguments.length < 2) {
+    print('Usage: dart encrypt.dart <text_to_encrypt> <entropy>');
+    return;
+  }
+
+  String textToEncrypt = arguments[0];
+  String entropy = arguments[1];
+
+  final encryptedText =
+      await _encryptText(textToEncrypt, _generateKeyFromEntropy(entropy, 32));
+  print(encryptedText.join(' '));
+}