🔒 Crypto Secure Wipe

Secure Wipe is a high-security Android utility built with Flutter and Kotlin. It is designed for scenarios requiring a rapid, "scorched-earth" removal of sensitive data. By bridging Flutter’s UI with Android’s DevicePolicyManager, it provides a unified dashboard to monitor storage and execute irreversible data destruction.

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⚠️ CRITICAL WARNING

DATA RECOVERY IS IMPOSSIBLE. This application performs low-level data wipes and factory resets. Once the process is initiated, data cannot be recovered by any standard forensic means. Use with extreme caution.

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📱 Features

Category	Description
🧩 Full Factory Reset	Triggers DevicePolicyManager.wipeData() to return the device to out-of-the-box state.
🗂 Granular Cleaning	Target specific directories: Internal app files, cache, and external data folders.
🖼 Media Purge	Recursive deletion of DCIM, Pictures, Videos, and Download directories.
☎️ Communication Wipe	Clears Call Logs and Contacts databases via Android Content Resolvers.
💬 SMS Destruction	Deep-cleans text message databases (Requires Default SMS app role).
🧾 Live Analytics	Real-time dashboard showing used vs. free space for Internal and SD storage.
🔐 Admin Integration	Seamless flow to request and verify Device Administrator privileges.
⚙️ Modern Scoped Storage	Handles MANAGE_EXTERNAL_STORAGE for Android 11+ compatibility.

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🧠 Tech Stack

• Frontend: Flutter (Dart) for a responsive, material dashboard.
• Native Backend: Kotlin for low-level filesystem access and System API calls.
• Bridge: MethodChannel for asynchronous communication between Dart and Kotlin.
• API Levels: Supports Android 6.0 (Marshmallow) through Android 14+.

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🚀 Getting Started

Prerequisites

• Flutter SDK: ^3.0.0
• Android Studio / Android SDK
• A physical Android device (Device Admin features often fail on Emulators)

Installation & Setup

1. Clone the Repository

   git clone [https://github.com/your-repo/crypto-secure-wipe.git](https://github.com/your-repo/crypto-secure-wipe.git)
   cd crypto-secure-wipe

2. Get Dependencies

   flutter pub get

3. Android Manifest Configuration Ensure your AndroidManifest.xml includes the Device Admin receiver:

   <receiver
       android:name=".DeviceAdminReceiver"
       android:permission="android.permission.BIND_DEVICE_ADMIN">
       <meta-data
           android:name="android.app.device_admin"
           android:resource="@xml/device_admin_rules" />
       <intent-filter>
           <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
       </intent-filter>
   </receiver>

4. Run the App

   flutter run

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📸 Prototype

https://drive.google.com/file/d/1g7P5HMz7LGP3oWrLwzvDExP2FBmhD3jA/view?usp=sharing

https://drive.google.com/file/d/1mOS-h240AWIj31uhnwwnhmjzsISXxJmK/view?usp=sharing

https://drive.google.com/file/d/1tJNtXq0I1HlIVysYojc-2aJ-OxgqC2Ej/view?usp=sharing

https://drive.google.com/file/d/1sqDT-nLXz_jrTw8vt0v2NAFA-Sy2uTHx/view?usp=sharing

https://drive.google.com/file/d/1qY2EbaERiX2kdvJSsm5LLJar-QhuphdI/view?usp=sharing

📋 Permissions Required

To function effectively, the app requires the following high-level permissions:

BIND_DEVICE_ADMIN: To perform factory resets.

MANAGE_EXTERNAL_STORAGE: To bypass Scoped Storage and delete files.

READ_CONTACTS / WRITE_CONTACTS: For contact list purging.

READ_SMS / SEND_SMS: (If set as default) for SMS wiping.

🛡 Security Best Practices Safety Interlocks: The app includes a "Slide-to-Confirm" or double-tap mechanism to prevent accidental wipes.

No Cloud Sync: This app operates strictly offline to ensure no data is leaked during the wipe process.

Recursive Shredding: Files are unlinked and the application attempts to overwrite pointers where OS permissions allow.

🛠 Project Structure

lib/
├── main.dart           # App entry point & Theme setup
├── screens/
│   ├── dashboard.dart  # Storage stats and UI cards
│   └── wipe_screen.dart # Confirmation logic and animations
├── services/
│   └── native_api.dart # MethodChannel implementation
android/app/src/main/kotlin/
└── .../MainActivity.kt # Native Kotlin logic for DPM and File I/O