SecureKey - Secure Secrets & Encrypted Storage for Android

A secure, encrypted, offline secrets manager Android application built with Kivy that allows users to safely store and manage sensitive information like cryptocurrency keys, passwords, and other secrets.

How to Use

1. Build the Android APK:

buildozer android debug

2. Install the generated APK on your Android device

3. Launch the app:

   • Enter the default PIN: 1984 (can be customized during compilation)
   • Set your AES encryption key when prompted (store this safely!)

4. Main Screen Operations:

   • Menu Button (top left):
     • Import: Restore previous encrypted databases
     • Export: Save current encrypted database
     • Add New: Create new encrypted entry
     • Clear Screen: Remove all entries from view
   • Each entry has:
     • Copy button: Copy content to clipboard
     • Remove button: Delete entry from view
   • View AES Key: Displays current encryption key

Features

• PIN Protection: Customizable numeric PIN (modifiable in source code)
• AES Encryption: All stored data is encrypted using AES encryption
• Portable Database: Encrypted data can be exported and imported across devices
• Secure Storage:
  • Individual entries are encrypted before storage
  • Database files are created in a portable format
  • Export/import functionality for backup and transfer
• User-Friendly Interface:
  • Copy-to-clipboard functionality for each entry
  • Easy addition and removal of entries
  • Clear screen functionality
  • Scrollable content view
  • Menu-driven operations

Security Features

• AES encryption for all stored content
• Encrypted database export format
• No plaintext storage of sensitive data
• Secure clipboard operations
• Customizable numeric PIN access

Installation

1. Ensure you have Python and buildozer installed
2. Clone this repository
3. Run buildozer android debug to create the APK
4. Install the APK on your Android device

The buildozer configuration already includes all required dependencies.

File Storage

• Files are stored in /storage/emulated/0/Documents/
• Exported files are named with UTC timestamps
• Databases are encrypted using AES encryption

Security Recommendations

1. Change the default PIN (1984) by modifying the source code before compilation
2. Store your AES key securely - it's required for decryption
3. Regularly backup your encrypted databases
4. Clear screen after use
5. Don't share your AES key or PIN with anyone

Technical Details

• Implements AES encryption for all stored content
• Utilizes pysos for portable database management
• Secure clipboard operations for sensitive data
• Custom PIN length supported (must be numeric)
• Designed specifically for Android platform

Contributing

Feel free to submit issues and enhancement requests!