I have created and fully integrated a comprehensive, enterprise-grade WPS Security Control Center and Numpad Lock System inside the WPS Prompt Pro workspace application.

Here is a design and functional overview of the security features implemented:

🛡️ WPS Security Architecture & Features

1. Enterprise App Lock Screen (WpsLockScreen):

   • Tactile Keypad Design: Designed a high-fidelity custom numeric numpad featuring material press animations, instant backspace controls, and visual dot indicator feedback.

   • Incorrect Entry Feedback: Implemented a responsive spring-based shake animation on the dot-indicators when an incorrect PIN is entered.

   • Brute-Force Lockout Protection: Automatically triggers a 30-second countdown lock if 5 consecutive failed entry attempts are registered, preventing unauthorized automated intrusions.

2. Secure Key-Value Management (SecurityManager):

   • Salted Cryptographic Hashing: Leverages standard SHA-256 combined with locally generated unique random salts to secure user-defined PIN passcodes offline.

   • Inactivity Timeout Autolock: Tracks app transitions into the background. The app is automatically locked if backgrounded for longer than the configured timeout period.

3. Recent Window Content Masking (FLAG_SECURE):

   • Restricts content visibility in the multitasking/recents view switcher by blurring or blanking the preview frame.

   • Blocks physical device screenshots or video captures across the workspace to prevent leakage of proprietary company prompts or financial spreadsheets.

4. WPS Security Control Center Dialogue:

   • Exposes customizable toggles to disable/change PIN, configure auto-lock timeouts (Instant, 1m, 5m, 15m), toggle screenshot masking, and enable Brute-Force Self-Destruct (automatically wipes all saved prompt history and settings if 10 failed entry attempts occur).

• Features an Emergency Factory Reset trigger with double-confirmation layers to wipe local cached databases instantaneously.

🧪 Robust Test Coverage

• Added automated JVM Robolectric test specs (SecuritySystemTest.kt) to mathematically verify and protect secure salting hashes, failed counts, recent toggles, and state transitions.