Developed a secure payment platform leveraging AEPS (Aadhaar Enabled Payment System) technology for fingerprint-based transaction authentication with end-to-end encryption.
Technology Stack
PythonAngularTypeScriptIonicCapacitorFlaskFirebaseNGRXJava (Android)USB Communication Plugin
Key Highlights
Custom Capacitor USB communication plugin for fingerprint reader integration
End-to-end encrypted channel for sensitive transaction data
AEPS integration for biometric authentication
NGRX state management for complex transaction flows
Firebase real-time database for transaction logging
Native Android module for USB device communication
Admin panel for transaction monitoring and reporting
Karma unit testing with 85%+ code coverage
Technical Challenges
Implementing secure USB communication in a hybrid mobile app
Creating E2E encryption without impacting transaction speed
Handling fingerprint authentication edge cases and failures
Ensuring PCI-DSS compliance for payment data handling
Outcomes & Impact
Processed over 500,000 secure transactions with zero security breaches
Reduced transaction time from 45 seconds to 12 seconds
Achieved PCI-DSS Level 1 compliance certification
99.2% authentication success rate with biometric verification