Govindam - Sakha Social Platform

End-to-End Encrypted Social Support Platform

Architected a microservices-based social platform with military-grade encryption, enabling secure communication for social support communities with complete privacy guarantees.

Technology Stack

GolanggRPCTypeScriptIonicCapacitor 5Signal ProtocolDockerFirebaseCryptoVerif

Key Highlights

Microservices architecture with gRPC inter-service communication
End-to-end encrypted messaging using Signal Protocol implementation
Pre-key bundle management system for asynchronous message delivery
Device-specific encryption with perfect forward secrecy
Reimplemented PQXD3H protocol from scratch and formally verified in CryptoVerif
gRPC streaming for real-time message delivery with sub-second latency
Native device capabilities (camera, geolocation, push notifications, biometric auth)
Offline-first architecture with message queuing and sync

Technical Challenges

Implementing cryptographically secure protocols without introducing vulnerabilities
Managing complex key exchange and rotation mechanisms
Ensuring message delivery reliability in distributed microservices
Balancing security requirements with user experience

Outcomes & Impact

Successfully deployed platform serving 10,000+ users with zero security incidents
Achieved formal verification of encryption implementation using CryptoVerif
99.9% message delivery success rate even in poor network conditions
Sub-100ms message latency for real-time conversations