Secure data transmission
Securely exchange messages, documents, photos, and other sensitive data - with multi-layered, end-to-end encryption and complete control over communication.
Project overview
Unlike publicly available communication applications of a similar type, which claim to use end-to-end encryption but do not reveal the system architecture, our system guarantees the confidentiality of communications both by checking the implementation of the cryptographic and communication protocols used, and by the ability to build a complete server infrastructure at the user of the system license. This ensures independence from all external services, including those provided by the system implementer. The content of the communication is systematically protected from unauthorized access, both during transmission and during temporary storage on servers.
Challenge
The challenge was to provide reliable and fully protected internal communication, without relying on public communication platforms and external services. The solution had to protect messages, files and voice calls, with ease of use, centralized user administration and work in various network conditions.
Result
Our solution enables secure messaging, file and multimedia exchange through private and group channels, as well as encrypted voice calls. The system supports service notifications, offline operation, push notifications and message status tracking. Communication is protected by end-to-end encryption, continuous user authentication and secure storage of private keys.
System architecture
The system architecture connects the key project components into a unified data flow.
- The system is based on a secure client-server architecture. Users connect to a central point according to a star topology. The exception is voice calls: when certain technical conditions are met, an encrypted audio connection can be established directly between users, ensuring maximum confidentiality.
- The system is designed as a scalable multi-server architecture, with one or more server instances dedicated to each system function: messaging, file sharing, and voice calls. This approach ensures high availability, performance, and separation of functional responsibilities.