Introducing Secure Line Protocol

Military-Grade Encrypted Communication

Triple-layer encryption • Zero-trust architecture • UDP-based transport

Explore SLP

What is SLP?

Next-generation secure communication protocol

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Triple-Layer Encryption

Combines TLS 1.3, DTLS 1.3, and Noise Protocol Framework for unprecedented security. Each layer provides independent encryption, ensuring data remains secure even if one layer is compromised.

High Performance

UDP-based transport with intelligent retransmission ensures low latency and high throughput. Designed to handle 10,000+ requests per second with sub-50ms response times.

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Zero-Trust Architecture

No implicit trust between services. Every connection requires mutual authentication with perfect forward secrecy. Built-in protection against replay and man-in-the-middle attacks.

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Universal Compatibility

Works seamlessly with desktop applications via local proxy and web browsers via gateway hub. One protocol, infinite possibilities.

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Real-Time Monitoring

Built-in monitoring dashboards provide live insights into service health, performance metrics, and security events. Identify issues before they become problems.

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Easy Integration

Simple client libraries and clear documentation make integration straightforward. Get up and running in minutes, not days.

Architecture

Layered approach to security and performance

Application Layer

Services like (Klar, Sverkan, Upsum) communicate through clean, intuitive APIs

Central Server Hub (CSH)

Orchestrates service lifecycle, routing, and monitoring. Web-based control center for all operations

SL Protocol Core

Handles packet routing, connection management, and service discovery with intelligent load balancing

Encryption Layer

Triple-layer encryption: TLS 1.3 (session), DTLS 1.3 (datagram), Noise Protocol (end-to-end)

Transport Layer

UDP with custom reliability protocol. Fragmentation, reassembly, and intelligent retransmission

Network Layer

IPv4/IPv6 support with automatic failover and geo-routing capabilities

Technology Stack

Built with modern, military-tested technologies

Python 3.10+ Asyncio FastAPI Cryptography PyNaCl DTLS 1.3 TLS 1.3 Noise Protocol UDP WebSocket Qt WebEngine C++

Use Cases

Powering secure communication across Oscyra ecosystem

🔍 Klar Search Engine

Secure communication between desktop app and search servers. Real-time index updates with end-to-end encryption. Privacy-first architecture ensures search queries never leave unencrypted.

🎓 Sverkan UNP

Secure student authentication and session management. Protected communication for academic records and sensitive data. BankID integration with military-grade security.

📚 Upsum (Project Nexus)

Encrypted knowledge sharing and collaboration. Secure API access for natural language processing. Protected storage and retrieval of Swedish language data.

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