Secure Chat Application in C (with RSA Encryption & AI Assistant)

##Overview
This project implements a secure chat application using the *C programming language, featuring *end-to-end RSA encryption and an *AI-powered assistant. It follows a *client-server model where users can securely communicate and query an AI assistant for intelligent responses.

##Objectives

• Develop a real-time messaging system using the client-server model in C.

• Implement RSA encryption to ensure secure transmission.

• Integrate an AI assistant that provides intelligent responses via the Ollama API (Mistral model).

• Achieve efficient and optimized communication between users.

  ##Features

🔹 Client-Server Communication

• Supports real-time messaging between multiple clients.
• Uses a dedicated server to manage direct routing.
• Processes user input and responses dynamically.

🔹 End-to-End Encryption (RSA)

• Key Generation: Generates public-private key pairs.
• *Encryption: Messages are encrypted using the *public key.
• *Decryption: The receiver decrypts messages with their *private key.

🔹 AI Chat Assistant Integration

• Command: Users can query an AI assistant using \ask .
• Process:

1. Client sends a query → Server forwards to Ollama API (Mistral model).
2. API processes the request and returns a JSON response.
3. Server extracts the AI-generated answer and sends it back to the client.

• *Tech Stack: Uses *cURL for API requests and JSON parsing for responses.

##How It Works

Start the Server
bash ./server

Launch the Client
bash ./client

#enter the server IP address after running client Chat Securely

• Type messages to send them securely.

• Use \ask to get AI-generated responses.

  ##Conclusion
  This project establishes a foundation for secure and intelligent communication using *C programming. The integration of *RSA encryption and AI assistance ensures both privacy and smart interactions.