Client-Server Encryption and Decryption System

This project implements a secure client-server communication system in Java, utilizing encryption and decryption techniques to ensure data confidentiality. It features a graphical user interface (GUI) developed using Swing and AWT.

Table of Contents

• Overview
• Features
• Technologies Used
• Setup and Installation
• How to Run
• Usage
• Screenshots
• Future Enhancements
• Contributing

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Overview

The project demonstrates secure data transfer between a client and a server using encryption algorithms. It includes a Java Swing GUI for user interaction, making it a complete solution for learning and applying cryptography in Java.

Features

• Client-Server Architecture:
  • Communication over sockets for sending and receiving messages.
• Encryption and Decryption:
  • Ensures data security using standard cryptographic algorithms (e.g., AES, RSA, or others).
• Graphical User Interface (GUI):
  • Built with Java Swing and AWT for better usability.
• Secure Key Exchange:
  • Keys are exchanged between client and server securely to prevent interception.

Technologies Used

• Java SE: Programming language and core libraries.
• Swing: For creating a graphical user interface.
• AWT: For additional GUI components.
• Socket Programming: For client-server communication.
• Cryptographic Algorithms: For data encryption and decryption.

Setup and Installation

Prerequisites

1. Java JDK 8 or higher installed.
2. Basic understanding of Java Swing and socket programming.
3. An IDE such as IntelliJ IDEA, Eclipse, or VS Code.

Steps

1. Clone the repository:

   git clone https://github.com/rajendrapancholi/client_server_encrypt_decrypt.git

2. Navigate to the project directory:

   cd client_server_encrypt_decrypt

3. Open the project in your preferred IDE.

How to Run

Compile the Java files:

Open a terminal and navigate to the src folder where the .java files are located. Compile both files:

javac EncryptionServer.java EncryptionClientGUI.java

Start the Server:

Run the EncryptionServer class to start the server:

java EncryptionServer

This will open the server-side interface and prepare it to handle client requests.

Start the Client:

Run the EncryptionClientGUI class to launch the client-side GUI:

java EncryptionClientGUI

This will open the client application where users can enter messages to encrypt and send to the server.

Communicate:

Use the client GUI to send encrypted messages to the server. The server will receive, decrypt, and display the original message.

Usage

• Launch the server application (EncryptionServer.java).
• Open the client GUI application (EncryptionClientGUI.java).

Use the GUI to:

• Enter messages to encrypt.
• Send encrypted messages to the server.
• View decrypted messages on the server.

Screenshots

1. Application Home Interface

2. Encrypt texts

3. Decrypt texts

Future Enhancements

• Add support for multiple clients.
• Implement advanced cryptographic algorithms.
• Incorporate secure authentication mechanisms.
• Optimize GUI design for better usability.

🛠️ Contribution Guidelines

We welcome contributions! If you'd like to improve existing solutions, add new ones, or fix bugs, please consider the following steps:

1. Fork the repository.
2. Create a new branch (git checkout -b feature/your-feature).
3. Make your changes and commit them (git commit -m 'Add feature').
4. Push to the branch (git push origin feature/your-feature).
5. Open a pull request.

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🤝 Contact

For any queries or feedback, feel free to reach out:

• Rajendra Pancholi: rpancholi522@gmail.com
• Website: www.rajendrapancholi.com
• LinkedIn: www.linkedin.com/in/rajendra-pancholi

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Happy Coding Journey! 👨‍💻👩‍💻