MultiThreaded Java-Client-Server-Program

Only username is required, and will be prompted for one if one is not entered.

Default port for both programs is set to 20600. Default G set to 1019 Deafult N set to 1823

Project description

This is a multithreaded client/server program.

Many clients can connect to one server, and contents of their chat in a chat room is stored with in a chat file which is created if a user joins an empty chat room, displays to all users when they join, and deletes if they're the last one to leave.

This project runs a client and server program and connets the two given a port name, host name, and username. This version is multi threaded, so the server can accept multiple clients.

How to compile and run the programs

To Compile: javac TCPServerMT.java javac TCPClientMT.java

To Run: Basic run with defualt everything: java TCPServerMT java TCPClientMT

To Run with set variables java TCPServerMT -p (Port Number) -g (Varible used in encryption) -n (Varible used in encryption) java TCPClient -p (Port Number) -h (Host Name) -u (Username)

Credit to borrowed code

Used to help convert milliseconds into hours, minutes, and seconds:

https://stackoverflow.com/questions/10874048/from-milliseconds-to-hour-minutes-seconds-and-milliseconds

Basis of my Diffie-Hellman:

https://www.geeksforgeeks.org/implementation-diffie-hellman-algorithm/

Notes & current bugs: To run with set variables on client, not all 3 are required.

G & N are not properly computed

All clients use the same key

Extremely large numbers have trouble processing