Secure-Chat

Description

C++ secure chatting application over sockets that uses Deffie Hellman for exchanging session keys, Elgamal Digital Signature for signing key exchange messages and AES for actual messages encryption.

Dependencies

• you have to install python 3 version or higher
• install this package 'pip install pycryptodome'
• install this package 'pip install random2'

How to Run

First Method

1. in Application Directory, run a CMD window
2. run the python script Runner.py using "python Runner.py"
3. this will be enough to open one instance of server and one instance of client

Second Method

in case the script didn't work you can do the following

1. in Application/binaries directory open two different terminals
2. to open a server run "SecureChat.exe config_server.txt"
3. to open a client run "SecureChat.exe config_client.txt"

Changing Keys

in case you want to test another set of keys, a random prime number generator is provided

1. generate a random prime using "RandomPrimeGenerator.py" by running the following command "python RandomPrimeGenerator.py number_of_bits"
2. in Application/binaries there are two text files "config_server" & "config_client" you can replace the current keys with any prime number you want

Demo Video

2024-04-26.23-48-29.mp4