Simple client-server socket chat app encrypted with openssl

Features included:

- Usage of Socket Programming for creating client and server programs
- Usage of Multi-threading for Full Duplex communication
- Possibility to connect multiple clients
- Distinguishing users based on nickname
- Encryption of all messages

Future improvements:

- Possibility to create Chat Logs by the server
- User accounts storage (username, password) and password encryption (hash)

How-to: create your own openssl certificate and private key

Both server.crt and server.key need to be created in the same directory as programs

Private key:

$ openssl genrsa -des3 -out server.key 2048

Certificate:

$ openssl req -key server.key -new -x509 -days 365 -out server.crt

How-to: complie and use

$ g++ server.cc -o server -lssl -lcrypto
$ g++ client.cc -o client -lssl -lcrypto

Usage:

$ ./server <port>
$ ./client <server ip> <server port>