cpp-tcp-des-chat

A TCP chat program that uses DES key to encrypt communication content and RSA public key to encrypt DES key, supporting communication between one server and multiple clients. Boost C++ libraries is also used to implement RSA large number operations.

Dependencies

• Boost v1.76.0
• Linux environment is required

Usage

Command line options

• -o or --option : Run as server(s) or client(c) mode. (Required)
• -a or --address : The IP address of the server. (optional)
• -p or --port : The port of the server. (optional)
• -v or --version: Show the version number.
• -h or --help : Show the help message.

Epoll version

Compile

make epoll

Run server

./epoll_chat -o s [-a <listen-ip>] [-p <listen-port>]

Run client

./epoll_chat -o c [-a <remote-ip>] [-p <remote-port>]

TODO

• select/poll versions to be implemented
• Performance/stress test?