This is a chat system composed of a TCP/IP server daemon in C and its corresponding java client. You can chat with other peers in clear text or AES password based encryption on your own computer network. The AES password encryption and decryption functions is based on 128 bit key which is padded using SHA-256 applied to the provided password. Further details with instructions in README file.
You can download it from the following link: https://packetstormsecurity.com/files/download/128527/chatroom_source.zip
Source: https://packetstormsecurity.com/files/128527/Chatroom-Client-Server-With-AES-Encryption-Support.html