In Java please show code for

In this project you will develop a secure multithreaded chat service. The goal is to protect a message while in transit by providing a secure communication channe, and not to worry about the host security. The secure communication channel will be implemented using bit- level encryption (or ciphering), and the Diffie-Hellman key exchange mechanism will be used to compute the encryption key. For simplicity, we will use a 1-byte encryption key In this project you will develop a secure multithreaded chat service. The goal is to protect a message while in transit by providing a secure communication channe, and not to worry about the host security. The secure communication channel will be implemented using bit- level encryption (or ciphering), and the Diffie-Hellman key exchange mechanism will be used to compute the encryption key. For simplicity, we will use a 1-byte encryption key