I need to encrypt traffic between the client and a server. When the host sends a username and password, it needs to be encrypted and THEN sent to the server. Server decrypts it so it can reference the plaintext document "usernamepassword.txt" . Then the response "Login Successful" or "Login failed" (shown below in ReserveServer.java) The encryption algorithm used is AES and uses Encrypt.Decrypt.java.

EncryptDecrypt.java

ReserveApp.java

ReserveServer.java