AhmedAtef07 / EncryptedChat

Secure Java server/client chat using different encryption algorithms

Encrypted Chat

Chat server and client. Applying different encryption algorithms.

Coding Preference

• IntelliJ.
• Google Style Guild. [Installing the google styleguide settings in intellij and eclipse] (https://github.com/HPI-Information-Systems/Metanome/wiki/Installing-the-google-styleguide-settings-in-intellij-and-eclipse)

Architecture

Server

• Always up and running.
• Receives a message appends the sender username and send it to all connected clients (broadcast).

Client

• Connects to a server using address and port.
• Send a string message.
• Receives a message, string content, string which client sent that, (time stamp, no later we add that)

Encryption

• The server knows the public key of each client.
• Any client will encrypt the message using server's public key.
• Server will decrypt the message received from a client and send it to the other clients.
• Each client will receive the message encrypted with his own public key.
• Each client will decrypt the message using his own private key.