This application is a chatroom as a distributed system.

We used Rabbitmq for asynchronous communication

• each agent has its queue where he receives encrypted messages binded with his username

We need to encrypt messages with RSA protocol

• each agent generates its key pairs
• each agent registers its public key and username in the server

exchanging messages

let's assume that Alice wants to send a message to Bob in an unsecured channel

• Alice configures that its destination is Bob
• Alice receives the public key of Bob
• Alice encrypts the message with the public key of Bob
• Alice sends the message to Bob
• Bob decrypts the message with his private key