Back with some Networking

What is Network secure communication components?

• Confidentiality: only the sender and the intended receiver should be able to understand the content of the transmitted massege
• Authentication: both the sender and receiver should be able to confirm the identity of the other party  involved in the communication
• Message integrity and unrepudation: making sure that the content of the communication estalished between to authenticated entities has not be altered
• Availability and access control: making sure that legitimate user can access the network services(Denail of service attacks prevention)