Network Security Essentials: Protecting Communications
Network Security Essentials: Protecting Communications Protecting communications means keeping messages private as they travel between people and devices. Attackers may listen, alter, or pretend to be someone else. A simple plan rests on three ideas: confidentiality, integrity, and authenticity. Confidentiality means only the right people can read a message. Integrity means the message arrives unchanged. Authenticity helps you verify who sent it. Together, they form a basic shield for everyday work. ...