Hour 23. TCP/IP Security

What You’ll Learn in This Hour:

• Encryption

• Certificates

• Securing TCP/IP

As you learned in the last hour, unauthorized users go to great effort just to intercept communication and sneak onto other people’s networks. The experts have been getting better at hiding TCP/IP communication so intruders can’t learn secrets on the network. In this hour, you learn some of the important methods for securing TCP/IP.

At the completion of this hour, you’ll be able to

• Define the terms encryption algorithm and encryption key

• Discuss symmetric and asymmetric encryption

• Describe digital signatures and digital certificates

• Describe the TCP/IP security protocol systems TLS/SSL and IPSec

• Explain what a virtual private network is and how it works

• Describe the Kerberos authentication process