CST311: Journal Week 4

This week I learned about security in network applications. I first learned about the fundamental cryptography techniques that make it possible for communication to be encrypted,  validating a person/party authenticating the party with whom one is communicating, and establishing message integrity.

I also learned of how fundamental cryptography principles can be used to create secure networking protocols. I learned about secure protocols in the application layer, transport later, network layer, and link layer. I also learned how to secure e-mail, TCP, and how to provide blanket security for the network later.  Lastly I learned how firewalls and intrusion detection systems can improve the security of an organizational network.

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