This tutorial gives a quick overview of the basics of network security, including cryptography, authentication, key distribution, and some web basics. It also talks about what is difficult. The real difficulty isn't the cryptography, but basic system issues, especially considering that people are part of the system. We cover topics such as the functional differences between PKI-based systems and Kerberos-like systems, PKI trust models, and enough cryptography to impress a date.

About the Presenter
Although Radia Perlman is most well known for her work in bridging and routing protocols, she has also made significant contributions to network security, including sabotage-proof routing, strong password protocols, PKI models, analysis and redesign of the IPsec authentication handshake (IKE), efficient revocation of certificates, and secure deletion of data. Radia is a Distinguished Engineer at Sun Microsystems. She is the author of Interconnections and coauthor of Network Security, as well as being a series editor for Prentice Hall. She has taught graduate and undergraduate level courses at Harvard and MIT, and is currently an adjunct faculty member of the University of Washington. She has about 60 issued patents, a Ph.D. in computer science from MIT, and an honorary doctorate from KTH, the Royal Institute of Technology of Sweden.