Computer Science 010
Introduction to Computer Applications

Fall 2010, Siena College

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Agenda

• Announcements
• Lecture assignment recap
• Web security
• Encryption
• Threats

Lecture Assignment 21

Due at the start of class, Monday, December 6.

Please submit answers to these questions in Blackboard by the start of class. We will discuss these questions at the start of class, so no late submissions are accepted.

1. We saw in class how http web connections are made in clear text (the data transmitted may be seen by others) while https connections are encrypted. Name two reasons why all web traffic doesn't use https.
2. Explain how a certificate from a trusted authority would prevent the man in the middle attack described in class involving the message from Alice to Dilbert that was intercepted by Catbert.

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