Read "Security Vulnerabilities in DNS and DNSSEC" by Ariyapperuma and Mitchell. This paper is about DNSSEC. DNS, as is, is an insecure system; DNSSEC is a proposed extension to DNS to mitigate some of the security concerns. It is not yet widespread.

This paper uses the term man-in-the-middle (MITM) attack. These days, we use the term person-in-the-middle attack, or an on-path attacker.
As you read, think about

Question for Recitation

Before you come to this recitation, you'll turn in a brief answer to the following questions (really—we don't need more than a sentence or so for each question). Your TA will be in touch about exactly how to turn that in.

Your answers to these questions should be in your own words, not direct quotations from the paper.

As always, there are multiple correct answers for each of these questions.