
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Transcribed Image Text:• Question 2:
ROT13 is an interesting encryption algorithm in that it has no key.
It uses a form of the Caesar cipher to encrypt text. Try encoding a
message by entering text in the box at http://www.rot13.com/.
Exchange your encrypted message with someone else in class.
Then enter their coded message you've received into the text box.
The message will be revealed. If you apply ROT13 to the text
message, it comes out encrypted. But if you re-apply the same
ROT13 a second time to the encrypted message, it comes out
decrypted. Now why would anyone use an encryption method that
is so trivial to crack?

Transcribed Image Text:Instructions:
Read: Computer Security Fundamentals, 4th edition (Chapter
Eight)
1.
2.
Answer:
Answer the following questions:
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