CSEC 630 CSEC630 CSEC/630 ENTIRE COURSE HELP – UNIVERSITY OF MARYLAND

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CSEC 630 CSEC630 CSEC/630 ENTIRE COURSE HELP – UNIVERSITY OF MARYLAND

CSEC 630 Lab 1 Assignment

CSEC 630 Lab 2 Assignment

CSEC 630 CSEC630 CSEC/630 ENTIRE COURSE HELP – UNIVERSITY OF MARYLAND

CSEC 630 Lab 1 Assignment

Q1. Which tool or technique from the above list would be the most effective for a cryptanalyst to use to decipher a text encrypted with the Caesar cipher, and why?

Q2. What do you notice about the histogram results when text is encrypted with the Vigenere cipher in comparison to the results of the Caesar cipher? Why is this the case?

Q3. There is an error in the following ciphertext representation of this quote, what is it? What should the correct ciphertext be?

Q4. Of the three ciphers discussed (Caesar, Vigenere, Playfair), what are their relative degree of security and why?

Q5. For each of the following say whether ECB or CBC would be the most appropriate and give a brief explanation as to why.

Q6. What difference do you notice in the block size, discuss whether or not this cipher would be susceptible to statistical analysis and why.

Q7. Analyze the data encrypted with the RSA cipher. How does this encryption method compare to the other methods the Lab has covered?

Q8. What are the advantages of the Hybrid RSA-AES cipher? How does this encryption method compare to the other methods the Lab has covered?

CSEC 630 CSEC630 CSEC/630 ENTIRE COURSE HELP – UNIVERSITY OF MARYLAND

CSEC 630 Lab 2 Assignment

1. When running Snort IDS why might there be no alerts?

2. If we only went to a few web sites, why are there so many alerts?

3. What are the advantages of logging more information to the alerts file?

4. What are the disadvantages of logging more information to the alerts file?

5. What are the advantages of using rule sets from the snort web site?

6. Describe (in plain English) at least one type of rule set you would want to add to a high-level security network and why?

7. If a person with malicious intent were to get into your network and have read/write access to your IDS log or rule set how could they use that information to their advantage?

8. An intrusion prevention system can either wait until it has all of the information it needs, or can allow packets through based on statistics (guessed or previously known facts). What are the advantages and disadvantages of each approach?

9. So, the “bad guy” decides to do a Denial of Service on your Intrusion Prevention System. At least two things can happen; the system can allow all traffic through (without being checked) or can deny all traffic until the system comes back up. What are the factors that you must consider in making this design decision?

10. What did you find particularly useful about this lab (please be specific)? What if anything was difficult to follow? What would you change to make it better?

CSEC 630 CSEC630 CSEC/630 ENTIRE COURSE HELP – UNIVERSITY OF MARYLAND

CSEC 630 Lab 1 Assignment

CSEC 630 Lab 2 Assignment

CSEC 630 CSEC630 CSEC/630 ENTIRE COURSE HELP – UNIVERSITY OF MARYLAND

CSEC 630 Lab 1 Assignment

Q1. Which tool or technique from the above list would be the most effective for a cryptanalyst to use to decipher a text encrypted with the Caesar cipher, and why?

Q2. What do you notice about the histogram results when text is encrypted with the Vigenere cipher in comparison to the results of the Caesar cipher? Why is this the case?

Q3. There is an error in the following ciphertext representation of this quote, what is it? What should the correct ciphertext be?

Q4. Of the three ciphers discussed (Caesar, Vigenere, Playfair), what are their relative degree of security and why?

Q5. For each of the following say whether ECB or CBC would be the most appropriate and give a brief explanation as to why.

Q6. What difference do you notice in the block size, discuss whether or not this cipher would be susceptible to statistical analysis and why.

Q7. Analyze the data encrypted with the RSA cipher. How does this encryption method compare to the other methods the Lab has covered?

Q8. What are the advantages of the Hybrid RSA-AES cipher? How does this encryption method compare to the other methods the Lab has covered?