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The Data Encryption Standard (DES) is a symmetric-key algorithm for the encryption of electronic data, which you studied briefly in T215B. This task aims to assist you in learning more about the DES. Your answer should be as report which starting with introduction and ending with conclusion, the report should be within 1000 - 1200 words (long report, you should adhere to word count), the report should include sections and sub suctions, and at least one figure or table, your report must have proper citations and references. The body of your report should answer the following questions:
1. Define DES?
2. What is the history of DES?
3. Describe the key generation of the Simplified DES algorithm? It is preferable to answer it as a list of points.
4. Describe Simplified DES algorithm? It is preferable to answer it as a list of points.
5. What are the advantages and disadvantages of DES - at least 2 advantages And 2 disadvantages?
6. Is DES secure mechanism to protect electronic data at the present time, justify your answer?
What is the ciphertext (in binary form) generated by the encryption of character D? How is plaintext for this encrypted D recovered?
Suppose that eight more characters were added to the password and that the DES algorithm was changed so as to use all 16 password characters. What would be the expected time to find all users' passwords using a dictionary attack?
Assume that evil Charlie eavesdropped on Bob's message to server. How can he with the help of his equally evil buddy Don, extract key K that Alice and Bob are using to protect their communications?
Any cipher system that needs to avoid encrypting certain messages should be avoided like the plague - what do you have to say for yoursel
Consider a desktop publishing system used to produce documents for various organizations. Give an example in which system availability is the most impotent requirement. Please be very brief.
Suppose monetary advantages of an information system of $50,000 the 1st year and increasing benefits of $5000a year of the next four years year 1=$50,000;
You have secretly picked the value SA = 17. You begin the session by sending Bob your calculated value of TA. Bob responds by sending you the value TB = 291. What is the value of your shared secret key?
TCO C states "Given a computer network for data transmission, identify and analyze possibilities for loss or modification of data. Write down the vulnerabilities of RPC? What are the present methods of securing RPC?
Construct a detail report that will display all courses in alphabetical order, with course name and instructor name in a group header; the Social Security number, name, and telephone number
Information Technology infrastructure groups are often responsible for direct customer interaction and associated customer service.
There has been a discussion for years on which is more important, content or presentation. This is very important when thinking about creating a PowerPoint slideshow.
What password protection measures are normally implemented by system administrators, operating systems, and security services? Describe the pros and cons of enabling audits of resource accesse
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