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Network Defense 2 (1)

Network Defense 2 (1)

Q Question 1 2 / 2 pts In cryptography, what is the difference between transposition and substitution? Question 1 2 / 2 pts In cryptography, what is the difference between transposition and substitution? Question 2 2 / 2 pts Which of the following is NOT true regarding symmetric key encryption? Question 3 2 / 2 pts Describe asymmetric algorithms. Question 4 2 / 2 pts List and briefly describe the password attack types discussed in your textbook. Question 5 2 / 2 pts What are the positive uses for password-cracking utilities?

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In transposition the positions of letters or words are changed based on the probabilities using 26 letters and 10 numbers. In transposition method both parties have to know the transposition formula like transposing forward three letters by making “A” to “D”, “B” to “E” and so on. As the name suggests the substation method is the replacement of a letter or a group of letters with another letter or group of letters, like reversing the alphabet, so the “A” becomes “Z”, “B” becomes “Y” and so on. Transposition is a change in the position of letters or words. Substitution is the replacement of a letter or group of letters with another letter or group of letters.