t) Which one of the following is true regarding key size and security in AES? (l
ID: 3755232 • Letter: T
Question
t) Which one of the following is true regarding key size and security in AES? (l poin a. Security increases as the key size increases b. Security decreases as the key size increases c. The algorithm becomes faster as the key size increases d. None of the above 1. 2. Use the exc el sheet provided to you to answer the following questions (4 points) Suppose you are given two prime numbers p 137 and q 139. What is the value of Modulus: Euler Totient b. Write the two criteria to select valid public key e in terms of the above Euler Totient. c. Suppose you select a public key of 19, what is the cipher text corresponding to the plairn text: "MYRSAENCRYPTION"? Given the same public key above, decrypt the Cipher text: "BBVRAOROAAMTABWMBAPT" d.Explanation / Answer
1 d) It is unlikely that if the key size increases the security would increase, but it will help to make the scheme more secure.
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