Question 5625 – Computer-Networks
May 6, 2024Question 5764 – Computer-Networks
May 6, 2024Question 5664 – Computer-Networks
Using data p=3, q=11, n=pq, d=7 in RSA algorithm find the cipher text of the given plain text SUZANNE
Correct Answer: A
Question 604 Explanation:
n = p*q = 33,
Φ = (p-1)*(q-1) = 20,
d = 7 and e = 3 (solve by e*d = 1 mod 20)
Message M= SUZANNE
Here take A = 1, B = 2, C = 3 ….. Z = 26, A = 27, ……
Cipher text = (Me mod n)
⇒ S = 19, Cipher = 193 mod 33 = 28 = B
⇒ U = 21, Cipher = 213 mod 33 = 21 = U
and so on ..
Φ = (p-1)*(q-1) = 20,
d = 7 and e = 3 (solve by e*d = 1 mod 20)
Message M= SUZANNE
Here take A = 1, B = 2, C = 3 ….. Z = 26, A = 27, ……
Cipher text = (Me mod n)
⇒ S = 19, Cipher = 193 mod 33 = 28 = B
⇒ U = 21, Cipher = 213 mod 33 = 21 = U
and so on ..
BUTAEEZ
SUZANNE
XYZABCD
ABCDXYZ
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