UGC NET June-2019 CS Paper-2
August 22, 2024Data-Link-Layer
August 22, 2024Data-Link-Layer
| Question 4 |
Suppose that two parties A and B wish to setup a common secret key (D-H key) between themselves using the Diffie-Hellman key exchange technique. They agree on 7 as the modulus and 3 as the primitive root. Party A chooses 2 and party B chooses 5 as their respective secrets. Their D-H key is
| 3 | |
| 4 | |
| 5 | |
| 6 |
Question 4 Explanation:
For Diffe-Hellaman the secret key is (pab)modn,
where p is the primitive root and n is the modulus and ‘a’ and ‘b’ are the secret values selected by parity A & B.
So answer is,
32×5 mod 7 = 310 mod 7 = 4
where p is the primitive root and n is the modulus and ‘a’ and ‘b’ are the secret values selected by parity A & B.
So answer is,
32×5 mod 7 = 310 mod 7 = 4
Correct Answer: B
Question 4 Explanation:
For Diffe-Hellaman the secret key is (pab)modn,
where p is the primitive root and n is the modulus and ‘a’ and ‘b’ are the secret values selected by parity A & B.
So answer is,
32×5 mod 7 = 310 mod 7 = 4
where p is the primitive root and n is the modulus and ‘a’ and ‘b’ are the secret values selected by parity A & B.
So answer is,
32×5 mod 7 = 310 mod 7 = 4
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