Question: 4. (a) In a public-key encryption using RSA, you intercept the ciphertext C-10 sent to a user whose public key is e=5, n=35, what is

4. (a) In a public-key encryption using RSA, you intercept the ciphertext C-10 sent to a user whose public key is e=5, n=35, what is the plaintext M? (You must show Extended Euclidean steps) (10 points) (b) In a Diffie-Hellman scheme, common prime p-7 and a primitive root a-3, (10 points) i. If user A has public key YA 6, what is A's private key XA? i. If user B has public key YB-5, what is the shared secrete K

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