Problem 3. (20 points). Remember that in the One Time Pad (OTP) cryptosystem, the key is as long as the plaintext. A fresh in OTP? random key needs to be generated each time you want to encrypt a new plaintext. Explain why one should never reuse a key Hint: Consider the case where you encrypt plaintext Pi and plaintext F2 (of same bit size) with the same key K, to obtain ciphertexts Ci and C2. What could an adversary learn about Pt and P2 from Ci and C2? In this attack, the adversary has access only to ciphertexts Ci and C2, but not to the key or the plaintexts