Encryption/Decryption using RSA: Use p = 17, q = 11, and n = p*q = 17 × 11 = 187. φ(n) = (p - 1)(q - 1) = 16 × 10 = 160 PU = {7, 187} is the public key PR = {23, 187} is the private key Encrypt the plaintext message 80. What is the ciphertext message? Question 10 options: 80 90 85 75

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