Which cipher is represented by the following function? void Cipher(string msg, string key) // Get key matrix from the key string int keyMat[3][3]; getKeyMatrix(key, keyMat); int msgVector[3][1]; for (int i = 0; i <=2; i++) msgVector[i][0] = (msg[i]) % 65; int cipherMat[3][1]; // Following function generates // the encrypted vector encrypt(cipherMat, keyMat, msgVector); string CipherText; for (int i = 0; i <=2; i++) CipherText += cipherMat[i][0] + 65; cout << CipherText;

Answer: Option B